Precision Casting Cast steel has high dimensional accuracy, general linear tolerance of 1%, angle tolerance: ± 1/2 degrees, surface finish up to Ra 1.6-3.2, can save material and machining costs. Can produce complex parts of the shape, or a number of parts into one, eliminating the need for combination or welding work. You can cast in the product surface exquisite text or LOGO patterns, improve product image. Casting materials, a wide range of performance, heat, wear, corrosion resistance, material hardness up to HRC15-60, to meet the needs of various conditions. Casting production batch. Flexible, from a small amount to mass production can be, high efficiency, good repeatability; mold costs low, early investment in product development less.
Most of the large-scale steel castings are the main bearing parts and supports in the major technical equipment. The castings are large in size and complicated in shape. The thickness of the castings is often in the high temperature and high pressure working condition, and its performance and quality requirements are very strict. High temperature performance requirements more stringent.
Castings should be used after heat treatment. Because of the existence of stomata, cracks, shrinkage and shrinkage, coarse grain, uneven structure and residual internal stress, etc., the strength, especially the plasticity and toughness of the cast steel are greatly reduced.