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How to choose durable hardware for Windows and doors?
The hardware fittings of doors and windows is the important fittings of aluminium alloy profile doors and windows, its quality performance affects the use quality of doors and windows. So the safety of window fittings hardware, durability is very important, aluminium alloy profile doors and windows, window hardware accessories are united in each other, their ability brings the practical experience of the product truly to user.
Because there are many kinds of doors and windows in modern buildings, they can be divided into plastic windows, composite windows and aluminum alloy windows according to profiles; However, aluminum alloy doors and windows account for a large proportion of building doors and windows in China compared with other profiled building doors and windows. Aluminum alloy doors and windows have more obvious advantages in environmental protection than other doors and windows, and are favored by the public. Their functions, such as wind pressure resistance, corrosion resistance, waterproof, etc., are prominent, so building doors and windows are mainly made of aluminum alloy; So how should we choose the right door and window accessories to bring better experience to users and consumers?First of all, we should pay attention to whether the materials of the selected door and window hardware fittings can avoid corrosion and bring more lasting use experience when they are installed and used in contact with aluminum alloy doors and windows, and also protect and extend the service life of doors and windows;
1. According to the chemical properties of the metal, accessories made of materials similar to the potential difference of aluminum alloy profiles should be selected
Since two different metal materials contact with some medium in the complex air, and their electrode potentials are different, thus forming a corrosive primary cell, the selection of materials is very important when selecting the hardware of door and window fittings. Try to choose the metal materials with inactive chemical properties, such as the multi-point grip, window hook lock, etc. in the Osto door and window hardware. The zinc alloy material and baking paint spraying can effectively prevent the primary cell effect between metals, Greatly extend the service life of the product.
2. Accessories made of stainless steel
For example, SUS304 stainless steel is mainly used as the main material for the production of window braces (sliding braces). Stainless steel has good corrosion resistance. Insulating materials are used at the part where the fittings contact with aluminum profiles, which can more effectively prevent the "galvanic reaction" between door and window hardware fittings and aluminum profiles, which is also galvanic corrosion, and prolong the service life of hardware fittings.
3. Select accessories with surface treatment
The common surface treatment of door and window hardware fittings are metal plating and surface coating. According to the needs of customers, the method of no coating is adopted. Metal plating is mainly to coat the hardware fittings with a layer of metal film on the surface of the door and window hardware fittings with chemically inactive metal, that is, the passivation treatment of the metal surface of the five metal fittings to effectively prevent corrosion. The appearance of the galvanized door and window hardware fittings is fresh and simple, which is suitable for modern aesthetic needs. Another is the surface baking paint spraying process. The polished metal blank before spraying will increase the adhesion of baking paint on the metal surface. The sprayed product has a delicate appearance, a silky feel, a good corrosion resistance, which can be comparable to the electroplating process, and the cost is superior to metal electroplating, so most customers will choose the latter.
How to choose the door and window hardware fittings? In addition to the main materials used in the production of the fittings, the surface treatment process should also be considered to select the appropriate user or customer's door and window hardware fittings!
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