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- Weld structure may appear flaw, wear or damage when worked under the complex and rigorous condition for a long time, which eyen lead equipments into waster. 摘要焊接结构在复杂和苛刻的条件下长期工作会出现裂纹、磨损或损坏,严重时甚至导致设备报废。
- These are somewhat different from those of weld structures, which are generally thought to consist of an assemblage of interwoven ferrite laths. 板条或针状片条与非等轴晶共存等多种不同形态,并不象焊接组织那样通常是单一的针状片条束或板条束形态。
- It is demanding to fabricate crane bridge as large welded structure, so the upgrade to change its span is very challenging. 摘要起重机桥架作为大型焊接结构件,制造要求高,其改制具有典型意义。
- The necessary condition in executing the welded structure fatigue life, the basic content and the method are discussed. 摘要讨论了焊接结构疲劳寿命预测的的两个必要条件、基本内容和方法。
- The welding structure of tube-tubeplate on Live and B le d Steam Reheater of Moisture Separator Reheater (MSR) in Nuclear Power Station a re indicated. 总结了岭澳核电站汽水分离再热器(MSR)设备中新、乏蒸换热器管子与管板胀焊连接技术,从机理上阐述了工艺参数选择的原则。
- This paper deals with the CAD expert system in typical welding structure,its design concept and method and its application prospect. 论述了典型焊接结构CAD专家系统的内涵、设计思想和设计方法过程以及应用前景。
- The application of precise welding structure in the gimbals of large-size OE pointing andtracking instrument is described in this paper. 介绍了精密焊接结构在大型光电跟踪瞄准设备中的应用。
- In this paper, experimental studies are made on weldbonding and spot weld structures of a box - type beam in automobile steering room, the results are coordinative with those from numeral analyses. 对汽车驾驶室底盘前横梁的粘接点焊结构进行了对比实验研究,并与数值分析结果作了比较,它们所反映的规律性是基本相同的。
- All-steel welded structure, the integrated treatment (VSR, heat) Elimination of internal stress, a very good rigidity and stability. 全钢焊接结构,综合处理(振动时效、热)消除内应力,有很好的刚性和稳定性。
- The results show that the latter welding method delivers higher load capacity and slightly lower stiffness of main girder, and simpler welded structure and technology. 计算结果表明:加强板在受拉翼缘处空开时,主梁的承载能力比加强板四周均焊时高,且简化了焊接结构与工艺,但主梁刚度比加强板四周均焊时略小。
- The mechanical nature of welded structure fatigue damage is the local stress concentration,and the severity of the stress concentration is depending on the change of stiffness. 焊接结构疲劳破坏的力学本质是局部应力集中,应力集中又是刚度突变所为,从刚度协调的角度分析了应力集中的原因。
- Some metals weld better than others. 有些金属容易焊,有的不容易焊。
- The two halves of the structure didn't marry up. 该结构的两部分未配合好。
- Carbody of type KZ4A electric locomotive is an integrated full-steel welding structure being consisted of underframe,side wall and cab, etc. Four removable roof covers which is composed by aluminium alloy locate on top of the carbody. KZ4A型机车车体是以底架、侧构、司机室等组焊成的全钢焊接结构,顶部是4个可拆卸的铝合金活动顶盖。
- To achieve fatigue life prediction of vehicle welded structure during design phase,practical analysis methods are presented by means of fatigue analysis principle and fatigue performance parameter of welded structure of AAR / BS / IIW standard. 为在设计阶段实现车辆焊接结构的抗疲劳设计,在研究AAR/BS/IIW标准的疲劳算法原理和焊接接头疲劳性能参数的基础上,给出基于AAR/BS/IIW标准进行车辆焊接结构疲劳寿命评估的方法和技术路线。
- It takes speed and skill to weld steel at this heat. 在这样的温度焊钢需要速度和技术。
- High winds put great stress on the structure. 大风作用于该建筑物上而产生巨大的应力。
- It consists of the girders ,trolley and electric equipment etc .The bridge is welded structure of box -type girder ,individual drives are adopted for traveling mechanism on each end of the crane .all movements of the crane are controlled from the cabin . 本起重机由桥架、小车、电气设备等到部分组成,桥架采用箱型双梁焊接结构,大车运行机构采用分别驱动,全部机构均在操场室内操纵。
- The structure had keeled over in the high winds. 那座建筑物让大风给刮倒了。
- The main frame is welded structural steel to which are bolted the channel iron lift support beams. 主要框架是焊接结构钢,其中以螺栓渠道铁升降机来固定横梁。