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Hot work die steel coated with coating and preparing method of hot work die steel

A technology of hot-working die steel and hot-working dies, which is applied in the field of materials, can solve problems such as increased production costs, high-temperature wear, and die failure, and achieve the effects of reducing high-temperature wear, excellent comprehensive performance, and reducing high-temperature oxidation

Inactive Publication Date: 2020-05-15
珠海华瑞达电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the process of quenching and tempering is adopted, and the hot work die steel is affected by many aspects in the complex high-temperature working environment, and defects of high-temperature wear and high-temperature oxidation often occur, resulting in the failure of the die, thereby indirectly increasing the Cost of production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A coated hot work die steel includes a 4Cr5MoSiV steel plate and a coating on the 4Cr5MoSiV steel plate; the coating is composed of 5 parts of TiC and 95 parts of high-entropy alloy FeMnCrNiCo, and the thickness of the coating is 0.8mm.

[0025] A method for preparing a coated hot work die steel, comprising the following steps:

[0026] (1) Substrate pretreatment, first, cut the 4Cr5MoSiV steel plate into a plate with a thickness of 10mm, a width of 100mm, and a length of 200mm. Then, use a milling machine to cut the surface of the 4Cr5MoSiV steel plate to remove the oxide layer until the metallic luster is exposed. Then, degrease and clean the 4Cr5MoSiV steel. The main component of the degreasing agent is potassium hydroxide, and an organic complexing agent is used as a cleaning aid. The temperature is controlled at about 25°C during cleaning. After cleaning, rinse with clean water and finally wipe the surface of the steel plate with alcohol. And dry, set aside.

[0...

Embodiment 2

[0031] A coated hot work die steel includes a 4Cr5MoSiV steel plate and a coating on the 4Cr5MoSiV steel plate; the coating is composed of 5 parts of TiC and 95 parts of high-entropy alloy FeMnCrNiCo, and the thickness of the coating is 1.0 mm.

[0032] A method for preparing a coated hot work die steel, comprising the following steps:

[0033] (1) Substrate pretreatment, first, cut the 4Cr5MoSiV steel plate into a plate with a thickness of 10mm, a width of 100mm, and a length of 200mm. Then, use a milling machine to cut the surface of the 4Cr5MoSiV steel plate to remove the oxide layer until the metallic luster is exposed. Then, degrease and clean the 4Cr5MoSiV steel. The main component of the degreasing agent is potassium hydroxide, and an organic complexing agent is used as a cleaning aid. The temperature is controlled at about 25°C during cleaning. After cleaning, rinse with clean water and finally wipe the surface of the steel plate with alcohol. And dry, set aside.

[...

Embodiment 3

[0038] A coated hot work die steel, including a 4Cr5MoSiV steel plate and a coating on the 4Cr5MoSiV steel plate; the coating is composed of 5 parts of TiC and 95 parts of high-entropy alloy FeMnCrNiCo, and the thickness of the coating is 1.2mm.

[0039] A method for preparing a coated hot work die steel, comprising the following steps:

[0040] (1) Substrate pretreatment, first, cut the 4Cr5MoSiV steel plate into a plate with a thickness of 10mm, a width of 100mm, and a length of 200mm. Then, use a milling machine to cut the surface of the 4Cr5MoSiV steel plate to remove the oxide layer until the metallic luster is exposed. Then, degrease and clean the 4Cr5MoSiV steel. The main component of the degreasing agent is potassium hydroxide, and an organic complexing agent is used as a cleaning aid. The temperature is controlled at about 25°C during cleaning. After cleaning, rinse with clean water and finally wipe the surface of the steel plate with alcohol. And dry, set aside.

...

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Abstract

The invention belongs to the field of materials, and particularly discloses hot work die steel coated with a coating. A hot work die steel base body and the coating arranged on the hot work die steelbase body are included. The coating is mainly composed of TiC and a high-entropy alloy, and the high-entropy alloy is a high-entropy alloy FeMnCrNiCo. According to the hot work die steel, the high-entropy alloy serves as a basis, TiC serves as an enhancing phase, the laser cladding technology is utilized, fusion covering of FeMnCrNiCo high-entropy alloy powder and TiC is conducted on the hot workdie steel, the hot work die steel has better high-temperature performance, and high-temperature abrasion and high-temperature oxidation in the high-temperature work environment can be effectively reduced. The comprehensive performance of the hot work die steel coated with the coating is excellent, the hot work die steel can bear huge impact force during work and can bear contact with high-temperature metal, and repeated heating and cooling can be achieved.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a coated hot work die steel and a preparation method thereof. Background technique [0002] Hot work die steel refers to alloy tool steel suitable for making molds for thermal deformation processing of metals. Air quenching hardening hot work die steel (4Cr5MoSiV) is a hot work die steel widely used in the mold industry. At present, most hot work die steels are mainly prepared by quenching and tempering process, which has good high temperature performance. However, at present, the process of quenching and tempering is adopted, and the hot work die steel is affected by many aspects in the complex high-temperature working environment, and defects of high-temperature wear and high-temperature oxidation often occur, resulting in the failure of the die, thereby indirectly increasing the Cost of production. [0003] Therefore, it is desirable to provide a hot work die steel that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C30/00
CPCC22C30/00C23C24/103
Inventor 王开华
Owner 珠海华瑞达电子科技有限公司
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