Standing seam metal roofs are gaining immense popularity among most of the homeowners today. It has garnered immense attraction mainly due to its beneficial features. It is easy to find a variety of choices, which include shape, thickness, l...英国华人论坛
Only precision welded pipe to hit the burr. Such a spiral welded pipe construction process of welding the line energy generated by the small, the influence of the base metal heat affected zone is also small. Multi-wire welding after the form...英国华人论坛
A while ago metal roofing solutions were available only for commercial buildings, limiting home roofing options to asphalt or wood based materials. The high costs and complicated installation processes made standing seam metal roofs seem imp...英国华人论坛
ERW steel pipe: high-frequency straight-slit electric resistance welded pipe, which adopts hot-rolled wide coil as raw material, and undergoes pre-bending, continuous forming, welding, heat treatment, sizing, straightening, cutting and the l...英国华人论坛
The strip is formed in a spiral shape, and the inner and outer seams are welded by submerged arc welding to make a spiral seam steel pipe. It can be widely used in the production of large diameter steel pipes for the following reasons:1) A...英国华人论坛
High-frequency welded pipe(erw steel pipe) production process, that the impact factors in the production process quality steel products are raw materials, welding technology, roll adjustment, rolling seven aspects roller material, equipment...英国华人论坛
The research report titled Seam fatigue Strength Tester has adopted an analytical approach to evaluate the dynamics of the Seam fatigue Strength Tester market. It provides a detailed analysis comprising an in-depth research on the Seam f...英国华人论坛
Level of Q345B steel tube Q345A, is do not impact; Grade Q345B, impact is 20 degrees at room temperature; Grade Q345C, impact is 0 degrees; Q345D grade, is 20 degrees - impact; Q345E level, it is - hit 40 degrees. In the impact of different...英国华人论坛
Straight seam welded steel pipe refers to less than 630 mm in diameter straight seam resistance welding steel pipe, but the other is called high frequency straight seam steel pipe.Main characteristics as well as the high frequency straight s...英国华人论坛
The Effect of Welding Material on Weld Microstructure and Properties of Spiral Two-step Welding Pipe Abstract: Aim at the problem of LASO steel weld impact property which occurred in mass production spiral two-step welding pipe using the wel...英国华人论坛
Straight seam line pipe is used in the special oil pipeline and gas transmission pipeline steel tube, material for L175 L855, X42 X85 and LNB and other special materials. Straight seam line pipe domestic standards GB/T9711.1-1997, GB/T9711.2...英国华人论坛
There are many kinds of straight seam welded pipe quality inspection method, physical method which is the most commonly used inspection method, physical test some physical phenomena is used for measurement or test methods. Material or inter...英国华人论坛
Resistance high frequency straight seam welded pipe (Electric hold Welding, referred to as ERW) with seamless steel tube the biggest difference lies in the ERW a weld, this also is the key of the ERW steel tube quality. Modernization of ERW...英国华人论坛
In order to detect the transverse or longitudinal defect of the weld of LSAW steel pipe longitudinal seam, ultrasonic testing was carried out by jet (water column) coupling. Jet (water column) ultrasonic flaw detection is the probe and the p...英国华人论坛
Frequency welded pipe production process, how to ensure the quality of products meet the technical standards and the needs of customers, we have to factor in steel production process affect product quality analysis. Through the company 76mm...英国华人论坛
Metallographic sample through the detection of cracks in the surface of the weld cracks visible copper plaque, the study found that that there are a lot of crack surface presence of copper, copper is The main reason causing the weld crack ge...英国华人论坛
Through this process of production of steel pipe weld fusion center will appear as a white line on both sides of the heat affected zone will produce fusion line extending from the middle toward the surface and the inner and outer metal flow...英国华人论坛
Heat treatment is an important process in the manufacture of machinery, as compared with other processing, heat treatment generally does not change the overall shape and chemical composition of the workpiece, but by changing the microstructu...英国华人论坛
According to the estimates of the volume weight and actual weight per unit length of the coil, the budget of the long steel rolls, cut the whole rationale for determining the length and the number of qualified steel sheets; same time as the...英国华人论坛
The Report Titled 'Global and Chinese Girth Seam Welding System Market, 2011-2021 Industry Research Report' is a efficient and comprehensive study on the Present state of the global Girth Seam Welding System Market with a focus on the Chines...英国华人论坛
The Report Titled 'Global Circumferential Seam Welding System Market, 2016-2021 Industry Research Report' is a efficient and comprehensive study on the Present state of the global Circumferential Seam Welding System Market with a focus on th...英国华人论坛
The 'Global and Chinese Circumferential Seam Welding System Industry, 2011-2021 Market Research Report' is an in depth and systematic study of the present state of the global Circumferential Seam Welding System market along with the past tre...英国华人论坛
The 'Global and Chinese Longitude Seam Welding System Industry, 2011-2021 Market Research Report' is the detailed comprehensive analysis of the current state of the global Longitude Seam Welding System industry with a focus on the Chinese ma...英国华人论坛
The 'Global and Chinese LMM Seam Width Measuring Machine Industry, 2011-2021 Market Research Report' is the detailed comprehensive analysis of the current state of the global LMM Seam Width Measuring Machine industry with a focus on the Chin...英国华人论坛