According to the data information display information there is an inseparable correlation between the annual real estate sales data information and the apparent consumption data information of galvanized pipe. From the consumption surface of the middle and lower reaches of galvanized pipe， decoration design， elevator car， handicrafts， which is a continuous rolling process of hollow base metal without center and tip. Under the condition of ensuring the capillary welding quality， the whole welded pipe is heated to more than ℃ by the welded pipe tension reduction process，Products Show and then rolled to finished pipes with various outer diameters and wall thicknesses by the tension reduction machine ( times in total). The fluid pipes produced by developed countries in the world have adopted the welded pipe smooth process in a large number of boiler pipes. With the development of society，St. asent40Cr thick wall seamless pipeBlast furnace production resumes after the holiday, prices are stable and sorted out Domestic hot welded pipe has gradually formed a situation to replace smooth pipe.
kBeiwanAll the cracks occur at -mm away from the edge below the alloy pipe， and the macroeconomic orientation is vertical to the cold rolling orientation， showing a "high mountain" shape.
Classification by use
QHenri de Castries When the end span plate is connected with the concrete beam for structural reinforcement， the length of the surface mesh reinforcement extending into the beam shall not be less than d. When the beam width is small， the extended reinforcement shall be bent . When the perimeter of the floor is poured integrally with the concrete beam or wall， the length of the surface mesh reinforcement extending into the beam shall not be less than the anchorage length of the small reinforcement required by the standard (without transverse reinforcement)， when the beam width is small， the extended reinforcement shall be bent.
Nj Construction preparation
The reinforcement mesh of the maintenance platform has the characteristics of extensive application， beautiful style，Products Show convenient installation and durability， Skirting plate (edge guard plate)， checkered plate guard plate， installation of connectors and other accessories can be added around. The reinforcement mesh is suitable for the reinforcement mesh manufactured in the factory and welded with cold-rolled ribbed reinforcement or cold-rolled smooth round reinforcement. The welded reinforcement mesh for reinforced concrete is a good and efficient material for concrete distribution. Flat steel with different specifications can be used for edge wrapping， Or wrap edges with angle steel， channel steel， square tube， etc; Handles and hinges can also be installed on the reinforcement mesh that needs to be moved or opened frequently.
Defect detection of seamless pipe
p Peak crack
IInstallation of galvanized pipe and precautions
PHigh valueGalvanized pipe features:
xPGeneral welded pipe: General welded pipe is used to transport low-pressure fluid. It is made of qa， qa and QA steel. It can also be made of other mild steel that is easy to weld. Water pressure， zigzag，Products Show flattening and other tests shall be carried out for steel pipes， and there are certain requirements for surface quality. Generally，St. asent40Cr thick wall seamless pipeBlast furnace production resumes after the holiday, prices are stable and sorted out and fixed length (or double length) delivery is often required. The standard of welded pipe is expressed in nominal diameter (mm or inch). The nominal diameter is different from the actual. Welded pipe can be divided into general steel pipe and thickened steel pipe according to the specified wall thickness， and steel pipe can be divided into threaded and non threaded according to the way of pipe end.
Because the zinc coating has excellent ductility it can be formed by cold stamping， rolling， bending and so on without damaging the coating.
Hardness of reinforcement construction of reinforced mesh on concrete bridge deck; Including key lime mixing and packaging materials， you need to pay attention to calculating the size of the building， and the calculated specifications must meet the quality standards and construction standards.
Information recommendationtThe correct and reasonable use of galvanized pipe can play a better role. The product can be widely used in the market because of its obvious performance advantages. Both strength and toughness are worth our choice. Lets see what the specific uses are and what the acceptance standards are?
OIn order to make the steel pipe workpiece have the required mechanical， physical and chemical properties， in addition to the reasonable selection of materials and forming processes，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd heat treatment process is often essential. Steel is the most widely used material in the mechanical industry. The microstructure of steel is complex and can be controlled by heat treatment. Therefore， the heat treatment of steel is the main content of metal heat treatment. In addition， aluminum， copper， magnesium， titanium and their alloys can also change their mechanical， 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.
lPThe whole structure is composed of zinc and quaternary crystals， forming dense crystals and barrier layer on the plate， which effectively prevents the penetration of corrosion factors. From the point of view of the strong zinc corrosion resistance of the barrier layer， when the zinc sacrificial anode is at the forefront of protection， the scratches and scratches of some coatings and the insolubility of zinc oxide layer play a protective and blocking role.
The second is the control of welding materials to ensure that the welding materials purchased are from formal channels with quality assurance certificate and certificate， which meet the process requirements; The recovery of welding rod head shall be strictly controlled to ensure the flow direction and dosage; Welding materials shall be baked in strict accordance with the process， and the amount of one-time distribution shall not exceed half a day.