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    流体用无缝管和结构用无缝钢管有什么不同?

    2018-12-07 11:29:59 无锡盛发地坪科技有限公司 阅读

    结构用无缝钢管,此标准适用于一般结构、机械结构用无缝钢管,流体冷拔无缝钢管标准适用于输送流体的一般无缝钢管。流体管与结构管的主要区别是结构用无缝钢管逐根进行液压试验或进行磁粉探伤仪、涡流、漏磁探伤。因此,在压力管道钢管的标准选用上,不宜采用流体无缝钢管的壁厚越厚,它就越具有经济性和实用性,壁厚越薄,它的加工成本就会大幅度的上升;其次、该产品的工艺决定它的局限性能,一般冷拔无缝钢管精度低:壁厚不均匀、管内外表光亮度低、定尺成本高,且内外表还有麻点、黑点不易去除;其三、它的检测及整形必须离线处理。因此它在高压、高强度、机械结构用材方面体现了它的优越性。

    Structural seamless pipe. This standard is applicable to seamless steel pipe for general structure and mechanical structure. Fluid seamless steel pipe standard is applicable to general seamless steel pipe for conveying fluids. The main difference between fluid pipes and structural pipes is that fluid seamless pipes are tested by hydraulic pressure or magnetic particle detector, eddy current and magnetic flux leakage. Therefore, the thicker the wall thickness of the fluid seamless steel pipe is, the more economical and practical it is. The thinner the wall thickness is, the higher the processing cost will be. Secondly, the process of the product determines its limited performance. Generally, the accuracy of the seamless steel pipe is low: the wall thickness is not uniform. The inner and outer surface of the tube has low brightness, high cost of length fixing, and the inner and outer surface has pits and black spots which are not easy to remove. Thirdly, its detection and shaping must be off-line processed. Therefore, it embodies its superiority in high pressure, high strength and mechanical structure materials.

    冷拔冷拔无缝钢管要比热轧冷拔无缝钢管壁均匀,且外壁更光滑美观,热轧冷拔无缝钢管一般比无缝钢管长。冷拔无缝钢管:1、冷拔无缝钢管可做精度高的小批量生。可以用于机械结构、液压设备的尺寸精度高和表面光洁度好的精密冷拔无缝管。2、冷拔无缝钢管性能更优越,金属比较至密可无焊接缝,可承受较大的压力。3、冷拔精密钢管内孔、外壁尺寸有严格的公差及粗糙度。热轧冷拔无缝钢管:1、建筑类的有:底下管道输送最多较多、盖楼时抽取地下水、锅炉热水输送用等。2、机械加工、轴承套、加工机械配件等。3、电气类的:燃气输送、水发电流体管道希望我的回答可以帮助到您。

    Cold-drawn seamless pipe has more uniform wall than hot-rolled seamless pipe, and its outer wall is more smooth and beautiful. Hot-rolled seamless pipe is generally longer than seamless pipe. Cold-drawn seamless steel pipe: 1. Cold-drawn seamless steel pipe can be produced in small batches with high precision. It can be used for precision cold-drawn seamless tubes with high dimensional accuracy and good surface finish of mechanical structure and hydraulic equipment. 2. Cold-drawn seamless steel pipe has better performance, and its metal is more dense than that of welded seam, so it can withstand greater pressure. 3. There are strict tolerances and roughness for inner and outer dimensions of cold-drawn precision steel pipe. Hot-rolled seamless steel pipe: 1. Architectural category: the most Under-ground Pipeline transportation, extraction of groundwater when building, boiler hot water transportation and so on. 2. Machining, bearing sleeve, processing machinery accessories, etc. 3. Electrical: Gas transmission, hydroelectric fluid pipeline, I hope my answer can help you. 



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