Knowledge

Development history of lost wax casting

Investment casting is developed on the basis of ancient wax casting. As an ancient civilization, China is one of the countries that used this technology earlier.

Coating and fluidity of stainless steel precision casting coatings

Specific gravity: the viscosity has little influence on the specific gravity of the coating, and the specific gravity is closely related to the proportion, which directly affects the quality, strength

Advantages of stainless steel precision casting

The casting has high dimensional accuracy and fine surface roughness. The dimensional accuracy of the casting can reach grade 4-6 and the surface roughness can reach 0.4-3.2 μ m.

Key factors of stainless steel precision casting gear

In the process of stainless steel precision casting gear processing, the advanced blank forming process, the more stable and precise heat treatment process, and the particularly suitable surface harde

Causes of brittle fracture of stainless steel castings

The amount of deoxidizer aluminum used in smelting is too high. It is easy to form aluminum nitride inclusions with the nitriding compound in steel and make the casting brittle.

Cleaning method of stainless steel precision casting

Shot blasting. The impact force of high-speed steel shot, iron shot and abrasive particle flow is used to clean the core and sand, and polish the casting surface.

Selection requirements of blank for stainless steel precision casting

Requirements for materials and mechanical properties of precision casting parts: the process characteristics and mechanical properties of the materials of the parts roughly determine the type of blank

The method for determining the pouring surface of stainless steel precision c...

The important processing surface or main processing surface of the precision casting is downward or located at the side: during pouring, the gas in the molten metal, slag and sand particles in the mol