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
  • Automatic roller welding machine
< >

Automatic 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.

  • Automatic 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.
洛川县| 五寨县| 云安县| 淮安市| 新干县| 荆门市| 炎陵县| 江陵县| 连云港市| 南开区| 佛冈县| 北京市| 怀化市| 绿春县| 禄丰县| 金堂县| 乌海市| 西和县| 渭南市| 广元市| 阜康市| 蛟河市| 罗江县| 中卫市| 平原县| 民权县| 尼木县| 思茅市| 喜德县| 千阳县| 夹江县| 稻城县| 宣化县| 吐鲁番市| 清水河县| 磐石市| 拉萨市| 张家港市| 龙门县| 张北县| 五台县|