Welding & Joining
WHAT IS PLASTIC WELDING
Plastic welding is welding for semi-finished plastic materials and is described as a process of uniting softened surfaces of materials, generally with the aid of heat. Welding of thermoplastics is accomplished in three sequential stages, namely:
- Surface preparation
- Application of heat and pressure
- Cooling
Numerous welding methods have been developed for the joining of semi-finished plastic materials. Based on the mechanism of heat generation at the welding interface, welding methods for thermoplastics can be classified as external and internal heating methods.
Production of a good quality weld does not only depend on the welding methods, but also weldability of base materials. Therefore, the evaluation of weldability is of higher importance than the welding operation for plastics.
Most important for long lasting quality is the experience and knowledge of the welder, at Thermoweld we have a collective 25 years experience.
.
Butt Fusion
Butt fusion welding is the name given to hot plate welding of thermoplastic pipes. It is one of two main techniques for the fusion joining of polyethylene gas and water pipe.
Electrofusion
Electrofusion welding is a form of resistive implant welding used to join pipes. A special sleeve is required, so it is more expensive than some other pipe-joining methods.
Extrusion Welding
Is used in the manufacture of thick-section fabrications, such as tanks and pipes, where it is necessary to produce large volume, homogeneous seams in a single pass.
Compression
An HDPE compression fitting is a mechanical fitting used to connect HDPE pipes to a fixture or valve. These compression fittings are widely used in plumbing and piping systems.
Call Us Anytime: +27 84 444 5525
Send us an Email: info@thermoweld.co.za
Address: Unit 11 Austerville Factories, Maryhill Road, Jacobs