The technical plates rubber autoclave TMCs MBS

MBS and TMCs- (P). - the General name of a group of materials obtained vulcanized rubber. Technical R. - the product of vulcanization of rubber plates , containing from 5-6 to 15-20 different ingredients that facilitate the processing of rubber and gives the product the desired performance properties. The most important ingredients such as vulcanizing agents (mostly sulfur), accelerators and vulcanization activators, fillers, plasticizers, stabilizers, colorants and so forth. The fillers used mainly various finely dispersed substances, such as carbon black (soot), kaolin, talc, silica, as well as fabrics, corduroy, based on synthetic or metallic fibers. Feature R. - their high elasticity in a wide temperature range. With the exception of the ebonite (hard R.) products, which is obtained by vulcanization of rubbers large quantities of sulphur (up to 50%).
R. has a number of valuable properties, leading to their widespread use in aircraft construction: shock-absorbing and sealing ability, wear resistance, fatigue endurance, electrical insulating properties, gas - and water-resistant, R. some, in addition, the resistance under the action of liquid fuels, oils, various aggressive media (acids, alkalis, etc.). The ebonite are characterized by high chemical resistance and durability when operating in extreme environmental conditions (for example, when exposed to the tropical climate), high mechanical strength, electrical insulating properties.
The majority of rubber products produced from solid rubber, some (for example, the foam - latex. Aircraft rubber products are manufactured in a single technology scheme, consisting of four main stages:
1) the mixture of rubber in a rubber mixer or mill with the necessary ingredients;
2) preparation of semi - calenders, sheets, extruded profiles;
3) the manufacture or Assembly of workpieces;
4) vulcanization products and their finish. Billet rubber vulcanized in molds mounted on the press, autoclaves, etc., to a temperature of 140-200(°)and 1.5-2 MPa.
Rubber products are divided into moulded and non-moulded. Forming blanks and first vulcanization are carried out simultaneously, the second - separately. Mold products have a well defined shape and size, clean and smooth surface; it is the rubber sealing rings, gaskets, shock absorbers, gaskets, rubber bearings and the block hinges, rubber-fabric cuff, membranes, diaphragms. To the appearance, shape and dimensional accuracy non-products do not have high demands; they are cut out or cut down, of vulcanized plate (e.g. strips), cut from tubular blanks (for example, o-rings), stick together from individual elements (for example, of rubber articles of complex shape), profile extruders (for example, sealing Windows and doors of airplanes and helicopters), followed by vulcanization in steam boilers or air autoclaves. To non-molded rubber products also include soft fuel tanks for transportation and storage of aviation fuel. Tanks usually consist of two layers - the inner teplostojkogo from R. and external reinforcement made of rubberized fabric; made on special forms by successively superimposing and bonding layers and subsequent vulcanization.