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鋼化玻璃與普通玻璃有哪些不同之處
來源:www.szkingly.com 發(fā)布時間:2014-07-31


      普通玻璃經(jīng)鋼化爐鋼化后,就能夠承受錘砸、磚拍的重力,卻經(jīng)受不住小錘敲“四角”的微力?這樣到底安全不安全?鋼化玻璃與普通玻璃有哪些不同之處呢?鋼化玻璃在日常生活中經(jīng)常使用,但人們對鋼化玻璃卻不是很了解。為了消除人們對鋼化玻璃的認(rèn)識盲區(qū),本文簡單講述鋼化玻璃與普通玻璃有哪些不同之處。   
      鋼化玻璃是一種預(yù)應(yīng)力玻璃,為提高玻璃的強度,通常使用化學(xué)或物理的方法,在玻璃表面形成壓應(yīng)力,玻璃承受外力時首先抵消表層應(yīng)力,從而提高了承載能力,增強玻璃自身抗風(fēng)壓性、寒暑性、沖擊性等。生產(chǎn)鋼化玻璃的方法一般有物理方法和化學(xué)方法。因為用物理方法生產(chǎn)的玻璃破碎后產(chǎn)生的碎片小而碎,所以多用物理方法制作鋼化玻璃。物理鋼化工藝主要是通過即冷即熱改變玻璃的物理性質(zhì)。   
      如果對鋼化玻璃的形狀有特殊要求,那么需要提前進行切割。因為玻璃鋼化之后不能切割,所以制作鋼化玻璃必須提前造型,之后將其放入鋼化爐中,在爐中加熱到一定程度后突然降溫,這樣一冷一熱,就改變了玻璃分子的物理結(jié)構(gòu),從而實現(xiàn)玻璃的鋼化。    
      鋼化玻璃的四角容易破碎主要是由于四角在受到外力時四周的應(yīng)力不均勻。當(dāng)玻璃邊緣受到撞擊時周圍沒有借力的地方,損傷不會被分散,很容易破碎。而中部受外力沖擊時,周圍原子會把力分散開來,所以玻璃就不容易碎。以上就是鋼化玻璃與普通玻璃的主要不同之處。


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