Quality Inspection

In the production of the injection valve set, a total of 15 steps of quality inspection are conducted, covering the selection of raw materials, inspections during production, and examination of finished products. Each of these 15 steps is crucial, as a missed step can result in poor quality or production failure. Therefore, each process is overseen by specific workers who are responsible for ensuring the quality at every stage.

Here are some description of injection valve set’s produce processes:

1. Inspect raw materials and make backup of raw materials test report;

2. Cutting raw materials with blanking machine;

3. Inspect raw material’s cutting diameter and length;

4. Forging and forming processing on the raw materials;

5. Inspectors conduct the all kinds of inspections of forming blank;

6. Remove the blank scrap ;

7. Blast the surface of the blank;

8. Conduct surface treatment inspection after sandblasting;

9. Perform blank machining;

10. Process injection valve set’s body seal threading;

11. Process injection valve set body connection threading;

12. Process injection valve set’s hole;

13. Inspector conducts general inspection;

14. Install the injection valve set;

15. The packing workshop finish product packaging.

Before sending out of the factory, the finished injection valve set still need to undergone through three inspections—full inspection, random inspection, and batch inspection. In these inspections, different brands of test benches are used to test the same injection valve set for total of no less than three times.

Apart from above, injection valve set is one of the most important running parts, it is also one of parts with the highest damage rate, even tiny particles can cause failure of injection valve set and even entire components. So it is important to make sure the whole produce process and installation and its working place are dust-free.