Importance of seal appearance inspection

    The appearance defect inspection machine manufacturer reminds you of the importance of sealing ring appearance inspection.

    Most of the sealing rings are made of rubber materials, and generally exist as sealing products. They have the characteristics of stability, easy processing, full of elasticity and resilience, and will not corrode the contact surface and thus have good sealing performance. Toys, firefighting, ships, pharmaceuticals, hardware and plastics, sanitary ware, water supply and drainage, household appliances and sports equipment and other industries. The inspection items of the sealing ring can be inspected from several key indicators such as appearance, air tightness, hardness, tensile strength, elongation, tearing performance, and compression deformation at high and low temperatures.

    The appearance inspection of the seal ring can detect bubbles, impurities, dent defects, etc. by visual inspection. The sealing ring’s burrs, small pits, perforations, and fractures will directly affect its sealing performance. These can be tested by professional equipment. According to GB/T6031-1998, the Shore hardness of the sealing ring is 45-55 degrees. In order to fail to burst, the hardness test can be measured with a professional hardness tester.

    It can be said that the three indexes of sealing ring tensile strength, elongation and tearing performance directly determine the quality of the sealing ring. This part can be tested in accordance with the standard of GB/T528-2009, which specifies in detail Standard for the determination of tensile, stress and strain properties of vulcanized rubber and thermoplastic rubber.