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  • High-frequency induction welding (HFIW) is among the

    2021-5-22u2002·u2002High-frequency induction welding (HFIW) High-frequency induction welding (HFIW): Improvement of the joint quality in the high-frequency induction welding of pipes by edge modification. Abstract High-frequency induction welding (HFIW) is among the most commonly used methods for producing roll-formed pipes. In this paper, weld quality is evaluated through examining the weld …

    Get Price
  • High-Frequency Welding - an overview

    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 increased molecular motion in two similar or dissimilar polymers.

    Get Price
  • Improvement of the joint quality in the high-frequency ...

    2019-7-30u2002·u2002High-frequency induction welding (HFIW) is among the most commonly used methods for producing roll formed pipes. In this paper, weld quality is evaluated through examining the weld properties, in order to obtain the effect of edge preparation on improvement of weld quality. Temperature distribution in the weld zone is studied through the groove shape of the weld joint, and the other …

    Get Price
  • Self Aligned Tank Welding Manipulators With Motorized ...

    High quality Self Aligned Tank Welding Manipulators With Motorized Bogie HGZ20 from China, China's leading pipe welding tools product, with strict quality control pipe welding machine factories, producing high quality pipe welding machine products.

    Get Price
  • High-frequency induction welding (HFIW) is among the

    2021-5-22u2002·u2002High-frequency induction welding (HFIW) High-frequency induction welding (HFIW): Improvement of the joint quality in the high-frequency induction welding of pipes by edge modification. Abstract High-frequency induction welding (HFIW) is among the most commonly used methods for producing roll-formed pipes. In this paper, weld quality is evaluated through examining the weld …

    Get Price
  • High-Frequency Welding - an overview

    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 increased molecular motion in two similar or dissimilar polymers.

    Get Price
  • Improvement of the joint quality in the high-frequency ...

    2019-7-30u2002·u2002High-frequency induction welding (HFIW) is among the most commonly used methods for producing roll formed pipes. In this paper, weld quality is evaluated through examining the weld properties, in order to obtain the effect of edge preparation on improvement of weld quality. Temperature distribution in the weld zone is studied through the groove shape of the weld joint, and the other …

    Get Price
  • Self Aligned Tank Welding Manipulators With Motorized ...

    High quality Self Aligned Tank Welding Manipulators With Motorized Bogie HGZ20 from China, China's leading pipe welding tools product, with strict quality control pipe welding machine factories, producing high quality pipe welding machine products.

    Get Price
  • Welding technologies for polymers and composites - TWI

    High frequency welding. High Frequency (HF) welding, also known as Radio Frequency (RF) welding or Dielectric welding, is a method of joining thin sheets of polar thermoplastic material together. It uses high frequency (13 to 100 MHz) electromagnetic energy to fuse together the materials.

    Get Price
  • Edge Preparation and Alignment for Welding of Pipes »

    2021-9-21u2002·u2002Tags: #piping_engineering #piping_welding #edge_preparation #piping_fabrication Edge Preparation The edges to be welded shall be prepared to meet the joint design requirements by any of the following methods recommended: Carbon Steel : Gas cutting, machining or grinding methods shall be used. After gas cutting, oxides shall be removed by chipping or grinding. Low Alloy Steels (containing …

    Get Price
  • Increasing the Efficiency on ERW/HFI Tube Mills: Part One ...

    The advent of high frequency induction (HFI) techniques has led to significant improvements in weld quality which, in combination with greater control of the raw material chemical composition, has led to the production of high quality line pipe suitable for more stringent applications such as oil and gas pipelines.

    Get Price
  • QR 11-8. HF vs LF ERW Seams – Managing Pipeline Threats

    Haga, H., Aoki, K., and Sato, T., 'Welding Phenomena and Welding Mechanisms in High Frequency Electric Resistance Welding – 1st Report,' presented at the AWS 60th Annual Meeting Detroit, 2-6 April 1979, also in Welding Research Supplement, July 1979, pp 208s – 212s.

    Get Price
  • Pipefitter.com > Tools > Pipe Clamps

    The pipe clamps we carry are for numerous uses. You can fit pipe to fittings, fittings to fittings or pipe to pipe. We have pipe clamps for various sizes. If we don't have it, then we will do what we can to get it for you. Just tell us what you are looking for today.

    Get Price
  • Maintaining and troubleshooting HF welders: A common

    2001-2-19u2002·u2002Since the 1960s, the workhorse of the tube and pipe industry has been the high frequency (HF) vacuum tube welder. Recently, an increasing number of producers have been installing the HF solid-state welder, in part because of its efficiency, compact design, and high power factor.

    Get Price
  • High-Frequency Weld Box - ameinc.com

    High-Frequency Weld Box. Our high-frequency weld boxes have been the industry standard for over 50 years. Tough, dependable, and designed with simplicity in mind, tube and pipe manufactures have turned to Addison Machine for the best in weld boxes.

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  • Boosting efficiency in solid state welders

    2001-9-4u2002·u2002High-frequency welding process is an efficient way to weld tube and pipe at high production rates. This process is heavily affected by two electrical phenomena—skin effect and proximity effect. However, the mechanical aspects that control the presentation of …

    Get Price
  • Welding technologies for polymers and composites - TWI

    High frequency welding. High Frequency (HF) welding, also known as Radio Frequency (RF) welding or Dielectric welding, is a method of joining thin sheets of polar thermoplastic material together. It uses high frequency (13 to 100 MHz) electromagnetic energy to fuse together the materials.

    Get Price
  • Maintaining and troubleshooting HF welders: A common

    2001-2-19u2002·u2002Since the 1960s, the workhorse of the tube and pipe industry has been the high frequency (HF) vacuum tube welder. Recently, an increasing number of producers have been installing the HF solid-state welder, in part because of its efficiency, compact design, and high power factor.

    Get Price
  • General Welding Guidelines - MCAA

    2016-4-5u2002·u2002Alignment shall be done using external alignment clamps or by tack welding the ends. The use of welded lugs or attachments and wedges to bring pipe into alignment is permitted. If the base metal is alloy steel, the preheat required by the WPS shall be used for tack welding and for attachment of alignment materials. Lugs should be removed

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  • Pipe Welding Techniques to Avoid 9 Common Issues

    2020-6-2u2002·u2002Pipe welding basics. Welders often have a lot of questions about welding different kinds of pipe, from high-pressure and high-purity pipe for food and beverage industries to pipe for oil and gas applications. There are many common issues in pipe welding and fabrication that can lead to problems.

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  • Acoustic Induced Vibration (AIV)

    Acoustic Induced Vibration (AIV) refers to structural vibration in a piping system with vapor flow excited by intense acoustic pressure. AIV is caused by acoustic energy from pressure reducing devices with high-pressure drops and vapor services mass flows. High-frequency sound waves can excite the circumferential-mode of vibration of pipe and ...

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  • Assembling Pipes by Butt-Welding: The Different Types of ...

    When butt-welding is required for pipes with walls less than 3mm (.118') thick, beveling the end of the pipe is generally unnecessary. Arc-welding technologies (111, 13x, 141) are capable of penetrating the whole depth of the pipe in a single pass. When an automated welding technique is used (orbital welding or a process using high-density ...

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  • ARC Welding & Safety Supplies

    Welding Consumables. Extensive range of consumables for MIG, TIG, ARC, Plasma, Gas Cutting, and Pipe Cutting. Range of safety equipment, engineering tools, pipe clamps and stands, marking and measuring tools, and pipe purging equipment.

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  • Piping Vibration: Causes and Effects – What Is Piping

    Piping Vibration can be defined as a continuous to and fro motion from an equilibrium position. Piping vibration problems cause serious integrity risks to operating plants; both onshore and offshore production facilities. The vibration of the Piping System can cause fatigue failure on process piping and small branch connections and reliability problems on equipment.

    Get Price
  • High-frequency induction welding (HFIW) is among the

    2021-5-22u2002·u2002High-frequency induction welding (HFIW) High-frequency induction welding (HFIW): Improvement of the joint quality in the high-frequency induction welding of pipes by edge modification. Abstract High-frequency induction welding (HFIW) is among the most commonly used methods for producing roll-formed pipes. In this paper, weld quality is evaluated through …

    Get Price
  • High-Frequency Welding - an overview

    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 increased molecular motion in two similar or dissimilar polymers.

    Get Price
  • Improvement of the joint quality in the high-frequency ...

    2019-7-30u2002·u2002High-frequency induction welding (HFIW) is among the most commonly used methods for producing roll formed pipes. In this paper, weld quality is evaluated through examining the weld properties, in order to obtain the effect of edge preparation on improvement of weld quality. Temperature distribution in the weld zone is studied through the groove shape of the weld joint, …

    Get Price
  • Self Aligned Tank Welding Manipulators With Motorized ...

    High quality Self Aligned Tank Welding Manipulators With Motorized Bogie HGZ20 from China, China's leading pipe welding tools product, with strict quality control pipe welding machine factories, producing high quality pipe welding machine products.

    Get Price
  • Welding technologies for polymers and composites - TWI

    High frequency welding. High Frequency (HF) welding, also known as Radio Frequency (RF) welding or Dielectric welding, is a method of joining thin sheets of polar thermoplastic material together. It uses high frequency (13 to 100 MHz) electromagnetic energy to …

    Get Price
  • Edge Preparation and Alignment for Welding of Pipes »

    2021-9-21u2002·u2002Tags: #piping_engineering #piping_welding #edge_preparation #piping_fabrication Edge Preparation The edges to be welded shall be prepared to meet the joint design requirements by any of the following methods recommended: Carbon Steel : Gas cutting, machining or grinding methods shall be used. After gas cutting, oxides shall be removed by …

    Get Price
  • Increasing the Efficiency on ERW/HFI Tube Mills: Part One ...

    The advent of high frequency induction (HFI) techniques has led to significant improvements in weld quality which, in combination with greater control of the raw material chemical composition, has led to the production of high quality line pipe suitable for more stringent applications such as oil and gas pipelines.

    Get Price
  • QR 11-8. HF vs LF ERW Seams – Managing Pipeline Threats

    Haga, H., Aoki, K., and Sato, T., 'Welding Phenomena and Welding Mechanisms in High Frequency Electric Resistance Welding – 1st Report,' presented at the AWS 60th Annual Meeting Detroit, 2-6 April 1979, also in Welding Research Supplement, July 1979, pp 208s – 212s.

    Get Price
  • Pipefitter.com > Tools > Pipe Clamps

    The pipe clamps we carry are for numerous uses. You can fit pipe to fittings, fittings to fittings or pipe to pipe. We have pipe clamps for various sizes. If we don't have it, then we will do what we can to get it for you. Just tell us what you are looking for today.

    Get Price
  • Maintaining and troubleshooting HF welders: A common

    2001-2-19u2002·u2002Since the 1960s, the workhorse of the tube and pipe industry has been the high frequency (HF) vacuum tube welder. Recently, an increasing number of producers have been installing the HF solid-state welder, in part because of its …

    Get Price
  • High efficiency submerged arc welding - Lincoln EMEAR

    • High deposition rate and high quality welds • Versatile welding process with combination of wire diameter, flux type, single or multiple electrodes, welding current wave shape and welding mode. The submerged arc wire standard portfolio includes different wire sizes, mainly between 2.0 and 4.0 mm wire diameter.

    Get Price
  • Specialised Welding Equipment

    Special Welding Applications and Special Purpose Welders. Many types of machines fall in our specialised welding equipment category, primarily any equipment thats more specialised than regular welding equipment but this list is growing! With Weld Cladding, Pre-heat treament to Welding Lathes, Plasma TIG welders to automated welding solutions ...

    Get Price
  • Butt Welding - an overview

    In Handbook of Plastics Joining (Second Edition), 2009. 30.6.1 Heated Tool Welding. PEX (form: pipe). For butt welding of PE-Xa (peroxide cross-linked) to PE-HD pipes, internal stresses caused during manufacture are released when the pipe ends are heated and this can cause problems for the butt welding of PE-X pipes. The dip of the pipe ends leads to a circular groove at the joint, …

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  • Field Machining - Bolttech Mannings

    Field Machining. Our innovative speed drilling application reduces drill time from 3-8 hours per stud to 10-30 minutes per stud! In the past, machine work was considered a stationary and immobile application. We recognized long ago the substantial savings enabled by the ability to cut, refinish, or mill in-service equipment in the field and ...

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  • Plant Engineering

    2002-4-30u2002·u2002Welding machines in poor repair waste money. Outsourcing provides expert maintenance. Because of their durability and long life, welding machines sometimes don't get routine maintenance. For some companies, a broken welding machine is a minor interference. For those who rely heavily on welding, a broken machine can cause major headaches.

    Get Price
  • Technical Tips Archives - Page 2 of 3 - Climax Portable

    2015-9-22u2002·u2002Technical Tips. Home > Technical Tips (Page 2) HOW TO: BORING PRECISELY ALIGNED HOLES. Maximizing alignment and precision can be very difficult when boring holes that are far apart. You could use an extra-long boring bar, but you would need to compensate for deflection (sag) over the unsupported span. The greater the span, the more sag in the bar.

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  • Welding Clamp for sale

    Total Ratings 3, $109.99 New. Magswitch 300 Amp Magnetic Welding Ground Clamp 8100746. 4.9 out of 5 stars. (20) Total Ratings 20, $43.00 New. Capri Tools R00416 Locking Welding Clamp Set 3-piece. 5 out of 5 stars.

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  • Guided Wave Ultrasonic Testing for Non-piggable Pipelines

    2019-6-23u2002·u2002Guided Wave Ultrasonic Testing for Non-piggable Pipelines. Guided wave ultrasonic testing (GWUT) is a viable alternative for non-piggable pipelines that are located in hard-to-reach areas where launching and receiving the pig is difficult. Pipelines have been used as a safe and cost effective method of hydrocarbon transportation since 1860.

    Get Price
  • Pipe Inspection,Testing & Marking Requirements to Ensure ...

    2021-8-29u2002·u2002Pipe Inspection is a continuous process during manufacturing. Different types of inspection and testing are performed on a pipe to ensure the quality of the pipes. Refer to the list given below for the types of inspection performed on a pipe.

    Get Price
  • 7 Most Common Welding Defects, Causes and Remedies ...

    Defects are common in any type of manufacturing, welding including. In the process, there can be deviations in the shape and size of the metal structure. It can be caused by the use of the incorrect welding process or wrong welding technique. So below we'll learn about the 7 most common welding defects, their types, causes and remedies.

    Get Price
  • High efficiency submerged arc welding - Lincoln EMEAR

    • High deposition rate and high quality welds • Versatile welding process with combination of wire diameter, flux type, single or multiple electrodes, welding current wave shape and welding mode. The submerged arc wire standard portfolio includes different wire …

    Get Price
  • Horizontal welding machine, Horizontal welding system ...

    FUSION 4H is a fully digital horizontal CNC welding machining machine for welding PVC profiles. Coming in 2 sizes, the 4-head model allows fabricating frames through ... Compare this product Remove from comparison tool. hot plate welding machine HV-15. AC automatic compact.

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  • PRUFTECHNIK

    2021-9-22u2002·u2002Align machine shafts with new levels of speed and precision using adaptive alignment tools. ... The Fluke 3563 Analysis Vibration Sensor combines a high-frequency piezoelectric sensor and analytics, enabling maintenance teams to continuously monitor and analyze vibration readings for a facility's production-critical assets. ... Find out how the ...

    Get Price
  • Specialised Welding Equipment

    Special Welding Applications and Special Purpose Welders. Many types of machines fall in our specialised welding equipment category, primarily any equipment thats more specialised than regular welding equipment but this list is growing! With Weld Cladding, Pre-heat treament to Welding Lathes, Plasma TIG welders to automated welding solutions ...

    Get Price
  • National Welding and Industrial Supplies - Welder Repair ...

    Most welding processes also use Welding Gas. At National Welding and Industrial Supplies, we sell Gas outright so that you own the bottle and can keep it for however long you like. Small 1 or 2.2 L disposables bottles are also available. Our Gas range includes Pure Argon, Argon co2, Argon o2, co2, Helium, Nitrogen and Oxygen.

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  • Production Process Improvements in Large-Scale Pipe

    2017-3-17u2002·u2002to the pipe. 0.1 Bend the pipe by the high frequency bending machine according to the designed bending radius and angle. 0.5 4 Dimensional inspection, scribing cutting position Measure the bending angle, straight part length, interface length using the drawings and measurement tools and mark the cutting position so

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  • A-Z of Welding Terms - Welding Glossary

    2013-11-19u2002·u2002High Frequency – (as applied to gas-tungsten arc welding) An alternating current consisting of over 50,000 cycles per second at high voltage, low amperage that is superimposed on the welding circuit in GTAW power sources. It ionizes a path for non-touch arc starting and stabilizes the arc when welding with alternating current.

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  • Poland Manufacturer producer welding

    Manufacturer/producer (81) By Country. Poland (51) Bialystok and the region of Podlasie (1) Gdansk and the region of Pomerania (9) Gorzow Wielkopolski and the region of Lubusz (2) Kielce and the Holy Cross region (2) Krakow and the region of Little Poland (7) Lodz and region (3)

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  • Pipe Inspection,Testing & Marking Requirements to Ensure ...

    2021-8-29u2002·u2002Pipe Inspection is a continuous process during manufacturing. Different types of inspection and testing are performed on a pipe to ensure the quality of the pipes. Refer to the list given below for the types of inspection performed on a pipe.

    Get Price
  • 7 Most Common Welding Defects, Causes and Remedies ...

    Defects are common in any type of manufacturing, welding including. In the process, there can be deviations in the shape and size of the metal structure. It can be caused by the use of the incorrect welding process or wrong welding technique. So below we'll learn about the 7 most common welding defects, their types, causes and remedies.

    Get Price