中文
EnglishSkill requirements for fireproof glass
The fire-resistant function of fire-proof glass for construction is obtained by embedding the fire-proof glass directly in the wall hole or combined with the structure, and then embedded in the wall hole to make components according to gbl2513. It includes the determination of fire-resistant integrity, fire-resistant and heat insulation and thermal radiation intensity. The temperature of the thermal insulation surface is used as the criterion.
According to gb15763 1-2009 (according to the rules of safety glass and fire-proof glass for construction), fire-proof glass for construction is divided into class A (fire-proof glass satisfying the requirements of fire integrity and fire insulation) and class C (fire-proof glass satisfying the requirements of fire integrity). According to the fire resistance rating, the three types of fireproof glass can be divided into grade I (≥ 90min), grade II (≥ 60min), grade III (≥ 45min) and grade IV (≥ 30min). Fire resistance integrity -- refers to the flame on the back fire surface of the test piece and continues to burn for 10s or more; During the experiment, when the flame or gas of the test piece appears from the holes and other gaps, the ignition test of the cotton pad shall be carried out. If the cotton pad is ignited, it indicates that the test piece has lost its integrity (if the test piece collapses during the experiment, the manufacturer of the raw material of the fire-proof liquid is the same, it indicates that the test piece has lost its integrity).
Fire resistance and thermal insulation -- refers to the temperature rise of single point at the temperature measuring point on the back fire surface of the test piece of 180 ℃ and uniform temperature rise of 140 ℃.
Article source: fireproof glasshttp://twqwq.cn/
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