CN201908134U - Multi-layer anti-corrosion coating of door-and-window hardware - Google Patents
Multi-layer anti-corrosion coating of door-and-window hardware Download PDFInfo
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- CN201908134U CN201908134U CN2010205985736U CN201020598573U CN201908134U CN 201908134 U CN201908134 U CN 201908134U CN 2010205985736 U CN2010205985736 U CN 2010205985736U CN 201020598573 U CN201020598573 U CN 201020598573U CN 201908134 U CN201908134 U CN 201908134U
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- window hardware
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Abstract
The utility model relates to the technical field of the surface treatment technology of metal parts, in particular to a multi-layer anti-corrosion coating of a door-and-window hardware. The coating consists of a metal coating, a passivating layer and a sealing layer. The metal coating can be a pure zinc coating and a zinc-iron alloy coating; the passivating layer is a trivalent-chromium passive film; the sealing layer is a film consisting of a nanoscale silicon compound; and a multi-layer anti-corrosion safeguard structure is formed. The multi-layer anti-corrosion coating can effectively improve the corrosion resistance of the hardware, has good appearance effect and is particularly applied to the high-grade aluminum alloy door-and-window hardware.
Description
Technical field
The utility model belongs to metal part surface treatment process technical field, is specifically related to the multilayer anti-corrosion coating of door and window hardware spare.
Background technology
Door and window hardware spare is as handle, handrail, hinge, slide rail, web member etc., it is the important component part of aluminum alloy doors and windows, can its performance and the performance of quality opposite house window function have material impact, keep solidity to corrosion preferably except considering enough physical strengths, also must be noted that.The reason that causes the corrosion of aluminum alloy doors and windows handware to damage mainly is galvanic corrosion under field conditions (factors).The door-window section bar that aluminium alloy is made has generally carried out specific processing, antiseptic power with superior performance, anticorrosion weak part mainly are on handware, and the galvanic corrosion of handware singly is not at itself, influenced by the electrode of aluminium section bar, corrosion meeting under certain condition is continual to be carried out.This surfacecti proteon that just needs to strengthen the door and window handware is handled.Typical treatment process comprises the nonmetal protected decoration layer of spraying, as plastics and paint, but the anti-oxidant and ultraviolet ability of plastics and coat of painting, As time goes on can wear out gradually, become fragile, obfuscation and generation are chapped, are come off, little with the bonding strength of metal, grind off easily, therefore be not suitable as the protected decoration coating of movable members.Zinc-plated processing can provide better corrosion protection to handware, but for long-term exposure in air, be subjected to the serious door and window hardware spare of galvanic corrosion, single zinc coating is oxidized easily, scratch.Above-mentioned technology all can not satisfy the anti-corrosion requirement of door and window hardware spare effectively.
Summary of the invention
The purpose of this utility model is to provide a kind of multilayer anti-corrosion coating of door and window hardware spare, can effectively improve the solidity to corrosion of handware, has the good surface appearance effect simultaneously, is particularly suitable for the application of high-grade aluminum alloy doors and windows handware.
The technical solution of the utility model is as follows: the multilayer anti-corrosion coating of door and window hardware spare, form by metal plating, passivation layer, sealer coat, described metal plating, passivation layer, sealer coat are covered in the matrix surface of door and window hardware spare successively, form the anti-corrosion safeguard structure of multilayer.
Optional pure zinc coating of described metal plating or zn-fe alloy coating, preferred thickness 5～8 μ m.The zn-fe alloy coating corrosion resisting property is better, but manufacturing cost is also higher, can be applicable to the occasion that requires solidity to corrosion higher.
Described passivation layer is a kind of trivalent chromium passive film, and composition is alkali formula chromium sesquioxide, fluorine chromium cpd, and thickness is about 100～300nm, and outward appearance is blue.Passivation layer has the good binding ability to metal plating, and passive film is difficult for yellowing.
The film that described sealer coat is formed for the nano silicone compound, preferred thickness is 0.5～1 μ m.Sealer coat combines closely with passivation layer, and content of volatile organic compound is low, and outward appearance is glossy.
The beneficial effects of the utility model are: have good resistance to corrosion, the multilayer anti-corrosion coating neutral salt spray test that contains pure zinc coating can reach more than 96 hours, and the multilayer anti-corrosion coating that contains zn-fe alloy coating can reach more than 240 hours; Manufacture craft does not contain sexavalent chrome passivator and sexavalent chrome encapsulant, satisfies environmental requirement, and is higher than sexavalent chrome surface treatment solidity to corrosion simultaneously; Can carry out rack plating and barrel plating, be applicable to automatic production line production; Satisfy of the requirement of high-grade door and window hardware spare, applied range to solidity to corrosion and appearance effect.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Among the figure, 1 is the handware matrix, and 2 is metal plating, and 3 is passivation layer, and 4 is sealer coat.
Embodiment
Be described further below in conjunction with the embodiment of accompanying drawing the utility model patent:
As shown in the figure, the multilayer anti-corrosion coating of door and window hardware spare, be made up of metal plating (2), passivation layer (3), sealer coat (4), described metal plating (2), passivation layer (3), sealer coat (4) are covered in matrix (1) surface of door and window hardware spare successively, form the anti-corrosion safeguard structure of multilayer.
Embodiment one: adopt metallic zinc, sodium hydroxide and zinc-platedly open cylinder agent, zinc-plating brightener, zinc-plated cleaner or additive, zinc-plated adjustment agent etc., handware is carried out alkaline galvanizing technology handle; Adopt the blue passivator of trivalent chromium to carry out Passivation Treatment; Adopt water-based type encapsulant to carry out sealing treatment after finishing passivation, thereby form the multilayer anti-corrosion coating that comprises zinc coating, passivation layer, sealer coat on door and window hardware spare surface, solidity to corrosion is good, and neutral salt spray test can reach more than 96 hours.
Embodiment two: adopt zinc oxide, sodium hydroxide and zinc-iron alloy brightening agent, zinc-iron alloy supplement, zinc-iron alloy stablizer, zinc-iron alloy softening agent etc., handware is carried out alkaline zinc-iron alloy plating process handle; Adopt the blue passivator of zinc trivalent chromium to carry out Passivation Treatment; Adopt water-based type encapsulant to carry out sealing treatment after finishing passivation, thereby form the multilayer anti-corrosion coating that comprises zn-fe alloy coating, passivation layer, sealer coat on door and window hardware spare surface, solidity to corrosion is better, and neutral salt spray test can reach more than 240 hours.
The utility model implementing process does not contain the big sexavalent chrome material of environmental hazard, and the product corrosion resisting property that provides than traditional sexavalent chrome process of surface treatment is better simultaneously, and the widespread production that is fit to high-grade door and window hardware spare is used.
Claims (4)
1. the multilayer anti-corrosion coating of door and window hardware spare is made up of metal plating, passivation layer, sealer coat, it is characterized in that: described metal plating, passivation layer, sealer coat are covered in the matrix surface of door and window hardware spare successively, form the anti-corrosion safeguard structure of multilayer.
2. the multilayer anti-corrosion coating of door and window hardware spare according to claim 1 is characterized in that: optional pure zinc coating of described metal plating or zn-fe alloy coating, preferred thickness 5～8 μ m.
3. the multilayer anti-corrosion coating of door and window hardware spare according to claim 1 is characterized in that: described passivation layer thickness is 100～300nm.
4. the multilayer anti-corrosion coating of door and window hardware spare according to claim 1 is characterized in that: the film that described sealer coat is formed for the nano silicone compound, and preferred thickness is 0.5～1 μ m, outward appearance is glossy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205985736U CN201908134U (en) | 2010-11-09 | 2010-11-09 | Multi-layer anti-corrosion coating of door-and-window hardware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205985736U CN201908134U (en) | 2010-11-09 | 2010-11-09 | Multi-layer anti-corrosion coating of door-and-window hardware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908134U true CN201908134U (en) | 2011-07-27 |
Family
ID=44300339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205985736U Expired - Lifetime CN201908134U (en) | 2010-11-09 | 2010-11-09 | Multi-layer anti-corrosion coating of door-and-window hardware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951097A (en) * | 2016-05-23 | 2016-09-21 | 江苏固格澜栅防护设施有限公司 | Guard bar with surface coated with metal-ceramic composite coating and manufacturing method |
| CN112813471A (en) * | 2021-02-02 | 2021-05-18 | 山东建筑大学 | Green electroplating process for door and window hardware |
-
2010
- 2010-11-09 CN CN2010205985736U patent/CN201908134U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951097A (en) * | 2016-05-23 | 2016-09-21 | 江苏固格澜栅防护设施有限公司 | Guard bar with surface coated with metal-ceramic composite coating and manufacturing method |
| CN112813471A (en) * | 2021-02-02 | 2021-05-18 | 山东建筑大学 | Green electroplating process for door and window hardware |
| CN112813471B (en) * | 2021-02-02 | 2022-02-25 | 山东建筑大学 | Green electroplating process for door and window hardware |
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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" |
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. |
|
| CP03 | "change of name, title or address" | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |
|
| CX01 | Expiry of patent term |