四虎国产精品久久久久久网址,亚洲韩国日本va精品国产一区,国产美女免费看啪啪啪,亚洲无人区午夜福利码高清完整版,亚洲一区在线电影观看,亚洲午夜一区二区三区精品影院,放成年人的黄色片一级,夫妻丰满一区二区三区,97精品伊人久久久大香线蕉,亚洲精品aa片在线观看国产

  • <tfoot id="kquwu"><input id="kquwu"></input></tfoot>
  • Hello, welcome to the official website of huaibei yuanli metal products co., LTD.
    服務(wù)手機(jī)TEL:13809005750
    全國(guó)統(tǒng)一服務(wù)熱線

    Service hotline:
    0561-3158099

    HOME-News-Industry dynamic
    Two methods for deep processing of cold-rolled strip steel
    Release time:2018-6-28 18:34:59      Number of clicks:1484
    Cold rolled steel strip is a common steel, not only the cost is low, and the performance is good, of course, in order to be able to play the biggest performance of cold rolled strips, deep processing is little not, how to carry on the deep processing of cold-rolled strip steel? Cold-rolled strip mill gives the following two methods.
    Method 1: acid-free dephosphorization of cold-rolled strip steel.
    Raw materials for pickling of cold rolled strip steel is the biggest pollution produced by production time, many people use shot peening to phosphorus removal, of course, also have electrolysis, effect is the same, basically all is not very good. Now, phosphorus is best is acid free phosphorus removal, and the main steps is to let the cold rolled steel strip in the environment of no oxygen gas burner with grey to blow out, and quickly achieve the corresponding temperature, the process have to be mixed in hydrogen, of course, but also to prevent the cold rolled strip steel cooling to room temperature oxidation phenomenon appeared.
    Method 2: cooling and lubrication of cold-rolled strip steel.
    Will follow strip cold rolling lubrication waste liquid to cold rolling workshop together, this will undoubtedly cause pollution, at the same time, the requirements for fire safety grade is high, it is need to conquer, is also the general cold rolled strip steel factory needs to take corresponding measures to deal with.
    The above are two deep processing methods of cold-rolled strip steel, hoping to bring help for better production and use of cold-rolled strip steel.

    The news that you are interested in
    The last one:What is the difference between cold-rolled strip and hot-rolled strip?
    Next:Different applications of cold-rolled steel belts are also different
    Quality assurance
    The good faith for this
    Professional and
    technical
    Advanced equipment
    Intimate after-sales

    We must pursue perfection, service equipment manufacturing, technology innovation and quality development

    久久精品熟女亚洲av麻豆| 大胆美女一区二区视频| 九九精品在线一区区| 亚洲成人自拍视频在线观看| 最新麻豆精品在线视频| 国产精品女主播在线观看| 少妇极品熟妇人妻高清| 午夜福利一区二区三区四区五区| 日产乱码一二三区别免费麻豆| 四虎在线观看视频官网| 古玲一区二区三区视频| 18禁网站入口免费观看| 国产精品一亚洲av日韩av欧| 久久成人精品一区二区五区| 国产精品久久午夜福利| 成人精品一区二区激情| 亚洲熟妇av一区二区三区宅男| 亚洲一区在线观看蜜臀| 日本高清一区二区三区三区| 久久91精品国产一区二区| 亚洲午夜高清乱码中文字幕| 久久不卡一区二区三区| 成人国产欧美大片一区| 亚洲午夜女人一片二片| 国产区不卡在线视频| 亚洲欧美另类综合第一页| 激情综合网之激情五月| 国产一区二区三区特区| 国产精品三级在线观看| 日产日韩亚洲欧美综合在线| 亚洲综合一区二区不卡| 日韩一区二区三区久久| 久久精品少妇国语对白| 久久午夜伦鲁鲁片免费| 老熟妇高潮偷拍一区二区| 久久精品一偷一偷国产| 日韩东京热在线视频| 美女一二三四区免费观看| 久久综合之久久综合色| 激情久久综合久久人妻| 精品国产精品欧美一区|