According to the historical records of the recent four years， the zinc price in the first quarter was generally higher than that in the whole year， zinc prices continued to decline in the first quarter of ， and showed a trend of accelerating the decline day by day. There are two key reasons for the beginning of this year. First， the vicious change of the real estate industry has led to a rapid decline in the growth rate of Chinas consumption of galvanized pipe and seamless steel pipe， and even a contraction month on month; Secondly，Products Show the blind expansion of galvanized pipe factory confused the sense of rhythm of supply and demand balance.
7Are there many welded types of mesh produced? According to the welding type and overall improvement，Victoria de Las TunasAlloy tubeOnline consultation the difference between the reinforcement mesh and the welded mesh is not particularly large. It is still due to the scattered quality of the southern city. From the perspective of development to the longitudinal and transverse interleaving devices of the reinforcement mesh， the bound or welded mesh has better application quality.
The 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.
KrThe use of hot dip galvanizing has expanded with the development of industry and agriculture. Therefore， hot-dip galvanized products have been widely used in industry (such as chemical equipment， petroleum processing， marine exploration，Products Show metal structure， power transportation， shipbuilding， etc.)， construction (such as water and gas transportation heating room)， wire casing， house， etc.)， bridges， transportation，Products Show etc. because hot-dip galvanized products
Fabrication and installation of pipe support:
Acceptance according to standards
l 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.
SLongitudinal welded pipe has the advantages of simple production and processing technology，Victoria de Las TunasAlloy tubeOnline consultation high production efficiency， 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.
IFree consultationA major defect is its instability to the corrosion process， 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.
kRThere are several ways to clean galvanized pipes
There are several ways to clean galvanized pipes
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，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd so there is galvanized pipe.
Inspection requirementswReinforcement mesh is manufactured by automatic and intelligent production line under the strict quality control of the factory. Grid size， reinforcement specification and quality are strictly controlled. The longitudinal and transverse bars of the reinforcement mesh form a network structure， so it has good bonding and anchorage with the concrete， and the load is evenly distributed， which obviously shows the seismic crack resistance of the reinforced concrete structure.
GThe utility model has the advantages that the axial force of the roll is small， the axial movement is small and the working slope is not required，
Pure zinc layer is a plastic zinc layer in hot-dip galvanizing. Its properties are basically close to pure zinc and have ductility， so it is flexible.
qBayamoWelded thin-walled pipe: mainly used for making furniture， toys lamps， etc. In recent years， thin-walled tubes made of stainless steel strip are widely used， such as high furniture， decoration， fence and so on.
yBHow are seamless tubes made?
Seamless tube has high elasticity， can be reused on mechanical equipment， no memory， no deformation， anti-static.