Some Basic Knowledge about Film Capacitor

The introduction of the metallized film capacitor

The films used in the metallized film capacitor are polyethylene ethyl acrylate, polypropylene, polycarbonate, etc., in addition, there are also the wound-type and the stacked type. This type of metalized film capacitors of film capacitor manufacturers has the role of the so-called Self Healing Action, which assumes a tiny part of the fragile quality of electricity sector and cause a short circuit, caused by a short circuit around the electrode metal part of the electrode, or short-circuit current due to the electrostatic energy of the capacitor brought, and lead to the dissolution of the larger area integration evaporated to recover the insulation, make the capacitor again return to the role of the capacitor.



The features of metallized film capacitor

Metallized film capacitor that is taking the surface of the polyester film of the vapor-deposited layer of metal film as the electrode to take the place of the metal foil, because the thickness of the metal film layer is much thinner than the thickness of the metal foil, the wound volume is much smaller than the metal foil capacitance. The biggest advantage of metalized film capacitors is a "self-healing". The so-called self-healing property is if the thin film dielectric shows the phenomenon of short-circuit breakdown because the defects are in the presence of some points, and the condition of over-voltage, and the breakdown point metal layer may be in the arc under the action of an instant melting evaporated forming a small non-metallic area , the capacitance of the two pole pieces are re-insulated from each other and can continue to work, thus greatly improving the reliability of the work of the plastic film capacitor. Analysis from the above principle, metalized film capacitors should not have the short-circuit failure mode, while there will be a lot of short-circuit failure phenomenon in the metal foil capacitor.

The disadvantages of the metal film capacitor

Although the metal film capacitors have the great advantages as described above, but compared with the metal foil capacitor, there are the following two disadvantages: First, the capacity stability is poorer than a foil type capacitor, which is because in the long working conditions, the metallized capacitor is prone to capacity loss and the capacity will be reduced after healing, therefore, the metal foil capacitor should be better used in an oscillation circuit with the higher demanding in capacity stability. Another major drawback is the large current capacity is poor, which is because the metalized film layer is much thinner than the metal foils, and the ability to carry large currents is weaker. To improve this shortcoming of the metallized film capacitors, metalized film capacitors in high-current products in the manufacturing process has been improved, and the major improvement ways are: first, take the use of the double-sided metallized film as the electrode; second, increase the thickness of the metallization layer; third, the end face of the metal welding process improvements to reduce the contact resistance.

For film capacitors, www.film-capacitor.nets dielectric materials are polyester film, polypropylene film and the dielectrod is envaporated metal layer or Aluminum foil or Zine-Aluminum foil. And the construction is wound or stacked.

This article is come from:http://www.chinaphoneparts.com/index.php/some-basic-knowledge-about-film-capacitor.htm

Method to Develop the Film Capacitor Industry

Analysis of the current capacitor industry

With the shortening of electronic machine replacement cycle, the demands for compact size and digitization are increasing, and currently, the momentum of development of the organic thin film capacitors chip is strong, and there is a general trend to gradually replace the traditional lead film capacitors.

If capacitor manufacturers want to shorten the distance between the international market and domestic capacitors enterprise, we should focus on the following issue:
First, focus on the research and development of key film capacitors.

Second, pay attention to the technological innovation, patent declaration and the trademark protection work.

Third, strengthen information research, and improve the level of information, in order to provide strategic ideas for technology research and development, market development, and economic development in a timely manner.

Fourth, attention should be paid to the implementation of brand strategy, strive to create a well-known international brand, and strive to improve enterprise comprehensive strength and level.

Fifth, promote the research and production of film capacitors. The development of the domestic chip film capacitors is in its infancy, and there is the trend to gradually expand the market share and take the place of the traditional lead plastic film capacitor. Who takes the first action, and who will be able to seize market opportunities.

Sixth, use various means to make the enterprises bigger and stronger. The domestic film capacitors enterprises can learn from foreign experience and the enterprises with strong strength can make the independent research and development to the raw materials and the electronic machine, and to form combination electronic materials and electronic machine manufacturers. And we can expand enterprise scale and improve the ability to resist risks in the international market competition through a variety of ways of mergers, acquisitions and coming to the market both at home and abroad.

Seventh, establish its own technological innovation and product research and development system, to enter the field of high-tech and high-tech products, and gradually form their own core competitiveness.

Eighth, create a marketing team at the top level.

Ninth, pay close attention to the international market dynamic and establish sensitive and efficient early warning mechanism.

There is no doubt that the prospect of film capacitors is promising, so we have to make efforts to research and study on the advanced technology and means to reduce the cost of the raw materials to take more share in the market.


For film capacitors,  www.film-capacitor.net's dielectric materials are polyester film, polypropylene film and the dielectrod is envaporated metal layer or Aluminum foil or Zine-Aluminum foil.  And the construction is wound or stacked.

This article is come from:http://www.chinaphoneparts.com/index.php/method-to-develop-the-film-capacitor-industry.htm

The Importance of RFID Tags for Laundry

RFID for Industrial Laundries

Industrial laundries recognized the benefits of using RFID to manage large scale laundry operations many years ago. Commercial laundries process thousands of pieces each hour for multiple customers. It is estimated that there are more than 400 million uniforms and other garments that are rented in North America and Europe. 20% of workers wear rented uniforms and this number is growing by 15% annually. All these uniforms need cleaning. All these cleaned uniforms have to be returned to the right customer.



The Beginning of RFID for Laundry

When the industrial laundries began using RFID the only suitable and available technology was HF (13.56 MHz) RFID. Laundry operators created portals. An RFID portal is a read station made up of an RFID reader with an array of antennas. The RFID tags are usually sewn into the garment. To manage the flow of all uniforms and garments through a laundry facility every rfid laundry tag is read as each item passed through the different stages of the operation. Typically read stations would be located in receiving, sorting, cleaning and washing, drying, ironing, folding, sorting, shipping and delivery. The tags must withstand the chemicals used in the washing and cleaning process. The tags must also withstand the washing, drying and ironing temperatures and the tags must outlast the life of the garment.

UHF RFID is introduced for Laundry Security in Hotels

A new RFID standard was approved in December 2004: EPC Gen 2. The new standard has resulted in changes in RFID capabilities and price. The Gen 2 RFID tags cost less than HF tags and the read range of the tags has increased from what were centimeters to meters or inches to yards. Most new laundry implementations are taking advantage of this recent development in RFID technology. Hotel linen includes hand towels, sheets, pillow and many other items. Some hotel guests are involved in taking up one or two of them back to their home. To some, theft of hotel towels is more pastime than petty crime. Hotels, on the other hand, apparently take it more seriously. UHF RFID laundry tags can be sewn directly into towels, bathrobes or sheets, and can report whenever an item leaves a hotel's premises. The uhf rfid tag when read by strategically placed RFID readers can set off an alarm, usually silent, that will instantly alert the staff that a hotel item has ‘grown legs’.

www.great-card.com. Shenzhen Chuangxin jia smart card co., Ltd was specialized in producing and marketing of pvc card and smart card.

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The Prospect of Smart Card Industry

The smart card is different from the memory card, it is CPU card and there is chip inside the CPU, so the encryption arithmetic can be carried out inside the card with a higher security. Such as smart cards refueling system takes a contact smart card as the core and takes the computer network as the backbone, to deliver a variety of information among the data management centers, gas stations and oil storage point quickly and timely, and improve operational efficiency and management level of the oil companies and gas stations.

Why the smart card application is so broad? Compared with traditional magnetic stripe cards and optical cards, the smart card has many advantages: first, good anti-destruction and long service life cards. If it has no the man-made damage, its shelf life can be up to 100 years or more; second, Anti-interference, as long as the chip surface is kept clean, its ability of waterproof, anti-magnetic and anti-static is stronger than the magnetic cards and optical cards; third, excellent security features, magnetic cards and optical cards are easily forged, while the smart card itself has a very strong encryption capabilities, has also taken a very strict anti-decryption means; fourth, high card storage capacity, which can be up to a few thousand bytes; fifth, the low dependence on the network, the smart card can own amount, and the all operations are done independently by the terminal, with less demanding on the network.
With the diversification and the continuing expansion of the field of smart card applications, the high-capacity, high-performance and multi-function of smart cards will be fully reflected. smart card manufacturer hope that a multi-purpose card, a card used in all over the world believe will become a reality.

The size of the smart card market

The smart card has been widely used in the banking, telecommunications, transportation, and public safety in all areas of society, which has obtained rapid development. In 2012, the sale of domestic smart card market was nearly 1.98 billion, a year-on-year growth of 26.8%; and the sales reach $ 53.7 billion, a year-on-year growth of 15.3%. The reason why the smart card market sales obtain a sharp growth is: first, the growth of mobile communications card market stimulates the growth of the overall market; second, the rapid market development of city card, residence permit, social security card, and other areas also contributed to the growth of the overall market.

The characteristics of market

The traditional areas still affects the development of the market, as the largest mobile communications card market in the application field and the fast-growing Asia-Pacific market achieve the sales growth. in addition, the field of financial services in the global EMV migration driven to achieve more than 10% growth. In the field of identification, the implementation of global electronic passport and the residence permit system ensure the growth in the field of space. Overall, the traditional smart card applications still affect the development of the global smart card market.

www.great-card.com cooperates with American company Vein and established RFID R&D department which researching in chips and application of RFID. Now this team owns 30 members, offering management application project, equipment application scheme and personalized  RFID end product.

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Why You Choose Led Tube Light?

Traditional neon tubes, are also called phosphorescent lamps, which may be frequently found in many family members. Nonetheless, they have a bad influence on the planet owing to your metal containment "Mecury". So the traditional neon tubes will be substituted with a fresh sorts of tubes---LED tube. LED light tube make use of a light-emitting diode because a light resource, the actual light-efficient, much more energy-efficient, longer life, plus much more environmentally friendly. LED tube and also traditional luminescent tubes will be in common in dimensions, condition and Caliber. LED T5 tube, LED T8 tube and also LED T10 tube will be the usual varieties. The nation's duration of 0.6m, 0.9m,1.2m,1.5m,2.4m.



Advantages of Led Tube Light

1. Environmentally friendly The particular traditional fluorescent dimmable led tube consist of a large amount of mercury steam. Broken mercury watery vapor can escape in to the atmosphere, leading to air pollution. LED lamp won't make use of mercury, as well as LED merchandise tend not to consist of direct and also other harmful ingredients, the actual shell also happens to be reused to make use of, simply no detrimental outcomes on the atmosphere. Your LED lamps are regarded environmentally friendly lighting in the twenty-first hundred years.

2. No noise LED tubes don't develop noise, which is a good choice to the situation making use of accuracy digital instruments. Suitable for a library, places of work and stuff like that situations.

3. Protect your eyes Traditional fluorescent lights utilize AC 100-120 instances every second strobe. T8 led tube use continual present the actual primary alteration associated with Hvac to Power energy, properly lowering LED rot and it is launch, no glint, vision defense.

www.ervan.cn. is a professional LED tube manufacturer located in Shenzhen, China. ERVAN is our trade mark. Our Company was founded in 2002 and started Researching and Developing LED tubes since 2005. Now, our tubes are upgraded to the top level in the world, and we are one of the top 10 LED Tube manufacturers. We set up on the firm belief of offering the high quality, unique design and fully warranted LED tubes to our customer at the most competitive price.

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Development of LED application-driven start

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RFID Tags will No Longer be Expensive

RFID standard is forthcoming

RFID as a key technology of the Internet, the concept to encode every grain of sand has been nearly 10 years. However, when the domestic industry is reaching maturity, RFID GB has been slow to keep pace. The reporter learned from the seventh China radio frequency identification technology development international seminar held in Shanghai that the domestic RFID standard is forthcoming.

RFID GB is expected to be introduced within 2 or 3 months

In fact, the news about RFID GB introductions was on newspapers as early as in 2004, followed by numerous reports about the message of "Dystocia". Would the introduction of GB be a "wolf coming"? In this regard, Jijing Qiu, the Secretary General of the China RFID Industry Technology Innovation Alliance told the reporter that RFID GB is expected to be introduced within 2 or 3 months, mainly carry out unified standardization on some basic standard data format, communication protocol and basic safety system. Currently, after RFID technology entering into applications, a number of application standards can also by developed by the industry, such as dangerous goods logistics tracking and electronic tickets, which already have normative application standard.

China must establish our own RFID standards

At present, the world has multiple RFID international standards, whether there is a need to have our own standards? Ji Jingqiu thinks that RFID technology and industry in China already have a certain level and scale, the benefits of RFID card are directly related to the volume of information and applications that are programmed for use on a card, so we must establish our own standards. In addition, taking information security into account, the use of someone else's standards is equal to allow others to "read" our own items, and pay for others.

China RFID production can meet future market applications

The current promotion of RFID applications is in the face of the standards, cost, business model, security hot issues, and the cost is considered to be a "stumbling block" of RFID promotion. Ji Jingqiu said that domestic RFID industry chain develops very fast, each label can already do 0.4 RMB, and we can produce 6 billion labels each year, to meet future market applications.

www.great-card.com is a high technology enterprise which engages in researching as well as producing and marketing of system project, application equipment and end product. We cooperate with American company Vein and established RFID R&D department which researching in chips and application of RFID. If you are interested, please feel free to contact us!

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Classification of PVC Cards

First, screen printing PVC card

PVC card taking use of screen printing is the most common printing method, the operation is more complex in the traditional process, but investment is less in equipment. It has the widest range of applications, which accounts for a large proportion of PVC card. The screen printing cards are mainly used to make gold and silver card. It is only applicable to the large volume production of a simple card and the signature strip on the back of the card as well as printing, such as simple text and graphics, while it cannot be printed the high-quality color pattern.

Second, color offset printing PVC card

At present, color offset printing PVC card is the card type which is the most widely used. It generally uses four-color printing presses to print with UV offset ink. The finished is colorful with good clarity, high quality and it is suitable for high-volume printing. The most widely used presses are Japan AR010 series, if the printing volume is not large, we can also choose the appropriate domestic small business card presses to print.

Third, stamping gold and silver PVC card

Stamping gold and silver card is to use a dedicated bronzing machine to stamp text and graphics on the surface of the PVC card to form the PVC card with high metallic luster. Usually, it is used for VIP cards, discount cards, VIP membership card and so on. If you make a semi-finished blank PVC gold and silver card, it can be produced just by a bronzing machine. It does not require laminating machines, equipment investment is the least and it is affordable.

Fourth, color portrait PVC card

Color portrait card is a personalized card, and the surface of each card is recorded with different information and content, which card accounts for a large proportion in PVC card. There are two ways to produce PVC color portrait card: one is to use thermal transfer card printer to print directly on the surface of the blank card, while the costs are higher; the other is to use a color inkjet or laser printer to print special PVC film base, together with the traditional hot (Laminating machine) method. And it can produce the finished product after hot pressing and punch, the production cost is very low, and it is currently the most popular on the market, which is commonly used to produce a work permit, appointment cards, ticket, badges and other kinds of personalized cards.

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