Seamless steel pipe, hot stretch reducing pipe, straight sea

Seamless steel pipe, hot stretch reducing pipe, straight seam steel pipe the difference between

 

 They have the essential difference between them? Following two confusing market products, hot stretch reducing pipe with straight seam - the difference between the pipe to make a simple exposition.

 

1, the quality of the weld directly determines the quality of the welded pipe, welded and seamless pipe maximum difference lies. Straight seamless steel pipe, high-frequency welding, straight seam carbon sets not eliminate weld with the parent just convergence, and not completely fused into one - stand up to the test of time and high pressure. Hot stretch reducing diameter steel pipe in the high-frequency welding to go through the overall heating temperature of 800 degrees, the overall annealing, and then be turned processing, after a series process, the performance of the weld and the parent organization - has been the same, completely melting one, well done from the seam to a seamless transition.

 

 2, caused by different processes on product quality, hot stretch reducing pipe in high-frequency welding process to be conducted in a straight seam welded pipe no ------ Clear internal and external burrs online. The presence of burrs will affect the flow of the fluid inside the tube -, burrs blocking the normal flow of the fluid, thereby generating swirl. According to the principles of fluid mechanics, weld partial pressure must increase, uneven force uniform safety factor is also greatly reduced the pipe, hot stretch reducing steel production process - take full account of the risks that exist glitch, to limit the burr removal so as to make it uniform thickness, no difference in the appearance and seamless pipe. So from that point of view, the hot stretch reducing steel pipe completed from the seam to a seamless transition.

 

 

3, of course, the difference between the two is not just limited to the above three points, but illustrates the Longitudinal and hot stretch reducing pipe there are significant differences. The latter on the basis of the Longitudinal online clear internal and external burrs, the overall heating - type variable processing of a series of new technologies, so that it made a qualitative leap in widespread use in high-pressure areas, and straight The seam welded only limited water gas transport in the low-pressure environment. Although some people seamless steel pipe, hot - the tension reducing steel pipe, straight seam welded pipe three saw understanding in a fuzzy state, but I think over time, the practice proved correct understanding of the hot stretch reducing pipe this unique product, let more and more - in the seamless steel pipe market role.

 

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