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石英玻璃是用二氧化硅制造的特种工业技术玻璃,是一种非常优良的基础材料。石英玻璃具有一系列优良的物理化学性能。
如:1、耐高温:石英玻璃的软化点温度约为1730℃,可在1100℃下长期使用,短时间最高使用温度可达1450℃。
2、耐腐蚀:除了氢**酸外,石英玻璃几乎不与其它酸类物质发生反应,其耐酸能力是陶瓷的30倍不锈钢的150倍。尤其是在高温下的化学稳定性,是其它任何工程材料都无法比拟的。
3、热稳定性好:石英玻璃的热膨胀系数极小,能承受剧烈的温度变化,将石英玻璃加热至1100℃左右,放入常温水中也不会炸裂。
4、透光性能好:石英玻璃在紫外线到红外线整个光谱波段中都有较好的透光性能,可见光透过率在93%以上,特别是在紫外光谱区,最大透过率可达80%以上。
5、电绝缘性能好:石英玻璃的电阻值相当于普通玻璃的一万倍,是极好的电绝缘材料,即使在高温下也具有良好的电性能。
石英玻璃属酸性材料,除氢**酸和热磷酸外,对其它任何酸均表现为惰性,是最好的耐酸材料。在常温下碱和盐对石英玻璃的腐蚀程度也是极微的,因此不排除在这些试剂中使用石英玻璃。石英玻璃是良好的耐酸材料,除氢**酸和300度以上的热磷酸外,在高温下,它能耐硫酸,****,盐酸,王水,中性盐类,碳和硫等侵蚀,其化学稳定性相当于耐酸陶瓷的30倍,相当于镍铬合金和陶瓷的150倍,它耐高温,耐热震,热膨胀系数特别小。
透明石英玻璃比不透明石英玻璃具有更好的化学稳定性,这是因为后者由于气泡的存在暴露在腐蚀液中的表面积增加所致。
Hot press with quartz layering, using quartz as raw materials, light transmittance as high as 99%, flatness to + / - 0.002 mm, no bubble, black spots, such as unhealthy phenomenon, is widely used in COG/FOG/TAB is widely used in such hot press equipment and LCD industries;Can be customized according to the drawing terraced, rectangular, T.Quartz layering is Bonder M/C with one of the important parts, such as COG Bonder, OLB Bonder, FPC Bonder, PCB Bonder and Repail use pressing equipment, all need this part.Has low thermal deformation, high temperature resistant, acid and alkali resistance, high hardness and the characteristics of pervious to light, used as a pressure the right Back up, for the high accuracy requirement.Using quartz material Back up can improve the production yield of the product.According to different purposes and label equipment, also to the requirement of quartz material and size is not the same, our company can cooperate with the customer's requirements, according to the customers' needs and provide suitable for various machines use of material, drawings of the products.Can provide samples in accordance with customer requirements do not calibration various shapes such as L T, square bar, double shape such as manufacturing steps.
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