Today, we mainly share the knowledge about system door and window accessories. This article is mainly divided into three parts: hollow glass, rubber strip and hardware.
I. How to choose glass
1. Energy-saving matching skills
compared with monolithic glass, the insulation performance of insulating glass can be improved twice, and the power consumption of buildings equipped with air conditioners can be greatly reduced. In summer, it can be insulated by more than 70%, while in winter, indoor heating is not easy to lose, reducing heat loss by up to 40%, thus playing the role of heat preservation, thus turning the theoretical warm winter and cool summer into reality.
2. Safety matching skills
if both sides of the indoor and outdoor glass are selected tempered glass, the impact resistance and safety of the glass are greatly improved both indoors and outdoors. Because the impact resistance of tempered glass is 5-10 times that of ordinary glass, and its bending resistance is 3-5 times that of ordinary glass, which can be described as safe home. After the tempered glass is broken, it is granular, and the corners are very dull, which is not easy to hurt people.
The processing procedure of tempered glass is to cut the ordinary float glass into the required size first, then edge grinding, cleaning, printing with ink on the national compulsory certification ccc mark, the glass after firing the finished product in toughening furnace cannot be cut or processed again, while the ink cannot be scraped off after passing through high temperature. (If the 3C logo on your glass can be wiped off by hand, it can basically be concluded that it is fake tempered glass)
3. Heat absorption and sun protection matching skills
for rooms with Chaoyang or western sun, the door and window glass outside the room should be heat absorbing coated glass, and the indoor side should be ordinary white glass. Since the heat absorbing glass absorbs infrared light, it can reduce 20%-30% of the solar energy injection, thus reducing the heat energy entering the room. In summer, it can reduce the load of the air conditioner; In winter, due to the absorption of infrared light, the temperature of itself rises, which can resist external cold and achieve energy saving effect. Since heat absorbing glass is colored glass, the decorative effect is also obvious while saving energy.
(Image Source: Hennessy doors and windows public number, invasion and deletion)
II. Sealant strip is related to the quality of doors and windows
what are the main family members of sealant strips?
This includes vulcanized rubber sealant strip, silicone rubber sealant strip, neoprene glue sealant strip, **rubber sealing strip, thermoplastic elastomer sealant strip, thermoplastic vulcanized rubber sealant strip, and plastic PVC sealant strip.
Among them, vulcanized rubber sealant strip (EPDM EPDM EPDM) has excellent comprehensive properties, outstanding ozone proof, excellent weather resistance, and good high temperature resistance and low temperature resistance, outstanding chemical resistance and low relative density have been unanimously recognized by the door and window industry at home and abroad.
Vulcanized EPDM rubber sealing strip is much stronger than PVC strip in terms of sealing elasticity durability. However, due to the need for microwave vulcanization line setting, the processing energy consumption is high, which is usually more than 20 times that of pvc processing.
Thermoplastic EPDM rubber sealing strip is a new material developed on the basis of imported technology from abroad and domestic independent research and development in recent years. It is mainly used in sealing strip for automobile window and door and has been used in building doors and windows sealing strip in recent years. Its outstanding advantages are: the performance and service life are equivalent to that of vulcanized EPDM rubber sealing strip; The processing energy consumption is lower than that of vulcanized EPDM strip; It does not contain heavy metals and can be recycled after several years, meeting the requirements of green building materials.
(Image Source: Hennessy doors and windows public number, invasion and deletion)
III. Hardware-the "heart" of system doors and windows"
if the system doors and windows are compared to adult bodies, the profile is the skeleton, while the hardware accessories are the heart, thus showing its importance.
1) Why can the hardware accessories of doors and windows affect the performance and service life of doors and windows?
With the improvement of life and the development of modern science and technology, building doors and windows have different ingredients, and the hardware accessories of doors and windows used for building doors and windows made of different materials are also different. Doors and windows are opened in three ways: push-pull, flat-open, and hanging. The hardware accessories of doors and windows used should also be consistent with them. Hardware accessories can be called the heart of doors and windows. The full play of all properties such as wind pressure resistance, air tightness, water tightness, thermal insulation, heat insulation and sound insulation of doors and windows is closely related to hardware accessories.
2) what parts are mainly included in door and window hardware?
(1) door lock in building: the lock installed on the door leaf and door frame of the building to be opened and closed. Generally, it consists of lock body (including lock bolt, door and window hardware, operating mechanism and brake mechanism), lock panel, handle, cover plate, etc.
(2) handle: used for opening and closing Casement. Generally installed in the middle of the edge of Casement, it is made of brass, low carbon steel, zinc alloy, stainless steel and other materials, with nickel plating, chromium or zinc on the surface.
(3) Dagger: used to position the open metal casement. It is generally installed at the lower edge of Casement, and some are also designed as a mechanism linked with the hinge.
(4) Hinge: it is the connecting piece of door and door frame, window and window frame, which can make the door and window rotate freely and open and close the door and window hardware. Hinge is formed by connecting leaf with pin shaft.
(5) door closer: an appliance that can automatically close or fix the opened door leaf at a certain position.
3) What needs should a good set of door and window hardware accessories meet?
(1) easy operation and single point control: various opening functions can be realized by changing the position of the handle;
(2) standardization and serialization, so that door and window enterprises and construction companies can quickly install;
(3) adjustability;
(4) strong load bearing;
(5) high security;
(6) strong applicability (high quality specifications).
(Image Source: Hennessy doors and windows public number, invasion and deletion)
IV. How to choose hardware accessories for doors and windows?
(1) when selecting hardware accessories, try to choose products with guaranteed quality. The quality grade of hardware accessories should be consistent with the quality grade of doors and windows. The Structure of hardware accessories, the shape should be consistent with the profile, matching in color beautiful appearance, correct function, flexible operation and convenient installation.
(2) the installation of hardware accessories should be complete, standardized, reliable and accurate. After installation, doors and windows have beautiful appearance, flexible and convenient opening, and no deformation, obstruction and collision are allowed.
(3) when opening doors and windows horizontally and closing sliding doors and windows with large size, multiple locking points should be adopted, otherwise the air tightness will be greatly reduced under the effect of negative pressure difference. Considering the convenient operation, it is better to use multiple locking points to handle or actuator.
Therefore, the selection of system doors and windows requires not only the consideration of profiles, hardware and other accessories, but also an important component. For example, Hennessy doors and windows are equipped with various advanced testing equipment, the materials and hardware accessories of the supply chain have to undergo rigorous testing, far exceeding the qualified rate of products in the industry. Only by choosing regular manufacturers can we provide more reliable quality assurance for various tests such as hardware accessories that have been tested for more than 200000 times.
