Novel lightweight high manganese steel wear-resisting material

A wear-resistant material, high manganese steel technology, applied in the field of high manganese steel, can solve the problems of small impact load, increase production cost, reduce the service life of castings, etc., to achieve improved performance, excellent toughness and plasticity, and improved wear resistance Effect

Inactive Publication Date: 2018-02-09
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the density of the high-manganese steel liner smelted in the patent is reduced by 9.0% to 15.0%, and the wear resistance is increased by more than 40% compared with ordinary high-manganese steel, but when used on so

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1:

[0029] In this embodiment, the chemical composition of the new lightweight high-manganese steel wear-resistant material is calculated by weight percentage:

[0030] C: 1.02%; Si: 0.53%; Mn: 13.89%; Al: 2.25%; Cr: 1.45%; La+Ce+Pr+Nd mixed rare earth: 0.26%; P: 0.03%; S: 0.03%; The amount is Fe. In the mixed rare earth of La+Ce+Pr+Nd, by weight percentage, La: 20%; Ce: 60%; Pr: 5%; Nd: 15%.

[0031] In this embodiment, the preparation method of the new lightweight high-manganese steel wear-resistant material is implemented according to the following steps:

[0032] (1) Weigh the required raw materials according to the weight percentage of the ingredients in the formula, and then add them to the induction furnace for smelting. The Al element is added in the form of Al-Fe alloy. The adding temperature is 1530°C, and the tapping temperature is controlled at 1500°C. When the temperature drops to 1460℃, it is poured into the mold.

[0033] (2) Heat treatment: heating fro...

Example Embodiment

[0036] Example 2:

[0037] In this embodiment, the chemical composition of the new lightweight high-manganese steel wear-resistant material is calculated by weight percentage:

[0038] C: 1.26%; Si: 0.82%; Mn: 19.21%; Al: 4.52%; Cr: 1.53%; La+Ce+Pr+Nd mixed rare earth: 0.31%; P: 0.015%; S: 0.025%; The amount is Fe. In the mixed rare earth of La+Ce+Pr+Nd, by weight percentage, La: 18%; Ce: 58%; Pr: 8%; Nd: 16%.

[0039] In this embodiment, the preparation method of the new lightweight high-manganese steel wear-resistant material is implemented according to the following steps:

[0040] (1) Weigh the required raw materials according to the weight percentage of the ingredients in the formula, and then add them to the induction furnace for smelting. The Al element is added in the form of Al-Fe alloy. The adding temperature is 1530°C, and the tapping temperature is controlled at 1500°C. When the temperature drops to 1460℃, it is poured into the mold.

[0041] (2) Heat treatment: heating f...

Example Embodiment

[0044] Example 3:

[0045] In this embodiment, the chemical composition of the new lightweight high-manganese steel wear-resistant material is calculated by weight percentage:

[0046] C: 1.17%; Si: 0.67%; Mn: 18.06%; Al: 3.15%; Cr: 1.47%; La+Ce+Pr+Nd mixed rare earth: 0.29%; P: 0.013%; S: 0.018%; The amount is Fe. In the mixed rare earth of La+Ce+Pr+Nd, by weight percentage, La: 21%; Ce: 56%; Pr: 6%; Nd: 17%.

[0047] In this embodiment, the preparation method of the new lightweight high-manganese steel wear-resistant material is implemented according to the following steps:

[0048] (1) Weigh the required raw materials according to the weight percentage of the ingredients in the formula, and then add them to the induction furnace for smelting. The Al element is added in the form of Al-Fe alloy. The adding temperature is 1530°C, and the tapping temperature is controlled at 1500°C. When the temperature drops to 1460℃, it is poured into the mold.

[0049] (2) Heat treatment: heating f...

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Abstract

The invention relates to the field of high-manganese steel wear-resistant materials, in particular to a novel lightweight high-manganese steel wear-resistant material, which can be used in wear-resistant fields such as mines, building materials, and railways that bear impact loads, such as: ball mill liners , Crusher hammer and railway turnout, etc. In terms of weight percentage, the chemical composition of the wear-resistant material is: C: 0.90% to 1.30%; Si: 0.40% to 0.90%; Mn: 12% to 20%; Al: 1.0% to 5.0%; Cr: 1.0% ~2.5%; mixed rare earths of La+Ce+Pr+Nd: 0.1%~0.5%; P<0.04%; S<0.04%; the balance is Fe. The density of the light high manganese steel wear-resistant material of the invention is between 7.10-7.65g/cm3, which is 1.7%-8.5% lower than that of the traditional high manganese steel. In addition, the light-weight high manganese steel wear-resistant material of the present invention also has excellent toughness and plasticity, and its wear resistance is improved by more than 30% compared with the traditional high-manganese steel wear-resistant material.

Description

technical field [0001] The invention relates to the field of high manganese steel, specifically a novel lightweight high manganese steel wear-resistant material, which can be used in wear-resistant fields such as mines, building materials, railways, etc. that bear impact loads, such as: ball mill liners, crusher hammers and railway turnouts, etc. Background technique [0002] As the earliest wear-resistant material, high manganese steel has been researched and used for nearly a hundred years. It is widely used in metallurgy, mining, building materials, railways, electric power, coal and other mechanical equipment that are subjected to impact loads all year round. However, with the complex working conditions of high manganese steel castings and the continuous increase in the operating speed of mechanical equipment, high energy consumption, serious pollution, and severe impact wear in the working process lead to low life and mechanical efficiency, and it is difficult to achiev...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/18C21D1/18C21D6/00
CPCC22C38/02C21D1/18C21D6/002C21D6/005C21D6/008C21D2211/001C22C38/005C22C38/04C22C38/06C22C38/18
Inventor 刘越魏顺华
Owner NORTHEASTERN UNIV
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