查询词典 puddle welding

Mechanical properties and hardness of the welding joint was tested, and microstructure of welding wire and welding joint were observed via OM, XRD, TEM and SEM. Analysis and explanation in theory were also given.

测试了焊接接头的拉伸力学性能和硬度分布规律，采用金相显微镜、X射线物相分析、透射电子显微镜和扫描电子显微镜观察了焊丝合金和焊接接头不同区域的显微组织结构，并从理论上进行了分析和解释。

The results show that, the coefficients of welded joints are both greater than 0.9, but the yield strength of weld joint filled with Al-Mg-Zr-Sc welding wire is greater 100 MPa than that of filled with Al-Mg-Zr welding wire. It indicates that the Al-Mg-Zr-Sc welding wire is the best alteration of filling materials to weld of Al-Mg-Sc alloy.

但采用Al-Mg-Zr-Sc合金焊丝为填充材料时，焊缝晶粒组织明显细化，熔合区形成的细小等轴晶层提高了基材与焊缝填充材料的结合力，焊接接头的屈服强度比采用Al-Mg-Zr合金焊丝为填充材料时提高了100 MPa，显著提高了Al-Mg-Sc合金焊接构件的许用强度，因此焊接Al-Mg-Sc板材更宜采用Al-Mg-Sc-Zr焊丝。

The invention relates to a method for preventing a top metal layer of packaging chips from fracturing under high temperature, which avoids the fracture of the top metal layer caused by the inter-diffusion of a gold ball, an aluminum welding pad and a top layer metal by introducing a lower metal layer to the joint between the top layer wire and the aluminum welding pad and driving a metal plug to the joint between the top metal layer and the lower metal layer and a metal plug to the joint between the lower metal layer and the aluminum welding pad.

一种防止封装芯片上的顶层金属层在高温下断裂的方法，通过在顶层金属线和铝焊垫之间连接处引入下层金属层，并在顶层金属层和下层金属层之间的连接处以及下层金属层和铝焊垫之间的连接处打金属插塞，避免了因金球、铝焊垫以及顶层金属相互扩散造成的顶层金属层断裂。

The anti-interference design of pipe welding robot is the key of pipe welding process stability,in which the one of main effects is the anti-interference circuit design of pipe welding robot.

在电弧强干扰下，管道焊接机器人抗干扰设计成为管道焊接过程稳定性关键，其中管道焊接机器人抗干扰电路设计是主要影响因素之一。

This plant is a professional enterprise that produces NBC160-630 welding torch, Panasonic, OTC, Binzel, Lincoln, Miller, ESAB, Kemppi, series Wire-welding guns; shield cup, tip, and spare parts of CO2 welding torch. Please visit our web-site in your convenience.

任丘市超迪焊接设备有限公司本公司是多年生产NBC160-630焊枪，松下、OTC、宾采尔、林肯、米勒、伊萨、南斯拉夫、拉丝系列等离子焊枪；电极、割嘴、氩弧焊枪等各种CO2焊枪及配件的专业公司。

With professional production equipment more than 60 sets, including large-scale bending 1200T processing function 15 meters once forming steel, and CNC die-casting machine; high-speed slitting machine; automatically shut submerged arc welding machine; SAW gas welding; welding flaw detection equipment ; plasma cutting machine; All lockstitch; straightening machine; spray production line; large oven; stainless steel production equipment; punch; lathe; planer; drilling, bending and so on.

拥有专业生产设备60多台套，其中1200T大型折弯机能加工一次成型15米钢杆，另有数控压铸机；高速纵剪机；自动收口埋弧焊机；埋弧焊气焊；焊接探伤设备；等离子切割机；合缝机；校直机；喷塑生产线；大型烘箱；不锈钢生产设备；冲床；车床；刨床；钻、弯等设备。

Was founded in the twentieth century the eighties, is the production of CO2 gas shielded welding torch, welding machine, wire feeder, such as welding equipment and accessories business professional.

任丘市志远焊接设备有限公司始建于二十世纪八十年代，是生产CO2气体保护焊枪、焊机、送丝机等焊接设备及配件的专业化企业。

In order to reduce the tendency of hot crack in thin plate welding, a new process named Welding with Trailing Peening is used to prevent the weldments from welding hot crack by experiments and measurements from the view of mechanics.

针对焊接时薄板构件产生焊接热裂纹倾向大的缺点，从力学角度出发，采用随焊锤击的焊接新工艺，并利用试验和测试技术，来达到防止薄板焊接热裂纹的目的，开辟一条解决焊接热裂纹的新途径。

In order to reduce the tendency of hot crack in thin plate welding, a new process named Welding with Trailing Peening is used to prevent the weldments from welding hot crack by experiments and measurements from the view of mechanics. And the fundamental principle of WWTP is discussed.

针对焊接时薄板构件产生焊接热裂纹倾向大的缺点，从力学角度出发，采用随焊锤击的焊接新工艺，并利用试验和测试技术，来达到防止薄板焊接热裂纹的目的，开辟一条解决焊接热裂纹的新途径。

The American Welding Society is proud to be a Co-Sponsor of this major international welding and cutting event, which over the years has become one of Asia's strongest showplaces for viewing welding products and technology.

美国焊接学会作为这一重要焊接与切割活动的协办单位备感骄傲。北京·埃森焊接展多年来已经成为焊接产品与技术在亚洲最重要的展示窗口。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了