Description Stainless Steel Hexagon screw mold selection method

Description Stainless Steel Hexagon screw mold selection method

Description Stainless Steel Hexagon screw mold selection method

      In a mold material selection is to consider the principle of economy, reduce manufacturing costs as much as possible. Therefore, to meet the performance of the premise, first, a lower price, not steel on steel can be used, can be used domestically produced materials do not need to import materials. In addition, selection should also consider the market's production and supply of selected steel should be minimal and concentrated, easy to buy.

     Mold manufacturing generally go through forging, machining, heat treatment, several working procedure. To ensure the quality of mold manufacturing, lower production costs, the material should have good malleability, machinability, hardenability, hardenability and can be grinding sex; should have little oxidation, decarbonization and quenching sensitivity deformation cracking tendency.

1. Malleable
Hot deformation resistance with the lower, plastic good, wide range of forging temperature, forging crack network carbide precipitation of cold cracking and a low propensity.
2. Annealing process of
Ball annealing temperature range, annealing hardness range of low and volatile small, the ball high.
3. Machinability
Cutting large, low tool wear, low surface roughness.
4. Oxidation, decarbonization sensitivity
Antioxidant pregnant when heated to high temperatures can be good, decarbonization, slow is not sensitive to the heating medium, resulting in pitting tendency of small.
5. Hardenability
After quenching with a uniform and high surface hardness.
6. Hardenability
After the deep quench hardened layer can be used to alleviate the quenching medium can be hardened.
7. Quenching distortion cracking tendency
Quenched and small volume change, shape warping, distortion slight tendency to lower abnormal deformation. Low sensitivity of conventional quench cracking on quenching temperature and is not sensitive to the shape of the workpiece.
8. To grinding of
Wheel relative loss, no amount of grinding burn limit large, the quality of the grinding wheel and the cooling conditions are not sensitive, less prone to injuries grinding grinding cracks.