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

        Processing method and process of single piece cesium potassium fireproof glass

        2019-09-20 2356

        To produce high-quality fireproof glass, fireproof glass with fire resistance of 1 ~ 3 hours can be achieved. Selecting high-quality original film is the first step to produce high-quality fireproof glass. The original piece of good fireproof glass can be coated or non coated float glass, tempered glass, composite fireproof glass, or single fireproof glass.

        1. Carefully select good car grade original sheet (quality float glass), cut according to the engineering requirements, fine grind the edge, and chamfer according to the actual needs;

        2. Place the glass to be processed vertically on the glass frame, and spray the fire-proof liquid on the side that needs fire protection. Note that the selected fire-proof spray pot cannot be a metal spray pot, and the fire-proof liquid sprayed from the spray pot can appear uniform fog on the glass surface;

        3. After a piece of glass is sprayed, place cork pads at the four corners of the glass to block it, and spray fireproof liquid in sequence;

        單片防火玻璃

        4. Place the glass that has been sprayed with fireproof liquid in a dry place for 40 minutes to 1.5 hours. In this process, the glass is subject to chemical ion exchange, which belongs to the stage of chemical fireproof treatment, which can reduce the coefficient of expansion of the glass surface;

        5. Conduct tempering operation after cleaning, place the fireproof surface upward, increase the wind pressure by 60 ~ 100%, and ensure that the particle size of the tempered glass surface is less than that of the general tempered glass. This process is a physical treatment process, which plays a key role in the overall quality of the fireproof glass. Final printing of general fire protection signs.

        Tempered glass and float glass are the materials for producing single piece cesium potassium fireproof glass. Good tempered and float glass has high hardness and transparency. The processed fireproof glass has good color, bright whole body and good quality; The single piece of fireproof glass can also be used as the data of composite fireproof glass. Because the composite fireproof glass requires higher fire resistance rating, the composite pouring fireproof glass with longer fire resistance can be obtained after the data function is integrated through dry or wet processing.

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


        主站蜘蛛池模板: 亚洲小说图区综合在线| 亚洲露出在线观看下一页| 国产中文久久精品| 日产精品一区二区三区| 在线视频免费观看| 亚洲国产综合自在线另类| 色综合久久久久综合999| 西盟| 日韩精品国产一区二区| 一本一本久久久久a久久综合激情| 欧美熟妇与小伙性欧美交| 日本一区二区三区四区不卡视频 | 亚洲无码网站| caoporn国产精品免费| 久久99国产亚洲高清| 成都市| 在线免费观看视频1区| 国产在线视欧美亚综合| 国产优质女主播在线观看| 亚洲欧美日韩中文综合在线不卡| 永久免费精品精品永久-夜色| 色噜噜av亚洲色一区二区| 亚洲五月激情综合图片区| 亚洲大片免费播放地址| 日韩精品一区二区三区费暖暖| 97久久久精品综合88久久| 亚洲日韩成人无码不卡网站| 午夜影片在线观看视频| 日韩精人妻无码一区二区三区| 亚洲精品一区二区三区免费观看| 在线亚洲AV不卡一区二区| 国产美女av一区二区三区| 亚洲精品国产主播一区二区| 91精品全国免费观看青青| 国产精品无码AV中文| 日韩精品一区二区三区免费在线观看| 免费毛片视频网站| 亚洲一区亚洲二区亚洲三区| 国产欧美日韩专区毛茸茸| 玩肥熟老妇bbw视频| 嗯啊 不要 啊啊在线日韩a|