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Weld quality failure caused by used welded pipe machines (4)2022-12-26 -
Weld quality failure caused by used welded pipe machines2022-12-23
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Weld quality failure caused by used welded pipe machines (2)2022-12-20
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Weld quality failure caused by used welded pipe machine (1)2022-12-17
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Key points and reasons for solving welding quality of used welded pipe machine2022-12-14
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Key points of welding quality of used welded pipe machine (4)2022-12-11
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Key points of welding quality of used welded pipe machine (3)2022-12-08
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Key points of welding quality of used welded pipe machine (2)2022-12-05
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Key points of welding quality of used welded pipe machine (1)2022-12-02
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Welding Technology of Thin Wall Welded Pipe Produced by Used Φ76 welded pipe units2022-11-29
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Forming technology of thin wall welded pipe produced by used Φ76 welded pipe units2022-11-26
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Effect of annealing temperature on mechanical properties of welded pipe in high frequency welded pipe equipment2022-11-23
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Factors affecting online bright heat treatment of stainless steel welded pipe made by galvanized pipe making machines(3)2022-11-20
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Factors affecting the online bright heat treatment of stainless steel welded pipes made by high frequency welded pipe machine2022-11-17
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Factors affecting online bright heat treatment of stainless steel welded pipe made by directly forming to square pipe mill (1)2022-11-14
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Influence of heat affected zone control technology on welding quality of high frequency welded pipe equipment2022-11-11
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Key technology of precision welded pipe production by used welded pipe machine—Equipment requirements for butt welded pipe unit2022-11-08
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Key Technology of Precision Welded Pipe Production by used welded pipe machine—Non-destructive testing2022-11-05
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Key technology of precision welded pipe production by used welded pipe machine—Weld heat treatment2022-11-02
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Key Technology of Precision Welded Pipe Production by used welded pipe machine—formation and elimination of weld burrs2022-10-30
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The key technology of precision welded pipe production by used welded pipe machine—Welded pipe forming process2022-10-27
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Key technology of precision welded pipe production by used welded pipe machine—the quality requirements of raw materials2022-10-24
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Used welded pipe machine welded pipe production process specification—Packaging logo printing process2022-10-21
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Used welded pipe machine welded pipe production process specification—Water pressure testing process2022-10-18
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Used welded pipe machine welded pipe production process specification—shear butt welding process2022-10-09
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Used welded pipe machine welded pipe production process specification—pre-preparation and feeding process2022-10-06
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Used welded pipe machine welded pipe production process specification—slitting process2022-10-03
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The method of adjusting the concave surface when the galvanized pipe machine manufactures the square tube2022-09-30
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How to adjust the directly forming to square pipe mill when the welded pipe is fully convex on all sides2022-09-27
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The reason why the square and rectangular tubes produced by the directly forming to square pipe mill are all convex on all sides2022-09-24
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How to adjust the opening angle of used welded pipe machine2022-09-21
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Factors affecting the opening angle of used welded pipe equipment2022-09-18
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High frequency welded pipe machine on the impact of welded tube blank defects on the quality of welded tube (1)2022-09-15
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Types of internal burrs that appear when used roll forming machine are welded and machine-made2022-09-12
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Introduction of welding heat affected zone of used roll forming machine2022-09-09
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Main performance of springback during welding of used ERW pipe tube mills2022-09-06
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The method of overcoming the springback when the welded pipe of the used welded pipe machine is formed2022-09-03
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Solutions to Difficulties in Thick-walled Pipe Forming of directly forming to square pipe mill(3)2022-08-31
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Solutions to difficulties in thick-walled pipe forming of directly forming to square pipe mill (2)2022-08-28
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Solutions to difficulties in thick-walled pipe forming of directly forming to square pipe mill (1)2022-08-25
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Solutions to Difficulties in Forming Thick-walled Pipes of used roll forming machine (2)2022-08-22
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Learn about the solutions for thick-wall pipe forming of directly forming to square pipe mill(1)2022-08-19
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Analyzing the roll life of a used ERW tube mill2022-08-16
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How to extend the service life of high frequency welded pipe equipment2022-08-13
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Adjusting the welding seam position of square and rectangular pipes made by used square tube machines (2)2022-08-10
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Welding and rolling bottom line and sizing rolling bottom line in high frequency welded pipe machine2022-08-07
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The method of detecting the square of the square tube made by the used square tube machines2022-08-04
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How to adjust the welding process parameters of high frequency welded pipe machine(2)2022-08-01
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The method of directly forming to square pipe mill to adjust the r angle of the square tube2022-07-29
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Common surface defects of welded pipes in used welded pipe machine manufacturing - pipe surface scars2022-07-26
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The scheme of placing the impedance in the high frequency welded pipe equipment2022-07-23
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Welded pipe blank width consumption for pipe making by used welded pipe machine2022-07-20
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How to observe the welding heat of used welded pipe equipment2022-07-16
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Factors affecting the opening angle of the used roll forming machine and the adjustment principle2022-07-13
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Causes and solutions of tube size defects of used welded pipe machine2022-07-10
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Requirements for on-line cutting of welded pipes for high frequency welded pipe equipment2022-07-07
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Prerequisites for Straightening Welded Pipes by high frequency welded pipe equipment2022-07-04
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Common used welded pipe machine sizing section welded pipe quality defects2022-07-01
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Thin wall tube forming with used roll forming machine2022-05-21
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Adjustment in the feeding process of used welded pipe machine2022-05-18
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Adjust the basic work of forming in roll forming equipment2022-05-15
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Welding heat cycle of high frequency welded pipe equipment2022-05-12
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Squeeze roll hole pattern and upper pressure of steel slitting machine2022-05-09
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Welding process characteristics of high frequency welded pipe equipment2022-05-06
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Analysis of the structure of the induction coil of the pipe welder machine2022-05-03
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Efficiency optimization of welding process of high frequency welded pipe production line（2）2022-04-30
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Efficiency optimization of welding process of high frequency welded pipe production line（1）2022-04-27
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Defects caused by improper removal of internal burrs on cold roll forming machine2022-04-24
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Analysis of the factors affecting the pipe making process of high frequency welded pipe equipment (4)2022-04-21
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Analysis of factors affecting the pipe making process of high frequency welded pipe equipment (3)2022-04-18
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Analysis of the factors affecting the pipe making process of high frequency welded pipe equipment (2)2022-04-15
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Analysis of the factors affecting the pipe making process of high frequency welded pipe equipment(1)2022-04-12
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Damage forms and countermeasures of rolls in used welded pipe mills2022-04-09
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Introduction to the welding process of high frequency welded pipe machine2022-04-06
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Common problems and solutions for burr removal in high frequency welded pipe equipment (4)2022-04-03
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Common problems and solutions for burr removal in roll forming equipment (3)2022-03-31
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Common problems and solutions for burr removal in roll forming equipment (2)2022-03-28
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Common problems and solutions for burr removal in roll forming equipment (1)2022-03-25
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Types of burr removal tool bars in used high-frequency welded pipe equipments2022-03-22
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The reasons for the formation of burrs in the used HFW pipe units2022-03-19
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What is the common accumulation of burrs in welded pipes produced by used HFW pipe equipment?2022-03-16
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Which parameters are called the key parameters of high-frequency welding in used HFW pipe units?2022-03-13
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Welded pipe straightening method of used welded pipe units2022-03-10
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Common faults of used welded pipe units2022-03-07
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Common faults of used welded pipe mills production line forming machines (5)2022-03-04
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Common faults of used welded pipe mills production line forming machines (4)2022-03-01
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Common faults of used welded pipe mills production line forming machines (3)2022-02-26
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Common faults of used welded pipe mills production line forming machines (2)2022-02-23
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Common faults of used welded pipe mills production line forming machines (1)2022-02-16
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Adjustment of used high-frequency welded pipe units2022-02-06
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Used ERW tube mills, how to adjust the squeeze roll "Two Top Rollers, Two Side Vertical Rollers and One Bottom Roller"2022-02-03
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Used ERW tube mills, how to adjust the squeeze roll "Two top rolls and two side vertical rolls"2022-01-31
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Used ERW tube mills, how to adjust the squeeze roll "up one next two"2022-01-28
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Used ERW tube mills, how to adjust the squeeze roll "up two next one"2022-01-25
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Used ERW tube mills, how to adjust the squeeze roll "two on one side"2022-01-22
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Used high frequency tube mills to prevent pipe welding seam cracking (2)2022-01-19
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Used high frequency tube mills to prevent pipe welding seam cracking (1)2022-01-16
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Directly forming to square tube mills, heat treatment of pipe making (2)2022-01-13
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Used ERW tube mills, common problems and common solutions for burr removal in welded pipes2022-01-07
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Used ERW tube mills, common method for removing burrs in welded pipe2022-01-04
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Used ERW tube mills, formation and removal of burrs in welded pipes2022-01-01
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Used EWR tube mills, the influence of operations on welding quality in the production of welded pipes (2)2021-12-20
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Used EWR tube mills, the influence of operations on welding quality in the production of welded pipes (1)2021-12-17
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Used HFW tube mills, the characteristics and advantages and disadvantages of the two welding methods2021-12-14
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Used square pipe machines, adjust the welding seam position of making square rectangular pipe (2)2021-12-11
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Used square pipe machines, adjust the welding seam position of making square rectangular pipe (1)2021-12-08
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The method of adjusting the used square tube machines to improve the irregular square tube2021-12-05
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Used square pipe machines, the method of inspecting and manufacturing square rectangular tube2021-12-02
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Used HFW tube mills, realizing the overall heating treatment method of pipe-making and welded pipe2021-11-29
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Used high-frequency tube mills, realizing online heat treatment method of pipe welding seam2021-11-26
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Used HFW tube mills to achieve seamless welded pipe2021-11-23
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Used HFW pipe mills, the correct choice of induction coil2021-11-20
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Used welded pipe mills, factors affecting the opening angle of the pipe2021-11-17
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Used high frequency tube mills on the impact of welded tube blank defects on the quality of welded tube (1)2021-11-14
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Used high frequency tube mills, common problems of high-frequency welding (6)——high-frequency ignition2021-11-11
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Used high frequency tube mills, common problems of high-frequency welding (5)——steel pipe indentation and pits2021-11-08
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Used high frequency tube mills, common problems of high-frequency welding (4)——Causes of the torsion of the weld2021-11-05
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Used high-frequency tube mills, common problems of high-frequency welding (3)——According to the shape of the wrong edge and the method of adjustment2021-11-02
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Used high frequency tube mills, common problems of high-frequency welding (2)——How to judge the edge shape of strip steel2021-10-29
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Used high frequency tube mills, common problems of high-frequency welding (1)--external burr shape2021-10-26
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Used welded tube mills,what kind of transportation and maintenance support is provided for ?2021-10-23
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Used welded pipe production line, the cause of the nozzle defect after the flying saw is disconnected?2021-10-20
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Used high frequency tube mills，how to correctly match is very important?2021-10-17
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The method of directly forming to square pipe mill to adjust the r angle of the square tube2021-10-14
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How to correctly match the second-hand high frequency pipe welding machine is very important?2021-09-02
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How to solve the mechanism of weld flattening and cracking of second-hand welded pipe unit equipment?2021-09-02
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How to place the impedance in the second-hand high frequency longitudinal welded pipe equipment?2021-09-01
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How to solve the difficulties in forming thick-walled pipes of second-hand large welded pipe units?2021-09-01
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