DURCH ELEKTROSCHMELZEN HERGESTELLTE VERBINDUNG.

摘要

This invention relates to an electrofusion joint, in which the electric power is supplied to a heating wire, which is buried in a resin, to melt the resin and thereby connect pipes together, and more particularly to an electrofusion joint, in which a member to be connected to a sensor-carrying connector is molded unitarily with the joint with a code member, which is to be detected by the sensor, molded unitarily with the member to be connected. A code displayed on the code member is read by the sensor and judged by a control unit as the quantity of power supplied to the heating wire through the connector and the member to be connected, or as the time during which the electric current is thus supplied to the heating wire, whereby an electric power of a predetermined magnitude is supplied thereto. Abstract The invention relates to an electro-fusion joint including a resin body and a heat-generating wire enbedded therein. The heat-generating wire supplied with electrical power generated heat so as to fuse the resin thereby connecting pipes which are inserted into the resin body. The resin body is provided with a mating connector formed integrally therewith and capable of bbeing connected to a connector which has a sensor. The mating connector has an integral coding portion adapted to be detected by the sensor. The code presented by the coding portion is read by the sensor and the data of the read code is delivered to a controller which determines the amount of the electrical power to be supplied to the heat-generating wire through the connector and the mating connector.