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Corrosion-resistant wear-resistant steel plate and preparation method thereof

A wear-resistant steel plate and anti-corrosion technology, applied in the field of wear-resistant steel and its preparation, can solve the problems of not considering anti-corrosion wear performance, high alloy content addition, harsh preparation process, etc., to achieve excellent anti-corrosion wear performance, excellent anti-corrosion The effect of corrosion and wear, and the simple preparation method

Inactive Publication Date: 2021-01-01
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies of the prior art and solve the problems of high alloy content in the anti-corrosion and wear-resistant steel plate in the prior art, the harsh preparation process and the anti-corrosion and wear performance without considering the corrosion working conditions, the present invention provides a Anti-corrosion wear-resistant steel plate

Method used

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  • Corrosion-resistant wear-resistant steel plate and preparation method thereof
  • Corrosion-resistant wear-resistant steel plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This embodiment provides the aforementioned anti-corrosion and wear-resistant steel plate and a preparation method thereof.

[0050] The chemical composition in the steel plate includes by mass percentage: C: 0.16%, Si: 0.10%, Mn: 0.30%, P≤0.015%, S≤0.005%, Cr: 4.00%, Ni: 0.30%, Mo: 0.20% , Als: 0.045%, B: 0.0012%, Ca: 0.0015%, Nb: 0.025%, Ti: 0.012%, Cu: 0.41%, wherein the mass ratio of Ca element to S element is greater than 3, and the rest is Fe and unavoidable impurity elements.

[0051] The preparation method of the above-mentioned anti-corrosion and wear-resistant steel plate comprises the following steps:

[0052] Alloy batching is carried out first, and the chemical composition includes: C: 0.16%, Si: 0.10%, Mn: 0.30%, P≤0.015%, S≤0.005%, Cr: 4.00%, Ni: 0.30%, Mo : 0.20%, Als: 0.045%, B: 0.0012%, Ca: 0.0015%, Nb: 0.025%, Ti: 0.012%, Cu: 0.41%, and the rest are Fe and unavoidable impurity elements.

[0053] The alloy ingredients in the above proportions are sm...

Embodiment 2

[0059] This embodiment provides another anti-corrosion and wear-resistant steel plate and a preparation method thereof.

[0060] The chemical composition in the steel plate includes by mass percentage: C: 0.14%, Si: 0.25%, Mn: 1.00%, P≤0.015%, S≤0.005%, Cr: 6.00%, Ni: 0.45%, Mo: 0.32% , Als: 0.038%, B: 0.0014%, Ca: 0.0023%, Nb: 0.025%, Ti: 0.014%, Cu: 0.40%, wherein the mass ratio of Ca element to S element is greater than 4, and the rest is Fe and unavoidable impurity elements.

[0061] The preparation method of the above-mentioned anti-corrosion and wear-resistant steel plate comprises the following steps:

[0062] Alloy batching is carried out first, and the chemical composition includes: C: 0.14%, Si: 0.25%, Mn: 1.00%, P≤0.015%, S≤0.005%, Cr: 6.00%, Ni: 0.45%, Mo : 0.32%, Als: 0.038%, B: 0.0014%, Ca: 0.0023%, Nb: 0.025%, Ti: 0.014%, Cu: 0.40%, and the rest are Fe and unavoidable impurity elements.

[0063] The alloy ingredients in the above proportions are smelted into ...

Embodiment 3

[0067] This embodiment provides yet another anti-corrosion and wear-resistant steel plate and a preparation method thereof.

[0068] The chemical composition in the steel plate includes: C: 0.22%, Si: 0.10%, Mn: 0.30%, P≤0.015%, S≤0.005%, Cr: 5.10%, Ni: 1.25%, Mo: 0.62%, Als: 0.045%, B: 0.0012%, Ca: 0.0015%, Nb: 0.02%, V: 0.038%, Ti: 0.012%, Cu: 0.41%, wherein the mass ratio of Ca element to S element is greater than 3, and the rest is Fe and unavoidable impurity elements.

[0069] The preparation method of the above-mentioned anti-corrosion and wear-resistant steel plate comprises the following steps:

[0070] Alloy batching is carried out first, and the chemical composition includes: C: 0.22%, Si: 0.10%, Mn: 0.30%, P≤0.015%, S≤0.005%, Cr: 5.10%, Ni: 1.25%, Mo : 0.62%, Als: 0.045%, B: 0.0012%, Ca: 0.0015%, Nb: 0.02%, V: 0.038%, Ti: 0.012%, Cu: 0.41%, and the rest are Fe and unavoidable impurity elements.

[0071] The alloy ingredients in the above proportions are smelted i...

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Abstract

The invention relates to a corrosion-resistant wear-resistant steel plate and a preparation method thereof. The corrosion-resistant wear-resistant steel plate comprises the following chemical components in percentage by mass: 0.14-0.22% of C, 0.10-1.00% of Si, 0.1-1.0% of Mn, less than 0.015% of P, less than 0.005% of S, 3.00-6.00% of Cr, 0.00-1.50% of Ni, 0.00-0.80% of Mo, 0.02-0.06% of Als, 0.0008-0.005% of B, 0.0015-0.0040% of Ca and the balance of Fe and inevitable impurity elements, wherein Ca / S> / =1, and the volume fraction of a lath martensite structure in the steel plate is larger thanor equal to 95%. The novel steel plate with excellent corrosion and wear resistance in an acid environment is prepared through an alloy component design and the combination of a heat treatment process, the corrosion and wear resistance of the novel steel plate is 2.5-3.0 times that of existing Brinell hardness martensite wear-resistant steel under the acid working condition with a pH value of 4-5,the corrosion-resistant wear-resistant steel plate can be widely applied to manufacturing of equipment for garbage storage and transportation, papermaking and chemical engineering, ore sand transportation, coal mining and transportation and the like.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant steel and its preparation, and in particular relates to a corrosion-resistant wear-resistant steel plate and a preparation method thereof. Background technique [0002] Wear-resistant steel plates are important raw materials for the manufacture of construction machinery, mining machinery, metallurgical machinery and chemical equipment. When this type of equipment is used, its wear-resistant parts usually come into direct contact with the material, resulting in wear failure. Among the materials in contact with the wear-resistant parts, except for a small part of dry materials, most of the materials are in a wet corrosion state, thus causing corrosion damage to the wear-resistant parts. In severe cases, wear-resistant parts will fail due to corrosion, which will make the manufactured equipment scrapped prematurely. In addition, when there is corrosion in the wear-resistant parts during the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/44C22C38/54C22C38/06C22C38/46C22C38/48C22C38/50C22C38/42C21D8/02C21D1/18
CPCC21D1/18C21D8/0226C21D2211/008C22C38/02C22C38/04C22C38/06C22C38/42C22C38/44C22C38/46C22C38/48C22C38/50C22C38/54
Inventor 邓想涛付天亮彭思远王昭东
Owner NORTHEASTERN UNIV
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