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水玻璃在鑄造過程中起什么作用
來源: | 作者:hkw935742 | 發布時間: 2021-07-23 | 19 次瀏覽 | 分享到:

  水玻璃在鑄造過程中起什么作用

  硅酸鈉、硅酸鉀鈉俗稱水玻璃(泡花堿),為沒有顏色或有點色、全透明或半透明的稠狀液態,能溶解水,遇酸溶解,其沒有水物為無定形的玻璃狀物質,無嗅無味,不燃不爆,有堿性。

  前者主要用以包裝材料的膠粘劑、清潔劑的原材料、耐火保溫材料及鑄造行業的原材料、生產制造化工原材料的原材料、混泥土的混凝土速凝劑,還可用以耐酸堿浸蝕工程項目。后者按JB274規范安排生產。

  主要用以電焊條領域和裝飾行業。碳酸鉀為單斜結晶體,乳白色粉狀,細顆粒狀結晶體或圓型小球。其熔點為891℃,易溶于水,不溶解乙酸醇和醚,有很強的吸水性,易結小塊,是生產電子管、電視機顯像管、電腦顯示屏夾層玻璃殼的原材料。

  還可用以油墨、電纜、照像、藥物、聚酯、火藥、制革廠、瓷器、裝飾建材、紫水晶及藥業的生產。


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