| Message: | 1.Shanghai Matech Machinery Manufacture Corporation Ltd.is a sand casting,foundryx2fc7c4anin one large multi-functional integrated modern enterprise,and devote the high-quality stainless steel casting and first-class service for the masses of customers.
2.Shanghai Matech Machinery Manufacture Corporation Ltd. is specialized in Industry and agriculture,Machinery and industry equipment,Casting processing since established in 10 years ago.So far,our company has established its branch companies in major cities throughout the country.Formed in Rm.503, 1st Building , Wisdom Bay, Rd 6 Yunchuan,Baoshan District,City area,Shanghai,China as the center, the radiation sales system and service network.Details: Cast iron: an iron-carbon alloy containing more than 2% carbon. Industrial cast iron generally has a carbon content of 2.5% to 3.5%. Carbon is mostly in the form of graphite in cast iron, and sometimes in the form of cementite. In addition to carbon, cast iron also contains 1% to 3% of silicon, as well as manganese, phosphorus, sulfur and other elements. Alloy cast iron also contains elements such as nickel, chromium, molybdenum, aluminum, copper, boron, and vanadium. Carbon and silicon are the main elements that affect the microstructure and properties of cast iron. Cast iron can be divided into:1 gray cast iron. The carbon content is high (2.7%~4.0%), the carbon is mainly in the form of flake graphite, and the fracture is gray, referred to as gray iron. Low melting point (1145~1250 °C), small shrinkage during solidification, compressive strength and hardness close to carbon steel, good shock absorption. Since the flake graphite exists, the wear resistance is good. Casting performance and cutting processing are better. It is used to manufacture structural parts such as machine bed, cylinder and box. Its brand number is followed by "H" with two sets of numbers. For example: HT20-40 (the first number indicates the lowest tensile strength and the second number indicates |
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