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不锈钢无缝管

不锈钢无缝管

不锈钢无缝管的壁厚度越厚,它的经济性和实用性就越大,壁厚越薄,其处理成本将大大上升。形状:Stainless Steel Rectangle Tube, Stainless Steel Round Seamless Tube, Square Stainless Steel Seamless Tube, Seamless U Tube, etc.

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Description of Stainless Steel Seamless Tube

不锈钢无缝管的壁厚度越厚,它的经济性和实用性就越大,壁厚越薄,其处理成本将大大上升。

规格of Stainless Steel Seamless Pipes

不锈钢无缝管,不锈钢无缝管,中国不锈钢管

等级:201/304/316/409/2205,等等。

Sizes:1/16″ – 16″, or as customers’ request.

壁厚:0.016“ - 0.120”(0.406mm - 3.04mm)或作为客户的要求。

形状:Stainless Steel Rectangle Tube, Stainless Steel Round Seamless Tube, Square Stainless Steel Seamless Tube, Seamless U Tube, etc.

Process flow of Stainless Steel Seamless Tube

Tube Billet-Inspection-Peeling-Inspection-Heating-Piercing-Pickling-Grinding-Lubrication and Air Drying-Welding Head-Cold Drawing-Solution Treatment-Pickling-Pickling Passivation-Inspection-Cold Rolling-Degreasing-Cutting Head -Air drying-internal polishing-external polishing-inspection-marking-finished product packaging

Manufacturing Process of Stainless Steel Seamless Tube

热滚动,冷绘,热扩展

根据不同的生产方法,可以将其分为热卷管,冷卷管,冷绘制管,挤压管等。

  1. 热滚动无缝管通常是在自动管滚动机上生产的。对实心管的表面缺陷进行检查和清洁,切成所需的长度,以管子的穿孔末端为中心,然后发送到加热炉以加热和在打孔机上刺穿。当穿孔继续同时旋转和前进时,在滚筒和插头的作用下,在管片内逐渐形成一个空腔,这称为毛细管。然后发送到自动滚动厂继续滚动。
  2. 如果您想获得尺寸较小,质量更高的不锈钢无缝管,则必须使用两种方法的组合。冷滚动通常在两卷磨机上进行。
  3. The extrusion method is to put the heated tube blank in a closed extrusion cylinder, and the perforated rod and the extrusion rod move together to make the extruded part extrude from the smaller die hole. This method can produce steel pipes with smaller diameters.

如何区分不锈钢焊接管and stainless steel seamless pipe?

  • 首先,检查内部和外表面上是否有焊缝以及是否有突起。

如果遇到尚未表面涂层的钢管,则应首先查看钢管的内部和外表面。

如果您查看钢管的内部和外表面,您可以清楚地看到焊缝,可以直接确定其是焊接管。特定的焊缝外观通常有两类:直缝和螺旋。其中,有两种常见的直焊缝类型:电阻焊接和淹没的电弧焊接。还有单缝和双接缝焊接用于直缝焊接。随着技术的开发,一般的双接缝焊接产品基本上是市场上不可见的。

  • Look at the color and strip of the stainless steel seamless pipe

由于高温加热和在高频焊接管道的生产过程中进行了依据,因此焊接的颜色及其受热区的颜色通常与其他部位不同。通常,它是蓝色的,或者颜色明显更暗,这显然与周围的颜色不同,这是纵向带。

频带分布,宽度基本相同,并且没有明显的深度变化。但是,无缝钢通常没有那么长的带状痕迹。有时,滚动的下填充缺陷(指允许缺陷)也会显示出类似的全向外观,但是在长时间内很难分发填充底漆。并且不能保证宽度和深度是一致的。区分也更容易。

  • 三个查看壁厚的耐度水平和卵形

大多数不锈钢无缝管直接刺穿并从管子空白中滚动。从管毛坯到钢管形成,它是三维复合变形。与二维板滚动相比,其壁厚精度控制要困难得多。

The wall thickness tolerance level of general stainless steel seamless pipes is about ±12.5%, some of the higher levels can reach ±8-10%, and very few can reach about ±5%, and most of these stainless steel seamless tubes are thick-walled pipes. The welded pipe is welded directly from the steel plate or coil made of hot-rolled/thick plate, and its wall thickness quality depends on the thickness control accuracy of the steel plate, which can generally reach within ±0.10mm. Therefore, pipes with high wall thickness accuracy are generally more likely to be stainless steel welded pipes.

Package of Stainless Steel Seamless Tube

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