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馬弗爐的這些注意點,你知道多少

來源:技術文章    發布時間:2022-05-16    瀏覽:197次
馬弗爐的使用及注意事項:
1.在馬弗爐加熱時,爐外套也會變熱,應使爐子遠離易燃物,并保持爐外易散熱。 
2.在做灰化試驗時,一定要先將樣品在電爐上充分碳化后,再放入灰化爐中,以防碳的積累損壞加熱元件。 
3.新爐的耐火材料里含有水分,另外為使加熱元件生成氧化層,在開始使用前,必須先在低溫下烘烤數小時并逐漸升溫至900℃,且保持5小時以上,以防爐膛受潮后因溫度的急劇變化而破裂。
4.馬弗爐為實驗用品,不得移作它用,樣品一定要用潔凈的坩堝盛放,不得污染爐膛。 
5.使用時爐溫不得超過最高溫度,以免燒毀電熱元件,并禁止向爐膛內灌注各種液體及熔解的金屬。  
6.馬弗爐使用完畢,應切斷電源,使其自然降溫。不應立即打開爐門,以免爐膛突然受冷碎裂,如急用,可先開一條小縫,讓其降溫加快,待降溫度降至200℃以下時,方可開爐門。


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