Welding and testing of the test pieces shall be witnessed by an examiner or an examining body.
试件的焊接和试验应由检验员或检验团体证实。
In charge of Chemical, Mechanical and welding Lab, take the responsibilities of the accuracy of testing data, root cause analysis, administration management.
掌管化学、力学、焊接实验室，负责日常试验结果的正确性、准确性，对异常结果的分析及日常行政管理。
On the basis of digital signal process and nondestructive testing, the effect of welding process on the frequency spectrum of the current signal in AC spot welding is analyzed.
在数字信号处理及无损检测的理论基础上，分析了焊接过程对电流信号频谱的影响。
Testing results show that the major factors affecting the deposition efficiency are the welding current, arc voltage and gas flow rate under the condition of same circuit inductance.
试验结果表明，在回路电感值不变的条件下，焊接电流、电弧电压和气体流量是影响熔敷效率的主要因素。
Renewal of qualification may be made for any process by welding a single test coupon of either plate or pipe, and by testing of that coupon as required by QW-301 and QW-302.
如需重新获得资质，则该焊工需要遵照QW- 301和QW - 302的要求，在一个板材附件试片，或一个管材附件试片上，进行焊接试验。
It includes the testing method, the process and the result of welding procedure qualification.
其中包括焊接工艺评定的试验方法、过程和结果。
It has passed the International General-Purpose "SGS" Testing Approval. It is especially fit for the leadless welding.
并已通过国际通用的“SGS”检测认可，特别适用于无铅焊接。
Services: to undertake OEM orders, plug - in, after welding, assembly and testing process.
服务范围：承接OEM订单、插件、后焊、组装及测试加工。
The paper introduced briefly produce quality control in pressure vessel′s shell and manhole nozzle welding, how avoided crack and found defect by ultrasonic testing after welding.
介绍了压力容器人孔接管与厚壁筒体相焊时，如何控制产品的质量，避免产生裂纹，焊后通过超声波检测及时发现缺陷。
Described are the development target, main technical features and parameters, main structure, finite element calculation results and testing of the 4d-axle welding frame type bogies.
介绍了4d轴焊接构架式转向架的研制目标、主要技术特点和参数、主要结构、有限元计算结果及试验情况。
The company now has a perfect testing methods and line equipment, and has the most advanced CNC bending machine, cutting machine welding stainless steel kitchen equipment of the machinery.
公司现具有完善的检测手段及流水线设备，并具有国内外最先进的数控折弯机、裁板机等焊接不锈钢厨房设备的机械。
A typical signal was found in the position of welding scar of a liquefied petroleum gas (LPG) tank by metal magnetic memory testing (MMMT).
采用磁记忆检测发现液化石油气储罐焊疤部位存在较强的磁记忆信号。
When the imported old equipment needs welding repair, usually there's no material on hand for fully testing.
旧设备在进行焊接修理时，没有必备的材料进行充分试验。
A lot of spectrum of the metal transfer mode of metal gas are welding have been acquired in characteristic spectrum by testing.
通过试验在特征谱线下，采集了大量熔化极气体保护焊五种熔滴过渡的光谱信号波形。
The parameter testing system for the flash welding is introduced, including the technique scheme, the hardware composition and the function design of the software.
介绍了锚链闪光焊参数测试系统的技术方案、硬件组成、软件功能设计。
The design, analysis and testing of the welding current signal detecting circuit for spot welding machine are discussed in this paper.
本文主要论述点焊机焊接电流信号检测电路的设计、分析和测试。
Summarizes manufacture technology of welding and machining for columns and crossbeams by which the fram is made up of CM2 magnetic testing equipment.
介绍CM2磁试验设备主框架立柱、横梁的焊接及机械加工工艺。
Metal magnetic memory(MMM) is one of the most potential non-destructive testing methods which can diagnose welding crack in early stage.
金属磁记忆检测技术是能够对焊接裂纹进行早期诊断的最具有潜力的无损检测方法之一。
A new type of computer-aided testing and analyzing system for welding thermal cycle is presented in this paper. The system adopts computer technology and data processing methods.
采用计算机软、硬件技术和数据处理方法，研究和开发了一种新型焊接热循环测试与分析系统。
The invention discloses an electric arc stud welding waveform testing device and a quality evaluating method thereof.
本发明公开了一种电弧螺柱焊波形检测装置及其质量评价方法。
The concept and technology of welding machine coil temperature testing are introduced in this paper.
本文介绍一种新的电焊机线圈温升检测技术的基本原理。
It makes comparative analysis about parts of GB150 welding connection classified standard and international standard. It also makes improvable Suggestions of pressure containers' testing criterion.
对GB150的部分焊接接头分类标准与国际标准进行了对比分析，提出了压力容器检验标准的改进建议。
The result of testing on site manifests that the effect of spot welding constant current control is good.
实际焊接考核试验结果表明：控制系统具有很好的恒流控制效果。
Manufacture of car and motorcycle moulds including strike mould, plastics filling mould, mould-pressing mould, etc. and clippers welding clipper, testing clipper, etc.
汽车、摩托车模具(含冲模、注塑模、模压模等)夹具(焊装夹具、检验夹具等)制造。
Its pecision isn't effected by wave and iscpeciallysuitable for testing nonlinear load electric performance of arc welding source.
特别适用于弧焊电源等非线性负荷电参数的测试。
The effects of welding time on the property of the joins were researched by using macroscopically mechanical property testing and microcosmic crystalline phase analyses. The reasonable welding …
通过接头宏观力学性能测试和微观金相分析，研究了焊接时间对接头性能的影响，从而得到实心、空心螺柱合理的焊接工艺参数。
Automatic winding machines, spot welding machine automatic riveting, automatic ultrasonic testing machine, automatic production lines, industrial robots, robot line automatic production line.
全自动绕线机、全自动氩弧焊、自动铆接点焊机、自动超声波测试机、全自动生产线、工业机器人、机器人自动生产线线。
Compared the welding residual stress with testing data, the both accord each other, and high temperature temper reduce the peak value of welding residual stress effectively.
将计算得到的残余应力分布与实测的残余应力数据进行比较，两者符合较好，而且高温回火有效的降低了焊接残余应力的峰值。
The mechanical testing results showed that tensile strengths of samples welded by direct welding is only 31.24% of that of the parent metal, and 50.89% of that by "in-situ" welding.
力学性能试验结果表明，不加填充材料焊接时，试样拉伸强度仅为母材强度的31.24%；进行原位焊接时，试样强度达到母材强度的50.89%。
The mechanical testing results showed that tensile strengths of samples welded by direct welding is only 31.24% of that of the parent metal, and 50.89% of that by "in-situ" welding.
力学性能试验结果表明，不加填充材料焊接时，试样拉伸强度仅为母材强度的31.24%；进行原位焊接时，试样强度达到母材强度的50.89%。
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