Aluminum casting (ZL) by major elemental silicon components other than aluminum, copper, magnesium, zinc divided into four categories Shandong motorcycle recycling, code coding respectively 100,200,300,400. In order to obtain a variety of shapes and sizes of high quality precision castings, aluminum alloy for casting generally have the following characteristics. (1) is filled with good flowability slot slit portion (2) has a lower melting point than the metal, but a great portion of the case to meet the requirements of good (3) thermal conductivity, heat of the molten aluminum to the mold to quickly transfer When casting cycle is short (4) Melt hydrogen and other harmful gases can be effectively controlled (5) by aluminum casting process, no heat brittle cracking and tearing tendency good (6) chemical stability, Strong erosion resistance (7) is not easy to produce surface defects, the casting surface with good surface finish and shiny, and easy to carry out surface treatment (8) processing performance cast aluminum, usable die, die, green sand and dry sand mold , lost wax casting plaster casting mold production, can also be vacuum casting, low pressure and high pressure casting, squeeze casting, semi-solid casting, centrifugal casting, molding method, the production of different purposes, different kinds of casting different specifications, different performance. Silicon carbide has a corrosive effect on. While the general will be more than 12% Si aluminum alloy called high silicon aluminum alloy, it is recommended to use diamond tools motorcycle recovery, but not absolute, the silicon content gradually increased the destructive power of the tool is also gradually increasing. Therefore, some manufacturers in the silicon content of more than 8% on the recommended use of diamond tools. Aluminum silicon content of between 8% -12% of a transition zone, both can use ordinary carbide Hubei motorcycle recovery, you can use diamond tools. But the use of carbide should be used by PVD (Physical layer) method, no aluminum elements, the film thickness of smaller tools. Because PVD method and a small film thickness of the tool to maintain a more sharp cutting edge as possible (otherwise, avoid abnormal growth at the edge of the film needs to be sufficient edge passivation, cutting aluminum will not sharp) while the film material containing aluminum may damage the blade and combined film and substrate film cutter and workpiece material cooperation with the pro. Superhard coatings because more aluminum compounds, nitrogen, three of titanium, cemented carbide substrate may be due to a small amount of flaking caused by chipping over the film when peeled. Motorcycle recycling scrap metal recycling _ _ Shengxin Hebei motorcycle Recycling scrap metal from the Linyi City Shengxin Limited. Motorcycle recycling scrap metal recycling _ _ Shengxin Hebei motorcycle recovery Linyi City Shengxin scrap metal recycling Ltd. (shengxin.tz1288.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or image on the telephone, to obtain the latest information, contact: Zhu new.