In 3PE anticorrosive steel pipe of water supply municipal engineering, pipeline engineering is an important part and a concealed underground project. Due to the narrow scope of pipeline engineering, geological conditions such as geology, topography and water level are often encountered. When the pipeline meets the ground obstacles or crosses the river, different construction techniques are usually used to complete the construction. Therefore, the construction of pipeline engineering is very complicated. The raw material of large diameter spiral steel pipe is hot rolled steel plate. Hot rolled plate, that is, hot-rolled steel plate or strip, commonly known as hot plate, usually also written as template, such as hot-rolled plate, but all refer to the same hot-rolled plate. It refers to steel plate with width greater than or equal to 600mm and thickness of 0.35-200 mm and steel strip with thickness of 1.2-25 mm. Cold rolled sheet is made of hot rolled coil at room temperature and recrystallization temperature. The difference between hot-rolled steel and cold-rolled steel: hot-rolled steel is divided into structural steel, low-carbon steel and welding steel, and then according to different steel to find the required steel, and check the density and composition of specific steel. Hot rolled steel plate has low hardness, easy processing and good ductility. Cold rolled sheet has higher hardness and higher processing relative strength. The manufacturing loss rate of spiral steel pipe refers to the proportion of scrap and raw materials in the manufacturing process. According to the statistical analysis of professional and technical personnel for many years, the manufacturing loss rate of spiral steel pipe is between 2% - 3%.
Ipn8710 drinking water anti-corrosion steel pipe welding pipe is divided into spiral seam welding and straight seam welding. Spiral seam welded steel pipe is divided into automatic submerged arc welding steel pipe and high frequency welding steel pipe. Straight seam steel pipe is divided into ordinary straight seam steel pipe and stainless steel welded steel pipe. According to the manufacturing method, seamless steel pipe is divided into hot-rolled pipe and cold-rolled pipe, and its precision is divided into ordinary and advanced. The nominal diameter of cold-rolled pipe is 200 mm and that of hot-rolled pipe is 600 mm. Seamless steel pipe also has stainless steel seamless steel pipe. Stainless steel seamless steel pipe is divided into hot-rolled, hot extruded stainless steel seamless steel pipe and cold-rolled stainless steel seamless steel pipe. Quzhou Jundu pipeline is specialized in the production and sales of single and double layer FBE coating, pipe internal and external coating, three-layer polyethylene (3PE), double-layer polypropylene (2PP) and three-layer polypropylene (3PP). Various kinds of epoxy resin anti-corrosion, ipn8710 polymer anti-corrosion coating, cement mortar lining anti-corrosion, epoxy coal immersed steel pipe anti-corrosion, ipn8710 non-toxic drinking water anti-corrosion, epoxy powder hot-melt steel pipe anti-corrosion, cement mortar lining g steel pipe anti-corrosion, plastic coating inside and outside steel pipe, cold and hot water steel plastic composite pipe, fire and mine plastic coating, epoxy powder spraying polyethylene anti-corrosion, prefabrication direct burial protection Temperature protection engineering.
The warehouse of the company has more than 12000 tons of structural steel pipes such as seamless steel pipes, welded steel pipes, T-shaped welded pipes, straight seam welded pipes, high-pressure pipes and other special steels. Steel pipe forming process large diameter longitudinal welded pipe main production process description: 1. Panel inspection: it is used to manufacture large diameter submerged arc welded straight seam steel pipe into the production line and conduct full plate ultrasonic inspection first; 2. Milling edge: two edges of steel plate are milled by milling machine on both sides to achieve the required plate width, plate edge parallelism and groove shape; 3. Pre bending: pre bending machine is used to pre bend the plate edge to meet the required curvature; natural gas pipeline steel pipe is sold in three layers, 3PE anti-corrosion steel pipe, L245, L290, L360, L415, l485, l245m, l245n, l290m, l290n, l360m, l360n steel pipe with few welds, straight seam high-frequency resistance welded steel pipe and various pipe materials. 3PE anticorrosive steel pipe has the advantages of light weight, high strength, heat preservation, sound insulation, flame retardant, cold resistance, anti-corrosion, non water absorption, construction turbulence, etc.
