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Key Notes|Common sense you must know about door and window hardware! Hurry up
Time:2021-08-18 Browse: Source:Encyclopedia

Hardware accessories are the heart of doors and windows. Whether the heart is good or not directly affects the overall life of doors and windows. It is no exaggeration to use this sentence to describe the importance of door and window hardware accessories. Generally speaking, for a set of qualified and better doors and windows, the cost of hardware accessories accounts for 15%-30% of the cost of the entire window. Then, how should we identify such important hardware? The editor summed up some knowledge about door and window hardware, hoping to help you choose satisfactory doors and windows.


1. In addition to meeting the physical and mechanical properties of doors and windows, what other conditions should be considered for good door and window hardware?

In addition to considering the physical and mechanical properties of doors and windows, good door and window hardware should take into account:

(1) Convenient operation, single-point control: various opening functions can be realized by changing the position of the handle;

(2) Standardization and serialization, enabling door and window companies and construction companies to quickly install;

(3) Adjustability;

(4) Strong bearing capacity;

(5) High security;

(6) Widely used;

(7) Strong applicability (high-quality specifications).


2. How to choose and calculate door and window hardware accessories?

(1) When selecting hardware accessories, try to choose products with guaranteed quality. The quality level of hardware accessories should be consistent with the quality level of doors and windows. The structure and shape of hardware accessories should match the profile, the colors are coordinated and beautiful, and the functions are correct. Flexible operation and easy installation.

(2) The installation of hardware accessories should be complete, standardized, reliable, and accurate in location. After installation, the doors and windows have beautiful appearance, flexible and convenient opening, without deformation, obstruction and collision.

(3) The exposed fasteners of hardware accessories should be made of stainless steel.

(4) Multi-locking points should be used when closing side-hung doors and windows and large sliding doors and windows, otherwise the air tightness will be greatly reduced under the action of negative pressure. Considering the convenience of operation, it is best to use multi-locking point handles or actuators .


3. Should we consider the size of the window sash when we match the hardware?

need. Some owners like large window sashes and think that the ventilation effect is good. In fact, the ventilation effect of larger window sashes is not much different from that of smaller window sashes. And what are the disadvantages of oversized window sashes? One is that the excessive weight of the window sash increases the load of sliding braces, hinges, hinges and other accessories, increases friction, shortens the service life of the accessories, and increases the resistance of opening and closing. Second, when the window sash is opened and closed, the stroke of the handle lock is increased, and the arm needs to be extended more, which will also increase the difficulty of opening and closing and increase the risk.


4. How high is the door and window handle position suitable?

It is best to explain the position of the handle lock of the casement window when placing an order, so that the parameters can be adjusted in the design and processing. After all, it is customized according to the specific situation of the owner. How high is the position of the handle lock? There was a male owner who was 1.8 meters tall who liked to make it taller, but when the designer came to see his wife who was only 1.5 meters tall, he changed the plan. Indeed, when designing, it is necessary to understand the height of the female owner. Generally, the height of the female owner is 1.5-1.6 meters. If she wears slippers at home, it will be shorter. The lock is high. It is inconvenient for the female owner to open and close the window sash, especially the window sash. When driving to a large angle, the female proprietor’s body needs to stick out of the window, which is not only laborious but also dangerous. But too low is not suitable for male owners.

  Under normal circumstances, the height of the handle lock should be near the shoulder of the female owner, usually about 1.4 meters. If the female owner is taller, adjust it upward.


5. How to choose sliding support?

The sliding support must be rust-proof, because if it rusts, it will affect the smoothness of sliding and reduce the mechanical properties of the sliding support, which will lead to fracture. To have good corrosion resistance, it is necessary to choose high-grade stainless steel materials above 300 series, such as 304 stainless steel. This type of stainless steel has high corrosion resistance and high strength and toughness, while low-grade stainless steel with a 2 prefix, such as 201, 202 Although the price is low, the rust resistance is lower than that of the 300 series. And 304 stainless steel has higher wear resistance.

In addition, the thickness of the sliding support also affects the bearing capacity. When the window sash is heavier, it is best to choose a sliding support with a thickness of 2.5 or more.


6. Why does the hinge show grease after a period of time? ?

After the hinge has been operated for a period of time, the viscosity of the grease added in the hinge is reduced, and it is easier to flow out; at the same time, the shaft core and reel of the hinge will be worn to different degrees. When the wear is more serious, more black iron powder will be produced, Grease is blackened. Therefore, the greased hinge may have transparent or black grease flowing out sooner or later, depending on the oil used and the processing accuracy, which affects the appearance to varying degrees.


7. When talking about door and window hardware, which "five" gold does it refer to?

①Building door lock: the lock installed on the door leaf and door frame of the building that needs to be opened and closed. Generally, it consists of a lock body (including lock tongue, door and window hardware, operating mechanism and braking mechanism), as well as a lock panel, a handle, and a cover plate.

②Handle: used to open and close metal window sashes. It is generally installed in the middle of the edge of the window sash, and some are also designed as a linkage mechanism with the bolt and the door and window hardware. It is mostly made of brass, low carbon steel, zinc alloy, stainless steel and other materials, and the surface is plated with nickel, chromium or zinc.

③Baffle: used to position the opened metal window sash. It is generally installed on the lower edge of the window sash, and some are also designed as a mechanism for use with the hinge.

④ Hinge: also known as hinge. It is the connecting piece of door and door frame, window and window frame, which can make the door and window rotate freely to open and close the door and window hardware. The hinge is formed by connecting the blade and the pin shaft.

⑤ Door closer: an appliance that can automatically close or fix the opened door leaf in a certain position.


8. How to properly maintain the door and window hardware to make the service life longer?

①Stainless steel handles and other stainless steel "hardware" can be scrubbed with brightener to increase brightness.

② Hinges, hanging wheels, casters and other movable parts may reduce their functions due to dust adhesion during long-term movement. One or two drops of lubricating oil every six months can keep them smooth.

③Pay special attention to the direction in which the handle rotates and stretch, and avoid using force. It is especially important to teach children not to hang on the door handle and sway, which is prone to danger and may cause damage to the inner door. Once the lock is broken, the house basically seems to be undefended, and the security risks are very serious!

④ When the rotation of the lock core is not sensitive enough, scrape a small amount of black powder from the pencil core and blow it into the key hole lightly. This is because the graphite component is an excellent solid lubricant. Avoid dripping lubricating oil, because this will make it easier to adhere to dust.


9. Why can door and window hardware affect the economic performance of doors and windows and the life of the entire window?

There is also fierce market competition in the architectural door and window industry. One of the important ways to get rid of single price competition and create a benign market environment is to continuously enrich product functions and use technological advantages to expand product profit margins. The important link that can enrich the functions of doors and windows is the hardware accessories.

The quality of hardware also affects the life of doors and windows. Good hardware should look thick, and the surface gloss should be good, the protective layer should be dense, no scratches, the most important point is that the opening should be flexible.

With the improvement of life and the development of modern technology, building doors and windows are made of different materials. Nowadays, in residential construction projects, there are generally polyvinyl chloride (PVC), aluminum alloy, stainless steel, color steel and other materials, but different materials are made The door and window hardware accessories used in the building doors and windows are also different. The door and window opening methods are push-pull, flat-open, and top-hung. The door and window hardware accessories used should also be consistent with them. Hardware accessories can be called the heart of doors and windows. The full play of all the properties of doors and windows, such as wind resistance, air tightness, water tightness, heat preservation, heat insulation, and sound insulation, are closely related to hardware accessories.