All You Need to Know About Plastic Extrusion Welders

Extrusion welding is a process for welding composites and thermoplastics. It was derived from hot gas welding, and it can either be done manually or automatically using specially designed equipment, such as the plastic extrusion welder. The machine makes it simpler to fabricate thick-section pipes and tanks, and it is versatile for producing homogeneous, high-volume seams in one pass. Those things may be impossible to do with traditional hot gas welding, requiring multiple runs to create a single seam.

The plastic extrusion welder comes in different sizes. It can be compact with a built-in air supply, or large and heavy machines for more demanding applications, such as welding lining material for landfills. You can get the machine in different configurations, such as 110v and 240v. Historically, extrusion welding was used mainly for joining HDPE and PP. Modern welders are now capable of welding PVDF and PVC. For use on PVC, the extruder must be purged with a PE or PP weld rod to avoid leaving the barrel’s degraded material.

Manufacturers have designed high-quality plastic extrusion welder to make accurately define specific parameters, which are likely to affect the quality of the weld. These parameters include the quantity of the hot gas, the welding material’s hot flow rate and temperature, and the hot gas temperature for substrate pre-heat. Welding speed depends on the extrudate or welding material’s flow rate, thickness, the design and size of the PTFE welding shoe, and the cross-sectional part of the seam.

For tank fabrication, the plastic extrusion welder can be practical for welding tops and bases. In some applications, it may be used to create the body panels, too. Where manual welding techniques are necessary to fabricate large section pipes, extrusion welding can replace them. In some cases, the device may be used for environmental construction, particularly in joining a lining material for building landfill waste sites, roof coverings, and lagoons. The welder is also being utilized widely in water engineering and agriculture, like making manways, land drainage systems, and sump tanks.

3 Safety Tips to Keep In Mind While Using Butt Fusion Machine

Butt fusion machines are commonly used for welding the HDPE pipe in various industries. Some of these machines are labor-intensive, while some are run with easy-to-use controls and hydraulics. Though the process of welding HDPE is straight forward, many hazards are associated with this task.

     Safety Tips for using the Butt Fusion Machine

Each welding machine is different and holds unique hazards. To run a specific butt-fusion, a fusion operator should have the proper training and knowledge of the process. Moreover, before using the welder, the operator should also carefully read the      Safety sections of the user's manual. Considering the operator's safety and others working nearby, here are a few tips to keep in mind while using the Butt fusion welder.

1. Use personal safety equipment    

Using personal protective equipment is essential for the fusion operators for their protection from heaters and sharp blades. Thus, wearing protective boots, gloves, eyewear, and a hard hat is always a good idea, especially when cutting bands from pipe bundles or coils. One should tie-up hair, wear tight-fit clothes, and remove jewelry to avoid catching control of moving machinery.

2. Check working condition

Before you start with the fusion process, make sure the fusion unit is well maintained and working in order. The pipe should extend to the machine straight and at a balanced level. One should check the functioning of the heater and clean its surface with a non-synthetic cloth. It is better to block the working area to control unnecessary vehicle and pedestrian traffic.

3. Alignment of pipes

Once the fusion welder is cleaned and found in perfect working order, the pipes are safely clamped into the machine. The ends of the gas pipe should face towards the machine to avoid gaps and voids.  Pipes are clamped in such a way that their stamped markings are in line, and there is a minimal mismatch in diameter. Proper adjustment of pipes is vital to ensure the fusion process is performed safely.

These safety tips are indispensable for the smooth functioning of the fusion machine. When planning out welding work, consider not only the immediate dangers of the process but also lifting and moving the pipe. Keeping safety in mind, one should choose to work with co-workers and experienced operators.