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条状剥落
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  “条状剥落”译为未确定词的双语例句
     The statistical analysis from 200 pairs of failure bearings reveals that proportionally spaced grating flakes and stochastically distributing fatigue flake are two dominating failure forms,which occur primarily on the raceway of the smaller external one of the bearing pair.
     通过对 2 0 0套失效轴承的统计分析发现 ,在轿车每个后轮的一对轴承中 ,早期失效大多发生在外列小轴承 ,主要失效形式为轴承内外圈滚道的等间距分布的严重条状剥落和随机分布的大端疲劳剥落。
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  相似匹配句对
     CRACKING AND SPALLING BEHAVIOR OF THIN OXIDE SCALE
     氧化膜开裂和剥落行为
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     Preparation of Natural Belt-like Glaze
     自然条状釉的研制
短句来源
     Mechanism Discussed on the Spalling Damage of the Tooth Surface
     齿轮剥落损伤的机理探讨
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     Shape and Crystallography of Lath Martensite
     板条状马氏体形态和晶体学
短句来源
     The high temperature wearing was due to the fatigue delamination of the oxide,the lump wear debris were revealed on the precision cast steel,and the bar wear debris on H13 steel.
     高温磨损机理为氧化物疲劳剥落磨损,精铸热锻模具钢磨损磨屑为厚大块状,而H13钢磨损磨屑以条状为主。
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Root development of the intact or excised embryos of Pinus koraiensis Sieb. et Zucc., exhibited discrepant morphological differentiation under experimental condition. That development of the root enclosed in intact megagametophyte grown in the sterile culture medium without sugar, although it showed more rapid elongation, essentially resembled that of the soil-grown seedlings. However, morphological variations existed in the root growth of the excised embryo after one week's culture. It manifested particularly...

Root development of the intact or excised embryos of Pinus koraiensis Sieb. et Zucc., exhibited discrepant morphological differentiation under experimental condition. That development of the root enclosed in intact megagametophyte grown in the sterile culture medium without sugar, although it showed more rapid elongation, essentially resembled that of the soil-grown seedlings. However, morphological variations existed in the root growth of the excised embryo after one week's culture. It manifested particularly in the development of the coleorhiza-like structure. As the root elongated, it first appeared as a reddish mass covering the root cap. Gradually this tissue mass became loosened and separated from the root cap. Finally it was torn and pushed aside by the elongated root. In the further growth of excised embryos, seven to eight layers of loose tissue which arose from the subepidermal cells were developed around the root tip. Later, the surface layer assumed the appearance of rhizoids and was subsequently shed. During further extention of the first root, zonation of the root apex became inconspicuous. The meristem became reduced in extent; only a layer of initial cells existed between the root cap and the hypocotyl. Meanwhile the root cap became reduced to only a few cell layers, some of which eventually degenerated. After six weeks in culture, the meristematic tissues of some of the root apexes eventually became parenchymatous and maturation of short tracheids extended up to 100--200μ from the apex. Ultimately root ceased to elongate and became senile.

离体的与带有雌配子体的紅松(Pinus koraiensis Sieb.et Zucc.)胚胎,在人工培养下,其根部的生长可表現出各种形态解剖上的分化。普通带有雌配子体的成熟胚的下胚軸基部,除了生长特別迅速以外,其余都比較正常,內部的分化大致也与一般自然生长下的松属幼苗相似。但是完全离体的胚胎,在人工培养一星期后,即可显出各种变异,其中胚根鞘的結构表現得特別显著。这种在胚根伸展时多形成紅褐色的一团,复盖在最前端;里面逐漸与根冠分离,外部变为相当疏松。不久在初生根伸长时即被穿破或推向一边。而初生根的前端周围則又由皮层細胞逐漸轉变成7—8层細胞寬的疏松結构层;在其外面不断的成条状剝落。离体胚初生根继續向前伸长时,根端內的分区逐漸变为不明显;分生組織減少,原始细胞成单层細胞,位在下胚軸的基部。同时根端的根冠細胞退化,只剩了几层細胞;有的不久完全消失。培养六星期后,有些根端的分生組織,逐渐轉变为薄壁组織;分散的管胞十分靠近根的前端。最后根端的组织分化衰退而趋向死亡。

The rolling contact fatigue life was measured for low carbon bainitic steel and the high -manganese steel in contact with the steel for rolled wheel at load of 1 960N under oil lubricated condition. The measufed result has shown that the rolling contact fatigue life for the low carbon bainitic steel achieves about 6.143×106 cycle number, and is two times higher than that for the high-manganese steel. A pockmark and strip -like spalling appear at the failure contact surface for the low carbon bainitic steel....

The rolling contact fatigue life was measured for low carbon bainitic steel and the high -manganese steel in contact with the steel for rolled wheel at load of 1 960N under oil lubricated condition. The measufed result has shown that the rolling contact fatigue life for the low carbon bainitic steel achieves about 6.143×106 cycle number, and is two times higher than that for the high-manganese steel. A pockmark and strip -like spalling appear at the failure contact surface for the low carbon bainitic steel. Besides a pockmark and fine spot spalling, however, a coarse pockmark spalling due to casting flaw shows at the failure contact surface for the high-manganese steel. The high ro1ling contact fatigue resistance for the low carbon bainitic steel results from its higher strength. The low strength and the work hardening caused by deformation twin for the high- manganese steel, particularly the casting flaw, lower its rolling contact fatigue resistance.

在1960N试验负荷、无滑差润滑条件下,测定了一种低碳贝氏体钢和铸造高锰钢与碾钢轮钢滚动接触疲劳寿命.测定结果表明,在相同试验条件下低碳贝氏体钢的滚动接触疲劳寿命约为6×106周次,比高锰钢高两倍.低碳贝氏体钢的接触疲劳失效表面出现麻坑剥落和条状剥落;高锰钢接触疲劳失效表面除出现麻坑剥落和细小点状剥落,还出现铸造缺陷引起的粗大麻坑剥落.低碳贝氏体钢的高强度使之有高的滚动接触疲劳寿命.强度低和形变李晶引起的微裂纹,特别是铸造缺陷,导致高锰钢滚动接触疲劳寿命低于低磷贝氏体钢.

To accountforthespecific failure forms of the bearings,a failuremechanism model based on ax- ial traverse amplitude and frequency was put foward through the analysis of the bearing's location condi- tion and the automobile's dynamics.Itincludes the following points:The bearing's to- and- fro traverse in the bearing's house is inevitable because of the axial location clearance among the bearing,the house,and the stabilizing rings,which resultin theadditional axial dynamicloads.The largerthe clearance,thehigh-...

To accountforthespecific failure forms of the bearings,a failuremechanism model based on ax- ial traverse amplitude and frequency was put foward through the analysis of the bearing's location condi- tion and the automobile's dynamics.Itincludes the following points:The bearing's to- and- fro traverse in the bearing's house is inevitable because of the axial location clearance among the bearing,the house,and the stabilizing rings,which resultin theadditional axial dynamicloads.The largerthe clearance,thehigh- er the dynamic loads.When the axial traverse period of the whole bearing is coincided with the revolution period of certain rollercovering circumferential intervals of the rollers,the serious grating flakes will take place with the grating number equal to the roller number.The period difference between axial traverse of the bearing and the circumferential revolution of the rollers will disperse the axial dynamic loads to more flake gratings,resulting in the mild damage of the bearing.The bearing with both large clearance of itself and large axial traverse clearance of the outer ring will suffer from impacting pits on raceway by roller ends.It is suggested that the axial location clearance of bearing outer ring should be minimized provided the assembly reliability can be reached.

通过对 1 1种共 1 30 0个具有不同定位间隙的失效轴承的统计分析发现 ,轴承主要失效形式是滚道表面的等间距栅条状剥落以及局部冲击损伤 .结合对轮毂轴承装配结构及轿车运行过程中的动力学分析 ,提出了基于轴向窜动幅值和轴向窜动频率的失效机理模型 :轴承外圈轴向定位间隙的存在 ,为轴承在座孔内的往复窜动冲击提供了可能条件 ;轴向窜动周期与滚动体转过相邻周向间隔周期的关系 ,决定了滚道表面的周向累积损伤条间隔的密度及其严重程度 .由于车轮轮毂的弯矩作用 ,轴向窜动引起的惯性载荷使滚动体端部在轴承滚道表面造成冲击凹坑 .对于采用卡环定位轮毂轴承 ,在满足可靠装配条件下 ,应尽可能减小轴向的配合间隙

 
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