铝卷 惯例的穿孔针揉捏法揉捏管材的较大外径为600～650mm主动归集，▽较小内径5～15mm转型升级，较小壁厚2～5mm。因为穿孔针的强度与刚性上的原因，ⅵ揉捏拉拔管管材的较小内径与壁厚遭到较大的约束。其间行业运转铝卷，2015-7-2114:30:22软铝合金管材的较小内径与较小壁厚可取上述规模的下限，硬铝合金则取其上限。较近，♂当管材的外径较大时价差增大，管材的较小壁厚
The maximum outer diameter is 600-650 mm, the minimum inner diameter is 5-15 mm, and the minimum wall thickness is 2-5 mm. Because of the strength and rigidity of the piercing needle, the minimum inner diameter and wall thickness of the kneading and kneading drawing pipe are greatly constrained. The minimum inner diameter and wall thickness of soft aluminium alloy pipe can be taken as the lower limit of the above scale, while hard aluminium alloy can be taken as the upper limit during the operation of aluminium coil industry from July 2015 to 2114:30:22. Recently,, when the outer diameter of the pipe is larger, the price difference increases, and the minimum wall thickness of the pipe increases.
惯例的穿孔针揉捏法揉捏管材的较大外径为600～650mm铝卷，㈥较小内径5～15mm，ⅷ铝卷的作用较小壁厚2～5mm。因为穿孔针的强度与刚性上的原因，⑾揉捏拉拔管管材的较小内径与壁厚遭到较大的约束。
Conventional pin kneading method is used to knead the tube with the maximum outer diameter of 600-650 mm aluminium coil, six minimum inner diameter of 5-15 mm, and the minimum wall thickness of aluminium coil of 2-5 mm. Because of the strength and rigidity of the piercing needle, the minimum inner diameter and wall thickness of the kneading and kneading drawing pipe are greatly restricted.
其间需求回升，软铝合金管材的较小内径与较小壁厚可取上述规模的下限，&硬铝合金则取其上限。较近，铝卷出产厂家当管材的外径较大时，管材的较小壁厚通常以不小于管材外径的5%为宜。外径500mm以上的管材多选用反揉捏法成形。
In the meantime, the minimum inner diameter and wall thickness of soft aluminium alloy pipe can be taken as the lower limit of the above scale, while that of hard aluminium alloy pipe can be taken as the upper limit. Recently, when the outer diameter of the tube is large, the minimum wall thickness of the tube is usually not less than 5% of the outer diameter of the tube. Most of the pipes with diameter over 500 mm are formed by reverse kneading.

选用Confrom分流模揉捏，铝卷执行规范可以成形与穿孔针揉捏法相比壁厚薄而均匀、偏心小的管材。但考虑到焊缝质量问题，Ⅰ在同一揉捏设备上所能成形的较大管材外径或用同一揉捏筒所能揉捏的管材外径比穿孔针揉捏法揉捏时要小。
By using Confrom shunt die kneading, the aluminium coil execution specification can form thin, uniform and small eccentricity pipe compared with the pin kneading method. However, considering the quality of weld seam, I. The maximum outside diameter of pipe that can be formed on the same kneading equipment or that can be kneaded with the same kneading cylinder is smaller than that when kneading with a perforating needle.
跟着冷轧管和拉拔管技术的不断改进，回铝合金管的较小壁厚可达0.1～0.2mm或更薄。
Company has learned that with the continuous improvement of cold rolling and drawing technology, the minimum wall thickness of aluminium alloy tubes can reach 0.1-0.2 mm or thinner.
较近在350 MN大型立式揉捏机上(反揉捏)出产揉捏管的较大直径可达l500mm；在196 MN卧式揉捏机上可达l000mm。
Recently, the maximum diameter of kneading tube produced on 350 MN vertical kneading machine (reverse kneading kneading machine) can reach L500 mm, and l000 mm on 196 MN horizontal kneading machine.
揉捏管的较小外径可达5mm。
The minimum outer diameter of kneading pipe can reach 5 mm.
冷轧薄壁管较大直径可达120mm以上，ⅴ较小直径在15mm以下。冷拉薄壁管的直径为3～500mm力气跑办，用旋压法则可轧出直径达3000 mm的薄壁大管。
The maximum diameter of cold-rolled thin-walled tube can be more than 120 mm, and the minimum diameter can be less than 15 mm. The diameter of cold-drawn thin-walled tube is 3-500 mm, and the thin-walled tube with diameter of 3000 mm can be rolled by spinning method.
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