CN107964672A - A kind of metal surface treatment process - Google Patents
A kind of metal surface treatment process Download PDFInfo
- Publication number
- CN107964672A CN107964672A CN201711199283.7A CN201711199283A CN107964672A CN 107964672 A CN107964672 A CN 107964672A CN 201711199283 A CN201711199283 A CN 201711199283A CN 107964672 A CN107964672 A CN 107964672A
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- CN
- China
- Prior art keywords
- metal
- metal surface
- treatment
- nickel plating
- copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
Abstract
The present invention relates to a kind of metal surface treatment process, mainly includes metal surface grinding process, surface scale processing, surface wax, oil processing, cleaning treatment, activation process, nickel plating and copper plating treatment and oil spout handles seven steps；Wherein, surface scale processing is to put pending metal in the solution being made of sodium dichromate, ammonium sulfate, ammonium hydroxide, water into, and 15 25min are impregnated under 25 35 DEG C of temperature conditionss；Activation process is that metal surface is carried out activation process using hydrochloric acid solution；Nickel plating, copper plating treatment are that first the metal surface after activation process carries out nickel plating, and electric coke-plated copper is then carried out on the surface of nickel plating, finally carries out electroplating acid copper on the surface of coke-plated copper；Metal skin hardness height, corrosion resistance and the crocking resistance that the present invention obtains are good, and high-temperature behavior is high；At the same time the present invention in metal surface treatment process it is simple, production cost is low, the process-cycle end it is short, rejection rate is low, and human cost is low.
Description
Technical field
The present invention relates to a kind of process of surface treatment, belong to field of machining, it is more particularly related to a kind of
Metal surface treatment process.
Background technology
In recent years, greatly developing with material science and computer technology, new mold materials emerge in an endless stream, forge mould
Intend numerical simulation software largely to be used, the structure design of mould has also obtained very big optimization, and the manufacture method of mould also has
Very big development.But in addition to improving the quality of mould, it is necessary to treat molding metal works blank and take effective table
Face lubricant method.Before cold extrusion, surface lubrication processing is carried out to metal works blank can be to avoid generation severe plastic deformation
Workpiece, with mould inner wall Severe scratches, can improve surface quality and the die life of workpiece under very high unit pressure.It is several
Over 10 years, phosphorus saponification process is always to solve cold-extruding metal surface treatment and the most effectual way of lubrication.But phospholeum chemical industry
Skill brings the pollution problem of serious phosphorus-containing wastewater discharge,
And among present technique, dimensional accuracy and surface smoothness to part propose very high requirement,
It is almost harsh.In the past, mechanical forensic chemistry was leaned on when the positive dimension overproof and surface roughness of part do not meet technical requirements
Method is handled.The process-cycle that this allows for workpiece is long, high rejection rate, and human cost and material consumption remain high, people
The production sanitary condition of member is poor.It would therefore be desirable to a kind of new metal surface treating method solves the problems, such as these.
The content of the invention
Based on above technical problem, the present invention provides a kind of metal surface treatment process, so as to solve conventional metal
It is surface-treated cycle length, high rejection rate, manpower and the technical problem of high material consumption and working environment difference.
To solve above technical problem, the technical solution adopted by the present invention is as follows：
A kind of metal surface treatment process, comprises the following steps,
1) surface grinding process：Surface of workpiece is done into fine grain Shot Blasting, using sand paper by the raised points on surface
Polishing is clean, is then cleaned and dried with clear water；
2) surface scale is handled：Pending metal is put into be made of sodium dichromate, ammonium sulfate, ammonium hydroxide, water it is molten
In liquid, 15-25min is impregnated under 25-35 DEG C of temperature conditionss, then with cold water wash 5-10min, finally at 35-45 DEG C into
Row drying；
3) surface wax, oil processing：Metal Jing Guo surface oxidation treatment is put into supersonic generator and is carried out at paraffin removal
Reason, is put into 55-65 DEG C of sodium hydroxide solution processing 6-8min by the metal after paraffin removal, removes metal surface greasy dirt；
4) cleaning treatment：Metal after paraffin removal, oil removal treatment is rinsed in the case where flowing clear water, is adopted after rinsing
Drying processing is carried out with air-heater；
5) activation process：Cleaned metal surface will be passed through and carry out activation process using hydrochloric acid solution；
6) nickel plating, copper plating treatment：First metal surface after activation process carries out nickel plating, then the surface of nickel plating into
Row electricity coke-plated copper, finally carries out electroplating acid copper on the surface of coke-plated copper；
7) oil spout：Metal after nickel plating, copper plating treatment is subjected to injector surface processing under vacuum.
On the basis of above technical scheme：The sodium dichromate, ammonium sulfate, ammonium hydroxide, the ratio of weight and number of water are 2：5：1：
90。
On the basis of above technical scheme：The sodium hydroxide solution is sodium hydroxide and water is 1 in mass ratio：20 ratios
Match the mixed liquor formed.
On the basis of above technical scheme：The concentration of the hydrochloric acid is 25%-40%, soak time 40-90s.
On the basis of above technical scheme：Oil spout spraying for anti-fingerprint oil, toasted after oil spout, when baking is a length of
40-50min, baking temperature are 180-220 DEG C.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：The present invention is by metal surface
Polishing, descales, paraffin removal, oil removing, are then activated, and are carried out nickel plating, copper facing again in the metal surface of activation, are finally carried out
Oil spout is handled；Such Treatment of Metal Surface mode can make metal in metallic surface deposited metal or metallic compound
Hardness, corrosion resistance, crocking resistance and the resistance to elevated temperatures on surface are all significantly improved；Metal watch in the present invention
Surface treatment technique is simple, and production cost is low, the process-cycle end it is short, rejection rate is low, and human cost is low.
Embodiment
The present invention is further illustrated below.Embodiments of the present invention include but not limited to the following example.
Specific embodiment
A kind of metal surface treatment process, comprises the following steps,
1) surface grinding process：Surface of workpiece is done into fine grain Shot Blasting, using sand paper by the raised points on surface
Polishing is clean, is then cleaned and dried with clear water；
2) surface scale is handled：Pending metal is put into be made of sodium dichromate, ammonium sulfate, ammonium hydroxide, water it is molten
In liquid, 15-25min is impregnated under 25-35 DEG C of temperature conditionss, then with cold water wash 5-10min, finally at 35-45 DEG C into
Row drying；Sodium dichromate, ammonium sulfate, ammonium hydroxide, the ratio of weight and number of water are 2：5：1：90；
3) surface wax, oil processing：Metal Jing Guo surface oxidation treatment is put into supersonic generator and is carried out at paraffin removal
Reason, is put into 55-65 DEG C of sodium hydroxide solution processing 6-8min by the metal after paraffin removal, removes metal surface greasy dirt；Hydroxide
Sodium solution is sodium hydroxide and water is 1 in mass ratio：The mixed liquor that 20 proportions form；
4) cleaning treatment：Metal after paraffin removal, oil removal treatment is rinsed in the case where flowing clear water, is adopted after rinsing
Drying processing is carried out with air-heater；
5) activation process：Cleaned metal surface will be passed through and carry out activation process using hydrochloric acid solution；Hydrochloric acid
Concentration is 25%-40%, soak time 40-90s；
6) nickel plating, copper plating treatment：First metal surface after activation process carries out nickel plating, then the surface of nickel plating into
Row electricity coke-plated copper, finally carries out electroplating acid copper on the surface of coke-plated copper；
7) oil spout：Metal after nickel plating, copper plating treatment is subjected to injector surface processing under vacuum；Oil spout is sprayed
Apply for anti-fingerprint oil, toasted after oil spout, a length of 40-50min during baking, baking temperature is 180-220 DEG C.
The present embodiment descales, paraffin removal, oil removing, then live in use, metal surface is polished by surface
Change, nickel plating, copper facing are carried out again in the metal surface of activation, finally carry out oil spout processing；Such Treatment of Metal Surface mode can
With in metallic surface deposited metal or metallic compound, make the hardness of metal surface, corrosion resistance, crocking resistance with
And resistance to elevated temperatures is all significantly improved；Metal surface treatment process in the present invention is simple, and production cost is low, the process-cycle
Hold short, rejection rate is low, and human cost is low.
Embodiment 1
A kind of metal surface treatment process, comprises the following steps,
1) surface grinding process：Surface of workpiece is done into fine grain Shot Blasting, using sand paper by the raised points on surface
Polishing is clean, is then cleaned and dried with clear water；
2) surface scale is handled：Pending metal is put into be made of sodium dichromate, ammonium sulfate, ammonium hydroxide, water it is molten
In liquid, 15min is impregnated under 25 DEG C of temperature conditionss, then with cold water wash 5min, is finally dried at 35 DEG C；Dichromic acid
Sodium, ammonium sulfate, ammonium hydroxide, the ratio of weight and number of water are 2：5：1：90；
3) surface wax, oil processing：Metal Jing Guo surface oxidation treatment is put into supersonic generator and is carried out at paraffin removal
Reason, is put into 55 DEG C of sodium hydroxide solution processing 6min by the metal after paraffin removal, removes metal surface greasy dirt；Sodium hydroxide solution
It is 1 in mass ratio for sodium hydroxide and water：The mixed liquor that 20 proportions form；
4) cleaning treatment：Metal after paraffin removal, oil removal treatment is rinsed in the case where flowing clear water, is adopted after rinsing
Drying processing is carried out with air-heater；
5) activation process：Cleaned metal surface will be passed through and carry out activation process using hydrochloric acid solution；Hydrochloric acid
Concentration is 25%, soak time 40s；
6) nickel plating, copper plating treatment：First metal surface after activation process carries out nickel plating, then the surface of nickel plating into
Row electricity coke-plated copper, finally carries out electroplating acid copper on the surface of coke-plated copper；
7) oil spout：Metal after nickel plating, copper plating treatment is subjected to injector surface processing under vacuum；Oil spout is sprayed
Apply for anti-fingerprint oil, toasted after oil spout, a length of 40min during baking, baking temperature is 180 DEG C.
The present embodiment descales, paraffin removal, oil removing, then live in use, metal surface is polished by surface
Change, nickel plating, copper facing are carried out again in the metal surface of activation, finally carry out oil spout processing；Such Treatment of Metal Surface mode can
With in metallic surface deposited metal or metallic compound, make the hardness of metal surface, corrosion resistance, crocking resistance with
And resistance to elevated temperatures is all significantly improved；Metal surface treatment process in the present invention is simple, and production cost is low, the process-cycle
Hold short, rejection rate is low, and human cost is low.
Embodiment 2
A kind of metal surface treatment process, comprises the following steps,
1) surface grinding process：Surface of workpiece is done into fine grain Shot Blasting, using sand paper by the raised points on surface
Polishing is clean, is then cleaned and dried with clear water；
2) surface scale is handled：Pending metal is put into be made of sodium dichromate, ammonium sulfate, ammonium hydroxide, water it is molten
In liquid, 20min is impregnated under 30 DEG C of temperature conditionss, then with cold water wash 8min, is finally dried at 40 DEG C；Dichromic acid
Sodium, ammonium sulfate, ammonium hydroxide, the ratio of weight and number of water are 2：5：1：90；
3) surface wax, oil processing：Metal Jing Guo surface oxidation treatment is put into supersonic generator and is carried out at paraffin removal
Reason, is put into 60 DEG C of sodium hydroxide solution processing 7min by the metal after paraffin removal, removes metal surface greasy dirt；Sodium hydroxide solution
It is 1 in mass ratio for sodium hydroxide and water：The mixed liquor that 20 proportions form；
4) cleaning treatment：Metal after paraffin removal, oil removal treatment is rinsed in the case where flowing clear water, is adopted after rinsing
Drying processing is carried out with air-heater；
5) activation process：Cleaned metal surface will be passed through and carry out activation process using hydrochloric acid solution；Hydrochloric acid
Concentration is 33%, soak time 65s；
6) nickel plating, copper plating treatment：First metal surface after activation process carries out nickel plating, then the surface of nickel plating into
Row electricity coke-plated copper, finally carries out electroplating acid copper on the surface of coke-plated copper；
7) oil spout：Metal after nickel plating, copper plating treatment is subjected to injector surface processing under vacuum；Oil spout is sprayed
Apply for anti-fingerprint oil, toasted after oil spout, a length of 45min during baking, baking temperature is 200 DEG C.
The present embodiment descales, paraffin removal, oil removing, then live in use, metal surface is polished by surface
Change, nickel plating, copper facing are carried out again in the metal surface of activation, finally carry out oil spout processing；Such Treatment of Metal Surface mode can
With in metallic surface deposited metal or metallic compound, make the hardness of metal surface, corrosion resistance, crocking resistance with
And resistance to elevated temperatures is all significantly improved；Metal surface treatment process in the present invention is simple, and production cost is low, the process-cycle
Hold short, rejection rate is low, and human cost is low.
Embodiment 3
A kind of metal surface treatment process, comprises the following steps,
1) surface grinding process：Surface of workpiece is done into fine grain Shot Blasting, using sand paper by the raised points on surface
Polishing is clean, is then cleaned and dried with clear water；
2) surface scale is handled：Pending metal is put into be made of sodium dichromate, ammonium sulfate, ammonium hydroxide, water it is molten
In liquid, 25min is impregnated under 35 DEG C of temperature conditionss, then with cold water wash 10min, is finally dried at 45 DEG C；Weight chromium
Sour sodium, ammonium sulfate, ammonium hydroxide, the ratio of weight and number of water are 2：5：1：90；
3) surface wax, oil processing：Metal Jing Guo surface oxidation treatment is put into supersonic generator and is carried out at paraffin removal
Reason, is put into 65 DEG C of sodium hydroxide solution processing 8min by the metal after paraffin removal, removes metal surface greasy dirt；Sodium hydroxide solution
It is 1 in mass ratio for sodium hydroxide and water：The mixed liquor that 20 proportions form；
4) cleaning treatment：Metal after paraffin removal, oil removal treatment is rinsed in the case where flowing clear water, is adopted after rinsing
Drying processing is carried out with air-heater；
5) activation process：Cleaned metal surface will be passed through and carry out activation process using hydrochloric acid solution；Hydrochloric acid
Concentration is 40%, soak time 90s；
6) nickel plating, copper plating treatment：First metal surface after activation process carries out nickel plating, then the surface of nickel plating into
Row electricity coke-plated copper, finally carries out electroplating acid copper on the surface of coke-plated copper；
7) oil spout：Metal after nickel plating, copper plating treatment is subjected to injector surface processing under vacuum；Oil spout is sprayed
Apply for anti-fingerprint oil, toasted after oil spout, a length of 50min during baking, baking temperature is 220 DEG C.
The present embodiment descales, paraffin removal, oil removing, then live in use, metal surface is polished by surface
Change, nickel plating, copper facing are carried out again in the metal surface of activation, finally carry out oil spout processing；Such Treatment of Metal Surface mode can
With in metallic surface deposited metal or metallic compound, make the hardness of metal surface, corrosion resistance, crocking resistance with
And resistance to elevated temperatures is all significantly improved；Metal surface treatment process in the present invention is simple, and production cost is low, the process-cycle
Hold short, rejection rate is low, and human cost is low.
It is the embodiment of the present invention as described above.Each preferred embodiment described previously for the present invention, it is each preferred
Preferred embodiment in embodiment if not obvious contradictory or premised on a certain preferred embodiment, it is each preferably
Embodiment can arbitrarily stack combinations use, and the design parameter in the embodiment and embodiment is merely to understand table
The invention verification process of inventor is stated, and is not used to the scope of patent protection of the limitation present invention, scope of patent protection of the invention
Still it is subject to its claims, the equivalent structure change that every description with the present invention is made, similarly should all
Comprising within the scope of the present invention.
Claims (5)
1. a kind of metal surface treatment process, comprises the following steps, it is characterised in that：
1) surface grinding process：Surface of workpiece is done into fine grain Shot Blasting, the raised points on surface are polished using sand paper
Totally, then cleaned and dried with clear water；
2) surface scale is handled：Pending metal is put into the solution being made of sodium dichromate, ammonium sulfate, ammonium hydroxide, water,
15-25min is impregnated under 25-35 DEG C of temperature conditionss, then with cold water wash 5-10min, is finally done at 35-45 DEG C
It is dry；
3) surface wax, oil processing：Metal Jing Guo surface oxidation treatment is put into supersonic generator and carries out removing Lasaxing Oilfield, will
Metal after paraffin removal is put into 55-65 DEG C of sodium hydroxide solution processing 6-8min, removes metal surface greasy dirt；
4) cleaning treatment：Metal after paraffin removal, oil removal treatment is rinsed in the case where flowing clear water, using heat after rinsing
Wind turbine carries out drying processing；
5) activation process：Cleaned metal surface will be passed through and carry out activation process using hydrochloric acid solution；
6) nickel plating, copper plating treatment：First the metal surface after activation process carries out nickel plating, then carries out electricity on the surface of nickel plating
Coke-plated copper, finally carries out electroplating acid copper on the surface of coke-plated copper；
7) oil spout：Metal after nickel plating, copper plating treatment is subjected to injector surface processing under vacuum.
A kind of 2. metal surface treatment process according to claim 1, it is characterised in that：The sodium dichromate, ammonium sulfate,
Ammonium hydroxide, the ratio of weight and number of water are 2：5：1：90.
A kind of 3. metal surface treatment process according to claim 1, it is characterised in that：The sodium hydroxide solution is hydrogen
Sodium oxide molybdena is 1 in mass ratio with water：The mixed liquor that 20 proportions form.
A kind of 4. metal surface treatment process according to claim 1, it is characterised in that：The concentration of the hydrochloric acid is
25%-40%, soak time 40-90s.
A kind of 5. metal surface treatment process according to claim 1, it is characterised in that：Oil spout spraying for anti-fingerprint
Oil, is toasted after oil spout, a length of 40-50min during baking, and baking temperature is 180-220 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711199283.7A CN107964672A (en) | 2017-11-26 | 2017-11-26 | A kind of metal surface treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711199283.7A CN107964672A (en) | 2017-11-26 | 2017-11-26 | A kind of metal surface treatment process |
Publications (1)
| Publication Number | Publication Date |
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| CN107964672A true CN107964672A (en) | 2018-04-27 |
Family
ID=61998920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201711199283.7A Pending CN107964672A (en) | 2017-11-26 | 2017-11-26 | A kind of metal surface treatment process |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531433A (en) * | 2018-12-21 | 2019-03-29 | 宁波英科特精工机械股份有限公司 | A kind of metal surface treatment process |
| CN109622971A (en) * | 2018-11-18 | 2019-04-16 | 柳州中通科技有限公司 | A kind of processing technology of rail traffic low porosity high-precision bearing |
-
2017
- 2017-11-26 CN CN201711199283.7A patent/CN107964672A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622971A (en) * | 2018-11-18 | 2019-04-16 | 柳州中通科技有限公司 | A kind of processing technology of rail traffic low porosity high-precision bearing |
| CN109531433A (en) * | 2018-12-21 | 2019-03-29 | 宁波英科特精工机械股份有限公司 | A kind of metal surface treatment process |
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Application publication date: 20180427 |