国产精品爽爽ⅴa在线观看,免费中国大但人文艺术在线观看 ,午夜精品久久久久久久久,欧美人与动牲交zozo

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

Rolling welding machine factory

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.

  • Rolling welding machine factory
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.
禄丰县| 尉氏县| 惠水县| 于田县| 离岛区| 任丘市| 桐梓县| 唐山市| 麻栗坡县| 吉木萨尔县| 通渭县| 边坝县| 沭阳县| 建湖县| 哈密市| 海盐县| 堆龙德庆县| 宁陵县| 阳西县| 日照市| 高安市| 云浮市| 长白| 广水市| 石楼县| 武安市| 滨州市| 普安县| 德格县| 西城区| 荣昌县| 丹棱县| 平谷区| 铜梁县| 桂阳县| 大名县| 无锡市| 西昌市| 肇州县| 互助| 博客|