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Preparation method of copper-nickel alloy sheet part by resin electroplating and atmosphere reduction

A technology of copper-nickel alloy and parts, which is applied in the field of production technology of metal alloy thin plate parts, can solve the problems of high processing cost and complicated process

Inactive Publication Date: 2014-10-01
陕西华夏粉末冶金有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nickel-copper alloy products have excellent welding performance, high temperature resistance, corrosion resistance and mechanical properties, and are widely used in machinery, oil fields, chemical and nuclear industries and other fields. At present, the manufacture of nickel-copper alloy sheets mainly uses alloy sheets for reprocessing or pressing and stretching , the process is complex, the processing cost is high, and thin plate parts with complex shapes still need to be processed to complete, which is a difficult problem that cannot be solved by the existing technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The production process of this example is realized like this:

[0013] The first step of substrate preparation: use 0.07mm resin fiber film, after anti-static and conductive treatment, conduct insulation coating treatment on non-electroplating parts;

[0014] The second step of electroplating: according to the required alloy element ratio Cu:Ni=1:3, perform composite electroplating, cleaning, and drying;

[0015] Step 3 Reduction: place the electroplated film on a silicon nitride backing plate, and carry out reduction treatment at 700°C for 30 minutes in a protective atmosphere of mixed gas-liquid nitrogen gas 60% and ammonia decomposition gas 40%, and then cool it out of the furnace ;

[0016] The fourth step of follow-up processing: according to the shape requirements of the part, the cutting process is carried out to make it meet the design requirements.

[0017] Test evaluation results of this example, the tensile strength of the material is 404MPa; the elongation...

Embodiment 2

[0019] The production process of this example is realized like this:

[0020] The first step of substrate preparation: use 0.085mm resin fiber film, after anti-static and conductive treatment, conduct insulation coating treatment on non-electroplating parts;

[0021] The second step of electroplating: according to the required alloy element ratio Cu:Ni=1.1:3.2, perform composite electroplating, clean and dry.

[0022] The third step of reduction: place the electroplated film on the silicon nitride backing plate, under the protective atmosphere of mixed gas-liquid nitrogen gas 60%, ammonia decomposition gas 40%, carry out reduction treatment at 750°C for 35 minutes, cool out of the furnace .

[0023] The fourth step of follow-up processing: according to the shape requirements of the part, the cutting process is carried out to make it meet the design requirements.

[0024] Test evaluation results of this example, the tensile strength of the material is 428MPa; the elongation i...

Embodiment 3

[0026] The production process of this example is realized like this:

[0027] The first step of substrate preparation: use 0.10mm resin fiber film, after anti-static and conductive treatment, conduct insulation coating treatment on non-electroplating parts;

[0028] The second step of electroplating: according to the required alloy element ratio Cu:Ni=1.2:3.5, perform composite electroplating, clean and dry.

[0029] Step 3 Reduction: place the electroplated film on a silicon nitride backing plate, and perform reduction treatment at 800°C for 40 minutes in a protective atmosphere of mixed gasliquid nitrogen gas 60%, ammonia decomposition gas 40%, and cool baked;

[0030] The fourth step of follow-up processing: according to the shape requirements of the part, the cutting process is carried out to make it meet the design requirements.

[0031] Test evaluation results of this example, the tensile strength of the material is 418MPa; the elongation is 10.1%.

[0032] The resul...

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Abstract

The invention relates to a preparation method of a copper-nickel alloy sheet part by resin electroplating and atmosphere reduction, which comprises the following steps: carrying out antistatic treatment on a resin fiber film, carrying out insulation coating treatment on the non-electroplating part, carrying out composite electroplating on the resin fiber film according to the alloy element Cu / Ni ratio of (1-1.2):(3-3.5), cleaning, and blow-drying; putting the electroplated film on a silicon nitride backing plate, carrying out reduction treatment at 700-800 DEG C in a protective atmosphere for 30-40 minutes, cooling and discharging; and finally, cutting according to the part shape requirement to satisfy the design requirements. By adopting the copper-nickel alloy material formula, the tensile strength of the material is greater than 400 MPa, and the elongation percentage is greater than 10%.

Description

technical field [0001] The invention relates to a production process of metal alloy sheet parts, in particular to a method for preparing copper-nickel alloy sheet parts with resin electroplating and atmosphere reduction. Background technique [0002] Nickel-copper alloy products have excellent welding performance, high temperature resistance, corrosion resistance and mechanical properties, and are widely used in machinery, oil fields, chemical and nuclear industries and other fields. At present, the manufacture of nickel-copper alloy sheets mainly uses alloy sheets for reprocessing or pressing and stretching , the process is complicated, the processing cost is high, and the thin plate parts with complex shapes still need to be processed to complete, which is a problem that cannot be solved by the existing technology. Contents of the invention [0003] In order to improve the deficiencies of the existing alloy thin plate parts forming technology, the present invention provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/02C25D5/56C25D7/06
Inventor 王君林思聪罗朝欣王艺璇侯俊景博高源
Owner 陕西华夏粉末冶金有限责任公司