manufacturing process for heat treatment process
Mold during the manufacturing process is the vast majority of mold heat treatment of a process long in use, since the 70s of last century onwards, the international community to put forward the idea of pre-hardening, but the machine tool and cutting tool rigidity constraints, pre-hardening Mold can not reach the hardness of the use of hardness, so pre-hardening technology, little investment in research and development. With the machine tool and cutting tool performance improvement, pre-hardened mold material technology development has accelerated, to the last century 80's, the international community in the industrial countries the use of plastic timber on the proportion of pre-hardening modules have reached 30% (currently more than 60%). China in the last century in the late 90's pre-hardening module (the main imported products).
Pre-hardened mold material in the mold material technology development and implementation of the manufacturer. By adjusting the chemical composition of steel and equipped with the appropriate heat treatment equipment, can be mass-produced quality of the pre-hardening modules. In the pre-hardened mold material technology, their late start, is small and can not meet the requirements of internal mold manufacturing.
Pre-hardened mold material, mold manufacturing process can be simplified to shorten the manufacturing cycle of molds, to improve the manufacture of precision molds. It can be foreseen that with the advances in processing technology, pre-hardened mold material will be used for more types of mold.