Characteristics and application of galvanized pipe
0Go 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， and more than a dozen workers were nervously carrying out leveling work.
qNaranjoNitriding: also known as nitriding， it is the process of penetrating nitrogen atoms into the surface layer of steel. At present， gas nitriding is widely used in the production of alloy steel pipe.
Welded pipe refers to the steel pipe with joints on the surface， which is welded after the steel strip or steel plate is bent and deformed into circular，Products Show square and other shapes. The blank used for welded pipe is steel plate or steel strip. How can the steel strip or steel plate be welded together and what are the welding skills?
KPascu ValleySeamless pipe
Yt Material requirements
The reinforcement mesh is used for embankment protection or for the protection of the whole riverbed and river bank，EscasuAlloy pipe GH4169The scope of application will be improved which is more suitable for the river channel with relatively gentle original bank slope. Taking the design dry water level as the boundary， the upper part is slope protection works and the lower part is foot protection works.
Go 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， and more than a dozen workers were nervously carrying out leveling work.
p Frame line crack
AGalvanized pipe is a kind of light thin-walled steel pipe with hollow square section， also known as steel cold-formed profile. It is a section steel with square section shape and size， which is made of Q hot-rolled or cold-rolled strip or coil as the base material， the corner size and edge flatness of hot rolled extra thick wall galvanized pipe reach or even exceed the level of resistance welding cold formed galvanized pipe.
JEquipment maintenance The weight of seamless pipe is light， and its weight is only one fifth of that of anti steel.
fLLongitudinal welded pipe has the advantages of simple production and processing technology， high production efficiency，Products Show low cost and rapid development trend. The compressive strength of spiral welded pipe is generally higher than that of straight welded pipe. Narrow blank can be used to produce welded pipe with large pipe diameter， and blank with the same total width can also be used to produce welded pipe with different pipe diameter. However， compared with the straight seam pipe with the same length the welding length is increased by ~ ， and the production rate is low.
Platform reinforcement mesh is a widely used reinforcement mesh product， such as industrial maintenance platform， berm， etc. this kind of reinforcement mesh is widely used in industry， municipal administration， electric power， coal mine and other fields，Products Show and has the strongest resistance to surface impact， especially the reinforcement mesh with a cross bar spacing of mm has a strong ability to resist lateral impact.
General welded pipe: General welded pipe is used to transport low-pressure fluid. It is made of qa，EscasuAlloy pipe GH4169The scope of application will be improved qa and QA steel. It can also be made of other mild steel that is easy to weld. Water pressure， zigzag， flattening and other tests shall be carried out for steel pipes， and there are certain requirements for surface quality. Generally， the delivery length is -m， 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， so that the width is compressed to achieve the expected parameters and the compression amount is adjustable; Straighten the width with staggered straightening wheels.
Because of this characteristic， seamless pipe is widely used in oil transportation，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd natural gas， natural gas， water and some solid materials transportation. Smooth steel pipe has strong bending advantages compared with other steel pipes. And the smooth steel pipe is also light in weight. It is a very economical single-sided steel.
vNaranjoThe laying of reinforcement mesh can speed up the construction speed and shorten the construction period. In order to reduce the impact of construction on road traffic， the reinforcement and maintenance works of the two bridges are expected to be completed in the middle of next month.
tG The zinc coating is thick， the crystallization is detailed， uniform and non porous， and the corrosion resistance is excellent;
The first is people. Human factors are the control focus of welding. Therefore， welders with skilled technology and welder certificate shall be selected for necessary technical training and disclosure. It shall not be replaced at will to ensure the relative stability of the welders welding the pipeline.