A method for cleaning objects before electroplating

Abstract

The invention relates to a cleaning method for objects before electroplating, which comprises the following processing steps: glue removal; water-soluble dirt removal; rinsing; oil-soluble dirt removal; modified hydrocarbon cleaning agent removal; vacuum steam cleaning; vacuum drying; inspection; The cleaning method does not need to use toxic chemicals such as trichlorethylene and potassium permanganate, which ensures the health of workers and is environmentally friendly; this cleaning method also has the following advantages: 1. No need for pure water for rinsing, no need for additional pure water production equipment, It reduces the generation of sewage, reduces the cost of sewage treatment, and meets the requirements of clean production; 2. After cleaning, there is no need for manual scrubbing, and no additional ovens are required for drying. The process is simple, saving labor costs, and improving production efficiency and Economic benefits; 3. No water marks will be left, which significantly improves the qualified rate of plated parts and economic benefits; 4. It has a good cleaning effect on irregular objects with special parts such as blind holes, nodes, gaps, and cracks.

Description

technical field [0001] The invention relates to the technical field of cleaning technology, in particular to a method for cleaning objects before electroplating. Background technique [0002] In the electroplating industry, in order to ensure that the coating can be stably covered on the object, the object is often cleaned before electroplating. [0003] In the prior art, the cleaning method before the electroplating of the object is as follows: 1, immerse in trichlorethylene for ultrasonic cleaning, repeat twice; 2, use trichlorethylene vapor to dry; 3, utilize potassium permanganate to oxidize and remove glue; 4. Use oxalic acid to remove excess potassium permanganate; 5. Rinse with tap water, repeat three times; 6. Use ultrasonic cleaning with wax removal water; 7. Rinse with tap water, repeat three times; 8. Rinse with sulfuric acid; 9. Use Rinse with tap water; 10. Rinse with normal temperature pure water, repeat twice; 11. Use high temperature pure water for ultrasoni...

AI Technical Summary

Problems solved by technology

[0006] 1. Multiple tanks and a large amount of pure water are required for rinsing. Not only does additional pure water production equipment need to be added, but also the sewage generated is difficult and costly to treat, which does not meet the requirements of clean production;

[0007] 2. Manual scrubbing is required after cleaning, and additional ovens are required for drying. The process is cumbersome and the labor cost is high;

[0008] 3. It is easy to leave water marks, and it is easy to make the plated parts become defective products, which increases the defective rate and reduces the economic benefits

Images