珠光体

The finite element approach is also used to analyze the influences of the thickness of lamella on the material response.

可作为进一步研究珠光体材料的宏观响应特性、损伤和失效的基础。

The results show that,hardness ofslideway is correlated with content and lamella inferval distance of pearlite.

结果表明，珠光体含量和片层间距是影响导轨硬度的主要因素。

This paper describes the test results of a study on the stability of the compacted graphite oast iron treated by a single addition alloy of Mg-Ti system and discusses the method of obtaining it with high pearlite content.

本文主要叙述镁-钛系复合合金蠕化剂处理蠕墨铸铁稳定性的初步试验研究结果，并探讨高珠光体含量蠕墨铸铁的获得方法。

It was found by experiments thatboron increased the growth rate of pearlite, both in hypoeutectoid and eutectoidsteels.

硼有加速珠光体成长率的作用，无论在亚共析或共析钢中皆有同样的现象产生。

For welding pearlite hot resisting steel which working temperature is below 540℃, like 12CrMoV.

焊接工作温度在540℃以下的珠光体耐热钢（如12CrMoV）。

After adding alloy element Mn and Cu,even cooting rate slower ,can also form more pearlite.

合金元素Mn和Cu的加入，即使冷却速度较慢，也能形成较多的珠光体。

Pearlite obviously occurs in the structure under lower cooling speed(2℃/s).

冷却速度较低( 2℃/ s)时，组织中出现明显的珠光体。

The results show that the interlamellar spacing of pearlite is decreased progressively during the cold drawing.

试验结果表明，随着拉拔变形应变量的增大，珠光体片层间距逐渐减小，钢丝强度随之升高。

Amic stress, e.g. rotor hubs, gearbox housings with integrated rotor bearings, castings of rotor bearing and machine foundations.

轴承的铸件和机械基础等，如果没有其他证书，则不得选择易碎的铸铁珠光体含量高的E

The present paper analyzes causes to the breakdown of the wire rod such as the central shrinkage cavity and carbon segregation, surface transverse cracks, harmful structure of bulky pearlite and web shaped carbonide and puts forward a few relevant measures for improvement in the physical product quality and reduction of fracture rate of the wire rod including proper control of the casting temperature,drawing speed, intensity of secondary cooling as well as adjustment of the intensity of control rolling and accelerated cooling and optimization of the drawing parameters.

通过对中心缩孔和碳偏析、表面横裂纹、粗大珠光体或网状碳化物不良组织等引起断丝原因的分析，提出通过合理控制浇注温度、拉速、二冷强度、控轧控冷强度及拉拔工艺参数等措施，改进盘条实物质量，降低断丝率。关键词 SWRH82B/SAE1080；脆断；质量分析；工艺控制

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。