Nickel plating method of powder metallurgy porous material

A porous material, powder metallurgy technology, applied in the field of PVD surface treatment, can solve the problems of poor adhesion between the nickel layer and the substrate, corrosion of parts, etc., to improve adhesion and film quality, increase cleanliness, and high film quality Effect

Active Publication Date: 2013-03-13
CHINA HANGFA SOUTH IND CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0008] The invention provides a nickel-plating method for powder metallurgy porous materials to solve the technical problems of easy internal co

Method used

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  • Nickel plating method of powder metallurgy porous material

Examples

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Example Embodiment

[0032] Example 1

[0033] Select powder metallurgy porous material parts as the parts to be plated.

[0034] Anhydrous ethanol was used as the cleaning solvent, and the parts to be plated were ultrasonically cleaned, the ultrasonic power was 1.5kW, and the ultrasonic frequency was 10kHz. Dry after ultrasonic cleaning.

[0035] Put the parts to be plated into the furnace, evacuate the furnace, fill with argon gas to make the pressure of argon gas reach 2Pa, apply a 1000V bias electric field to ionize the argon gas into argon ions, and the argon ions bombard the surface of the parts to be plated, Perform ion cleaning.

[0036] Nickel is plated on the surface of the parts to be plated by arc ion plating. The arc current used is 80A, the voltage is first set to 800~1000V, the inert gas pressure in the furnace is controlled at 0.1~0.2Pa, and nickel is plated on the surface of the powder metallurgy porous material. bottom layer; then set the voltage to 50-800V, control the inert ...

Example Embodiment

[0037] Example 2

[0038] Select powder metallurgy porous material parts as the parts to be plated.

[0039] Using absolute ethanol as the cleaning solvent, the parts to be plated are ultrasonically cleaned, the ultrasonic power is 2.0kW, and the ultrasonic frequency is 10kHz. Dry after ultrasonic cleaning.

[0040] Put the parts to be plated into the furnace, evacuate the furnace, fill with argon gas to make the pressure of argon gas reach 1Pa, apply a 900V bias electric field to ionize the argon gas into argon ions, and the argon ions bombard the surface of the parts to be plated, Perform ion cleaning.

[0041] Nickel is plated on the surface of the parts to be plated by arc ion plating, the arc current is set to 70A, the voltage is first set to 800-1000V, the inert gas pressure in the furnace is controlled at 0.1-0.2Pa, and nickel is plated on the surface of the powder metallurgy porous material. bottom layer; then set the voltage to 50-800V, control the inert gas pressure...

Example Embodiment

[0042] Example 3

[0043] Select powder metallurgy porous material parts as the parts to be plated.

[0044] Anhydrous ethanol was used as the cleaning solvent, and the parts to be plated were ultrasonically cleaned, the ultrasonic power was 1.8kW, and the ultrasonic frequency was 15kHz.

[0045] Put the parts to be plated into the furnace, evacuated in the furnace, filled with argon gas to make the pressure of argon gas reach 3Pa, applied an electric field of 1100V bias to ionize the argon gas into argon ions, and the argon ions bombard the surface of the parts to be plated, Perform ion cleaning.

[0046] Nickel is plated on the surface of the parts to be plated by arc ion plating. The arc current used is 100A, the voltage is first set to 800~1000V, the inert gas pressure in the furnace is controlled at 0.1~0.2Pa, and nickel is plated on the surface of the powder metallurgy porous material. bottom layer; then set the voltage to 50-800V, control the inert gas pressure in the...

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Abstract

The invention provides a nickel plating method of a powder metallurgy porous material. The method comprises the following steps: A, utilizing a volatile organic solvent as a washing solvent to carry out ultrasonic washing on the powder metallurgy porous material; B, placing the powder metallurgy porous material into inert gas and applying an electric field to ionize the inert gas into inert gas ions; bombarding the surface of the powder metallurgy porous material by the inert gas ions; and C, adopting an electric arc ion plating method to plate nickel on the surface of the powder metallurgy porous material. According to the nickel plating method disclosed by the invention, the problems that the powder metallurgy porous material is contacted with corrosive liquid in the nickel plating process and the inner part is corroded due to that the liquid remains in pores of a base material are basically solved; and the problem that the inner part of the powder metallurgy porous material is corroded by that a washing solvent remains is further solved, the combining force of a plated nickel layer is good and the quality of a film layer is good.

Description

technical field [0001] The invention relates to the technical field of PVD surface treatment, in particular to a nickel plating method for powder metallurgy porous materials. Background technique [0002] Powder metallurgy porous material parts are used in aviation, shipbuilding, machinery manufacturing and other fields. In order to meet the wettability requirements of parts during welding, as well as reduce mutual friction between parts, reduce parts matching clearance to improve shock absorption performance, etc., it is necessary to use powder metallurgy The surface of the porous material part is plated with a nickel layer. [0003] The nickel layer is plated by the traditional electroplating method. Due to the high surface porosity of powder metallurgy porous material parts (generally above 15%) and the non-dense internal structure, there are the following disadvantages: [0004] (1) The electroplating bath used for nickel electroplating is mostly corrosive solution, whi...

Claims

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Application Information

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IPC IPC(8): C23C14/32C23C14/02
Inventor 吕亮谌曲平汪云程张小水邹阳
Owner CHINA HANGFA SOUTH IND CO LTD
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