双金属复合管形成基本原理 |
添加时间:2020/8/13 15:26:34 浏览次数: |
双金属复合管形成基本原理 Basic principle of forming bimetal composite pipe 双金属复合钢管基本原理:外基管负责承压和管道刚性支撑的作用,内衬管承担耐腐蚀、耐磨损等作用。 Basic principle of bimetallic composite steel pipe: outer base pipe is responsible for pressure bearing and pipe rigid support, while inner pipe is responsible for corrosion resistance and wear resistance. 外基管可以根据输送介质的流量和压力要求,选用不同通径和壁厚的碳钢管材。热镀锌钢管、直缝焊管、螺旋管、低中压流体输送用无缝钢管、高压锅炉、石油裂化用无缝管钢管、管线管等。直径一般在φ20-φ1020mm范围,壁厚一般在2.5-50mm范围。 Carbon steel pipes with different diameters and wall thicknesses can be selected for outer base pipes according to the flow and pressure requirements of conveying medium. Hot dip galvanized steel pipe, longitudinal welded pipe, spiral pipe, seamless steel pipe for low and medium pressure fluid transportation, high pressure boiler, seamless steel pipe for petroleum cracking, pipeline pipe, etc. The diameter is generally in the range of φ 20 - φ 1020 mm, and the wall thickness is generally in the range of 2.5-50 mm. 内衬管可以根据输送介质化学成分,选用不同的耐腐蚀合金。可以是奥氏体不锈钢 304、304L、316、316L、铜基合金、镍基合金、哈氏合金、钛、钛合金、双相不锈钢等新型高耐腐蚀合金材料。内衬管壁厚可以根据使用寿命和焊接工艺的要求设计在0.3-5mm左右。 Different corrosion-resistant alloys can be selected for the lining pipe according to the chemical composition of the conveying medium. It can be austenitic stainless steel 304, 304L, 316, 316L, copper base alloy, nickel base alloy, Hastelloy, titanium, titanium alloy, duplex stainless steel and other new high corrosion resistant alloy materials. The wall thickness of lining pipe can be designed about 0.3-5mm according to the service life and welding process requirements. |
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