Post-plating passivation process method for welding part

Abstract

The invention provides a post-plating passivation process for welded parts, including 1) putting the welded parts into the plating solution for galvanizing, washing the galvanized welded parts with water at normal temperature, and 4) putting the welded parts after the first The welded parts after the secondary water washing are placed in an ultrasonic process tank at a temperature of 70°C for hot water washing; 5), the welded parts after ultrasonic hot water washing are placed in the light-emitting process tank to complete the light-emitting process, 6), and the light-emitting process is completed The final welded parts are washed with water at normal temperature, 7), the welded parts washed with water in step 6) are put into the passivation tank for processing, 10), the passivated welded parts are washed with water three times at normal temperature . The invention optimizes the process flow, reduces the process operating conditions, and uses the principle of ultrasonic vibration to strengthen the gap between the workpiece and the residual acid and alkali solution to flow out quickly. The ultrasonic process tank is heated to 70 degrees, and the cleaning effect of using hot water is more obvious, reducing the amount of equipment used. , reduce water consumption.

Description

technical field [0001] The invention relates to the technical field of post-plating passivation technology for welded parts, in particular to a post-plating passivation process method for welded parts. Background technique [0002] According to the needs of electroplating auto parts, there are stamping parts and workpieces that need to be welded in the electroplating process. The original production process has low production efficiency, the product defect rate reaches 40%, difficult operation, and high maintenance costs, which cannot meet the production needs; [0003] Therefore, in view of this, in order to increase production capacity and improve the core competitiveness of our products, the inventor has set up a special project to research and develop the galvanizing treatment technology of welded parts, and replace the traditional technology with a new technology, so as to save energy and reduce consumption, reduce costs and improve Product quality, thereby improving th...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of post-plating passivation process of welding parts, to solve the low production efficiency of the original production process proposed in the above-mentioned background technology, the defective rate of the product reaches 40%, difficult to operate, and the shortcomings of high maintenance costs, Unable to meet production demand

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