Garage door manufacturers talk about the geometric angle of door and window profiles

看鋁合金門窗型材的厚度、純度、硬度、韌度及壓能力是否合要求，型材幾何角度是否。型材發生彎曲扭擰，角度要端正。型材表面是否有擠壓紋，再用卡尺測量型材的厚度。檢查厚度很 要，有些冒牌貨選用比較薄的鋁型材為用戶制作門窗，這樣的鋁合金門窗很不。

Check whether the thickness, purity, hardness, toughness and pressing capacity of aluminum alloy door and window profiles meet the requirements, and whether the geometric angle of profiles is. When the profile is bent and twisted, the angle shall be correct. Whether there are extrusion lines on the surface of the profile, and then measure the thickness of the profile with a caliper. It is important to check the thickness. Some counterfeiters choose relatively thin aluminum profiles to make doors and windows for users. Such aluminum alloy doors and windows are very rare.

三、門窗的隔熱條

3、 Heat insulation strips for doors and windows

看鋁合金門窗型材的隔熱條是條還是國產條，并應該索要質量檢測報告進行核對。隔熱條有條和國產條，現在我國使用的國產條主要是塑料的(pvc);隔熱條主要由聚(俗稱尼龍66)加入 化玻璃纖維組成，它，在下40℃～220℃改太陽能，熱傳導值低，機械X能 ，能夠減少熱交換，可以節約能源20～30。

Check whether the heat insulation strips of aluminum alloy door and window profiles are domestic strips or domestic strips, and ask for the quality inspection report for verification. There are two kinds of insulation strips, one is made in China, and the other is made in plastic (PVC); The thermal insulation strip is mainly composed of poly (commonly known as nylon 66) and glass fiber. It is changed to solar energy at 40 ℃ ~ 220 ℃, with low heat conduction value and mechanical x energy. It can reduce heat exchange and save energy by 20 ~ 30.

卷簾門門窗安裝要求：

Installation requirements of rolling shutter doors and windows:

卷簾門門窗安裝0須牢g，橫平豎直，高低1?？蚺c墻體縫隙應填嵌飽滿密實，表面平整光滑，無裂縫，填塞材料與法等應合設計要求。卷簾門門窗扇應開啟活，無倒翹、阻滯及現象。

Rolling shutter doors and windows shall be installed 0 firmly, horizontally and vertically, with a height of 1. The gap between the frame and the wall shall be filled fully and densely, the surface shall be flat and smooth without cracks, and the filling materials and methods shall meet the design requirements. The door and window leaf of rolling shutter door shall be opened and movable, and there shall be no tilting, blocking and.

五金配件應，位置正確。關閉后密封條應處于壓縮狀態。門窗安裝后外觀質量應表面潔凈。大面無劃痕、碰、銹蝕;涂膜大面平整光滑、厚度均勻。

Hardware fittings shall be in the correct position. The sealing strip shall be compressed after closing. The appearance quality of doors and windows after installation shall be clean. The large surface shall be free of scratch, collision and corrosion; The large surface of the coating film is flat and smooth with uniform thickness.

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