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  • China High Frequency Welded Steel Round Duct Square

    ZY-HF16 Type Manufacturer high speed high frequency pipe welding production line is specialized equipment to produce high frequency straight seam welded pipe for structural pipe and industrial pipe with Φ7.5~Φ12.7mm and wall thickness of δ0.3-1.0mm. Through optimization design, best materials choice, and accurately fabrication and rolls, the whole line can be reached high precision and high ...

    Get Price
  • High Frequency Induction (HFI) Welded Pipe

    The high-frequency induction (HFI) resistance pressure welding technique for longitudinal welding. The endless strip passes through rolling stands where it is shaped to an open pipe, which runs through a high-frequency inductor consisting of a metal coil with …

    Get Price
  • High frequency tube welding machine Manufacturers ...

    high frequency tube welding machine manufacturer/supplier, China high frequency tube welding machine manufacturer & factory list, find qualified Chinese high frequency tube welding machine manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com.

    Get Price
  • high frequency welded pipe production line HG50 real

    high frequency power: 150KW. The sheet will be siltted before being fed into the machine.The plate will be formed into pipe and then welded to finish.Roll forming unit is used for forming working. Various machine could meet requirement of pipe production with different specifications.

    Get Price
  • Factory Customized Stainless Steel Welded Pipe/Tube

    Stainless Steel Welded Pipe Making Machine. The plate in certain width after slitting line and stripping is unfolded and leveled. Then, they are sent into forming machine. Used the roller, the plate is bent into pipe state. The edge of the steel plate is melted by making use of the proximity effect and skin effect of high frequency current.

    Get Price
  • How to Ensure the Quality of High-frequency Welded

    2021-7-30u2002·u2002The production process of high-frequency welded pipes (ERW steel pipe) mainly depends on the type of product.From raw materials to finished products, a series of processes are required. The completion of these processes requires various corresponding mechanical equipment, welding, electrical control, and testing equipment.

    Get Price
  • High-Frequency Welding - an overview

    Jiri George Drobny, in Handbook of Thermoplastic Elastomers (Second Edition), 2014. 4.12.2.6 High Frequency (RF) Welding. High frequency welding or radio-frequency (RF) welding or dielectric welding uses high frequency (13–100 MHz) electromagnetic energy to generate heat in polar materials, resulting in melting and weld formation after cooling. A high intensity radio signal is used to impart ...

    Get Price
  • Manufacturing Process for Welded Pipes. How To Produce ...

    2019-3-12u2002·u2002In the ERW and EFW manufacturing process welded pipes are formed by hot or cold rolling plate and welding the seam. In order to keep the outside (O.D.) surface of a welded pipe smooth and uniform a cutting tool called scarfing blade is used to remove the weld flash. Scarfing from the inside (I.D.) welded flash is also possible.

    Get Price
  • High frequency tube welding machine Manufacturers ...

    high frequency tube welding machine manufacturer/supplier, China high frequency tube welding machine manufacturer & factory list, find qualified Chinese high frequency tube welding machine manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com.

    Get Price
  • Weld steel pipes, Welded steel pipe, Weld pipe, Welding ...

    Stainless Steel Welded Pipe. Our staff are qualified and certified according to all current welding procedures, thus guaranteeing our customers longitudinally welded stainless steel pipes in line with the requirements. Stainless steel contains chromium which provides the properties of corrosion resistance at high temperatures.

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  • China Pipe Making Machine manufacturer, Tube Mill, Pipe ...

    2014-9-2u2002·u2002Our company is specializing in designing, manufacturing and selling pipe making machinery, including uncoiler, shearing machine, spiral accumulator, high-frequency welded pipe forming mill and all the other equipment you need during the pipe production line.

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  • pipe fabrication production line metal round square credit ...

    Pipe Production Catalogue. 2015-10-23u2002·u2002Square and rectangular section pipes are shaped from round electric-welded pipes on the line of the electric welding mill. At the consumer's request pipes are packed in hexagonal and box bundles.

    Get Price
  • High-Frequency Welding - an overview

    Jiri George Drobny, in Handbook of Thermoplastic Elastomers (Second Edition), 2014. 4.12.2.6 High Frequency (RF) Welding. High frequency welding or radio-frequency (RF) welding or dielectric welding uses high frequency (13–100 MHz) electromagnetic energy to generate heat in polar materials, resulting in melting and weld formation after cooling. A high intensity radio signal is …

    Get Price
  • HSAW pipes, steel pipe, Steel pipe

    Helical submerged arc welding (spiral) steel pipe is the full name of hsaw pipe, to the strip into the welded pipe unit, the multi-roll rolling, the strip gradually rolled up to form a circular tube with an open gap, adjust the reduction of squeezing roller so that the weld gap control in 1 - 3mm, and make both ends of the weld flush.

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  • Pipe Production Catalogue

    2015-10-23u2002·u2002page 10 Pipe Production Catalogue page 11 Pipe Production OMK manufactures versatile electric-welded pipes with diameters from 12.7 to 1422mm (0.5'-56') and wall thicknesses from 1 to 50mm (0.04'-1.97'). Pipes have two- or threelayer anti-corrosive polyethylene or epoxy coatings. Equipment and production process employed

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  • Exploring the welded tube making process: The basics for ...

    2001-5-30u2002·u2002High Frequency (HF) Welding. Today, most mild steel and aluminum tube is welded with HF welders, which are also suitable for 400 series stainless and even 300 series if the tubing is for decorative use. Nearly 95 percent of the HF welders sold are solid-state, using transistors to generate the alternating frequency current.

    Get Price
  • Difference between ERW, HFW, SAW and EFW pipe – www ...

    2 days agou2002·u2002It is mainly used to make pipes with welded longitudinal seams or spiral seams. The welded pipe is welded by high-frequency welding technology and is mainly used for the transportation of pressurized fluids such as water, oil, and natural gas. Sizes: Out Diameter:12″-24″ Wall Thickness: 1.65-20mm Length: 3m-12m

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  • Page 2130

    Sep 4, 2001. Tube and Pipe Production. Article. Edge treatment of coil strip before it enters a tube and pipe mill, called skiving, is a rapidly advancing technology. Improving the coil edge before it is welded helps increase the quality of the seam join and …

    Get Price
  • China High Frequency Welded Steel Round Duct Square

    ZY-HF16 Type Manufacturer high speed high frequency pipe welding production line is specialized equipment to produce high frequency straight seam welded pipe for structural pipe and industrial pipe with Φ7.5~Φ12.7mm and wall thickness of δ0.3-1.0mm. Through optimization design, best materials choice, and accurately fabrication and rolls, the whole line can be reached high precision and high ...

    Get Price
  • High Frequency Induction (HFI) Welded Pipe

    The high-frequency induction (HFI) resistance pressure welding technique for longitudinal welding. The endless strip passes through rolling stands where it is shaped to an open pipe, which runs through a high-frequency inductor consisting of a metal coil with single or multiple windings.

    Get Price
  • High frequency tube welding machine Manufacturers ...

    high frequency tube welding machine manufacturer/supplier, China high frequency tube welding machine manufacturer & factory list, find qualified Chinese high frequency tube welding machine manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com.

    Get Price
  • high frequency welded pipe production line HG50 real

    high frequency power: 150KW. The sheet will be siltted before being fed into the machine.The plate will be formed into pipe and then welded to finish.Roll forming unit is used for forming working. Various machine could meet requirement of pipe production with different specifications.

    Get Price
  • Factory Customized Stainless Steel Welded Pipe/Tube

    Stainless Steel Welded Pipe Making Machine. The plate in certain width after slitting line and stripping is unfolded and leveled. Then, they are sent into forming machine. Used the roller, the plate is bent into pipe state. The edge of the steel plate is melted by making use of the proximity effect and skin effect of high frequency current.

    Get Price
  • How to Ensure the Quality of High-frequency Welded

    2021-7-30u2002·u2002The production process of high-frequency welded pipes (ERW steel pipe) mainly depends on the type of product.From raw materials to finished products, a series of processes are required. The completion of these processes requires various corresponding mechanical equipment, welding, electrical control, and testing equipment.

    Get Price
  • High-Frequency Welding - an overview

    Jiri George Drobny, in Handbook of Thermoplastic Elastomers (Second Edition), 2014. 4.12.2.6 High Frequency (RF) Welding. High frequency welding or radio-frequency (RF) welding or dielectric welding uses high frequency (13–100 MHz) electromagnetic energy to generate heat in polar materials, resulting in melting and weld formation after cooling. A high intensity radio signal is used to impart ...

    Get Price
  • Introduction to Welded Pipe Manufacturing - The Process

    2018-7-26u2002·u2002High Frequency Welding; Rotary Contact Wheel Welding. High Frequency Welding. Initially ERW manufacturing process used low frequency A.C. current to heat the edges. This low frequency process was used from the 1920's until 1970. In 1970, the low frequency process was superseded by a high frequency ERW process which produced a higher quality weld.

    Get Price
  • Manufacturing Process for Welded Pipes. How To Produce ...

    2019-3-12u2002·u2002In the ERW and EFW manufacturing process welded pipes are formed by hot or cold rolling plate and welding the seam. In order to keep the outside (O.D.) surface of a welded pipe smooth and uniform a cutting tool called scarfing blade is used to remove the weld flash. Scarfing from the inside (I.D.) welded flash is also possible.

    Get Price
  • Production processes for Welded Pipes – IspatGuru

    2020-2-6u2002·u2002In large diameter pipe production, the welding speeds for the tack weld ranges from around 5 m/min to 12 m/min. Production of longitudinal welded pipe (U-ing/O-ing process) The plates used for the longitudinally welded pipes are formed on presses having open dies for the U-ing and closed dies for the O-ing operations.

    Get Price
  • China High Frequency Welded Steel Round Duct Square

    ZY-HF16 Type Manufacturer high speed high frequency pipe welding production line is specialized equipment to produce high frequency straight seam welded pipe for structural pipe and industrial pipe with Φ7.5~Φ12.7mm and wall thickness of δ0.3-1.0mm. Through optimization design, best materials choice, and accurately fabrication and rolls, the whole line can be reached high precision and high ...

    Get Price
  • High Frequency Induction (HFI) Welded Pipe

    The high-frequency induction (HFI) resistance pressure welding technique for longitudinal welding. The endless strip passes through rolling stands where it is shaped to an open pipe, which runs through a high-frequency inductor consisting of a metal coil with single or multiple windings.

    Get Price
  • High frequency tube welding machine Manufacturers ...

    high frequency tube welding machine manufacturer/supplier, China high frequency tube welding machine manufacturer & factory list, find qualified Chinese high frequency tube welding machine manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com.

    Get Price
  • high frequency welded pipe production line HG50 real

    high frequency power: 150KW. The sheet will be siltted before being fed into the machine.The plate will be formed into pipe and then welded to finish.Roll forming unit is used for forming working. Various machine could meet requirement of pipe production with different specifications.

    Get Price
  • Factory Customized Stainless Steel Welded Pipe/Tube

    Stainless Steel Welded Pipe Making Machine. The plate in certain width after slitting line and stripping is unfolded and leveled. Then, they are sent into forming machine. Used the roller, the plate is bent into pipe state. The edge of the steel plate is melted by making use of the proximity effect and skin effect of high frequency current.

    Get Price
  • How to Ensure the Quality of High-frequency Welded

    2021-7-30u2002·u2002The production process of high-frequency welded pipes (ERW steel pipe) mainly depends on the type of product.From raw materials to finished products, a series of processes are required. The completion of these processes requires various corresponding mechanical equipment, welding, electrical control, and testing equipment.

    Get Price
  • High-Frequency Welding - an overview

    Jiri George Drobny, in Handbook of Thermoplastic Elastomers (Second Edition), 2014. 4.12.2.6 High Frequency (RF) Welding. High frequency welding or radio-frequency (RF) welding or dielectric welding uses high frequency (13–100 MHz) electromagnetic energy to generate heat in polar materials, resulting in melting and weld formation after cooling. A high intensity radio signal is used to impart ...

    Get Price
  • Introduction to Welded Pipe Manufacturing - The Process

    2018-7-26u2002·u2002High Frequency Welding; Rotary Contact Wheel Welding. High Frequency Welding. Initially ERW manufacturing process used low frequency A.C. current to heat the edges. This low frequency process was used from the 1920's until 1970. In 1970, the low frequency process was superseded by a high frequency ERW process which produced a higher quality weld.

    Get Price
  • Manufacturing Process for Welded Pipes. How To Produce ...

    2019-3-12u2002·u2002In the ERW and EFW manufacturing process welded pipes are formed by hot or cold rolling plate and welding the seam. In order to keep the outside (O.D.) surface of a welded pipe smooth and uniform a cutting tool called scarfing blade is used to remove the weld flash. Scarfing from the inside (I.D.) welded flash is also possible.

    Get Price
  • Production processes for Welded Pipes – IspatGuru

    2020-2-6u2002·u2002In large diameter pipe production, the welding speeds for the tack weld ranges from around 5 m/min to 12 m/min. Production of longitudinal welded pipe (U-ing/O-ing process) The plates used for the longitudinally welded pipes are formed on presses having open dies for the U-ing and closed dies for the O-ing operations.

    Get Price
  • China High Frequency Welded Steel Round Duct Square

    ZY-HF16 Type Manufacturer high speed high frequency pipe welding production line is specialized equipment to produce high frequency straight seam welded pipe for structural pipe and industrial pipe with Φ7.5~Φ12.7mm and wall thickness of δ0.3-1.0mm. Through optimization design, best materials choice, and accurately fabrication and rolls, the whole line can be reached high precision and high ...

    Get Price
  • High Frequency Induction (HFI) Welded Pipe

    The high-frequency induction (HFI) resistance pressure welding technique for longitudinal welding. The endless strip passes through rolling stands where it is shaped to an open pipe, which runs through a high-frequency inductor consisting of a metal coil with single or multiple windings.

    Get Price
  • High frequency tube welding machine Manufacturers ...

    high frequency tube welding machine manufacturer/supplier, China high frequency tube welding machine manufacturer & factory list, find qualified Chinese high frequency tube welding machine manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com.

    Get Price
  • high frequency welded pipe production line HG50 real

    high frequency power: 150KW. The sheet will be siltted before being fed into the machine.The plate will be formed into pipe and then welded to finish.Roll forming unit is used for forming working. Various machine could meet requirement of pipe production with different specifications.

    Get Price
  • Factory Customized Stainless Steel Welded Pipe/Tube

    Stainless Steel Welded Pipe Making Machine. The plate in certain width after slitting line and stripping is unfolded and leveled. Then, they are sent into forming machine. Used the roller, the plate is bent into pipe state. The edge of the steel plate is melted by making use of the proximity effect and skin effect of high frequency current.

    Get Price
  • How to Ensure the Quality of High-frequency Welded

    2021-7-30u2002·u2002The production process of high-frequency welded pipes (ERW steel pipe) mainly depends on the type of product.From raw materials to finished products, a series of processes are required. The completion of these processes requires various corresponding mechanical equipment, welding, electrical control, and testing equipment.

    Get Price
  • High-Frequency Welding - an overview

    Jiri George Drobny, in Handbook of Thermoplastic Elastomers (Second Edition), 2014. 4.12.2.6 High Frequency (RF) Welding. High frequency welding or radio-frequency (RF) welding or dielectric welding uses high frequency (13–100 MHz) electromagnetic energy to generate heat in polar materials, resulting in melting and weld formation after cooling. A high intensity radio signal is used to impart ...

    Get Price
  • Introduction to Welded Pipe Manufacturing - The Process

    2018-7-26u2002·u2002High Frequency Welding; Rotary Contact Wheel Welding. High Frequency Welding. Initially ERW manufacturing process used low frequency A.C. current to heat the edges. This low frequency process was used from the 1920's until 1970. In 1970, the low frequency process was superseded by a high frequency ERW process which produced a higher quality weld.

    Get Price
  • Manufacturing Process for Welded Pipes. How To Produce ...

    2019-3-12u2002·u2002In the ERW and EFW manufacturing process welded pipes are formed by hot or cold rolling plate and welding the seam. In order to keep the outside (O.D.) surface of a welded pipe smooth and uniform a cutting tool called scarfing blade is used to remove the weld flash. Scarfing from the inside (I.D.) welded flash is also possible.

    Get Price
  • Production processes for Welded Pipes – IspatGuru

    2020-2-6u2002·u2002In large diameter pipe production, the welding speeds for the tack weld ranges from around 5 m/min to 12 m/min. Production of longitudinal welded pipe (U-ing/O-ing process) The plates used for the longitudinally welded pipes are formed on presses having open dies for the U-ing and closed dies for the O-ing operations.

    Get Price
  • pipe fabrication production line automatic electric affordable

    Main technical parameters of steel tube welding machine: ZY60 pipe Diameter of Welded Tubes 22-76mm Wall Thickness of Welded Tube 0.8-3.5mm Speed of Tube Welding 20-65M/min Power of Major motor 110KW High Frequency Power 200KW Specification of steel tube production line 1.

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  • World's Largest Welded Line Pipe Manufacturer - Welspun

    Welspun Corp Limited (WCL) is one of world's-leading welded line pipe manufacturer, and the flagship company of the Welspun Group. At Welspun we believe in acquiring talent, developing skills, engaging individuals in multiple projects, and providing them with world-class experience and exposure, while keeping our core values at the crux of these activities.

    Get Price
  • ERW Steel Pipe & ERW Casing - Welded Steel Pipe,

    High-frequency straight seam electric-resistance welded steel pipe(erw steel pipe) is hot-rolled coil after forming machine, the use of high-frequency current skin effect and proximity effects, the tube edge heating and melting, squeeze roller under pressure welding to achieve production.High-frequency resistance welding steel pipe, welding pipe and ordinary welding process is not the same ...

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  • Pipe Production Catalogue

    2015-10-23u2002·u2002Pipes are produced by high-frequency welding with induction current lead. Pipes are subjected to hydraulic and mechanical tests. Welds undergo non-destructive testing. Square and rectangular section pipes are shaped from round electric-welded pipes on the line of …

    Get Price
  • Large OD Welded Stainless Pipe

    1. Production of welded stainless steel pipes since 2005. 2. Working with customers from Europe,West Asia,South America,since 2006etc. 3. Samples can be delivered within 10 days after confirmation. 4. 40 days as the production period and delivery after order confirmation. 5. 20,000 meters of seamless steel tubes in stock. 6.

    Get Price
  • Exploring the welded tube making process ... - The Fabricator

    2001-5-30u2002·u2002High Frequency (HF) Welding. Today, most mild steel and aluminum tube is welded with HF welders, which are also suitable for 400 series stainless and even 300 series if the tubing is for decorative use. Nearly 95 percent of the HF welders sold are solid-state, using transistors to generate the alternating frequency current.

    Get Price
  • High-frequency electric resistance ... - The Fabricator

    2010-6-1u2002·u2002Architects and engineers are designing structures with new and innovative shapes. To meet these ever-changing requirements, manufacturers may turn to solid-state, high-frequency electric resistance welding (HF ERW) to produce engineered structural sections at high speeds with unlimited beam profiles, better structural performance, and with lighter weights.

    Get Price
  • Standard PiPe & Line PiPe - ITT Grinnell

    2019-9-8u2002·u2002USS m1407 erW Pipe nPS 8 thru 12 for Lift devices USS m1430 Seamless Steel Slurry Pipe - Grade USS 430 USS m1431 Seamless Slurry Pipe to be Heat treated. Primarily for mechanical Joining USS m1470 Seamless Steel Pipe for Fabrication into Ordinary Welding Fittings USS m1471 Seamless Steel Pipe for Fabrication into High-Strength Welding Fittings

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  • 01-SAMSS-333.PDF - Materials System ... - Course Hero

    Document Responsibility: Materials Engineering Standards Committee 01-SAMSS-333 Issue Date: 20 April 2014 Next Planned Update: 20 April 2019 High Frequency Welded Line Pipe Page 5 of 35 4.69 Class IV Service [addition] This class is for gas, two-phase flow, and liquid lines such as NGL, whose vapor pressure exceeds 690 kPa (100 psia). 4.70 Continuous Electronic Process Control (CEPC) …

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  • WELDING OF STAINLESS STEELS AND OTHER ... - Nickel

    In the fabrication of stainless steel products, components, or equipment, manufacturers employ welding as the principal joining method. Stainless steels are weldable materials, and a welded joint can provide optimum corrosion resistance, strength, and fabrication econom y. However, designers should

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