In resistance welding equipment, seam welding is widely used in the manufacturing of joints with specified sealing properties, and sometimes it is also used to weld general non sealing sheet metal parts. The thickness of the welded metal material is usually between 0.1 and 2.5mm.

缝焊机就是指焊件装配成搭接或对接接头并放置于两滚轮电极中间，滚轮电极加压焊件并旋转，连续或断续脉冲送电，形成一条连续焊缝的电阻焊机器。可以说，缝焊机是点焊中的一种演变。

A seam welding machine refers to a resistance welding machine that assembles welded components into overlapping or butt joints and places them between two roller electrodes. The roller electrodes pressurize the welded components and rotate them, continuously or intermittently pulse to form a continuous weld seam. It can be said that seam welding machines are an evolution in spot welding.

电阻焊设备中缝焊的应用

Application of seam welding in resistance welding equipment

缝焊机主控制器选用运动控制器可编程控制器为基础控制模块，依据用户要求，让整个设备具有极强的智能性和柔性，应属性价比和可靠性的控制器。

The main controller of the seam welding machine adopts a motion controller programmable controller as the basic control module. According to user requirements, the entire equipment has strong intelligence and flexibility, and should be a cost-effective and reliable controller.

电阻焊设备的的电极材料、电极形状和外形尺寸，从而使电极良好的冷却，圆锥台形电极头端面被视为是非常好的。端面直径要求是为6～8mm，超出8mm就应该及时开展修磨，且焊接时焊钳上、下电极与板件要尽量保证垂直。

The electrode material, electrode shape, and overall dimensions of resistance welding equipment ensure good cooling of the electrode, and the cone shaped electrode head end face is considered very good. The requirement for the end face diameter is 6-8mm. If it exceeds 8mm, timely grinding should be carried out, and during welding, the upper and lower electrodes of the welding clamp should be kept perpendicular to the plate as much as possible.

电极的外形尺寸扩大时，由于接触面积扩大，电流密度减少，散热效果提高，均使焊接区加热程度减弱，因此熔核外形尺寸减少，使焊点承载能力减少。

When the external size of the electrode is expanded, due to the expansion of the contact area, the current density decreases, and the heat dissipation effect improves, the heating degree of the welding area is weakened, resulting in a decrease in the external size of the molten core and a decrease in the load-bearing capacity of the welding point.

电阻焊设备的电极材料选择

Selection of electrode materials for resistance welding equipment

中频逆变式点凸焊机是目彰的焊接设备其一，用途广泛，焊接变压器体积小而输出能量大。因其焊接变压器频率由现阶段市电的50/60HZ提升到1000HZ,能够很大的减少铁芯材料重量。加上变压器次级回路的整流二极管把电能变为直流电流提供焊机应用，能够大在改进次级回路感应系数值，节约用户电源能耗30%之上。

The medium frequency inverter point projection welding machine is one of the most advanced welding equipment in Muzhang, with a wide range of applications. The welding transformer has a small volume and a large output energy. Due to the increase in the frequency of its welding transformer from 50/60HZ of the current market power to 1000HZ, it can greatly reduce the weight of the iron core material. Adding the rectifier diode in the secondary circuit of the transformer converts electrical energy into direct current for welding machine applications, which can greatly improve the induction coefficient value of the secondary circuit and save more than 30% of user power consumption.

骏腾发致力于电阻焊设备的智能化、自动化，凭借20多年行业经验。在军工、航空、汽车、家电、3C电子等生产制造业中有众多案列。掌握中频点焊机、缝焊机、螺母点焊机、闪光对焊机的技术，选用高质量铜料，导电性能好的部件构成设备。

Juntengfa is committed to the intelligence and automation of resistance welding equipment, with over 20 years of industry experience. There are numerous cases in the production and manufacturing industries such as military industry, aviation, automobiles, home appliances, and 3C electronics. Master the technology of medium frequency spot welding machines, seam welding machines, nut spot welding machines, and flash butt welding machines, select high-quality copper materials and components with good conductivity to form the equipment.