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1。PC板的固定指甲头的直径应大于螺钉手柄直径的1.5倍以上,并且应涂上防水粘合剂。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。防水粘合剂不能使用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,不得使用酸性粘合剂。
4。在PC板的安装过程中,不允许先固定两端,然后再固定中间。一端应首先固定并沿相同的方向构造,否则将导致中间应力浓度并导致产品的变形或破裂。
5。由于PC/FRP板的线性膨胀系数比金属材料大约6倍,因此有必要在用自敲击螺钉固定板上的板上钻孔,并且必须自攻击螺钉被插入孔中间。
6。计算保留的扩展空间;膨胀值=线性扩展系数×长度×最大温度变化值PC/FRP板线性扩展系数= 7 × 10mm/mm/℃
Ningbo Chaomei塑料是一家塑料厂生产企业,它整合了高质量聚碳酸酯片的研发,生产,销售,材料加工,仓储和分布。
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