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    通风管道翘曲变形形成的几大原因?
    来源: 2017-06-20 19:33:54
    ①镁水泥在自然养护条件下其体积是一个连续膨胀过程,其线膨胀率为0.1~0.2%,体积膨胀率约为1%;
    The volume of magnesium cement is a continuous expansion process under natural curing conditions, the linear expansion rate is 0.1~0.2%, and the volume expansion rate is about 1%;
    ②菱镁矿在服烧过程中不可避免地产生局部过烧,使一部分MgO呈死烧状态,过烧的MgO水化过程很慢,当已形成强度的水泥石中的MgO再遇水进行水化时,生成Mg(OH)2,体积膨胀120%;
    The clothes burned magnesite in process inevitably produces some overbumt, a part of MgO was dead burning, burning MgO hydration process is very slow, when the hydration of cement stone strength has been formed in the MgO meet water, generating Mg (OH) 2, volume 120%;
    ③轻烧氧化镁中游离CaO水化时体积膨胀90%,而卤片中存在着 SO42-,当Ca(OH)2转化成石膏时,固体体积将增加2倍以上,导致制品变形,这也是限制轻烧氧化镁中游离CaO含量、卤片中SO42-含量的原因;
    The 90% volume expansion of light burned free CaO water in Magnesium Oxide, and there are SO42- halogen tablets, when Ca (OH) 2 is converted into gypsum, solid volume will increase by more than 2 times, resulting in product deion, which is also the limit of light burned in Magnesium Oxide free CaO content and SO42- content in bittern by;
    ④MgO-Mg-C12-H2O系统水化过程是一个强烈的放热反应过程,而生产的管道体积又大,若环境温度较高,则反应升温过程,板材本体温度过高,反应不充分,造成较大的结晶应力和热膨胀应力,使制品体积膨胀。
    The hydration process of MgO-Mg-C12-H2O system is a strong exothermic reaction process, and the production of the pipeline volume is large, if the ambient temperature is high, the reaction temperature, the plate body temperature is too high, the reaction is not sufficient, resulting in greater crystallization stress and thermal expansion, the product volume expansion.
    本文来自:济南通风管道更多的内容请点击:我们将会为您提问的问题提供一个满意的服务,欢迎您的来电!
    This article is from: Ji'nan ventilation pipe for more content, please click: , we will provide you with a satisfactory answer to the question, you are welcome to call!
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