With the development of society, people's aesthetic views on aluminum alloy doors and windows are increasing day by day. The arc buckle is beautiful and elegant, which greatly improves the quality of doors and windows. Therefore, the arc buckle has become the first choice for door and window production.
Why has arc fastener become the first choice for door and window production?
The original arc buckle three buttons a push, cutting 45 degrees angle production is very troublesome, low yield, low efficiency, to the door and window processing has brought great difficulties. Aluminum alloy doors and windows equipment manufacturing of aluminum alloy doors and windows arc buckle strip punching equipment, for the aluminum alloy doors and windows factory to solve this big problem, this equipment eliminates the previous 45 degrees angle cutting trouble manufacturing, a punching success, greatly improve the work efficiency, is very popular with aluminum alloy door and window factory users.
Shanghai liefan decoration materials Co., Ltd.: how to deal with the anti-corrosion of the outer surface around the door and window frames?
The anticorrosive treatment of the external surface around the door and window frame can be coated with anti-corrosion paint or pasted with plastic film for protection, so as to avoid direct contact between cement mortar and the surface of aluminum alloy doors and windows, resulting in electrochemical reaction and corrosion of aluminum alloy doors and windows. When installing aluminum alloy doors and windows, if connecting iron parts are used for fixing, stainless steel parts are better used for connecting iron parts, fixing parts and other installation metal parts, otherwise, anti-corrosion treatment must be carried out to avoid electrochemical reaction and corrosion of aluminum alloy doors and windows.
The strength of aluminum alloy doors and windows is expressed by the level of wind pressure applied during the compressed air pressure test in the pressure box, and the unit is n / m2. The strength of aluminum alloy doors and windows with general properties can reach 196l-2353n/m2, and high-performance aluminum alloy windows can reach 2353-2764n / m2. Under the above pressure, the maximum displacement of the center of the window leaf should be less than L / 70 of the height of the inner edge of the window frame.
In the pressure test chamber, the sine wave pulse pressure with a period of 2S is added to the outside of the window. At the same time, the window is sprayed with 4 L artificial rainfall per minute per m2 for continuous 10 minutes of "wind and rain" test. There should be no visible water leakage on the indoor side. The water tightness is expressed by the average pressure of impulse wind pressure applied during the test. The general performance aluminum alloy window is 343n / m2, and the high performance window with typhoon resistance can reach 490N / m2. The main structure has been accepted by relevant quality department. Handover procedures have been completed between different types of work. Check whether the size and elevation of door and window openings meet the design requirements. The number, location and embedding method of embedded parts shall also be checked to see if they meet the design requirements. If it does not meet the design requirements, it should be handled in time. Snap the center line of doors and windows according to the size required in the drawing, and mark the horizontal line of 10-50cm indoor.
Li Fan's warm tips: check the aluminum alloy doors and windows, if there are wedge angle, warpage, deviation exceeding the standard, surface damage, deformation and looseness, and large color difference of appearance, they should be solved through consultation with relevant personnel, and they can be installed only after they are treated and accepted as qualified.