Comparison Of Seamless Pipe Insulation And Cold Rolling Hot Rolling

Seamless steel tubes are used in a wide range of applications. The general-purpose seamless steel pipe is rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, and has the largest output, and is mainly used as a pipe or structural component for conveying fluid. .2 according to the use of three types of supply: a according to chemical composition and mechanical properties; b according to mechanical properties; c according to water pressure test supply. Steel pipes supplied in accordance with class ab are also subjected to hydrostatic tests if they are used to accept liquid pressure. Special-purpose seamless pipes include boiler seamless pipes, chemical power, geological seamless steel pipes and petroleum seamless pipes.

Seamless steel tubes have hollow sections and are used in large quantities as pipes for transporting fluids, such as pipes for transporting petroleum, natural gas, gas, water and certain solid materials, which are superior to spiral welded pipes. Compared with solid steel such as round steel, the steel pipe has the same bending and torsional strength, and is light in weight, and is an economical section.

Widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automotive drive shafts, bicycle frames and steel scaffolding used in construction, etc. The use of steel pipes to manufacture ring parts can improve data utilization, simplify manufacturing processes, save data and processing. In working hours, steel pipes have been widely used for manufacturing.

Seamless pipe in pipeline insulation is divided into hot rolling and cold rolling. Hot rolling is divided into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, geological steel pipe and other steel pipes; Rolling is divided into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, and other steel pipes, and also includes carbon thin-walled steel pipe, alloy thin-walled steel pipe, stainless thin-walled steel pipe, and special-shaped steel pipe.

Pipe insulation may be used in the production of equipment: steel pipe shot blasting machine, three PE winding equipment, 27simn seamless pipe PE pipe black and yellow jacket pipe puller, sandblasting descaling equipment, polyurethane low pressure transmitter, hair Foaming platform, FRP winding machine, two PE coating, cement mortar spraying machine and other anti-corrosion insulation supporting testing equipment.

Pipe insulation can exert adverse effects on performance in terms of deformation, stability and fatigue resistance of anti-corrosion steel pipes under external force. When processing hot-rolled steel products, the thickness and side width of the pipe are not well controlled. Since the thermal expansion and contraction start hot rolling even if the length and thickness are up to standard, there will be a certain negative difference after the final cooling. The wider the width of the negative difference, the thicker the thickness will be more obvious.

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