Galvalume steel is also called Aluminum-Zinc Alloy Coated Steel, Zincalume steel, aluminized zinc steel (aluzinc steel), SGLC. The galvalume metal is composed of 55% aluminium, 43.4% zinc and 1.6% silicon solidified at a high temperature of 600 ° C. Its whole structure consists of aluminium-iron-silicon-zinc, forming a dense quaternary crystal of an alloy.From the point of view of the degree of coating, the Galvanized Steel Coil is mainly the zinc plated on the coating, while the coating of the galvalume steel coil not only has zinc, but also has an extra part of aluminum.Galvalume steel sheet (coil) has better atmospheric corrosion resistance.
Galvalume Steel Sheet has excellent characteristics: strong corrosion resistance, 3 times that of pure Galvanized Steel Sheet; the surface has beautiful spangles, which can be used as building exterior panels.
The corrosion resistance of "Galvalume Steel Coil" is mainly because of aluminum, the protective function of aluminum. When the zinc is worn away, the aluminum forms a dense layer of aluminum oxide, preventing corrosion-resistant substances from further corroding the interior.
Aluzinc Steel Coil,Aluminum-Zinc Steel Coil,Zincalume Steel Coil,Aluminized Zinc Steel Coil Shandong Guanzhou Iron and Steel Group Co., Ltd. , https://www.guanzhousteel.com
The pulley structure developed this time is such that the pin is mounted on a rotating shaft driven by a motor, and the rotating body is supported by a pin. A hinge member and a bearing are provided between the shaft and the rotating body. The pin is obliquely mounted in a direction in which the flat belt applies a force to the rotating body. Therefore, the rotating body can be tilted with the center of the pin as the axis. Thus, even if the flat belt is bent away from the center of the rotating body, the self-centering function of automatically returning the flat belt to the center by the tilt of the rotating body can be realized.
Previously, the V-belt or the like was inserted into the pulley groove to prevent the meandering track of the meandering from deviating from the rotating body. Therefore, the flat belt is subjected to load from the side, resulting in a decrease in transmission efficiency. If you use this technology, you will not be affected by the side load, which will increase the transmission efficiency to about 98% (when the input power is 10kW). The company originally developed a three-V-belt blower with a transmission efficiency of approximately 96%.
If this self-centering function is reversed, such as moving the pulley in parallel, the flat belt will automatically follow this movement. In this way, it can be applied to fields such as electromagnetic clutches and CVTs.
Japan developed a self-centering pulley for electromagnetic clutches and CVT
Bando Chemical Industries demonstrated the ability to automatically correct the flat belt position in contact with the rotating pulley at the Energy Conservation and Environmental Protection Exhibition 2007 (July 11-13, 2007, Tokyo Ariake International Convention and Exhibition Center). Power transmission mechanism (figure). The mechanism can also be seen as a "self-centering pulley" that aligns the pulley with the centerline of the flat belt. Commodities for the blower power transmission are scheduled to be launched during the year. In addition, it is also intended to be applied to fields such as electromagnetic clutches and CVTs.