Repair method for spraying high-glossiness poor-appearance products

Abstract

The invention discloses a repair method for spraying high-glossiness poor-appearance products. The method comprises the following steps: (1) roughly polishing the poor-appearance products with surface defects by using a first point polishing machine, attaching water-wetted abrasive paper to a runner of the first point polishing machine, and driving the runner to perform inertial motion along a predetermined route at the rotating speed being greater than or equal to 2,000r / min and the force being 0.5-1.0kgf till the defects are removed; (2) finely polishing by using an electric grinding machine, uniformly coating a cloth wheel on one side of the electric grinding machine with yellow wax, and after qualified polishing, cleaning yellow wax marks on the surfaces of the products by using a cloth wheel which is not coated with the yellow wax on the other side, wherein the rotating speed is greater than or equal to 3,000r / min; (3) repairing: coating the positions polished in the step (2) with water wax, repairing by using a second point polishing machine, sticking a wool ball to the runner of the second point polishing machine, and repairing by performing inertial motion along a predetermined route at the rotating speed being between 1,500r / min and 2,000r / min and the force being less than or equal to 1.0kgf till the products have uniform glossiness. Through the method of the invention, at least 80 percent of poor-appearance products can be turned into non-defective products.

Description

technical field [0001] The invention relates to the processing field of high-gloss products, in particular to a method for repairing defective appearance of spray-coated high-gloss products. Background technique [0002] In the existing spraying industry, the cleanliness of the dust-free workshop is not up to standard, and the cleaning operation is not thorough, which may easily lead to poor appearance of high-gloss products after spraying, such as particles, no scratches on the surface of the product, no scratches on the hand, and no joint lines. 60%, resulting in high production scrap costs and large losses in repeated production costs. Especially now that the development trend of the 3C industry is good, and the demand for large-screen mobile phones and tablet computers is strong, how to turn these defective products into good products and reduce the cost of spraying production is particularly important. Contents of the invention [0003] The invention proposes a metho...

AI Technical Summary

Problems solved by technology

[0002] In the existing spraying industry, the cleanliness of the dust-free workshop is not up to standard, and the cleaning operation is not thorough, which may easily lead to poor appearance of high-gloss products after spraying, such as particles, no scratches on the surface of the product, no scratches on the hand, and no joint lines, which account for about the proportion of total defects. 60% of the total, resulting in high production scrap costs and large losses in repeated production costs