共查询到19条相似文献,搜索用时 125 毫秒
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等离子弧-MIG/MAG复合热源焊接技术是将等离子弧与MIG/MAG电弧有机复合形成的一种高效优质、低成本的焊接新技术.一体化的焊枪及等离子电源可以与目前常用的MIG/MAG电源简单组合,使该技术具有广泛的应用前景.介绍了等离子-MIG/MAG复合热源焊接技术的技术原理、工艺与装备特点及其工业应用. 相似文献
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综述了国内高强度钢船体用焊接材料的使用要求、现状及发展趋势.国内高强度钢船体用焊接材料的工艺焊接性与使用焊接性的要求极高,尤其是抗裂性与低温韧性.国内高强度钢船体焊接目前仍然以手工焊接为主,高效率焊接材料的应用还不普遍,且存在焊接材料的含氢量尚不能有效控制及低温韧性水平不高等问题.中国高强度钢船体焊接材料的发展趋势是实现船体优质、高效与低成本化焊接.其中,药芯焊丝MAG焊与MIG焊、实心焊丝脉冲MIG焊及超低碳贝氏体焊接材料将得到发展. 相似文献
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自从100年以前药皮焊条问世以来,人们还发明了几种其它焊接防法,如埋弧焊、TIG焊、MIG/MAG焊、等离子弧切割及药芯焊丝电弧焊.接下来我们还能期待什么?机械连接技术或结构粘接对这些传统的焊接技术会构成威胁吗? 相似文献
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变极性 MIG/MAG焊工艺及应用 总被引:2,自引:1,他引:1
变极性MIG/MAC焊工艺又称CP(Cold Process)冷焊工艺,主要用于0.2~2 mm的薄板(钢、不锈钢、铝、镀层板、异种金属)和有磁材料的焊接,可以手工焊和自动焊.该方法显著地提高了焊接速度,减少了对母材的热影响和焊接变形.论文介绍了变极性MIG/MAG焊工艺的波形设计、熔滴过渡以及实际应用. 相似文献
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最新开发的ZDM7-400场效应管逆变式焊接电源,具有微机控制,参数预置,单旋纽一元化调节专家控制系统,可任意调节脉冲和非脉冲参数和多种特性输出多用途等功能.适用于CO_2气体保护焊、MIO/MAG焊、脉冲MIG/MAG焊、TIG焊和手工电弧焊。 相似文献
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EWM coldArc“冷弧焊”——一种低能量的熔化极气体保护焊技术及其应用 总被引:2,自引:1,他引:1
介绍了EWM coldArc"冷弧焊"技术,该焊接电弧是在熔化极气体保护电弧焊中短路过渡电弧基础上的一种创新.通过对焊接过程中电弧电压和电流进行精确的控制和凋节.使电弧稳定,同时义能显著地降低电弧能量.焊接中工件的受热少,变形小,在薄板焊接,电弧钎焊,异种材料焊接和厚板打底焊等应用中提高了MIG/MAG的焊接质量,扩展了MIG/MAG的应用范围. 相似文献
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超薄板MIG/MAG焊--CMT冷金属过渡技术 总被引:5,自引:0,他引:5
Fronius公司CMT(Cold Metal Transfer)冷金属过渡技术是在MIG/MAG焊基础上开发的一种革新技术.第一次将送丝运动与熔漓过渡过程进行数字化协调。当焊机的DSP处理器监测到一个熔滴短路信号。就会反馈给送丝机构,并回抽焊丝帮助溶滴脱落。使熔滴过渡在几乎无电流的状态下进行。整个焊接过程实现“热-冷-热”交替转换,每秒钟转换达70次。焊接热输入量大幅降低。实现0.3mm以上薄板的无飞溅、离质量MIG/MAG熔焊和MIG钎焊。更值得一提的是使用此种工艺还可进行只有激光和电了束才可实现的钢与铝的异种焊接。 相似文献
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Régis Henrique Gonçalves Silva Jair Carlos Dutra Raul Gohr Jr. 《Welding International》2013,27(2):141-149
The second part of this series deals with the metal transfer modes of most interest to the MIG/MAG process, regarding the development of the controlled short-circuiting MIG/MAG welding process (CCC). The primary intention is to study pulsed arc and short-circuiting arc welding, both of which are the basis for the CCC. Also in relation to the metal transfer dynamics, the drop formation and the forces acting on it are reviewed. To provide a more complete understanding, aspects regarding shielding gases are described, including economic issues. Since they are important characteristics for any weld, information concerning short-circuiting MIG/MAG welding penetration and heat input are also provided. 相似文献
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Andre Alves de Resende Valtair Antonio Ferraresi Americo Scotti Jair Carlos Dutra 《Welding International》2013,27(12):910-916
One of the versions of the plasma–metal inert gas (MIG) process is basically a combination of a plasma arc with a MIG/metal active gas (MAG) arc in a single torch. With this association, the advantages of each arc are combined. The main characteristic of this is the independence between the heat input by the process and the deposited material, resulting in greater facility to control bead weld geometry. In the current literature, there is a shortage of information related to the process, and most of this goes back to the 1970s and 1980s when the technology available was not able to make the process viable for industry. However, in recent years, the use of the diffusion of new electronic power sources used in welding has sparked up again the interest in plasma–MIG process. In this context, this paper aims to contribute to the studies related to the influence of the MIG and plasma current balance on the geometry of the bead weld and wire fusion rate. Bead-on-plate welds were carried out with plasma and MIG/MAG current combinations at three levels each, keeping, by welding speed corrections, the bead volume the same. It was observed that the introduction of the plasma current over the MIG/MAG current reduces penetration and dilution and leads to convex beads. On the other hand, the use of plasma current increases the MIG/MAG wire fusion rate. However, it seems that the intensity of the plasma current is not the governing parameter of those changes. 相似文献