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A wear-resistant lining plate alloy steel

A wear-resistant lining plate and alloy steel technology, applied in the field of wear-resistant lining plate alloy steel, can solve the problems of lack of wear resistance, strength and toughness, short service life, etc., to reduce thermal stress, improve performance, refine grain effect

Active Publication Date: 2019-07-30
MAANSHAN SHENGLEI WEAR RESISTANT ALLOY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of short service life of the existing wear-resistant liner alloy steel, lack of both wear resistance and strength and toughness, the present invention provides a wear-resistant liner alloy steel, which can greatly improve the performance of the wear-resistant liner alloy steel. Long service life, greatly improving its wear resistance and toughness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]A wear-resistant liner alloy steel according to this embodiment, its chemical composition mass percentage is: C0.4-0.5%, Al1.1-1.7%, Mn0.8-1.1%, Cr8.0-11.2%, Mo2. 5~3.0%, V0.1~0.3%, Co5~7%, Re0.25~0.35%, the balance is Fe and unavoidable impurity, specifically in this embodiment, it is composed of the following mass percentages: C0.45% , Al1.5%, Mn0.9%, Cr9.6%, Mo2.6%, V0.15%, Co6%, Re0.29%, the balance is Fe and unavoidable impurities. A kind of wear-resistant liner alloy steel of this embodiment is processed by the following heat treatment process:

[0033] 1. Complete annealing: heat the wear-resistant liner alloy steel to 850°C, keep it warm for 200 minutes, then cool slowly, anneal and cool to about 600°C, and leave the furnace for air cooling;

[0034] 2. Surface boronizing: Put the wear-resistant lining plate treated in step 1 into a salt bath boronizing agent composed of anhydrous borax plus boron carbide, ferroboron or silicon carbide, heat to 900°C for 4 hours...

Embodiment 2

[0040] A wear-resistant liner alloy steel according to this embodiment, its chemical composition mass percentage is: C0.4-0.5%, Al1.1-1.7%, Mn0.8-1.1%, Cr8.0-11.2%, Mo2. 5 to 3.0%, V0.1 to 0.3%, Co5 to 7%, Re0.25 to 0.35%, and the balance is Fe and unavoidable impurities, which are specifically composed of the following mass percentages in this embodiment: C0.4% , Al1.1%, Mn0.8%, Cr8.0%, Mo2.5%, V0.10%, Co5%, Re0.25%, the balance is Fe and unavoidable impurities. A kind of wear-resistant liner alloy steel of this embodiment is processed by the following heat treatment process:

[0041] 1. Complete annealing: heat the wear-resistant liner alloy steel to 850°C, keep it warm for 200 minutes, then cool slowly, anneal and cool to about 600°C, and leave the furnace for air cooling;

[0042] 2. Surface boronizing: Put the wear-resistant lining plate treated in step 1 into a salt bath boronizing agent composed of anhydrous borax plus boron carbide, ferroboron or silicon carbide, heat...

Embodiment 3

[0048] A wear-resistant liner alloy steel according to this embodiment, its chemical composition mass percentage is: C0.4-0.5%, Al1.1-1.7%, Mn0.8-1.1%, Cr8.0-11.2%, Mo2. 5~3.0%, V0.1~0.3%, Co5~7%, Re0.25~0.35%, the balance is Fe and unavoidable impurity, specifically in this embodiment, it is composed of the following mass percentages: C0.5% , Al1.7%, Mn1.1%, Cr11.2%, Mo3.0%, V0.30%, Co7%, Re0.35%, the balance is Fe and unavoidable impurities. A wear-resistant liner alloy steel of this embodiment is treated by the following heat treatment process:

[0049] 1. Complete annealing: heat the wear-resistant liner alloy steel to 850°C, keep it warm for 200 minutes, then cool slowly, anneal and cool to about 600°C, and leave the furnace for air cooling;

[0050] 2. Surface boronizing: Put the wear-resistant lining plate treated in step 1 into a salt bath boronizing agent composed of anhydrous borax plus boron carbide, ferroboron or silicon carbide, heat to 900°C for 4 hours, and the...

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Abstract

The invention discloses wear-resistant liner plate alloy steel and belongs to the field of wear-resistant liner plates. The alloy steel comprises, by mass percentage, 0.4-0.5% of C, 1.1-1.7% of Al, 0.8-1.1% of Mn, 8.0-11.2% of Cr, 2.5-3.0% of Mo, 0.1-0.3% of V, 5-7% of Co and the balance Fe and unavoidable impurities. The heat treatment process of the alloy steel comprises the steps of full annealing, surface boriding, graded quenching, water cooling after multiple times of high-temperature tempering and finally cobalt-base alloy fusion welding on the formed wear-resistant liner plate alloy steel. The hardness, strength and wear resistance of the treated wear-resistant linear plate alloy steel are improved greatly, and the service life of the treated wear-resistant linear plate alloy steelis multiplied.

Description

technical field [0001] The invention belongs to the field of wear-resistant liners, and more specifically relates to an alloy steel for wear-resistant liners. Background technique [0002] Wear-resistant alloy steel is a kind of special performance steel used in wear conditions. Its main feature is that it has high strength, hardness, toughness and wear resistance under wear conditions. At present, there are many types of wear-resistant alloy steel, the most commonly used It is high manganese steel and low and medium alloy wear-resistant steel. [0003] High manganese steel has the characteristics of high toughness, low strength and low hardness. It produces wear resistance through impact hardening. If the impact force is low, the wear resistance is very low. When the impact force is high, the wear parts will be deformed and scrapped. Some low and medium alloy wear-resistant steels have better toughness and lower impact wear than high-manganese steels, but their hardenabili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/06C22C38/04C22C38/22C22C38/24C22C38/30C21D1/26C21D1/18C23C8/70
CPCC21D1/18C21D1/26C22C38/005C22C38/04C22C38/06C22C38/22C22C38/24C22C38/30C23C8/70
Inventor 杨明
Owner MAANSHAN SHENGLEI WEAR RESISTANT ALLOY MFG