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Chemical nickel plating method of aluminum base composite material

An aluminum-based composite material and electroless nickel plating technology, which is applied in the direction of liquid chemical plating, metal material coating process, coating, etc., can solve the problems of high application cost and narrow application range, and achieve short plating time and high reliability. The effect of strong repeatability and dense internal organization

Inactive Publication Date: 2017-10-24
허난징타이에어로우스페이스하이테크머터리얼스테크놀로지컴퍼니리미티드
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high application cost and narrow application range in the existing electroless nickel plating technology on the surface of aluminum matrix composite materials, and provide a kind of electroless nickel plating method for aluminum matrix composite materials

Method used

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  • Chemical nickel plating method of aluminum base composite material
  • Chemical nickel plating method of aluminum base composite material
  • Chemical nickel plating method of aluminum base composite material

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specific Embodiment approach 1

[0015] Specific Embodiment 1: This embodiment is an electroless nickel plating method for aluminum-based composite materials, which is completed according to the following steps; use ammonia water to adjust the pH value of the electroless plating solution to 9-11, and then the aluminum-based composite material When the temperature of the electroless plating solution is 70-90°C, the plating is continued for 40min-120min, and the electroless nickel plating is completed; the solvent of the electroless plating solution is deionized water, and the solute is NiSO 4 ·6H 2 O, NaH 2 PO 2 ·H 2 O, C 6 h 5 Na 3 o 7 2H 2 O and NH 4 Cl, and NiSO in electroless plating solution 4 ·6H 2 The concentration of O is 20g / L~35g / L, NaH 2 PO 2 ·H 2 O concentration is 20g / L~30g / L, C 6 h 5 Na 3 o 7 2H 2 The concentration of O is 25g / L~40g / L, NH 4 The concentration of Cl is 50g / L~60g / L.

[0016] The aluminum-based composite material described in this embodiment is a silicon carbide p...

specific Embodiment approach 2

[0018] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the specific process of an electroless nickel plating method for an aluminum-based composite material is as follows: first use acetone to clean and degrease the aluminum-based composite material, and then use deionized water Wash, then pickle or alkali wash, wash again with deionized water, then adjust the pH value of the electroless plating solution to 9~11 with ammonia water, and continue plating for 40min at the temperature of the electroless plating solution at 70°C~90°C ~120min, after the nickel plating is completed, wash it with deionized water and dry it, and the electroless nickel plating for welding aluminum matrix composite materials is completed. Others are the same as the first embodiment.

[0019] In order to ensure the amount of electroless nickel plating, the surface of the part to be plated that is in contact with the immersion plating solution must be the base material itself,...

specific Embodiment approach 3

[0021] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that when the aluminum-based composite material is silicon carbide particle-reinforced aluminum-based composite material, sulfuric acid with a mass fraction of 15% to 25% is used for acidification. Washing, pickling time is 3min ~ 10min. Others are the same as those in Embodiment 1 or 2.

[0022] The silicon carbide particle-reinforced aluminum-based composite material in this embodiment is 55%-65% SiCp / A356 or 55%-65% SiCp / 6061.

[0023] Pickling is to immerse the metal workpiece in an acid solution to remove the oxide film of the metal. In order to have a better combination between the electroless nickel plating substrate and the nickel layer, sulfuric acid is generally used. Sulfuric acid has a strong ability to dissolve metal substrates, and has a better exfoliation effect on removing oxide scales, and the acid mist is small. Its concentration is controlled at 15% to 25%, the most suitab...

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Abstract

The invention relates to a chemical nickel plating method of an aluminum base composite material, and solves the problems of high implementation cost and narrower application range in traditional surface chemical nickel plating technologies of silicon carbide particle reinforced aluminum base composite material and high silicon aluminum materials. The chemical nickel plating method comprises the following steps: the pH value of chemical plating liquid is adjusted within 9-11; the plating is continued at the temperature of the chemical plating liquid of 70-90 DEG C to finish the chemical nickel plating; a solvent of the chemical nickel plating is de-ionized water; and solutes are NiSO4.6H2O, NaH2PO2.H2O, C6H5Na3O7.2H2O and NH4Cl. The chemical nickel plating method has the advantages of: (1) excellent appearance of a nickel plating layer, compact internal structure, and high bonding force; (2) simple process, high repeatability, short plating time, and no need of external direct-current power supply; (3) low nickel plating cost; and (4) no corrosion to welding lines, glass components and the like. The chemical nickel plating method is mainly used for chemical nickel plating.

Description

technical field [0001] The invention relates to an aluminum matrix composite material electroless nickel plating method. Background technique [0002] Due to their unique physical and chemical properties, aluminum and aluminum alloys are widely used in many fields such as electronics, aerospace, and national defense. However, due to their low hardness, poor wear resistance and corrosion resistance, the scope of application is limited. Therefore, aluminum matrix composites (adding reinforcing phases to the aluminum alloy matrix) have attracted more and more attention and been widely used because of their high specific strength, specific stiffness, high wear resistance and dimensional stability. Especially in the electronics industry, high-volume silicon carbide particle-reinforced aluminum-based composites and high-silicon-aluminum materials are particularly popular because of their light weight, good thermal conductivity, and low expansion coefficient. However, due to the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/36C23C18/18
CPCC23C18/36C23C18/1824
Inventor 牛济泰张璐璐冯建广
Owner 허난징타이에어로우스페이스하이테크머터리얼스테크놀로지컴퍼니리미티드
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