1. What is the purpose of door and window seals?
1. Door and window sealing strips can be divided into three categories: glass sealing strips (rubber strip), door leaf cover sealing strips and top strips. Glass sealing strip is used for sealing between glass and fan frame.
2. Door leaf and door cover sealing strips are used for sealing between door leaf and door frame, and the top is mainly used for sealing between door frame and fan. In the production and installation of plastic steel doors and windows, broken aluminum doors and windows and wooden doors, sealing strips are indispensable accessories.
Second, what are the benefits of door and window sealing?
1. The sealing strip plays the roles of waterproof, sound insulation, dustproof, antifreeze and warmth retention in plastic steel doors and windows, broken aluminum doors and windows, and wooden doors and windows. It must have strong tensile strength, good elasticity, good temperature resistance and aging resistance. In order to ensure the fastening of the rubber strip and the profile, the cross-sectional structural size of the rubber strip matches the profile of the plastic steel door and window. Sealing strips are generally used for plane doors and windows, hanging windows and folding doors and windows. It also has the functions of dustproof, insect-proof, waterproof, sound insulation and sealing.
2. The top is generally installed on the sliding window (door) fan, around the frame fan or on the sealing bridge (windshield) to enhance the seal between the frame and the fan. Top specification is an important factor affecting the watertight performance of sliding doors and windows, and it is also an important factor leading to the opening and closing force of doors and windows. The top size is too large or the vertical hair is too high.
3, and the assembly is difficult, the movement resistance of doors and windows increases, especially the initial resistance when opening is greater than the final resistance when closing. The specification is too small, or the vertical top is not high enough, which is easy to go out of the groove, which greatly reduces the sealing performance of doors and windows.
4. There are two kinds of tops: silicified tops and non-silicified tops. Silicified tops have better effect in use. Top appearance quality is qualified, the surface is smooth, the bottom plate is smooth, there are vertical hairs, no bending, and the bottom plate is pockmarked, which meets the requirements of 0.2 mm
3. What are the purchase skills of door and window seals?
1, my friend took his nose to smell the smell. Normal PVC materials will have a little taste of ethylene glycol during use, and they can hardly be smelled.
2. Wrap the sealing strip around the profile as tightly as possible and leave it at high temperature for a period of time (on the roof or in a sunny place). See if there are stains and discoloration on the contact surface between the profile surface and the sealing strip, if the dust on the sealing strip surface turns yellow (it is easy to absorb oily soil), and if the hands are dirty.
3. In fact, some cheap sealing strips will have a lot of fillers, so the surface of sealing strips for doors and windows will not be very bright, and those cheap and dull are not desirable.
4, look at the specific gravity, how many meters can be produced per kilogram. Many manufacturers have made great efforts in using fillers. In order to pursue greater output, they use talcum powder and heavy calcium as fillers, which also increases the proportion of sealing strip products and invisibly increases the cost. A small amount of white powder will appear on the surface of the calcium-containing sealing strip after being stretched several times by hand.
After you understand the above article, there are many things about door and window seals, such as the wide scope of application of door and window seals. In addition, if you want to know more about home improvement, please continue to pay attention to us.