| 摘要 |
<p>PURPOSE:To easily perform perfect connection without poor fusion by a method wherein the indication of timing for pulling the connector of a control device out of the connector pin of a plastic pipe joint is done at the end of energizing. CONSTITUTION:Plastic pipes 2 to be connected are inserted in a plastic pipe joint 1. Connectors 3 are inserted onto the connector pins 13 of the plastic pipe joint 1 for connection. The lower end part of the thermocouple 31 of each connector 3 is in the hole 15 for thermocouple of the plastic pipe joint 1 under the state that the lowermost end of the thermocouple comes into slight contact with the bottom of the hole 15 for thermocouple. The plastic pipe joint 1 is energized from a control device main body through the connectors 3. When the temperature of the plastic pipe 1 is raised and reaches the set temperature, energizing is stopped. After the stoppage of energizing to the plastic pipe joint 1, the lowering of the temperature of the joint is measured. When the temperature of the joint reaches a temperature, at which the disengagement of the connector 3 from the plastic pipe joint becomes possible, said temperature is indicated or alarm such as buzzer, voice or the like due to said temperature is issued. By removing the connectors 3 from the plastic pipe joint 1, the connection of the pipes is completed.</p> |
