Hot work die steel

Abstract

The invention discloses a hot work die steel, which comprises the following raw materials in parts by weight: 1-5 parts of carbon; 0.5-1 part of manganese; 0.2-0.5 parts of aluminum; 50-60 parts of iron; 15-25 parts of copper; 1‑3 parts; Tungsten 0.1‑0.3 parts. Filler 0.05‑0.1 parts. In the present invention, fillers are added to the raw material components, and the heat resistance and toughness of the mold steel can be significantly improved through the filling of kaolin, quartz sand and mica flakes, and the cracking of the mold steel caused by insufficient heat resistance and toughness can be effectively avoided. Phenomenon, greatly improving the service life of the mold, low cost.

Description

technical field [0001] The invention relates to the technical field of dies, in particular to a hot work die steel. Background technique [0002] Die steel is a type of steel used to make molds such as cold stamping dies, hot forging dies, and die casting dies. Mold is the main processing tool for manufacturing parts in industrial sectors such as machinery manufacturing, radio instruments, motors, and electrical appliances. The quality of the mold directly affects the quality of the pressure processing process, the precision output of the product and the production cost, and the quality and service life of the mold are mainly affected by the mold material and heat treatment in addition to the reasonable structural design and processing accuracy. At present, the hot work die steel produced by various domestic manufacturers will lose their original excellent performance due to insufficient heat resistance when the service temperature exceeds 600 ° C. Steel with high heat resi...

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