Method for producing high-chromium alloy by doping aluminum-magnesium alloy and various rare metals

A rare metal, aluminum-magnesium alloy technology, applied in the field of high-chromium alloy production of high-chromium alloys with mixed ratio of aluminum-magnesium alloys and various rare metals, can solve the problems of unsatisfactory mechanical properties of high-chromium alloys, and achieve fine grains, high hardness and hardness. improved effect

Inactive Publication Date: 2021-02-05
宁夏博德凯耐磨材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for producing high-chromium alloys by mixing aluminum-magnesium alloys and various rare metals. The aluminum-magnesium alloys, rare metals, chromium, silicon, boron and iron are refined into nano-scale powders by high-energy ball milling. The grains of the obtained high-chromium alloy are finer, and the high-chromium alloy has higher hardness, density and mechanical properties. T

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0041]A method for producing high-chromium alloy by mixing aluminum-magnesium alloy and various rare metals, including the following steps:

[0042]S1: Refine the aluminum-magnesium alloy, rare metals, chromium, silicon, boron and iron by high-energy ball milling to obtain nano-sized powders of various components;

[0043]S2: The chromium and iron powders are mixed in proportions and then melted to melt into molten iron, then sample and analyze the chemical composition, and adjust the carbon content according to the test results;

[0044]S3: Add silicon, boron, and rare metal powder to the liquid phase for melting;

[0045]The order of adding silicon, boron, and rare metal powder is as follows:

[0046]Silicon: After the chemical composition in the furnace is adjusted, the temperature is appropriate, add silicon, and tap the steel within 10-25min after adding;

[0047]Boron: add it just before tapping, and add proper amount of aluminum and titanium to the steel before adding boron;

[0048]Manganese: ad...

Embodiment 2

[0071]A method for producing high-chromium alloy by mixing aluminum-magnesium alloy and various rare metals, including the following steps:

[0072]S1: Refine the aluminum-magnesium alloy, rare metals, chromium, silicon, boron and iron by high-energy ball milling to obtain nano-sized powders of various components;

[0073]S2: The chromium and iron powders are mixed in proportions and then melted to melt into molten iron, then sample and analyze the chemical composition, and adjust the carbon content according to the test results;

[0074]S3: Add silicon, boron, and rare metal powder to the liquid phase for melting;

[0075]The order of adding silicon, boron, and rare metal powder is as follows:

[0076]Silicon: After the chemical composition in the furnace is adjusted, the temperature is appropriate, add silicon, and tap the steel within 10-25min after adding;

[0077]Boron: add it just before tapping, and add proper amount of aluminum and titanium to the steel before adding boron;

[0078]Manganese: ad...

Embodiment 3

[0101]A method for producing high-chromium alloy by mixing aluminum-magnesium alloy and various rare metals, including the following steps:

[0102]S1: Refine the aluminum-magnesium alloy, rare metals, chromium, silicon, boron and iron by high-energy ball milling to obtain nano-sized powders of various components;

[0103]S2: The chromium and iron powders are mixed in proportions and then melted to melt into molten iron, then sample and analyze the chemical composition, and adjust the carbon content according to the test results;

[0104]S3: Add silicon, boron, and rare metal powder to the liquid phase for melting;

[0105]The order of adding silicon, boron, and rare metal powder is as follows:

[0106]Silicon: After the chemical composition in the furnace is adjusted, the temperature is appropriate, add silicon, and tap the steel within 10-25min after adding;

[0107]Boron: add it just before tapping, and add proper amount of aluminum and titanium to the steel before adding boron;

[0108]Manganese: ad...

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PUM

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Abstract

The invention discloses a method for producing high-chromium alloy by doping an aluminum-magnesium alloy and various rare metals, and relates to the technical field of metallurgy. The method comprisesthe following steps that S1, the aluminum-magnesium alloy, the rare metals, chromium, silicon, boron and iron are refined through a high-energy ball milling method to obtain nanoscale powder of eachcomponent; S2, chromium powder and iron powder are mixed in proportion and then melted into molten iron; S3, the silicon powder, the boron powder and the rare metal powder are added into a liquid phase for melting; and S4, before tapping, the aluminum-magnesium alloy is added into the liquid phase for melting. All the components are refined into nanoscale powder through the high-energy ball milling method, grains of the prepared high-chromium alloy are finer, the high-chromium alloy has higher hardness, compactness and mechanical performance, a nanocrystalline layer is prepared on the surfaceof the alloy through a mechanical grinding method, the hardness of the surface of the high-chromium alloy is greatly improved, the abrasion resistance is improved obviously, and by adding the aluminum-magnesium alloy and the rare metals, the overall performance of the high-chromium alloy can be improved.

Description

Technical field[0001]The invention belongs to the field of metallurgical technology, and particularly relates to a method for producing high-chromium alloys by mixing aluminum-magnesium alloys and a variety of rare metals.Background technique[0002]High chromium alloy steel generally has high hardness and high wear resistance. Bearing steel and grinding ball steel often use high chromium alloy steel as raw materials. High chromium alloys are widely used in cement building materials, metal mines, coal slurry thermal power, chemical engineering, Powder preparation and ultra-fine deep processing in ceramic coatings, light industrial papermaking, magnetic materials and other industries. The product has high hardness, low wear, good toughness, and less crushing. However, the mechanical properties of the existing high-chromium alloys are not ideal. The wear resistance is not enough, and the overall hardness is low. The present invention uses aluminum-magnesium alloy, chromium and various r...

Claims

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Application Information

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IPC IPC(8): C22C33/06C21C7/00C22C38/00C22C38/06C22C38/32C22C38/34C22C38/44C22C38/46C22C38/48C22C38/50C22C38/58C22C38/54
CPCC21C7/0006C22C33/06C22C38/002C22C38/06C22C38/32C22C38/34C22C38/44C22C38/46C22C38/48C22C38/50C22C38/54C22C38/58
Inventor 朱振波淳云美陈山河孟令南
Owner 宁夏博德凯耐磨材料有限公司
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