Ceramic valve film dry-pressing mold in the production process of its outer surface of the material is the use of stainless steel, in the process of using its good anti-corrosion function, the mold die sets, pad and core Material hardened hardness of the mold steel, in the process of using its good wear resistance and pressure characteristics, in the production of a variety of standard-size materials can be provided to suppress the mold.
Ceramic valve film dry-pressing mold in the use of the process has its good anti-rust properties, the entire product of good wear resistance and pressure characteristics, the product has good thermal strength and red hardness, the mold heat Stability, good wear resistance, high temperature work is not oxidation, no deformation, not hanging material, extrusion products, high precision, surface quality, high yield characteristics.
Ceramic valve film dry-pressing mold is mainly used in hot-pressing of copper, brass, bronze and white copper bar, pipe, wire rod and profiled material. It can also be used for extruding titanium, stainless steel and aluminum alloy. The main product specifications and performance are as follows:
1. Hardness: Room temperature hardness: HRA 80-87; at 1000 ℃ temperature, Vickers hardness HV exceeds 400, therefore, RJT extrusion die is not deformed in use, the die hole geometry is stable, the extruded product size is accurate High degree of surface quality.
2. Abrasion resistance: Under the same conditions, the roll wear test was carried out, and the wear of RJT mold material was only one sixth of that of hot-working steel mold material (heat-treated 3Cr2W8V).
3. Friction coefficient: The coefficient of friction is 0.266.
4. Linear expansion coefficient: 11.62 × 10-6 ~ 12.31 × 10-6 mm / ℃.