焊接电流

CO2弧焊机器人电弧电压及焊接电流的智能控制

Intelligent control of arc voltage and welding current for co_2 arc welding robot

结果表明：随着焊接电流的增大和焊接时间的延长，W增大，树脂层附近区域硬度提高，B增大；

The results show that W , B and hardness of the area near in-betweenresinous layer increase with elevation of welding current and delay of welding time .

CO2焊接电流波形的模糊控制

The Fuzzy Control of Current Waveform in CO 2 Welding

半自动CO2焊焊接电流的自校正控制

Self-Adjusting Control on Semi-Auto CO_2 Welding Power Source

TIG管焊机焊接电流微机控制系统

Electric Current Auto-control System for Tubes Welding Using TIG Process

采用数字PID的焊接电流DDC系统

Welding Currnt DDC System With Digital PID

焊接电流增加到一定值时，就可消除熄弧和再引弧现象，使工频正弦交流TIG电弧也具有良好的电弧稳定性。

While welding current increase to a threshold the arc will not go out .

在此基础上，采用本系统对熔滴短路过渡CO2气体保护焊的焊接电流和电压波形进行了实时采集、存储。

According to the analysis we can get the result of the welding quality from the current and voltage of the CO_2 gas shield droplet short-circuiting transfer .

Mg烧损率随着焊接电流和脉宽的增加而减少；随着焊接速度和离焦量的增加而增加。

Mg loss rate decreases with the increase of welding current and pulse duration . While it increases with the increase of welding speed and defocusing distance .

焊接电流范围60～350A，用于CO2/MAG气保焊。

The range of welding current for CO_2 / MAG welding is 60-350A .

系统采用积分分离式变参数PID调节器，在焊接电流调节范围内，具有良好的响应速度和调节性能。

The PID adjuster of integration separation mode has been used in this system , which have good responsive speed and adjust property in the range of welding current .

该系统根据CO2焊短路过渡特点，对焊接电流进行较为精确的控制，并给出了该系统实际施焊时的电流电压波形。

According to the character of short-circuit transfer , the welding current was accurately controlled by this system , and the real welding voltage and current waveform was given .

系统硬件主要包括PCI9118HG采集卡和调理电路，它们能较好地采集电弧电压和焊接电流信号，实现控制电路和主电路的隔离。

The PCI_9118HG data acquisition card and signal conditioning circuitry can sample welding arc voltage and welding current very well and insulate control circuitry and main circuitry .

通过及时控制焊接电流大小可以有效克服CO2焊的焊接飞溅大、焊缝成形差、熔深浅的问题。

In this article some popular waveform control methods of CO2 welding including conventional and late-model ones are introduced , and the method based on real-time-adjusted waveform control is focused .

第三部分研究了在氦气作保护气体的情况下，用变极性TIG焊方法焊铝时，焊接电流、电弧电压的变化情况和电弧形态的变化。

The third is , when Al is welded by means of VPTIG method of helium , the changes in current , voltage and arc shape .

介绍了数字信号处理器（DSP）控制CO2焊短路过渡控制系统，DSP软件进行短路波形控制方案和燃弧波形控制的PI算法，给出了软件控制的焊接电流、电压波形。

This article introduces DSP controlled CO 2 welding short-circuit process control system , short-circuit waveform control method and arc waveform control with PI arthmetic , also it gives welding current and voltage waveforms .

在变动焊接电流下检测电弧电压，考察A－TIG焊电弧收缩及活性剂的影响。

The effect of active flux and arc shrinking in A - TIG welding is studied through detecting arc voltage with variant welding current to this paper .

点焊工艺参数的RBF神经网络优化设定模型能够准确的得到最佳焊接电流，进而获得了更好的焊接质量。

Best welding current can accurately be obtained in the spot welding technology parameter optimizational set model on the basis of RBF neural networks and better welding quality can be obtained .

交流脉冲MIG焊其焊缝熔深及焊丝熔化速度不仅与焊接电流有关，而且与负极性比率有关。

Weld penetration and wire melting speed of AC PMIG welding not only have relationship with welding current but also with electrode negative ratio .

结果表明，焊接电流增大时，药芯焊丝的熔滴质量比增大、熔滴细化、平均质量减小；熔滴过渡频率增高，f曲线呈单调上升变化，3种焊丝增长速率大致相同。

The result shows : the droplet mass ratio of flux-cored wire and the frequence of the droplet transfer is increased and the average mass of the droplet is decreased as the welding current goes up .

YK型有线载频式焊接电流遥控技术及遥控器

Welding Current Remote Control Technique Using Carrier Frequency and Type YK of Controller

利用小波分析方法，对所采集的CO2焊接电流、电弧电压和电弧声波进行了信号降噪处理和奇异点分析，提取不同频率范围的声波能量作为表征焊接过程状态变化的特征向量。

Wavelet analysis is utilized on eliminating noises and interpreting zero crossings of welding current , arc voltage and arc sound in CO 2 arc welding process , which are collected by experiment system .

其次，介绍了以焊接电流、电极间电压为输入，相移PWM芯片控制量为输出的点焊质量控制器设计原理。

Secondly , gave an explanation about controller 's design principle which used welding current and voltage between the electrodes for input and output a voltage to control the phase shifting of the PWM .

根据点焊与单片机的特点，探索用双CPU进行点焊恒电流控制，解决利用逐点积分法计算点焊焊接电流有效值占用CPU时间多的难题。

A method of spot welding constant current control is explored which may solve the problem of too much time spent in calculating the virtual value of welding current adopting integral point by point .

借助MATLAB的数值分析平台，模拟了焊接电流对熔滴的尺寸形状及过渡频率的影响，并对熔滴上的主要作用力进行了分析。

Based on the MATLAB numerical analysis platform , we simulate the impact of welding current on droplet shape and size of the transition frequency , in the end , the main forces on the droplet are analyzed .

研制了一种以可编程控制器为核心器件，通过软件方式实现CO2弧焊机器人电弧电压及焊接电流合理匹配的智能控制系统。

Intelligent control system is developed , the core of which is Programmable Logic Controller , in order to keep the reasonable matching of arc voltage and welding current for CO 2 arc welding robot .

以铝合金MIG焊为例，在每种脉冲模式下，分别改善焊接电流、焊接电压、脉冲频率、占空比等参数进行焊接并采集输出电流波形。

Taking MIG welding as example , under each control modes , the welding parameters such as the welding current , welding voltage , pulse frequency , etc.

通过IGBT逆变电源波形控制，实现了对CO2气体保护焊时的焊接电流与电压的控制，从而达到减少飞溅的目的。

Through controlling the wave of IGBT inverter arc welding power source , the welding current and voltage can be controlled and it comes true to decrease CO ( 2 ) arc welding spatter .

本文在近似处理和经验数据的基础上建立了焊接电流控制系统的近似模型，并对不锈钢钢厂目前所采用的单闭环焊接电流PID控制方式进行了分析。

The thesis establishes a similar model of the welding current control system based on the approximate and empirical data , and analyses the conventional single closed-loop PID method which used to control the welding current in most strip plant .

在双丝脉冲MIG焊过程中采用为本试验开发的光电信号测试分析系统实现对焊接电流、电压波形等电信号的采集。

During the welding process , photoelectric signal testing and analyzing system is applied for electric signal sampling such as welding current , voltage waveform and so on .