亚洲日韩乱码中文无码蜜桃臀,欧美性猛交aaaa片黑人,巨熟乳波霸若妻在线播放,国产在视频线精品视频

HomeHotlineContact
0position:Home>>News

How to process U-groove by milling machine

source:   author: time:2020-08-15 Visits:1561
Butt joint: butt joint is the most widely used and perfect joint form among various welding structures. For example, the longitudinal and circumferential welds of boiler drum are butt joints. In general, V-shaped groove is used in manual arc welding and automatic welding for welding parts less than 6 mm and 14 mm respectively. The V-groove processing is convenient, but the workpiece is easy to deform after welding. The thickness of steel plate is 12-60 When mm, X-shaped groove can be used, which is better than V-shaped groove. Under the same thickness, it can reduce the amount of welding metal by about 1 / 2. In addition, due to the symmetry of weld joint and small deformation of weldment, it is mainly used in structures with large thickness and small deformation; U-shaped and double-u-shaped groove have less welding metal amount and less welding deformation, but the groove processing is more complex and generally only important For example, this form is often used for girth welding of boiler drum in power plant. In the manufacturing of industrial boilers, due to the limitation of processing conditions, V-shaped groove and asymmetric X-shaped groove are generally used. For small diameter drum, when the inner side is inconvenient to use automatic welding, V-shaped groove is often used.

More edge milling machines, with pressure beam milling machine, no pressure beam edge milling machine, end face milling machine, end face milling machine, planer. Please turn it off m.ka4yq2e.cn


All rights reserved:WUXISHI XILI MILLING MACHINE CO.,LTD(m.ka4yq2e.cn)  Su ICP 15043207-1 Design :25318.cn

成 人片 黄 色 大 片| 亚洲av成人无码久久www| 久久国产色av免费看| 中文综合在线观| 在教室伦流澡到高潮h强圩电影| 国产99在线 | 欧美| 伊人情人色综合网站| 久久亚洲精品中文字幕| 亚洲精品人成无码中文毛片| 潮喷失禁大喷水aⅴ无码| 国产成人一区二区三区| 日韩网红少妇无码视频香港| 国产精品国产亚洲精品看不卡| 亚洲欧美中文字幕5发布 | 成熟丰满熟妇高潮xxxxx| 大学生高潮无套内谢视频| 日韩欧美亚洲国产精品字幕久久久| 99国产欧美久久久精品| 18禁黄网站禁片免费观看| 亚洲av永久无码一区二区三区| 嫖妓丰满肥熟妇在线精品| 无码一区二区三区免费视频| 欧美人妻日韩精品| 亚洲av日韩精品久久久久| y111111少妇影院无码| 一本色道久久88亚洲精品综合 | 丰满人妻一区二区三区免费视频| 欧美丰满老熟妇aaaa片| 亚洲成av人片乱码色午夜| 国产精品亚洲欧美大片在线观看| 樱桃视频影院在线播放| 久久久国产精品va麻豆| 四虎国产精品永久在线| 夜夜爽夜夜叫夜夜高潮| 亚洲日韩国产一区二区三区| 老司机午夜福利视频| 国产av无码专区亚洲av琪琪| 99久久精品费精品国产一区二| 国产精品白浆无码流出| 精品久久久无码中文字幕| 夜夜夜高潮夜夜爽夜夜爰爰|