Jiangshan Huaxing Machinery factory tells you the requirements of precision casting steel casting

Precision casting steel has high dimensional accuracy, the general linear tolerance is 1%, the Angle of view tolerance is ±1/2 degree, and the surface smoothness can reach Ra1.6-3.2, which can save materials and machining costs. Parts with complex shapes can be produced, or multiple parts can be cast into one, saving on combination or welding work. Exquisite text or LOGO patterns can be cast on the surface of the product to enhance the image of the product.

Casting material performance is universal, heat resistance, wear resistance, corrosion resistance, material hardness up to HRC15-60, to meet the requirements of various working conditions. Casting production batch is flexible, can be from a small amount of production to mass production, high efficiency, good repeatability; Low mold cost, less initial investment in product development.

Most large steel castings are the main bearing parts and supporting parts in major technical equipment. The casting size is large, the shape is complex, and the section thickness is poor. These castings are often in a state of high temperature and pressure, and their performance and quality standards are strict, especially high temperature performance.

Steel castings should be heat-treated before use. The strength of steel castings, especially plasticity and toughness, greatly reduces the strength of steel castings, because there are casting defects such as pores, cracks, shrinkage and loosening, coarse grains, uneven structure and residual internal stress in steel castings.