Refers to the use of aluminum or aluminum alloy material is processed into aluminum (cut or sawn) obtained by the pressure of a rectangular cross section, good quality material thickness uniform rectangular molds for aluminum Which, aluminum heat treatment during the following note matters: precision machining parts pretreatment process issues that need attention: precision machining parts, although the natural oxide film surface was beginning to generate, easier to clear long-term supply of molds for aluminum, but greasy heavy, especially within and around the hole (due machine lubrication process needs to add), this type of workpiece must be cleaned by an organic solvent, if not only the direct use of caustic heavy greasy addition to the net hard and fine machining surface can not afford a long period of alkali corrosion, but also affect the results to the workpiece surface roughness and tolerances with, may eventually become waste heat treatment or welding process workpiece pretreatment process issues that need attention: according to process requirements, the workpiece into the subject of organic solvents or heat treatment before welding process cleaning, in addition to the net surface oil, but in general this is not possible, so the surface to form a layer of oil fired char molds for aluminum, this layer of char in an organic solvent is in addition to the net hard, if soaked in lye will cause localized corrosion of aluminum molds for domestic professional manufacturers, pitting or cause uneven, seriously affecting the quality of products. aluminum manufacturers usually soaked with concentrated nitric acid method to this layer of coke material soaked until soft coking matter after then a little cleaning in lye that can completely Ex-term supply of molds for aluminum, molds for aluminum, aluminum rolls provided by the Aluminum Co., Ltd. Jinan rolls. Jinan Heshun Aluminum Co. (www.jnhsly.com) strong, credible, in Jinan, Shandong aluminum products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead rolls in aluminum and you hand into the brilliant, for a better future!