1) six-roll straightener
薄壁钛管
2) thin-wall Titanium castings
薄壁钛铸件
1.
On the basis of physical and chemical process of interface of Titanium/Zirconia ceramics, mechanics of curdle of Zirconia collosol and desiccation of silica sol binder, Zirconia-containing surface coating materials were optimized through experiment, Zirconia shell manufacturing process was developed to produce high quality thin-wall Titanium castings.
型壳中的锆、氧等元素的热扩散而产生了钛铸件的表面污染层,其厚度一般为20-200μm;采用ZrO_2、ZrO_2(CaO)、和ZrO_2(Y_2O_3)面层材料,铸件的反应层厚度依次为2001μm、100μm、50μm,由于氧化钇的加入,降低了氧化锆分解速度及Zr的活性,相应其面层材料稳定性最好,铸件污染层最薄,只有50μm,适合我公司生产薄壁钛铸件面层材料。
3) 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
4) 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。
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 wall casing
薄壁套管
1.
The functions of casing for in-situ leaching of uranium,effects of casing wall thickness on bearing force,advantages and application of thin wall casing are discussed,and the practical suggestions to thin wall casing test and application to be conducted in China are proposed.
集国内外地浸采铀套管应用的经验,讨论了地浸采铀钻孔套管的作用,套管壁厚对套管受力的影响,薄壁套管的优势及应用,并对我国开展薄壁套管的试验与应用提出具体的看法。
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。
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