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  • Horizontal fixed welding method of stainless steel pipe

    2017-9-21u2002·u2002Horizontal fixed welding method of stainless steel pipe . 1. Welding analysis: 1. Cr18Ni9Ti stainless steel Ф 159mm × 12mm large pipe horizontal fixed butt joints are mainly used in nuclear power equipment and certain chemical equipment that require heat and acid resistance. The welding is difficult and requires high welding joints.

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  • big diameter steel pipe,steel tubular piles,boiler tubing ...

    2020-9-21u2002·u2002Tubular Piles Spiral-seam Welded Steel Pipe, SSAW(Outer Diameter 219 - 3040mm, Wall Thick 5-25mm) Spiral-seam Welded Steel Pipe, SSAW(Outer Diameter 219 - 3040mm, Wall Thick 5-25mm) Line Steel Pipe Longitudinal Submerged-Arc Weld Pipe ( ASTM A252 GR 3, 508*20*19500mm) High Frequncey Weld Pipe ( API 5L GR B, black paint, 273.1x7 ...

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  • Metal Pipe - Seamless Pipe - ERW Pipe - Galvanized Pipe ...

    Welded pipe does NOT have a weld seam inside or outside. Welded pipe is produced by electric resistance welding and the seam has been taken out during manufacturing process; Pipe sizes smaller than 2' are available in continuous weld pipe, also know as A53 grade A. Stainless Steel pipe is available in both welded and seamless configuration and ...

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  • Main Equipment of High Frequency Welded Pipe

    2021-7-5u2002·u2002Main equipment of high frequency straight seam welded pipe (ERW welded pipe) production line: 1. Uncoiler. The hot-rolled steel strip is disassembled and sent to the strip leveling machine. There are two types of unwinding: upper unwinding and lower unwinding. The decoiler is the front-end equipment of the high-frequency welded pipe production ...

    Get Price
  • 5 Types Of Welding Seams

    Fillet Welded Seams are the most common type of welding joint and accounts for nearly 75% of joints made with arc welding. You do not need to prepare the edge and this type of joint make it easy to weld piping systems. Butt welds are more expensive than fillet welds. Fillet welds are mostly used in piping systems to join pipe to socket joints.

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  • How to grind, blend and finish a weld seam

    2019-3-19u2002·u2002The process uses an inert shielding gas and a semi-automatic wire feed, which acts as the filling material. Generally considered to be the best option for heavier or thicker items but will produce a fat weld seam. We would suggest MIG welding on carbon steel. TIG (Tungsten Inert Gas) welding. Can be referred to Gas Tungsten Arc Welding (GTAW).

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  • Seam Pipe, Manufacturers, Products, Machinery, Suppliers ...

    2021-8-3u2002·u2002Results for Seam Pipe : 66 Companies. 1. wire meshes welding machine, welded wire mesh equipment, steel grating welding machine, flash butt welding machines, multiple spot welders, condenser spot welding machinery, air pressure seam welding machines, resistance & foot spot welding machi. 2.

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  • Welding of Large Diameter Pipelines: Design, Processes ...

    2018-5-10u2002·u2002• Weld After Backfill is a sequence used to improve overall installation rate for steel pipe. • Pipe is laid and welded outside (if required). • Joint coating is applied, usually a shrink sleeve or mortar diaper. • Pipe is backfilled. • The inside weld is made later.

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  • Main Equipment of High Frequency Welded Pipe

    2021-7-5u2002·u2002Main equipment of high frequency straight seam welded pipe (ERW welded pipe) production line: 1. Uncoiler. The hot-rolled steel strip is disassembled and sent to the strip leveling machine. There are two types of unwinding: upper unwinding and lower unwinding. The decoiler is the front-end equipment of the high-frequency welded pipe production ...

    Get Price
  • Seamless steel pipe

    Hydrostatic test methods and procedures for longitudinal welded pipes Large diameter LSAW steel pipe hydraulic pressure test machine pressure test, the first seal through the test straight seam steel pipe in the exhaust pipe through the exhaust valve filling the two ends of the filling process and low pressure water seal, water After the full ...

    Get Price
  • Welding Process to Reduce Welding Distortion

    2021-3-23u2002·u20022. Intermittent weld Another way to reduce the fill of welds is to use more discontinuous welding, such as welding reinforcement plates. Intermittent welding can reduce the fill of welds by 75% and ensure the required strength. 3. Reduce the weld bead. Welding with thick wire and few beads has less deformation than thin wire and multi-bead welding.

    Get Price
  • Weld Repair of 310S Stainless Steel Pipe Crack

    2017-7-7u2002·u2002310S is a heat-resistant stainless steel, with good oxidation resistance, corrosion resistance, widely used in ion-exchange membrane electrolysis of the alkaline pipeline. As the material process requirements are high, once the base metal and filler material alloying elements are not complete, improper welding process, working condition is not good, pipe corrosion, work stress and other ...

    Get Price
  • Deburring welded pipe - Lumco Manufacturing Company

    manufacture of hot seam welded steel pipe: jp05253732: october, 1993: electro-resistance-welded tube inner surface bead cutting device: jp06134613: may, 1994: removing method for inside bead of welded steel pipe and device therefor: jp09103910: april, 1997: inner bead trimmer of electric resistance welded tube: jp10337609: december, 1998

    Get Price
  • Four welding methods for stainless steel pipes-Boiler ...

    2021-8-20u2002·u2002Four welding methods for stainless steel pipes The welding of stainless steel pipes usually consists of bottom welding, filling welding and cover welding. Bottom welding is the most critical part of stainless steel pipe welding. It is not only related to the quality …

    Get Price
  • Seam Pipe, Manufacturers, Products, Machinery, Suppliers ...

    2021-8-3u2002·u2002Results for Seam Pipe : 66 Companies. 1. wire meshes welding machine, welded wire mesh equipment, steel grating welding machine, flash butt welding machines, multiple spot welders, condenser spot welding machinery, air pressure seam welding machines, resistance & foot spot welding machi. 2.

    Get Price
  • Finite element modelling of concrete-filled spiral-welded ...

    2021-4-1u2002·u2002Spiral welded tubes (SWTs) are fabricated by helically bending a continuous length of steel plate and welding the resulting spiral-shaped abutting edges. SWTs offer a cost-effective alternative to conventional longitudinally seam-welded tubes (LSWTs),, . Hence, cost-benefits can result when SWTs are used for concrete-filled steel tube (CFST ...

    Get Price
  • Welding tool steel - The Fabricator

    2019-1-17u2002·u2002In general, gas tungsten arc welding (GTAW) is the best process to use on tool steel based on its amperage and control over feeding and aim. Gas metal arc welding is a better choice for fast filling and joining large pieces. If welding is the only choice, then you need to analyze the insert to find the best way to hold it during welding.

    Get Price
  • Pipe body, pipe and method of making pipe - Zhejiang ...

    A pipe body, wherein the pipe body (10) has a welded portion (11) at both ends of the pipe body, aligned in a widthwise direction of the pipe body (10).The thickness of the welded portion (11) decreases gradually from the inside to the outside of the pipe, and an outer end of the welded portion (11) is located at a center portion of the pipe body (10) in a thickness direction.

    Get Price
  • Main Equipment of High Frequency Welded Pipe Production Line

    2021-7-5u2002·u2002Main equipment of high frequency straight seam welded pipe (ERW welded pipe) production line: 1. Uncoiler. The hot-rolled steel strip is disassembled and sent to the strip leveling machine. There are two types of unwinding: upper unwinding and lower unwinding. The decoiler is the front-end equipment of the high-frequency welded pipe production ...

    Get Price
  • Seamless steel pipe

    Hydrostatic test methods and procedures for longitudinal welded pipes Large diameter LSAW steel pipe hydraulic pressure test machine pressure test, the first seal through the test straight seam steel pipe in the exhaust pipe through the exhaust valve filling the two ends of the filling process and low pressure water seal, water After the full ...

    Get Price
  • Welding Process to Reduce Welding Distortion

    2021-3-23u2002·u20022. Intermittent weld Another way to reduce the fill of welds is to use more discontinuous welding, such as welding reinforcement plates. Intermittent welding can reduce the fill of welds by 75% and ensure the required strength. 3. Reduce the weld bead. Welding with thick wire and few beads has less deformation than thin wire and multi-bead welding.

    Get Price
  • Weld Repair of 310S Stainless Steel Pipe Crack

    2017-7-7u2002·u2002310S is a heat-resistant stainless steel, with good oxidation resistance, corrosion resistance, widely used in ion-exchange membrane electrolysis of the alkaline pipeline. As the material process requirements are high, once the base metal and filler material alloying elements are not complete, improper welding process, working condition is not good, pipe corrosion, work …

    Get Price
  • Deburring welded pipe - Lumco Manufacturing Company

    manufacture of hot seam welded steel pipe: jp05253732: october, 1993: electro-resistance-welded tube inner surface bead cutting device: jp06134613: may, 1994: removing method for inside bead of welded steel pipe and device therefor: jp09103910: april, 1997: inner bead trimmer of electric resistance welded tube: jp10337609: december, 1998

    Get Price
  • Four welding methods for stainless steel pipes-Boiler ...

    2021-8-20u2002·u2002Four welding methods for stainless steel pipes The welding of stainless steel pipes usually consists of bottom welding, filling welding and cover welding. Bottom welding is the most critical part of stainless steel pipe welding. It is not only related to the quality of the project, but also to the progress of the project.

    Get Price
  • Seam Pipe, Manufacturers, Products, Machinery, Suppliers ...

    2021-8-3u2002·u2002Results for Seam Pipe : 66 Companies. 1. wire meshes welding machine, welded wire mesh equipment, steel grating welding machine, flash butt welding machines, multiple spot welders, condenser spot welding machinery, air pressure seam welding machines, resistance & foot spot welding machi. 2.

    Get Price
  • Finite element modelling of concrete-filled spiral-welded ...

    2021-4-1u2002·u2002Spiral welded tubes (SWTs) are fabricated by helically bending a continuous length of steel plate and welding the resulting spiral-shaped abutting edges. SWTs offer a cost-effective alternative to conventional longitudinally seam-welded tubes (LSWTs),, . Hence, cost-benefits can result when SWTs are used for concrete-filled steel tube (CFST ...

    Get Price
  • Welding tool steel - The Fabricator

    2019-1-17u2002·u2002In general, gas tungsten arc welding (GTAW) is the best process to use on tool steel based on its amperage and control over feeding and aim. Gas metal arc welding is a better choice for fast filling and joining large pieces. If welding is the only choice, then you need to analyze the insert to find the best way to hold it during welding.

    Get Price
  • Pipe body, pipe and method of making pipe - Zhejiang ...

    A pipe body, wherein the pipe body (10) has a welded portion (11) at both ends of the pipe body, aligned in a widthwise direction of the pipe body (10).The thickness of the welded portion (11) decreases gradually from the inside to the outside of the pipe, and an outer end of the welded portion (11) is located at a center portion of the pipe body (10) in a thickness direction.

    Get Price
  • Metal Pipe - Seamless Pipe - ERW Pipe - Galvanized Pipe ...

    Welded pipe does NOT have a weld seam inside or outside. Welded pipe is produced by electric resistance welding and the seam has been taken out during manufacturing process; Pipe sizes smaller than 2' are available in continuous weld pipe, also know …

    Get Price
  • Static flexural behaviour of concrete-filled spiral-welded ...

    2020-6-1u2002·u2002The cost-effectiveness of such concrete-filled stainless-steel tube (CFSST) structural elements can be further increased by using spiral-welding for the fabrication of the steel tubes, rather than conventional longitudinal seam welding. Spiral-welded tubes (SWTs), which are fabricated by helically bending a continuous length of steel plate and ...

    Get Price
  • Erw pipe and electric Welded profiles: buy from Metinvest ...

    Welded spiral pipe manufacturing. Steel coils are used to make spiral pipes. Manufacturing pipes up to 2,520 mm in diameter using feedstock of a similar width by resetting a line is a key advantage of this technology. A spiral welding process results in pipes with a …

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  • Types and process of welding pipe-ERW,LW,CW,SAW

    Spiral submerged arc welding (SSAW) steel pipe,also called HSAW pipe,welding line shape like a helix.It is using the same welding technology of Submerged Arc-Welding with LSAW pipe.Differently SSAW pipe is spiral welded where the LSAW is longitudinally welded.Manufacturing process is rolling the steel strip,to make the rolling direction have an angle with the direction of the pipe center ...

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  • Services. Stainless steel, aluminium and mild steel ...

    2019-2-24u2002·u2002We are specialists in critical-hygiene and food process area welding and engineering. Our reputation for high-quality process pipe work and tube welding is stainless. We are certified TIG welders to both AS/NZS2980 and ASME IV standards. We specialise in fabrication of …

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  • Cylinder circumferential seam welding machine

    If the size of the workpiece is short (less than 500), the workpiece can be welded at an angle of 45 degrees. For internal fillet welds, the side of the clamped steel pipe is welded horizontally. The use and application equipment: Job-status: workpiece welding surface is …

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  • Method for longitudinally seam-welding pipe-bland for ...

    In longitudinally seam-welding a pipe-blank for welded steel pipe from the inside along a groove by the metal arc welding process which comprises using direct electric current supplied to a plurality of consumable electrodes in tandem through at least one current supply cable as the welding current, an even number of consumable electrodes are used; half of said even-numbered consumable ...

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  • Cangzhou Shenlong Pipe Manufacturing Co., Ltd - steel

    Cangzhou Shenlong Pipe Manufacturing Co., Ltd. is a company specialized in the production, processing and sales of various steel pipes and pipe fittings enterprise, the production base is located in Cangzhou in Hebei. Founded in 1992, covering more than 60,000 square meters, more than 200 employees (including 30 inspectors), annual output of ...

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  • Orbital Closed Head TC156 and Classic Tube to Tube Sheet ...

    2019-3-28u2002·u2002The main stainless steel 316 pipeline has many welding joints. The quality of the non-wired autogenous welding seam of the pipe to pipe, pipe to elbow and pipe to flange is extremely high, and the weld formation appearance also has a strict requirement. In addition, the diameter of the pipe varies from 2 inches to 6 inches.

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  • US20080115863A1 - Method for improving the

    The present invention provides a method for heat-treating seam-welded constructions of hardenable steel and ferrous alloys with reduced weld-zone hardness and improved weld-zone ductility and toughness. This method consists of heating the seam weld rapidly with a secondary heat source to a temperature greater than the martensitic start temperature but not greater than the lower critical ...

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  • Main Equipment of High Frequency Welded Pipe

    2021-7-5u2002·u2002Main equipment of high frequency straight seam welded pipe (ERW welded pipe) production line: 1. Uncoiler. The hot-rolled steel strip is disassembled and sent to the strip leveling machine. There are two types of unwinding: upper unwinding and lower unwinding. The decoiler is the front-end equipment of the high-frequency welded pipe production ...

    Get Price
  • Seamless steel pipe

    Hydrostatic test methods and procedures for longitudinal welded pipes Large diameter LSAW steel pipe hydraulic pressure test machine pressure test, the first seal through the test straight seam steel pipe in the exhaust pipe through the exhaust valve filling the two ends of the filling process and low pressure water seal, water After the full ...

    Get Price
  • Welding Process to Reduce Welding Distortion

    2021-3-23u2002·u20022. Intermittent weld Another way to reduce the fill of welds is to use more discontinuous welding, such as welding reinforcement plates. Intermittent welding can reduce the fill of welds by 75% and ensure the required strength. 3. Reduce the weld bead. Welding with thick wire and few beads has less deformation than thin wire and multi-bead welding.

    Get Price
  • Weld Repair of 310S Stainless Steel Pipe Crack

    2017-7-7u2002·u2002310S is a heat-resistant stainless steel, with good oxidation resistance, corrosion resistance, widely used in ion-exchange membrane electrolysis of the alkaline pipeline. As the material process requirements are high, once the base metal and filler material alloying elements are not complete, improper welding process, working condition is not good, pipe corrosion, work stress and other ...

    Get Price
  • Deburring welded pipe - Lumco Manufacturing Company

    manufacture of hot seam welded steel pipe: jp05253732: october, 1993: electro-resistance-welded tube inner surface bead cutting device: jp06134613: may, 1994: removing method for inside bead of welded steel pipe and device therefor: jp09103910: april, 1997: inner bead trimmer of electric resistance welded tube: jp10337609: december, 1998

    Get Price
  • Four welding methods for stainless steel pipes-Boiler ...

    2021-8-20u2002·u2002Four welding methods for stainless steel pipes The welding of stainless steel pipes usually consists of bottom welding, filling welding and cover welding. Bottom welding is the most critical part of stainless steel pipe welding. It is not only related to the quality …

    Get Price
  • Seam Pipe, Manufacturers, Products, Machinery, Suppliers ...

    2021-8-3u2002·u2002Results for Seam Pipe : 66 Companies. 1. wire meshes welding machine, welded wire mesh equipment, steel grating welding machine, flash butt welding machines, multiple spot welders, condenser spot welding machinery, air pressure seam welding machines, resistance & foot spot welding machi. 2.

    Get Price
  • Finite element modelling of concrete-filled spiral-welded ...

    2021-4-1u2002·u2002Spiral welded tubes (SWTs) are fabricated by helically bending a continuous length of steel plate and welding the resulting spiral-shaped abutting edges. SWTs offer a cost-effective alternative to conventional longitudinally seam-welded tubes (LSWTs),, . Hence, cost-benefits can result when SWTs are used for concrete-filled steel tube (CFST ...

    Get Price
  • Welding tool steel - The Fabricator

    2019-1-17u2002·u2002In general, gas tungsten arc welding (GTAW) is the best process to use on tool steel based on its amperage and control over feeding and aim. Gas metal arc welding is a better choice for fast filling and joining large pieces. If welding is the only choice, then you need to analyze the insert to find the best way to hold it during welding.

    Get Price
  • Pipe body, pipe and method of making pipe - Zhejiang ...

    A pipe body, wherein the pipe body (10) has a welded portion (11) at both ends of the pipe body, aligned in a widthwise direction of the pipe body (10).The thickness of the welded portion (11) decreases gradually from the inside to the outside of the pipe, and an outer end of the welded portion (11) is located at a center portion of the pipe body (10) in a thickness direction.

    Get Price
  • Main Equipment of High Frequency Welded Pipe

    2021-7-5u2002·u2002Main equipment of high frequency straight seam welded pipe (ERW welded pipe) production line: 1. Uncoiler. The hot-rolled steel strip is disassembled and sent to the strip leveling machine. There are two types of unwinding: upper unwinding and lower unwinding. The decoiler is the front-end equipment of the high-frequency welded pipe production ...

    Get Price
  • Seamless steel pipe

    Hydrostatic test methods and procedures for longitudinal welded pipes Large diameter LSAW steel pipe hydraulic pressure test machine pressure test, the first seal through the test straight seam steel pipe in the exhaust pipe through the exhaust valve filling the two ends of the filling process and low pressure water seal, water After the full ...

    Get Price
  • Welding Process to Reduce Welding Distortion

    2021-3-23u2002·u20022. Intermittent weld Another way to reduce the fill of welds is to use more discontinuous welding, such as welding reinforcement plates. Intermittent welding can reduce the fill of welds by 75% and ensure the required strength. 3. Reduce the weld bead. Welding with thick wire and few beads has less deformation than thin wire and multi-bead welding.

    Get Price
  • Weld Repair of 310S Stainless Steel Pipe Crack

    2017-7-7u2002·u2002310S is a heat-resistant stainless steel, with good oxidation resistance, corrosion resistance, widely used in ion-exchange membrane electrolysis of the alkaline pipeline. As the material process requirements are high, once the base metal and filler material alloying elements are not complete, improper welding process, working condition is not good, pipe corrosion, work stress and other ...

    Get Price
  • Deburring welded pipe - Lumco Manufacturing Company

    manufacture of hot seam welded steel pipe: jp05253732: october, 1993: electro-resistance-welded tube inner surface bead cutting device: jp06134613: may, 1994: removing method for inside bead of welded steel pipe and device therefor: jp09103910: april, 1997: inner bead trimmer of electric resistance welded tube: jp10337609: december, 1998

    Get Price
  • Four welding methods for stainless steel pipes-Boiler ...

    2021-8-20u2002·u2002Four welding methods for stainless steel pipes The welding of stainless steel pipes usually consists of bottom welding, filling welding and cover welding. Bottom welding is the most critical part of stainless steel pipe welding. It is not only related to the quality …

    Get Price
  • Seam Pipe, Manufacturers, Products, Machinery, Suppliers ...

    2021-8-3u2002·u2002Results for Seam Pipe : 66 Companies. 1. wire meshes welding machine, welded wire mesh equipment, steel grating welding machine, flash butt welding machines, multiple spot welders, condenser spot welding machinery, air pressure seam welding machines, resistance & foot spot welding machi. 2.

    Get Price
  • Finite element modelling of concrete-filled spiral-welded ...

    2021-4-1u2002·u2002Spiral welded tubes (SWTs) are fabricated by helically bending a continuous length of steel plate and welding the resulting spiral-shaped abutting edges. SWTs offer a cost-effective alternative to conventional longitudinally seam-welded tubes (LSWTs),, . Hence, cost-benefits can result when SWTs are used for concrete-filled steel tube (CFST ...

    Get Price
  • Welding tool steel - The Fabricator

    2019-1-17u2002·u2002In general, gas tungsten arc welding (GTAW) is the best process to use on tool steel based on its amperage and control over feeding and aim. Gas metal arc welding is a better choice for fast filling and joining large pieces. If welding is the only choice, then you need to analyze the insert to find the best way to hold it during welding.

    Get Price
  • Pipe body, pipe and method of making pipe - Zhejiang ...

    A pipe body, wherein the pipe body (10) has a welded portion (11) at both ends of the pipe body, aligned in a widthwise direction of the pipe body (10).The thickness of the welded portion (11) decreases gradually from the inside to the outside of the pipe, and an outer end of the welded portion (11) is located at a center portion of the pipe body (10) in a thickness direction.

    Get Price