MC nylon, also known as cast nylon, is a kind of melt raw material caprolactam monomer c6h11no, which is used as catalyst under normal pressure. It is made into the monomer to be polymerized together with activator and other auxiliary agents. It is directly injected into the mold which is preheated to a certain temperature, so that the material can polymerize quickly in the mold, condense into a tough solid embryo, and then through the relevant process treatment, get the predetermined Products. MC nylon products, as one of the engineering plastics, are widely used because of their “excellent performance, replacing steel with plastics”。 It has many unique properties such as light weight, high strength, self lubrication, wear resistance, corrosion protection, insulation, etc.
　　
　　（1） high strength, able to bear load for a long time;
　　
　　（2） good resilience, able to bend without deformation, keep toughness and resist repeated impact;
　　
　　（3） wear resistance and self-lubricating, which provides better performance than bronze cast iron carbon steel and phenolic laminate in oil-free （or deoiling） lubrication application, reduces consumption and saves energy;
　　
　　（4） absorbing noise and damping, MC nylon modulus is much smaller than that of metal, and the attenuation of vibration is larger, which provides a practical way to prevent noise better than metal;
　　
　　（5） compared with metal, MC nylon has low hardness and does not damage the wear parts.
　　
　　MC nylon, polymerized into cast nylon blank, processed into finished products by lathe, milling machine, and plutonium machine. It is a high-tech product that has been widely used in the world in recent years. It is a kind of high polymer. Good mechanical properties MC nylon products have large mechanical strength, good toughness, impact resistance, fatigue resistance, especially good creep resistance, so they can bear the heavy load of bearings for a long time; good resilience MC nylon products can make the bending surface not to have permanent deformation, so as to maintain the strength and toughness, to resist the fracture caused by repeated impact load. This is an ideal material for products with high impact load