The investment casting process is more complicated and difficult to control, and the materials used and consumed are more expensive. Therefore, it is suitable for the production of small parts with complex shapes, high precision requirements, or difficult other processing, such as turbine engine blades. The first process of investment casting china production is to manufacture the investment mold. The investment mold is used to form the model of the cavity in the refractory shell. Therefore, to obtain castings with high dimensional accuracy and surface finish, the investment mold itself should have a high size. Precision and surface finish. In addition, the performance of the investment mold itself should be as easy as possible to make the subsequent processes such as molding shells simple and easy.
The biggest advantage of investment casting china is that because investment castings have high dimensional accuracy and surface finish, machining work can be reduced. It is enough to leave a small machining allowance on the parts with higher requirements, even some castings only Leave the grinding and polishing allowance, you can use it without machining. The investment casting method can save a lot of machine tool equipment and processing man-hours, and greatly save metal raw materials. Another advantage of the investment casting china method is that it can cast complex castings of various alloys, especially high-temperature alloy castings.
Silica sol precision casting usually refers to making a pattern in a fusible material, covering the surface of the pattern with several layers of refractory material to form a shell, and then melting the pattern out of the shell to obtain a mold without a parting surface. After high temperature baking Then, the casting program can be filled with sand. The performance of the molding material ensures that the investment molds with precise dimensions, high surface finish, good strength and light weight can be easily produced. The use of precision castings has been applied to hardware and the entire mechanical and electronic industries. Stainless steel is not prone to corrosion, pitting, rusting or wear.