ã€China Aluminum Industry Network】 adopts aluminum alloy aluminum alloy profiles with thermal insulation and bridge breaking, and its thermal conductivity coefficient is 1.8-3.5W/m2·k, which is much lower than ordinary aluminum alloy profiles (140-170W/m2·k); if hollow Glass structure, its thermal conductivity coefficient of 3.17 ~ 3.59W/m2 · k, much lower than the ordinary aluminum alloy profiles (6.69 ~ 6.84W/m2 · k), effectively reducing the heat transmitted from the doors and windows into the room; broken bridge aluminum doors and windows Before the installation of aluminum doors and windows in broken bridges, the equipment shall cooperate with inspection dimensions and three lines (vertical line, horizontal line, and in-out line). At the same time, it is necessary to check that the whole frame door and window frame meets the design drawing requirements in the horizontal line and the vertical line. When installing the window, the vertical hanging line is firstly positioned to ensure that the lower window of the entire facade is in a straight line. After the construction of the aluminum doors and windows of the broken bridge and the construction of the door and window foaming agent, the iron feet of the doors and windows shall be buried in time. After anchoring the foot with mortar or mortar, dry it and remove the slant wood. The window sills shall be poured with C20 fines and then painted. During the construction, it is necessary to ensure the quality of the painting around the hole. The level of beam crossing is controlled at 1.5 inches, the total length is not more than 3mm, and the verticality of the hole is controlled at 1.5 inches. After painting, pay attention to strengthening conservation, prevent paint cracks and seepage.