Typical process flow
A typical conventional process flow sequence includes the following steps.
1. Polishing.
2. Solvent degreasing.
3. Install and hang.
4. Electrolytic degreasing.
5. Wash with hot water.
6. Rinse with cold water.
7. Acid and weak corrosion.
8. Rinse with cold water.
9. Neutralization (if necessary).
10. Rinse with cold water.
11. Electroplating.
12. Rinse with cold water.
13. Wash with hot water (if necessary).
14. Passivation, filling or other additional treatment (as required).
15. Unloading and cleaning.
16. Dehydration or drying.
17. Anti-rust.
18. Packaging and transshipment.
Generally, the pre-plating inspection must be done before the plated parts are received and put into production. A large number of small items are generally spot-checked, and each large or important product must be checked carefully to prevent defective products from entering the production line. Some parts must be tempered , as mentioned above. The assembled parts are generally not suitable for electroplating in the tank, so as to prevent the solution from penetrating into the gap and causing hidden dangers. If post -assembly special insulation protection should be added, or local treatment methods such as brush plating should be used. Large quantities of small pieces of flow production, the quality inspection before and after plating is often easy to relax. Experience has proved that quality inspection of these seemingly unimportant small pieces must be strengthened, because the products are widely distributed and difficult to track, and it is difficult to repair or recall after quality problems . Therefore, these small pieces have a greater impact on the overall product quality, especially product reputation, than large pieces. Many production departments have had this kind of experience or painful lessons.
