欧美黑吊大战白妞欧美大片-日批视频免费-超碰视屏-欧美一级特黄aaaaaa-日本午夜精品理论片a级app发布-人人干人人澡-午夜精品久久久久久久99黑人-男人与雌宠物交h-日韩成人免费在线-天天射夜夜爽-九一亚色-香蕉视频首页-一区二区三区视频免费在线观看-欧美日韩亚洲国产一区-久久这里有-我不卡av-婷婷综合在线视频-久久在线视频精品-国产蜜臀在线-午夜欧美成人

全國熱線服務:

News 當前位置:首頁 > News > News >

Various measures to improve the wall thickness of high-precision cold drawn pipes

       In the production process of high-precision cold drawn pipes, the thickness of the pipe wall is difficult to control. Are there any optimization measures that can be adopted in this regard?
       If you want to change the wall thickness of cold-drawn tubes, you must do it from all angles. For example, when the tube blank is heated, you must maintain uniformity and ensure a smooth and slow rise and fall of the temperature. At the same time, you can also adjust the equipment to confirm the installation position and various parameters of the centering roller; and the rolling center line of the piercing machine and the center line of the piercing car must be the same to avoid bad situations.
       In addition, the production tools of cold-drawn tubes must be replaced in time, mainly the mandrel, which must be maintained in a better working condition and with higher precision. After improving all aspects of technology and equipment, the wall accuracy of cold-drawn tubes will increase.
       Please indicate the source for reprinting:http://www.fdzsw.cn

上一篇:How to distinguish honed pipes from seamless steel pipes

下一篇:Commonly used straightening methods and straightening principles of high-precision cold drawn tubes