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首页 热喷涂资料 喷瓷管线的生产研究.PDF

喷瓷管线的生产研究.PDF

2020-06-21
本文收集于网络，只对文章进行简介，如阅全文，请下载。欢迎在下面发表你对本文的观点。

目前，石油管线的防腐主要采用有机涂层防护技术，但有机涂层本身的弱点 (易老化和不耐高温) 使其应用受到了限制。急需一种抗老化、耐高温的涂层作为其替代产品 , 于是人们把注意力转向了无机非金属涂层。

喷瓷管线类似搪瓷，采用火焰喷涂将釉料涂覆于金属管道表面形成一种耐磨、抗蚀的复合材料。此技术一改传统的搪瓷窖烧模式，克服了由于受烧结炉的限制而生产周期长、效率低的缺点。

(1)用氧气-石油天然气火焰及热熔敷均可在碳钢管道表面涂覆耐蚀的瓷层。

(2)瓷层相结构主要为玻璃态，有少量Na2 MoO4(MoO3) y 晶相存在。

(3)瓷层于基体界面处产生元素的扩散与聚集，Ni 元素在界面富集，Si、Fe、O在此处发生扩散，这均有利于瓷层与基体的结合。火焰喷涂形成的界面过渡区较热熔敷形成的宽。 


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    东莞住房公积金提取【广东】13927555068微信同号/公积金怎么才能提取出来▓公积金提取流程都有什么

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