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Hot gas welding, also known as hot air welding, is a plastic welding technique using heat. A specially designed heat gun, called a hot air welder, produces a jet of hot air that softens both the parts to be joined and a plastic filler rod, all of which must be of the same or a very similar plastic. (Welding PVC to acrylic is an exception to ...
Carrigan et al. [4] used a pipe crawler operating in the K-band frequency range (18-16.5 GHz) to inspect HDPE pipe for various defects that would be commonly found in buried and undersea pipelines. Three types of set-ups were used to model the conditions of above ground pipelines, plastic lined metal pipe, and undersea pipelines.
Hot plate welding, referred to as fusion welding in many industries, is commonly used to join plastic pipes. These pipes, as opposed to steel ones, are less likely to rupture during an earthquake. [1] Pipe welding uses special joint configurations, namely butt, socket and saddle/sidewall, each with its own welding procedures.
Honda overhauled the Marysville plant over several years one department after another without losing a day of production. During overhaul, Honda replaced old hydraulic welding systems designed for specific models with programmable electronic welding robots that can weld different vehicle body types for better flexibility and higher productivity ...
It is most commonly used to join polyethylene (PE) and polypropylene (PP) pipes. Electrofusion welding is the most common welding technique for joining PE pipes. [1] Because of the consistency of the electrofusion welding process in creating strong joints, it is commonly employed for the construction and repair of gas-carrying pipelines. [2]
The materials to be welded experience similar vibrations to those in plunge welding but shorter in time. [3] Hold force to the newly welded region is provided by previously welded section that has come out of the tooling and cooled down. [1] Scan welding is a type of continuous ultrasonic welding in which case large plates or sheets can be ...
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The two most important welding parameters that affect the mechanical performance are welding pressure and time. Developing parameters for different advance thermoplastic composite can be challenging because the high elastic modulus of the material will have a higher heat generation, requiring less weld time.