Surface treatment masking method
A surface treatment and surface treatment-resistant technology, used in coatings, epoxy coatings, polyurea/polyurethane coatings, etc., can solve the problem of not being able to fully fit the inner wall of the hole
Active Publication Date: 2018-06-19
嘉善县魏塘资产管理有限公司
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Problems solved by technology
[0005] Since the surface tension of the paint is less than or equal to 22mN / m, the paint is easier to form a complete protective film on the inner wall of the hole. Even if the hole structure is complex, the protective film is not easy to break, thus avoiding the incomplete adhesion caused by the use of rubber plugs for protection. Problems closing the inner wall of the hole
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Embodiment Construction
[0011] see figure 1 , the method for protecting holes of a workpiece during surface treatment according to an embodiment of the present invention is used to protect a workpiece 10 during anodic oxidation, and the workpiece 10 is provided with a plurality of holes 11 . The holes 11 in the embodiment of the present invention include irregular holes and threaded holes, the longitudinal depth thereof is approximately 0.1-15 millimeters (mm), and the transverse width thereof is approximately 0.9-10 mm. The paint used in the embodiment of the present invention includes resin, solvent and additives. The surface tension of the paint is less than or equal to 22 millinewtons / meter (mN / m), and the solid content of the paint is less than or equal to 30%. The resin can be acid and alkali corrosion resistant resin, including fluorine resin, silica gel, silicone rubber, epoxy resin, acrylic resin, polyurethane or one or more thereof. The resins listed above are generally modified so that th...
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Abstract
A surface treatment masking method, which includes the following steps: preparing a coating, the coating is resistant to surface treatment, it includes a resin and a solvent, and the surface tension of the coating is less than or equal to 22 millinewtons / meter; coating the coating on the inner wall of the hole of the workpiece; And, curing the paint to form a protective film covering the inner wall of the hole to prevent the inner wall of the hole from being surface treated. Since the surface tension of the paint is less than or equal to 22mN / m, the paint is easier to form a complete protective film on the inner wall of the hole. Even if the hole structure is complex, the protective film is not easy to break, thus avoiding the incomplete adhesion caused by the use of rubber plugs for protection. Problems closing the inner wall of the eyelet.
Description
technical field [0001] The invention relates to a surface treatment masking method, in particular to a method for masking workpiece holes during surface treatment. Background technique [0002] When the surface of the workpiece is treated, such as painting, baking, sandblasting, electroplating, anodizing, electrophoresis, etc., the holes with specific functions on the workpiece do not need the above treatment, so they need to be covered and protected during the surface treatment process. . The commonly used method is to use protective rubber sleeves to block the holes, so as to prevent the reactants during surface treatment from entering the holes. However, if the hole structure is complex, it is difficult for the protective rubber sleeve to completely block the hole, or when the hole is small, the protective rubber sleeve is easy to fall off, and the protection effect is not good. Contents of the invention [0003] In view of the above, it is necessary to provide a surf...
Claims
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IPC IPC(8): C09D127/12C09D1/00C09D183/04C09D163/00C09D133/12C09D175/04
Inventor 谢沛蓉吴长锦
Owner 嘉善县魏塘资产管理有限公司