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Surface treatment process for aluminum lamp housing

A technology for surface treatment and lamps, which is applied in the direction of surface pretreatment, metal material coating process, and device for coating liquid on the surface, etc. It can solve the problem of affecting the use time of spray coating adhesion, high alkalinity of degreasing solution, and complicated production process. and other problems, to achieve the effect of less floor space, longer protection time and less equipment investment

Inactive Publication Date: 2018-11-13
ZHEJIANG HPWINNER SCI CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production process of the spraying process in the prior art is complicated, the investment in equipment is large, the floor area is large, and the degreasing solution is alkaline, which will damage the workpiece, thereby affecting the adhesion and service time of the sprayed layer.

Method used

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  • Surface treatment process for aluminum lamp housing
  • Surface treatment process for aluminum lamp housing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Prepare the workpiece blank: the surface of the cast aluminum workpiece blank must be smooth, free of sticky sand, cold shut, air holes, pinholes, wrinkled skin and cracks; Removal of oil stains and welding oxides; no pit marks and bulges on the non-processed surface; no aluminum chips and sand in the screw holes.

[0043] (2) Hang the workpiece blank on the hanger of the plastic spraying line: the hook, hanger and workpiece blank should be grounded. The hooks and hangers can be put into a hot cleaning furnace for further use according to usage conditions.

[0044](3) Anti-coating operation: According to the workpiece and the number of wire holes that need anti-coating, the anti-coating work of the wire holes is carried out before cleaning.

[0045] (4) Hot water washing operation: at 40°C, use tap water to spray the workpiece for 2 minutes to remove ash and oil stains, and ensure that the bath overflows so that the oil on the bath surface can be discharged as much...

Embodiment 2

[0070] (1) Prepare the workpiece blank: the surface of the cast aluminum workpiece blank must be smooth, free of sticky sand, cold shut, air holes, pinholes, wrinkled skin and cracks; Oil stains and welding oxides are removed; the non-processed surface must be free of pit marks and bulges; there must be no aluminum chips and sand in the screw holes.

[0071] (2) Hang the workpiece blank on the hanger of the plastic spraying line: the hook, hanger and workpiece blank should be grounded. The hooks and hangers can be put into a hot cleaning furnace for further use according to usage conditions.

[0072] (3) Anti-coating operation: According to the workpiece and the number of wire holes that need anti-coating, the anti-coating work of the wire holes is carried out before cleaning.

[0073] (4) Hot water washing operation: at 50°C, use tap water to spray the workpiece for 1 minute to remove ash and oil stains. Ensure that the tank liquid overflows so that the oil on the tank liqui...

Embodiment 3

[0098] (1) Prepare the workpiece blank: the surface of the cast aluminum workpiece blank must be smooth, free of sticky sand, cold shut, air holes, pinholes, wrinkled skin and cracks; Removal of oil stains and welding oxides; no pit marks and bulges on the non-processed surface; no aluminum chips and sand in the screw holes.

[0099] (2) Hang the workpiece blank on the hanger of the plastic spraying line: the hook, hanger and workpiece blank should be grounded. The hooks and hangers can be put into a hot cleaning furnace for further use according to usage conditions.

[0100] (3) Anti-coating operation: According to the workpiece and the number of wire holes that need anti-coating, the anti-coating work of the wire holes is carried out before cleaning.

[0101] (4) Hot water washing operation: at a temperature of 45°C, use tap water to spray the workpiece for 1.5 minutes to remove ash and oil stains, and ensure that the bath overflows. So that the oil on the liquid surface o...

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Abstract

The invention discloses a surface treatment process for an aluminum lamp housing, and relates to the technical field of lamp production. The surface treatment process for the aluminum lamp housing comprises the following steps of (1) preparing a workpiece blank; (2) hanging the workpiece blank on a hanger of a powder coating assembly line; (3) conducting coating prevention; (4) conducting hot washing; (5) conducting pre-degreasing; (6) conducting main degreasing; (7) conducting washing for the first time; (8) conducting washing for the second time; (9) conducting ceramization; (10) conductingwashing for the third time; (11) conducting washing with pure water; (12) blowing water manually; (13) conducting drying and dewatering; (14) spraying plastic powder to the surface of a workpiece; and(15) curing. According to the surface treatment process for the aluminum lamp housing, a coating is good in adhesive force, resistant to impact and corrosion, good in protection performance and longin service life. The plastic powder is free of pollution, powder paint is solid paint, no organic solvent is used, and basically no pollution is caused, so that environmental protection and the healthof workers are facilitated. As powder excessively sprayed out in the spraying process can be recycled, the utilization rate of the plastic powder is high.

Description

technical field [0001] The invention relates to the technical field of lamp production. In particular, it is a surface treatment process for aluminum cast lamp shells. Background technique [0002] Aluminum alloy is a widely used building decoration material. In order to prevent the oxidation of aluminum alloy, it is necessary to spray plastic on its surface to prolong the service life of aluminum alloy. However, the plastic spraying process of the prior art has complex production procedures, large equipment investment, large floor space, and high alkalinity of the degreasing solution, which will damage the workpiece, thereby affecting the adhesion and service time of the sprayed coating. Contents of the invention [0003] The purpose of the present invention is to provide a surface treatment process for the shell of an aluminum cast lamp to solve the technical problems in the background art. [0004] In order to achieve the above object, the present invention provides a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/06B05D3/00C23G1/22C23C22/05
CPCB05D1/06B05D3/002C23C22/05C23C2222/20C23G1/22
Inventor 陈凯黄建明
Owner ZHEJIANG HPWINNER SCI CO LTD
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