1) fracture during cold drawing
冷拔断裂
2) Coil Cold Drawing Failure
盘条冷拔断裂
3) Drawing fracture
拉拔断裂
1.
Cause analysis of ER70S -6 wire rod drawing fracture
ER70S-6盘条拉拔断裂原因分析
2.
It is pointed out by microstructure analysis that the net carbides in microstructure of steel is main cause of drawing fracture.
介绍高强度80钢盘条的生产工艺流程和力学性能指标,通过金相组织分析,指出钢的组织中出现网状渗碳体是拉拔断裂的主要原因,采用人工时效并改进拉拔工艺,使各道次的压缩率均匀合理,在一定程度上可以弥补组织不当带来的缺陷,有利于盘条的拉拔。
3.
Such aspects as crack on surface of raw material, ununiformity of surface microstructure, bainite structure, composition segregation, severe inclusion are main cause for drawing fracture of steel wire rod for welding.
原料表面裂纹、表面组织不均、贝氏体组织、成分偏析、夹杂物严重是引起焊接用盘条拉拔断裂的主要原因。
4) cold brittle fracture
冷脆断裂
5) freeze-fracture
冷冻断裂
1.
ObjectiveTo study the changes of the intramembrane protein particles of erythrocyte from Duchenne muscular dystrophy (DMD) patients and the gene carriers and to explore the pathogenesis of DMD and the diagnostic value of erythrocyte freeze-fracture technology.
目的 研究 Duchenne型肌营养不良症 (Duchenne muscular dystrophy,DMD)患者及其基因携带者红细胞膜蛋白颗粒的变化情况 ,探讨 DMD的发病机理以及红细胞冷冻断裂技术的诊断价值。
2.
It was observed that GM3 may enhance the activity of Ca 2+-ATPase in proteoliposomes and increase the diameter of uniform protein particles in sealed-well proteoliposomes vesicles which was evidenced by the negative-staining microscopy and freeze-fracture replica.
经负染、冷冻断裂复型后电镜等形态学方法证实形成的脂酶体囊泡封闭性好 ,脂酶体上Ca2 + ATP酶蛋白颗粒均匀、直径增
6) Lengkou fault
冷口断裂
1.
While regionally the whole tectonic framework of the Yanshan intraplate orogenic belt is oriented in E—W and NNE directions,the tectonic line of the Lengkou fault strikes NW.
冷口断裂在区域上整体构造格架以EW向和NNE向占主导地位的情况下,其构造线方向却为NW向。
补充资料：管材旋转模冷拔
管材旋转模冷拔
cold drawing of tube through revolving die
的主动旋转外模与顶头(或芯棒)之间拔制管材的工艺(见图)采用旋转模拉拔，拉拔的部分变形为滚轧所取代，滚珠或滚柱与管材接触表面之间为滚动摩擦。摩擦系数小，可以降低拔制力。这对薄壁管和低塑性材料的拉拔很有利。但是，旋转模冷拔管材存在以下的缺点:(1)旋转槽内滚珠或滚柱的咬入角较小(镇15。)，睿二瑙 滚珠式旋转模的结构及拔管过程 l一端支持环;2一安装在旋转支持器内的模套; 3一管材;4一芯棒guaneai xuanzhuanmu lengba管材旋转模冷拔(eold arawing of:ub。thro-u只h revolving die)室温下在装有滚珠或渡杜使得每转的减壁量不能取大，一般小于滚珠或滚柱直径的2%;(2)为防止管体表面出现螺旋线，旋转模每转动一次管材的轴向送进量必须很小，对于滚珠组装的旋转模，约为管材周长的2%一4%;(3)模内相互接触的滚珠或滚柱体之间以及它们与模套之间摩擦能耗的比重也很大。由于上述原因，旋转模冷拔管材未能在大生产中广泛应用。 (周忠民)
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