fine sheaf

The results show that the microstucture of hardening layer lousiest of acicular marten site,retained austenite,graphite in fake and boride.

采用等离子束对硼铸铁进行了表面强化,对等离子强化层的显微组织、显微硬度和耐磨性进行了研究。

The relationship of the hardening layer depth and the processing parameters is investigated.

01振动式电火花表面强化机在CrN i3MoVA钢表面电火花沉积Cr,研究了强化层厚度和工艺参数的关系,结果表明,合理的选择电火花脉冲能量、氩气保护分压、强化时间,能够控制强化层厚度,提高强化层质量。

The principle of the electric spark strengthening technique was utilizing impulse discharge to come into being high temperature,to melt cemented carbide stuff and to seep on the working faces of the tool and moulding cutter and easy wear workpiece,thus to take shape one tier high hardness,high strength,wear-resistant and temperature-resistant cemented carbide strengthened layer that not come off.

电火花强化技术是利用脉冲放电产生高温原理,将硬质合金材料熔渗到工模具及易损件的工作面上,形成一层高硬度、高强度、耐磨和耐温,又不剥离的硬质合金强化层。

The effects of residual stress and microhardness on wear resistance of 40Cr steel strengthened layer by electrical discharge were studied under a large contacting stress,and the wear mechanism of strengthened layer was studied.

分析了在大接触应力的磨损条件下,表面残余应力和硬度对40Cr电火花强化层耐磨性的影响,探讨了其磨损机理。

Temperature dependence of dynamic yield strength and spall strength for LY12 aluminum alloy under shock loading;

冲击加载下LY12铝合金的动态屈服强度和层裂强度与温度的相关性

Influence of pre-stress on spall strength of LY12 aluminum

预应力对LY12铝层裂强度的影响

According to the curve,the spall strength,the thickness of spall scab and the tensile strain rate under different condition were obtained.

根据所得曲线波形计算出相应条件下的层裂强度、层裂片厚度以及各自的应变率,最后得到层裂强度随拉伸应变率变化的关系曲线。

Rational stiffness of outriggers in high-rise structure with strengthened stories

带加强层高层建筑中加强层刚度的合理取值

Research for the Seismic Behavior of the Structural System with Limited Stiffness Outrigger and with Rigid Outrigger;

有限刚度加强层和刚性加强层结构体系的抗震性能研究

Mechanism Analysis on Reduction of Displacement in Highrise Structures by Horizontal Strengthened Story

水平加强层减小高层建筑结构侧移的机理分析

Swing Analysis of Frame-tube Structure with Strengthened Stories Subjected to Lateral Load;

设置多道加强层的高层框—筒结构侧移分析方法

Study of Application of Strengthened Stories in High-rise Building Structures;

水平加强层在高层建筑结构中的应用研究

Influence of Strengthened Story on the Mechanics Behavior of Frame-corewall Structure;

加强层对高层框—筒结构力学行为的影响研究

Structure Analysis and Design Research of Vierendeel Truss Strengthened Story in High-rise Building

高层建筑空腹桁架加强层结构分析与设计研究

PUSH-OVER ANALYSIS OF THE HIGH-RISE FRAME-CORE WALL STRUCTURES WITH STRENGTHENED STOREYS

带水平加强层的高层框架——核心筒结构push-over分析

signal enhancement shallowlayer seismograph

信息增强型浅层地震仪

We intensified our efforts to strengthen democracy at the grass-roots level in rural areas.

农村基层民主建设加强

The adhesive strength of the acid film was stronger than that of the alkali film.

碱性镀层的结合强度优越于酸性镀层。

Research of Double-Layer Dynamic Compaction Replacement Method for Deep Soft Clay;

深层淤泥场地的双层强夯置换法研究

THE MIDDLE-LEVEL LEADERS IN VOCATIONAL HIGH SCHOOLS SHOULD ENHANCE THEIR POWER OF LEADERSHIP;

高职院校中层干部要增强中层领导力

testing method for apparent interlaminar shear strength of carbon fiber reinforced plastics by three point loading method

纤维增强塑料的短梁层间切变强度法

Test method for interlaminar tensile strength of glass fiber reinforced plastic laminates

GB/T4944-1996玻璃纤维增强塑料层合板层间拉伸强度试验方法

Experiment and Study on Bond Strength of Asphalt Concrete Pavement Layers and Bridge Waterproofing Layer

沥青混凝土路面层间黏结强度及桥面防水层黏结强度试验研究

Political power and democracy at the local level in urban and rural areas should be strengthened.

加强基层政权建设和城乡基层民主政治建设。

Evaluation of Interlaminar Shear Strength of Laminates;

层合板复合材料层间剪切强度评价方法的研究