Year1
- 规格：
- 齐全
- 价格：
- 合理
- 材料：
- 保证
- Steel is American extrusion plastic mold steel and carburized steel. This type of steel has very low carbon content, high chromium content, and has good resistance to tempering and high temperature oxidation. Mainly due to the extrusion molding method used in the early days of the United States, the mold steel is required to have good cold plasticity and high extrusion performance. After molding, the surface is carburized and quenched to increase the surface hardness and have a long service life. The ultra-low carbon in the core can reduce the deformation during quenching.
- The cold extrusion molding method has the advantages of high production efficiency, high mold precision, and smooth surface. Some plastic molds with complex cavities can be made using this method. This type of steel has low carbon content, has very low hardness after annealing, and has very low hardness when extruding into complex cavities
-. When squeezing a shallow cavity
-. This type of steel is added with alloying elements such as chromium that can improve hardenability but have little solid solution strengthening effect. The silicon content is low, and the mold is usually carburized after cold extrusion. The surface hardness is
~
- and the hardness after annealing is
-.
- Chemical composition
- The chemical composition of the steel (mass fraction):
-,
3
-,
3
-,< br/>-.
- Typical application examples
-) Used for high temperature thermosetting plastic molds.
-) Carburized plastic mold steel is mainly used for cold extrusion molding plastic molds.
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