Soft mold (non-silicone mold) refers to the mold made of steel such as NAK80. The mold core of this material is generally pre-hardened and can be directly processed. After machining, it can be put into production without heat treatment. Hard die means that the core material of the die frame is annealed before machining and then heat treated after machining. After general heat treatment, electrical machining and shaping are needed.

Extended data:

First, soft mold. It is named because its soft materials (such as silicone rubber and epoxy resin) are different from traditional steel materials. These soft molds can be used as injection molds for trial production and small batch production, intermediate transition molds for manufacturing hard molds and low melting point alloy casting molds. These soft molds have good elasticity, reproducibility and certain strength.

Secondly, cemented carbide dies can be divided into four categories according to their uses:

1. Cemented carbide wire drawing dies, accounting for the vast majority of cemented carbide dies. At present, the main brands of drawing dies in China are YG8, YG6 and YG3, followed by YG 15, YG6X and YG3X. Some new brands have been developed, such as YL for high-speed wire drawing, and imported CS05(YLO.5), CG20(YL20) and CG40 (YL30). K 10、ZK20/ZK30 .

2. The dies are cold heading, cold stamping and shaping dies. The main brands are YC20C, YG20, YG 15, CT35, YJT30 and MO 15.

3. Non-magnetic alloy molds for producing magnetic materials, such as YSN series (including 20, 25, 30, 35 and 40) and steel bonded non-magnetic mold brand TMF.

4, hot die, this alloy has no standard brand, and the market demand is growing.

References:

Baidu encyclopedia-cemented carbide mold