With the Chinese industrial economic position continues to improve, the development of the machinery industry, mechanical design and manufacturing has become more and more important; at the same time, the highly development of another branch of material science and polymer material, so the material processing and utilization has become an inevitable. At this time, mold design, manufacturing will emerge as the times require. In addition, the rapid development of mold industry, to promote the comprehensive promotion and comprehensive utilization of materials, mold has been referred to as the material of "benefit amplifier".
With the improvement of plastic production and the expansion of application fields, more and more high requirements are put forward for plastic mould. At present, the plastic mold is developing towards high efficiency, high precision and long life, which promotes the rapid development of plastic mold materials and plastic mold industry.
Good plastic mold material must meet the following requirements:
Good machining performance
Sufficient surface hardness and wear resistance
Sufficient strength and toughness
Good polishing performance
Good heat treatment process
Good corrosion resistance
Good surface finish
There are various plastic mold materials due to the different requirements for different parts of the mold material,at present, the commonly used molding of plastic mold materials are the following:
SKD61:General mold
SKD11:GATE pieces
S45C:Template
S55C:Template
P20:Die holder
NAK80:Die holder
ROMAX:Antirust