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Abrasion-resistant steel plate and preparation method thereof

A technology of wear-resistant steel plate and steel plate, which is applied in the field of steel plate materials, can solve the problems of wear resistance and corrosion resistance, etc., and achieve the effects of good toughness and hardenability, good wear resistance and good plasticity

Inactive Publication Date: 2018-11-02
AOYANG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the defects in the process and material selection of the existing clad steel plates, the wear resistance, corrosion resistance, and strength are not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] The invention also discloses a method for preparing a wear-resistant steel plate, which includes the following steps:

[0019] (1) Dosing according to the following mass percentages: 0.12-0.2% for carbon, 0.3-0.8% for manganese, 0.1-0.35% for cobalt, 0.05-0.15% for tungsten, 0.01-0.04% for neodymium, and 0.15-0.35% for nickel %, silicon is less than or equal to 0.3%, sulfur is less than or equal to 0.05%, boron is 0.02-0.06%, phosphorus is less than or equal to 0.05%, and the balance is iron-chromium powder, which is ball milled to a powder with a particle size of 50-100 μm to obtain alloy powder;

[0020] (2) Mix the above-mentioned alloy powder and molten steel into a mold evenly, place it in a vacuum furnace filled with argon and the temperature is 2000-2200°C for melting, remove impurities, and cool with the furnace to obtain a billet;

[0021] (3) After crushing the above-mentioned steel billet, ball mill it to a particle size of 50-100 μm, put it into a mold, pre...

Embodiment 1

[0024] In terms of mass percentage, it includes the following components: 0.12% carbon, 0.3% manganese, 0.1% cobalt, 0.05% tungsten, 0.01% neodymium, 0.15% nickel, 0.02% boron, and the balance is iron chromium powder.

[0025] A method for preparing a wear-resistant steel plate, comprising the following steps:

[0026] (1) Dosing according to the following mass percentages: carbon is 0.12%, manganese is 0.3%, cobalt is 0.1%, tungsten is 0.05%, neodymium is 0.01%, nickel is 0.15%, boron is 0.02%, and the balance is iron chromium Powder, ball milled to a powder with a particle size of 50 μm to obtain alloy powder;

[0027] (2) Mix the above-mentioned alloy powder and molten steel into a mold evenly, place it in a vacuum furnace filled with argon and smelt at a temperature of 2000°C, remove impurities, and cool with the furnace to obtain a billet;

[0028] (3) After crushing the above-mentioned billet, ball mill it to a particle size of 50 μm, put it into a mold, press and form ...

Embodiment 2

[0030] In terms of mass percentage, it includes the following components: 0.14% carbon, 0.4% manganese, 0.2% cobalt, 0.08% tungsten, 0.02% neodymium, 0.2% nickel, 0.15% silicon, 0.01% sulfur, boron 0.03%, phosphorus is 0.02%, and the balance is iron chromium powder.

[0031] A method for preparing a wear-resistant steel plate, comprising the following steps:

[0032] (1) Dosing according to the following mass percentages: carbon is 0.14%, manganese is 0.4%, cobalt is 0.2%, tungsten is 0.08%, neodymium is 0.02%, nickel is 0.2%, silicon is 0.15%, sulfur is 0.01%, Boron is 0.03%, phosphorus is 0.02%, and the balance is iron-chromium powder, which is ball milled to a powder with a particle size of 80 μm to obtain alloy powder;

[0033] (2) Mix the above-mentioned alloy powder and molten steel into a mold evenly, place it in a vacuum furnace filled with argon and have a temperature of 2100°C for melting, remove impurities, and cool with the furnace to obtain a billet;

[0034] (3...

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Abstract

The invention discloses an abrasion-resistant steel plate. The abrasion-resistant steel plate contains the following components including, by mass, 0.12-0.2% of carbon, 0.3-0.8% of manganese, 0.1-0.35% of cobalt, 0.05-0.15% of tungsten, 0.01-0.04% of neodymium, 0.15-0.35% of nickel, smaller than or equal to 0.3% of silicon, smaller than or equal to 0.05% of sulfur, 0.02-0.06% of boron, smaller than or equal to 0.05% of phosphorus, and the balance iron-chromium powder and unavoidable impurities, wherein the mass ration between iron and chromium in the iron-chromium powder is 0.8-1.2:1. The invention further discloses a preparation method of the steel plate. The method includes the steps that (1) materials are blended according to the above mentioned proportion, ball milling is performed till the particle diameter is 50-100 [mu]m, and alloy powder is obtained; (2) the alloy powder and liquid steel are mixed uniformly, put in a mold and then put in a vacuum furnace filled with argon gas and with the temperature being 2000-2200 DEG C for smelting, the impurities are removed, cooling along with furnace is performed, and then a steel billet is obtained; and (3) the steel billet is crushed and ball-milled till the granularity reaches 50-100 [mu]m, and then put in a mold for compression molding, pre-sintering is performed for 1-2 hours in the temperature of 800-850 DEG C, then sintering is performed for 3-5 hours in the temperature of 1200-1300 DEG C, thermal insulation is performed for 1-2 hours, and then the abrasion-resistant steel plate is obtained. The steel plate is good in abrasion resistance.

Description

technical field [0001] The invention relates to the technical field of steel plate materials, in particular to a wear-resistant steel plate and a preparation method thereof. Background technique [0002] The emergence and development of metal matrix composite panels have greatly improved and expanded the performance and application range of traditional single metal materials. The metal matrix composite sheet has higher specific tension, specific stiffness and specific strength than traditional single metal materials; it uses a metal as the base material and another material with different physical and chemical properties as the composite material. It is a new type of composite board that combines it with composite technology. This has great significance and social benefits for countries lacking nickel and chromium resources in my country. [0003] With the rapid development of metallurgy, chemical industry and other economic pillar industries, such as mining machinery, coa...

Claims

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Application Information

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IPC IPC(8): C22C38/04C22C38/52C22C38/44C22C38/02C22C38/54C22C38/60C22C33/06B22F3/02B22F3/10B22F9/04
Inventor 沈学如
Owner AOYANG GRP CO LTD
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