Stainless steel food by any of the casting methods to adapt to, for example, sand casting, mass production of factories should create conditions for the use of technologically advanced molding, core making methods. Old-style shock or shock pressure molding machine production line productivity is not high enough, workers labor intensity, noise, does not adapt to the requirements of mass production, should be gradually transformed. For small castings, you can use the horizontal or vertical parting boxless high-pressure molding machine production line, solid molding production efficiency and high, covers an area of less; for the pieces can be used in a variety of box high-pressure molding machine production line, air punch molding line, to adapt to the requirements of fast, high-precision molding production line, core making method can be used: cold core box, hot core box, shell core and other core making methods.

Production process:

1、The furnace will melt into the steel and raise its superheat temperature to ensure the need of casting.

2, silicon, manganese and carbon in the steel (processing alloy steel, also including alloying elements) content, control the range of provisions.

3, reduce the harmful components of steel sulfur and phosphorus, so that the total content is reduced to below the prescribed limit.

4, remove non-metallic inclusions and gases in the steel, so that the pure steel liquid.

1, softening annealing: its purpose is mainly to decompose carbide, will reduce its hardness, while improving processing performance, for ductile iron, the purpose is to obtain more ferrite organization.

The treatment should be carried out:

2, normalizing treatment: the main purpose is to obtain the pearlite and sorite organization to improve the mechanical properties of stainless steel casting.

3, quenching treatment: mainly to obtain a higher hardness or wear strength, while the very high surface wear resistance characteristics.

4, surface hardening treatment: mainly to obtain a surface hardening layer, while getting a very high surface wear resistance characteristics.

5、 Precipitation hardening treatment: mainly to obtain high strength without drastic change in elongation.