the world s top guitar sound TOP12 one

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The top few rows of the world s classic electric guitar sound, almost all of them use the vacuum tube sound! Because of the use of

the vacuum tube sound emitted by electric guitar sound, absolutely not an ordinary circuit board out of the speakers can copy!! Use

of vacuum tube power issued to the guitar amp features a very "warm", very "vigorous"! its rich harmonic circuit board speaker is

"artificial harmonic" can not create it! Generally speaking, the speaker series issued by the British to the sound has a more bright, crisp,

rich overtone characteristics and the United States issued a series of guitar speakers to the sound, there tends to be "warm" and

"vigorous" character! it will be mentioned below the BRIT-SOUND (UK sound) we know is more bright than the brittle point. electric

guitar amplifier and speakers by speakers of different combinations can be divided into STACK (separate amplifier and speakers), and

COMBO (amplifiers and speakers into one of the speakers), general "STACK" higher power output, the volume is high, suitable for use

in large venues, and "COMBO" is used when performing exercises or smaller venues with.
1, VOX AC-30

VOX AC-30 is a very well-known guitar speaker! It was in 1963-64 when they used the guitar BEATLES speakers!! Its tone is the

standard BRIT-TONE! Bright, crisp, rich in overtones!! It is Use five ECC83 (or 12AX7) and a ECC82 (or 12AU7) of the vacuum tube in

PREAMP (preamp) District to the other with a GZ34 rectifier tube, four EL84 vacuum tube in POWERAMP area, power of 36 watts

two 12-inch Laba, a total of 3 CHANNEL is available from the "brilliant", "normal", to "vib-trem" Whether you are playing ClassicRock,

Pop, Blues, to HeavyRock, VOX AC-30 can put what you need The sound is very faithful to the show. with AC-30 outside the most

famous addition to BEATLES, THE ROLLING STONE concert where they also use the AC-30!!! and LED ZEPPELIN s JIMMY PAGE is

often used to record AC-30 record!! there, AC-30 s appearance is very beautiful! nearly black shell, dark brown on the web there

woven gold thin strips!! it seems more noble!!

2, CRATE BLUE VOODOO

CRATE s "BLUEVOODOO" with output power of 60 and 120 watts of two models, their sound is HignGain sound – rich, warm, fierce

enough!! CRATE s "BLUEVOODOO" four 12AX7 vacuum tube used in the PREAMP area, four 6V6 vacuum tube in POWERAMP area, a

total of two Channel were clean and distortion, while the Channel there are two separate REVERB effect (called DualReverb), plus the

type of effects can be arranged for loop (Switchable Effect Loop), making "BLUEVOODOO" feature more diverse with the Blue

Voodoo is the most famous super-lashing heavy metal group MEGADETH guitarist MARTYFRIEDMAN Thus, it s Distortion is certainly

fierce enough, enough power!!

3, HUGHES & KETTNER TRIAMP

The general market in the vacuum tube stereo sound can not be on the best of both worlds!! Like to "enough force" Destortion

known Marshall speakers, although it is subject to rock and metal Leadchannel guitarist welcome, but the Marshall speaker CleanTone it

is very Another person can not experience the .. (not very clean, distortion) opposite to clean CleanTone famous FENDER speakers,

but it is very LeadChannel HUGHES & KETTNER not force the TRI-AMP seems not to improve a variety of shortcomings of the

production! HUGHES & KETTNER the "TRI-AMP" is the only commercially available three separate AMP!! Clearly speaking, it s three

Channel all have their own tube!!! unlike most of the vacuum tube speaker even if there are three Channel is only a vacuum tube to

"simulate" three kinds of sound!! and the TRIAMP HUGHES & KETTNER tube inside a more than ten or more!! more to the AMP are

presented like a like a rising sun gold!! In addition to the speakers sound really good, the visual enjoyment but also other vacuum tube

speaker does not have!! (which may be tried in person to know!) TRI-AMP sound very diversity!! It can be faithful to express different

types of sounds, from the first CHANNEL warm, sweet, clean, and the second CHANNEL vigorous, enough power, enough to crisp

(Crunch) of the Blues, RockTone, to the third CHANNEL Super Distortion (Lead ) and can be arranged entirely HeavymetelTone!!! Of

course, in terms of price, this German-made high-level speakers is not cheap (because it is the number of vacuum tube speaker is

three times the other!!)

4, SOLDANO SLO100

SOLDANO the "SuperLeadOverdrive100" is a 100 watt amp head with 4×12 speaker combo box but it also has the type, is to add a

2×12 speaker. SOLDANO guitar sound is well-known U.S. brand manufacturer, and SLO100 is SOLDANO first production out and the

most famous speakers!! It uses four 12AX7 vacuum tube in the PREAMP area, four of the vacuum tube in POWERAMP District 5881, a

total of two Channel, one is "Normal", one is the "Overdrive", in NormalChannel, the Clean and Chrunch you can switch the two

modes, in addition, SOLDANO also had a "Bright" switch button, you can make the sound brighter. the other is OverdriveChannel, he

can issue a "HighGain" ultra-high energy distortion of the sound!! absolutely enough power!!

5, MARSHALL JCM900 SL-X

"Marshall" in the world is almost the "electric guitar sound," a synonym!!! All of the rock concert scene in ten at least five are used

Marshall guitar speaker!! Marshall, although the product of the British Empire, but its tone is typical and BRIT-SOUND different!! its

sound but close to the U.S. series of guitar speakers is very "warm", "strong" and "vigorous"!! distortion of the energy intensity of its

HighGain like Rocky fist to the general whenever you touch the strings Pick the moment, "bang" "bang" "bang" sound from the

speaker s speakers out!!! No wonder the play heavy metal, rock guitarist all of them have loved Marshall s speaker! !! either Fender or

Gibson and Marshall are a good combination!! Jimi Hendrix is ​​to use the Fender Stratocaster coupled with Marshall s JTM45, sounds

great!!! with crisp sound deep in!! and Slash is a the name of the combined use of Ginson add Marshall!! people who sound like him, no

matter how you use other than the Gibson guitar and Marshall, speakers, and even to mimic the effects are almost impossible!

6, PEAVEY 5150

PEAVEY of 5150 Is there anything to do with VAN HALEN? Believe like VAN HALEN some friends on the "5150" figure familiar!! Yes

PEAVY the 5150 Combo is the recent EDDIE VAN HALEN and PEAVY co-production of the speaker, it uses the five 12AX7 vacuum

tube in the PreAmp area, four 6L6 vacuum tube in POWERAMP area, 65 watts, two 12 inch speakers, EDDIE VAN HALEN whether in

recorded music or live performances will need it! sound warm and enough power!! this be PEAVEY most proud of a guitar speaker,

because they usually are in manufacturing circuit boards, speaker-based company, less production of the vacuum tube electric guitar

sound.

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Lin Fu yuan VCs need to do is to find the fairy like entrepreneurs

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Born in China Taiwan\\ s Lin Fu-yuan is the first group of Chinese American Silicon Valley venture capitalists, 1991, made its first investment after 20 years, the succession has invested more than 50 companies, now has more than 20 listed or to be sold.

In addition to investors, Lin Fu-yuan, or the world-renowned speaker, motivation speaker known as Taiwan. Today, Lin Fu-Yuan served as chairman or director of several companies, more well-known venture capital shares of the Group\\ s multi-sponsor, vice chairman of the Internet lab, Acorn Campus Ventures Incubator Incubator Center (Acorn Campue) co-founder people.

Interestingly, Lin Fu-yuan also love rock, receiving a weekly correspondent in an interview a few days ago, he launched the \"Silicon Valley Orchestra\" has just held a small concert.

\"I was lucky fool.\"

A weekly financial: how much your investment has done?

Lin Fu-yuan: 50 is the cumulative number of companies, more than 20 success stories. I had 20 years of investment, when the young have little control over more than a dozen companies, a director or chairman of the board, I can not go in every company Trader, I am an investor, not the operator, I do is to find a good operator. Now I am a little older, and active participation in the management of the company is only 4-5 at home.

I invested in 50 companies to sell more than 20, some of which the company nearly went bankrupt, there are now slowly developed more than a dozen, there is about 6 the next 3-5 years may be acquired or to sell, my goal is to invest in the future to have a total of 30 were successful. From an angel investor\\ s perspective, I was a very good luck fool.

But I must write down to remind ourselves that these are not my own brilliant success of talented, but the founder of these companies and operators of their efforts to live up to expectations, a good investor just at the right time to find the appropriate object only. Whether there are a lot of cover, they often speak of the man is not the same, I always think there is no god under the sun like a VC (venture capital), only the fairy-like entrepreneurs. VC to do is to find the fairy-like entrepreneurs.

A weekly: domestic venture capital is very hot now, you have no feeling overheated?

Lin Fu-Yuan: I was in the U.S. venture capital and angel investors do most of the older generation of Chinese. In 2000, I lecture in Shanghai VC, then to more than 2,000 people, where I talk about the VC, a lot of people ask me how to do VC, now I look, to listen to a lecture at the people, many have become the magazine\\ s man of the VC. China has developed rapidly, the Chinese people, and everyone has to catch up mentality, the spirit of good, I felt in Silicon Valley over the past 30-40 years the entrepreneurial spirit in many parts of China has long been mushroomed out. Last week I made a speech in the U.S. Silicon Valley, only 100 people, then I received 60 business plans.

\"The most dangerous is a smattering of knowledge.\"

A weekly: many domestic enterprises are highly repetitive, especially the Internet, a new model soon to be a lot of copy, this situation will not affect investment?

Lin Fu-yuan: the Internet is more obvious, in fact, many technology-related industries such, which I used to write the book on the written stage of success, the hero of the transition period. Said IT, from large computers into a small computer, and then into a small notebook computer into the iPhone, which has gone through several dynasties, and each dynasty has people very, very red, but no one was sustained. Besides China, what PHS, incredibly fire a few years ago, now give it unwanted, this is the stage of success.

Now cloud computing, how gorgeous this concept, in fact, it is simply the old IT stuff, four or five years ago in the timeshare (a computing resource, we can share a different time), cloud computing is the same , and it is spread out cloud computing, together is the central control. Consulting industry, the technology industry have a great talent, the old questions in different ways packaging, manufacturing a number of heroes, the Internet is the same, only the transformation model, I have to do is find the gorgeous repeated inside real capable of.

A weekly: that is how when your investment choices?

Lin Fu-Yuan: I\\ ll talk about this case far from healthy alliance. In 2005, I met Deng far Union general healthy, he and I run for two years, I am an angel investor\\ s identity to support this project, in 2005-2007, we can not carry out the project, encountered many difficulties , during which he thought of giving up, I said now is the best time, early to do what you are cannon fodder, do not your night. I watch others to see if he can not play, credibility, team ability. Of course, the market prospects of the project also needs attention.

A weekly: You made a multi-year investment, involving many industries, you know all of the industry?

Lin Fu-Yuan: Only the most stupid people will think they can understand all of the industry, I\\ m not smart, not stupid, I will not try to understand everything. The most dangerous person is the kind of smattering of people, only one thing now decided trend, is the market demand function definitions, functions to create the shape, many people have something to start is to go to this thing to meet any demand, the best projects should know how many people in need. I now invest in health care, primary medical services, fail to get a lot of things I do, I can not open the hospital. Do laboratories, I\\ m open, but too large, my age, if I give my 30 years did, so I do services like this service, 20 years ago from scratch, now from there to the good, the future will be from good to have personality.

\"In Silicon Valley do not deal with governments.\"

A weekly financial: investment in China to do more or less have to deal with governments, to communicate your feelings and the mainland government and foreign what is the difference?

Lin Fu-Yuan: I am the founder of Acorn Campus, was deputy mayor turns on stage three mainland to contact with us. I think about it, China has many \"two exemptions and three reductions\", grant of land, build factories.

What the U.S. Silicon Valley is a strange place? I did 30 years in Silicon Valley career, in addition to applying for a license, approval to send written materials into, I do not remember and the government had dealings. In fact, Silicon Valley, the government should not friendly, it manages a lot, I remember that I have done a photoelectric boiler, German equipment to buy into, to several million dollars, but the fire brigade came, said I to deter violations, boil Ins and Outs a year can not, can not be started. If this kind of thing in China, certainly the local government attracts me to industrial area, just call, or eat a meal on the right.

However, less government control and more control is necessary at this stage, because the future of innovation rely on the government to write a slogan useful? Future will be to talent to innovate, at least the company\\ s leaders have a sense of innovation.

\"Life is full of choices,

You see what attitude to take. \"

A weekly: Do you remember your first investment?

Lin Fu-Yuan: I was chief, and while doing engineering while doing angel investments. I cast the first case in 1991, 1995, on the market, I admit that I was lucky. Of course, if not all pure luck, must have a basic understanding of business, requires a certain awareness.

A weekly: I also see a lot of engineers in the country, but they do not like you think investment company, is not particularly Silicon Valley engineers the ability to invest?

Lin Fu-Yuan: I did not start a lot of money, live frugally with a little money, and slowly make up. My twenties and thirties, when Toyota has been opened, my friends and my income, they have money to go to open Mercedes – Benz, I drive Toyota parked in the back to the party are. Life is full of choices, see what your state of mind to grasp. I\\ ve invested in a domestic products center, voted $ 150,000, $ 50,000 of my own, and $ 50,000 borrowed with my parents, my father-in with $ 50,000 borrowed.

Many people thought he did not hit a good opportunity, this statement is absolutely wrong. Each individual encounter every day in the life opportunities, opportunities across the hands, and runoff from the fingers. Many opportunities for it in your hands you too well, picking up other people to go into google, into Yahoo. Some people say google I thought, the problem is that some people do, some say a lifetime.

A weekly: at home, many do IT are complaining that they are porters, Silicon Valley is there such a situation?

Lin Fu-yuan: Silicon Valley, if you do, are porters may all die out, if ever moved around, never will be innovative, creative wisdom into a slogan, innovation requires talent, if it is not always as porters innovation, and most can do the following Gou production workers.

The importance of intellectual property in Silicon Valley is well known, more and more national attention on intellectual property, I do not attach great importance to the practice of porters, usually a good engineer team, leaders must be creative, innovative, he has done out of something moving in the back only. A good engineer in Silicon Valley to be recognized, the need for basic core values, there must be execution. Even if there are good porter porters porters and poor, a common porter, a function to write 1000, a 500 may have the ability to finish, the best person they went to IBM, iPone, almost The manufacturer of the class went to the place to go.

In addition, pluralism, while the ability to write software is growing. But only this is not enough, said Apple, which is the film companies, entertainment companies, music companies, game companies, what it is. Now the real value of the industry is no longer a simple technology industry, the future is the most valuable mix of industry, the most valuable talent is a mixture of talent, engineers have to understand finance, manufacturing to understand to do financial. For example, red is now more of an industry, medical equipment, I would not invest in three engineers, three doctors will not invest, I will invest three engineers +3 medical team composed of medical equipment.

\"Community organizations can also profitable.\"

A weekly: Your enthusiastic public welfare, and now many types of public service, how do you choose to do public good way?

Lin Fu-Yuan: I can not say I do a lot of public service, but I do, I was a member of the European Fren community, the larger public interest organizations in Europe and America, they had a famous saying, Service above self (beyond self-service). I have a chain of restaurants in Taiwan, the future will have 20 stores, is also preparing to open in Shanghai, I invested in the store when the mandatory money each year, when investors get back three times since, to bring 10% for public service, not to donate to, is our own doing.

Now the public interest and public welfare is not the same as before, the previous public to see a lot of money, just like a famous Mainland surnamed Chen, spreading the money around, which is a practice, after the success of any energy left, there there spread the money, you can also get fame and fortune, the company\\ s image very well. And now the public will become one-stop since, in the future the University will make public a number of trained people, I think that public institutions can be profitable, it was Bill Gates\\ s charity fund trader, 18% of annual profits.

A weekly: you do not like rock and roll?

Lin Fu-Yuan: I do rock out over 40 years, this is my interest, you have not heard me play the piano, I was very professional level. KTV is always better than the feeling of live performance, however, I only performed a month, 600 people live, to sing for four hours, my only drawback is that the sound did not sound good singing, but I will sound, in September , there are two in October, I believe will be very High.

A weekly: You are a speaker, a lot of speaker is very good at good at doing that, you say more or do more?

Lin Fu-Yuan: I do a lot of speech in China, the United States have done a lot of Silicon Valley, I may belong to the reverse operation, I do first investment, dare to do a lot of success out after the lecture, or just use your mouth to say what is virtual .

A weekly: you are speaker, but also like music, you have a relatively strong performance of desire?

Lin Fu-Yuan: I do not know who is the real desire is not performing, performing in different ways by the desire to tend to come out. Take the media, as a reporter, ask a question, want to be better than any other reporter asked, this is a desire to perform. Children want to be a teacher appreciation, which is the desire to perform. Performance can let people know my good, I can share the fun.

\"Particularly fond of reading novels.\"

A weekly: You come to Shanghai in 2004, when he said that grandstanding are many books available in the market, now is there is this view?

Lin Fu-Yuan: either newspaper or the publishing industry, I say it nicely, it can be said is twilight, like a little tiny Taiwan, does not include magazines, out of 45,000 new books a year, the mainland out of 100,000 new books a year, very competitive. 98% of the book are the author\\ s own expense, printed a 500 to someone else. I think it is not easy to write a good book, the less likely a good book, the authors locate in line with the publishers to find and sell a good book more difficult, ordinary people need not work, there is little to see a book on love and go out and buy.

I see too many books, many books just packaging, content is the porter, as some people write inspirational biography, I just think it is a trickster, in particular, many people nothing, still writing inspirational books, actually also selling well.

A weekly: What do you think the book is worth watching?

Lin Fu-Yuan: I think the three kinds of homework, and no less a professional book, reading a couple of months we should, this book includes investment. The second is the classic book, \"Les Miserables\", \"Outlaws of the Marsh\", \"Three Kingdoms\" and other books that are bottoming. The third book is self-cultivation, not to say look at Buddhism, after reading as many novels, sensibility is very strong, I would particularly like to read novels, read many books on the dogma that could not stand, for example, teacher Lin you, Miss you like the teacher, this book could not stand.

A weekly: childhood, when we read, the teacher let us look at classic books, classic books that you are now, classical books in the end to see what\\ s the use?

Lin Fu-yuan: young, people will ask what you would do through to locate the person you are, to the 30-40 years old, people will ask you how to experience, to my age, I often met with CEO, General Manager, Director, independent directors, entrepreneurs, I will ask him, what you did, I want to know how the spirit of this man, how to play power, the credibility of how, of course, I would have investigated it very clear. This is not to say you read a book, you can learn how to build temperament, which requires annual accumulation, read classic books can do that. Some people talk, citing a speech on love, which is actually a show off, some things need to breed temperament mix together.

A weekly: You were born in China Taiwan, then went to America to study in the mainland, many people like to study abroad, whether in Taiwan is that?

Lin Fu-yuan: want to go abroad for two levels of curiosity and up, not tell the country is not up. I invested in each company requires international, the greatest enterprise of the greatest people think is international, in particular, the Internet is now so well developed, competitors may not be across the street, might in India, in the UK, in other countries .

China Taiwan\\ s education and good, but a great American university education, I went to the United States only know what to think independently and education in Taiwan and the mainland, are spoon-feeding education, to see who will be back. I and others talk about, they rarely ask what school graduate. I think going abroad is an experience of life, absolutely. I often encourage people to go abroad, go abroad to absorb the experience of multinational companies is very important.

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cast iron plate measuring grinding should pay attention to the problem


Cast iron plate measuring abrasive materials generally used in the selection of corundum, boron carbide, diamond powder, chromium oxide, iron oxide, etc.
Cast iron plate measuring the grinding process should note the following:
1), to use a good polishing powder to clean the workplace, so the surface was shaving.
2), master of grinding speed and grinding pressure; high accuracy and complex shape of the surface, ground speed should be lower. The size of the workpiece material grinding pressure and abrasive nature of the material and other factors. Grinding pressure 0.15 ~ 0.2MPa most efficient when grinding.
3), grinding, generally the first higher pressure with a low speed for coarse and research, after passing the basic geometric shapes, and then less pressure and high speed lapping.
4), selection of suitable abrasive, avoid abrasive wear too fast.

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Ha axis with the actual theme of Education for the work carried out to achieve zero defect

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Ha-axis with the actual theme of Education for the work carried out to achieve zero defect

Ha axis small cone bearing branch with reality, focus on zero defect management, and do the work once the requirements of solid carry out the "strong management, the quality and enhance the quality of the image" theme educational activities to ensure that the factory production and management completion of the task.

To truly grasp the theme of education, the factory team unity of thinking, in the show program, based on a work team leader will be held, the functions of party members and cadres to mobilize the participation of key production personnel, and strive to achieve the participation of all, do not stay dead. Asked the foreman, director every meeting, say, the activity schedule, specific requirements for timely notification to workers, so that the activities carried out by solid and effective, not a mere formality.

They combine their activities to specific work, first with enhanced basic management. Use has once again expanded production area of ??the branch the opportunity to adjust the production layout, the process moved to the first floor second floor coat, relieve excessive pressure building bearing the tension and the production area. Combined with new production layout to further improve the rules and regulations, strengthen the on-site management and civilized production, strict implementation of quality front-line workers required documents and procedures manual, a targeted solution to the production of the cards are prone to bumps, burns, residual magnetic quality problems, and achieved remarkable results.

Second, with higher value added products, adjust product structure, enhance the capacity for sustained development. To further meet the market requirements of small cone, according to the factory in recent years, the adjustment of product structure of the actual situation, the focus of further processed products turned-effective, high value, effective products, and continuously improve product quality in a large, new monthly increase in value of 20 million, the accumulation of the potential for enterprise development.

Third, the combination of enhanced equipment modification work to meet production needs. Adjustment of product structure for the factory process equipment processing capacity can not keep the status quo, the factory based on the existing, and tap the potential of existing equipment to improve, expand the processing range, while actively working with the company departments, coordinate branch , transferred to another factory to be modified after the use of idle equipment, greatly improved the factory s processing capacity.

Fourth, the combination of energy conservation, and further revitalize the stock funds, all the computer for all inventory materials management, so that clear accounts, inventory and reasonable to reduce the backlog and reduce the amount of funds used. At the same time do a good job of procurement, in accordance with the standards of the time to do, requiring procurement officers in-depth first-hand materials, the production line, the procurement of goods to be really needed for the production and purchase price in full accordance with company approval, take full responsibility for the procurement of goods. Branch to send someone to regularly check, strict checks to ensure that no Mr. Liu. Other material users who want to strictly enforce the trade and use, who is to receive, the principle of who is responsible to ensure the gradual reduction of production costs.

Fifth, with care about their employees live, to further improve the position of workers welfare facilities, and protective clothing to protect payment. Adjust the layout of the production process, to further improve the factory ventilation, re-painted on factory walls, maintenance of the wash basins, resurfacing the ground, and bathing difficult problem for workers, reform of the bath. Implementation through a series of effective measures to enhance the branch s cohesion and combat effectiveness of cadres and workers.

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Seven or eight percent of law

According to the Chinese floor trade associations relevant experts, the three-layer parquet made of high quality hardwood, the middle layer can improve the foot feeling the soft core material made of wood, so do the decorative surface of the foot feeling comfortable with the combination of more is valuable is that three solid wood flooring core layer and the bottom use the fast-growing wood, forest resources, sustainable development and other issues of great practical significance. In the bonding method, it is only two layer, and are environmentally friendly adhesive, the product environmental performance. In addition, the gap between the floor is the source of filth, but also bacteria, mold breeding ground, three-wood to wood composite material is a composite laminated bamboo and wood composite materials, it s full of bamboo material performance advantages when used for railway vehicle floor instead of the traditional bamboo and wood flooring. The material in the production line with the national forestry policies and national strategies for sustainable development, with good prospects for development.
Plate with lock link means, cubicles with close to a gap in the fundamental solution to the problem, you can create for consumers a healthy, environmentally friendly living environment.

"LOHAS," Mr. Wang and Ms. Zhang s unique living proposition, let us see, Broadwood idea came to China not long time, but has been accepted for many people, and become a lifestyle trends, their ideas in the consumer , more emphasis on lifestyle and other aspects of quality of life. In the European market, accounting for three-layer parquet, 76% of solid wood flooring market share, while sales in its domestic market is also growing steadily. Can be expected with the "LOHAS" in China s rapid rise, consumers in the fashion of home materials, and environmental protection requirements are rising, three-layer parquet in the domestic market will have a more broad prospects for development .

 

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excavator touch loose valve natural gas pipeline leak

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    Metropolis Daily News yesterday, Wuhan Economic and Technological Development Zone, a site, the excavator construction Chuang

moving gas valve caused leakage. Officers and fire personnel rushed to the repair of natural gas for risk.

    After the incident, the official Lake Avenue and East Jinghe Road intersection. Reporters rushed to the scene, there are three sites

where the soil about 40 cm in diameter valves, repair workers are around to fill.

    According to the roadside business description, 8:00 pm, an excavator construction, accidentally break the gas valve action, a

natural gas leak out. Few fire engines arrived after hearing the news, using water spray dilution to avoid knocking.

    Repair personnel, said excavator is just a touch loose valves, they close all valves, and soon ruled out the danger, the user does not

have an impact along the natural gas.

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analysis of casting the two major issues need to control

   Final shape casting liquid metal cooled mainly through the solidification of the casting process, if not master the casting process, the quality of outlet will lead to casting problems affecting the casting performance and life casting. Therefore, in casting manufacturing process need to pay attention to two aspects of control.

    (A) casting dimensional accuracy and surface roughness control

    The field of modern manufacturing, castings-36/">precision castings, and for increasingly high quality, near net shape casting technology can only provide rough casting changing the traditional concept, which aims to reduce material consumption, energy consumption, industrial consumption, and improve product internal and external quality, and cost-effective for the market. However, casting dimensional accuracy and surface roughness due to many factors and constraints, control is very difficult. Casting is the liquid formed, to achieve near-net shape technology has unique advantages in the structure and shape of the casting cavity formed by a casting method, making it closer to the ultimate shape of parts, the processing and assembly operations to a minimum; in dimensional accuracy and surface quality, the casting can be close to the final product requirements, so the yuan margin or small margin; the other hand, is beneficial to keep the surface of the casting to maintain the original cast of corrosion and fatigue resistance, superior performance, thereby enhancing the product life.

    (B) crystallization and solidification of the formation and control

    Liquid metal structure, formation of nuclei and growth, grain size, orientation and morphology of solidification and casting is closely related to their physical properties of castings and mechanical properties have a significant impact. Control of casting solidification purpose is to obtain the desired organization, want to control the solidification structure, it must be the formation mechanism of the formation process and a comprehensive understanding of factors and in-depth research. Currently the organization has established effective control methods are bad, birth, dynamic end product, solidification, rapid solidification and so on.

    In casting the production, control over two aspects of the problem, you can ensure the accuracy of the casting shape and size, to a certain extent can reduce the cost of expenses, for the market interest

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Address the application of single phase distribution transformers

The ongoing urban and rural power grids is the application of energy-saving products, energy-saving technological improvements grid structure, reducing the power supply line losses, improve voltage quality and improve reliability. From the current situation of urban and rural power grids, power points should adhere to in-depth load center, small-capacity, point clouds, short radius of the layout. In this context, single-phase distribution transformers due to small capacity, low loss, light weight, easy to load centers are deeply concerned.

In 2006 the national industrial enterprises in power-saving technology workshop meeting concluded that single-phase transformer, simple structure, small size, low loss, mainly iron loss is small, less suitable for load density low voltage distribution network in the application and promotion. Jiangsu Provincial Power Company five years to promote the single-phase transformer effect is obvious only on the cumulative use of Suzhou City, more than 1,000 units, saving 45GWh, the experience is worth promoting.

Some data show that single-phase transformers are widely used in developed countries, such as the United States, Japan, residents of single-phase power supply system as the main form, in this publicity, some people were single-phase power supply that has a \"drop loss \"of magic, that the single-phase transformer is more energy-efficient than the three-phase transformer, single phase power supply system is better than that three-phase power supply system is superior. In actual fact, single-phase transformer with single-phase three-phase power supply system is just the current system of supplementary form, due to the constraints of its own characteristics, it can only be applied to certain specific areas.

A single-phase transformer change is lower loss

Described in the previous single-phase transformer on single-phase power supply and technical papers in that single-phase transformer with capacity of more than three-phase transformer no-load loss, energy, and becomes low loss. The fact that the case?

I saw some papers cite examples of application, that has transformed the economic benefits of using D10, D11 or D12 series of transformers and transformer with capacity of S9 series compared, for example, that with the D11 single-phase transformer capacity three-phase transformer no-load losses than the S9 is much lower, so that the single-phase transformer to run more economical than the three-phase transformer, in fact, this is a misunderstanding. For example, when ignoring the technical level between the two differences, according to the JB/T3837-1996 \"Transformer Model based approach to\" the sequencing of the transformer model to do the required level of performance, where the larger size of the performance parameters be increased to a new level. For example, D10 series transformer transformer design parameters based on the S10, D10 or D11 series demonstrate the transformer to reduce the effect of loss, you should select the same model to compare the transformer S10 or S11, S9 series transformer as a reference point selected is not fair .

In addition, general S9 series transformer uses stacked-type core structure, while the D10, D11 and so most of the core structure with a volume: volume stack-mounted core and core process technology differences exist, the volume to overcome the core structure the traditional stacked core structure can not overcome the shortcomings, for example, in a laminated iron core, along the outer and inner magnetic circuit along the length difference between the larger, making the magnetic flux within the iron is not uniformly distributed, and produce high harmonics, resulting in increased wear and tear. In the three-phase core, the iron yoke and the intersection of column B-phase of the core region, due to three-phase magnetomotive force causes produce the rotating magnetic field increases the loss in the core laminated between docking at the seams, in this joint region, with a lateral flux leaving through the lamination of loss increases. Therefore, the volume than the stacked core transformer core transformer no-load loss, no-load current is small.

For fair comparison, this paper introduces the transformer parameters are used the online publication of Chint Electric Co. transformers transformer\\ s data, Table 1 for comparing different types of energy-saving effect, but also included in the S9 type transformer data. According to Table 1, we can see, the same type of 100kVA capacity of 11 volumes of three-phase transformer core sealed core transformer with single-phase volume in addition to significant differences in weight, the technical indicators of the difference is not obvious. So always think of the single-phase transformer loss becomes smaller than the three-phase transformer, energy-saving conclusion is unfounded.

2 single-phase power supply is low line losses

According to circuit theory, the same distance from the transmission the same power P, the power factor of 1, three-phase power supply with single phase power supply line losses are as follows.

Assuming the same cross-section of the wire, the wire resistance R.

Two-line single-phase power transformers, transmission power P, the phase line, neutral line current I, generated by a single line losses of P loss = 2I2R.

Three-phase four-wire three-phase power transformers, transmission power P, the line current in phase I / 3, the ideal state of neutral non-current, phase loss phase P = (I / 3) 2R = I2R / 9 .

The mode line loss for the three P loss = 3 × (I / 3) R = I2R / 3.

Seen by calculating the three-phase power supply line is the lowest loss, single-phase three-wire power supply system means the loss of more than six times higher. Thus, single-phase power supply with three-phase power supply to reduce line losses have an advantage.

3 single-phase transformer where the advantages of

Single-phase transformer has economic significance as follows: first, the same capacity than single-phase transformer by 20 three-phase transformer iron, copper by 10. In particular the use of roll core structure, the transformer load loss can be reduced more than 15, which will single-phase transformer manufacturing costs and decreased use of cost at the same time, to get the best life cycle cost. Second, the use of single-phase power supply system, which can save wire 33 to 63, according to the economic calculation of current density, the weight savings of 42 wires, calculated according to the mechanical strength can reduce wire consumption 66. Therefore, to reduce overall investment in the construction of transmission lines. This is China\\ s vast rural areas and towns and street lighting in residential electricity consumption is of great significance. Third, single-phase transformer as simple structure, suitable for modern mass production, will help improve product quality and efficiency. Fourth, for the introduction of new technologies, new materials, new processes, plus access to technology, the Plenum of the party proposed to resource conservation as a basic national policy, \"Eleventh Five-Year Plan\" the \"Outline\" to further the \"Eleventh Five-Year \"period, unit GDP energy consumption by 20 or so as a binding target. In this context, loss reduction and high added value of new products will be as big.

Line loss calculation can be found, the line loss in 80 of 20 trunk lines, thus shortening the distance low-voltage main lines, we can greatly reduce the low-voltage line loss, due to single-phase transformers, light weight, flexible use of pole mounted to facilitate in-depth load center, close to step-down power supply, improve the quality of power supply.

Generally single-phase power transformer in a small area, a small magnitude of the failure, which will help improve reliability. Also, because the single-phase transformers, light weight, convenient installation and maintenance, the use of flexible, single-phase, can also be composed of three-phase transformer used.

4 of the cost of small-capacity transformer

Light-load region the construction of single-phase power system can reduce construction investment. Large areas of single-phase load power system reform, there must be a greater financial investment.

I see that some single-phase transformer in the residential area of ??the pilot, the implementation of the large number of small transformer into the transformer, installed near the load, to shorten the distance low-voltage main lines, because the power to the load point is a certain distance, shorten the low pressure power distance, will have to extend the high-voltage transmission distance, such a transformation will require significant investment, such as the original three units 30 families with a three-phase transformer 160kVA units, use three 50kVA single-phase transformer, Table 2 lists the two kinds of materials and loss transformation program changes, it is a significant increase in the construction investment. First, in order to reduce low-voltage main trunk line losses, load center to the introduction of high-voltage lines, to increase investment in the construction of high voltage lines. Second, using multiple small-capacity transformer no-load loss and load after the loss, than the original more than a single large-capacity transformer. Third, multiple small-capacity transformer funds the purchase of a single large-capacity transformer is greater than the purchase money.

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Fuse from the fuse to see transformer fault

Fuse from the fuse to see transformer fault

How to fuse the situation to determine the transformer fuse failure, several methods are presented.

According to the transformer high side fuse blown the situation to determine. One is the same two high-voltage fuse fuse. This situation is generally judged to be within the transformer winding phase short circuit. If the transformer low voltage side of the fuse assembly according to the specified value, the fuse value is greater than the transformer rating, the low-voltage short circuit can cause the phenomenon. One is a high-voltage fuse fuse. This situation is generally judged to be within the transformer winding grounded. When no voltage fuse assembly according to the specified value, the fuse value is greater than the transformer rating, it will also cause this phenomenon.

According to the transformer low-voltage side of the fuse blown the situation to determine. If the fuse all the whole pillow melting away, can be judged to be relatively low pressure side of the line relative to the zero-phase or short-circuit caused by the insurance office and not far from the point of failure. If the fuse blows the middle to form a narrow gap, could be judged to be blown overload. If the fuse blows the formation of the root gap, can be judged to be installed is not tight, the fuse (piece) and the fuse caused by poor contact.

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cargo trucks burn up into the tunnel behind the car horn warning fierce

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Yesterday afternoon, a truck traveling from north to south through the economy in Baixia tunnel car door suddenly ignite the cargo,

the owner of the car quickly with two fire extinguishers on board fire fighting and mineral water. Tunnels found from the monitor after

a fire, and immediately call the police. Traffic police rushed to the tunnel will be closed until all the fire trucks go out to open the

tunnel, closed after nearly 20 minutes. Firefighters found in the inspection, the truck cargo is likely to be spontaneous ignition was

littered cigarette butts carton packaged goods. Currently the traffic police of the Second Battalion is under further investigation.

Yesterday 13:10 or so, drivers traveling north to south king master driving a truck to the door of Tongji tunnel, had followed him to

the overtaking of a private car in front of him, but kept to his horn. The private owners of such a press, the king master of goods only

to find his car burned up, he quickly stopped the car. Chef Wang used car spare two fire extinguishers and bottles of mineral water will

be a few boxes of goods on the spontaneous combustion of the fire extinguished.

Economic management of the tunnel through the side door from the road monitoring found that there are burning up the goods on

trucks, and quickly call the police, traffic police and notify the fire came. Traffic police rushed to the scene immediately after the tunnel

closed, firefighters followed them into the tunnel, the goods will be lit on fire trucks all extinguished. Then truck left the tunnel, the

tunnel re-opened, the whole process before and after the closure of the tunnel for nearly 20 minutes. Firefighters in the truck to

check on the spontaneous combustion of goods found, the truck s cargo is not spontaneous, but human-induced, it is estimated that

someone littered cigarette butts ignited a carton. The Master said truck driver Wang, thanks to the back of his car with the private

owners of honk to remind, only to discover his goods on fire, the fire under control, only burned three boxes of goods, the other 40

boxes intact. Currently the traffic police of the Second Battalion is under further investigation.

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