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1·The article introduces forming roller pass design principle, design process and calculating formula of each layer former roller parameter in ellipse pipe rolled by turks-head roll.

介绍了采用土耳其头轧制椭圆管的成型辊孔型设计原则、设计步骤以及各架次成型辊参数的计算公式。

2·This article has described the function of the screw-down device of the three roll pipe mill, meanwhile the control technology for the screw-down device adjustment has been analyzed as well.

介绍了三辊轧管机压下装置的功能，并对压下装置调整的控制技术进行了分析。

3·Simultaneously, round steel ingots which are used to produce pipes with large diameters and thick walls are provided without modifying roll shapes of rolling pipe piercers.

同时既能提供生产大口径、厚壁管所需的圆钢锭，又不需要对轧 管穿孔机的辊型进行修改。

4·The paper analyzed the causes of roll displacement on mini-stretch reducing mill and the influences of displacement on external-surface quality of steel pipe.

分析了微张力减径机轧辊位移的产生原因以及对钢管外表面质量的影响。

5·Result showed that main reasons on ablation of roll bearing were transformation of forward Angle, flow value of cool water, water pressure, water pipe position, and deformation of roll-shell et al.

对造成轧辊烧轴承的原因进行了分析，结果表明：轧辊烧轴承主要与轧辊送进角的变化，冷却水的水量、水压及水管位置，轧辊架变形情况等有关。

6·The product quality and further processing are affected by the curvature of seamless steel pipe caused during rolling through the three-roll size reducing mill.

无缝钢管经过三辊定减径机轧制生产工序后，有时会产生弯曲，影响产品质量和深加工。

7·The setting parameters of the three-roll bending plate internally -sup porting spiral welded pipe mill are critical for ensuring satisfactory and consistent quality of the welded pipe formation.

三辊弯板内承式螺旋焊管机组调型参数是保证焊管成型质量及其稳定性的一个重要因素。

8·When an explosion RIPS, the tanks roll, or the pipe organs rumble, it's your subwoofer that makes the difference between good sound, and sound you can feel too.

当有爆炸场景，坦克碾过，或者管风琴低沉的声音，你的低音炮让你的影院显得更不一样，让你的身体也能感受的到。

9·Cold-roll void forming sheet is an important product in cold-roll forming sheet, which usually includes pipe, square tube, rectangle tube and unusual tube made by special requirements.

冷弯空心型钢是冷弯型钢中的一类重要产品，其通常包括圆管、方、矩形管以及按照特殊要求制作的异形管。

10·According to double radius method and edge bend method, this paper introduces the design theory of roll pass with opposite direction bend in middle part for cold forming of round pipe.

本文在双半径法和边缘弯曲法的基础上，介绍了一种冷弯圆管的中部反向弯曲孔型设计理论。