Die heat treatment is an important means to improve the […]
Die heat treatment is an important means to improve the hardness performance of steel. Generally, it is carried out after the die is roughened. After the heat treatment, the fine machining is carried out. However, there are risks in the process of treatment. Improper treatment will cause cracks and scrap of steel. -- Helmet Mold Manufacturers
1) There is serious net carbide segregation in die material.
2) There is machining or cold plastic stress in the mold.
3) Improper heat treatment of the mold (too fast heating or cooling, improper selection of quenching cooling medium, too low cooling temperature, too long cooling time, etc.).
4) The complex shape, uneven thickness, sharp corners and thin threaded holes of the die lead to excessive residual thermal stress and structural stress.
5) The heating temperature of plastic mold during quenching is too high to produce overheating or overburning.
6) The tempering of the die after quenching is not timely or the tempering holding time is insufficient.
7) When the mold is repaired and quenched, it is reheated and quenched without intermediate annealing.
8) Die heat treatment, improper grinding process.
9) There are high tensile stress and microcracks in hardened layer during EDM after heat treatment.
Taizhou Huangyan Chuangji Mould Industry Co.,Ltd.
CHUANGJI MOULD is located in HUANGYAN, Taizhou city, which is famous as a mould town. We are specialized in making the automotive injection molding (Automtive Interior and Exterior Mould, Functional Mould)...
Useful Links
Our Products
Contact Us
home