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Hardening product surface spray coating processing technique

A treatment process and surface spraying technology, which is applied to the device for coating liquid on the surface, pretreatment surface, coating, etc., can solve the problems of difficult spraying process on the surface of hardened products, achieve the elimination of hardened layer, simple and easy operation, The effect of improving adhesion

Inactive Publication Date: 2008-06-04
MITAC PRECISION TECH(KUNSHAN) CORP
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Problems solved by technology

This shortcoming brings difficulties to the spraying process on the surface of hardened products

Method used

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  • Hardening product surface spray coating processing technique

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Embodiment Construction

[0009] Please refer to figure 1 Shown is a schematic diagram of the process flow of the present invention.

[0010] Take an injection-molded workpiece, first perform surface treatment on the workpiece, remove oil, dust and other impurities on the surface, and then air dry, then immerse the workpiece in a chemical solution for hardening treatment. The hardened workpiece is A smooth and hardened hardened layer is formed on the surface. If paint spraying or printing ink is directly applied to the surface of the hardened workpiece, the adhesion of the paint or ink is very low, and it is very easy to peel off on a large area. In the embodiment, the surface of the hardened workpiece that does not require painting or printing ink is masked with a wooden board, and the surface of the workpiece is sandblasted by sandblasting, that is, the surface of the workpiece is sandblasted by a sandblasting machine at a certain air pressure. Next, sandblasting the surface of the hardened workpiece wit...

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Abstract

The invention discloses a disposal process for surface coating of a hardening product. The disposal process comprises at least the following steps: a. a workpiece is hardened; b. sand blasting is carried out on the surface of the workpiece; c. paint spray coating or ink printing is carried out on the surface of the workpiece; wherein, in the step b, the area where the blasting is not required is covered by wood plate before the sand blasting is carried out; furthermore, the workpiece is required to be cleaned and air dried before each step. The disposal process of the invention is simple and feasible, which eliminates the hardening layer on the workpiece by the way of sand blasting, thus overcoming the shortage of poor adhesion of past paint or ink on the surface of hardening product.

Description

Technical field [0001] The invention relates to a surface coating technology, in particular to a treatment process for spraying on the surface of a hardened product. Background technique [0002] At present, in the production of mirror products, transparent materials are usually used for injection molding, but the surface hardness of this product is too low, and it is easy to be scratched during production and use, resulting in reduced added value and poor product. Therefore, a chemical solution is used to harden the product to form a hardened layer on the surface of the product. After the treatment is completed, paint or print ink on the surface of the product. Because the surface of the product is relatively smooth, the adhesion of the paint or ink is relatively poor. After spraying or printing ink spraying, use chemical grid test or tape to test the product, the paint or ink will fall off in a large area. This shortcoming brings difficulties to the spraying process of hardened...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D3/00B05D3/10B05D3/12B05D1/32
Inventor 冯小伟
Owner MITAC PRECISION TECH(KUNSHAN) CORP
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