Thermal cycling is an important factor to determine structure and property of HAZ after welding.
热影响区的热循环是决定焊后热影响区组织和性能的重要因素。
By analyzing the effect of each factor on the welding quality, the optimal spot welding parameters of automobile steel plate can be selected easily.
通过分析各因素对电阻点焊质量的影响，可以方便地得到汽车用钢板电阻点焊的最佳工艺参数。
Thermal focusing is an important factor to influence the quality of laser welding.
热透镜效应是影响激光焊接质量的重要因素之一。
With the self organizing fuzzy unit of self optimizing adjustment factor, the system can keep the current stable, which is set initially by the welding operator.
系统通过具有修正因子自寻优功能的自组织模糊控制器维持所选定的焊接电流不变。
Parameters of butt fusion welding of plastic pressure-pipe are different for varying pipe diameters and ambient conditions, and it is also affected by personal factor.
塑料压力管道热熔对接焊的工艺参数随管道尺寸和环境条件的不同而不同，同时还受人为因素的影响。
The welding seem stress of beam-flange is the major factor which decides the behavior of dog-bone style rigid joint and only the better welding can exert the function of the dog-bone.
梁翼缘处的焊缝强度是决定狗骨式刚性连接节点性能的主要因素，只有具有良好的焊缝质量才能发挥狗骨的作用。
It is pointed out that improving efficiency of welding method has become the main factor of increasing welding efficiency.
指出焊接方法效率的提高成为影响焊接生产效率提高的主要因素。
Through the analysis of the requirements and influence factor in physics and chemical properties and welding, the effective welding method was provided for aluminum and its alloys.
通过对铝及铝合金的理化性能及焊接方面的特殊要求、影响因素、预防措施等几个方面的分析，为此类材料的焊接提供了有效的焊接方法。
The welding quality between the contact and bridge is an important factor that significantly affects the working performance of the product.
触点与触桥的焊接质量是影响其工作性能的重要因素。
Welding temperature is the most important factor which influences the quality of the welded seam in the process of producing ERW pipe.
在高频直缝焊管生产过程中，焊接温度是影响焊缝质量的首要因素。
All sorts of random influence factor for welding quality is contained in the change of current, voltage, electrode displacement, etc. signals.
对于电阻焊过程，影响焊接质量的各种随机因素，均直接或间接地蕴涵在焊接电流、电压、电极位移等信号的动态变化之中。
Compared with the conventional TIG welding machine, this new inverter proves to have much higher efficiency and power factor, less volume and weight, and especially, more precise parameter control.
该焊机由于采用了中频逆变技术，使其效率和功率因数都有较大幅度的提高，不但减小了体积，减轻了重量，而且具有比传统TIG焊机更精密的控制、调节性能等。
The stress distribution and the stress concentration factor in the welding region of tubular TT-joints subjected to axial loads are analyzed using finite element method in this study.
本文首先通过有限元分析得到了轴力作用下的TT管节点在焊接区的应力分布以及应力集中系数。
By analyzing the relation of microstructure, weld zone quality and tensile property, it is concluded that the welding technological parameter of L245 steel is the main factor of the welding crack.
通过分析l 245钢埋弧焊焊缝区质量、微观组织和拉伸性能关系表明，焊接工艺参数的合理制定是低合金钢l 245焊管产生裂纹等缺陷的关键因素。
And it is observed that laser power is the ultimate affection of joint strength, the defocusing amount is the weak influence, and the welding speed between the former affection factor.
进一步分析发现激光功率对接头强度的影响最大，焊接速度的影响仅次于激光功率，离焦量的影响最小。
A method which can increase power factor and decrease energy consumption of common manual ac electric welding machine is presented.
介绍了一种解决普通手工交流电焊机功率因数偏低及耗能严重现象的方法。
This case is a practical guide to resolve as same as stereoscopic dimensions and to determine welding groove or calculation in machinery factor.
对制造厂解决类似空间尺寸和焊缝坡口的确定或计算有现实的指导意义。
The parameters are easy to calculate and could directly reflect the factor that welding position and welding gun orientation affect welding quality.
上述参数不但计算简便，而且可以直接代表焊接位置和焊枪姿态对焊接质量的影响因素。
Results show that suitable welding parameter can reduce occurrence of cracking, but it is not the most important factor.
结果表明：选择合适的焊接参数可减少裂纹的产生，但其作用有限，还不能从根本上消除裂纹。
In this paper, a multifunctional welding machine is designed with the characters of high power factor, soft switching and portable remove.
本文设计了一种适用于中大功率、便携式逆变焊机，具有电源输入侧功率因数高，主功率器件实现软开关等特点。
The prospect of stainless clad plate is promising. And the welding of the stainless clad plate is the key factor in its application.
不锈钢复合板具有广阔的发展前景，焊接技术是其推广应用的关键技术。
Welding is the key factor which restrict the construction speed and quality.
长输管道建设中，焊接是制约施工速度和施工质量的关键环节。
The problem of annual arc welding power source whose output is surge and power factor is lower, is solved by means of main circuit, arc ignition circuit and arc static circuit working together.
通过主回路、引弧电路、稳弧电路的共同作用，解决了一般弧焊电源输出脉动大、功率因数低的缺点。
At last, the fatigue crack in the experiment and the main influential factor of fatigue strength of fillet welding seam was studied.
最后，对疲劳试验中有关裂纹以及影响焊缝疲劳强度的主要原因进行了探讨。
The quality of welding is an important factor that influences steel structure project quality. Nondestructive inspection is an important method which guarantees welding seam quality.
焊接质量是影响钢结构工程质量的重要因素，对焊缝进行无损探伤检验是确保焊缝质量的重要手段。
A novel power-factor corrector topology applicable to the small welding power inverter is proposed. The basic operation principles and design rules are presented in detail.
提出了一种适用于小功率逆变电源的新型功率因数校正电路拓扑方案，分析了其基本工作原理及参数设计要求。
The power factor of PWM are welding power source has been discussed in this paper.
本文讨论了脉宽调制(PWM)逆变式弧焊电源的功率因数。
Weld-shape(butt weld width, size of fillet weld)is an indicator of weld features and it also is an important factor of quality welding.
焊缝尺寸 （如对接焊缝的焊缝宽度、角焊缝的焊角尺寸等 ）是表示焊缝形状特征的指标 ，是影响焊缝质量的重要因素之一。
Weld-shape(butt weld width, size of fillet weld)is an indicator of weld features and it also is an important factor of quality welding.
焊缝尺寸 （如对接焊缝的焊缝宽度、角焊缝的焊角尺寸等 ）是表示焊缝形状特征的指标 ，是影响焊缝质量的重要因素之一。
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