91麻豆精品国产91久久久点播时间-91麻豆精品国产91久久久久-91麻豆精品国产91久久久久久-91麻豆精品国产91久久久久久久久-91麻豆精品国产电影-91麻豆精品国产福

Welcome to XX Bearing Technology Co., Ltd
CN|EN
Your location: Home -> Product display -> seam welder
  • Metal roller welding machine
< >

Metal roller welding machine

Roll welding machine is a machine used for roll welding. Roll welding, also known as circular seam welding, is a method of using a pair of roller electrodes instead of cylindrical electrodes for spot welding.

  • Metal roller welding machine
Details


Product Introduction:

Roll welding machine is a machine used for roll welding. Roll welding, also known as circular seam welding, is a method of using a pair of roller electrodes instead of cylindrical electrodes for spot welding. The welded workpiece moves between the roller plates, creating a sealed weld seam with overlapping fusion nuclei to weld the workpiece together. Generally, AC pulse current or amplitude modulation current can be used, and three-phase (single phase) rectification, intermediate frequency, and high-frequency DC current can also be used. Roll welding is widely used in thin plate welding of sealed containers in oil drums, cans, radiator, aircraft and automobile fuel tanks, rockets and missiles. The general welding thickness is within 3mm of the single plate.
Main features:
The weld seam of roll welding consists of one welding point, which can be divided into roll spot welding or airtight seam welding according to different core melting overlaps. The formation process of each solder joint, like spot welding, involves three stages: pressurization, heating melting, and cooling crystallization, but there are significant differences from spot welding. Due to the inevitable phenomenon of shunt, the distribution of current and thermal fields in the welding area has its own characteristics; The rolling disc that transmits pressure and is heated by electricity continuously rotates to change the welding position, so that the distribution of current and heat fields, as well as the crystallization characteristics of the melting zone, are all related to the speed of changing the position.
主站蜘蛛池模板: 丰满人妻啪啪 | 国产极品美女高潮无套在线 | 91精品国产一区二区无码 | av永久无码精品桃花岛知道 | 丰满人妻熟妇乱又伦精品软件 | 国产精品探花在线 | 国产高颜值露脸在 | av喷水高潮喷水在线观看c | 高清国产一区 | av日韩av二区| 国产亚洲视频在线播放大全 | 操人免费视 | 国产成人无码av在线播放不卡 | 国产精品成人av在线不卡 | 国产成人高清亚洲黄片大全 | 99久久精品国产精品亚洲 | 国产狂喷潮在线观看视频应用 | 国产成人综合久久免费精品 | 国产91玉足脚交在线播放 | 国产精品精品国产一区二区 | 国产精品专区一区二区三区久久 | 精品熟人妻一区二区三区四区不卡 | 国产欧美日韩v另类在线播放 | 国产成人无码a区在线观看视 | 911久久精品无码免费看 | 国产成人av综合久久 | 国模丽丽啪啪一区二区 | 国产91精品一区二区麻豆网站 | 国产一区二区久久 | 国产尤物网站尤物在线看 | 国产麻豆精品免费视频 | 动漫成年美女黄漫网站在线观看 | 国产无码精品系列专区 | 国产午夜理论片不卡 | 成人精品免费视频在线观看 | 91户外露出一区二 | 丰满多水的寡妇 | 国产黑色丝袜在线观看片不卡顿 | 国产一区二区电影 | 成年女人色毛片免费看 | 激情航班h版在线观看 |