U型玻璃的強度與溫度的關(guān)系如何？
低溫與高溫對玻璃強度的影響是不同的，一般認為隨著溫度的升高會使缺限處積聚更多的應(yīng)變能，增加破裂的概率。當(dāng)溫度高于200℃時，由于玻璃黏滯性流動增加，使微裂紋的裂口鈍化，緩和了應(yīng)力作用，從而使玻璃強度加大。玻璃的使用溫度范圍較廣，溫度對玻璃強度影響的機理目前尚未探明，根據(jù)在零度（-273℃）至500℃范圍內(nèi)的測試，強度較低點位于200℃左右。
這里還要講玻璃的熱穩(wěn)定性，即玻璃保持不破壞能經(jīng)受的非常大溫度差，也就是玻璃耐急冷急熱的溫度差。顯著膨脹系數(shù)越小，其熱穩(wěn)定性就越好，U型玻璃的Δt約110℃左右，換句話說玻璃加熱到350℃時，如果瞬時降至240℃時就會破裂。微晶玻璃因為膨脹系數(shù)較高，所以其熱穩(wěn)定性也高。通常急熱時，玻璃表面產(chǎn)生壓應(yīng)力不易壞，而急冷時，玻璃表面產(chǎn)生張應(yīng)力就易壞。玻璃的熱穩(wěn)定性還與玻璃成分、制品厚度、是否淬過火等有關(guān)。
浙江祥捷綠建科技有限公司生產(chǎn)的U型玻璃具有良好的環(huán)保和節(jié)能性，符合嚴格的標(biāo)準，為廣大業(yè)主和工程提供更安全，更節(jié)能的全線產(chǎn)品。 祥捷U型玻璃具有采光性好、隔熱保溫、隔音防噪、機械強度高、防老化、耐光照的特點,造型為條幅型,具有挺拔、清秀、線條流暢的時代氣息,并有著獨特的裝飾效果,而且安裝方便。歡迎廣大新老客前來咨詢采購！
The effect of low temperature and high temperature on the strength of glass is different. It is generally believed that with the increase of temperature, more strain energy will accumulate at the gap and the probability of fracture will increase. When the temperature is higher than 200 ℃, due to the increase of viscous flow of glass, the cracks of microcracks are passivated, and the stress is relieved, so the glass strength is increased. Glass has a wide range of service temperature, and the mechanism of the influence of temperature on glass strength has not yet been explored. According to the test in the range of zero (- 273 ℃) to 500 ℃, the low point of strength is about 200 ℃.
Here we also talk about the thermal stability of glass, that is, the very large temperature difference that the glass can withstand without damage, that is, the temperature difference that the glass can withstand rapid cooling and heating. The smaller the significant expansion coefficient is, the better the thermal stability is. The Δ t of U-shaped glass is about 110 ℃. In other words, when the glass is heated to 350 ℃, it will break if it drops to 240 ℃ instantaneously. Glass ceramics have high thermal stability because of its high coefficient of expansion. It is not easy to damage the glass surface when it is hot, but it is easy to damage the glass surface when it is cold. The thermal stability of glass is also related to glass composition, product thickness and whether it has been quenched.
The U-shaped glass produced by Zhejiang Xiangjie Lvjian Technology Co., Ltd. has good environmental protection and energy saving performance, and meets the strict standards, providing safer and more energy-saving products for the owners and projects. Xiangjie U-shaped glass has the characteristics of good daylighting, heat insulation, sound insulation, high mechanical strength, anti-aging and light resistance. Its shape is banner type, with the style of straight, elegant and smooth lines of the times, unique decorative effect and convenient installation. Welcome the new and old customers to consult and purchase!