Technical requirements in the manufacture of metal wound gaskets2019-02-15
1. The outer diameter of the wound part of the metal wound gasket shall have 3 to 5 turns of metal strip without filler. There shall be 2 to 3 turns of metal strip without filler at the inner diameter.
2. The number of spot welds at the inner and outer diameters of the metal wound gasket should be no less than 4 points each, and there must be no welding defects such as over-fired and incomplete penetration.
3. The upper and lower surface fillers of the metal wound gasket should be flat and suitably raised beyond the metal strip to a value of about 0.15 mm ± 0.1 mm.
4. The inner ring of the metal wound gasket should be removed from the inner ring of the middle ring.