Stainless steel plate heat exchanger equipment in the factory is required to pass a rigorous quality inspection, qualified before the factory sales, Qingdao Ruipute plate heat exchanger manufacturers tell you the plate heat exchanger factory quality control needs to go through what process?

Stainless steel plate heat exchanger equipment manufacturing process inspection, including the inspection of raw materials, testing and pressure testing between processes, the specific content of which is as follows.

1. Inspection of size and geometry of raw materials and equipment parts.

2. Inspection of raw materials and weld internal defects, the inspection method is non-destructive testing, which includes: ray detection, ultrasonic detection, magnetic particle detection, penetration testing, etc..

3. The chemical composition analysis of raw materials and weld seams, mechanical properties analysis test, metallurgical organization inspection, generally known as the destruction test.

4. Equipment pressure testing, including: hydrostatic test, media test, airtightness test, etc.

5. Pressure resistance test and airtightness test.

Manufacturing completed heat exchanger should be heat exchanger plate course and shell course pressure test or increase the airtightness test, pressure test, including water pressure test and air pressure test. Heat exchanger general water pressure test, but because of the structure or support reasons, can not be filled with liquid or operating conditions do not allow residual test liquid, can be used when the air pressure test.

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