Q1: What is the difference between 718 mold steel and 718h mold steel, which is better for injection molding?
The 718H is the 718 in a pre-hardened state, except in special cases the 718 is delivered in a pre-hardened state. Pre-hardened mainly for plastic molds, pre-hardened hardness in about 30-40, such hardness not only to meet the hardness requirements of plastic molds, but also does not affect grinding and grinding and others processability. H13 is a hot work mold steel, mainly highlighting thermal resistance, thermal fatigue resistance, working temperature at 600 degrees or so the best performance. It can also be used as steel for plastic molds, but requires additional heat treatment. A mold frame is simply a rack for mounting molds and is made from many materials, such as cast iron, which is relatively inexpensive. Shenyang Zhongjin Mold Steel
Q2:Find the physical properties of domestic mold steel.
1, mold steel, mold steel can be roughly divided into (cold work mold steel), (hot work mold steel) and (plastic mold steel) 3 categories, used for forging, stamping, cutting type, die casting, etc., due to the different uses of various molds, complex working conditions;
2, so the steel used for molds, according to the working conditions of the molds they manufacture, must have high hardness, strength, wear resistance, sufficient toughness, molds are the cornerstone of industrial development, the world's manufacturing industry in order to reduce product costs, improve product quality and production efficiency, improve material utilization and save energy.
