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High-strength and wear-resistant alloy steel

An alloy steel and high-strength technology, applied in the field of high-strength wear-resistant alloy steel, can solve problems such as insufficient strength, limited wear resistance, and limited application, and achieve good hardness and improve various indicators.

Inactive Publication Date: 2012-11-07
宁波市胜源技术转移有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary chromium-aluminum steel has limited wear resistance and short service life, resulting in increased production costs
High chromium cast iron has good wear resistance, but high cost, insufficient strength and poor toughness
At the same time, the solid-solution strengthening of chromium leads to a decrease in the compressibility of the alloy powder. What is more serious is that the affinity between chromium and oxygen is very high, and the oxide is difficult to reduce
This limits its application in powder metallurgy low alloy steel powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A high-strength wear-resistant alloy steel, the alloy steel is composed of 3 parts of carbon, 8 parts of vanadium nitride, 1 part of boron carbide, 7 parts of aluminum, 4 parts of magnesium, 1 part of silicon, 1.2 parts of tungsten, sulfur 0.2 parts, phosphorus 0.4 parts, paraffin wax lubricant 0.5 parts, molybdenum 0.3 parts, titanium 1.5 parts, and the rest is iron.

Embodiment 2

[0014] A high-strength wear-resistant alloy steel, the alloy steel is composed of 5 parts by weight of carbon, 4 parts of vanadium nitride, 3 parts of boron carbide, 5 parts of aluminum, 5 parts of magnesium, 1 part of silicon, 1.2 parts of tungsten, sulfur 0.5 parts, phosphorus 0.3 parts, paraffin wax lubricant 0.8 parts, molybdenum 0.1 parts, titanium 1.2 parts, and the rest is iron.

Embodiment 3

[0016] A high-strength wear-resistant alloy steel, the alloy steel is composed of 4 parts by weight, 6 parts of vanadium nitride, 2 parts of boron carbide, 6 parts of aluminum, 4.5 parts of magnesium, 1.5 parts of silicon, 1 part of tungsten, sulfur 0.35 parts, phosphorus 0.35 parts, paraffin wax lubricant 0.65 parts, molybdenum 0.2 parts, titanium 1.35 parts, and the rest is iron.

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PUM

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Abstract

The invention relates to a high-strength and wear-resistant alloy steel which comprises, by weight percent, 3-5% of carbon, 4-8% of vanadium nitride, 1-3% of boron carbide, 5-7% of aluminum, 4-5% of magnesium, 1-2% of silicon, 0.8-1.2% of tungsten, 0.2-0.5% of sulfur, 0.3-0.4% of phosphor, 0.5-0.8% of paraffin lubricant, 0.1-0.3% of molybdenum, 1.2-1.5% of titanium, and the balance iron. By controlling contents of each metal, each index of the alloy steel is improved, and the alloy steel is fine in rigidity, toughness, twist resistance, impact resistance, wear resistance and the like.

Description

technical field [0001] The invention relates to a high-strength wear-resistant alloy steel. Background technique [0002] In the prior art, the wear-resistant materials widely used in metallurgy, iron and steel industry, mining, cement industry, pulverizer and other mechanical parts are mostly common chrome-aluminum steel, vanadium steel or high-chromium cast iron, such as metallurgy and steel industry. The same is true for the materials of the main parts of machinery such as rolls, blow bars in mine cement, and hammer bodies on pulverizers. However, ordinary chrome-aluminum steel has limited wear resistance and short service life, resulting in increased production costs. High chromium cast iron has good wear resistance, but high cost, insufficient strength and poor toughness. At the same time, the solid-solution strengthening of chromium leads to a decrease in the compressibility of the alloy powder. What is more serious is that the affinity between chromium and oxygen is...

Claims

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Application Information

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IPC IPC(8): C22C38/60
Inventor 洪珊珊
Owner 宁波市胜源技术转移有限公司
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