Because the purpose of precision castings is different, there are many heat treatments. Generally, the key can be divided into two categories. The first is the structure that is not easy to change after heat treatment or should not be changed. The second is the general structure. Make a change. The key to the first heat treatment process is to remove internal stress, which is caused by differences in cooling conditions and standards throughout the entire process of stainless steel castings. The structure, compressive strength, and other mechanical equipment characteristics will not be significantly changed due to heat treatment.

Focusing on the second type of heat treatment, al-Qaeda has undergone significant changes, which can be roughly divided into five categories:

1, Softening and quenching: The key to its purpose is to dissolve cementite, reduce its strength, and improve production and processing characteristics. For ductile castings, its purpose depends on obtaining a large amount of ferrite structure.

2, Quenching process: The key purpose is to obtain pearlite and sorbite structure to improve the physical properties of stainless steel castings.

3, Heat treatment solution: The key is to obtain higher strength or friction coefficient compressive strength, and in addition to very high surface wear resistance.

4, Surface hardening solution: The key is to obtain a surface hardened layer, and in addition to obtain extremely high surface wear resistance.

5, Precipitation hardening solution: The key is to obtain high toughness and the elongation does not result in a drastic change.

Dongguan Precision Casting RecommendationDongguan CityMao Hardware Products Co., Ltd., Dongguan Chengmao Hardware Products Co., Ltd. is committed to satisfying the high-qualityGuangdong Stainless Steel Casting,as well asDongguan Precision CastingContinuously improve the quality of precision castings and expand its application areas.

It has accumulated rich experience in the production of marine hardware, auto parts, food machinery parts, medical equipment, electroplating hangers, glass curtain walls, stainless steel pot handles, door handles, locks, lamp parts and hardware tool castings.