How To Weld Plastics- Welding Types For Rigid Plastics

Author : Chris Copper | Published On : 06 May 2021

Plastic Welding Gold Coast

There are numerous reasons why you will be in dire need of welding. One such instance is the repair of the leaking poly tank! You might seek help from online tutorials to weld plastics but first, make sure to know which kind of welding will be the best for the repair of rigid plastic:

Identify the type of plastic:

If you are a novice in understanding the different types and grades of plastic, then taking help from professional plastic welding experts of Gold Coast is vital. You cannot just see the plastic and determine what kind of welding it will require.

For instance, many types of polypropylene can be readily welded using a polypropylene welding rod. Hence, it is crucial for you first to identify the material and then begin the welding process. These days such identification has become easy as plastic manufacturers stamp the plastics with identification codes and marks. 

Pendulum welding:

Of the many types of plastic welding, pendulum welding holds an esteemed position. Pendulum welding can be used for short weld runs, and when the part is welded challenging to access. The temperature takes approximately 2 minutes to reach the desired level. All kinds of welding processes must be carried with sophistication and following all necessary safety measures. 

Pendulum welding should be carried in one continuous stretch of the entire area to be welded. The pendulum motion must provide even heating to both the parent material and the welding rod throughout the welding process. Trimming and sanding can be done once the welded area cools down.

Speed welding:

The speed plastic welding technique in Gold Coast is usually used for long welds runs. Speed welding is a relatively fast process that is compared to the pendulum welding technique. Always ensure that you are using the correct welding nozzle for specific functions. This is because; nozzles have varying profiles such as round, tapered and triangular.

The welding rod needs to be inserted in the appropriate nozzle only after the temperature reaches an optimal. Speed welding is a relatively quick process and very easy to achieve.

Extrusion welding:

Extrusion welding is one such type of plastic welding that is used to weld thermoplastic materials. It was developed in the early 1960s and brought the revolution to hot air welding. This process uses a welding head or shoe with a nozzle for hot air and a separate plasticising chamber (known as the barrel) to push the filler material out through the welding head.

The plasticised filler material, now known as the extrudate, is applied with pressure to ensure good bonding, followed by sufficient cooling. All in all, most of the extruder welders usually use a hand-held hot air plastic welding tool for small finishing welding jobs.  

The bottom line: The welding processes differ from each other regarding the kind of plastic to be repaired and the tools involved. You might want to take up welding as a DIY project but ask yourself these questions first: Do you have the right tools? Are you confident in addressing the issue from its root cause? All in all, it is highly advisable to invest in a reliable and authentic welding company to solve your welding queries in a breezy way!