CN106167896A - The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made - Google Patents
The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made Download PDFInfo
- Publication number
- CN106167896A CN106167896A CN201610607033.1A CN201610607033A CN106167896A CN 106167896 A CN106167896 A CN 106167896A CN 201610607033 A CN201610607033 A CN 201610607033A CN 106167896 A CN106167896 A CN 106167896A
- Authority
- CN
- China
- Prior art keywords
- electrical contact
- rhodanizing
- molybdenum
- composite material
- 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.)
- Pending
Links
Classifications
-
- 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
- C23C18/42—Coating with noble metals
- C23C18/44—Coating with noble metals using reducing agents
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses the rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made, its surface rhodanizing of electrical contact made for composite material of molybdenum and copper, electrical contact is put in plating basket and follow the steps below successively: step one: chemical degreasing；Step 2: dirty removing processing；Step 3: activation processing；Step 4: chemistry flash nickel；Step 5: chemistry rhodanizing.The electrical contact surface distributed that the rhodanizing layer of the present invention is made at composite material of molybdenum and copper uniformly and is well combined.
Description
Technical field
The present invention relates to the precious metal electroplating field of semi-conducting material, specifically refer to the electricity that a kind of composite material of molybdenum and copper is made
The rhodanizing technique of contact.
Background technology
Advantage at electrical contact surface-coated protecting film is paid attention to for people day by day, if can in the rhodanizing of electrical contact surface
Forming a thin layer on electrical contact surface and prevent the thin film that electrical contact aoxidizes, rhodanizing layer has relatively low contact resistance and stronger
Corrosion resistance, it is ensured that electrical contact in use keeps good and stable service behaviour.
But, on the one hand, electrical contact overall volume is less, and electrical contact carries out the electroplating processes uniform and stable conduction of its workpiece
It it is the difficult problem needing to capture；On the other hand, composite material of molybdenum and copper smooth surface, rhodanizing layer and the combination of composite material of molybdenum and copper
Power is the another difficult problem needing to capture.
Summary of the invention
It is an object of the invention to provide the rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made, little for volume
And the electrical contact that employing composite material of molybdenum and copper is made, use the mode of chemistry rhodanizing, in electrical contact surface metallization rhodium, technique
Simply, coating is evenly distributed and adhesion is good.
The present invention is achieved through the following technical solutions: the rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made, and uses
In its surface rhodanizing of electrical contact that composite material of molybdenum and copper is made, electrical contact is put in plating basket and follows the steps below successively:
Step one: chemical degreasing；
Step 2: dirty removing processing；
Step 3: activation processing；
Step 4: chemistry flash nickel；
Step 5: chemistry rhodanizing.
Further, to better implement the present invention, in described step 6, chemistry rhodanizing specifically refers to: will be equipped with electrical contact
Plating basket put in rhodanizing liquid and constantly rock plating basket, the electrical contact submerged completely in rhodanizing liquid carries out chemical plating in rhodanizing liquid
3-20min。
Further, to better implement the present invention, described rhodanizing liquid is mainly by rhodium salt, chelating agen, reducing agent, stable
Agent, pH adjusting agent are formulated, and wherein the mass concentration of rhodium ion is 1-3g/L, and pH value is 1-2.
Further, to better implement the present invention, described rhodium salt is rhodium sulfate；Described chelating agen is citric acid, winestone
Any one in acid, sodium gluconate, hydroxyacetic acid；Described reducing agent is sodium borate；Described pH adjusting agent is sodium hydroxide.
Further, to better implement the present invention, described stabilizer is hydroxylamine hydrosulphate or sulfamate.
Further, to better implement the present invention, described chemical degreasing specifically refers to electrical contact is immersed in 40-60 DEG C
Degreaser in and persistently rock 3-8min；Described degreaser formula is: sodium hydroxide 95-105g/L, tertiary sodium phosphate 6-8g/L,
Sodium carbonate 8-12g/L, dodecyl sodium sulfate 0.4-0.6g/L, sodium citrate 0.4-0.6g/L.
Further, to better implement the present invention, described dirty removing processing specifically refers to use 80-120g/L potassium dichromate
The impurity repeatedly soak electrical contact with the detergent solution of 60-100g/L sulphuric acid, rinsed to electrical contact surface completely falls off,
Then clean after carrying out scale removal.
Further, to better implement the present invention, after described scale removal, cleaning specifically refers to electrical contact through detergent solution
After carrying out surface remove impurity, sequentially enter three road deionized waters swing and clean, per pass deionized water soaks 1-4min.
Further, to better implement the present invention, described activation processing specifically refers to use mass fraction is 5-10%'s
Dilution heat of sulfuric acid soaks 2-4min.
Further, to better implement the present invention, described chemistry flash nickel specifically refers to touch the electricity after activation processing
Head carries out chemical nickel plating, and the thickness of nickel coating is 0.2-0.5um.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) technique of nickel preplating before the present invention uses rhodium plating, is made rhodanizing layer be combined with molybdenio sheet by pre-nickel plating, not only has
There is good non-oxidizability, and there is good adhesion；
(2) in the present invention, nickel preplating step electroplates one layer of thin nickel on molybdenio sheet in advance, the problem both having solved adhesion, the most not
Affect the flatness of molybdenio sheet；
(3) in the present invention, chemical raw material used by nickel preplating step is relatively conventional, with low cost, beneficially cost control.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1:
The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper of the present embodiment is made, the electricity made for composite material of molybdenum and copper
Its surface rhodanizing of contact, puts into electrical contact in plating basket and follows the steps below successively:
Step one: chemical degreasing；
Step 2: dirty removing processing；
Step 3: activation processing；
Step 4: chemistry flash nickel；
Step 5: chemistry rhodanizing.
Embodiment 2:
The present embodiment does optimization further, further, to better implement the present invention, described step on the basis of above-described embodiment
In rapid six, chemistry rhodanizing specifically refers to: the plating basket that will be equipped with electrical contact is put in rhodanizing liquid and constantly rocks plating basket, submerges completely
Electrical contact in rhodanizing liquid carries out chemical plating 3-20min in rhodanizing liquid.
Other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 3:
The present embodiment does optimization further, further, to better implement the present invention, described plating on the basis of above-described embodiment
Rhodium liquid is mainly formulated by rhodium salt, chelating agen, reducing agent, stabilizer, pH adjusting agent, and wherein the mass concentration of rhodium ion is 1-
3g/L, pH value is 1-2.
Other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 4:
The present embodiment does optimization further, further, to better implement the present invention, described rhodium on the basis of above-described embodiment
Salt is rhodium sulfate；Described chelating agen is any one in citric acid, tartaric acid, sodium gluconate, hydroxyacetic acid；Described reducing agent
For sodium borate；Described pH adjusting agent is sodium hydroxide.
Other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 5:
The present embodiment does further optimization on the basis of above-described embodiment, further, to better implement the present invention, described surely
Determining agent is hydroxylamine hydrosulphate or sulfamate.
Other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 6:
The present embodiment does optimization further, further, to better implement the present invention, describedization on the basis of above-described embodiment
Learn defat to specifically refer to be immersed in the degreaser of 40-60 DEG C by electrical contact and persistently rock 3-8min；Described degreaser formula
For: sodium hydroxide 95-105g/L, tertiary sodium phosphate 6-8g/L, sodium carbonate 8-12g/L, dodecyl sodium sulfate 0.4-0.6g/L, lemon
Lemon acid sodium 0.4-0.6g/L.
Other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 7:
The present embodiment does further optimization on the basis of above-described embodiment, further, to better implement the present invention, described removes
Dirt processes and specifically refers to use 80-120g/L potassium dichromate to carry out electrical contact repeatedly with the detergent solution of 60-100g/L sulphuric acid
Soak, the impurity of flushing to electrical contact surface completely falls off, and cleans after then carrying out scale removal.
Other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 8:
The present embodiment does further optimization on the basis of above-described embodiment, further, to better implement the present invention, described removes
Clean after dirt and specifically refer to electrical contact after detergent solution carries out surface remove impurity, sequentially enter in three road deionized waters and swing
Clean, per pass deionized water soaks 1-4min.
Other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 9:
The present embodiment does optimization further, further, to better implement the present invention, described work on the basis of above-described embodiment
Change processes the dilution heat of sulfuric acid specifically referring to use mass fraction to be 5-10% and soaks 2-4min.
Other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 10:
The present embodiment does optimization further, further, to better implement the present invention, describedization on the basis of above-described embodiment
Learning flash nickel to specifically refer to the electrical contact after activation processing is carried out chemical nickel plating, the thickness of nickel coating is 0.2-0.5um.
Other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 11:
The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made, its surface of electrical contact made for composite material of molybdenum and copper
Rhodanizing, puts into electrical contact in plating basket and follows the steps below successively:
Step one: chemical degreasing；Specifically refer to be immersed in the degreaser of 40-60 DEG C by electrical contact and persistently rock 3-8min；
Described degreaser formula is: sodium hydroxide 95-105g/L, tertiary sodium phosphate 6-8g/L, sodium carbonate 8-12g/L, dodecyl sodium sulfonate
Sodium 0.4-0.6g/L, sodium citrate 0.4-0.6g/L.
Step 2: dirty removing processing；Specifically refer to use 80-120g/L potassium dichromate molten with the scale removal of 60-100g/L sulphuric acid
The impurity that electrical contact soaks by liquid repeatedly, rinse to electrical contact surface completely falls off, and cleans after then carrying out scale removal.Described
Clean after scale removal and specifically refer to electrical contact after detergent solution carries out surface remove impurity, sequentially enter in three road deionized waters and put
Dynamic cleaning, soaks 1-4min in per pass deionized water.
Step 3: activation processing；The dilution heat of sulfuric acid specifically referring to use mass fraction to be 5-10% soaks 2-4min.
Step 4: chemistry flash nickel；Specifically refer to the electrical contact after activation processing is carried out chemical nickel plating, the thickness of nickel coating
Degree is 0.2-0.5um.
Step 5: chemistry rhodanizing；Specifically refer to: the plating basket that will be equipped with electrical contact is put in rhodanizing liquid and constantly rocks plating
Basket, the electrical contact submerged completely in rhodanizing liquid carries out chemical plating 3-20min in rhodanizing liquid.Described rhodanizing liquid mainly by rhodium salt,
Chelating agen, reducing agent, stabilizer, pH adjusting agent are formulated, and wherein the mass concentration of rhodium ion is 1-3g/L, and pH value is 1-2.
Described rhodium salt is rhodium sulfate；Described chelating agen is any one in citric acid, tartaric acid, sodium gluconate, hydroxyacetic acid；Described
Reducing agent is sodium borate；Described pH adjusting agent is sodium hydroxide；Described stabilizer is hydroxylamine hydrosulphate or sulfamate.
Other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 12:
The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made, its surface of electrical contact made for composite material of molybdenum and copper
Rhodanizing, puts into electrical contact in plating basket and follows the steps below successively:
Step one: chemical degreasing；Specifically refer to be immersed in the degreaser of 40-60 DEG C by electrical contact and persistently rock 3-8min；
Described degreaser formula is: sodium hydroxide 100g/L, tertiary sodium phosphate 7g/L, sodium carbonate 10g/L, dodecyl sodium sulfate 0.5g/
L, sodium citrate 0.5g/L.
Step 2: dirty removing processing；Specifically refer to use 100g/L potassium dichromate with the detergent solution of 75g/L sulphuric acid, electricity to be touched
The impurity that head soaks repeatedly, rinses to electrical contact surface completely falls off, and then carries out cleaning after scale removal.After described scale removal clearly
Wash and specifically refer to electrical contact after detergent solution carries out surface remove impurity, sequentially enter three road deionized waters swing and clean,
Per pass deionized water soaks 2min.
Step 3: activation processing；The dilution heat of sulfuric acid specifically referring to use mass fraction to be 5-10% soaks 2-4min.
Step 4: chemistry flash nickel；Specifically refer to the electrical contact after activation processing is carried out chemical nickel plating, the thickness of nickel coating
Degree is 0.2-0.3um.
Step 5: chemistry rhodanizing；Specifically refer to: the plating basket that will be equipped with electrical contact is put in rhodanizing liquid and constantly rocks plating
Basket, the electrical contact submerged completely in rhodanizing liquid carries out chemical plating 3-20min in rhodanizing liquid.Described rhodanizing liquid mainly by rhodium salt,
Chelating agen, reducing agent, stabilizer, pH adjusting agent are formulated, and wherein the mass concentration of rhodium ion is 2-2.2g/L, and pH value is 1-
1.2.Described rhodium salt is rhodium sulfate；Described chelating agen is any one in citric acid, tartaric acid, sodium gluconate, hydroxyacetic acid；
Described reducing agent is sodium borate；Described pH adjusting agent is sodium hydroxide；Described stabilizer is hydroxylamine hydrosulphate or sulfamic acid
Salt.
During described step 5 chemistry rhodanizing 3-5min, rhodanizing layer thickness is 0.01-0.03um；During chemistry rhodanizing 5-8min,
Rhodanizing layer thickness is 0.03-0.07um；During chemistry rhodanizing 8-12min, rhodanizing layer thickness is 0.07-0.12um；Chemistry rhodanizing 12-
During 15min, rhodanizing layer thickness is 0.12-0.16um；During chemistry rhodanizing 15-20min, rhodanizing layer thickness is 0.16-0.21um.
The above, be only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction, every depends on
Any simple modification of being made above example according to the technical spirit of the present invention, equivalent variations, each fall within the protection of the present invention
Within the scope of.
Claims (10)
1. a rhodanizing technique for the electrical contact that composite material of molybdenum and copper is made, its table of electrical contact made for composite material of molybdenum and copper
Face rhodanizing, it is characterised in that: electrical contact is put in plating basket and follow the steps below successively:
Step one: chemical degreasing；
Step 2: dirty removing processing；
Step 3: activation processing；
Step 4: chemistry flash nickel；
Step 5: chemistry rhodanizing.
The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper the most according to claim 1 is made, it is characterised in that: institute
State chemistry rhodanizing in step 5 to specifically refer to: the plating basket that will be equipped with electrical contact is put in rhodanizing liquid and constantly rocks plating basket, completely
The electrical contact submerged in rhodanizing liquid carries out chemical plating 3-20min in rhodanizing liquid.
The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper the most according to claim 2 is made, it is characterised in that: institute
State rhodanizing liquid mainly formulated by rhodium salt, chelating agen, reducing agent, stabilizer, pH adjusting agent, the wherein mass concentration of rhodium ion
For 1-3g/L, pH value is 1-2.
The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper the most according to claim 3 is made, it is characterised in that: institute
Stating rhodium salt is rhodium sulfate；Described chelating agen is any one in citric acid, tartaric acid, sodium gluconate, hydroxyacetic acid；Described also
Former dose is sodium borate；Described pH adjusting agent is sodium hydroxide.
The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper the most according to claim 3 is made, it is characterised in that: institute
Stating stabilizer is hydroxylamine hydrosulphate or sulfamate.
6. the rhodanizing technique of the electrical contact made according to a kind of composite material of molybdenum and copper described in any one of claim 1-5, it is special
Levy and be: described chemical degreasing specifically refers to be immersed in the degreaser of 40-60 DEG C by electrical contact and persistently rock 3-8min；Institute
Stating degreaser formula is: sodium hydroxide 95-105g/L, tertiary sodium phosphate 6-8g/L, sodium carbonate 8-12g/L, dodecyl sodium sulfate
0.4-0.6g/L, sodium citrate 0.4-0.6g/L.
7. the rhodanizing technique of the electrical contact made according to a kind of composite material of molybdenum and copper described in any one of claim 1-5, it is special
Levy and be: described dirty removing processing specifically refers to use the 80-120g/L potassium dichromate detergent solution with 60-100g/L sulphuric acid to electricity
The impurity that contact soaks repeatedly, rinse to electrical contact surface completely falls off, and cleans after then carrying out scale removal.
The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper the most according to claim 7 is made, it is characterised in that: institute
Clean after stating scale removal and specifically refer to electrical contact after detergent solution carries out surface remove impurity, sequentially enter in three road deionized waters
Swing and clean, per pass deionized water soaks 1-4min.
9. the rhodanizing technique of the electrical contact made according to a kind of composite material of molybdenum and copper described in any one of claim 1-5, it is special
Levy and be: the dilution heat of sulfuric acid that described activation processing specifically refers to use mass fraction to be 5-10% soaks 2-4min.
10. the rhodanizing technique of the electrical contact made according to a kind of composite material of molybdenum and copper described in any one of claim 1-5, it is special
Levy and be: described chemistry flash nickel specifically refers to the electrical contact after activation processing is carried out chemical nickel plating, and the thickness of nickel coating is
0.2-0.5um。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607033.1A CN106167896A (en) | 2016-07-29 | 2016-07-29 | The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607033.1A CN106167896A (en) | 2016-07-29 | 2016-07-29 | The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106167896A true CN106167896A (en) | 2016-11-30 |
Family
ID=58065993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610607033.1A Pending CN106167896A (en) | 2016-07-29 | 2016-07-29 | The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106167896A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165957A (en) * | 2017-07-27 | 2018-06-15 | 中国航发哈尔滨东安发动机有限公司 | Aluminum alloy material surface chemical nickel plating method |
| CN113388842A (en) * | 2021-05-19 | 2021-09-14 | 陕西斯瑞新材料股份有限公司 | Low-cost CuCr contact surface deoxidation auxiliary metal processing technology |
| CN114536202A (en) * | 2022-01-08 | 2022-05-27 | 浙江福达合金材料科技有限公司 | Novel surface treatment method for copper contact bridge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217878A (en) * | 2014-09-15 | 2014-12-17 | 南通万德科技有限公司 | Precious metal plating switch contact element and preparation method thereof |
-
2016
- 2016-07-29 CN CN201610607033.1A patent/CN106167896A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217878A (en) * | 2014-09-15 | 2014-12-17 | 南通万德科技有限公司 | Precious metal plating switch contact element and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 陈加福: "《化学镀技术1000问》", 30 November 2015 * |
| 黄玉媛等编: "《精细化工配方常用原料手册》", 31 March 1998 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165957A (en) * | 2017-07-27 | 2018-06-15 | 中国航发哈尔滨东安发动机有限公司 | Aluminum alloy material surface chemical nickel plating method |
| CN113388842A (en) * | 2021-05-19 | 2021-09-14 | 陕西斯瑞新材料股份有限公司 | Low-cost CuCr contact surface deoxidation auxiliary metal processing technology |
| CN114536202A (en) * | 2022-01-08 | 2022-05-27 | 浙江福达合金材料科技有限公司 | Novel surface treatment method for copper contact bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6611380B2 (en) | COMPOSITE PLATING LAYER FORMED ON SURFACE OF Nd-Fe-B MAGNETIC MATERIAL AND METHOD FOR PRODUCING Nd-Fe-B MAGNETIC MATERIAL HAVING THE COMPOSITE PLATING LAYER | |
| CN104451797B (en) | The tin plating processing method of a kind of Tellurobismuthite. matrix and a kind of supplement | |
| CN101532155B (en) | Application process of multi-layer electroplated coinage materials and products thereof | |
| CN106167896A (en) | The rhodanizing technique of the electrical contact that a kind of composite material of molybdenum and copper is made | |
| CN105297011A (en) | Method for preparing super-hydrophobic composite film layer on surface of magnesium alloy | |
| CN103695976A (en) | Treatment method for copper product before electronickelling | |
| CN103361688A (en) | Sanitary product surface treatment method | |
| CN110484919A (en) | The method and surface of decoating liquid and its stripping titanium-containing film are formed with the strip method of the substrate of titanium-containing film | |
| CN109972127A (en) | A kind of preparation method of high anti-corrosion chemical Ni-plating layer | |
| JP5247142B2 (en) | Silver plating method | |
| CN110205662A (en) | A kind of aluminium alloy surface electric plating preprocess method | |
| CN103668132B (en) | A kind of activated solution and the application in electroless nickel plating on magnesium thereof | |
| CN105839160A (en) | Electroplating technique for spectacle frame | |
| CN105483787A (en) | Method for electroplating cellphone housing | |
| CN105780073B (en) | The method of priming of cyanideless electro-plating nickel on a kind of magnesium lithium alloy | |
| CN110714214A (en) | Electroplating pretreatment process for die-casting aluminum alloy | |
| CN109440152A (en) | A kind of iron embryo electroplating technology | |
| CN103526245A (en) | New environment-friendly process for chromium barrel plating after chloride zinc plating | |
| CN112626577B (en) | Preparation method of quartz crystal electrode film | |
| CN104164684A (en) | Method for plating nickel on surface of oxygen-free copper | |
| CN201778140U (en) | Circulation water-saving device for plating line | |
| CN114318448A (en) | Chemical copper-nickel plating process universally used for aluminum alloy matrix | |
| CN106086968A (en) | A kind of electroplating technology of IGBT molybdenio plate surface-coated noble metal | |
| CN103668192A (en) | Four-element zinc-tin-nickel-iron soaking technique of aluminum alloy plate | |
| CN106245084A (en) | A kind of quasiconductor molybdenum sheet rhodanizing technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161130 |