Precision casting development in China is also now a lot of future prospects, the hardware industry in our country is also occupied a large market.So metal precision casting want to do better, more fine have good production conditions and professional technical personnel, production conditions and determines the future development of stainless steel casting quality requirements, so want to enter this industry or you are working on all want to know the importance of the following conditions.1, first of all is the performance uniformity, surface roughness and the dimensional accuracy requirements.One-time clay sand mold, for example, tight strength increasing represents the improvement of the production method, 40 s tight molding machine adopts the fill pressure tight pressure is 0.18 ~ 0.28 MPa, the '50 s is 0.35 ~ 0.42 MPa, 0.70 ~ 1.40 MPa in the 70 s.Tight pressure can ensure internal dense iron, at the same time achieve dimension stability and strict requirements of the casting surface is bright and clean.
g.On the basis of traditional casting, derive perfusion, potting, pressure casting, such as rotating casting and centrifugal casting method.>, the employees should also understand the relationship between the stainless steel casting defect generation and its operation.Because the defect is not necessarily a cause of formation, to eliminate or reduce defects must be comprehensive treatment can get good result.Practitioners should work hard to improve the quality of its place, coordinate adjacent process work, avoid defects.