News
Carbon / carbon composite material are high temperature friction materials of excellent performance, as the brake materials have been successfully applied in aviation industry. But the friction and wear properties of carbon / carbon composite material strongly depends on the experimental conditions and preparation process. Compared with other friction materials, carbon / carbon composite materials with low density, high temperature resistant, high strength, thermal shock resistance, corrosion resistance, good vibration resistance and suitable friction coefficient and friction performance, is a comprehensive performance excellent high temperature friction material. Carbon / carbon composite material have become the preferred materials for aircraft brake discs. In France, for the civil aviation flying Airbus Company the machine brake system has been completely replaced by carbon…
Carbon brick is with carbon as raw material, adding high temperature resistant binder amount of neutral refractory products. raw material Carbon brick raw materials including anthracite, coke and graphite, and asphalt, tar and anthracene oil binder. Anthracite volatile small, compact structure, production of carbon brick multi to it as aggregate, join the metallurgical coke (coke), to pitch as binder. Production process The production process of carbon brick is similar to that of other refractory bricks, but it must be prevented from oxidation at high temperature. Under the reducing atmosphere. Anthracite before use to first roasting, to exclude volatile, sulfur content, moisture and improve anthracite volume stability, mechanical strength and oxidation resistance. The coke should be dried first, so as not…
Why do we use graphite manufacturing bearing? 1).Considering from the perspective of the friction loss, the graphite has excellent friction coefficient because the friction coefficient of bearing material is as small as possible. 2).For the structure, graphite is a solid material, it is oil-free lubrication , it reduce the oil lubrication system so as to reduce the failure rate; 3).The graphite has high chemical stability; 4).The cheap price and strong versatility,the ordinary metal material for bearing is undesirable apparently if it is operated at high temperatures, the graphite material which has the high temperature resistance and more cheap price than the custom-made high temperature strength materials is available. The manufacturing method of general graphite bearing can be achieved by the…
