Monthly Archives: June 2013

Company News

The professional insulation material online store from China

On May 26, 2013, Suzhou Dexlu Material & Tech Co.,Ltd has launched the online business of insulation material, this online shop is the first online store of insulation material from China, mainly sell the insulation adhesive tape, insulation film, voice coil related material. It is very easy to order from this online store, you just need sign in the store and choose the the product with the size and quantity, add them to your shopping cart and check out. The system will calculate the best price with discount you will have. Also, we support the freight quotation on your order if your order weight will exceed 21kg.

This store now mainly sells the good including the insulation tape like Kapton adhesive tape, Mylar adhesive tape, ESD tape, polyimide film(HN type), polyimide FEP film(FN type), high temp. print labels, voice coil related material like KSV, TSV, KrLock etc. We will add more goods on the online store in future.

Why we need to launch the online business store? Frankly speaking, this online store is specially for the customer that not has too much quantity, they can order on the store more conveniently and fast. The normal business need the manual quotation, that is not convenient for this customers, this is all self service.

Suzhou Dexlu Material & Tech Co.,Ltd will make further convenient shopping experience, we hope to hear more suggestions from you.

Insulation Related

American Institute of Electrical and Electronics Engineers (IEEE)

IEEE, be combined on January 1, 1963 by the AIEE (American Institute of Electrical Engineers) and the IRE (Institute of Radio Engineers U.S.) is the largest U.S. professional societies. IEEE is a non-profit Institute of Technology, has nearly 175 countries, more than 360,000 members all over the world. Through multiple members, this organization is in a position of authority in the field of space, computers, telecommunications, biomedicine, electric power and consumer electronics products. In the field of electrical and electronic engineering, computer and control technology, IEEE published literature about 30% of the world. IEEE sponsored or co-organized every year more than 300 technical sessions.

Since its beginning of foundation, IEEE has been committed to promoting the theoretical aspects of electrical technology in the development and application progress. As a catalyst for technological innovation, IEEE supports its members’ needs by planning and service in extensive field. Promoting science and technology and information exchange on technical areas from the computer engineering, biomedical, communications to electric power, aerospace, consumer electronics and so on, education training, development and recommendation of electrical, electronic technical standards, rewards membership with scientific and technological achievements.

Institute is leaded by the Chairman and the Executive Committee jointly. The council and congress make decisions on important matters of institute and the executive committee is responsible for daily affairs. Institute consists of superconducting, intelligent transportation system, neural networks and sensor 4 sub committees and 38 professional societies, such as power engineering, aerospace and electronic systems, computers, communications, broadcasting, circuits and systems, control systems, electronic devices, electromagnetic compatibility, industrial electronics, credit systems theory, project management, Microwave Theory and Techniques, nuclear and plasma ion science, marine engineering, power electronics, and electrical insulating dielectric reliability. Institute is also divided to 10 regions, and a total of more than 300 local branches. Congress is consisted of representatives from 10 regional braches and 10 technical braches. IEEE Beijing Branch was established in 1985.

IEEE members can enjoy the following preferential: members communicate with each other, sharing information; exclusive special cost savings and value-added benefits; recognizing and giving awards to members’ technical and professional achievements; participate, lead or voluntary assist IEEE opportunities; make e-commerce through network services and IEEE.

IEEE Standards include electrical and electronic equipment, test methods, components, symbols, definitions and test methods.

Insulation Material

What is insulating paint?

Insulation used paint (or insulating paint) is electrically insulating paint for short. Modern insulating paint is a liquid resin system contain solvent or not, the main role of the insulating paint is insulation, so a higher requirement on its dielectric properties is needed.

The basic composition of the insulating paint are binder, solvents and diluents and auxiliary materials.

Generally, binder is made up of oil, resins and desiccant. Binder is an essential component of the paint.

Most binder of early paint contains oil, so called oil paint. Now, a lot of paint contains no oil, oil paint is only part of all.

Auxiliary materials including desiccant pigments, plasticizers or emulsifiers. Adding binder, flexible material and plasticizers to increase the softness of the film; adding emulsifier to produce latex paints; adding polymerization inhibitor to extend the storage period of paint; also add pigment to lacker.

Solvents and diluents are generally inert, i.e. evaporated when film drying, not participate in reaction. If participate in reaction, it is called “reactive diluents”, this paint is called “solvent-free paint.” Desiccant is not necessary in some resin varnish.

Insulating paint afford electrical components electrical, mechanical and environmental protection.

Insulation Material

Brief of Electricl Insulatin Material

What is insulation material? Today we are talking only electrical insulation Material.

In China,according to the defination of China GB standard(GB 2900.5), insulation material is material which used to keeping the electrical parts insulative from the power. That means the material is used to prevent electric current pass the electrical parts. Usually this kind of material has very high electrcial resistance about 10^6~10^19Ω•m. For example, the insulation material can prevent the loops on the rotor from the slot that it can make the motor working safely.

Simply we say, we use the insulation material to compart the electriferous part from the non-electriferous part or another electriferous part to making the electric current follow the people’s willing and work.

Insulation Knowledge

Is insulation material importane in the modern insustry?

Is insulation material importane in the modern insustry?

If fact, insulation material is the necessary in the modern industrial product. For example, we will use about 10 tone of insulation lacquer, 8 tones of mica product, 5 tone of insulation laminated sheets and 1 tones of varnished glass cloth and film on a 300MW turbogenerator; the electrcial insulation material will take the 34% of the total weight in one 3200kW transformer and 18% of the total weight of one 10kV high voltage switch. According to the capacity generator and its accessories in China, the everage wastage of insulation material is about 65 tones per 10MW, so we can say, insulation material has taking a very big proportions in the electrical equipments.

There will be conductive material, magnet material, insulation material and structure material in most of motors and other electrical equipments. Beside the insulation material, most of the other material is metal. Durring the runing period of the equipments, the insulation material is special effected by temperature, eletricity, strength caused by shaking, bad gas, chemical material, wet, dust and radiation than other material in the equipment. Esay to say, the electrical insulation material is more easy to be aging and damaged that will cause the broken of the total equipment. So the insulation material is the key material that can guarantee the equipment working steady. It will decide the working life the motors and electrical equipments.

Insulation Knowledge

How about the class defination of insulation materials?

How about the class defination of electrical insulation materials?
The use life of electrical insulation products is affected by many factors, the temperature usually is the aging of insulation materials and dominant factor. Therefore, there is a practical, by the world recognized heat-resistant classification method, which is the electrical insulation of the heat resistance was divided into a number of heat-resistant class. According to China standard of GB 11021-89 (IEC 85), and all heat levels and the corresponding temperature values are as following:

Insulatio Class Temp()
Y 90
A 105
E 120
B 130
F 155
H 180
C 200

If the temperature is above 250℃, the class defination shall set according to the corresponding interval of per 25℃.
As is customary the reason, now both insulating materials, insulation structures and electrical products are generally use “Thermal Resistance Class”. But from now on insulating materials will use “Temperature Index” and “Relative Temperature Index” to define the class while insulation structures and electrical products will keep to use “Thermal Resistance Class”.
To indicate the thermal resistance class of one electrical products does not mean each insulation material in this electrical product have the same insulating material temperature limitation.