The use of welded steel mesh in China is still in its infancy. At present， the use of welded steel mesh in China accounts for less than one of the total amount of steel reinforcement. In the early s， steel welded mesh was listed as a key implementation project by the science and Technology Commission and the Ministry of construction， air and steam， which is made of hot-rolled steel strip coil as pipe blank， often warm spiral forming and double-sided active submerged arc welding or single-sided welding.
eBarbadosI-beam is widely used
In order to ensure the welding quality of welded pipe，Products Show the forming roll，Dallas300 tubes sans soudure combien de kilogrammes par mètrePrise en charge complète de la maintenance guide roll， extrusion forming roll and sizing roll must be adjusted once， and then the most important thing is to adjust the closing plate hole， guide roll and extrusion forming roll of the forming roll. Among them， the guide roller has the s of controlling the weld direction of the welded pipe and the height width ratio of the finished rolled pipe， reducing the edge widening， controlling the edge springback of the finished rolled pipe， and ensuring that the weld is vertical without screwing into the extrusion roll.
GPetrozawotsk Spiral welded steel pipe (sy- for pile is made of hot-rolled steel strip coil as pipe blank， often warm spiral forming，Products Show double-sided submerged arc welding or high-frequency welding. It is used for foundation pile of civil building structure， wharf， bridge， etc.
UdThere shall be no bending at the welded junction and there shall be no staggered joint during assembly. Electric welding positioning is generally spot welding. After inspection and straightening， the free conversion method shall be used for welding as far as possible.
Spiral seam submerged arc welded steel pipe (SY- for pressure fluid transportation is a spiral seam steel pipe used for pressure fluid transportation， which takes hot-rolled steel strip coil as pipe blank， often warm spiral forming and welded by double-sided submerged arc welding. The steel pipe has strong pressure bearing capacity and good welding . After various strict scientific inspections and tests， it is safe and reliable to use. The steel pipe has large diameter and high transportation efficiency， and can save the investment in laying pipelines. It is mainly used for transporting oil and natural gas.
The advantages of shiny galvanized pipe are:
vThe side length of I-beam is small and the height is large， so it can only bear the force in one direction.
DGenerally，Products Show what are the customers requirements and standards during acceptance? When the galvanized pipe is accepted， you can judge whether it is qualified from the appearance，Dallas300 tubes sans soudure combien de kilogrammes par mètrePrise en charge complète de la maintenance or whether there are problems such as missing plating or bubbles on the outer wall of the whole square pipe. Only by solving these problems in time can it be judged as qualified and better used.
SSampling inspection Construction preparation
lK According to the process， it is divided into arc welded pipe， resistance welded pipe (high frequency and low frequency)， gas welded pipe and furnace welded pipe.
Seamless pipe is resistant to corrosion acid， alkali， salt and atmospheric environment， high temperature， impact and fatigue，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd does not need regular maintenance， and the effective life is more than years;
Classification by use
analysiscThe use of welded steel mesh can make the project construction convenient. As long as the welded reinforcement mesh is laid as required， the concrete can be irrigated， eliminating the links such as on-site cutting， placing and binding of reinforcement one by one.
YPassivation treatment operation of alloy pipe
According to the pipe wall thickness， pipes made of relatively thin materials such as steel strip can be welded with high frequency， and some thin-walled pipes can be welded with shielding gas; Pipes with wall thickness more than mm can be welded by hand.
kBarbados Polished stainless steel pipes shall be subject to internal inspection and strict manual selection by the steel pipe quality inspector through metal detector (or hydrostatic test)， and qualified products shall be packaged and delivered.
cHInstalling the pipe structure means the complexity of some elements.
The use of welded steel mesh in China is still in its infancy. At present， and specifications and procedures were formulated.steel welded mesh was listed as a key implementation project by the science and Technology Commission and the Ministry of construction