Aluminum alloy door and window seal
In the past, plastic doors and windows were affected by the low-performance and poor quality sealing materials, and their quality and service life were greatly affected. Many quality problems occurred, which seriously damaged the reputation of the merchants. Especially used in the doors and windows of construction projects, it is hard and brittle, loses its elasticity and sealing function, and it is sticky and "leakage". When it loses its function, it pollutes the doors and windows and affects the appearance of doors and windows.
This phenomenon is attributed to the fact that enterprises have neglected the introduction and development of door and window accessories while improving the grade and performance of plastic doors and windows, resulting in the development of sealing materials lags far behind the development of plastic doors and windows. It is gratifying to note that high-quality door and window accessories, especially door and window sealing materials, are being accepted by everyone and gradually enter the door and window market.
Material condition of plastic door and window sealing strip
At present, the sealant strip materials used in foreign countries mainly include nitrile rubber, EPDM, thermoplastic elastomer (TPE), polyurethane elastomer (P), silicone rubber, etc., and have excellent aging resistance. The use rate of EPDM rubber is higher, reaching more than 60%.
Analysis on the development status of plastic door and window sealing materials in China
In recent years, in the market of domestic door and window sealing materials, the market share of plasticized polyvinyl chloride sealing strips has reached more than 90%, and the modified high-polymerization degree polyvinyl chloride and thermoplastic elastomer sealing strip market recommended by the relevant departments of the industry. The occupancy rate is extremely low, and most of them are concentrated in the surrounding areas of Beijing.
EPDM rubber was developed by Beijing Institute of Chemical Industry in the 1960s, but its application and development on doors and windows was only put on the agenda in the mid-1990s, and in 2000 by the Capital Aerospace Machinery Company rubber plastics. The product factory was developed and developed. In the latter part of the same year, it passed the acceptance of relevant experts from the Ministry of Construction. It is currently in the stage of mass production, but it is only used by some domestic high-end door and window manufacturers.
Compared with similar foreign products, the domestic EPDM rubber sealing strips are about 40% lower than the similar products in foreign countries, but they are still developing slowly. The reason is that the users have not realized that the sealing rubber strips account for a small proportion of the total cost of manufacturing the doors and windows. Only considering cost savings, did not consider the comprehensive benefits of using high-quality high-quality sealing materials.
H Ground Screws also called Screw Piles in some countries and it means Ground Screw Piles with helical blades. There are kinds of Ground Screw piles on our ground screw factory. The first type of Screw Pile is Ground Screw Pile with one helical blade, the second type of screw pile is ground screw pile with two pieces helical blades, the third one is screw piles with three pieces helical blades. But ground screw piles one piece helical blade is very popular with our customers because the friction with the ground is more than other types and many customers like this type of ground screw piles. Ground screw with helical blades can be used to Solar Ground Mounting System, garden decorations, farming fixing and so on.
Ground screw pile made in China and as one of producer of ground screw pile, we will recommend you two types of screw piles as your reference. One is about ground screw pile with one piece helix blade and another is about ground screw pile with two pieces helix blades, which both can be used to solar panel structures. As one type of solar screw piles, is very hot product on Finland and Thailand. It also be installed to the ground by Pile Driver as the support of solar panels or solar mounting systems. Screw piles as the related solar energy products are very hot sale products and they are very stable as supporting.
Some types of ground screw we exported can be used to construction field. Ground Screw with Nuts and Ground Screw with Flange, both types of ground screw will be installed if you want to use ground screw in construction field. We produce diameter 114mm-335mm of ground screw and length 1600-4500mm as your choose if you would like to purchase ground screw using to kinds of buildings. If you need these Ground Screw Anchors , please let us know, we will do some plans for you according to your requirements. In addition, Hot dipped Galvanized Ground Screw can not easy to be rust and it can be keep more than 25 years and the material of construction ground screw is Q235/Q235B/Q345 as your need.
H Ground Screw
H Ground Screws, Helical Screw Piles, Helical Ground Screw Piles, Helix Ground Screw, Ground Screw Pile, Steel Helical Piles, Screw Piles, Screw Pile
Hebei Honde Industrial Trade Imp&Exp Co., Ltd. , http://www.groundscrewpile.com