Metal Bellows Testing Machine

The physical testing items for metal bellows typically include the following aspects:

1. Appearance Inspection: Check whether the surface of the bellows is smooth, and look for any cracks, bumps, oxidation, or other conditions.

2. Hardness Test: Test whether the hardness of the bellows meets the standard requirements, usually performed with a hardness tester.

3. Welding Quality Inspection: Check whether the joints of the bellows are securely welded, and look for any looseness, cracks, porosity, incomplete penetration, or other issues.

4. Material Analysis Inspection: Determine whether the material of the bellows meets national standards and engineering requirements by testing the composition and chemical properties of the material.

5. Metallographic Structure Inspection: Detect whether the metallographic structure of the bellows is normal using devices such as a metallurgical microscope, including grain size, degree of crystallization, phase composition, and clarity of grain boundaries.

6. Pressure Test: Use the Stardust test metal bellows testing platform to conduct pressure tests and assess whether the pressure resistance performance meets the requirements.

7. Ultrasonic Inspection: Use ultrasonic inspection equipment to detect any internal defects, cracks, or other surface and internal defects within the bellows.

8. Ring Stiffness Test: Use the Stardust test ring stiffness testing machine for whole pipe compressive strength testing.

9. Local Transverse Load Test: The Stardust metal bellows comprehensive testing platform can perform multi-angle deflection compressive resilience tests.

10. Flexibility Test: The Stardust metal bellows comprehensive testing platform can complete low-frequency reciprocating stretching and compressing, deflection return, and other tests.

11. Impact Resistance Test: Assess the tolerance of the bellows under sudden impacts.

12. Leak Resistance Performance Test: Inspect the sealing performance of the bellows after it is subjected to loads, including leak resistance performance after local transverse loads and after bending.

13. Dimensional Accuracy Test: Measure the dimensional accuracy of the inner diameter and wall thickness of the bellows.

14. Corrosion Resistance Assessment: Evaluate the corrosion resistance of the bellows material through methods such as salt spray testing and chemical reagent immersion testing.

15. Fatigue Life Test: The Stardust dynamic testing machine can complete high-frequency stretching, compressing, and resilience life testing until the bellows crack, or the test number is reached, or the strength value falls below the predetermined level.

16. Vibration Test: Assess the dynamic response of the bellows under different frequencies and amplitudes.

These testing items can comprehensively evaluate the physical performance of metal bellows, ensuring their reliability and safety in various application environments.