1.Confirm the defect 100% UT weld inspection of all welds, crack markings location, length, depth and direction. If the entire weld is defective, it ...
Date:2018-01-29 Tags:Difference between LSAW Steel Pipe and Hot Stretch Reducing Pipe
Lateral cracks in the longitudinal seam submerged arc welded pipe appears after rework, in particular: 1. Confirm the defect 100% UT weld inspection...
Date:2018-01-26 Tags:Longitudinal seam submerged arc welded steel pipe transverse crack repair
Surface micro-cracks in LSAW steel pipe products have a great impact on quality, from the commutation of sentences, and retirement, especially niobium...
Date:2018-01-26 Tags:Causes Analysis Straight seam steel surface cracks
efficiency. ...
Date:2018-01-26 Tags:Prewelding of LSAW Steel Pipe
Longitudinal submerged arc welded pipe due to the use of different environmental conditions, and the objective conditions of change over time, coupled...
Date:2018-01-26 Tags:Cause Analysis Hydrogen induced crack straight seam steel pipe
2, the quality of welding directly determines the quality of welded pipe, seamless steel pipe welding the biggest difference is. Longitudinal high-fre...
Date:2018-01-26 Tags:Difference between hot stretch reducing pipe and LSAW pipe
Drainage Pipeline...
Date:2018-01-25 Tags:Drainage Pipeline
Analysis of Steel Tube Bending and Deformation Deformation heat treatment principle shows that the heat processing (welding), due to uneven heating t...
Date:2018-01-25 Tags:Steel Tube Bending
Advantages and disadvantages of welded steel pipe Wall light table average wall thickness (steel appearance, steel grade resolution, brightness) can ...
Date:2018-01-25 Tags:Advantages and disadvantages of welded steel pipe and classification
Large Diameter Seamless Steel Thermoforming Manufacturing Process...
Date:2018-01-25 Tags:Large Diameter Seamless Steel Thermoforming Manufacturing Process
Hot-rolled seamless steel pipe defects Separated Located in the vertical distribution of the steel tube surface, a spiral rise, massive metal separa...
Date:2018-01-25 Tags:Hot-rolled seamless steel pipe defects
Spiral welding production process is simple, high production efficiency, low cost and rapid development. The strength of spiral welded pipe is general...
Date:2018-01-25 Tags:Spiral Welding
Hot-rolled seamless steel pipe products generally require two heating, which perforated pipe in the heating and rolling of the pipe diameter after a g...
Date:2018-01-24 Tags:Tube Billet Heating Defects and Its Prevention
Spiral Weld Seam...
Date:2018-01-24 Tags:Spiral Weld Seam
The advantages of galvanized pipe are as follows: First, the surface of the galvanized tube after hot-dip galvanizing can be protected and difficult ...
Date:2018-01-24 Tags:Advantages of Galvanized Pipes
