【 Building materials network 】Hardware accessories are doors and windows It is an important part of window Comprehensive performance. Because of this, high-quality hardware and sealing material For the use experience of doors and windows, its significance is self-evident.

First question: How to select hardware fittings with good quality and performance?

(1) When selecting hardware accessories, try to select products with guaranteed quality. The quality level of hardware fittings shall be consistent with that of doors and windows: the structure and shape of hardware fittings shall be consistent with that of profiles, and the color shall be coordinated and beautiful, the function shall be correct, the operation shall be flexible, and the installation shall be convenient.

(2) Hardware fittings shall be installed in complete, standard, reliable and accurate positions. After installation, doors and windows shall be beautiful in appearance, flexible and convenient in opening, and free from deformation, obstruction, collision, etc.

(3) Stainless steel products shall be preferred for exposed fasteners of hardware fittings.

(4) Side hung doors and windows and large size Sliding door Multiple locking points shall be adopted when the window is closed, otherwise the air tightness will be greatly reduced under the effect of negative pressure difference; Considering the convenience of operation, it is better to use multi lock point handle or driver.

Second question: How to choose waterproof and durable sealing wool?

(1) When selecting doors and windows, we need to pay attention to whether the top hairs of the product are uniform and dense, whether the hair clusters are straight, and whether there are missing hairs. High quality wool top shall be firmly bonded, with high resilience, and free from defects such as missing wool, deformation or uneven concave and convex.

(2) The silicified wool top with qualified quality has a small smell (even no smell); The poor or even inferior silicified wool top will be accompanied by a pungent smell. The difference between the two is easy to distinguish.

(3) If the sealing wool is tight (that is, the wool seals the door and window gaps tightly), we will obviously feel a resistance when we open the push and pull process. Check whether the sealing wool on the sliding door and window is full, and try to twitch it; If the sealing wool is displaced, it is proved that it has not been fully installed.

(4) In addition, we should also pay attention to the relationship between the size of the sealing wool and the notch: if the size of the wool base does not match the notch of the door and window, it is easy to get out of the slot, which greatly reduces the sealing performance of the door and window; If the specification is too large or the fuzz is too high, it is easy to cause assembly difficulties, which will increase the resistance of doors and windows when opening and closing.

Third question: How to choose a sealed and durable sealant strip?

The thermal insulation performance of doors and windows is closely related to the overall tightness of doors and windows, and the difference between the tightness of doors and windows mainly depends on three points:

(1) Material of sealant strip: Aluminium alloy door The sealing strip of the window must be soft enough to resist aging; Do not melt in summer and harden in winter. The rubber strip used as the seal shall also have a certain tensile strength (standard requirement: strength ≥ 5Mpa). Generally speaking, the higher the glue content, the better the tension, service life and sealing effect of the sealant strip.

(2) Number of profile seals: Door and window profiles The heat preservation effect of three seal design is better than that of two seals. The three-way sealing structure is to add an intermediate sealing strip on the frame and fan profiles (internal and external sealing), so as to separate the water and steam mixing cavity of the two seals, forming the outdoor side watertight cavity, and the indoor side airtight cavity, improving the gas seal and greatly enhancing the insulation performance.

(3) Whether there is an isotherm of the same straight line (or plane) inside the profile: when the cold and hot air is exchanged inside and outside the door and window, the two broken bridges are in the same straight line, which is more conducive to forming an effective cold and hot bridge barrier, which can reduce the cold and heat conduction of the air and reduce unnecessary heat loss.

Every door and window is the beginning of a better life; Behind the door and window products are the persistence and persistence of our Suifu door and window craftsmen, and also the interpretation of quality life. Choose doors and windows, choose safety and choose brands: With careful door and window brands, Suifu doors and windows will naturally give you peace of mind in choosing, buying and using.