Leaktight bond to the gases and liquids between a piece of plastics material and a metallic piece coated in the latter by coulee under pressure of a mass of plastic material plasticized, and method of coating with a section of the gases and liquids of a metallic piece in a piece of plastic material

摘要

Leaktight bond to the gases and liquids between a piece of plastics material and a metallic piece, which is coated in the latter by coulee under pressure of a mass of plastic material plasticized and whose part coated is provided with one or more circumferential grooves on its outer face. / p & & p & a groove 3, at least, located coated in the part of the metallic piece 1, contains an annular joint of elastomer material 6, the filling axially. The groove is completed of a formed in the vicinity of its bottom a volume of degagement 7 not filled by the seal. The volume of degagement may be replaced by the use of a joint of elastomer has cells fermees.