Plasma Welding Machine 101: An Introduction2020-08-20

A plasma is an ionized gas that consists of charged ions, and the characteristics of plasma are noticeably different from ordinary gases. For this reason, plasma can be considered as the “fourth state of matter.”

 

Plasma is a gas that has been heated to an extent where it becomes highly conductive. In a welding process, this enables easy movement of electrical current.

 

Currently, the plasma welding machine is being used in various industries where consistency, minimal downtime, and the high production value is important.

 

For this reason, when you want to buy a plasma welding machine, ensure to patronize a reliable manufacturer for the best product

 

Components of plasma welding machine

Plasma welding machine consists of the following major components;

1. Welding torch

2. Power source

3. Shielding gas cylinder

4. Plasma gas cylinder

5. Water chiller

6. Positioner

7. Wire feeder, etc.

 

Description of plasma welding machine

Plasma arc welding (PAW) is an enhanced form of Tungsten Inert Gas (TIG) welding.

 

The major difference from TIG is that in plasma welding, by positioning the electrode within the body of the torch, the plasma arc can be separated from the shielding gas envelope.

 

The electric arc is formed between an electrode (tungsten) and the work-piece.

 

All welding arcs are partially ionized plasma except for the one present in plasma arc welding which is a constricted arc plasma.

 

This constriction raises the temperature of the arc which then gives the shape of a beam.

 

These enable high welding speed, deep penetration, and minimum heat input to the job.

 

Benefits of using the plasma welding machine

There are several advantages of plasma welding machine, and some of them include;

1. High productivity

2. Less residual stress

3. Less embrittlement

4. Reduces porosity

5. The directionality and concentration of the arc are more precise.

6. Less deformation due to better use of the welding energy which results in the minimum heat-affected zone.

7. High quality of welding

8. Absence of weld pool contamination by the electrode

9. Less sensitive to changes in arc length.

10. Arc transfer with no frequency noise

11. Reduced number of passes, minimum consumption of filler wire, and high welding speed results in time-saving.

 

Materials Suitable for Plasma Welding

The plasma welding process can be used to weld different materials including;

1. Titanium

2. All ferrous and non-ferrous alloys

3. Nickel

4. Copper

5. Gold alloys

6. Silver

7. Tantalum and all kinds of heat-resisting steels.

 

User Industries of Plasma Welding

Various industries and applications benefit from the plasma welding process as well as the plasma welding machine. They include;

· Aerospace and Space Industries

· Machine and Plant Construction

· Chemical Industries

· Automobile

· Ship Constriction

· Medical Industry

· Railway

· Cryogenics

· Pipe Welding

· Stainless Steel Industry

· Thermocouple Industry

· Compressors

· Tube Mills

· Pressure Vessels

· Edge Welded Bellows

· Tank Equipment and Pipeline Construction

 

Bottom Line

The plasma welding process is an advanced welding technique that uses plasma to transfer an electric arc to a work-piece.

 

A lot of instruments require welds of great accuracy. The plasma welding machine, with its control and exact precision, provides the capacity to make these important welds.

 

The plasma welding process is seen as an exotic welding process in the market today, and it is currently being used across a wide range of industries.

 

In other to get the best plasma welding machine, do contact a reliable manufacturer and be sure of getting the best product without breaking the bank.