Section bar and method for obtaining product with clear color boundary by performing surface treatment on section bar

Abstract

The invention relates to a structure of a section bar and a method for performing surface treatment on the section bar. A technical slot is formed in the surface of the section bar and at a two-color boundary line of the section bar to be subjected to two-color surface treatment. The method for processing a product which is clear in color boundary and attractive in appearance by performing surface treatment on the aluminum section bar comprises the following steps of: performing positive electrode true color treatment on the whole aluminum section bar, then sticking part, which needs to keep the true color of aluminum, on the surface of the aluminum section bar by using shading glue, sticking a glue edge in the technical slot, performing secondary positive electrode black or painting black treatment, after treatment is finished, tearing off the shading glue to achieve attractive effects that a black color and a silver color are clearly distinguished, and the colors are layered. By the method, the technical slot is formed in the two-color boundary part on the section bar; wave or sawtooth-shaped appearance defects on the color boundary part are hidden in the slot, so that a user cannot see the appearance defects visually, and only a straight and attractive color boundary line on the edge of the slot can be seen; and due to partitioning of a fine slot, the layering quality of a product is improved.

Description

technical field [0001] The invention relates to a profile structure and also relates to a surface treatment method for the profile. Background technique [0002] For large-sized TV aluminum frame products, the front side connected to the screen is generally required to be black, and the outer side is required to be metallic sandblasted or brushed silver. When producing this kind of TV aluminum frame, first process the aluminum profile with an aluminum extrusion die, then do anodic natural color treatment on the entire profile to produce silver, and then paste masking glue on the part that needs to be kept silver, and then pass the secondary anode or baking paint treatment into black. After tearing off the masking glue, the aluminum profile presents an appearance that is partly silver and partly black. [0003] However, due to the influence of the surface texture of the product, when doing secondary anode or baking paint, the liquid will penetrate into the masking glue alon...

AI Technical Summary

Problems solved by technology

[0003] However, due to the influence of product surface texture, when doing secondary anode or baking paint, the liquid will penetrate into the masking glue along the product surface texture along the edge of the masking glue. Forming wavy or jagged appearance defects, which reduces the appearance grade of high-end smart TVs

[0004] Some operators design bosses at the color boundary, and use diamond cutters to mill highlights or stamps. Because it is processed after surface treatment, it is easy to cause scratches , the general defect rate can reach 20%, and the diamond tool milling highlights or batch flower processing costs are high, and the processing cost is generally 30 yuan / piece

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