About the caulking material of fireproof board construction. The caulking material used in the product should have certain flexibility and expansion performance to prevent the sheet from being pulled. This kind of caulking material is not allowed to prepare, and the cost is not high, so it is supplied or formulated by the plate manufacturer. The nails used to fix the plate must be derusted or stainless steel nails should be used. Some overseas countries directly stipulate that the nails used in the construction of GFRP must be stainless steel nails. Because there are chlorine salts in the glass magnesium fire-retardant board, the corrosion of chlorine salt to iron is well known in the world. After more than one year, rust spots appear on the surface of embedded nail heads in many projects using fire-retardant boards in China, and after a period of time, the rust spots will swell into a lump. However, the wetter the quality environment is, the earlier the problem will be exposed. To avoid the occurrence of this problem, it is necessary to ensure that the nails are not corroded.
               

　　质量通病：主龙骨、次龙骨纵横方向线条不平直。原因分析：主龙骨、次龙骨受扭折，虽经修整，仍不平直。挂铅线或镀锌铁丝的射灯位置不正确，拉牵力不均匀。未拉通线全面调整主龙骨、次龙骨的高低位置。测吊顶的水平线有误差，中间平面起拱度不符合规定。

　　Common quality problems: the vertical and horizontal lines of main keel and secondary keel are not straight. Cause analysis: the main keel and the secondary keel are twisted and broken, but they are still uneven and straight after trimming. The position of spotlight with lead wire or galvanized iron wire is not correct and the pulling force is uneven. The height position of main keel and secondary keel shall be fully adjusted without drawing through line. There is an error in the horizontal line of the ceiling, and the camber of the middle plane does not meet the requirements.

　　预防措施：凡是受扭折的主龙骨、次龙骨一律不宜采用。挂铅线的钉位，应按龙骨的走向每间1.2m射一支钢钉。拉通线，逐条调整龙骨的高低位置和线条平直。四周墙面的水平线应测量正确，中间按平面起拱度1/200～1/300。

　　Preventive measures: all twisted main keel and secondary keel should not be used. For the nail position with lead wire, one steel nail shall be shot at 1.2m per room according to the direction of keel. Pull through the line, adjust the height of the keel one by one and make the line straight. The horizontal line of the surrounding wall should be measured correctly, and the camber in the middle should be 1 / 200 ~ 1 / 300.

　　吊顶造型不对称，罩面板布局不合理：原因分析未在房间四周拉十字线。未按设计要求布置主龙骨、次龙骨。铺安罩面板流向不正确。预防措施：按吊顶设计标高，在房间四周的水平线位置拉十字线。按设计要求布设主龙骨、次龙骨。中间部分先铺整块罩面板，余量应平均分配在四周较外边一块。

　　The shape of the ceiling is asymmetric, and the layout of the cover panel is unreasonable: the cross center line is not drawn around the room. The main keel and secondary keel are not arranged according to the design requirements. The flow direction of the cover plate is not correct. Preventive measures: according to the design elevation of the ceiling, draw the cross center line at the horizontal line around the room. The main keel and secondary keel shall be arranged according to the design requirements. The middle part shall be paved with a whole cover plate first, and the surplus shall be evenly distributed around the outside.

　　以上是关于防火板施工常出现的问题及问题解决方案，希望对大家有所帮助，如想要了解更多内容欢迎点击富美家防火板http://www.fumeijia.net官网。

　　The above is about the fire board construction problems and solutions, I hope to help you, if you want to learn more, welcome to click the Fumi home fire board http://www.fumeijia.net Official website.