For doors and windows, hardware accessories are the heart . The cost of door and window hardware accounts for about 15%-25% of a door and window. It is conceivable that the hardware is important to the entire door and window .
1.In addition to meeting the physical and mechanical properties of doors and windows, what conditions should be met for door and window hardware?
A.Convenient operation, single point control
B.Standardization and serialization can be installed quickly
D.Strong bearing capacity
2.How to choose door and window hardware accessories?
A. When selecting hardware accessories, try to choose products with guaranteed quality. The quality level of hardware should be consistent with the quality level of doors and windows.
The structure and shape of hardware should match the profile, coordinated and beautiful colors , correct function , flexible and easy to install .
B. The installation of hardware should be complete, standardized, reliable and accurate in positon. After installation, the doors and windows have beautiful appearance , flexible and convenient opening, without deformation, obstruction and collision.
3.What are the requirements for high-quality sliding supports in terms of materials?
The sliding support must be rust-proof . Because if it rusts, it will affect the smoothness of the sliding and reduce the mechanical properties of the sliding support, which will lead to fracture. In addition, the thickness of the sliding brace also affects the bearing capacity. When the window sash is heavier, it is best to choose a sliding brace with a thickness of 2.5 or more.
4.Which item does door and window hardware refer to ?
A.Door lock: the lock installed on the door leaf and door frame of the building that needs to be opened and closed .
Generally , it is composed of a lock body(including lock tongue, door and window hardware, operating mechanism and braking mechanism), a lock panel, a handle, and a cover plate.
B. Handle: 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 mechanism that connects the door and window hardware with the bolt. 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.
C. Support block : used to positon 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.
D. 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 hnge is formed by connecting the blade and the pin shaft.
E. Door closer: an appliance that can automatically close or fix the opened door leaf in a certain position.
The quality of hardware also affects the life of doors and windows. Good hardware should be gloss surface, dense protective layer and no scratches .
The important thing is that the opening should be flexible. The parts produced by the precision casting process meet most of the requirements of door and window hardware.
Gaocun Industrial Area, Hetang
Jiangmen, Guangdong, China