1、

After normalizing+ tempering twice, all samples are composited of lath tempered martensite and dispersed reverse austenite. The tempered martensite content gradually reduce with the increase of the titanium, and reverse austenite content increase.

试样经过正火+两次回火热处理后,组织由板条回火马氏体和弥散分布的逆变奥氏体组成,回火马氏体随含钛量增加逐渐减少,逆变奥氏体逐渐增加。

互联网摘选

2、

The test results showed that Nb could prevent recrystallization of deformed lath martensite structure at 600~ 680 ℃, and the aged structure was tempered sorbite kept lath martensite phase direction with no ferrite particles discovered.

试验结果得出在600~680℃范围内,Nb能阻止变形马氏体组织的再结晶,时效组织主要为保持板条马氏体位向的回火索氏体,未发现粒状铁素体。

互联网摘选

3、

The microstructures of heat affected zones of T91/ 10CrMo910 are tempered sorbite and thin tempered lath martensite and the toughness is good.

10CrMo910热影响区和T91热影响区的组织分别为索氏体和细的回火马氏体,韧性较好。

互联网摘选

4、

The results revealed that the fracture toughness of specimens shows anisotropism depend on the lamellar orientation, the α 2 phase lath may hinder the extension of crack and make the crack tip blunt.

发现试样的断裂韧性因层片板条取向的不同而呈现各向异性,α2相层片板条对裂纹的扩展具有阻碍作用并使裂尖发生钝化。

互联网摘选

5、

Since the working quality might be greatly affected in turning process due to the quivering of lathe-bed, the requirement of dynamic Characteristics should be satisfied in lathe-bed design.

车削加工中由于车床床身振动而影响加工质量,因此在床身设计中应满足其动态特性。

互联网摘选

6、

We analogy similar lathe-bed structure, and do structural optimization analysis based on analysis data.

类比同类车床床身的结构,并依据有限元分析的数据,对该床身结构进行优化。

互联网摘选

7、

The Structural Optimization of Lathe-Bed Based on Finite Element

基于有限元的车床床身结构优化

互联网摘选

8、

Lathe-bed is an important component of CNC machine tools, and the improvement of its dynamic performance plays a key role in its performance.

床身是数控机床的重要部件,提高床身的动态性能,对发挥整机的各项性能起着关键性的作用。

互联网摘选

9、

The paper establishes the3D finite element model of a lathe-bed and calculates the result of vibration model analysis of it in ANSYS.

本文建立了某型立铣床床身的三维有限元模型,并利用大型有限元分析软件ANSYS进行了模态分析,得出了床身前十阶固有频率和振型。

互联网摘选

10、

This paper builds the three degree model based on drawing paper of this lathe-bed, using the solid building modular component in PRO/ E.

本文依据图纸在三维建模软件PRO/E中,利用零件造型模块建立床身的三维模型。

互联网摘选

11、

The original lathe-bed had a structure of welded steel, which is easy-deformed and have a poor vibration resistance.

原床身结构为焊接结构,焊接结构的变形、残余应力和抗振性差的问题一直未能有效解决。

互联网摘选

13、

Analyzed from the stress angle, the lathe-bed is mainly imposed by a vertically upward force, moreover, the lathe-bed is not slender, so the direction of tangential stress should not be ignored.

从床身的受力角度看来,床身主要受到垂直方向上的力,而且床身不是细长的结构,切应力的方向不能忽略。

互联网摘选

14、

A mechanism involving natural selection of practically movable slip system and continuously turning of laths due to inhibition of lath boundaries to motion of dislocation was proposed.

据此提出板条界面阻碍位错运动导致可动滑移系的自然选择与板条连续转动的机制。

互联网摘选

15、

This paper focuses on the NC grinding of the shaped joint, then presents a design of the CNC special grinding machines based on the CNC lathing-milling center.

结合数控加工的特点,主要探讨了成形联接的数控磨削加工,并提出在车铣中心的基础上改装专用磨床用于成形加工。

互联网摘选

16、

Macroscopic Lattice Deformation Characteristic and its Crystallographic Analysis of Lath Martensite Transformation

板条马氏体的宏观点阵变形特征及其相变晶体学研究

互联网摘选

17、

Effect of Lath Martensite Morphology on the Mechanical Properties of Steel

条状马氏体形态对钢力学性质的影响

互联网摘选

18、

Study on the Machining Process of Virtual Lath

关于虚拟车削加工过程校验的研究

互联网摘选

19、

Numerical-controlled Lath Reference Position and Faults Diagnosis

数控机床回参考点及其故障诊断

互联网摘选

20、

The results show that, the microstructure of the alloy is of lath martensite, with granular carbide dispersed in matrix, the alloy has high strength, toughness and temper resistance.

结果表明:该钢的显微组织为板条马氏体,且基体上弥散分布着粒状碳化物,具有高强韧性、抗回火稳定性;

互联网摘选

  • 今日热词
  • 热门搜索

英语网英语词典(dict.25820.com)为您提供在线翻译英语词典单词大全英译汉汉译英等英语服务!可按单词字数词义分类查询。支持lj:关键词格式查询例句。

用户反馈
请选择反馈类型(可多选):
您的联系方式:
反馈内容:
提交成功 小编会尽快处理
回到顶部
点击反馈