CN108165957A - Aluminum alloy material surface chemical nickel plating method - Google Patents
Aluminum alloy material surface chemical nickel plating method Download PDFInfo
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- CN108165957A CN108165957A CN201810029859.3A CN201810029859A CN108165957A CN 108165957 A CN108165957 A CN 108165957A CN 201810029859 A CN201810029859 A CN 201810029859A CN 108165957 A CN108165957 A CN 108165957A
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- Prior art keywords
- coating
- nickel plating
- chemical nickel
- aluminum alloy
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
- C23C18/1837—Multistep pretreatment
- C23C18/1844—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The present invention relates to a kind of aluminum alloy material surface chemical nickel plating methods, and surface active is enabled aluminum alloy to using the method that chromic acid sulfuric acid is washed after electrochemical deoiling, are easy to the Direct precipitation of metal, increase the binding force with coating；Using chemical nickel plating method in aluminum alloy surface deposited plating layer, ensure that coating has certain hardness and corrosion resistance, and phosphorus content in coating is made to be 5%~10%, the hardness, wearability and corrosion resistance for making coating are preferable, without other intermediate deposits among coating and alloy matrix aluminum, process simplicity is easily operated.
Description
Technical field
The present invention relates to a kind of surface treatment method, especially a kind of aluminum alloy material surface chemical nickel plating method.
The prior art
The density of aluminium alloy is low, and corrosion resistance and good, anti-fatigue performance is higher, and specific strength and specific stiffness are all bigger, with
Structural steel even unimach is suitable, so being used widely in aircraft industry, to mitigate aero-structure weight, carries
High carrying capacity and speed.The hardness of aluminium alloy is low, and wearability is poor, is washed away intolerant to oil gas, can be significantly after chemical nickel plating
Case hardness, wearability and the performance of flushing of resistance to oil gas are improved, the application environment of aluminum alloy materials can be widened significantly.On aluminium alloy
Plating is than plating difficulty on the metal materials such as steel and copper and much more complex, since its property is active, surface pole in air
Easily react generation layer oxide film with oxygen, and the presence of this layer of oxidation film hampers aluminium alloy and is further surface-treated；Together
When aluminium electrode potential it is very negative, immerse plating solution when can react with various metals ion into line replacement, on aluminium generation contact coating,
Make the reduction of the bond strength of coating and aluminum substrate.The pretreatment mode process of Plating Layer on Aluminium Alloy is more complicated at present, general to use
Flash copper or the method for flash nickel after leaching zinc or wicking, technological process is longer, needs the parameter controlled more in technique, technique control
Difficulty processed is larger.
Invention content
The object of the present invention is to provide a kind of aluminum alloy material surface chemical nickel plating methods, enable aluminum alloy to surface active, from
And achieve the purpose that aluminum alloy surface No oxided film, be easy to Direct Metal Deposition, it is greatly improved case hardness, wearability and resistance to
Oil gas performance of flushing, meets requirement.
Concrete scheme of the present invention is that the aluminum alloy material surface chemical nickel plating method includes the following steps：
1. prepare：Prepare the part of the aluminum alloy materials of surface cleaning；
2. electrochemical deoiling：Part is placed on containing sodium carbonate 30g/L~40g/L, sodium phosphate 10g/L~15g/L, sodium metasilicate
In the aqueous solution of 0.8g/L~1g/L, solution temperature is 45 DEG C~55 DEG C, soaking time 5min~10min, carries out electrochemical deoiling,
Washed after electrochemical deoiling, qualification be not broken into continuously by 30S moisture films, otherwise as stated above again oil removing until
It is qualified；
3. chromic acid sulfuric acid is washed：Part is placed on sulfur acid 150g/L~200g/L, in the aqueous solution of chromic acid 65g/L~75g/L,
Temperature is 50 DEG C~55 DEG C, and the time is 1min~2min, is washed after chromic acid sulphur pickling processes；
4. chemical nickel plating：Part is placed on containing the chemical nickel-plating solution 50ml/L that the trade mark is 65R, the trade mark is the chemistry of code name 65M
In the aqueous solution of nickel plating solution 150ml/L, temperature is 89 DEG C~95 DEG C, time 40min~60min, and water is carried out after chemical nickel plating
It washes；
5. dehydrogenation：After aluminum alloy part chemical nickel plating, it is placed in 120 DEG C ± 10 DEG C of air furnace and heats at least 6h progress dehydrogenations
Heat treatment, then takes out and is air-cooled to room temperature；
6. it checks：Chemical Ni-plating layer appearance color uniformity, coating uniformly continuous are checked by visual observation, and pin-free, point rises
Phenomena such as skin, peeling, cracking, blistering, measures thickness of coating by general measurer, microscopy measurements, and thickness of coating should not
Less than 0.02mm, carry out thermal shock tests according in GB5270 2.12 and check binding force of cladding material, coating should without peeling off peeling, phenomenon,
Coating hardness is checked with Vickers, and hardness should reach more than HV400, and neutral salt spray test inspection is carried out according to HB5830.12
Corrosion resistance of coating is looked into, answers 48 hours corrosion-free phenomenons, carries out tension test according to HB5143, tensile strength should be not less than former stretch
The 10% of intensity checks the phosphorus content of coating phosphorus content should be 5%~10%.
The present invention enables aluminum alloy to surface active by using the method that chromic acid sulfuric acid is washed after electrochemical deoiling, is easy to the straight of metal
Deposition is connect, increases the binding force with coating.Using chemical nickel plating method in aluminum alloy surface deposited plating layer, ensure that coating has centainly
Hardness and corrosion resistance, and phosphorus content is made in coating to be 5%~10%, the hardness, wearability and corrosion resistance for making coating are preferable,
Without other intermediate deposits among coating and alloy matrix aluminum, process simplicity is easily operated.
Specific embodiment
A kind of aluminum alloy material surface chemical nickel plating method includes the following steps：
1. prepare：Prepare the part of the aluminum alloy materials of surface cleaning；
2. electrochemical deoiling：Part is placed on containing sodium carbonate 30g/L~40g/L, sodium phosphate 10g/L~15g/L, sodium metasilicate
In the aqueous solution of 0.8g/L~1g/L, solution temperature is 45 DEG C~55 DEG C, soaking time 5min~10min, carries out electrochemical deoiling,
Washed after electrochemical deoiling, qualification be not broken into continuously by 30S moisture films, otherwise as stated above again oil removing until
It is qualified；
3. chromic acid sulfuric acid is washed：Part is placed on sulfur acid 150g/L~200g/L, in the aqueous solution of chromic acid 65g/L~75g/L,
Temperature is 50 DEG C~55 DEG C, and the time is 1min~2min, is washed after chromic acid sulphur pickling processes；
4. chemical nickel plating：Part is placed on containing the chemical nickel-plating solution 50ml/L that the trade mark is 65R, the trade mark is the chemistry of code name 65M
In the aqueous solution of nickel plating solution 150ml/L, temperature is 89 DEG C~95 DEG C, time 40min~60min, and water is carried out after chemical nickel plating
It washes；
5. dehydrogenation：After aluminum alloy part chemical nickel plating, it is placed in 120 DEG C ± 10 DEG C of air furnace and heats at least 6h progress dehydrogenations
Heat treatment, then takes out and is air-cooled to room temperature；
6. it checks：Chemical Ni-plating layer appearance color uniformity, coating uniformly continuous are checked by visual observation, and pin-free, point rises
Phenomena such as skin, peeling, cracking, blistering, measures thickness of coating by general measurer, microscopy measurements, and thickness of coating should not
Less than 0.02mm, carry out thermal shock tests according in GB5270 2.12 and check binding force of cladding material, coating should without peeling off peeling, phenomenon,
Coating hardness is checked with Vickers, and hardness should reach more than HV400, and neutral salt spray test inspection is carried out according to HB5830.12
Corrosion resistance of coating is looked into, answers 48 hours corrosion-free phenomenons, carries out tension test according to HB5143, tensile strength should be not less than former stretch
The 10% of intensity checks the phosphorus content of coating phosphorus content should be 5%~10%.
Embodiment
To 2014 aluminium alloy diffusers carry out chemical nickel plating, it is desirable that thickness of coating be not less than 0.2mm, thickness of coating uniformly,
Continuously, binding force is good, has wear-resisting, Corrosion Protection.
Implementation steps：
1. prepare：Prepare the part of 2014 aluminum alloy materials of surface cleaning；
2. electrochemical deoiling：Part is placed on containing sodium carbonate 35g/L, sodium phosphate 12g/L, in the aqueous solution of sodium metasilicate 0.9g/L,
Temperature is 51 DEG C, time 5min, carries out electrochemical deoiling, is washed after electrochemical deoiling, do not broken continuously by 30S moisture films
It splits；
3. chromic acid sulfuric acid is washed：Part is placed on sulfur acid 190g/L, in the aqueous solution of chromic acid 70g/L, temperature is 52 DEG C, the time
For 1.5min, washed after chromic acid sulphur pickling processes；
4. chemical nickel plating：Part is placed on containing the chemical nickel-plating solution 50ml/L that the trade mark is 65R, the trade mark is the chemistry of code name 65M
In the aqueous solution of nickel plating solution 150ml/L, temperature is 92 DEG C, time 50min, is washed after chemical nickel plating；
5. dehydrogenation：Dehydrogenation heat treatment is carried out after aluminum alloy part chemical nickel plating, is heated 10 minutes 6 hours in 121 DEG C of air furnaces；
6. it checks：Chemical Ni-plating layer appearance color uniformity, coating uniformly continuous are checked by visual observation, and pin-free, point rises
Phenomena such as skin, peeling, cracking, blistering；Pass through metallographic specimen section gauge, 24 μm of chemical nickel plating layer thickness；According in GB5270
The defects of 2.12, which carry out thermal shock test, checks binding force of cladding material, and chemical Ni-plating layer is without peeling, peeling after thermal shock test；It is hard with Vickers
Degree meter checks coating hardness, and the microhardness HV of chemical Ni-plating layer section is 413~419；Neutral salt is carried out according to HB5830.12
Mist experiment checks corrosion resistance of coating, and by the salt spray corrosion test of 48 hours, sample did not occurred corrosion；It is drawn according to HB5143
Experiment is stretched, the sample tensile strength σ without chemical nickel platingbFor 197.9~199.6MPa, the stretching of sample after chemical nickel plating
Intensity σbFor 193.2~209.9MPa；The phosphorus content of coating is checked, phosphorus content 7.2%.
Conclusion：It is qualified.
Claims (1)
1. a kind of aluminum alloy material surface chemical nickel plating method, which is characterized in that the method includes the following steps：
1) prepare：Prepare the part of the aluminum alloy materials of surface cleaning；
2) electrochemical deoiling：Part is placed on containing sodium carbonate 30g/L~40g/L, sodium phosphate 10g/L~15g/L, sodium metasilicate
In the aqueous solution of 0.8g/L~1g/L, solution temperature is 45 DEG C~55 DEG C, soaking time 5min~10min, carries out electrochemical deoiling,
Washed after electrochemical deoiling, qualification be not broken into continuously by 30S moisture films, otherwise as stated above again oil removing until
It is qualified；
3) chromic acid sulfuric acid is washed：Part is placed on sulfur acid 150g/L~200g/L, in the aqueous solution of chromic acid 65g/L~75g/L,
Temperature is 50 DEG C~55 DEG C, and the time is 1min~2min, is washed after chromic acid sulphur pickling processes；
4) chemical nickel plating：Part is placed on containing the chemical nickel-plating solution 50ml/L that the trade mark is 65R, the trade mark is the chemistry of code name 65M
In the aqueous solution of nickel plating solution 150ml/L, temperature is 89 DEG C~95 DEG C, time 40min~60min, and water is carried out after chemical nickel plating
It washes；
5) dehydrogenation：After aluminum alloy part chemical nickel plating, it is placed in 120 DEG C ± 10 DEG C of air furnace and heats at least 6h progress dehydrogenations
Heat treatment, then takes out and is air-cooled to room temperature；
6) it checks：Chemical Ni-plating layer appearance color uniformity, coating uniformly continuous are checked by visual observation, and pin-free, point rises
Phenomena such as skin, peeling, cracking, blistering, measures thickness of coating by general measurer, microscopy measurements, and thickness of coating should not
Less than 0.02mm, carry out thermal shock tests according in GB5270 2.12 and check binding force of cladding material, coating should without peeling off peeling, phenomenon,
Coating hardness is checked with Vickers, and hardness should reach more than HV400, and neutral salt spray test inspection is carried out according to HB5830.12
Corrosion resistance of coating is looked into, answers 48 hours corrosion-free phenomenons, carries out tension test according to HB5143, tensile strength should be not less than former stretch
The 10% of intensity checks the phosphorus content of coating phosphorus content should be 5%~10%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710621735X | 2017-07-27 | ||
| CN201710621735 | 2017-07-27 |
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| CN108165957A true CN108165957A (en) | 2018-06-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385628A (en) * | 2018-11-07 | 2019-02-26 | 天津圣金特汽车配件有限公司 | A kind of aluminum alloy nickel plated technique of high-efficiency environment friendly |
| CN113089041A (en) * | 2021-04-20 | 2021-07-09 | 中国电子科技集团公司第九研究所 | Method for improving performance stability of central conductor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958845A (en) * | 2006-11-20 | 2007-05-09 | 中国重型汽车集团有限公司 | Method in use for chemical plating Mi-P alloy on surface of stainless steel |
| CN101717926A (en) * | 2009-12-28 | 2010-06-02 | 中南大学 | Chemical nickel-plating method for ZM6 magnesium alloy |
| CN104131271A (en) * | 2014-07-21 | 2014-11-05 | 西安理工大学 | Method for low-temperature alkaline nickel plating of carbon fiber/cyanate resin composite material |
| CN105483658A (en) * | 2014-09-19 | 2016-04-13 | 上海航天设备制造总厂 | Multi-layer chemical nickel plating processing method of magnesium-lithium alloys |
| CN106167896A (en) * | 2016-07-29 | 2016-11-30 | 成都立威讯科技有限公司 | The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made |
-
2018
- 2018-01-12 CN CN201810029859.3A patent/CN108165957A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958845A (en) * | 2006-11-20 | 2007-05-09 | 中国重型汽车集团有限公司 | Method in use for chemical plating Mi-P alloy on surface of stainless steel |
| CN101717926A (en) * | 2009-12-28 | 2010-06-02 | 中南大学 | Chemical nickel-plating method for ZM6 magnesium alloy |
| CN104131271A (en) * | 2014-07-21 | 2014-11-05 | 西安理工大学 | Method for low-temperature alkaline nickel plating of carbon fiber/cyanate resin composite material |
| CN105483658A (en) * | 2014-09-19 | 2016-04-13 | 上海航天设备制造总厂 | Multi-layer chemical nickel plating processing method of magnesium-lithium alloys |
| CN106167896A (en) * | 2016-07-29 | 2016-11-30 | 成都立威讯科技有限公司 | The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385628A (en) * | 2018-11-07 | 2019-02-26 | 天津圣金特汽车配件有限公司 | A kind of aluminum alloy nickel plated technique of high-efficiency environment friendly |
| CN113089041A (en) * | 2021-04-20 | 2021-07-09 | 中国电子科技集团公司第九研究所 | Method for improving performance stability of central conductor |
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Application publication date: 20180615 |
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