Measures to prevent damage to hardware: Plano Convex Cylindrical Lens,Si Plano Convex Mirror,Silver Coated Mirrors,Cylindrical Convex Lenses Lambda Research Optics ChangChun,LTD. , https://www.lambdachina.com
1. The model, specification and performance of the selected hardware fittings should conform to the current national standards and relevant regulations, and match the selection of plastic steel doors and windows.
2. For sliding windows with a width of more than 1 m, or doors and windows with double glazing, double pulleys or rolling pulleys should be used.
3, sliding hinges shall not be made of aluminum alloy material, stainless steel "target=_blank> stainless steel material shall be used.
4. To install the hardware with the fastening screws, a metal lining must be built in. The thickness of the lining should be at least twice the distance of the fastener. Do not fasten to plastic profiles or use non-metallic linings.
5, hardware accessories should be installed last, door and window locks, handles, etc. should be assembled after the window is placed in the frame to ensure correct position and flexible switch.
6, the hardware should be carefully maintained after installation to prevent rust and corrosion. In daily use, it should be lightly closed to prevent hard opening and damage. Die casting hinges are currently used on the market. This kind of hinge is directly die-cast from zinc alloy, so the quality of zinc alloy is very important. The grade of zinc alloy is different, the quality will be different. Generally speaking, since the hinge is a very important hardware, the zinc is selected. The alloy is also better than the zinc alloy of other hardware. When the zinc alloy of the impurity impurities is selected, the hinge produced will be brittle, the bearing capacity is not strong, and the load is easily broken after the load is applied. In addition, the die casting process of the zinc alloy also seriously affects the quality of the hinge. In view of the fact that the raw materials of the hinge are generally not easy to identify, it is recommended that consumers purchase regular branded products to ensure quality.
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