CN102277564A - Process for chemical nickel-phosphorus alloy plating on surface of aluminum and silicon carbide composite material - Google Patents

Process for chemical nickel-phosphorus alloy plating on surface of aluminum and silicon carbide composite material Download PDF

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Publication number
CN102277564A
CN102277564A CN 201110259096 CN201110259096A CN102277564A CN 102277564 A CN102277564 A CN 102277564A CN 201110259096 CN201110259096 CN 201110259096 CN 201110259096 A CN201110259096 A CN 201110259096A CN 102277564 A CN102277564 A CN 102277564A
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nickel
composite material
silicon carbide
deionized water
workpiece
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CN 201110259096
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CN102277564B (en
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舒阳会
胡娟
刘韵妍
万绍平
海春英
秦国超
胡盛青
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Hunan Hangtian Chengyuan Precision Machinery Co Ltd
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Hunan Hangtian Chengyuan Precision Machinery Co Ltd
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Abstract

The invention discloses a process for chemical nickel-phosphorus alloy plating on the surface of an aluminum and silicon carbide composite material, which comprises the following steps: pretreating the surface of a workpiece, removing oil, roughening, activating, plating and performing heat treatment, wherein chemical plating solution consists of a nickel salt, a reducer, a complexing agent, a stabilizer, a brightener and deionized water. The process disclosed by the invention is simple, convenient for operation, low in cost, high in efficiency, widely applicable, environment-friendly and capable of realizing industrial production; and the obtaining plating is bright, flat, uniform and compact.

Description

A kind of aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology
Technical field
The present invention relates to a kind of chemical plating nickel-phosphorus alloy technology, especially relate to a kind of aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology.
Background technology
Aluminum silicon carbide composite material except that requiring to have high heat conduction and the low thermal coefficient of expansion character, also requires to have weldability when being applied to the Electronic Packaging field; When being applied to optical system and making speculum, except that claimed structure is stable, also require to have thicker coating; Therefore, need be on aluminum silicon carbide composite material metal-coated membrane.
The aluminum silicon carbide composite material chemical nickel phosphorus plating technology of present domestic comparative maturity mainly only is directed to the high-volume fractional aluminum silicon carbide composite material, and at lactic acid system chemical nickel phosphorus plating, pH is controlled at 4.5, and phosphorus content is 5.8%; The plating process that next has when preparing speculum at aluminum silicon carbide composite material adopts and soaks zinc 2 times, behind the alkaline chemical nickel-plating phosphorus, acid chemical plating nickel phosphorus again, pH is controlled at 4~4.5, and phosphorus content reaches more than 11% in the coating, plating increases anti-film again, and technology is complicated, the cost height.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of technology simple, and cost is low, aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology applied widely.
The technical solution adopted for the present invention to solve the technical problems is: a kind of aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology comprises the steps:
(1) workpiece surface pre-treatment to be plated: with workpiece surface polishing to be plated, place the light polishing machine of salic medium, light decorations 15~45min, and clean;
(2) oil removing: will place that to contain massfraction be 8~15% sodium silicate aqueous solution through the workpiece to be plated after step (1) is handled, and clean 20~40min, and clean with deionized water again, and dry up;
(3) alligatoring: will be through the solution soaking of the workpiece to be plated after step (2) processing with hydrofluoric acid, nitric acid, hydrogen peroxide and deionized water composition, in the described soaking solution, the volume ratio of hydrofluoric acid, nitric acid, hydrogen peroxide and deionized water is (0.1~0.4): (1~1.5): (1~1.5): (1~1.5), soak 8~15min, clean with deionized water again, dry up;
(4) activation: the activated solution that workpiece to be plated that will be after step (3) alligatoring is formed with nickel acetate, inferior sodium phosphate, dehydrated alcohol and deionized water soaks, in the described activated solution, the mass ratio of nickel acetate, inferior sodium phosphate and dehydrated alcohol is 1:(0.8~1.2): (12~18), the amount of deionized water is 3~5 times of nickel acetate, soak 10~30min, clean with deionized water again, dry up; Then at 150~200 ℃ of thermal treatment 15~25min;
(5) plating: will place the chemical plating fluid of forming by nickel salt, reductive agent, complexing agent, stablizer, buffer reagent and deionized water through the workpiece to be plated after step (4) activation, in the described chemical plating fluid, nickel salt 20~30g/L, reductive agent is 15~25g/L, complexing agent is to contain boric acid in 15~60ml/L(such as the complexing agent, then the boric acid measure unit is " g/l "), stabiliser content is 1~10mg/L, buffer reagent is 0.5~2g/L; With ammoniacal liquor control chemical plating fluid pH value is 4.0~4.5, heating in water bath to 70~95 ℃, and plating speed is 5~12 μ m/h (plating time is definite according to required thickness of coating);
(6) thermal treatment: will place in the process furnace through the workpiece after step (5) plating, be heated to 200~300 ℃, behind constant temperature 30~90min, cooling.
Further, step (2), described cleaning can be adopted ultrasonic cleaning.
Further, step (5), described nickel salt preferably sulfuric acid nickel or nickel acetate.
Further, step (5), the preferred inferior sodium phosphate of described reductive agent.
Further, step (5), one or more in the preferred lactic acid of described complexing agent, propionic acid, acetate, the boric acid; At least three kinds in lactic acid, propionic acid, acetate, the boric acid more preferably.
Further, step (5), the preferred Pb of described stablizer 2+Or thiocarbamide.
Further, step (5), preferred sodium-acetate of described buffer reagent or Sodium Fluoride.
Technology of the present invention is simple, and is easy to operate, and cost is low, and the efficient height is applied widely, and environmentally safe can be realized suitability for industrialized production, gained coating light, smooth, even, fine and close, and by observation by light microscope, coating does not have foaming, peels off and phenomenons such as crackle.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
At carborundum content is that chemical plating nickel-phosphorus alloy is carried out on 36% aluminum silicon carbide composite material surface, and its step is as follows:
(1) workpiece pre-treatment to be plated: with workpiece to be plated (carborundum content is 36% aluminum silicon carbide composite material workpiece) surface finish, place the light polishing machine of salic medium, light decorations 30min, and clean;
(2) oil removing: will place through the workpiece to be plated after step (1) is handled to contain the aqueous solution that massfraction is 10% water glass, ultrasonic cleaning 25min cleans with deionized water again, dries up;
(3) alligatoring: will be through the solution soaking of the workpiece to be plated after step (2) processing with hydrofluoric acid, nitric acid, hydrogen peroxide and deionized water composition, in the described soaking solution, hydrofluoric acid, nitric acid, hydrogen peroxide and deionized water volume ratio are 0.1:1:1:1, soak 10 min, clean with deionized water again, dry up;
(4) activation: the activated solution that workpiece to be plated that will be after step (3) alligatoring is formed with nickel acetate, inferior sodium phosphate, dehydrated alcohol and deionized water soaks, in the described activated solution, the mass ratio of nickel acetate, inferior sodium phosphate and dehydrated alcohol is 1:1:15, the amount of deionized water is 3 times of nickel acetate, soak 20 min, clean with deionized water again, dry up; At 170 ℃ of following thermal treatment 20min;
(5) plating: will place the chemical plating fluid of forming by single nickel salt, inferior sodium phosphate, lactic acid, boric acid, propionic acid and lead chloride, Sodium Fluoride and deionized water through the workpiece to be plated after step (4) activation, in the described chemical plating fluid, the content of single nickel salt is 25g/L, inferior sodium phosphate 15g/L, lactic acid is 25ml/L, and boric acid is 20g/L, and propionic acid is 10ml/L, lead chloride is 1mg/L, and Sodium Fluoride is 1g/L; With ammoniacal liquor control chemical plating fluid pH value is 4.5, and heating in water bath is 85 ℃, plating 8h;
(6) thermal treatment: will place in the process furnace through the plating piece after step (5) is handled, be heated to 250 ℃, behind the constant temperature 60min, cooling.
The present embodiment thickness of coating is 60 μ m, coating light, smooth, even, fine and close, and by observation by light microscope, coating do not have foaming, peel off the phenomenon with crackle; Carried out the soldering test to plating the back product under 265 ℃, it is smoothly firm that postwelding detects weld seam, satisfies the weldability requirement of Electronic Packaging.
Embodiment 2: at carborundum content is that chemical plating nickel-phosphorus alloy is carried out on 70% aluminum silicon carbide composite material surface, and its step is as follows:
(1) workpiece pre-treatment to be plated: with workpiece to be plated (carborundum content is 70% aluminum silicon carbide composite material workpiece) surface finish, place the light polishing machine of salic medium, light decorations 40min, and clean;
(2) oil removing: will place through the workpiece to be plated after step (1) is handled to contain the aqueous solution that massfraction is 12% water glass, ultrasonic cleaning 35min cleans with deionized water again, dries up;
(3) alligatoring: will be through the solution soaking of the workpiece to be plated after step (2) processing with hydrofluoric acid, nitric acid, hydrogen peroxide and deionized water composition, in the described soaking solution, the volume ratio of hydrofluoric acid, nitric acid, hydrogen peroxide and deionized water is 0.3:1:1:1, soak 12 min, clean with deionized water again, dry up;
(4) activation: the activated solution that workpiece to be plated that will be after step (3) alligatoring is formed with nickel acetate, inferior sodium phosphate, dehydrated alcohol and deionized water soaks, in the described activated solution, the mass ratio of nickel acetate, inferior sodium phosphate and dehydrated alcohol is 1:1:14, the amount of deionized water is 4 times of nickel acetate, soak 30min, clean with deionized water again, dry up; At 180 ℃ of following thermal treatment 16min;
(5) plating: will place the chemical plating fluid of forming by single nickel salt, inferior sodium phosphate, lactic acid, boric acid, acetate, thiocarbamide, sodium-acetate and deionized water through the workpiece to be plated after step (4) activation, in the described chemical solution, the content of single nickel salt is 25g/L, inferior sodium phosphate 25g/L, lactic acid is 25ml/L, and boric acid is 20g/L, and acetate is 10ml/L, thiocarbamide is 1mg/L, and sodium-acetate is 1g/L; With ammoniacal liquor control chemical plating fluid pH value is 4.0, and heating in water bath is 85 ℃, plating 15h;
(6) thermal treatment: will place in the process furnace through the plating piece after step (5) is handled, be heated to 240 ℃, behind the constant temperature 70min, cooling.
The present embodiment thickness of coating is 105 μ m, coating light, smooth, even, fine and close, and by observation by light microscope, coating do not have foaming, peel off the phenomenon with crackle; Carry out thermal shock test to plating the back product, behind 250 ℃ of insulation 60min, take out and put into tap water and cool off, reciprocal 10 times, under opticmicroscope, to observe, coating bubble do not occur, peels off and seminess; Grind the mirror surface image definition to plating the back product; Carried out the soldering test to plating the back product under 265 ℃, it is smoothly firm that postwelding detects weld seam, satisfies the weldability requirement of Electronic Packaging.

Claims (7)

1. an aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology is characterized in that, comprises the steps:
(1) workpiece surface pre-treatment to be plated: with workpiece surface polishing to be plated, place the light polishing machine of salic medium, light decorations 15~45min cleans;
(2) oil removing: will place that to contain massfraction be 8~15% sodium silicate aqueous solution through the workpiece to be plated after step (1) is handled, and clean 20~40min, and clean with deionized water again, and dry up;
(3) alligatoring: will be through the solution soaking of the workpiece to be plated after step (2) processing with hydrofluoric acid, nitric acid, hydrogen peroxide and deionized water composition, in the described soaking solution, the volume ratio of hydrofluoric acid, nitric acid, hydrogen peroxide and deionized water is (0.1~0.4): (1~1.5): (1~1.5): (1~1.5), soak 8~15min, clean with deionized water again, dry up;
(4) activation: the activated solution that workpiece to be plated that will be after step (3) alligatoring is formed with nickel acetate, inferior sodium phosphate, dehydrated alcohol and deionized water, in the described activated solution, the mass ratio of nickel acetate, inferior sodium phosphate and dehydrated alcohol is 1:(0.8~1.2): (12~18), soak 10~30min, clean with deionized water again, dry up; Then at 150~200 ℃ of thermal treatment 15~25min;
(5) plating: will place the chemical plating fluid of forming by nickel salt, reductive agent, complexing agent, stablizer, buffer reagent and deionized water through the workpiece to be plated after step (4) activation, in the described chemical plating fluid, nickel salt 20~30g/L, reductive agent is 15~25g/L, complexing agent is 15~60ml/L, stabiliser content is 1~10mg/L, and buffer reagent is 0.5~2g/L; With ammoniacal liquor control chemical plating fluid pH value is 4.0~4.5, heating in water bath to 70~95 ℃, and plating speed is 5~12 μ m/h;
(6) thermal treatment: will place in the process furnace through the workpiece after step (5) plating, be heated to 200~300 ℃, behind constant temperature 30~90min, cooling.
2. described aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology according to claim 1, it is characterized in that: step (2), described cleaning are ultrasonic cleaning.
3. described aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology according to claim 1 and 2, it is characterized in that: step (5), described nickel salt are single nickel salt or nickel acetate.
4. described aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology according to claim 1 and 2, it is characterized in that: step (5), described reductive agent are inferior sodium phosphate.
5. described aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology according to claim 1 and 2, it is characterized in that: step (5), described complexing agent are lactic acid, propionic acid, acetate or boric acid.
6. described aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology according to claim 1 and 2, it is characterized in that: step (5), described stablizer are Pb 2+Or thiocarbamide.
7. described aluminum silicon carbide composite material chemical plating nickel-phosphorus alloy on surface technology according to claim 1 and 2, it is characterized in that: step (5), described buffer reagent are sodium-acetate or Sodium Fluoride.
CN 201110259096 2011-09-05 2011-09-05 Process for chemical nickel-phosphorus alloy plating on surface of aluminum and silicon carbide composite material Expired - Fee Related CN102277564B (en)

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
CN102732865A (en) * 2012-04-11 2012-10-17 中国电子科技集团公司第五十五研究所 Chemical nickel plating solution and aluminum silicon carbide plating method
CN103498156A (en) * 2013-09-27 2014-01-08 成都四威高科技产业园有限公司 Surface coating technology of silicon carbide particle reinforced aluminium-based composite
CN104241025A (en) * 2014-10-05 2014-12-24 青岛凯瑞电子有限公司 Multilayer nickel plating process for relay shells
CN104313550A (en) * 2014-11-13 2015-01-28 湖南航天诚远精密机械有限公司 Surface modification method of silicon carbide space reflector
CN105603396A (en) * 2016-01-07 2016-05-25 长沙岱勒新材料科技股份有限公司 Method for plating surface of diamond with nickel
CN106381482A (en) * 2016-09-13 2017-02-08 北京理工大学 Chemical plating solution for Ni-P plated layer and controllable preparation method of micro-nano mold
CN107304479A (en) * 2017-06-19 2017-10-31 长沙博朗思达新材料科技有限公司 A kind of coating method of silumin
CN108588691A (en) * 2018-05-11 2018-09-28 西安朗赛精密机械有限公司 A kind of plating Ni methods of aluminium silicon carbide material
CN109267045A (en) * 2018-11-13 2019-01-25 北京卫星制造厂有限公司 Enhancing aluminum-base composite material by silicon carbide particles gold plate preparation method and application
CN111690931A (en) * 2020-06-05 2020-09-22 中国科学院金属研究所 Aluminum alloy surface multilayer composite coating and preparation method thereof
CN113564594A (en) * 2021-07-13 2021-10-29 珠海亿特立新材料有限公司 Surface treatment method for aluminum silicon carbide
CN114150297A (en) * 2021-10-29 2022-03-08 北京卫星制造厂有限公司 Chemical nickel plating method for surface of high-volume aluminum-based silicon carbide composite material

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102732865A (en) * 2012-04-11 2012-10-17 中国电子科技集团公司第五十五研究所 Chemical nickel plating solution and aluminum silicon carbide plating method
CN103498156A (en) * 2013-09-27 2014-01-08 成都四威高科技产业园有限公司 Surface coating technology of silicon carbide particle reinforced aluminium-based composite
CN104241025A (en) * 2014-10-05 2014-12-24 青岛凯瑞电子有限公司 Multilayer nickel plating process for relay shells
CN104241025B (en) * 2014-10-05 2016-08-24 青岛凯瑞电子有限公司 A kind of multiple layer nickel plating method of relay1 case
CN104313550A (en) * 2014-11-13 2015-01-28 湖南航天诚远精密机械有限公司 Surface modification method of silicon carbide space reflector
CN105603396A (en) * 2016-01-07 2016-05-25 长沙岱勒新材料科技股份有限公司 Method for plating surface of diamond with nickel
CN106381482A (en) * 2016-09-13 2017-02-08 北京理工大学 Chemical plating solution for Ni-P plated layer and controllable preparation method of micro-nano mold
CN107304479A (en) * 2017-06-19 2017-10-31 长沙博朗思达新材料科技有限公司 A kind of coating method of silumin
CN107304479B (en) * 2017-06-19 2019-07-09 长沙博朗思达新材料科技有限公司 A kind of coating method of silumin
CN108588691A (en) * 2018-05-11 2018-09-28 西安朗赛精密机械有限公司 A kind of plating Ni methods of aluminium silicon carbide material
CN109267045A (en) * 2018-11-13 2019-01-25 北京卫星制造厂有限公司 Enhancing aluminum-base composite material by silicon carbide particles gold plate preparation method and application
CN111690931A (en) * 2020-06-05 2020-09-22 中国科学院金属研究所 Aluminum alloy surface multilayer composite coating and preparation method thereof
CN113564594A (en) * 2021-07-13 2021-10-29 珠海亿特立新材料有限公司 Surface treatment method for aluminum silicon carbide
CN114150297A (en) * 2021-10-29 2022-03-08 北京卫星制造厂有限公司 Chemical nickel plating method for surface of high-volume aluminum-based silicon carbide composite material
CN114150297B (en) * 2021-10-29 2023-12-12 北京卫星制造厂有限公司 Surface chemical nickel plating method for high-volume aluminum-based silicon carbide composite material

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