CN203547338U - Corrosion-resistant refrigerator door hinge - Google Patents
Corrosion-resistant refrigerator door hinge Download PDFInfo
- Publication number
- CN203547338U CN203547338U CN201320593980.1U CN201320593980U CN203547338U CN 203547338 U CN203547338 U CN 203547338U CN 201320593980 U CN201320593980 U CN 201320593980U CN 203547338 U CN203547338 U CN 203547338U
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- Prior art keywords
- corrosion
- electrophoretic paint
- coating
- hinge
- resistant
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- Expired - Fee Related
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Abstract
The utility model discloses a corrosion-resistant refrigerator door hinge. The corrosion-resistant refrigerator door hinge is characterized in that a cold rolled steel plate, a hot rolled plate or a galvanized steel sheet is served as base material; an electrophoretic paint coating is formed on the surface of the base material by the use of electrophoretic paint coating process; a resin powder coating layer is formed on the surface of the electrophoretic painting coating through the use of spraying process. Due to the fact that the corrosion-resistant refrigerator door hinge utilizes surface treatment processes of the electrophoretic paint coating and the resin power spraying, the hinge has good corrosion-resistant effect, and cost is relatively low.
Description
Technical field
The utility model relates to refrigerator doors hinge.
Background technology
Refrigerator doors hinge all adopts the process of surface treatment of the single forms such as zinc-plated, chromium plating, toner spraying, electrophoretic paint application in the market, or adopt the good base materials of chemical stability such as aluminium alloys, stainless steel, to meet the corrosion resistance of refrigerator doors hinge in daily environment.But zinc-plated, toner sprays, independent a kind of accessible corrosion resistance of surface treatment mode of electrophoretic paint application is unsatisfactory, the hinge high expensive of chromium plating or use aluminium alloys, stainless steel substrate.
Utility model content
The utility model is for avoiding the existing weak point of above-mentioned prior art, and a kind of corrosion-resistant refrigerator doors hinge on low cost and decay resistance with balanced advantage is provided.
The utility model is that technical solution problem adopts following technical scheme:
The design feature of the corrosion-resistant refrigerator doors hinge of the utility model is:
The design feature of the corrosion-resistant refrigerator doors hinge of the utility model is: take cold-rolled steel sheet, hot rolled plate or galvanized steel plain sheet as base material, on the surface of described base material, adopt electrophoretic paint coating process to be formed with electrophoretic paint coating, on the surface of described electrophoretic paint coating, adopt spraying coating process to be formed with toner sprayed coating.
The design feature of the corrosion-resistant refrigerator doors hinge of the utility model is also:
The thickness of described electrophoretic paint coating is 10～40 μ m.
The thickness of described toner sprayed coating is 30～120 μ m.
The utility model adopts the process of surface treatment of electrophoretic paint application binding resin powder spray, make hinge have good antiseptic effect, and cost is relatively low.Compared with the prior art, the utility model has balanced advantage on low cost and decay resistance.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model refrigerator hinge profile schematic diagram;
Number in the figure: 1 base material, 2 electrophoretic paint coatings, 3 toner sprayed coatings, 4 refrigerator hinges.
The specific embodiment
Referring to Fig. 1, Fig. 2, in the present embodiment, refrigerator hinge 4 is take cold-rolled steel sheet as base material 1, also can be take hot rolled plate or galvanized steel plain sheet as base material, surface at base material 1 is formed with electrophoretic paint coating 2 by electrophoretic paint coating process, on the surface of electrophoretic paint coating 2, by spraying coating process, is formed with toner sprayed coating 3.
The corrosion of hinge is to start to occur from the otch of hinge, hole, solder joint, because there is sharp-pointed limit, angle in these places, when hinge is carried out to corner processing, because of hinge arrangement irregular, be difficult for polishing, turning, hole, solder joint more difficult being polished to of wedge angle, sharp edge around, careful polishing can greatly increase again cost, when single modes such as this hinge being carried out to zinc-plated, chromium plating, toner spraying, electrophoretic paint application is carried out process of surface treatment, easily produce accumulation, cracking, the defect such as easy to wear, cause decay resistance to decline.
In the present embodiment, for the surfacing of hinge, be to carry out in two steps with electrophoretic paint coating process and powder coating process.
First step electrophoresis, electrophoretic coating is at negative and positive the two poles of the earth, and under voltage effect, positively charged coating ionic transfer is to negative electrode hinge, and the electrodeposited paint film of formation is evenly coated on hinge, has stronger adhesion.Voltage in electrophoresis process can be 10～500V according to electrophoresis tank size, and operating condition is 0～40 ℃, and electrophoresis groove liquid contains 80～90% deionized water and 10～20% coating solid by weight percentage.In coating solid, contain film-forming resin and inorganic non-metallic or metal oxide pigment that color is provided, film-forming resin is the macromolecular materials such as acrylic acid, epoxy resin or polyurethane.
Second step powder spray carries out powder spray through the hinge of electrophoretic paint application after its surperficial electrophoresis lacquer coat is dry, powder coating process is under the high voltage electric field effect of 50kV～120kV, to make resistivity produce negative electrical charge at the toner particle of 900～1200 Ω m/cm, toner can be epoxy resin, alkyd resins etc. can produce the macromolecular material of cross-linking reaction under hot conditions, adopt spray gun that charged toner is sprayed onto to hinge surface, under electrostatic interaction, powder particle is adsorbed on hinge electrophoretic paint layer surface, again through the baking of the high temperature 5～15min of 150～300 ℃, make powder particle generation cross-linking reaction, at hinge electrophoretic paint layer external surface, form the dense coating of even thickness, this coating planarization is good, corrosion resistance is good.
In concrete enforcement, electrophoresis process and powder coating process itself are routine techniques, and in the present embodiment, requiring the thickness of the electrophoretic paint coating forming is 10～40 μ m, and the thickness of the toner sprayed coating forming at electrophoretic paint coating external surface is 30～120 μ m.
Hinge is after electrophoretic process, its wedge angle, sharp edge can be comparatively mellow and full after by electrophoretic paint layer application, for the processing of follow-up spraying coating process lays the first stone, make resin spray-on coating smooth, even, smooth, stop the existence at sharp edge, angle, not easy to crack, corrosion, and cost adopts single mode to carry out only slightly increase of surfacing in prior art.
Claims (3)
1. a corrosion-resistant refrigerator doors hinge, it is characterized in that: take cold-rolled steel sheet, hot rolled plate or galvanized steel plain sheet as base material, on the surface of described base material, adopt electrophoretic paint coating process to be formed with electrophoretic paint coating, on the surface of described electrophoretic paint coating, adopt spraying coating process to be formed with toner sprayed coating.
2. corrosion-resistant refrigerator doors hinge according to claim 1, is characterized in that: the thickness of described electrophoretic paint coating is 10～40 μ m.
3. corrosion-resistant refrigerator doors hinge according to claim 1 and 2, the thickness of described toner sprayed coating is 30～120 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593980.1U CN203547338U (en) | 2013-09-25 | 2013-09-25 | Corrosion-resistant refrigerator door hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593980.1U CN203547338U (en) | 2013-09-25 | 2013-09-25 | Corrosion-resistant refrigerator door hinge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547338U true CN203547338U (en) | 2014-04-16 |
Family
ID=50465470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320593980.1U Expired - Fee Related CN203547338U (en) | 2013-09-25 | 2013-09-25 | Corrosion-resistant refrigerator door hinge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547338U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017020659A1 (en) * | 2015-08-05 | 2017-02-09 | 青岛海尔股份有限公司 | Hinge and refrigerator provided with same |
| CN107448083A (en) * | 2017-06-30 | 2017-12-08 | 浙江省平湖铰链有限公司 | A kind of environment-friendly type hinge and its processing technology |
-
2013
- 2013-09-25 CN CN201320593980.1U patent/CN203547338U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017020659A1 (en) * | 2015-08-05 | 2017-02-09 | 青岛海尔股份有限公司 | Hinge and refrigerator provided with same |
| US10501971B2 (en) | 2015-08-05 | 2019-12-10 | Qingdao Haier Joint Stock Co., Ltd. | Hinge and refrigerator having the same |
| CN107448083A (en) * | 2017-06-30 | 2017-12-08 | 浙江省平湖铰链有限公司 | A kind of environment-friendly type hinge and its processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20180925 |