HF WELDER OPERATOR-QUALITY(PIPE DIVISION)

Job Description:

Urgent requirement for HF WELDER OPERATOR-QUALITY(PIPE DIVISION) for reputed steel plant at raipur location.

• Read blueprints and drawings and take or read measurements to plan layout and procedures
• Determine the appropriate welding equipment or method based on requirements
• Set up components for welding according to specifications (e.g. cut material with powered saws to match measurements)
• Operate angle grinders to prepare the parts that must be welded
• Align components using calipers, rulers etc. and clamp pieces
• HF energy in the form of an electromagnetic field (27.12 MHz) and pressure to the material surfaces to be joined. A generator produces the energy. The tool used to supply the energy is called an electrode.
• High frequency induction welding is used to make pipe or tube from strip which is fed into rolls which form the strip into a cylindrical shape. The faying edges are brought together between squeeze rolls to produce a V at the point of welding, with an included angle of typically 2-5° for steel.
  A high frequency coil introduces current into the tube ahead of the squeeze rolls. This current is concentrated on the edges of the strip in the V and resistance heats a narrow zone at the edges to the welding temperature. The squeeze rolls consolidate the weld by expelling any melted material and contaminants and forming a small upset bead inside and outside the tube. These beads may be immediately scarfed from the tube to give a smooth surface. Thin wall steel tube may be welded at up to a few hundred m/min.