Thermoplastic pipe fitting fastening device and anti-oxidation heating method

Abstract

The invention relates to a thermoplastic plastic pipe fitting fastening device and an anti-oxidation heating method. The thermoplastic plastic pipe fitting fastening device comprises an automatic adjusting mechanism (4) and a motor (54), the automatic adjusting mechanism (4) comprises a movable sealing plate (41), a first clamping piece (1) and a second clamping piece (2), the movable sealing plate (41) seals a pipe opening of a thermoplastic plastic pipe fitting (6) through a first transmission mechanism, and the first clamping piece (1) and the second clamping piece (2) clamp the pipe wall of the thermoplastic plastic pipe fitting (6) through a second transmission mechanism. After the pipe opening sealing and the pipe wall clamping are synchronously carried out, inert gas is injected into the thermoplastic plastic pipe fitting (6) to ensure that when an electromagnetic heating device (8) is used for performing hot melt connection on the thermoplastic plastic pipe fitting (6) and a connector, the phenomenon that the connection position becomes brittle due to high-temperature oxidation of thermoplastic materials in the pipe does not occur.

Description

technical field [0001] The invention relates to a fastening device for a thermoplastic pipe fitting and an anti-oxidation heating method. Background technique [0002] Thermoplastic pipe fittings are high-tech composite chemical building materials, and chemical building materials are the fourth largest new type of new building materials after steel, wood and cement. Chemical building materials have made great progress and developed rapidly in our country, especially the widespread use of new environmentally friendly plastic pipes, which has set off a revolution to replace traditional building materials. Plastic pipes are widely used in the fields of building water supply and drainage, urban water supply and drainage, and gas pipes because of their advantages such as small water loss, energy saving, material saving, ecological protection, and convenient completion. They have become the main force of urban construction pipe networks in the new century. [0003] The connection...

AI Technical Summary

Problems solved by technology

[0005] The present invention designs a fastening device and anti-oxidation heating method for thermoplastic pipe fittings. The technical problem it solves is that when the existing pipes are heated, the external heating and curing quality of the pipes can be inspected by naked eyes, but the structure of the inner wall of the pipes cannot be seen by the naked eye. Uncontrollable heating deformation leads to uncontrollable connection quality. In addition, thermoplastic pipes are easily affected by air oxidation during heating, which further deteriorates the quality of internal connections and directly affects the service life of pipes.

Images