PC板安裝方式
1先檢查板材的裁切尺寸和膨脹預留量是否合格,要特別注意留出足夠的均勻的膨脹間隙,計算公式如下:總膨脹間隙=膨脹系數×當地裝置前后大的溫差 板材長度膨脹系數為7.010-mm/mm.K
2中空板裝置工程中板材被連接件夾持局部里要含有一條筋肋,或者板材邊緣被夾持的局部小20mm
3認明板材表面UV的一面,并把該面朝外安裝,不允許把含UV的一面朝內安裝;4裝置前把板材四周的維護膜揭起30-50mm不要讓連接件夾住保護膜,但也不可揭起太多,以免因操作而損傷板面;
4注意:有些工人操作時把保護膜夾在連接件里,然后用鋒利工具劃印再揭起,但往往劃傷板面而導致板材破壞;
5自攻釘擰緊時用力要均勻,確保連接件真的壓實密封膠條和板材;
6當發現安裝誤差時,可能發生滲漏部位可充以密封膠進行彌補,如:迎水面兩端密封膠墊的連接處。要選用固化后仍保持柔軟、低模數、延伸率大于50%的中性耐候硅酮膠,施膠前要使連接件及板材的外表清潔和干燥,做到無油污、塵土、水汽、露珠及其它雜物,施膠要均勻,膠層表面光滑,斷面尺寸一致并不得有間斷現象;須特別注意的所使用的中性密封膠提前與板材做相容性試驗,以防止與板材發生化學反應;
7中空板材冷彎安裝的情況下,其彎曲半徑不得小于板材厚度的175倍;
8中空板材只能順肋筋方向彎曲;
9中空板材傾斜裝置應順肋筋方向,有利于冷凝水導出;
10板材裝置好后要求立即揭掉保護膜,如因施工要求保護板面,也須先揭掉保護膜,而后重新覆蓋;
11板材裝置好后應進行自檢,特別要認真做噴淋試驗,檢查是否漏水,如有漏水隱患應及時處理,然后再檢查外觀質量;
12板材裝置全過程中嚴禁足踏板面,操作時須使用跨越板材的可移式踏板;
13如須在板上直接固定自攻自鉆釘,須擴孔,所有鉆孔直徑應大于螺栓直徑,留出熱脹冷縮間隙;14孔的中間到板材邊緣間距應大于等于5公分。
Installation of Sunshine Plate Lesson Experience 1 Check whether the cutting size and expansion reserve are qualified, and pay special attention to reserve enough uniform expansion clearance. The calculation formula is as follows: the total expansion clearance = expansion coefficient * the maximum temperature difference plate length expansion coefficient before and after the local device is 7.010-mm/mm. In the project of K2 hollow plate device, the clamping part of the plate to be connected must contain at least one. Strip ribs, or the smallest part of the plate edge clamped by 20mm3, recognize the anti-ultraviolet side of the surface of the plate, and install it outward, never allow the anti-ultraviolet side to install inward; 4) before the device, lift the maintenance film around the plate 30-50mm, do not let the connectors clamp the protective film, but also do not expose too much, in order to avoid damage to the plate surface due to operation; 4. Note: Some workers. During operation, the protective film is clamped in the connector, and then scratched and uncovered with sharp tools, but often scratched the surface of the plate, which leads to the destruction of the plate; 5. When the tapping nail is tightened, the force sh
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