CN201908133U - Iridescent passivation galvanized composite layer of hinge - Google Patents
Iridescent passivation galvanized composite layer of hinge Download PDFInfo
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- CN201908133U CN201908133U CN2010205985172U CN201020598517U CN201908133U CN 201908133 U CN201908133 U CN 201908133U CN 2010205985172 U CN2010205985172 U CN 2010205985172U CN 201020598517 U CN201020598517 U CN 201020598517U CN 201908133 U CN201908133 U CN 201908133U
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Abstract
The utility model belongs to the technical field of surface treatment process of metal parts, and relates to a blue passivation galvanized composite layer of a hinge, comprising a galvanized layer and a blue passivation layer, wherein the galvanized layer is plated on the surface of a hinge matrix, and the blue passivation layer is covered on the outer surface of the galvanized layer; the component of the galvanized layer is zinc, and the low foam type potassium chloride zinc plating process is adopted, and the preferred thickness is 5-8mum; and the blue passivation layer is a compound colloid film formed by trivalent chromium compounds, crystallization water, metallic ions and the like, and the preferred thickness is 100-300nm. The blue passivation galvanized composite layer of a hinge has good combination of galvanized layer and the passivation layer, the passivation layer is difficult to peel, fall off and discolor; and the surface is bright, fine and smooth; the blue passivation galvanized composite layer of a hinge has high corrosion resistance, low brittleness and good temperature resistance, and is applicable to the fields of automobiles, electrical apparatuses and the like.
Description
Technical field
The utility model belongs to metal part surface treatment process technical field, is specifically related to the zinc-plated composite bed of blue passivation of hinge.
Background technology
Hinge is a kind of common mechanical fitting, is generally iron and steel and makes, and zinc-plated processing is carried out on the surface, and the zinc coating of hinge provides by Repone K is zinc-plated usually.Potassium chloride zinc plating process is divided into many alveolitoids technology and low alveolitoid technology, many alveolitoids potassium chloride zinc plating process is because chemical reaction is violent, can not adopt and inflate, and the zinc coating that provides is mingled with greatly, to the passive film poor adhesive force, cause passive film insecure, fragility is big, a little less than the slushing oil, salt-fog test does not reach requirement; Low alveolitoid potassium chloride zinc plating process can be taked to inflate, and can accelerate sedimentation velocity, and the zinc coating that provides is smooth, bright, solidity to corrosion is better, low price, can be on the bigger base material of surface treatment difficulty such as ironcasting and quenching part plating.In order further to improve the resistance to corrosion of zinc coating, can improve the protective of zinc coating greatly and increase surface aesthetic at the higher passive film of zinc coating surface coverage one deck stability.The sticking power of passive film has direct relation with the cleanliness factor, the dry aging method of rete and the thickness of rete that form the passive film interface.Along with hinge in the particularly application in high-end field such as automobile and electric equipment products of various industrial circles, solidity to corrosion, luminance brightness to hinge surface require more and more higher, the salt-fog test general requirement reaches 72 hours, and the hinge surface that conventional art provides is decorated protective layer and is difficult to reach above-mentioned requirements.
Summary of the invention
The purpose of this utility model is to provide a kind of zinc-plated composite bed of blue passivation that is used for hinge, satisfies coating light, solidity to corrosion height, resistant to elevated temperatures requirement, and hinge can be used in automobile and electric equipment products field that corrosion is had relatively high expectations.
The technical scheme of the utility model patent is as follows: the zinc-plated composite bed of blue passivation of hinge, comprise zinc coating and blue passivation layer, and zinc coating is plated on the hinge matrix surface, and blue passivation layer covers the appearance of zinc coating.
Described zinc coating composition is a zinc, and technology is zinc-plated for low alveolitoid Repone K, preferred 5～8 μ m of thickness.
Described blue passivation layer is the compound colloidal film that is made of a kind of trivalent chromium compound, crystal water and metal ion etc., the preferred 100～300nm of thickness.
The beneficial effects of the utility model are:
1, zinc coating adopts low alveolitoid potassium chloride zinc plating process, reaches surfacing light, fragility is low, solidity to corrosion is strong advantage;
2, passivation layer chemical rightenning zinc coating, the surface is very bright, careful, level and smooth; Solidity to corrosion is strong, can pass through 72 hours medium-sized salt-fog tests, improves 8～10 times than the zinc coating solidity to corrosion of no passivation layer, has good temperature tolerance, even also harmless its solidity to corrosion of high temperature;
3, be combined between zinc coating and the passivation layer, passivation layer is difficult for peeling, comes off, variable color;
4, zincincation does not contain prussiate, and passivation layer does not contain sexavalent chrome, and environmental pollution is little;
5, the hinge that has composite bed that the utility model provides is because character such as its solidity to corrosion is strong, the good surface-brightening of temperature tolerance are applicable to high-end product scopes such as automobile and electrical equipment.
Description of drawings
Accompanying drawing is a structural representation of the present utility model, and among the figure, 1 is the hinge matrix, and 2 is zinc coating, and 3 is blue passivation layer.
Embodiment
Be described further below in conjunction with the embodiment of accompanying drawing the utility model patent:
As shown in the figure, the zinc-plated composite bed of blue passivation of hinge comprises zinc coating (2) and blue passivation layer (3), and zinc coating is plated on hinge matrix (1) surface, and blue passivation layer (3) covers the appearance of zinc coating (2).Preferred 5～8 μ m of zinc coating (2) thickness, the preferred 100～300nm of blue passivation layer (3) thickness.
Realize that method of the present utility model is:
1, pre-treatment: adopt technologies such as degreasing, rust cleaning, texturing that hinge is carried out pre-treatment, to increase the conjugation between zinc coating and the hinge matrix;
2, zinc-plated: as to adopt the low alveolitoid potassium chloride zinc plating process of slightly acidic, in zinc bath, put the about 60 ℃ hot water of 1/3 amount, add boric acid in 25～40g/L ratio, add Repone K in 140～220g/L ratio again after the dissolving, stirring and dissolving adds zinc chloride in 30～70g/L ratio again, in groove, squeeze into a certain amount of gas, accelerate sedimentation velocity, add water to proper volume simultaneously, add softening agent in 20～40ml/L ratio, again the gloss-imparting agent of the 1～3ml/L ratio water dilution back with 2～3 times is added, after the fierce stirring, add hinge and electroplate, form the zinc coating of 5～8 μ m at the hinge matrix surface.
3, clean: washing, with 0.5% nitric acid bright dipping, washing again.
4, passivation: adopt the blue passivation technology of trivalent chromium, under 20～40 ℃, the blunt agent solution of trivalent chrome blue with 80～110ml/L ratio carries out blue passivation, add the blunt supplement of trivalent chrome blue in the 5000dm2/L ratio during this time and carry out the adjustment of pH value, passivation time 30～60sec forms the blue passivation layer of 100～300nm at the zinc coating table.
5, aftertreatment: discharging, separation, cleaning.
Claims (3)
1. the zinc-plated composite bed of the chromatic passivation of hinge comprises zinc coating and blue passivation layer, and it is characterized in that: zinc coating is plated on the hinge matrix surface, and blue passivation layer covers the appearance of zinc coating.
2. the zinc-plated composite bed of the chromatic passivation of hinge according to claim 1, it is characterized in that: described zinc coating composition is a zinc, selects low alveolitoid potassium chloride zinc plating process, preferred 5～8 μ m of thickness.
3. the zinc-plated composite bed of the chromatic passivation of hinge according to claim 1, it is characterized in that: described blue passivation layer is by a kind of compound colloidal film, the preferred 100～300nm of thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205985172U CN201908133U (en) | 2010-11-09 | 2010-11-09 | Iridescent passivation galvanized composite layer of hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205985172U CN201908133U (en) | 2010-11-09 | 2010-11-09 | Iridescent passivation galvanized composite layer of hinge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908133U true CN201908133U (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205985172U Expired - Lifetime CN201908133U (en) | 2010-11-09 | 2010-11-09 | Iridescent passivation galvanized composite layer of hinge |
Country Status (1)
| Country | Link |
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| CN (1) | CN201908133U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774132A (en) * | 2014-02-17 | 2014-05-07 | 北京美坚默克化工产品有限公司 | Sky-blue passivator for zinc coatings and preparation method and passivating treatment method thereof |
| CN104060303A (en) * | 2014-06-25 | 2014-09-24 | 滨中元川金属制品（昆山）有限公司 | Salt-spray-resistant galvanizing technique |
| CN105057586A (en) * | 2015-08-07 | 2015-11-18 | 昆山—邦泰汽车零部件制造有限公司 | Method for manufacturing automobile hardware |
| CN106756966A (en) * | 2016-12-09 | 2017-05-31 | 济南大学 | The purple tin cobalt copper passivation coloring of zinc coat |
-
2010
- 2010-11-09 CN CN2010205985172U patent/CN201908133U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774132A (en) * | 2014-02-17 | 2014-05-07 | 北京美坚默克化工产品有限公司 | Sky-blue passivator for zinc coatings and preparation method and passivating treatment method thereof |
| CN103774132B (en) * | 2014-02-17 | 2017-01-04 | 段国波 | Sky blue passivator of a kind of zinc coat and preparation method thereof and deactivating process for the treatment of |
| CN104060303A (en) * | 2014-06-25 | 2014-09-24 | 滨中元川金属制品（昆山）有限公司 | Salt-spray-resistant galvanizing technique |
| CN105057586A (en) * | 2015-08-07 | 2015-11-18 | 昆山—邦泰汽车零部件制造有限公司 | Method for manufacturing automobile hardware |
| CN106756966A (en) * | 2016-12-09 | 2017-05-31 | 济南大学 | The purple tin cobalt copper passivation coloring of zinc coat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" | ||
| CP03 | "change of name, title or address" |
Address after: 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: 911-912, room 2, Tian An hi tech industrial building, 730 Yingbin Road, Guangzhou, Guangdong, Panyu District 511400, China Patentee before: GUANGZHOU HKS SURFACE TREATMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |