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如何安装和修复绿色PC耐力板?
1。固定指甲头的直径应比螺丝手柄的直径大1.5倍以上,并且应涂上防水胶。请勿直接按指甲头在板表面上以降低压力。
2。不要太紧拧紧螺丝,否则可能会在板表面引起压力和局部裂缝。
3。防水粘合剂不应使用PVC垫或基于沥青的防水胶带;必须使用密封剂,中性玻璃粘合剂,不应使用酸性粘合剂。
4。在绿色PC耐力板的安装过程中,不建议先固定两端,然后再固定中间。一端应首先固定并沿相同的方向构造,否则将在中间引起应力浓度,并导致产品的变形或破裂。
5。绿色PC耐力板的线性膨胀系数比金属材料大约6倍,因此有必要先在板上钻孔,然后用自敲击螺钉固定它,并且必须将自攻击螺钉插入孔直径的中间。
6。计算保留的扩展空间;扩展值=线性扩展系数×长度×最大温度变化值:PC/FRP板的线性扩展系数= 7 × 10mm/mm/℃
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