CN203593786U - Cyanide-free alkali galvanized composite layer for auto parts - Google Patents
Cyanide-free alkali galvanized composite layer for auto parts Download PDFInfo
- Publication number
- CN203593786U CN203593786U CN201320684596.2U CN201320684596U CN203593786U CN 203593786 U CN203593786 U CN 203593786U CN 201320684596 U CN201320684596 U CN 201320684596U CN 203593786 U CN203593786 U CN 203593786U
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- China
- Prior art keywords
- layer
- auto parts
- composite layer
- zinc coating
- passivation layer
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- Expired - Lifetime
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- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 239000003513 alkali Substances 0.000 title abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 34
- 239000011701 zinc Substances 0.000 claims abstract description 34
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 238000002161 passivation Methods 0.000 claims abstract description 25
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 16
- 239000011651 chromium Substances 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000007747 plating Methods 0.000 claims description 19
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims description 16
- 239000011159 matrix material Substances 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 11
- 238000005260 corrosion Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000009713 electroplating Methods 0.000 abstract description 4
- 239000002585 base Substances 0.000 abstract description 2
- 238000004017 vitrification Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 26
- 238000005406 washing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 1
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910021555 Chromium Chloride Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- HSSJULAPNNGXFW-UHFFFAOYSA-N [Co].[Zn] Chemical compound [Co].[Zn] HSSJULAPNNGXFW-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Electroplating Methods And Accessories (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
A cyanide-free alkali galvanized composite layer for auto parts comprises a base body, and an electroplated composite layer electroplated on a steel material, and is characterized in that the electroplated composite layer electroplated on the steel material comprises a zinc coating, a passivation layer coated on the zinc coating and a closing layer coated on the passivation layer. The composite layer adopts cyanide-free alkali galvanization, has good corrosion resistance, and can reach various corrosion-resistant standards in combination with the blue or colour chromium trivalent passivation layer; a vitrification transparent film is coated on a passive film and can well protect the passive film, and as a result, the corrosion resistance and high humidity of the auto parts can be improved to the maximum extent. Meanwhile, the translucent closing layer has no affect on the electroplating appearance effect.
Description
Technical field
The utility model belongs to Metal plating field, is specifically related to a kind of non-cyanogen alkaline zinc plating composite layer for auto parts machinery.
Background technology
Along with universal in China of automobile, people are also more and more higher to the requirement of auto parts machinery quality.At present, an automobile fitment material overwhelming majority used is ferrous materials, as the needs that extend motor live time, automobile steel material surface is processed, and it is very important strengthening its non-corrosibility, heat-shock resistance and aesthetic property.
In automobile steel accessory preservative property field of electroplating, mainly adopt zincincation.Zinc coating is one of most important protective coating of steel-iron components, and in dry environment, zinc coating is very stable, but in hot and humid environment, the solidity to corrosion of zinc coating is poor.With other metallographic phase ratios, zinc is relatively cheap and a kind of metal of easy plating, belongs to low value corrosion protection electrolytic coating.Steel zinc coating is anodic coating, good electro-chemical protection can be provided and be widely used.Along with scientific and technological development, the raising that corrosion resistance coating is required, protective zinc coating is changed to alloying and Composite by single zinc coating.What research application was at present more is the base binary alloy plating that zinc and iron family metal form, as alloy layers such as zinc-iron, zinc cobalt, zinc-nickels, three kinds of alloy layer good corrosion resistances, but due to the content (6%～20%) of nickel in coating, the content (0.15%～1.10%) of cobalt is higher, and it is more difficult to originate, and cost is higher, difficult universal utilization the on a large scale that is applicable to auto parts machinery.
In recent years, chromating technique has been widely used in the Passivation Treatment of electro-galvanized layer, and the chromium in passivation rear oxidation film is to exist with sexavalence form, but sexavalent chrome toxicity is large, is again carcinogenic substance, serious environment pollution.Along with the raising of people's environmental consciousness, the application of sexavalent chrome in electroplating industry is produced is subject to strict restriction gradually, the more employing trivalent chromium passivations of surface passivation of current Hardware fitting, and the passive film that existing trivalent chromium passivation process forms does not have self-repairing capability, after part bumps, its solidity to corrosion can not reach the standard of traditional sexavalent chrome passive film, quality is unstable, and passivation film thickness and color are difficult to control.
Summary of the invention
In order to overcome the deficiency of existing auto parts machinery electroplating technology, this application is novel provides a kind of non-cyanogen alkaline zinc plating composite layer for auto parts machinery, improve erosion resistance and the high thermal resistance of auto parts machinery, extend the work-ing life of auto parts machinery, improve accessory top layer quality of colour simultaneously.
The technical solution of the utility model is as follows:
A kind of non-cyanogen alkaline zinc plating composite layer for auto parts machinery, comprise matrix, electroplate the composite electroplated layer on steel, the composite electroplated layer of described plating on steel by zinc coating, cover the passivation layer on zinc coating and the sealer coat that covers on passivation layer forms, described sealer coat is the closing membrane of silicon sol class, be specially the vitrified transparent film of one deck, thickness is 1.2～1.8 μ m.
Described zinc coating covers on auto-parts plating piece body, and thickness is 9-15 μ m.
Described passivation layer is trivalent chromium blueness or colored passive films, and wherein the thickness of the blue passive film of trivalent chromium is 150～200nm, and the thickness of trivalent chromium colorful passive film is 250～400nm.
The beneficial effects of the utility model are:
1, the utility model adopts the zinc coating of non-cyanide alkali galvanizing technique formation as the first layer protective layer of auto parts machinery, HUMAN HEALTH is not worked the mischief, and passivation layer composition is mainly trivalent chromium compound, not containing sexavalent chrome, not only economy but also environmental protection are simultaneously strong with galvanized layer combining capacity;
2, non-cyanide alkali zinc coating solidity to corrosion is good, coordinates blueness or colored trivalent chromium passivation layer, can reach multiple corrosion-resistant standard.On passive film, cover the vitrified transparent film of one deck, passive film is played to good protection effect, can farthest improve the erosion resistance of auto parts machinery, transparent sealer coat does not affect plating appearance effect simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1-matrix, 2-zinc coating, 3-passivation layer, 4-sealer coat.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1, a kind of non-cyanogen alkaline zinc plating composite layer for auto parts machinery, comprises matrix 1, electroplates the composite electroplated layer on steel, and wherein composite electroplated layer is made up of zinc coating 2, passivation layer 3 and sealer coat 4.
The utility model is in concrete operations time-division following steps:
1, pre-treatment: accessory surface is carried out the operation of " alkali electroless oil removing → washing → alkaline anode electrolysis oil removing → washing → pickling (30%HCl) → washing → electrolysis is except film (anode) → washing → activation (10%HCl) → washing ", reach high strength bond power;
2, zinc coating: plate special zinc coating on accessory after treatment, thickness, at 9-15 μ m, carries out the operation of " washing twice → nitric acid (1%) washes → wash " after dry;
3, plating passivation layer: the Several Thiourea Derivatives on Zinc Plate Surface after processed covers special trivalent chromium blueness or colored passive films, thickness is at 150～400nm, dry after washing after dry;
4, plating sealer coat: plate the vitrified transparent film of one deck as encapsulant on passivation layer after treatment, thickness is at 1.2～1.8 μ m.
Claims (3)
1. the non-cyanogen alkaline zinc plating composite layer for auto parts machinery, comprise matrix, electroplate the composite electroplated layer on steel, it is characterized in that: the composite electroplated layer of described plating on steel by zinc coating, cover the passivation layer on zinc coating and the sealer coat that covers on passivation layer forms, described sealer coat is the closing membrane of silicon sol class, be specially the vitrified transparent film of one deck, thickness is 1.2～1.8 μ m.
2. the non-cyanogen alkaline zinc plating composite layer for auto parts machinery according to claim 1, is characterized in that: described zinc coating covers on auto-parts plating piece body, and thickness is 9-15 μ m.
3. the non-cyanogen alkaline zinc plating composite layer for auto parts machinery according to claim 1, described passivation layer is trivalent chromium blueness or colored passive films, wherein the thickness of the blue passive film of trivalent chromium is 150～200nm, and the thickness of trivalent chromium colorful passive film is 250～400nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684596.2U CN203593786U (en) | 2013-11-01 | 2013-11-01 | Cyanide-free alkali galvanized composite layer for auto parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684596.2U CN203593786U (en) | 2013-11-01 | 2013-11-01 | Cyanide-free alkali galvanized composite layer for auto parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203593786U true CN203593786U (en) | 2014-05-14 |
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|---|---|---|---|
| CN201320684596.2U Expired - Lifetime CN203593786U (en) | 2013-11-01 | 2013-11-01 | Cyanide-free alkali galvanized composite layer for auto parts |
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| Country | Link |
|---|---|
| CN (1) | CN203593786U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112911A (en) * | 2015-09-09 | 2015-12-02 | 宁波亚大金属表面处理有限公司 | Surface treatment process for cooling water pipe joint assembly |
| CN105132906A (en) * | 2015-09-09 | 2015-12-09 | 宁波亚大金属表面处理有限公司 | Surface treatment process for fuel pipe union assembly of engine |
| CN105132907A (en) * | 2015-09-09 | 2015-12-09 | 宁波亚大金属表面处理有限公司 | Surface treatment process for eye joint of brake pipe |
| CN106544490A (en) * | 2016-10-28 | 2017-03-29 | 浙江康盛股份有限公司 | A kind of cooling compound zinc-plated military green steel pipe and its manufacture method |
| CN108396342A (en) * | 2018-03-29 | 2018-08-14 | 珠海市玛斯特五金塑胶制品有限公司 | Full-automatic galvanizing system and method |
| CN113463141A (en) * | 2021-06-28 | 2021-10-01 | 成都飞机工业（集团）有限责任公司 | Method for improving acid-resistant salt spray corrosion resistance of zinc coating |
-
2013
- 2013-11-01 CN CN201320684596.2U patent/CN203593786U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112911A (en) * | 2015-09-09 | 2015-12-02 | 宁波亚大金属表面处理有限公司 | Surface treatment process for cooling water pipe joint assembly |
| CN105132906A (en) * | 2015-09-09 | 2015-12-09 | 宁波亚大金属表面处理有限公司 | Surface treatment process for fuel pipe union assembly of engine |
| CN105132907A (en) * | 2015-09-09 | 2015-12-09 | 宁波亚大金属表面处理有限公司 | Surface treatment process for eye joint of brake pipe |
| CN106544490A (en) * | 2016-10-28 | 2017-03-29 | 浙江康盛股份有限公司 | A kind of cooling compound zinc-plated military green steel pipe and its manufacture method |
| CN108396342A (en) * | 2018-03-29 | 2018-08-14 | 珠海市玛斯特五金塑胶制品有限公司 | Full-automatic galvanizing system and method |
| CN113463141A (en) * | 2021-06-28 | 2021-10-01 | 成都飞机工业（集团）有限责任公司 | Method for improving acid-resistant salt spray corrosion resistance of zinc coating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Pu Haili Inventor after: Wang Jianhua Inventor after: Li Haiwan Inventor after: Yin Zisheng Inventor before: Wang Jianhua |
|
| COR | Change of bibliographic data | ||
| CP03 | Change of name, title or address |
Address after: 510000 105, No. 2, Tianyuan East Road, Yonghe Economic Zone, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangdong Dazhi Chemical Technology Co.,Ltd. Address before: Room 911-912, building 2, Tian'an science and technology industry building, No. 555, North Panyu Avenue, Panyu District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Haikeshun Surface Treatment Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |
|
| CX01 | Expiry of patent term |