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Heat Treatment Process of Hot Work Die Steel

A die steel and process technology, applied in the field of heat treatment of hot work die steel, can solve the problems of low impact toughness, poor isotropic performance of hot work die steel, large energy consumption in heat treatment process, etc. The effect of uniform crystal structure and uniform distribution of internal structure

Active Publication Date: 2021-06-29
吕鹏昊
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a heat treatment process for hot work die steel, aiming to solve the problem of high energy consumption in the heat treatment process of hot work die steel in the prior art and the existence of isotropic properties in the produced hot work die steel Technical problems of poor and low impact toughness

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  • Heat Treatment Process of Hot Work Die Steel
  • Heat Treatment Process of Hot Work Die Steel
  • Heat Treatment Process of Hot Work Die Steel

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or ele...

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Abstract

The invention belongs to the technical field of alloy steel production technology, and in particular relates to a heat treatment process of hot work die steel, which specifically includes the following steps: S10. high temperature homogenization treatment; S20. forging; S30. grain refinement treatment; S40 .Ultrafine treatment; S50. Spheroidizing annealing heat treatment; S60. Quenching and tempering treatment. The heat treatment process of the hot work die steel realizes the high-temperature diffusion homogenization inside the electroslag ingot by using the latent heat of solidification inside the electroslag ingot, and uses the waste heat of the forging itself to realize the preparatory heat treatment for fine grains, so that there is no need to use An external heat source or only a small amount of external supplementary heat is needed to achieve the purpose of saving energy; at the same time, there is no need to anneal the electroslag ingot in the red hot state and cool the forging after forging, which can also greatly reduce the production time ,Increase productivity.

Description

technical field [0001] The invention belongs to the technical field of manufacturing technology of alloy steel, and in particular relates to a heat treatment technology of hot work die steel. Background technique [0002] Due to the harsh working environment, hot work die steel has high requirements on its performance and service life. Therefore, in the process of making hot work die steel, it is necessary to perform multiple heat treatments on the hot work die steel to improve the thermal performance. The use performance and service life of tools and dies. At present, the metallurgical manufacturing process of hot-working tools and dies usually adopts the process of electric furnace smelting, electroslag remelting, cooling, forging and then spheroidizing and annealing. However, the current heat treatment process is in the actual During the production process, forgings need to be heated and cooled many times, resulting in the consumption of large electric energy, which great...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D8/00C21D1/18C21D1/32C21D1/25C21D6/04
CPCC21D1/18C21D1/25C21D1/32C21D6/04C21D8/005
Inventor 吕鹏昊吴鸿丽杜玉莲吕明柯何玉全
Owner 吕鹏昊
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