River casting heat-resistant castings / gray cast iron castings Botou River Foundry is mainly engaged in the heat-resistant cast iron, ductile iron, gray iron castings, Confucianism and cast iron, steel castings, high silicon ductile iron, high chromium Botou River cast iron castings and other main products are sintered trolley, grate, stopped plates, cooling bed with straightening plates, skirts, ingot mold, column pipe, cast chassis, ductile iron slag slag pot, coking equipment, machine tools For more information please contact us castings. Restriction heat-resistant castings reasonable shape may be provided in an ideal position Riser, without typing, modulus and other traditional factors, reducing the internal defect of a cast, so that similar positive and negative T-traditional casting methods can not be produced tank and other components, can be directly casting, greatly reduce production costs, and close to the precision casting precision casting; organization and mechanical properties of heat-resistant graphite casting and matrix morphology related. Heat-resistant castings flake graphite matrix serious split in graphite could easily lead to stress concentration at sharp corners, so that the tensile strength of gray cast iron, ductility and toughness is much lower than steel, but rather the compressive strength and steel, but also the mechanical properties of the worst cast iron castings in common. Meanwhile, the matrix structure but also on the gray cast iron mechanical properties of some influence, ferrite matrix of gray cast iron graphite sheets thick, the strength and hardness of the lowest, it is seldom used; pearlite matrix of gray cast iron graphite sheet tiny, a higher strength and hardness, is mainly used to manufacture castings more important; a ferrite pearlite gray iron matrix graphite sheet thicker than the pearlitic gray cast big performance as pearlite gray iron castings box, heat-resistant cast iron plate. So many in the industry are using a gray cast iron pearlite matrix. More carbon in cast iron with graphite forms, sometimes with cementite forms exist. In addition to carbon, iron also contains 1% to 3% silicon, and manganese, phosphorus, sulfur and other elements. Alloy cast iron also contains nickel, chromium, molybdenum, aluminum, copper, boron, vanadium and other elements. Carbon and silicon are the main elements of the microstructure and properties of cast iron. Gray flake graphite cast iron has played the role of notch in the matrix, thus making gray cast iron as a structural metal material does not have the incision sensitivity. Gray cast iron with good damping capacity, the production of electrical and mechanical equipment on the chassis or rack of gray cast iron parts, energy can effectively absorb the vibration machine, which play the role of damping, which is gray iron a very important performance. 4) gray cast iron has good lubricating properties, while making use of gray cast iron to withstand the mechanical and electrical equipment parts sliding friction, with good anti-friction properties. One in the presence of moisture, graphite is a good lubricant, and once when the graphite is substantially off from the space left by the lubricating oil and easy to store, and this is of gray cast iron can become an important condition for good wear-resistant materials . Botou River casting Heavy Machinery Co., Ltd. is a professional production of iron castings, steel castings, ductile iron, ingot mold manufacturers. Strength of the company, a professional production and processing plant, to meet different customer product requirements. Production equipment, testing equipment!