Breathable steel is made of fine particle ball powder stainless steel sintered at high temperature, all directions are evenly covered with tiny exhaust holes, also known as porous materials porous metals, which can be used in injection injection molding dies to solve trapped gas problems.

Because in MIM, the molten material will produce a certain amount of gas due to high temperature during filling process. If the gas can be discharged during filling, it will cause trapped gas problem, which will cause bubble defects inside the injection molding blank affect the strength of the final product. People use the characteristics of breathable steel to make use of it. MIM mold The exhaust problem can be effectively improved.

In addition to smoother exhaust, the use of breathable steel materials in MIM dies also has many advantages. Let me introduce you to Xiaobian.

First, it can reduce injection pressure reduce molding holding time. The MIM made of breathable steel has good air permeability less resistance during mold filling, so it can be filled smoothly only with less injection pressure.

Two, it can reduce eliminate the internal stress of the forming parts prevent the deformation warpage of the products.

Three. It can reduce the clamping force of the injection molding machine extend the service life of the mold accessories. The smaller the injection pressure, the smaller the clamping force needed. The stress produced by the gas steel mold is small when injected, it is easy to expand the die, thus greatly prolonging the service life of the mold parts.

Four, due to the close match of mold parting surface, it is possible to solve the difficulty of die opening. To solve many problems such as thimble, inserts so on, which can provide enough surface area to accommodate a large number of gases that may arise, avoid flying edges other defects produced by parting surfaces other exhaust systems.

Five, reduce forming defects. The defects such as scorch, flow mark, lack of material deactivation caused by the rapid condensation of the molding material in high temperature the pressure in the mold cavity can be fully solved. The problems such as gate deflection, wall thickness unevenness, thin wall products so on are difficult to form.

Six, it can greatly reduce injection time, improve forming efficiency, save energy consumption reduce production costs.

To sum up, the use of breathable steel in MIM mold manufacturing can reduce production costs speed up the production process of MIM products, thus obtaining the wide application of mold manufacturers.