Sodium silicate sand mould, VRH method water glass precision casting sand mould, organic chemical ester silicate no-bake sand mould, clay semi-dry mould, epoxy resin no-bake sand mould and concrete sand mould can be used; The geo-trough modeling method is low-cost, and it can be completed and put into production quickly. Multi-box modeling and split-box modeling are more suitable for mass-produced or long-term molded products. Although mold shells and sand boxes are gradually invested in high projects, compensation can be obtained from saving modeling construction time and improving product quality.
Casting methods such as low-voltage casting, aluminum die-casting, and centrifugal casting are only suitable for mass production due to the high price of machinery and equipment and die-casting molds. The standard method of casting manufacturers should be suitable. For example, for the production of large and medium-sized CNC lathes, etc., the core molding method is generally used, and the mold and sand box are not manufactured, but the core is assembled in the ground groove; while another processing plant uses a sand box. Modeling method, make the appearance.
Different high-precision casting companies have different production standards (including machinery and equipment, places, employee behavior norms, etc.), production habits, and accumulated experience. According to those standards, we should consider which equipment is suitable and which is not suitable (or not). can) what commodity.
Precision standards and costs The casting precision obtained by various casting methods is different, the initial project investment and productivity are inconsistent, and the final economic benefits are also different. Therefore, in order to achieve more, faster, better, and more economical, it should be applied to all fields. Solve the casting method used to carry out a basic cost estimate to identify the casting method that has high economic benefits and can ensure casting regulations.