中频逆变式点焊机系列

SYT-MD-40

产品概述

该系列焊机是一夽*的焊接设备。应用广泛，焊接变压器体积小而输出能量大，三相交流电经整流后转换成为直流，再经由IGBT组成的逆变电路逆变成为中频1000HZ方波接入焊接变压器的初级，经焊接变压器降压整流成为脉动很小的直流电供给电极对工件进行焊接。逆变器通过反馈回来初级或者次级焊接电流进行调整IGBT的占空比，从而达到焊接过程恒流的效果。

Description

Medium frequencyinverter spot welding machine is an　advanced　welding　machine　wide　application．The　welding　transformer　is　in　small　size　but　the　output　energy　is　large．Three－phaseＡＣwill　be　converted intoDCafter　being　rectfied。Then theDC will be converted into medium frequency1000Hz square wave tobe connected to　primary　welding　transformer　through　the inverter　circuit　which　is　composed　of　LGBT．The　ＭＦ　square　wave　will　become　small　pulseＤＣto　the　electrode　for　welding　work　Piece　through　the　depressurization　and　rectifying process in the　welding　transformer．The inverter　will　adjust　the duty　ratio of　IGBT　through　the feedback　primary　or　secondary　current so as to achieve current of the welding process．

性能特点

１.   二次焊接回路中流过的电流是直流，因此由于深入焊接工件中不同的次级长度而产生的二次回路中的感抗对焊接电流的影响大大减小。

２.   三相平衡负载，减少对供电系统功率要求，功率因素接近１，无电感分量，无须调整功率因素。

３.   消除对供电电源的污染，属绿色焊接，不必单独提供电源可以和机器人焊接工装控制系统在链接使用。

４.   减少电源消耗，节能降耗，还能减少电缆的需要和花费及大量的维护成本。

５.   焊接变压器的质量大大减轻，轻便快捷，只有交流变压器的质量和体积的１／３，适用于机器人焊接系统。

６.   提高热量输入效率，焊接变压器输出的是直流电压，没有电感的烦扰，纯直流电路没有过零的缺点，热量的效率大大提高。

７.   智能型数字全闭环控制，焊接控制电流更精确，调整精度和监视精度比AC系统高２０倍。可以对逆变器和变压器进行保护。

８.   增加焊接工艺的稳定性，直流焊接的工艺性好，焊接参数的可适应范围宽，次级电流可以真正保持恒流，比交流要有更广泛使用的前景。

９.   数字化控制更加提高电流控制和测量精度，焊接时间精度为毫秒，可以对焊接的时间任意控制。

１０.可以焊接铝和镀锌金属等材料，焊接结果良好。

１１.尤其适合于三层板焊接、非常薄的材料的焊接以及精密焊接的要求。

１２.精密逆变直流电流电阻焊，逆变频率更高，电流控制更精确。

Features

１.   Thecurrent in secondary welding loop is DC.Dramatically reduce the impact to thewelding current due to　the　inductive　reactance　in　secondary　loop　when　conducting　welding　to　the　work　piece．

２.   Three-phase　balanced　load　can reduce the requirement to the power supply system.The power factr isclose to1.No electrical inductance,so no need to adjust the power factor.

３.   Eradicatethe contamination to the power supply. Lt is a kind of environmentally friendlywelding method.No need to provide power independently.lt is able to be usedtogether with robotic welding ssystem.

４.   Reducepower consumption,energy saving.Reduce the requirement of cables and lots ofmaintenance cost.

５.   Theweight of transformer is reduced greatly .lt is light and convenient.The weightａnd size of the MF transformer is only1/3 of theAC type transformer. Suitablefor robot welding system.

６.  lncrease the heat input efficiency.The output of welding transformerisDC voltage,without the disturbance of inductance.Pure DC has no defect ofzero passage.The efficiency of heat is enhanced dramatically.

７.  Lntelligent digital full-closedloop control.The welding control current will be more precise.The adjustmentprecision and monitoring precision is20 times higher than theAC system.Be ableto protect the inverter and transformer.

８.  Lncrease the stability of thewelding technology.DCwelding technology is good and the welding parameters areof wide application.The secondary current could achieve actual constantcurrent.Have betterusing prospect thanAC.

９.  Digitalcontrol can better improve the current control and measurement accuracy.Thewelding time precision is ms which can help you control the welding time atrandom.

１０.        Beable to weld aluminum and galvanized metal with good weling quality.

１１.        Especiallysuitable for welding three-layer metal sheet or very thin material andprecision welding requirement.

１２.        PrecisioninverterDCresistance welding.Higher inverter frequency,more accurate control ofthe current.

适用范围

特别适用于铜、铝、镍、钼、钨、锰、金、银及其他有色金属的精密连接，广 泛的应用于电池厂电光源厂，汽车，科研，光电通讯厂，微型马达厂以及客户要求比较高的高温漆包线/特细漆包线(最小可以达到0.02mm)的贴片电感，线圈，金属线的焊接，镍杯，可伐丝焊接，CCFL方面的焊接，保险丝，灯丝的焊接等。

Application

Especially suitable for　welding　metals　such　as　copper,aluminum，nickel,molybdenum,tungsten,manganese,gold,silver and　other　non ferrous metals and precious metals Precision.Widelyapplied to welding battery,lighting electric resource auto,medicalapparatus and instruments,photoelectric communicaton,micro motor as well asrequested  chip inductor with hightemperature enameled round wire/extra fine　wire（minimum　size　can　be　０.０２mm），wire　rope，metal　wire,nickel　cup,can　cutting　wire　and　welding,ＣＣＦＬfield，fuse，lamp　filament．

Part　of　Welding　Sample