Door and window manufacturers are not producers of doors and windows, but assemblers of doors and windows. Aluminum alloy doors and windows, aluminum alloy products are composed of several parts: aluminum profile, glass, accessories. So next, I will distinguish the following.
First, look at the name of the door and window.
Don't pursue foreign names blindly. Don't be fooled by fake foreign brands such as Germany and Italy. Good quality is really good. Secondly, check whether the company is formal and whether the production place of the product is finished doors and windows or processed products in other unknown places. General companies of finished doors and windows have formal publicity on the Internet and many obvious anti-counterfeiting marks to prevent imitation and labeling. Even some accessories will be printed with brand Logo (Logo),(if OEM products or simple production, it is the owner who buys aluminum materials, the Western home who buys accessories, the glass here, and the cut by himself) the product has no details and is very rough.
Baidu/Forum complaint stickers are good ways to understand brands.
Aluminum profile name: XX aluminum (Baidu: aluminum profile ranking)
accessory name: XX accessories (Baidu: XX brand, origin, it is best to try it yourself).
Glass: 5mm 9A 5mm (not double glazing unit in this era, who still makes a single layer?) The thickness of the glass, the glass produced by some companies is not bright enough, and the white glass is even a little green (it can almost pretend to be green glass).
Vertical hinged door selection
vertical hinged door is usually installed in the bathroom or in the kitchen with a narrow door opening, so the opening frequency of the door is much higher than that of other doors. At this time, material selection and accessories are more critical, the materials of door materials should be 1.4mm or more wall thickness as far as possible. If the accessory hinge is ordinary hinge, three hinge should be used, the above two and the following one (this is a mechanical problem, which is also ignored by many merchants and cannot be evenly distributed, because weight capacity is mainly concentrated in the upper part). The color can be selected according to the design style of home decoration. Aluminium alloy door is not a wooden door and has strong corrosion resistance.
Aesthetically speaking, bag is a little wider, more elegant and beautiful. Comparison: if it is a bad merchant, in order to save materials, his corners are relatively narrow, even with 90 degrees, the profile is easy to be deformed, and the strength and hardness are poor. Splicing angle code, (save cost, use plastic bracket, easy to age and break, poor strength), generally use at least 45 degrees angle, both beautiful and durable.
Sliding door choice
I am a layman, but as long as I study it carefully, I can at least understand it. The following methods can be adopted to compare products: passing along the track, no abnormal sound, light but not thin; Swing Left and right with the door leaf to stabilize whether there is abnormal sound. If the sound is loud at this time, or the whole door leaf starts to shake, sorry for the stable structure.
The stability is not good, resulting in sliding door easy derailment, and the material interface and track are easy to touch, resulting in a very unpleasant sound. It is better not to buy such a door.
Listen to the sound insulation and sealing, close the door and listen to the sound blocking degree, see the construction principle
many merchants use customers' psychology of not knowing the goods and not knowing the goods, simplify or save the design of sealing structure, reduce the cost of aluminum, and do not use or use poor sealing materials to reduce the cost. If you want to use doors and windows with good sealing effect and good quality, you can use them more: multi-layer adhesive tape sealing or adhesive tape sealing and wool tops combination sealing methods, the sealing layer is added to reduce air convection and the automobile grade sealing strip is adopted, which is the best effect!
