1) tube bending
管弯曲
1.
The numerical control (NC) tube bending process used as a method of thin walled tube bending has been widely applied in fields of aeronautics and astronautics.
数控弯管工艺在航空、航天工业的薄壁管弯曲成形中占有重要地位，但传统的基于经验和试验的工艺设计方法限制了数控弯管工艺优势的发挥。
2) bend
[英][bend] [美][bɛnd]
弯曲，弯头[管]
3) bend
[英][bend] [美][bɛnd]
①弯管，弯头 ②曲，弯
4) casing bend
套管弯曲
1.
To solve the problem, this paper establishes a mechanical model of casing bend to explain the relative slipping and casing bend mechanism for some layer segments.
产层出砂引起的套管弯曲是油田开采不容忽视的问题。
5) tube bending
管材弯曲
1.
Based on lots of tube bending experiments,the stress-strain state along the tangential direction of bending line and the direction of the wall thickness is analyzed.
通过大量管材弯曲试验,分析了沿弯曲线的切向和管壁厚方向的应力应变状态,给出弯管内、外侧管壁厚变化量和切向应变的近似计算公式。
2.
Based on the experiments,the stress-strain state along the tangential direction of outer side of tube bending and the direction of the wall thickness is analyzed and related mean strain calculating formula is also derived.
通过实验,分析了管材弯曲外侧的切向和管壁厚方向的应力应变状态,建立了相应的平均应变计算公式,进一步推导出由管材延伸率和拉伸强度所约束的最小相对弯曲半径计算公式。
3.
This article analyses the state and the distribution of the stress and the strain in the deformed region of steel tube,and then introduces the calculation equation of tube bending moment derived,and also how to apply it to the design of a tube bender.
分析了管材弯曲变形区的应力应变状态及其分布 ,导出了管材弯曲力矩的计算公式 ,并将之应用于弯管机设
6) curved root canal
弯曲根管
1.
Application of hand ProTaper in combination with nikel-titanium alloy k-file in endodontic treatment of curved root canals;
手动ProTaper根管扩大系统联合镍钛K锉在弯曲根管治疗术中的应用
2.
Evaluation of shaping ability of ProTaper NiTi-hand files in simulated curved root canals;
手用ProTaper对弯曲根管成形能力评价的研究
3.
Experimental study of root canal deviation during instrumentation of the curved root canals;
预备弯曲根管时根管偏移的实验研究
补充资料：胶管弯曲试验
分子式：
CAS号：
性质：考查胶管等管形材料弯曲性能的试验。试验时将管形材料按一定的曲率半径弯曲后并保持不变，观察材料弯曲部位缩细等异常变形，还可以测定胶管在达到规定弯曲半径时所需的力。如果进行低温弯曲试验，可考查胶管工作性能保持程度、骨架层的损坏程度及接头在低温下的密封性能等。
CAS号：
性质：考查胶管等管形材料弯曲性能的试验。试验时将管形材料按一定的曲率半径弯曲后并保持不变，观察材料弯曲部位缩细等异常变形，还可以测定胶管在达到规定弯曲半径时所需的力。如果进行低温弯曲试验，可考查胶管工作性能保持程度、骨架层的损坏程度及接头在低温下的密封性能等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条