species called the PCB laminates, reinforced fabrics.Thermosetting synthetic resins play the role of a member.And it is not so important, what is considered PCB.What is it, fairly easy to understand, even by description
Some parameters and properties
Depending on what nature has fiber textolites divided into several groups.
- Bazaltotekstolity on the basis of basalt fibers.
- Uglerodotekstolity carbon.
- asbotekstolitov with asbestos fibers.Fiberglass
- of glass fibers of different types.
- Organotekstolity artificial and synthetic fibers.
- textolites Actually, the fibers are cotton
There are other varieties.Twill, satin, plain - weave types, which differ in the filaments themselves.May be different surface density, thickness, number of threads per unit length in the warp direction and weft fabric structure and yarn thickness or harness.There is a special technology that is prepared PCB.What is it, we have already found.
If interlayer strength to be particularly high, use a multi-layer tissue type.Sometimes there are products, wherein the fibers are made of several kinds of materials.
What else to pay attention?
matters as production technology, quantity and properties of the binder, the characteristics of the very fabric of nature fibers - parameters that define what qualities will have the PCB itself.As for the production process itself, it appears basis layered winding or laying out fabric on the mandrel when the product is applied to form a binder.PCB foil is produced in the same manner.Further there is a molding.In addition, the textolite plate, plates or sheets must undergo machining.
diversity in the composition can be not only the fabric but also the connecting elements, which act as a filler for impregnation.Thermosetting synthetic resins often fulfill this role, foil PCB - is no exception.
On the merits, and other parameters
There are many qualities of such material as PCB.What is it easily understood from the description of its characteristics.
- Operating temperature range - from -40 to + 105 degrees if the current frequency of about 50 Hz, the relative humidity is maintained.
- Textolite - a good insulator, so that it becomes an indispensable tool in the power and energy industry.
- Easy machining.
- High strength.
- low density.
- low coefficient of friction.
Additional information
Textolite sheets used in many spheres of life.It can be structural, anti-friction, friction, electrical insulation, thermal insulation and radio material.
In many ways, this contributes to the ability to easily transfer the mechanical loads, even quite serious.So it is particularly widely used in the electrical industry it engineering.On the basis of the various parts of the PCB manufactured with structural purpose.
Applications and opportunities
For the production of rings, sliding bearings, bushings used ornamental PCB.What is it can be understood even without special dictionaries.The depreciation panels and strips can also be seen this stuff.
The gearboxes in the distribution mechanism of different engines, gearboxes often noticeable presence of conical and cylindrical gear on the basis of a material such as PCB.The price is different.The elements of centrifugal pumps, ball mills, turbines are the textolite bearings.PCB can successfully replace getinaks as a material for the production of electrical components.Grounds for PCBs of PCB do in electronics.In addition, in today's tournament it is PCB becomes the basis for the production of weapons - is its application quite unexpectedly.
little about stamps
There are a variety of PCB, which is called asboplastikom and recovered separately.This flame-resistant and durable material that can withstand heat up to 250 degrees.Different chemical resistance, corrosion resistance and electrical insulation properties.Type of binder and filler largely determines what features it will have a particular product.For example, a high acid resistance of the materials give anthophyllite asbestos.The method of production and the degree of filling can also exert its influence on the existing settings.In each case, everything is determined individually, behind this track separately.
