焊接性

It has high spring and wearability , it is easy to be welded and torc welded .

具有很高的弹性和耐磨性，易于焊接和钎

To evaluate fracture instability, the total sum of stresses due to residual welding or rolling stresses, dead load, and live loads must be considered.

计算断裂失稳性时，必须考虑焊接或轧制残余应力，恒载应力和活载应力之总和。

The results show that with appropriate welding criterion,P/M products exhibit superior weldability.

结果表明，粉末冶金制品在适当的焊接规范下表现出良好的可焊性。

Perform wire surface quality and welding properties inspection, besides perform diffusible hydrogen test.

完成焊丝表面质量检验和焊接工艺性的检查，并做好扩散氢测试工作。

Under torch brazing condition, using brazing filler metals of Cu-based and Ag-based, a series of tests are investigated to braze Ti based cermets and 45 steel, the micrographic structure of joints and shearing test results are analyzed, they show that Ti based cermets has good brazability.

通过观察和分析钎焊接头的结合情况及剪切试验，表明 Ti基金属陶瓷具有较好的钎焊性；火焰钎焊条件下，以 H 6 2为钎料的接头的平均剪切强度为37MPa，以 BAg10 Cu Zn为钎料的接头的剪切强度达 114 MPa，以 BCu Zn Mn为钎料的接头的平均剪切强度为 4 9MP

This observation indicates, after underfill encapsulation, it might be no longer valid to model the PCB as a homogeneous material, instead, local effects on micro-structure and mechanical properties might have to be considered.

该结果说明在充胶倒装焊接研究中，至少在某些情况下，可能必须考虑印刷电路板的结构及力学性能上的不均匀性。

This welding wire not only has the inherent properties of metal powder-cored wire, such as with better welding quality, without slag, highly efficiency and conveniently adjusting the alloying elements etc., but also has the advantage of low hardness in as-welded (less than HRC45), good machinability, high hardness in as-aged (more than HRC55) and better wear resistance with customary working procedure on making or repairing equipments such as rollers when reasonable designing the alloys content. The author adequately makes use of the high-tempering in the required stress relieving working procedure. During this working procedure, which causes the hardness of overlaying metal increased by the reason of austenite changes into tempered martensite and more chiefly what is the precipitation of a lot of carbide by secondary hardening simultaneously. This wire can solve the hard rolled problems of some solid wires with higher alloys while it can get over the conflict of existing overlaying materials what are always possesed high hardness with poor machinability or low hardness, good machinability with poor wear resistance. Further, it also can overcome the intenerating phenomena between welding beads and make the external hardness of overlaying metal uniform. Be sure it could be found important meaning in the overlaying of wear-resistant equipments, such as the precise roller.

该焊丝除了具有金属粉型药芯焊丝焊接质量好、无渣、高效率和合金成分可方便调节等固有的优点外，合理的设计粉芯中的合金成分，按通常工序制造与修复轧辊等设备，充分利用必需的消除应力工序的高温回火，堆焊层金属在奥氏体转变为回火马氏体的同时更主要是通过二次硬化析出了大量碳化物导致硬度增加，使得该焊丝还具有焊态硬度低(小于HRC45)、机加工性能好和时效态硬度高(大于HRC55)、耐磨性能好等优点，解决了某些高合金实芯焊丝轧制困难的问题，同时克服了现行堆焊材料硬度高、加工性能差或者硬度低、加工性能好、耐磨性差的矛盾，并能克服焊道之间的软化现象，使堆焊表面硬度较为均匀，对耐磨件，譬如精轧辊的堆焊具有重要意义。

And we has also accumulated original and mature experience in designing, manufacturing and assembling of bolt tightening system, press riveting and welding system, automobile seatbelt assembling special machine, pin and shaft press installing machine, transplanting machine, aerial material flow line, material flow line, lifting equipment, balance crane, fixture etc.; To meet its clients' demand, Congyu has independently developed many sets of special machine of high technology and great difficulty, which involves the clearance detection, angle control, sealing test, torque control and displacement control etc.

并在螺栓拧紧系统、压铆焊接系统、汽车安全带装配专机、销轴压装机、移栽机、空中物流输送线、物流输送线、提升机、平衡省力装置、各种产品的工装夹具等方面有独到成熟的设计、制造及组装经验；应客户要求独立开发出多套间隙检测，角度控制，密封性检测，扭矩控制，位移控制等高技术、高难度要求专机，在此基础上，不断创新并开发了清洗机等新产品和太阳能新领域，并为太阳能行业开发了自动上下料机、酸碱清洗机和自动插片机，接线盒涂胶机，自动裁切机，测试分选机等一系列生产和测试设备。

Thanks to our technology, highly tested in a great variety of applications, the extrusion line supplies a finished product which, through fully computerized process control, reaches levels of complete uniformity and quality as regards to width, thickness, weight, camber, breaking loads, elongations under load, weld ability and resistance to abrasion.

经过我们技术、高度考验繁多申请挤出了成品供应线，通过全面电脑过程控制、游完全一致的水平和质量至于宽度，厚度，重量，拱破负荷下伸长负荷焊接能力和耐磨性。

ZL117, LF21 and LY16 aluminum alloys were welded using the as-cast rod by TIG welding. The tensile properties, hardness and wear resistance of the wire and welded joint were tested.

以L401为焊料，用TIG对焊LY16、 LF21，堆焊ZL117，分析了对焊接头的硬度、抗拉强度和堆焊层的耐磨性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。