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Preparation method of high-hardness wear-resistant stainless steel

A stainless steel, wear-resistant technology, applied in the field of alloy steel, can solve the problems of thin film delamination, large internal stress, low adhesion, etc., and achieve precise and controllable conditions, high elastic modulus, and complete coating functionality. Effect

Active Publication Date: 2019-10-25
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the large internal stress and low adhesion between the TiAlN and VN combined coatings and between the coating and the substrate, the problems of delamination, peeling and failure of the film have occurred; so the use of TiAlN and VN has not yet been disclosed. The composite coating of VN combination makes the surface of stainless steel have the characteristics of high hardness and self-lubrication (that is, high wear resistance)

Method used

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  • Preparation method of high-hardness wear-resistant stainless steel
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  • Preparation method of high-hardness wear-resistant stainless steel

Examples

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Effect test

Embodiment 1

[0033] A preparation method of high-hardness and wear-resistant stainless steel, the steel grade is Cr 25 Mo 3 Ti, stainless steel with a size of 60x60mm is the base material, characterized in that:

[0034] a. The steel grade is Cr 25 Mo 3 Ti, the stainless steel matrix material with a size of 60x60mm is properly machined to make it a tool or mold shape that meets industrial standards; then the matrix is ​​subjected to high-temperature quenching at 1240°C and three times of high-temperature tempering at 560°C. Grind with 800#, 1000#, 1500# water sandpaper in turn, and use diamond with a particle size of 0.1 μm as a polishing agent to perform polishing on a polishing machine;

[0035] b. Carry out multi-step cleaning and pretreatment of tap water, alcohol and other mixed solvents, acid-alkali treatment solution, high-purity water-ultrasonic, acetone-ultrasonic and other multi-step cleaning and pretreatment on the tool or mold base, and then dry it for later use; the acid-ba...

Embodiment 2

[0040] A preparation method of high-hardness and wear-resistant stainless steel, the steel grade is Cr 17 Mo 2 Ti, stainless steel with a size of 80x80mm is the base material, characterized in that:

[0041] a. The base number is Cr 17 Mo 2 Ti and stainless steel materials with a size of 80x80mm are properly machined to make them a tool or mold shape that meets industrial standards; then the substrate is subjected to high-temperature quenching at 1240°C and three times of high-temperature tempering at 560°C, and the heat treatment is performed on a grinding machine in sequence. Grind with 800#, 1000#, 1500# water sandpaper, and use diamond with a particle size of 0.1 μm as a polishing agent to polish on a polishing machine;

[0042] b. Carry out multi-step cleaning and pretreatment of tap water, alcohol and other mixed solvents, acid-alkali treatment solution, high-purity water-ultrasonic, acetone-ultrasonic and other multi-step cleaning and pretreatment on the tool or mold...

Embodiment 3

[0047] A preparation method of high-hardness and wear-resistant stainless steel, the selected grade is 0Cr 19 Ni 9 , stainless steel with a size of 60x70mm as the base material, characterized in that:

[0048] a, the pair of grades is 0Cr 19 Ni 9 , The stainless steel base material with a size of 60x70mm is properly machined to make it a tool or mold shape that meets industrial standards; then the base is subjected to high-temperature quenching at 1240°C and three times of high-temperature tempering at 560°C. Grind with 800#, 1000#, 1500# water sandpaper, and use diamond with a particle size of 0.1 μm as a polishing agent to polish on a polishing machine;

[0049] b. Carry out multi-step cleaning and pretreatment of tap water, alcohol and other mixed solvents, acid-alkali treatment solution, high-purity water-ultrasonic, acetone-ultrasonic and other multi-step cleaning and pretreatment on the tool or mold base, and then dry it for later use; the acid-base treatment solution...

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Abstract

The invention provides a preparation method of high-hardness wear-resistant stainless steel. The preparation method comprises the following specific steps of: firstly machining a substrate, carrying out heat treatment, polishing and carrying out polishing treatment, then cleaning, airing, carrying out ion implantation of titanium and nitrogen double elements by adopting an ion implantation method,depositing a TiAlN film layer in a multi-arc ion plating machine, and depositing a VN film layer in the multi-arc ion plating machine. The stainless steel prepared by the method has relatively high hardness, good workability, electrical conductivity and thermal conductivity and the like; and by adopting the preparation method, the conditions are precise and controllable, the surface coating of the stainless steel has complete functionality, and the rate of finished products is high.

Description

technical field [0001] The invention relates to the technical field of alloy steel, in particular to a high-hardness and wear-resistant stainless steel. Background technique [0002] Stainless steel refers to steel resistant to weak corrosive media such as air, steam, water, and chemically corrosive media such as acid, alkali, and salt. It is also called stainless acid-resistant steel. In practical applications, the steel resistant to weak corrosion medium is often called stainless steel, and the steel resistant to chemical medium corrosion is called acid-resistant steel. Due to the difference in chemical composition between the two, the former is not necessarily resistant to chemical media corrosion, while the latter is generally stainless. The corrosion resistance of stainless steel depends on the alloying elements contained in the steel. [0003] In modern society, stainless steel has an extremely wide range of uses, it can be used in both household products and industr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/18C23C14/02C23C14/48C23C14/06C23C14/32C23G1/08C23G1/19
CPCC21D1/18C23C14/0021C23C14/021C23C14/0641C23C14/325C23C14/48C23G1/088C23G1/19
Inventor 徐照英肖艳红苏永要张腾飞王锦标
Owner CHONGQING UNIV OF ARTS & SCI
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