论文部分内容阅读
本文介绍的引弧器,能轻松引燃长约5～10mm的电弧,电流1A,可供特细焊条进行微弧焊接。如将其与普通焊机配置,可将焊机的引弧成功率由30％提高至100％,电弧稳定,即使非专业人员也能轻松作业,称得上是一种“傻瓜”焊机。该装置适于厂家改进产品和自制家电维修用小型焊机。 一、引弧器原理 图l为原理图。功率约30～60W的变压器输出50V左右的空载电压,经整流后从①脚输入到引弧模块YH28,从②脚输出电压不变的直流电。如短路正负极再分开,即可引燃一连续的电弧。如将正负极同普通焊机的正负极并联,那么,在引弧时,即使焊机引弧失败,引弧器也能引燃一小电弧,焊机在这小电弧通道上,会立即形成大的电弧。对任何低劣的焊机进行改进,都可使其引
This article describes the arc starter, can easily ignite about 5 ~ 10mm arc, current 1A, for special welding electrodes for micro-arc welding. When equipped with a common welder, the welder’s arc success rate can be increased from 30% to 100%. Stable arcs make it a “fool” welder even for unskilled personnel. The device is suitable for manufacturers to improve products and home-made appliance repair with a small welder. First, arc starter schematic l schematic. About 30 ~ 60W power transformer output about 50V no-load voltage, after rectification from ① pin input arc starter module YH28, from the ② pin output voltage constant DC. If the short circuit is positive and negative again divided, you can ignite a continuous arc. If the positive and negative with the normal welding machine in parallel, then, when the arc, even if the arc welding fails, arc starter can also ignite a small arc, the arc in this small arc will be Immediately form a large arc. Any poor welding machine can be improved