Die material with high-temperature stability and high resistance to cold and hot fatigue

Abstract

The invention discloses a die material with high-temperature stability and high resistance to cold and hot fatigue. The die material is formed by combining a material with high resistance to cold and hot fatigue and a material with high-temperature stability, the material with the high resistance to the cold and hot fatigue is composed of high-speed steel rollers, the material with the high-temperature stability is composed of hot-working die steel which is formed by combining 4CrW2Si and 3Cr2W8V, and the high-speed steel rollers and the hot-working die steel are combined in a high-temperature fusing mode. By the mode, the die material can have the very high resistance to the cold and hot fatigue, and meanwhile at a high temperature, the stability of the die material can be kept, and hardness and strength of the die material will not decline.

Description

technical field [0001] The invention relates to a mold material, in particular to a high-temperature stable mold material with high resistance to cold and heat fatigue. Background technique [0002] With the continuous improvement of modern science and technology, the mold industry has higher and higher requirements for mold materials. As far as some materials are currently used, although some materials have good cold and heat fatigue performance, they are still under high temperature conditions such as tempering. Under the condition of high temperature, its high temperature stability is not enough, and its hardness and strength decrease. On the contrary, some materials have such strong high temperature stability, but because the mold is often under the condition of high temperature and cooling alternately, its cold and heat fatigue performance is poor. It is easy to cause poor mold precision and mold failure. Contents of the invention [0003] The technical problem...

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of modern science and technology, the mold industry has higher and higher requirements for mold materials. As far as some materials are currently used, although some materials have good cold and heat fatigue performance, they are still under high temperature conditions such as tempering. Under the condition of high temperature, its high temperature stability is not enough, and its hardness and strength decrease. On the contrary, some materials have such strong high temperature stability, but because the mold is often under the condition of high temperature and cooling alternately, its cold and heat fatigue performance is poor. It is easy to cause poor mold precision and mold failure