CN113818054A - Energy-saving and environment-friendly nickel plating production process for iron parts - Google Patents
Energy-saving and environment-friendly nickel plating production process for iron parts Download PDFInfo
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- CN113818054A CN113818054A CN202111198051.6A CN202111198051A CN113818054A CN 113818054 A CN113818054 A CN 113818054A CN 202111198051 A CN202111198051 A CN 202111198051A CN 113818054 A CN113818054 A CN 113818054A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 139
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000007747 plating Methods 0.000 title claims abstract description 30
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 5
- 239000011574 phosphorus Substances 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims description 33
- 238000002791 soaking Methods 0.000 claims description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 15
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 239000011651 chromium Substances 0.000 claims description 9
- 238000002161 passivation Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000012864 cross contamination Methods 0.000 claims description 4
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- YTAHJIFKAKIKAV-XNMGPUDCSA-N [(1R)-3-morpholin-4-yl-1-phenylpropyl] N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]carbamate Chemical compound O=C1[C@H](N=C(C2=C(N1)C=CC=C2)C1=CC=CC=C1)NC(O[C@H](CCN1CCOCC1)C1=CC=CC=C1)=O YTAHJIFKAKIKAV-XNMGPUDCSA-N 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005238 degreasing Methods 0.000 claims description 3
- 230000003472 neutralizing effect Effects 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000009713 electroplating Methods 0.000 abstract description 5
- 229910001096 P alloy Inorganic materials 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910000008 nickel(II) carbonate Inorganic materials 0.000 description 2
- ZULUUIKRFGGGTL-UHFFFAOYSA-L nickel(ii) carbonate Chemical compound [Ni+2].[O-]C([O-])=O ZULUUIKRFGGGTL-UHFFFAOYSA-L 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000012465 retentate Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 hydrogen ions Chemical class 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/12—Process control or regulation
-
- 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
- C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
-
- 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
- C25D5/48—After-treatment of electroplated surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Automation & Control Theory (AREA)
- Electroplating Methods And Accessories (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses an energy-saving and environment-friendly nickel plating production process of an iron part, wherein an iron sheet is placed into a 206 high-phosphorus environment-friendly plating solution containing nickel and having the concentration of 5.3-6.0, and is soaked for 15-22 minutes in the environment with the temperature of 88-94 ℃ and the pH value of 4.6-4.8, equipment such as a direct current motor and the like required in common electroplating is not required, the energy is saved, the environment pollution is avoided, the device is not required to be subjected to clear water treatment, meanwhile, the generated chemically deposited NI-P alloy plating layer has few gaps and a smooth surface, and the obtained product plating layer has better compactness.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of electroplating, in particular to an energy-saving and environment-friendly nickel plating production process for iron parts.
[ background of the invention ]
When iron parts are plated, a large amount of pre-treatment oily wastewater is easily generated in the traditional process, and is derived from oil substances coated on the surfaces of various hardware plated parts, automobile plated parts, water-heating plated parts, iron parts and the like, the pre-treatment oily wastewater accounts for about 30% of electroplating wastewater, and cleaning wastewater, electroplating waste liquid and the like of the plated parts.
[ summary of the invention ]
In order to solve the problems, an energy-saving and environment-friendly nickel plating production process for iron parts is provided;
an energy-saving and environment-friendly nickel plating production process for iron parts is characterized by comprising the following steps:
a) carrying out high-temperature oil removal on the iron piece;
b) washing the iron treated in the step a) twice with water;
c) soaking the iron piece in 25% hydrochloric acid for 2-3 minutes to remove rust;
d) washing the iron sheet obtained after the treatment in the step c) twice with water;
e) ultrasonic oil removal is carried out on the iron piece after rust removal;
f) washing the iron piece treated in the step e) with water for two times;
g) soaking the iron sheet in 35% hydrochloric acid for 45-60s to activate;
h) washing the iron piece treated in the step g) with water for two times;
i) soaking the iron sheet in 0.5% ammonia water for 3-5s, and neutralizing the pH value of the surface of the iron sheet;
j) placing the iron sheet neutralized in the step i) into a 206 high-phosphorus environment-friendly plating solution containing nickel and having the concentration of 5.3-6.0, and soaking for 15-22 minutes in an environment with the temperature of 88-94 ℃ and the pH value of 4.6-4.8;
k) washing the iron piece treated in the step j) for two times;
l) carrying out trivalent chromium passivation on the nickel-plated iron piece;
m), washing the iron piece treated in the step l) for two times; (ii) a
n), carrying out hot passivation water washing;
o), drying the iron piece hanger piece water blowing mesh bag piece by drying, and drying by blowing water;
p), drying the iron piece;
q), inspecting the appearance and testing the film thickness and the salt spray of the coating film;
r), packaging and finishing the processing.
Further, the high-temperature oil removal in the step a) is to soak the iron piece for 30-40 minutes at the temperature of 60-70 ℃ by adopting a solution with the oil removal powder concentration of 8%.
Further, the ultrasonic degreasing in the step e) is to place the iron piece into an ultrasonic water tank, and perform ultrasonic cleaning for 18-22 minutes under the condition that the temperature is 55-65 ℃.
Further, the trivalent chromium passivation solution used in the step l) has a trivalent chromium concentration of 1% and a soaking time of 5-10 s.
Furthermore, the temperature of the hot blunt water washing in the step n) is 65-75 ℃, and the soaking time is 5-10 s.
Further, the drying temperature in the step p) is 100-.
Further, in the step q), the film thickness test and the salt spray test are carried out for each sample, and the sample is tested for 2 pcs.
Further, the water washing liquid adopted in the step b), the step d), the step f), the step h), the step k) and the step m) is clear water.
Furthermore, the water washing in the step b), the step d), the step f), the step h), the step k) and the step m) is cleaned in a high-pressure water mode, and the retentate generated after the oil removal in the step a) of the complex piece and/or the deep hole piece and/or the groove piece is cleaned in a high-pressure spray washing mode, so that the cross contamination between the treatment in the subsequent step and other treatment agents is reduced.
The invention puts the iron sheet into the high phosphorus environment-friendly plating solution containing nickel and 206 with the concentration of 5.3-6.0, and soaks for 15-22 minutes under the environment with the temperature of 88-94 ℃ and the PH value of 4.6-4.8, without the equipment such as a direct current motor and the like needed in common electroplating, saves energy, has no environmental pollution, does not need to carry out clear water treatment on the device, and simultaneously, the generated chemical deposition NI-P alloy plating layer has less gaps and smooth surface, and the obtained product plating layer has better compactness;
the step b) of the invention adopts the modes of high-pressure water cleaning and over-high-pressure spray washing, can reduce the water consumption, can clean the retentate generated after the oil removal of the step a) of the complex piece and/or the deep hole piece and/or the groove piece, reduces the cross contamination between the treatment of the subsequent steps and other treatment agents, and ensures that the surface of the workpiece is clean and thorough.
[ description of the drawings ]
FIG. 1 is a process flow diagram of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
a) carrying out high-temperature oil removal on the iron piece, soaking the iron piece for 30-40 minutes at the temperature of 60-70 ℃ by adopting a solution with the oil removal powder concentration of 8%, and dissolving an oil film on the surface into the oil removal liquid;
b) washing the iron treated in the step a) twice, wherein the washing is carried out in a high-pressure water mode, and the retentates generated after the oil removal in the step a) in the complex structure, the deep hole and the groove of the iron piece are cleaned, so that the cross contamination between the treatment in the subsequent step and other treatment agents is reduced;
c) soaking the iron piece in 25% hydrochloric acid for 2-3 minutes to remove rust, and reacting the rust on the iron piece with the 25% hydrochloric acid solution to generate acid and metal oxide, namely double decomposition reaction;
the equation is as follows:
Fe2O3+6HCl＝＝＝2FeCl3+3H2O
ferric chloride is easily dissolved in water and iron rust is dissolved and removed by dilute hydrochloric acid.
d) Washing the iron sheet obtained after the treatment in the step c) twice with water, and removing residues in the step b) in the same way as in the step b);
e) ultrasonic oil removal is carried out on the iron piece after rust removal, the ultrasonic oil removal is to place the iron piece into an ultrasonic water tank, carry out ultrasonic cleaning for 18-22 minutes under the condition that the temperature is 55-65 ℃, and utilize the cavitation action, the acceleration action and the direct current action of ultrasonic waves in liquid to directly and indirectly act on the liquid and dirt, so that the dirt layer is dispersed, emulsified and stripped to achieve the cleaning purpose;
f) washing the iron piece treated in the step e) twice with water, and removing residues in the step b) in the same way as in the step b);
g) soaking the iron sheet in 35% hydrochloric acid for 45-60s, activating to prevent the iron sheet from oxidizing and generating rust again;
h) washing the iron piece treated in the step g) twice with water, and removing residues in the step b) in the same way as in the step b);
i) soaking the iron sheet in 0.5% ammonia water for 3-5s, and neutralizing the pH value of the surface of the iron sheet;
j) placing the iron sheet neutralized in the step i) into a 206 high-phosphorus environment-friendly plating solution containing nickel and having a concentration of 5.3-6.0, and soaking for 15-22 minutes in an environment with a temperature of 88-94 ℃ and a pH value of 4.6-4.8 to generate a layer of compact basic nickel carbonate film on the surface of the iron sheet;
k) washing the iron piece treated in the step j) twice with water, and removing residues in the step b) in the same way as in the step b);
l) carrying out trivalent chromium passivation on the iron piece after nickel plating, wherein the trivalent chromium passivation solution at the passivation liquid level is used, the concentration of the trivalent chromium is 1%, the soaking time is 5-10s, a chromic acid film is generated on the surface of the nickel plating layer, the protection capability of the basic nickel carbonate film is improved, and the outer part of the plating layer is bright and beautiful;
m), washing the iron piece treated in the step l) twice with water, and removing residues in the step as in the step b);
n), carrying out hot blunt water washing, wherein the temperature of the hot blunt water washing is 65-75 ℃, the soaking time is 5-10s, and the specific materials and purposes and the effect of the obtained product are added;
o), drying the iron piece hanger piece water blowing mesh bag piece by drying, and drying by blowing water;
p) drying the iron piece at the temperature of 100 ℃ and 140 ℃ for 6-10 minutes; in cooperation with the step o), quickly drying to dry the surface of the plated part, preventing the plating layer from being damaged due to the corrosive atmosphere of water vapor and carbon dioxide in the air, and simultaneously enabling hydrogen ions in the plating layer to be diffused out of the plating layer in the heat preservation process to prevent the plated part from being damaged by hydrogen embrittlement;
q), inspecting the appearance, testing the film thickness and the salt spray of the coating film, and sampling and detecting the film thickness and the salt spray for each type by 2 pcs;
r), packaging and finishing the processing.
Further, the water washing liquid adopted in the step b), the step d), the step f), the step h), the step k) and the step m) is clear water.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. An energy-saving and environment-friendly nickel plating production process for iron parts is characterized by comprising the following steps:
a) carrying out high-temperature oil removal on the iron piece;
b) washing the iron treated in the step a) twice with water;
c) soaking the iron piece in 25% hydrochloric acid for 2-3 minutes to remove rust;
d) washing the iron sheet obtained after the treatment in the step c) twice with water;
e) ultrasonic oil removal is carried out on the iron piece after rust removal;
f) washing the iron piece treated in the step e) with water for two times;
g) soaking the iron sheet in 35% hydrochloric acid for 45-60s to activate;
h) washing the iron piece treated in the step g) with water for two times;
i) soaking the iron sheet in 0.5% ammonia water for 3-5s, and neutralizing the pH value of the surface of the iron sheet;
j) placing the iron sheet neutralized in the step i) into a 206 high-phosphorus environment-friendly plating solution containing nickel and having the concentration of 5.3-6.0, and soaking for 15-22 minutes in an environment with the temperature of 88-94 ℃ and the pH value of 4.6-4.8;
k) washing the iron piece treated in the step j) for two times;
l) carrying out trivalent chromium passivation on the nickel-plated iron piece;
m), washing the iron piece treated in the step l) for two times; (ii) a
n), carrying out hot passivation water washing;
o), drying the iron piece hanger piece water blowing mesh bag piece by drying, and drying by blowing water;
p), drying the iron piece;
q), inspecting the appearance and testing the film thickness and the salt spray of the coating film;
r), packaging and finishing the processing.
2. The energy-saving and environment-friendly nickel plating production process of the iron part as claimed in claim 1, is characterized in that: in the step a), solution with the degreasing powder concentration of 8% is adopted for degreasing at high temperature, and the iron piece is soaked for 30-40 minutes at the temperature of 60-70 ℃.
3. The energy-saving and environment-friendly nickel plating production process of the iron part as claimed in claim 1, is characterized in that: the ultrasonic oil removal in the step e) is to place the iron piece into an ultrasonic water tank and carry out ultrasonic cleaning for 18-22 minutes under the condition that the temperature is 55-65 ℃.
4. The energy-saving and environment-friendly nickel plating production process of the iron part as claimed in claim 3, characterized in that: the trivalent chromium passivation solution used in the step l) has a trivalent chromium concentration of 1% and a soaking time of 5-10 s.
5. The energy-saving and environment-friendly nickel plating production process of the iron part as claimed in claim 1, is characterized in that: the temperature of the hot blunt water washing in the step n) is 65-75 ℃, and the soaking time is 5-10 s.
6. The energy-saving and environment-friendly nickel plating production process of the iron part as claimed in claim 1, is characterized in that: the drying temperature in the step p) is 100-140 ℃, and the time is 6-10 minutes.
7. The energy-saving and environment-friendly nickel plating production process of the iron part as claimed in claim 1, is characterized in that: and in the step q), the film thickness test and the salt spray test are carried out for each type of sampling detection 2 pcs.
8. The energy-saving and environment-friendly nickel plating production process of the iron part as claimed in claim 1, is characterized in that: the water washing liquid adopted in the steps b), d), f), h), k) and m) is clear water.
9. The energy-saving and environment-friendly nickel plating production process of the iron part as claimed in claim 1, is characterized in that: the water washing in the step b), the step d), the step f), the step h), the step k) and the step m) is carried out by high-pressure water cleaning and high-pressure spray washing, so that the complex parts and/or deep-hole parts and/or groove parts can be cleaned for oil substances, the cross contamination is reduced, the water consumption is reduced, and the surface of the workpiece is clean and thorough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111198051.6A CN113818054A (en) | 2021-10-14 | 2021-10-14 | Energy-saving and environment-friendly nickel plating production process for iron parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111198051.6A CN113818054A (en) | 2021-10-14 | 2021-10-14 | Energy-saving and environment-friendly nickel plating production process for iron parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113818054A true CN113818054A (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111198051.6A Pending CN113818054A (en) | 2021-10-14 | 2021-10-14 | Energy-saving and environment-friendly nickel plating production process for iron parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118039414A (en) * | 2024-04-12 | 2024-05-14 | 珠海市集利发展有限公司 | Nickel plating relay iron sheet and plating process thereof |
-
2021
- 2021-10-14 CN CN202111198051.6A patent/CN113818054A/en active Pending
Non-Patent Citations (3)
| Title |
|---|
| 何晓科 主编: "《节水技术概论》", 30 September 2008, 黄河水利出版社 * |
| 张允诚 等: "《电镀手册》", 31 December 2011, 国防工业出版社 * |
| 徐瑞东等: "全光亮镍磷合金镀层的耐蚀性", 《腐蚀科学与防护技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118039414A (en) * | 2024-04-12 | 2024-05-14 | 珠海市集利发展有限公司 | Nickel plating relay iron sheet and plating process thereof |
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