CN108252987A - A kind of automobile-used fastener with coating - Google Patents
A kind of automobile-used fastener with coating Download PDFInfo
- Publication number
- CN108252987A CN108252987A CN201810292189.4A CN201810292189A CN108252987A CN 108252987 A CN108252987 A CN 108252987A CN 201810292189 A CN201810292189 A CN 201810292189A CN 108252987 A CN108252987 A CN 108252987A
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- CN
- China
- Prior art keywords
- nickel layer
- coating
- fastener
- automobile
- layer
- 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
- 239000011248 coating agent Substances 0.000 title claims abstract description 66
- 238000000576 coating method Methods 0.000 title claims abstract description 66
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 252
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 126
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000002421 anti-septic effect Effects 0.000 claims abstract description 15
- 229910052717 sulfur Inorganic materials 0.000 claims description 26
- 239000011593 sulfur Substances 0.000 claims description 26
- 238000007747 plating Methods 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 28
- 238000009713 electroplating Methods 0.000 abstract description 22
- 230000002411 adverse Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 155
- 229910052804 chromium Inorganic materials 0.000 description 6
- 239000011651 chromium Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 239000011229 interlayer Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 208000014451 palmoplantar keratoderma and congenital alopecia 2 Diseases 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
-
- 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
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
Abstract
The present invention provides a kind of automobile-used fastener with coating applied to technical field of fastening, the automobile-used fastener with coating includes fastener body (1), fastener body (1) outer layer setting coating (2), coating (2) includes semi-gloss nickel layer (3), full light nickel layer (4), layers of chrome (5), fastener body (1) outer surface setting semi-gloss nickel layer (3), semi-gloss nickel layer (3) outer surface sets full light nickel layer (4), full light nickel layer (4) outer surface setting layers of chrome (5), automobile-used fastener of the present invention with coating and automobile-used fastener electro-plating method, it is at low cost, the process that exterior materials are corroded when can stop fastener use, improve fastener entirety antiseptic property, improve case hardness, adapt to various adverse circumstances demands, improve service life and safe to use.
Description
Technical field
The invention belongs to technical field of fastening, are to be related to a kind of automobile-used fastener with coating, this hair more specifically
It is bright to further relate to a kind of automobile-used fastener electro-plating method.
Background technology
Fastener is a kind of extremely wide product of the scope of application.And in fastener in use, fastener often faces
Severe working environment, such as corrosion.And newly have the fastener products in technology, it in use for some time will be because of corrosion resistant
Corrosion energy is insufficient and needs replacing, and toward contact, there are serious security risks.
Invention content
The technical problems to be solved by the invention are:In view of the shortcomings of the prior art, offer is a kind of simple in structure, can stop
The process that exterior materials are corroded during fastener use improves whole antiseptic property, improves case hardness, adapt to various adverse circumstances
Demand improves service life and the automobile-used fastener safe to use with coating.
Solve the problems, such as techniques discussed above, the technical solution that the present invention takes is:
The present invention is a kind of automobile-used fastener with coating, and the automobile-used fastener with coating includes fastener sheet
Body, fastener body outer layer setting coating, coating include semi-gloss nickel layer, full light nickel layer, layers of chrome, the setting of fastener body outer surface
Semi-gloss nickel layer, semi-gloss nickel layer outer surface set full light nickel layer, and full light nickel layer outer surface sets layers of chrome.
The coating further includes high-sulfur layer, and high-sulfur layer is arranged between semi-gloss nickel layer and full light nickel layer.
The coating further includes micropore nickel layer, and micropore nickel layer is arranged between full light nickel layer and layers of chrome.
The thickness of the semi-gloss nickel layer of the coating is arranged between 12 μm -25 μm, and the thickness of full light nickel layer is arranged on 6 μ
Between m-15 μm, the thickness of layers of chrome is arranged between 0.15 μm -0.6 μm.
The thickness of the high-sulfur layer of the coating is arranged between 2 μm -8 μm.
The thickness of the micropore nickel layer of the coating is arranged between 1 μm -6 μm.
Potential difference between the full light nickel layer and semi-gloss nickel layer is arranged between 110mV-140mV.
Potential difference between the full light nickel layer and high-sulfur layer of the coating is arranged between 20mV-60mV.
Potential difference between the micropore nickel layer and full light nickel layer is arranged between 20mV-60mV, micropore nickel layer it is micro-
Hole count sets 20,000 or more.
The invention further relates to a kind of automobile-used fastener electro-plating method, the plating step of the automobile-used fastener electro-plating method
For fastener body 1) is moved to electroplating pool position, semi-gloss nickel layer first is electroplated in fastener body outer surface;2) again in semi-gloss
Full light nickel layer is electroplated in nickel layer outer surface;3) and then in full light nickel layer outer surface electrodeposited chromium layers;4) fastener body batch is carried out
Above-mentioned steps complete automobile-used fastener body electroplating processes in batches, form automobile-used fastener finished product in batches.
After semi-gloss nickel layer is electroplated in fastener body outer surface, in semi-gloss nickel layer electroplating surface high-sulfur layer, then again in height
Full light nickel layer is electroplated in sulphur layer outer surface.
After full light nickel layer is electroplated in the high-sulfur layer outer surface of fastener body, then in full light nickel layer outer surface plating micro vias nickel
Layer, then again in microporous nickel layer surface electrodeposited chromium layers.
It,, will when full light nickel layer is electroplated by the thickness control of semi-gloss nickel layer between 12 μm -25 μm when semi-gloss nickel layer is electroplated
The thickness control of full light nickel layer is between 6 μm -15 μm, during electrodeposited chromium layers, by the thickness control of layers of chrome 0.15 μm -0.6 μm it
Between.
When high-sulfur layer is electroplated, by the thickness control of high-sulfur layer between 2 μm -8 μm;During plating micro vias nickel layer, by microporous nickel
The thickness control of layer is between 1 μm -6 μm.
During to fastener body electroplating processes, the potential difference between full light nickel layer and semi-gloss nickel layer is controlled in 110mV-
Between 140mV.
During to fastener body electroplating processes, the potential difference between full light nickel layer and high-sulfur layer is arranged on 20mV-60mV
Between, between the potential difference between micropore nickel layer and full light nickel layer is arranged on 20mV-60mV, the number cells of micropore nickel layer are set
Put 20,000 or more.
Technical solution using the present invention can obtain following advantageous effect:
Automobile-used fastener of the present invention with coating and automobile-used fastener electro-plating method, in the fastening of automobile-used fastener
After part ontology completes, electroplating processes are carried out to fastener body, coating is formed on fastener body surface, and coating includes
Multilayer, every layer of plating formation successively of coating.In each layer structure of coating, semi-gloss nickel layer can effectively improve automobile-used fastener
Antiseptic property, full light nickel layer can improve the shiny appearance degree after automobile-used fastener is formed, and layers of chrome can improve automobile-used fastening
The case hardness of part, in such manner, it is possible to form the protection for effectively improving automobile-used fastener overall performance in fastener body outer surface
The coating of property.The cooperation of coating interlayer can improve automobile-used fastener performance and used life comprehensively, and automobile-used fastener use is in vapour
Che Shanghou can improve ride safety of automobile.Automobile-used fastener of the present invention with coating and automobile-used fastener plating side
Method, at low cost, the process that exterior materials are corroded when can stop fastener use improve fastener entirety antiseptic property, improve
Case hardness, adapts to various adverse circumstances demands, improves service life and safe to use.
Description of the drawings
To this specification, the content expressed by each attached drawing and the label in figure make brief description below:
Fig. 1 is the schematic cross-sectional view of the automobile-used fastener of the present invention with coating;
Fig. 2 is the schematic cross-sectional view in the A-A faces of the automobile-used fastener with coating described in Fig. 1;
Attached drawing acceptance of the bid, which is remembered, is respectively:1st, fastener body;2nd, coating;3rd, semi-gloss nickel layer;4th, full light nickel layer;5th, layers of chrome;6、
High-sulfur layer;7th, micropore nickel layer.
Specific embodiment
Below against attached drawing, by the description of the embodiment, each structure for example involved to the specific embodiment of the present invention
The works such as mutual alignment and connection relation, the effect of each section and operation principle between the shape of part, construction, each section are further
Detailed description:
As shown in attached drawing 1, attached drawing 2, the present invention is a kind of automobile-used fastener with coating, described automobile-used tight with coating
Firmware includes fastener body 1,1 outer layer of fastener body setting coating 2, and coating 2 includes semi-gloss nickel layer 3, full light nickel layer 4, chromium
Layer 5,1 outer surface of fastener body setting semi-gloss nickel layer 3,3 outer surface of semi-gloss nickel layer sets full light nickel layer 4, complete 4 appearance of light nickel layer
Face sets layers of chrome 5.After the fastener body 1 of automobile-used fastener completes, electricity is carried out to fastener body 1 for above structure
Plating forms coating on 1 surface of fastener body, and coating includes multilayer, every layer of plating formation successively of coating.In coating
Each layer structure in, semi-gloss nickel layer 3 can effectively improve the antiseptic property of automobile-used fastener, and full light nickel layer 4 can improve automobile-used
Fastener formed after shiny appearance degree, layers of chrome 5 can improve the case hardness of automobile-used fastener, in such manner, it is possible in fastener
1 outer surface of ontology forms the protective coating for effectively improving automobile-used fastener overall performance.The cooperation of coating interlayer can be comprehensive
Automobile-used fastener performance and used life is improved, after automobile-used fastener use is on automobile, ride safety of automobile can be improved.This
The invention automobile-used fastener with coating, simple in structure, at low cost, exterior materials are corroded when can stop fastener use
Process, improve whole antiseptic property, improve case hardness, adapt to various adverse circumstances demands, improve service life and use
Safety.
The coating 2 further includes high-sulfur layer 6, and high-sulfur layer 6 is arranged between semi-gloss nickel layer 3 and full light nickel layer 4.High-sulfur layer
Setting, can widen potential difference, improve the whole antiseptic property of fastener, improve service life.
The coating 2 further includes micropore nickel layer 7, and micropore nickel layer 7 is arranged between full light nickel layer 4 and layers of chrome 5.Micropore nickel layer
7 can block the process of corrosion to the damage of fastener, improve fastener antiseptic property comprehensively.
The thickness of the semi-gloss nickel layer 3 of the coating 2 is arranged between 12 μm -25 μm, and the thickness of full light nickel layer 4 is arranged on
Between 6 μm -15 μm, the thickness of layers of chrome 5 is arranged between 0.15 μm -0.6 μm.The thickness setting of the high-sulfur layer 6 of the coating 2
Between 2 μm -8 μm.The thickness of the micropore nickel layer 7 of the coating 2 is arranged between 2 μm -6 μm 1 μm -6 μm.Above structure
In, semi-gloss nickel layer is main erosion resistant coating, and thickness is thick, and full photosphere is combination with decorative surfaces bright layer, should be appropriate thick but too thick
Cost of idleness and aliquation is also easy to produce, and high-sulfur nickel plays the potential difference drawn high between full light and semi-gloss nickel, appropriate all right, micropore
Nickel essentially consists in the control of its micropore quantity, disperse degree, does not lie in thickness.
Potential difference between the full light nickel layer 4 and semi-gloss nickel layer 3 is arranged between 110mV-140mV.The plating
Potential difference between the full light nickel layer 4 of layer 2 and high-sulfur layer 6 is arranged between 20mV-60mV.During electrochemical corrosion
There is the principle of cathodic protection during two kinds of metal contacts, widening potential difference means to protect low potential layer, i.e. bottom is protected, institute
Be conducive to improve the protective capacities of bottom with the potential difference for widening plating interlayer.
Potential difference between the micropore nickel layer 7 and full light nickel layer 4 is arranged between 20mV-60mV, micropore nickel layer 7
Number cells set 20,000 or more.Microporous nickel has plated post-processing chrome layer, and micropore powder plays the work of insulation for a non-metallic particle object
With even if layers of chrome surface and layers of chrome in micropore nickel layer, nickel layer are not a continuous surfaces, playing insulation resistance when corroding
Disconnected effect prevents from corroding further diffusion, and certain micropore powder can excessively reduce case hardness and outer nor The more the better
Sight degree.And in the present invention it is suitable number.
It is at low cost the invention further relates to a kind of step is simple, when can stop fastener use exterior materials corrode into
Journey improves fastener entirety antiseptic property, improves case hardness, adapts to various adverse circumstances demands, improves service life and makes
With the automobile-used fastener electro-plating method of safety.
The plating step of the automobile-used fastener electro-plating method is:1) fastener body 1 is moved to electroplating pool position,
First in 1 outer surface of fastener body plating semi-gloss nickel layer 3;2) full light nickel layer 4 is electroplated in 3 outer surface of semi-gloss nickel layer again;3) then
In complete 4 outer surface electrodeposited chromium layers 5 of light nickel layer;4) above-mentioned steps are carried out in batches to fastener body 1, completes automobile-used fastener in batches
1 electroplating processes of ontology form automobile-used fastener finished product in batches.The above method can process antiseptic property and significantly be optimized
Automobile-used fastener.After automobile, corrosion resistance is high for the fastener use.Through CASS verification experimental verifications, method of the invention adds
The automobile-used fastener that work goes out, the anti-corrosion time can be more than 72 hours, and fastener of the prior art only has 24 hours.
After 1 outer surface of fastener body plating semi-gloss nickel layer 3, in 3 electroplating surface high-sulfur layer 6, Ran Houzai of semi-gloss nickel layer
Full light nickel layer 4 is electroplated in 6 outer surface of high-sulfur layer.After full light nickel layer 4 is electroplated in 6 outer surface of high-sulfur layer of fastener body 1, then
Complete 4 outer surface plating micro vias nickel layer 7 of light nickel layer, then again in 7 electroplating surface layers of chrome 5 of micropore nickel layer.3 layers of semi-gloss nickel layer is electroplated
When, by the thickness control of semi-gloss nickel layer 3 between 12 μm -25 μm, when full light nickel layer 4 is electroplated, by the thickness control of full light nickel layer 4
Between 6 μm -15 μm, during electrodeposited chromium layers 5, by the thickness control of layers of chrome 5 between 0.15 μm -0.6 μm.
In automobile-used fastener electro-plating method of the present invention, when high-sulfur layer 6 is electroplated, by the thickness control of high-sulfur layer 62
Between μm -8 μm;During plating micro vias nickel layer 7, by the thickness control of micropore nickel layer 7 between 1 μm -6 μm.To 1 electricity of fastener body
During plating, the potential difference between full light nickel layer 4 and semi-gloss nickel layer 3 is controlled between 110mV-140mV.To fastener body
During 1 electroplating processes, between the potential difference between full light nickel layer 4 and high-sulfur layer 6 is arranged on 20mV-60mV, by 7 He of micropore nickel layer
Potential difference between full light nickel layer 4 is arranged between 20mV-60mV, and the number cells of micropore nickel layer 7 are set 20,000 or more.
Automobile-used fastener of the present invention with coating and automobile-used fastener electro-plating method, in the fastening of automobile-used fastener
After part ontology completes, electroplating processes are carried out to fastener body, coating is formed on fastener body surface, and coating includes
Multilayer, every layer of plating formation successively of coating.In each layer structure of coating, light nickel layer can effectively improve automobile-used fastener
Antiseptic property, full light nickel layer can improve the shiny appearance degree after automobile-used fastener is formed, and layers of chrome can improve automobile-used fastener
Case hardness, effectively improve the protectiveness of automobile-used fastener overall performance in such manner, it is possible to be formed in fastener body outer surface
Coating.The cooperation of coating interlayer can improve automobile-used fastener performance and used life comprehensively, and automobile-used fastener use is in automobile
After upper, ride safety of automobile can be improved.Automobile-used fastener of the present invention with coating and automobile-used fastener electro-plating method,
Process at low cost, that exterior materials are corroded when can stop fastener use improves fastener entirety antiseptic property, improves surface
Hardness, adapts to various adverse circumstances demands, improves service life and safe to use.
Illustrative description is carried out to the present invention above in conjunction with attached drawing, it is clear that concrete implementation of the present invention is not by above-mentioned
The limitation of mode, as long as employing the various improvement or not improved by this of inventive concept and technical scheme of the present invention progress
The design of invention and technical solution directly apply to other occasions, within the scope of the present invention.
Claims (8)
1. a kind of automobile-used fastener with coating, it is characterised in that:The automobile-used fastener with coating includes fastener sheet
Body (1), fastener body (1) outer layer setting coating (2), coating (2) include semi-gloss nickel layer (3), full light nickel layer (4), layers of chrome
(5), fastener body (1) outer surface setting semi-gloss nickel layer (3), semi-gloss nickel layer (3) outer surface set full light nickel layer (4), Quan Guang
Nickel layer (4) outer surface setting layers of chrome (5).
2. the automobile-used fastener according to claim 1 with coating, it is characterised in that:The coating (2) further includes high-sulfur
Layer (6), high-sulfur layer (6) are arranged between semi-gloss nickel layer (3) and full light nickel layer (4).
3. the automobile-used fastener according to claim 1 or 2 with coating, it is characterised in that:The coating (2) further includes micro-
Hole nickel layer (7), micropore nickel layer (7) are arranged between full light nickel layer (4) and layers of chrome (5).
4. the automobile-used fastener according to claim 2 with coating, it is characterised in that:The high-sulfur layer of the coating (2)
(6) thickness is arranged between 2 μm -8 μm.
5. the automobile-used fastener according to claim 3 with coating, it is characterised in that:The microporous nickel of the coating (2)
The thickness of layer (7) is arranged between 1 μm -6 μm.
6. the automobile-used fastener constructions according to claim 1 or 2 for improving antiseptic property, it is characterised in that:Described is complete
Potential difference between light nickel layer (4) and semi-gloss nickel layer (3) is arranged between 110mV-140mV.
7. the automobile-used fastener constructions of the raising antiseptic property according to claim 2 or 4, it is characterised in that:The plating
Potential difference between the layer full light nickel layer (4) of (2) and high-sulfur layer (6) is arranged between 20mV-60mV.
8. the automobile-used fastener constructions according to claim 3 for improving antiseptic property, it is characterised in that:The microporous nickel
Potential difference between layer (7) and full light nickel layer (4) is arranged between 20mV-60mV, the number cells setting 20,000 of micropore nickel layer (7)
More than a.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810292189.4A CN108252987A (en) | 2018-03-30 | 2018-03-30 | A kind of automobile-used fastener with coating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810292189.4A CN108252987A (en) | 2018-03-30 | 2018-03-30 | A kind of automobile-used fastener with coating |
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Publication Number | Publication Date |
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CN108252987A true CN108252987A (en) | 2018-07-06 |
Family
ID=62748052
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CN201810292189.4A Pending CN108252987A (en) | 2018-03-30 | 2018-03-30 | A kind of automobile-used fastener with coating |
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CN (1) | CN108252987A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111549360A (en) * | 2020-04-21 | 2020-08-18 | 洛阳双瑞特种装备有限公司 | Method for solving corrosion, rust and breakage of alloy steel fastener for ocean engineering |
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US4002595A (en) * | 1973-12-27 | 1977-01-11 | E. I. Du Pont De Nemours And Company | Electroplatable polypropylene compositions |
CN102317504A (en) * | 2009-02-13 | 2012-01-11 | 日产自动车株式会社 | Chrome-plated part and manufacturing method of the same |
CN202358015U (en) * | 2011-11-28 | 2012-08-01 | 宁波四维尔工业股份有限公司 | Electroplating trim for automobile |
CN104775142A (en) * | 2015-03-11 | 2015-07-15 | 嘉兴敏惠汽车零部件有限公司 | Ultra-corrosion-resistant nickel-chromium plating component and manufacturing method thereof |
-
2018
- 2018-03-30 CN CN201810292189.4A patent/CN108252987A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4002595A (en) * | 1973-12-27 | 1977-01-11 | E. I. Du Pont De Nemours And Company | Electroplatable polypropylene compositions |
CN102317504A (en) * | 2009-02-13 | 2012-01-11 | 日产自动车株式会社 | Chrome-plated part and manufacturing method of the same |
CN202358015U (en) * | 2011-11-28 | 2012-08-01 | 宁波四维尔工业股份有限公司 | Electroplating trim for automobile |
CN104775142A (en) * | 2015-03-11 | 2015-07-15 | 嘉兴敏惠汽车零部件有限公司 | Ultra-corrosion-resistant nickel-chromium plating component and manufacturing method thereof |
Non-Patent Citations (1)
Title |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111549360A (en) * | 2020-04-21 | 2020-08-18 | 洛阳双瑞特种装备有限公司 | Method for solving corrosion, rust and breakage of alloy steel fastener for ocean engineering |
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