Under the condition of constant diameter of welding wire and its feeding speed the arc process behavor can be changed by adjusting the inductance of welding circuit as well as the voltage of power supply .
在焊丝直径和送丝速度一定的情况下，通过调节 焊接 回路中的电感量和电源电压，可以改变电弧的过程行为形式。
The entire welding system included main circuit control circuit and wire feed system .
整个系统由主 电路 部分、控制电路部分以及送丝系统组成。
At the two moments when spatter is most easily produced short circuiting between droplet and welding puddle and the liquid bridge exploding welding current is reduced in time by the method of high power element switching the resistance which is in settes connection with the welding circuit .
在熔滴与熔池发生短路及液体小桥爆断这两个最容易产生飞溅的时刻，利用大功率电子开关元件切换焊接回路外串电阻的方法及时降低 焊接 回路中的电流。
It results in fast contact welding for vacuum circuit breakers of a low voltage .
导致低压真空 断路器的快速接触 熔焊。
At first we established an AC small-signal model of welding inverter and designed a digital controller on the basis of analyzing a typic analog welding control circuit .
本文在这部分的研究工作中，首先建立了 弧焊逆变电源的交流小信号模型，并对典型的模拟控制 电路进行了分析。
The Analysis of Welding Flaw on Printed Circuit Board
印刷 电路板 焊接缺陷分析
Resistance spot welding control circuit based on PLD is introduced . The paper focus the introduction on time control principle of welding current . The design idea is original accords with the demands and which is verified on EDA experiment system .
介绍基于PLD可编程逻辑器件的电阻 点焊控制 电路，着重介绍了实现 焊接循环的四个阶段的时间控制原理及焊接电流的控制原理，并且在EDA实验系统上得到了验证。
These features enable the fixture very suitable for circumference welding of circuit breaker rotary shaft parts .
这些特点，使夹具很适宜于 断路器转轴类部件的圆周 焊接。
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。
Therefore it not only can be used as contact material welding electrodes integrated circuit lead frame can also be used as caster mould material .
除了可用作为触头材料、集成 电路引线框架、 点焊电极外，还可做为铸机结晶器材料，是一种具有广泛应用前景的新型材料。
In this paper the cause and mechanism of welding spatter in short circuit transfer CO2 gas shielded arc welding are investigated and the current research and development status in this field is introduced .
阐述了CO2气体保护焊 飞溅的产生原因，介绍了各国在该领域的研究现状，详细分析了现存控制方法在原理上存在的问题，归纳出有效降低 焊接飞溅的关键。
Resistance welder Welding circuit Contact potential Contact resistance ;
电阻焊机； 焊接 回路；接触电位差；接触电阻；
On the basis of modeling and analysis of the voltage and current signal in resistance welding transformer circuit a current zero-crossing derivative ratio method was proposed to calculate the dynamic power factor online .
基于对交流电阻 焊 焊接变压器初级 回路电压、电流信号的建模分析，提出电流过零导数比法测量 电阻 焊动态功率因数。
The Control section of relay is adopted the welding structure of printed circuit board it reduces wiring of control box improves reliability of electric control .
继电器控制部分采用印刷 板 焊接结构，减少了控制箱的接线，提高了电器控制的可靠性。
High reliability of IGBT inverter CO_2 welding power source drive circuit
高可靠性IGBT逆变CO2 焊接电源驱动 电路
The circuit including the main welding circuit shows the interface watch dog circuit sampling circuit trigger synchronous circuit and electromagnetism gas valve etc.
包括 焊接主回路、采样电路、触发电路、同步电路、电磁气阀启动 电路、显示界面以及看门狗等电路。
The defects of big welding spatter and making bad welding seam form obstruct the popularization of CO2 welding short circuit transition .
在 短路过渡的CO2 焊接 过程中其飞溅大、焊缝成形差的缺点阻碍了它的推广应用。
Application of Laser for Welding Technology of Printed Circuit Boards
激光在印 板 焊接工艺研究中的应用
The technology of butt jointing thin plates by CO_2 shielded spot arc welding with short circuit transfer
CO2气体保护焊 短路过渡电弧 点焊对接薄板技术
The Data Measured of Welding Arc Short Circuit Transient Process
焊接电弧 短路过渡过程数据的检测及处理
For arc ultrasonic excitation both the continuous and the pulse signal was separately applied to the test system including a conventional arc welding circuit .
在常规 弧焊 回路中采用了连续波和脉冲敲击式等不同的激励方式获得电弧超声信号。
A Welding Current Controlling Circuit for Preventing Burning Through in Spot Welding of Thin
防止薄板手工电弧点焊烧穿的 焊接电流控制 电路
Then dynamic behavior of liquid bridge has been simulated and analyzed when dynamic model of GMAW welding circuit in short circuit period was associated .
然后结合 焊接 回路的动态模型，对液桥形状动态变化进行仿真计算；
Research on switching automatic welding control circuit
开关式自动 焊控制 电路的研制
Welding reliability of printed circuit boards is discussed main factors effecting welding reliability of PCB arc analysed and specific measures to raise the reliability are proposed .
本文论述了 印制板 焊接可靠性的要求，分析了影响印制板焊接可靠性的主要因素，提出了提高印制板焊接可靠性的具体措施。
The difference between the effective value of current and preset value of current as well as the variation of the difference as two input variables to control and adjust the angle of flow of thyristors that are in the welding main return circuit .
模糊控制器以 焊接 过程 中 焊接电流输入值和输出值的偏差及偏差变化率为输入，以 焊接主 回路中晶闸管调整角为输出。
Design of the Welding Machine Inverter Circuit Based on the Peak Current Mode Control
峰值电流模式逆变 焊机控制 电路的设计
Design of Welding Current Signal Detecting Circuit for Spot Welding Machine
点焊机 焊接电流信号检测 电路的设计
When circuit weld hole is welded on center sills CIR command adopted traditionally to weld circle arc is changed due to narrow welding space . ARC command has substituted for CIR command resolving undercut welding defects existing on circuit weld seam .
在焊接中梁环行塞焊孔时，由于焊接空间的狭小，突破了传统的直接采用CIR命令焊接圆弧的方法，以ARC的命令代替CIR命令，解决了 环行焊缝焊接咬肉的 焊接缺陷问题。
Selection of MCCB in Welding Control Circuit
焊接 电路用塑壳式 断路器的选用
焊接回路