查询词典 welded

It is a new method to increasing fatigue strength of welded joints and structure by peening welded toes with ultrasonic peening equipment.

摘 要：使用超声波冲击焊趾来提高焊接接头及结构的疲劳强度，是国际上刚刚出现的一种新方法。

The thin welded pipe is also advantageous in resistance to cracking caused by accumulation of strains introduced during roll-forming, swaging both ends of the welded pipe and hydraulic expansion.

薄的焊接管还有利于在滚轧成型、锻压焊接管的两端和液压膨胀过程中抑制由于导入应变的积聚而产生的破裂。

The mechanical effect of the crack initiation and propagation under a residual stress field is analyzed, and then the residual stress redistribution because of cracking in the welded residual stress field in a plate butt welded joint is successfully calculated by means of the elasto-plastic finite element method .

分析了在残余应力场中裂纹产生和扩展所引起的力学效应，并成功地运用弹塑性有限元方法计算了平板对接接头焊接残余应力场中裂纹扩展引起残余应力的变化。

Results show that the servic.e life of TiB2/Cu electrode with a TiB2 content of 1.5 wt% reaches 7700 weld spots, which is 4 to 8 times that of Cr-Zr-Cu electrode materials when coated steel sheets are spot welded; the service life of the composite electrode reaches 30000 weld spots, 2 to 3 times that of Cr-Zr-Cu electrode materials when conventional carbon steel sheets are spot welded.

对 T i B2增强铜基复合材料作点焊电极点焊镀层钢板时的失效进行了分析，结果表明：含TiB2为1.5wt％的铜基复合材料作电极，焊接镀锌钢板的使用寿命约为7700点，是普通电极材料Cr－Zr－Cu的4～8倍，焊接普通钢板的使用寿命约为30000点，是普通电极材料Cr－Zr－Cu的2～3倍。

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。

The main products are: coal mine mesh network equipment hook-diamond-shaped flower-ginning net-net-net mine Jingwei deduction silk-screen machine gill-net-blade machine welded wire mesh gill nets of welded steel ball cleaning machine-woven nets Metal mesh weaving machines hexagonal heavy machine-hexagonal stone cage of high-speed network for block-screen machines for blocking machinery and related products, and so on screen.

主要产品有：煤矿丝网设备勾花网机菱形网机轧花网机经纬网机矿筛网机扣丝机刺网机刀片刺网机电焊网机钢筋焊接网机清洁球机织网机金属丝网编织机六角网机重型六角网机石笼网机高速护拦网机护拦网机丝网机械及丝网相关产品等等。

1 Laid on the observation points, the next gate in the first paragraph and the chamber are in side-dock-type pier and construction of a wide bottom seam laid 8 to each end of the settlement within 24 observation points nails; chamber 14 Fu wall segments are in lock wall at both ends of the floor laid four nails into account the settlement of 56 observation points; settlement nail making use of 40cmФ18 rebar welded copper top round hat hemisphere processed, buried, when coupled with oblique bars welded to the end of plate surface layer and vertical reinforcement, the top highlight the concrete surface, about 1.5 ~ 2.0cm in order to guarantee points are solid.

3.2.1观测点的布设上、下闸首及闸室坞式段均在边墩底板及施工宽缝的两端各布设8个沉降钉计24个观测点；闸室14节扶壁段均在闸墙底板两端各布设4个沉降钉计56个观测点；沉降钉的制作采用40cmФ18螺纹钢顶端焊接镀铜半球圆帽加工而成，埋设时配以斜筋焊接在底板面层及竖向钢筋上，顶端突出砼表面1.5～2.0cm左右，以保证点位稳固。

A layer of strip steel was found abrasion-welded to the surface of the spalled fragment and a 0.06mm thin layer of untempered martensitic structure was observed on the surface of the roll just beneath the welded strip.

在剥落块的表面上粘结着带钢，在带钢下的轧辊表面上观察到一层厚度约0.06mm未经回火的马氏体组织，此层下面还有一个具有低硬度的回火马氏体区域，晶间显微裂纹就从此两区域之间发生，然后垂直地向里向外扩展。

Is recommended.8.2 The weld bonds of changed outlet pipes of Huaneng ShanhaiShidongkou Second 8.2 The weld bonds of changed outlet pipes of Huaneng ShanhaiShidongkou SecondPower Plant high temperature reheaters which were welded with thPower Plant high temperature reheaters which were welded with th e qualified e qualifiedprocedures all meet the requirements.

焊后为改善焊接接头性能，建议采用750 ±10℃温度进行焊后热处理。750 ±10℃温度进行焊后热处理。8.2 根据所评定的焊接工艺进行焊接，华能上海石洞口第二电厂高温再热器出口段管子更8.2 根据所评定的焊接工艺进行焊接，华能上海石洞口第二电厂高温再热器出口段管子更换焊口经检查均符合要求。

Group companies responsible for water, electricity, gas supply, foreign Forwarders Electrical engineering, plumbing engineering, Die with, cold-formed and welded pipe mill roll forming production, welded pipe mill, cold-formed units, strip slitting unit and other non - Design and manufacture of standard equipment.

公司除负责集团公司水、电、汽供应外，对外承揽机电工程、水暖工程、冷冲模具、冷弯及焊管机组成型轧辊制作、焊管机组、冷弯机组、带钢纵剪机组等非标设备的设计制作。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐