Component local sulfuric acid anodic oxidation device and application technology thereof

Abstract

The invention provides a component local sulfuric acid anodic oxidation device and an application technology thereof. The component local sulfuric acid anodic oxidation device comprises a to-be-repaired component, a surrounding frame is arranged on the to-be-repaired component; the surrounding frame is adhered to the surface of the to-be-repaired component through glue; tank liquid for reaction is arranged in the surrounding frame; a lead plate is arranged in the tank liquid; the lead plate is soaked in the tank liquid; and the to-be-repaired component and the lead plate are connected with aconductive tool respectively. According to the device, problems and defects in the prior conventional solutions are avoided, the surface of the component does not produce defects, the performance andthe quality of the component with complete oxidation layer do not have any defects, so that parts of high-precision size are prevented from being damaged and the tank liquid used by local oxidation isextremely few and low in cost.

Description

technical field [0001] The invention belongs to the technical field of sulfuric acid anodic oxidation technology, and in particular relates to a partial sulfuric acid anodic oxidation device for parts and its application process. Background technique [0002] Parts, especially large parts, after anodic oxidation defects appear or are repaired and the anodized surface is damaged, the surface defects of the parts will cause the parts to conduct electricity and reduce the corrosion resistance of the parts. It is difficult to completely avoid the local sulfuric acid caused by the nesting phenomenon under the existing technical conditions. Anodizing defects. There are mainly three conventional solutions in the past: one is to use directly in concession; the other is to apply varnish and other anti-corrosion or insulating coatings on the defective parts; the third is to re-anodize the parts with sulfuric acid. These three methods have different The problem is that the part itself...

AI Technical Summary

Problems solved by technology

[0002] Parts, especially large parts, after anodic oxidation defects appear or are repaired and the anodized surface is damaged, the surface defects of the parts will cause the parts to conduct electricity and reduce the corrosion resistance of the parts. It is difficult to completely avoid the local sulfuric acid caused by the nesting phenomenon under the existing technical conditions. Anodizing Defects

There are three main conventional solutions in the past: one is to use it directly as a concession; the other is to apply anti-corrosion or insulating coatings such as varnish on the defective parts; the third is to re-anodize the whole part with sulfuric acid. The problem is that the part itself in the first method is a substandard part, and its performance or service life will be defective during use. The anti-corrosion or insulation effect of the second method is not as good as anodizing, and the service life of the coating is not as durable as anodizing. , the appearance also has chromatic aberration defects; the third method has risks, the air pocket phenomenon that occurs during the anodizing process, and the existing sulfuric acid anodizing method will inevitably lead to the failure of anodizing in local areas; and if the The whole part is put into the bath for secondary oxidation repair. Due to the corrosiveness of sulfuric acid, the precision of the part will be damaged, resulting in the out-of-tolerance of the part size; high

Images