Plastic Welding

Hot Gas Plastic Welding

Hot gas plastic welding is sort of a dead ringer for gas welding, nevertheless it employs lower temperatures. A specific gun produces hot air by using a feed for plastic, which makes the parts to melt and join them together. Its important for the plastic welding materials to hold similar chemistry. The technique is normally utilized for the manufacture of plumbers fittings, big chemical tanks, as well as heat exchangers, etc.

Contact Plastic Welding
In this process, the parts to become welded are placed together as well as the heated tips to punch them, melt, and join them together. It is similar to the spot welding process; however, electric conduction is replaced together with all the puncher tips to perform the overall task.

Hot Plate welding

In this strategy, a great platen employed to melt the parts to get welded, when the two parts are held inside the nests attached to two anvils placed opposite one another. The recent platen is allowed to move between both parts. The two parts are pressed at the platen and kept for example until the plastic welding materials melt, after which the platen is removed, and parts are pressed together to create a permanent joint.

YouTube video

High frequency welding

High frequency electromagnetic waves are increasingly being employed in this process, as certain plastics having chemical dipoles could possibly be heated with these waves. This can be one of the special variants of plastic welding and has very specific applications.

Ultrasonic welding

In this method, high frequency sound waves are utilized in ultrasonic welding to melt the parts to become welded.

Friction welding

In Friction welding, otherwise known as vibration welding, the parts are made to produce friction between them, and the effect of vibration between clamping along with the parts do the plastic welding causing material to melt, resulting in a weld.

Spin welding

The process involves holding a component stationary as well as the second kind to spin on part to be welded with high velocity and pressure, and hence making a weld.

Laser welding

In this process parts are pressurised even if a laser beam is passing through. The parts that will have to be welded will be needed to be translucent and opaque which has a difference in their opacity.

Solvent Welding

This technique uses a solvent to dissolve the polymers temporarily, for, the polymer chains become free to move and might be made to entangle with other dissolved polymer.

Fields of making use of Plastic Welding Some of many zones of application are provided below, nevertheless the technique could be used in various other fields also.

  • Assembly welding for mass produced domestic appliances
  • Fabrication welding of pipelines
  • High speed seam welding of films and garments
  • Precision welding of medical devices

Leave a Comment