What are the factors that affect the surface roughness of nickel wire mesh

What are the factors that affect the surface roughness of nickel wire mesh

Pressed and investment surface quality

The surface roughness of the investment mold is an important part that affects the surface roughness of the nickel wire mesh. It is also related to the surface quality of the mold, the method of the investment pressing and the parameters of the pressing process.

Stainless steel surface quality.

Stainless steel uses a columnar crystalline structure as a skeleton, and refractory materials, additives, and water are filled in the middle, so there are pores of different sizes on the surface after drying and baking.

The penetration of metal liquid into the surface pores of stainless steel is the main cause of the surface roughness. Metal liquid penetration depth: related to crystal diameter, surface pore average diameter sound, alloy liquid surface curvature radius, etc.

In order to obtain a smooth nickel surface, it is necessary to reduce the diameter of crystals and filler particles and reduce the surface pore diameter; or use additives that can be enriched on the surface to fill the larger pores to reduce the penetration depth of the metal liquid.