Taixing Qitai Mechanical Casting Co., Ltd. is a casting factory in Jiangsu, which mainly produces gray cast iron, ductile iron and high silicon solid solution ductile iron. The main products are water pump castings, wind power castings, pipeline castings and machine tool castings.
Taixing Qitai Machinery Casting Co., Ltd. was established on May 25th, 2006, and its legal representative is Zhou Jianze. The company's business scope includes the manufacture, processing and sales of iron castings and mechanical parts. Self-management and agency for the import and export of all kinds of goods and technologies, except those restricted and prohibited by the state. Projects that are subject to approval according to law can only carry out business activities after being approved by relevant departments.
Use of cast iron
In order to improve the mechanical properties of ductile iron, the castings are generally heated to 30-50℃ above Afc 1, and then oil quenched to obtain martensite structure. In order to properly reduce the residual stress after quenching, tempering should generally be carried out after quenching, and the low-temperature tempering structure is tempered martensite+residual bainite+spherical graphite. This structure has good wear resistance and is used for parts requiring high wear resistance and high strength.
Tempering temperature is 350-500℃, and the microstructure after tempering is tempered troostite plus spherical graphite, which is suitable for thick parts with good wear resistance and certain stability and elasticity. The high temperature tempering temperature is 500-600℃, and the microstructure after tempering is tempered Soxhlet plus spherical graphite, which has good comprehensive properties of toughness and strength and is widely used in production.
Baidu Encyclopedia-Cast Iron