美国黄色片一区二区三区,欧美韩日亚洲影视在线视频,国产人妻大战黑人20p,免费无码又爽又刺激高潮的视频免费 ,国产在线丝袜精品一区免费,国禁国产you女视频网站,少女たちよ在线观看动漫4,免费啪啪视频一区

        What is the difference between cesium potassium fireproof glass and monolithic fireproof glass

        2020-08-04 2426

        I. what is the difference between cesium potassium fireproof glass and monolithic fireproof glass

        Single piece cesium potassium fireproof glass is chemically treated for ion exchange at high temperature for more than 20 hours, replacing the metal sodium on the surface of the glass to form the surface chemical tempering stress. After physical treatment, the surface of the glass forms a high-strength compressive stress, which greatly improves the strength. When the glass is broken, it presents the condition of small particles and reduces the damage to the human body! The strength of single cesium potassium fireproof glass is 6-12 times that of ordinary glass and 1.5-3 times that of tempered glass!

        The advantage of single piece cesium potassium fireproof glass is that it is not so closely related to the temperature it can work, but it has the ability to withstand the impact of heat wave and the rapid change of temperature, which depends on the specific heat capacity of the glass (which can affect the rate of temperature rise), thermal conductivity (the rate and distribution of heat passing through the glass) and thermal expansion rate. Together, single piece cesium potassium fireproof glass can accept quenching treatment from 300 ℃ to cold water!

        Single piece fireproof glass can be used as ideal fire-proof materials for high-grade hotels, cinemas, exhibition halls, airports, gymnasiums, hospitals, libraries, commercial buildings and other public buildings without fire zoning requirements, as well as fire doors, fire windows and fire partitions for civil and shared buildings Usability: the selection of various thicknesses can meet different use needs Suitable for indoor and outdoor use of buildings According to the actual requirements, it can be combined with other glass to make laminated or hollow glass with fire prevention function

        II. What is the difference between cesium potassium glass and general glass

        Ordinary glass usually contains alkali metals dominated by sodium Cesium potassium glass is that ordinary glass is put into high-temperature cesium potassium molten salt, and the sodium ion on the glass surface is replaced by cesium potassium ion with larger diameter, so that the glass surface forms compressive stress, and then has the effect of tempering Therefore, cesium potassium glass is chemically toughened glass Toughened cups are mostly this kind of glass

        If the cesium potassium glass is subject to wind (physical) tempering treatment, it will become a high-strength cesium potassium fireproof glass

        單片防火玻璃

        III. related concepts

        3.1 fire prevention

        Fire prevention literally means to prevent fire. In the process of fabric deep processing, it refers to a process that prevents fire. Everyone should pay attention to fire prevention, know more about fire escape knowledge and protect the safety of themselves and their families. That is to clean up potential fire hazards and prevent fire.

        3.2 glass

        Glass staggered inorganic nonmetallic materials are generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main materials, and other auxiliary materials. Its main components are silica and other oxides. The chemical composition of general glass is Na2SiO3, CaSiO3, SiO2 or Na2O · Cao · 6sio2. The main component is silicate double salt, which is an amorphous solid with irregular structure. It is widely used in buildings to isolate wind and light, and belongs to mixture. There are also colored glass mixed with oxides or salts of some metals to show color, and tempered glass made by physical or chemical methods. Some transparent plastics (such as polymethylmethacrylate) are sometimes called plexiglass.

        Article source: monolithic fireproof glass http://m.wan-xin.net/


        主站蜘蛛池模板: 天堂Av无码Av一区二区三区| 欧美白妞大战非洲大炮| 久热综合在线亚洲精品| 精品少妇人妻av无码久久| 亚洲av午夜福利精品一区二区| 无码中文字幕久久久久久| 青岛市| 亚洲欧美日韩高清中文在线| 在线播放91| 国产一区二区精品久久呦| 中文字幕av国产精品| 日本一区三区高清视频| 亚洲中文字幕在线精品一区| 久久久国产精品ⅤA麻豆百度| 国产欧美日韩A片免费软件| 天天澡日日澡狠狠欧美老妇| 日韩人妻高清福利视频| 国产精品人成在线观看| japanese边做边乳喷| 亚洲国产精品久久久久制服| 台湾佬中文娱乐网22| 察隅县| 亚洲精品亚洲人成在线播放| 美女熟妇67194免费入口| 超碰成人人人做人人爽| 亚洲av日韩av天堂久久| 国产精品熟女孕妇一区二区| 日本手机在线| 日韩欧美亚洲综合久久99e| 国产精品三级久久久久久久| 国产美女亚洲精品一区| 午夜短无码| 潮喷失禁大喷水无码| 三人交free性欧美| 昌邑市| 无码久久精品蜜桃| 中国明星xxxx性裸交| 欧美成人精品福利在线视频| 亚洲伊人不卡av在线| 久久人妻av一区二区三区| 青青手机在线视频观看|