Gasket and the manufacturing method thereof

摘要

A gasket includes: a spiral wound gasket; a first O-ring member located inner side of the spiral wound gasket; a second O-ring member located outer side of the spiral wound gasket; a first core spring located inside the first O-ring member; a second core spring located inside the second O-ring member; a first jacket formed with an opening portion and accommodating the spiral wound gasket, the first O-ring member, and the second O-ring member inside thereof through the opening portion; a second jacket formed with an opening portion at the one end thereof and accommodating the spiral wound gasket, the first O-ring member, and the second O-ring member, and the first jacket inside thereof through the opening portion; a first sealing layer being formed on the first jacket; a second sealing layer to cover the first sealing layer; and a third sealing layer being formed on the second jacket.

主权项

1. A gasket characterized in that and including:
a spiral wound gasket; a first O-ring member located inner side of said spiral wound gasket; a second O-ring member located outer side of said spiral wound gasket; a first core spring located inside said first O-ring member; a second core spring located inside said second O-ring member; a first jacket formed with an opening portion at the one end thereof and accommodating said spiral wound gasket, said first O-ring member, and said second O-ring member inside thereof through said opening portion; a second jacket formed with an opening portion at the one end thereof and accommodating said spiral wound gasket, said first O-ring member, and said second O-ring member, and said first jacket inside thereof through said opening portion; a first sealing layer being formed on said first jacket through the opening portion of said second jacket; a second sealing layer being formed to cover said first sealing layer; and a third sealing layer being formed on said second jacket in the opposite side of said second sealing layer.