亚洲日日精AV无码区A片_亚洲区高清_4455国产精品视频_亚洲男人天堂一区_未满十八18禁止午夜免费_777爽死你无码免费看一二区

Welcome to Aigre?

more>>Industry Overview

Technology Center

Factors Affecting the Rail Welding Quality
發布時間:2018-12-26瀏覽次數:3638


When welding rail tracks, the perpendicularity of the rail ends is the primary factor in achieving a quality joint. The contact surface between the rail and the electrode is a critical factor. The voltage of the generator is also one of the influencing factors; the water temperature of the chiller and the cooling degree of the welding machine's head also affect stability; the temperature of the rail to be welded also impacts welding quality. The oil pressure of the oil pump and the welding head is also an influencing factor, and the stability of 4DA and 4AD will also have an impact.  

If the welding quality changes, you should pay attention to these factors.


主站蜘蛛池模板: 91免费| 在线亚洲欧美日韩精品专区 | 神马久久久久久 | 日韩成人综合网 | 麻豆911传媒 | 精品国产一区二区三区四区在线看 | 亚洲国产福利在线 | 麻豆传媒在线播放 | 色先锋av资源中文字幕 | 国产三区四区五区在线播放 | 日本亲子薍伦在线观看 | 日韩亚洲一区二区 | 60—70sexvideos老少配 | 人妻AV无码一区二区三区 | 性av盈盈无码天堂 | 亚洲成色777777女色窝 | 国产区精品在线 | 床震吃胸膜奶免费视频 | 中文字幕日产熟女乱码 | 伸进她的小内裤疯狂揉摸小说 | 久久久观看| 日本一区二区三区四区在线观看 | 午夜资源 | 欧美日韩国产一区二区三区地区 | 免费精产国品一二三产区区大学生 | 色视频在线观看免费视频 | 亚洲我不卡 | 史上最强炼体老祖动漫在线观看 | 日本在线网 | 国产91天堂素人系列在线播放 | 6080新觉伦午夜8050 | 成人午夜精品久久久久久久3d | 国产精品亚洲第一区焦香味 | 亚洲精品视频网址 | 久草免费在线视频 | 黑人一级片视频 | 国产成人精选在线不卡 | 高清欧美日韩 | 国产成人亚洲欧 | 69产性猛交xxxx乱大交 | 久久久av波多野一区二区 |