Quartzite formed by different ore rocks can be distinguished according to structure, degree of crystal transformation, by-products, rock symbiosis combination and occurrence. For example, quartzite formed from single-mineral quartz sandstone has a coarse grain size and often has a typical balanced mosaic structure, containing more zircon and other secondary minerals; quartzite formed by siliceous rocks, even if subjected to high-grade metamorphism, minerals The particle size is also rarely greater than 0.2 mm and has a dentate intermetallic structure, generally free of secondary minerals. According to the quartz content, it can be divided into two categories: 1 feldspar quartzite, the quartz content is more than 75%, often containing minerals such as feldspar and mica, and the feldspar content is generally less than 20%. If the feldspar content increases, the transition to shallow granules. 2 Quartzite, quartz content greater than 90%, may contain a small amount of mica, feldspar, magnetite and other minerals. Brushed Aluminum Composite Panel Brushed Aluminum Composite Panel consists of two sheets of corrosion resistant aluminum permanently bonded to polyethylene core material. The surface of the front aluminum is brushed finish, including two kinds of brushed finish, long brushed aluminum composite panel and short brushed aluminum composite panel. At the same time, other performance indicators must also meet the technical specifications of aluminum composite panels. Alucobond Panel,Aluminium Panel Sheet,Aluminum Cladding Panels,Aluminum Plastic Composite Panel Shenyang Xiandai Jixiang Decorative Material Co., Ltd , https://www.modernbond-acp.com
The brushed aluminum composite panel is a manufacturing process in which the aluminum sheet is repeatedly scraped out by sandpaper, and the process flow is mainly divided into three parts: deesterification, sand mill and water washing.