1) thin-walled tube
薄壁管
1.
Experimental study on role of mandrel in thin-walled tube NC bending process with small bending radius;
薄壁管小弯曲半径数控绕弯成形芯模效用的实验研究
2.
Experimental study on thinning of thin-walled tube NC bending process with small bending radius;
薄壁管小弯曲半径数控弯曲壁厚减薄实验研究
3.
Experimental study on cross-section ovalization of thin-walled tube in NC bending process;
薄壁管数控弯曲截面畸变的实验研究
2) Thin wall tube
薄壁管
1.
A kind of rolling process,in which the three-rolls machine was adopted to roll PdY alloy thin wall tube,was studied.
介绍了采用三辊轧管机冷轧PdY合金薄壁管的工艺 ,分析和找出了轧制时管材易出现开裂的原因 ,发现管材壁厚 (W)与其平均直径 (D)之比越小 ,相对壁厚越薄越易开裂。
2.
In this paper,thin wall tube initial yield under the pressure of hydraulic pressure,axial pressure,is discussed,the calculate formulae of initial deformation force is derived and experimental verification has been finished.
本文就有限长薄壁管在内压、轴力作用下的初始屈服问题进行了研究 ,推导出了初始力计算公式 ,并进行了实验验
3) thin-wall pipe
薄壁管
1.
The influencing factors of non-uniform wall thickness of thin-wall pipe with D/S>9 rolled by three-high pipe mill are simply analyzed, and appropriate measures are put forward to reduce non-uniform wall thickness.
简要分析了三辊轧管机组在生产Ｄ／Ｓ＞９薄壁管时壁厚不均的影响因素，提出了减少壁厚不均应采取的相应措施。
2.
Carbon fiber composite thin-wall pipe of 60 mm inside, 74 mm outside and 80 mm long is regarded as the research object in the paper, with which some static axial compression experiments are done respectively for different resin content, different ratio of ring /vertical spreading and different end structure.
以内径60mm、外径74mm、长度80mm的碳纤维复合材料薄壁管为对象,对不同树脂含量、不同环/纵向铺层比、不同端部结构的薄壁管分别进行静态轴向压缩试验,并研究了不同树脂基体对薄壁管静态轴向压缩强度的影响。
3.
The punching technology of thin-wall pipe with arc-shaped end and the problem of fracture are described.
分析薄壁管端头弧口冲切工艺及冲切中的断裂问题,利用商业化有限元程序DEFORM-3D对薄壁管端头弧口冲切工艺过程进行了模拟,材料断裂破坏采用Norm alizedCockroft-Latham断裂准则,模拟分析了管壁塌陷与凸模α角,θ角和管材壁厚的变化关系,最后指出了模拟要注意的一些问题。
4) Thin wall pipe
薄壁管
1.
6 thin wall pipe,especially PE100 SDR17.
6薄壁管尤其是PE100 SDR17。
2.
The paper explains the disadvantages of hollow flat plate slabs using thin wall pipes as the filling members embedded in the plate.
指出了在空心无梁楼盖中采用薄壁管作为填充构件的不足之处,分析了无梁楼盖与双向板在传力机制与受力变形上的差异,阐述了南京东苑大厦中采用薄壁盒作为填充构件的无柱帽空心无梁楼盖的结构设计与施工要
5) thin-walled tubes
薄壁管
1.
Using numerical simulation method of FE,the rule of variation of axial feed rate and the rule of the workpiece forming are obtained under the varions rotational velocity of cavity die for the thin-walled tubes in ball spinning.
通过有限元数值模拟方法得出滚珠旋压中薄壁管在不同凹模旋转速度条件下轴向进给比的变化规律及工件的成形规律,并对模拟结果的等效应变分布做了分析,并与实验结果进行比较,给出薄壁管滚珠旋压时进给比的选取范围。
6) thin-walled steel tube
薄壁钢管
1.
This paper summarizes the research work on some new kinds of concrete-filled steel tubes, with an emphasis on concrete filled thin-walled steel tubes, steel tubular columns filled with high-performance concrete and concrete filled double-skin steel tubes.
近年来作者对薄壁钢管混凝土、钢管高性能混凝土和中空夹层钢管混凝土等新型钢管混凝土结构进行了研究,并取得初步成果。
补充资料：超薄壁管生产
超薄壁管生产
production of ultrathin-wall tube
ehaobaobiguan shengehan超薄壁管生产(produetion of ultrathin一walltube)超薄壁管是指直径与壁厚之比在100以上的管材。超薄壁管主要用作弹性元件波纹管的坯料或换热管坯料等。它的生产方法有冷轧、冷拔和旋压等方法。札制法一般生产率较高，尺寸精度高，表面质量好，广为采用。 1954年苏联研制的多辊式冷轧管机适于轧制超薄壁管，在这种轧机上，可以轧制最小壁厚0.03mm的管材。 在多辊冷轧管机上轧制超薄壁管的关键有3点:(l)减径量不能过大，LD一30一般小于lmm，LD一15小于0.smm;(2)轧辊开口角不能过大，否则会出现轧出的管子呈竹节状;如果开口角过小，会出现棱面，影响管子精度;(3)轧制成品道次管材不能过硬，即在成品前道次应该退火。 用冷拔管法生产超薄壁管时，一般均采用超声波振动(见超声波振动拔管)，无超声波振动拔管生产的管子直径与壁厚之比不超过50，而带超声波振动时可达500。 (邢维基李连诗)
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