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首頁 >  新聞資訊  >  技術資訊  >  石英管純度越高越耐溫,放置爐塞在放硅膠密封圈
石英管純度越高越耐溫,放置爐塞在放硅膠密封圈
新聞分類:  技術資訊    瀏覽:2695    日期:2020/12/21    
    因為石英管會在超過1265度的時候產生軟化,所以爐膛溫度在1210度左右的時候使用不超三小時為宜,石英管的耐溫度和它本身的純度有關系在純度越高它的耐溫就會越好。在管式爐加熱時爐管內一定放好陶瓷爐塞不然當爐管溫度較高時,法蘭里的O型圈無法承受260度以上的溫度,導致變形使其密性不好就麻煩了,放置爐塞有利于兩端形成均衡的溫場熱處理工作效果會更好。一邊放兩個兩邊共四個爐塞。

    在平時我們不建議通氫氣,除非氫氣含量在爆炸濃度的可能性以外,如果一定要通氫氣,切記一定要做好最全面的安全措施,通氣時爐管兩邊不要有人,因為不銹鋼的熱傳導系數比石英要大,通氫氣最好用不銹鋼管,所以不銹鋼兩端需要做水冷,不然的話O型硅膠密封圈溫度過高無法達到很好的密封效果。爐管內不能殘留和SiO2產生反應的物質保證管內的清潔衛生,燒物料的時候,為使爐管壽命更長一定不要把物料放在爐管上,使用舟型坩堝盛著比較好。

電爐 | 管式爐 | 箱式爐 | 真空爐 | 專業、品質、保障、售后、科晶電爐值得信賴,鄭州科晶電爐有限公司.
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