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High-strength extra-high-voltage spring contact finger and processing technology thereof

A spring contact finger and processing technology, which is applied in the manufacture of tools, contact parts, contact parts, etc., can solve the problems affecting the normal use of the spring contact finger, the strength and elasticity of the spring contact finger, etc., to improve the effect of precipitation hardening, Guaranteed high strength and elastic properties, the effect of improving strength

Active Publication Date: 2021-12-31
江阴金湾合金材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]When the existing beryllium bronze spring contacts are used in UHV equipment, the strength and elasticity of the spring contacts will decrease under high temperature conditions, seriously affecting the spring contacts. normal use

Method used

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  • High-strength extra-high-voltage spring contact finger and processing technology thereof
  • High-strength extra-high-voltage spring contact finger and processing technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The invention provides a high-strength ultra-high voltage spring contact finger, which includes: 0.40% beryllium, 2.40% cobalt, 1.80% nickel, 0.30% rare earth silicon aluminum alloy, the sum of impurities < 0.05%, and the rest It is copper; the rare earth silicon aluminum alloy includes: 0.94% rare earth lanthanum, 0.02% silicon, 9.60% titanium, and 89.44% aluminum in terms of weight percentage;

[0026] A processing technology for a high-strength ultra-high voltage spring contact finger, the specific processing steps are as follows:

[0027] Step 1: weighing the rare earth lanthanum, silicon, titanium, and aluminum in the raw materials of beryllium, cobalt, nickel, copper, and rare earth silicon-aluminum alloy according to the above weight ratio;

[0028] Step 2: Vacuum smelt the beryllium, cobalt, nickel, and copper in step 1, then add the rare earth silicon-aluminum alloy in step 1, melt and blend, keep warm for 60-90 minutes, cast and anneal, and make spring contact...

Embodiment 2

[0034] The difference from Example 1 is that it includes: 0.70% beryllium, 2.70% cobalt, 2.40% nickel, 0.50% rare earth silicon aluminum alloy, the sum of impurities < 0.05%, and the rest is copper; the rare earth The silicon-aluminum alloy includes: 1.04% of rare earth lanthanum, 0.04% of silicon, 10.60% of titanium, and 88.32% of aluminum in terms of weight percentage.

Embodiment 3

[0036] The difference from Examples 1-2 is that it includes: 0.55% beryllium, 2.55% cobalt, 2.10% nickel, 0.40% rare earth silicon aluminum alloy, the sum of impurities < 0.05%, and the rest is copper; The rare earth silicon aluminum alloy includes: 0.99% rare earth lanthanum, 0.03% silicon, 10.10% titanium, and 88.88% aluminum according to weight percentage.

[0037]Take the high-strength UHV spring contact finger prepared in the above-mentioned Examples 1-3 and the high-strength UHV spring contact finger of the control group 1, the high-strength UHV spring contact finger of the control group 2, and the high-strength UHV spring contact finger of the control group 3. The UHV spring contact finger, the high-strength UHV spring contact finger of control group 4 and the high-strength UHV spring contact finger of control group 5, the high-strength UHV spring contact finger of control group 1 has no nickel compared with Example 3, Compared with Example 3, the high-strength UHV spri...

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Abstract

The invention discloses a high-strength extra-high-voltage spring contact finger and a processing technology thereof, and particularly relates to the technical field of beryllium-copper spring contact fingers. The high-strength extra-high-voltage spring contact finger comprises beryllium, cobalt, nickel, copper and rare earth silicon-aluminum alloy. The high strength and elasticity of the spring contact finger can be effectively guaranteed, the high strength and elasticity of the spring contact finger when the spring contact finger is used in a high-temperature environment can be effectively improved, and normal use of the spring contact finger in extra-high-voltage is guaranteed; by adding nickel, the high strength, hardness and wear resistance of the spring contact finger can be effectively improved; nickel and silicon can form an intermetallic compound to reinforce the spring contact finger; the rare earth lanthanum can effectively conduct deoxidation and desulfurization treatment on the beryllium-copper alloy and refine the structure of the beryllium-copper alloy; and a Ti / Al3Ti metal layered composite material and a Ni3Al phase with high elastic modulus can be formed in the beryllium-copper alloy, so that the high strength, high modulus and ultra-high energy absorption protection performance of the beryllium-copper alloy can be effectively improved, and the high elastic performance of the spring contact finger can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of beryllium copper spring contact fingers, more specifically, the invention relates to a high-strength ultra-high voltage spring contact finger and its processing technology. Background technique [0002] The spring contact finger is a special spring that can transmit high currents in a small space and can also be used as a purely mechanical connection. The spring contact fingers are suitable for use in various static or dynamic medium and high pressure environments. At present, the spring finger material is mainly made of high-quality beryllium bronze or copper-chromium-zirconium alloy. Beryllium bronze is a kind of non-ferrous alloy elastic material with excellent comprehensive performance. It is divided into high-strength type and high-conductivity type. Beryllium bronze is stronger, but its conductivity is lower. UHV refers to the voltage level of ±800 kV and above direct current and 1000 kV and above...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06C22C21/00C22C1/03C22F1/08C21D9/00H01R13/02H01R43/16B23P15/00
CPCC22C9/06C22C21/003C22C1/03C22F1/08C21D9/0075B23P15/00H01R13/02H01R43/16
Inventor 赵星夏金文陈勋
Owner 江阴金湾合金材料有限公司
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