In High Frequency Welded Pipe production process, hot rolled steel coils are fed with a high capacity accumulator in order to achieve continuous welding.
High-frequency welding is a welding process in which heat sources used to fuse the surface are obtained by high-frequency (HF) AC (AC) resistance heating. Use cemented carbide cutters to mill the edge of the coil to ensure high quality welding.
A set of cage rollers and fins are then used to form a coil by means of a cold forming method, and then the induction or conduction method is used to engage the high-frequency current.
With its expertise in the field of high-frequency welding, TWI has provided a range of projects and consulting services for the industry, including:
Mechanical properties of welded pipe
Metallurgical Welding Research
Optimization of high frequency butt welding for custom blanks Resources：
Study on fracture mechanics of test equipment
Corrosion and metallurgical testing equipment
Process suggestions and troubleshooting
Customized training Courses
Application areas HFW welded steel tubes are widely used in petroleum, natural gas, water and other liquid transport and distribution lines, heating, cooling, ventilating ducts and construction of steel structures for general purposes, through accurate production tolerances and high-volume manufacturing methods.
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