The preparations for the construction of high-speed reinforcement mesh include the preparation and inspection of raw materials， the inspection and acceptance of the lower layer of the pavement， and the preparation of construction equipment and engineering machinery.
6Special shaped pipe: square pipe， rectangular pipe， cap pipe， steel pipe for hollow rubber steel doors and windows welded by general carbon structure steel and Mn steel strip，Products Show mainly used as agricultural machinery components，NewvitasCustom welded pipe manufacturerIntegrity management steel windows and doors， etc.
wBainesThe key purpose of grinding and polishing alloy pipe is to moisten the surface， and the relevant limit accuracy or appearance change is not easy to change.
Galvanized pipe， also known as galvanized pipe， is divided into hot-dip galvanizing and electro galvanizing. The hot-dip galvanizing layer is thick， the coating is uniform， the adhesion is strong and the service life is long. The electroplating cost is low， the surface is not smooth， 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， square tube， etc; Handles and hinges can also be installed on the reinforcement mesh that needs to be moved or opened frequently.
TnSeamless pipe has a high position in steel pipe， and there are many large factors. The main usage has accounted for more than %， which is applicable to all walks of life. Seamless pipe factories in China are widely produced. At present， the number of factories in China is also increasing every year，Products Show which is determined by the nature and production conditions of seamless pipe. The common production processes and processes are more complex.
Identification method of galvanized pipe
Galvanized pipes are designed to maintain high enough corrosion resistance.
cSome applications of I-beam:
YPrecautions for galvanized pipe storage
EMarketing DepartmentIdler pipe: it is used for electric welding steel pipe of idler of belt conveyor. It is generally made of Q， QA，NewvitasCustom welded pipe manufacturerIntegrity management B steel and steel， with a diameter of -mm. There are certain requirements for pipe tortuosity， end face straightness with the center line and ovality. Generally， water pressure and flattening tests are carried out.
kMClassification by end shape
It has iron zinc alloy layer and compact combination， which shows unique corrosion resistance in marine salt spray atmosphere and industrial atmosphere;
The two ends of the steel produced by the seamless pipe manufacturer shall be cut into right angles， and the burrs on the surface shall be removed， which is the raw material used by the seamless pipe manufacturer. The embryo prototube embryo needs to be cut by a cutting machine to form an embryo material with a length of about one meter， which is sent to the furnace for heating through the conveyor belt. The billet is sent to the furnace. After internal heating，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd the temperature is about degrees， and the fuel used is often ethyne. Temperature control in the furnace is a very key factor.
Meticulous workmanshipzAccording 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， and generally entered a wave of upward trend in the first quarter. However， 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 China&#;s consumption of galvanized pipe and seamless steel pipe， and even a contraction month on month; Secondly， the blind expansion of galvanized pipe factory confused the sense of rhythm of supply and demand balance.
U The small length of repair welding is mm; The raw material shall not exceed mm after grinding by welding edge.
There are many types of galvanized pipes， mainly including cold plated seamless pipes and hot-plated seamless pipes. But now the previous one is no longer used. The hot-dip seamless tube is still in use. Hot dip galvanized pipe is mainly used for steel pipes with low pressure fluid such as water and gas. When in use， if in normal working environment the thickness of galvanized layer of hot-dip galvanized seamless steel pipe is up to μ M above， and it has been used safely for about years. It can be seen that its service life is very long. Of course， when purchasing， we should also find regular manufacturers to order. Only in this way can we achieve this service life. As long as the galvanized pipe is cleaned after pickling， it is basically cleaned in ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank. In order to ensure the quality， electro galvanizing will not be used. There are also some small enterprises in the market. They will use electro galvanizing in production. In this way， although it is much cheaper in price. However， the quality is very good when used and it is also easy to have problems.
sBainesThe pipeline shall be positioned according to the drawing design， 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， 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， Domestic hot welded pipe has gradually formed a situation to replace smooth pipe.
Straight seam welding is adopted for larger diameter welded pipe and spiral welding is mostly adopted for large diameter welded pipe; According to the top appearance of seamless steel pipe， it is divided into annular welded pipe and special-shaped (square， pitch， etc.); according to different materials and main purposes， it is divided into mining anti liquid transportation welded steel pipe， hot-dip galvanized welded steel pipe for bottom pressure liquid transportation， etc. it is arranged from small to large according to diameter * wall thickness according to the specification model and dimension table in the current standard.