国产欧美日韩另类精彩视频,婷婷色国产精品视频一区,亚洲精品视频熟妇人妻,日本免费人成视频播放,亚洲 另类 日韩 制服 无码,久久精品亚洲乱码伦伦中文,日韩AV片无码一区二区不卡电影,亚洲熟女av一区激情,男女性高爱潮免费网站,亚洲精品毛片免费观看

  • <del id="ceak0"></del>
    
    
    <strike id="ceak0"><menu id="ceak0"></menu></strike>
    <strike id="ceak0"><menu id="ceak0"></menu></strike>
  • <fieldset id="ceak0"><table id="ceak0"></table></fieldset>
  • <strike id="ceak0"></strike>
  • <fieldset id="ceak0"><menu id="ceak0"></menu></fieldset>
    <fieldset id="ceak0"></fieldset>
  • <del id="ceak0"></del>
    <ul id="ceak0"></ul>
  • 歡迎訪問Taizhou Huayuan Metallurgical Machinery Co., Ltd.網(wǎng)站!
    中文 中文 |  英語 English

    What are the influencing factors of sunk roller scratches

    時間:2020-06-13   訪問量:1525

    In the production of sunken rollers, some small defects sometimes occur, such as sunken roller scratches, etc., how did this phenomenon happen? What are the influencing factors?


    In fact, there are many influencing factors. For example, in terms of equipment, there are generally the following reasons:

       

    a. The mechanical structure of the sunk roller device is considered from the perspective of increasing friction. The groove type of the sunk roller surface should be considered first. The reason is two points. The first point is that zinc is a heavy metal, and its zinc liquid has poor fluidity and high viscosity. It is easy to form between the steel strip and the sinking roller during the high-speed movement of the steel strip and the sinking roller A layer of zinc liquid film has a certain lubricating effect, reducing the transmission friction between the steel strip and the sinking roller, which is easy to cause the sinking roller scratching defect. Therefore, the groove must be conducive to the flow of the zinc liquid between the strip steel and the sinking roller to prevent the formation of a sliding film of the zinc liquid. The second point is that when designing the groove of the sunken roller surface, from the mechanical point of view, the sunken roller and the steel strip are in the best stress state, and the transmission friction between the two is increased as much as possible. Therefore, when designing the groove of the sunken roller surface, the above two points must be considered.

       

    b. The requirement of roller surface material is also one of the influencing factors. Due to the special working position of the sunken roller, the material of the sunken roller surface should meet three requirements: 1. corrosion resistance, 2. hardness requirements, 3. roughness requirements.

      

     c. The influence of the self-weight of the sunken roller. From a dynamic point of view, another important factor affecting the transmission of the sunken roller is the self-weight of the sunken roller. Under normal production conditions, the sinking roller is subjected to the positive pressure of the strip steel, the frictional force between the strip steel and the sinking roller, the force between the bearing housing and the self-weight. It can be seen from the synthesis and decomposition of the force that the combined force of the above four forces can be decomposed into radial positive pressure and radial tangential force, of which the radial tangential force is the driving force for the rotation of the sinking roller, and its magnitude directly affects the rotation of the sinking roller Happening.

       

    d. The structural design requirements of the sunk roller device, the sunk roller device must be designed to solve the problem of axial fixation, to prevent the sunken roller from slipping axially during rotation; especially for some strips that are not good in shape, such as wedge, Uneven thickness of the steel strip, when they are in contact with the steel strip for transmission, the stress between the steel strip and the sunken roller is uneven, which is easy to cause the steel strip to deviate, causing the steel strip to slide axially on the sunken roller and cause sinking. Scratch defects of the roller. The gap between the bearing of the sinking roller and the bearing seat should be as small as possible; too large a gap is likely to cause the radial runout of the sinking roller.


    上一篇:What kind of material is the bottom roller used in the heat treatment furnace for producing stainless steel?

    下一篇:Selection and Optimal Design of Hearth Rolls and Hearth Rolls in Continuous Furnace

    相關(guān)新聞

    為您提供耐腐耐磨砂漿泵,工程塑料泵,蒸發(fā)循環(huán)泵等方面的專屬解決方案

    網(wǎng)站導(dǎo)航

    聯(lián)系我們

    聯(lián)系人:Manager Zhang

    手機:(86)15195227247

    電話:(86)0523-88551112

    郵箱:464292064@qq.com

    地址:Industrial concentration area (Weijia Village), Zhangdian Town, Jiangyan District, Taizhou City

    Copyright ? 2020-2021 Taizhou Huayuan Metallurgical Machinery Co., Ltd. All Rights Reserved 備案號碼:蘇ICP備20031998-1號

    服務(wù)咨詢熱線

    (86)15195227247

    提供完善的冶金機械解決方案

    微信掃一掃

    微信聯(lián)系
    返回頂部
    婷婷五月丁香在线| 亚洲色图狠狠干| 国内老熟妇乱子伦视频| 精品无码AV人妻系列网站| 久久精品国产成人| 噜噜噜久久| 国产精品短篇二区| 久久精品国产亚洲AV无码麻豆| 极品蜜臀黄色在线观看| 国产乱人伦真实精品视频| 无码人妻夜夜爽免费| 人妻少妇456在线视频| a毛片在线| 成人免费AA片在线观看| 无码中文字幕精品推荐| 日本VA欧美VA精品发布| 国产YW8825免费观看网站| 亚洲中文字幕在线观看| 亚洲免费视频不卡一区| 大乳丰满人妻中文字幕日本| 亚洲欧美在线综合一区二区三区| 91嫩草尤物在线观看| 美女裸体黄网站18禁止免费下载| 永久免费AⅤ无码网站在线观看| 日韩精品国产专区一区| 久久精品国产亚洲AV无码麻豆| 亚洲精品无码久久久久久牛牛影视| 日本人又色又爽的视频| 亚洲精品中文字幕有码| 国产精品免费露脸视频| 久热黄片免费观看视频| 国产精品电影久久久久电影网| 99久久免费国产精品热| 97视频精品全国免费观看| 综合天天色| 成年网址网站在线观看| 亚洲色偷拍一区二区三区| 亚洲成A V人片在线观看| 欧美成a人片在线观看| lhav亚洲精品| 99国精品午夜福利视频不卡99|