To provide an anticorrosive pipe joint capable of molding in a proper shape without deforming a resin layer after molding even in a resin of large shrinkage factor injection molded into a joint main unit, for instance, a resin material of polyethylene or the like, to ensure seal performance to an internal peripheral surface of a connection lining pipe screwed to the joint main unit.
In this pipe joint comprising a joint main unit having an internal thread in an end part and a recessed part in the inner surface of the central part, a resin layer provided through a bonding agent layer in the recessed part inner surface of the joint main unit, and a cylindrical part extended from the resin layer to be screwed to the internal thread to come into contact with the inner surface of a connected lining pipe, the bonding agent layer 18 is provided partly in the joint main unit recessed part inner surface to provide the resin layer. The bonding agent layer 18 is provided in the inner surface of a part near the internal thread except the central part of the recessed part inner surface, or in the inner surface of the central part except the part near the internal thread, to provide thereon the resin layer 14. The resin layer is provided by injection molding a polyethylene resin.
KATAYAMA YOSHIO
NAKADA TSUMORU
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