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Wear-resistant alloy spring steel and thermal treatment process thereof

A spring steel and wear-resistant technology, applied in the field of alloy steel, can solve the problems of low hardness and inability to effectively meet the hardness requirements of high-level wear-resistant alloy spring steel, so as to overcome low hardness, high cost performance, and improve wear resistance performance effect

Inactive Publication Date: 2016-10-26
ANHUI HONGQIAO METAL MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because it does not contain or contain a very small amount of carbide-forming alloying elements such as Cr, Mo, V, etc., the hardness is low, and it cannot effectively meet the hardness requirements of high-grade wear-resistant alloy spring steel.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of wear-resistant alloy spring steel, in the heat treatment process, the tempering temperature is 610°C, the holding time is 6-8h, air-cooled; the quenching temperature is 800°C, the holding time is 50min-100min, and water-cooling. The composition and ratio of alloy spring steel are: C: 0.3800%, Cu: 0.3200%, Mn: 0.1600%, Si: 3.8000%, Cr: 2.7000%, P: 0.0330%, S: 0.0330%, Ni: 0.3000% , Al: 0.0300%, V: 0.0060, B: 0.0200-1.1000%, and the balance is Fe and unavoidable impurities.

Embodiment 2

[0023] A kind of wear-resistant alloy spring steel, in the heat treatment process, the tempering temperature is 605°C, the holding time is 6-8h, air-cooled; the quenching temperature is 820°C, the holding time is 50min-100min, and water-cooling. The composition and ratio of alloy spring steel are: C: 0.3700%, Cu: 0.2900%, Mn: 0.1600%, Si: 2.8000%, Cr: 2.7000%, P: 0.0050%, S: 0.0430%, Ni: 0.4000% , Al: 0.0220%, V: 0.0060%, B: 0.0800%, Be: 0.0600%, and the balance is Fe and unavoidable impurities.

Embodiment 3

[0025] A kind of wear-resistant alloy spring steel, in the heat treatment process, the tempering temperature is 600°C, the holding time is 6-8h, air-cooled; the quenching temperature is 830°C, the holding time is 50min-100min, and water-cooling. The composition and ratio of alloy spring steel are: C: 0.3900%, Cu: 0.3600%, Mn: 0.1900%, Si: 3.4200%, Cr: 2.7000%, P: 0.0430%, S: 0.0230%, Ni: 0.3000% , Al: 0.0088%, V: 0.0050%, Mo: 0.0050%, Sr: 0.0031%, and the balance is Fe and unavoidable impurities.

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Abstract

The invention discloses wear-resistant alloy spring steel and a thermal treatment process thereof. The thermal treatment process comprises the following steps: performing air cooling, wherein the tempering temperature is 600+ / -10 DEG C and the insulating time is 6-8h; and performing water cooling, wherein the quenching temperature is 800-830 DEG C and the insulating time is 50-100min. The spring steel comprises the following components in percentages: 0.3600-0.5500% of C, 0.2600-0.4500% of Cu, 0.1500-2.200% of Mn, 0.8000-5.4200% of Si, 0.7000-3.8000% of Cr, 0.030-0.0800% of P, 0.0030-0.0500% of S, 0.3000-0.5000% of Ni, 0.0008-0.0500% of Al, 0.0020-0.0100% of V and the balance of Fe and inevitable impurities. The wear-resistant alloy spring steel disclosed by the invention has an excellent wear-resisting performance, the consumption of materials is reduced, and the production efficiency is enhanced.

Description

technical field [0001] The invention relates to an alloy steel, in particular to a wear-resistant alloy spring steel and its heat treatment process. Background technique [0002] A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials are deformed under the action of external force, and return to their original shape after the external force is removed. Also known as "spring". Spring is an important component of mechanization and automation, and is widely used in aerospace, machinery manufacturing, transportation, instrumentation and other industries, and is generally made of spring steel. [0003] According to the GB / T13304 standard, spring steel is divided into non-alloy spring steel (carbon spring steel) and alloy spring steel according to its chemical composition. Among them, alloy spring steel has a wide application prospect because the addition of alloy elements significantly improves the relaxation resistance, toughness, hardenab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/18C22C38/04C22C38/02C22C38/16C22C38/08C22C38/06C22C38/12C22C38/60C21D1/18C21D9/02
CPCC22C38/18C21D1/18C21D9/02C22C38/002C22C38/008C22C38/02C22C38/04C22C38/06C22C38/08C22C38/12C22C38/16C22C38/32C22C38/60
Inventor 余昌国戚利军
Owner ANHUI HONGQIAO METAL MFG
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