Straight seam welded pipe (ERW straight seam welded steel pipe) is formed on the hot rolled plate of the forming machine, the skin effect and proximit...
Date:2018-03-09 Tags:How To Deal With The Welding Slag of Spiral Welded Pipe
Straight seam welded pipe (ERW straight seam welded steel pipe) is formed on the hot rolled plate of the forming machine, the skin effect and proximit...
Date:2018-03-09 Tags:Improve Production Technology of ERW Steel Pipe
Roll-bending steel direct high-frequency resistance welding technology is a rapid production of pipeline technology, and it is widely used in many fie...
Date:2018-03-09 Tags:Stress on the High-frequency Straight Seam Resistance Welding Pipe Trench Corrosion
ERW pipe unit more faults, the cause of the fault is also more complicated, the results are often caused by a variety of reasons, may be caused by a v...
Date:2018-03-08 Tags:Common Fault ERW Steel Pipe Unit
Straight seam high frequency (ERW) welding and induction welding is divided into two forms of two welding contacts, hot rolled coil as raw material, t...
Date:2018-03-08 Tags:ERW,SSAW and LSAW
When the large-diameter straight seam submerged arc welded steel pipe hydrostatic testing machine tests the pressure, the first sealing device passes ...
Date:2018-03-08 Tags:Hydrostatic Pressure Test Methods and Procedures of LSAW Steel Pipe
Submerged arc welded steel pipe, although the tensile specimen sampling direction is basically independent of the results, but the test results V Char...
Date:2018-03-08 Tags:Difference between cracks in spiral submerged arc welded steel pipe and straight submerged arc welde
Straight seam double-sided submerged arc welded pipe (straight seam steel) professional skills are as follows: 1. Double Submerged Arc Welding In the...
Date:2018-03-08 Tags:Longitudinal submerged arc double pipe welding expertise
Literature records: "The steel surface conditions can be covered environment and the pipe insulation around four weeks, the pipe wall soil conditions ...
Date:2018-03-08 Tags:ERW pipe corrosion problems
High-frequency electric resistance welded steel pipe (ERW steel) has the following characteristics: (1) High frequency resistance welding brazing is ...
Date:2018-03-08 Tags:High-frequency resistance welded steel pipe production characteristics
Technical advantages of high-frequency resistance welded steel pipe (ERW steel pipe) Forming roller column the following:...
Date:2018-03-08 Tags:Technical advantages of high frequency welded pipe forming roller
ERW pipe into the molding machine, the deformation of the pipe through an induction coil or contact welding angle, the induction coil current induced ...
Date:2018-03-08 Tags:ERW steel pipe welding common defects
There are many problems encountered in the production of steel pipes. The following is a discussion of machine analysis problems for a given diameter....
Date:2018-03-08 Tags:Analysis of Production Failure of Longitudinal Welded Pipe Units
Non-destructive testing means does not damage or affect the performance of the measured object, does not harm the object to be detected to provide the...
Date:2018-03-06 Tags:NDT Testing
Large diameter straight seam welded pipe cold expansion is the use of hydraulic or mechanical means, the steel pipe from the steel wall radially outwa...
Date:2018-03-06 Tags:Large diameter straight seam welded pipe cold expansion
