Divided by weld -- straight welded pipe and spiral welded pipe.
0The pollution of the joint causes the welding cracking. The composite pipe welding is an accurate work. If it is not done well， it will not only waste resources， but also lead to work efficiency， rework and restart， and waste financial resources.
nSt Albert Direct rolling pass system. The direct rolling pass system refers to the pass system in which the two open legs of the I-beam pass are on the same side of the roll axis at the same time， and the waist is parallel to the roll axis.
Galvanized steel pipe: in order to improve the corrosion resistance of steel pipe，Products Show general steel pipe (black pipe) shall be galvanized. Galvanized steel pipes are divided into hot-dip galvanizing and electro galvanizing. The hot-dip galvanizing layer is thick and the cost of electro galvanizing is low.
ILeduziTransformer tube: it is used to make transformer heat dissipation tube and other heat exchangers. It is made of general carbon steel. Flattening，بيتربوروQ345 مصنع الأنابيب الملحومةهل فني الشركة المصنعة مهم؟ flaring， and there are certain requirements for the tortuosity of steel pipes.
EjIn the production process， the stainless glittering pipe is affected by the outside and product surface. Due to galvanizing， the corrosion protection is not corroded. This is the thickness of zinc， and the quality and strength of its coating depend on longevity.
However， compared with plastics， these pipes， like other metals， remain stable and will not be affected by high temperature.
A major defect is its instability to the corrosion process，Products Show which can not resist all factors. Producers need a solution that can solve the corrosion problem. The decision has been found. They become a galvanized steel pipe.
gb. The professional two-sided arc welding processing technology can complete the electric welding at a good position， which is not easy to have the disadvantages of staggered joint welding deviation and incomplete penetration， and it is very easy to manipulate the welding quality.
ZHardness of reinforcement construction of reinforced mesh on concrete bridge deck; Including key lime mixing and packaging materials， and the calculated specifications must meet the quality standards and construction standards.
TAnalysis project Because the zinc coating has excellent ductility， it can be formed by cold stamping， rolling， bending and so on without damaging the coating.
qJWhen excavating a tunnel in a stratum where the rock is not hard and complete， it is generally necessary to excavate a diversion pit (also known as pilot hole) and set temporary support.
Installing the pipe structure means the complexity of some elements.
Seamless tube has high elasticity， can be reused on mechanical equipment， no memory no deformation，Products Show anti-static.
Welcome calls xThird， between the flange on the inner side of the sidewalk beam and the old bridge deck，بيتربوروQ345 مصنع الأنابيب الملحومةهل فني الشركة المصنعة مهم؟ the widening part of the bridge deck is poured with concrete， and the concrete of the bridge deck pavement is poured at the same time to form a carriageway. The reinforcement mesh is set on the bridge deck pavement and the widening part of the bridge deck to strengthen the overall performance. Fourth， the bridge deck expansion joint is set at the center of the cantilever beam top and the carriageway pavement is extended and erected on the cantilever beam.
MX-ray or ultrasonic testing shall be carried out for repair welding of alloy pipe， dead end welding of strip steel and circumferential seam. For the spiral welding of steel for the transportation of flammable general liquids， yibai%sx ray or ultrasonic testing shall be carried out. For the spiral welding of alloy pipes for the transportation of water， wastewater， heating steam and other general liquids， X-ray or ultrasonic testing sampling inspection (%) shall be carried out.
fSt AlbertPrecautions for galvanized pipe storage
wT The surface of hot-dip galvanized parts is bright and beautiful.
Spray is OK. This method can not only completely remove rust，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd oxide and dirt， but also the welded pipe will be affected by abrasive impact and friction， resulting in the average roughness of the welded pipe.