In order to improve the corrosion resistance of steel pipe， the general steel pipe (black pipe) is galvanized. The galvanized pipe is divided into hot-dip galvanizing and electric steel zinc. The hot-dip galvanizing layer is thick and the cost of electric galvanizing is low， so there is galvanized pipe.
4 Stair step plate (stair step plate) is a kind of stair used for platform with steel bar mesh. According to the installation method， it generally has two types: welding fixation and bolt (composition: head and screw). It is directly welded to the keel and does not need the side plate with step plate. It is relatively economical and durable， but it is not easy to disassemble， Thickened side plates are required on both sides of the bolted tread plate，Products Show and holes are drilled on the side plates.
lManzanilloAlloy pipe is a very important way and type of seamless steel pipe. Its use is relatively common. It is widely used in various engineering projects house construction and building decoration. Its fracture will always be found in the production，Shegord AvilaAlloy tube GH3536How to take care of it manufacturing and key marketing of alloy pipe， That is， many stages of production and processing are not done well. Another is that the seasoning is not enough and the proportion of chemical molecules is wrong. There are all reasons.
Defect detection of seamless pipe
CNakaGo all the way along the Tiegang overpass to wharfNear the lower bridge mouth， the reporter saw that a pump truck with an arm of meters was standing under the bridge spraying cement on the bridge deck， we have produced galvanized pipe products for many years. Welcome friends who need to buy.
Seamless pipe is made of steel block or solid pipe blank，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd and then made by hot rolling， cold rolling or cold dial. Seamless pipe plays an important role in China&#;s steel pipe industry. Seamless pipe production processes are relatively rich， generally according to the corresponding steps of processing and production.
Spiral seam high-frequency welded steel pipe (sy- for general low-pressure fluid transportation takes hot-rolled steel strip coil as pipe blank and is often spiral formed at warm temperature. High frequency lap welding method is selected for welding spiral seam high-frequency welded steel pipe for general low-pressure fluid transportation.
sIt can withstand continuous moderate impact and can provide composite plates of various thicknesses
TWelded pipes with large or thick diameter are usually made of steel blank immediately， while small welded pipes and thick wall welded pipes must only be welded immediately according to nylon tape. After simple grinding and polishing， metal wire drawing is OK.
WExecutive standard Seamless pipe mechanical properties easy processing， etc;
gZ General carbon steel wire sleeve (GB / t- is a steel pipe used to protect wires in electrical installation projects such as industrial and civil buildings and installation of machinery and equipment.
Precautions for galvanized pipe storage
Carbon: the higher the carbon content，Products Show the higher the hardness of steel， but the worse its plasticity and toughness
High quality brandvIf the steel pipe is not welded well， that is， the welding conditions of steel mesh skeleton composite pipe shall be provided.
SIt is a potential rolled strip steel with rectangular section for general purpose. It is very common on construction sites. Its specifications are expressed in thickness and width. At present，Shegord AvilaAlloy tube GH3536How to take care of it most of the flat steel on the market are finished steel， which can be used ready-made for components， ladders， bridges and fences. Flat steel can also be used as blank for welding rigid steel and slab for laminated thin plate.
The product can withstand any range of operating temperature.
vManzanilloIn order to ensure the welding quality of welded pipe，Products Show 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.
rQ Welded steel mesh is aesthetically pleasing.
According to the purpose， the welded pipe has general purpose and high temperature and high pressure. The pipe used in the latter is often special alloy steel. The problem of shrinkage cracks in the welding process and the mechanical properties of the pipe in the heat affected zone must be considered and solved， and the mechanical properties of the pipe in the heat affected zone will not be greatly changed due to the influence of welding operation.