What is the difference between general castings and precision castings?

Precision casting is the process of pouring liquid metal water concrete into the same solid mold as the casting, and cooling it to form the casting. The casting methods include sand mold casting, special casting, precision casting, and precision casting in V precision casting, which are divided into special casting. The parts cast using this method do not require production processing and may require minimal production processing.

Generally speaking, casting is a superficial form of forging, while aluminum die casting is a casting method of working pressure casting. Under high-pressure conditions, liquid metal materials are added to the casting physical model at a higher rate. Condensation under working pressure. Generally speaking, casting has multiple materials and external forces that deform under condensation conditions. Precision casting and general casting are two different casting methods, but precision casting has higher regulations and stronger accuracy. Compared with traditional sand mold casting processes, precision casting produces larger castings with stronger surface smoothness. Including: investment casting, ceramic mold casting, metal material mold casting, working pressure casting, and lost foam casting. The overall surface coating of stainless steel precision castings determines the process performance of the castings. Therefore, it is stipulated that the coating quality is high, the silica powder is fine, the coating viscosity should not be too high, and the sand removal should also be fine. Structural reinforcement coatings can improve the effectiveness of the shell and avoid damage to the shell. Therefore, thicker silica powder can be used, the paint viscosity is high, and the Degree distribution of desanding particles is also large.