spring wire

A technology of spring wire and chemical composition, applied in the field of spring wire, can solve the problems of poor performance of wire rod, different spring lengths, unstable tension, etc.

Active Publication Date: 2016-05-04
WUXI XINGCHENG HUAXIN STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Stainless steel spring wire is widely used in spray springs, high temperature springs, battery welding, stainless steel compression springs, tension spring torsion springs, high-strength springs, high fatigue springs, medical springs, non-magnetic springs, braided springs, etc. High-end products all use imported wire rods, and domestic wire rods can only be used in lower-end industries. The main reason is that the performance of the wire rod is not good, the length of the spring after the customer processes it is different, and the tension is unstable.

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[0014] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0015] A spring wire, its chemical composition and weight percentage are: C: 0.06%~0.09%, Cr: 18.0%~19.0%, Mn≤2.0%, N: 0.08%~0.12%, Si≤1.00%, Ni: 8.0 ~9.0%, P≤0.040%, S≤0.015%, Mo≤0.5%, Cu≤0.5%, the balance is Fe and non-removable impurities.

[0016] The optimized embodiment is a spring wire whose chemical composition and weight percentage are: C: 0.08%, Si: 0.36%, P: 0.031%, S: 0.002%, N: 0.105%, Ni: 8.06%, Cr: 18.72%, Mo: 0.11%, Cu: 0.34%, Mn: 1.26%, and the balance is Fe and unremovable impurities.

[0017] The current strength of the spring wire in the present invention is 910mpa, 0.2% yield strength: 501, and the elongation rate is 36%. Its strength...

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Abstract

The invention discloses a spring wire comprising the chemical composition by weight percentage: 0.06%-0.09% of C, 18.0%-19.0% of Cr, not more than 2.0% of Mn, 0.08%-0.12% of N, not more than 1.00% of Si, 8.0-9.0% of Ni, not more than 0.040% of P, not more than 0.015% of S, not more than 0.5% of Mo, not more than 0.5% of Cu, and the balance Fe and non-removable impurities. Through increasing the N content, the strength and the toughness of the spring wire both can accord with standards.

Description

technical field [0001] The invention relates to a spring wire. Background technique [0002] Stainless steel spring wire is widely used in spray springs, high temperature springs, battery welding, stainless steel compression springs, tension spring torsion springs, high-strength springs, high fatigue springs, medical springs, non-magnetic springs, braided springs, etc. High-end products all use imported wire rods, and domestic wire rods can only be used by lower-end industries. The main reason is that the performance of the wire rod is not good, the length of the spring after the customer processes it is different, and the tension is unstable. Contents of the invention [0003] The purpose of the present invention is to overcome the defects in the prior art and provide a spring wire with high strength and good toughness. [0004] In order to achieve the above object, the technical solution of the present invention is to provide a spring wire, a spring wire, its chemical c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/58C22C38/44
Inventor 陈军葛祥忠陈信宏潘生根
Owner WUXI XINGCHENG HUAXIN STEEL
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