FEM has been used to simulate and analyze the forming process of rotary-draw pipe bending.
利用有限元计算方法对管材弯曲成形过程进行了模拟分析，并与实验结果进行了比较。
Check the operating condition of electric draw stem and electricity parts. Check the electric hydraulic parts and pipe joints.
定期检查电动推杆及电气部分的运行情况，电液部分的运行情况及管接头处是否有泄漏现象。
The causes of inner transversal crack of cold-draw heavy wall pipe of 45 steel were analyzed.
针对45钢冷拔厚壁管存在内表面横裂纹问题，分析了其产生的原因。
When the material is prepared, each pipe is required to draw its developed map by using mathematics analysis, that is, common coordinate method and triangular method.
蜗壳的每一节，在下料时需要绘制展开图，采用数解法进行展开，即常用的坐标法或三角形法。
The paper investigated the causes of 20g High Force Boiler Pipe. The reason accounted for crack was incorrect draw technology.
对20G高压锅炉管产生裂纹的原因进行了分析，结果表明是冷拔工艺不当所致。
This company has seamless steel pipe perforation unit production line two, cold draw production line six, hot rolling production line with welded steel pipe production line two.
本公司拥有无缝钢管穿孔机组生产线两条，冷拔生产线六条，热轧生产线一条和焊接钢管生产线两条。
The sanitary clearer has the advantage that only the original solid draw rod needs to be substituted by the hollow pipe, and the purpose of water saving can be achieved.
只需将原有的实心拉杆用空心管替代就可达到节水目的。
The exhaust blower can draw away in time oil vapors produced in the wire drawing bin through the exhaust pipe, to avoid deflagration phenomenon, in terms of good safety performance.
本实用新型拉丝仓内产生的油蒸汽通 过排气管被抽风机即时抽走，可以完全避免爆燃现象发生，安全性能好。
Combined to the practical situation, draw up the mix proportion optimization and proper cool water pipe arrangement with hydrated heat control.
结合珠江大桥工程实际情况，制定了优化混凝土配合比和恰当布置冷却水管两个水化热控制方法。
Combined to the practical situation, draw up the mix proportion optimization and proper cool water pipe arrangement with hydrated heat control.
结合珠江大桥工程实际情况，制定了优化混凝土配合比和恰当布置冷却水管两个水化热控制方法。
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