Aluminum production process problems that need attention and practical experience of some success, to engineering and technical personnel to provide technical reference, has a certain value in practice. Continuous extrusion of alumina hydrate aluminum production process produced severe dehydration during extrusion forming blisters. To prevent blisters, round aluminum extrusion itself may not have rolling crack; Do not store in a humid environment, the cleaning solution NaOH content of 30 ~ 100g / L is appropriate, to strictly control the cleaning liquid aluminum ion content. good quality prepared by impregnation method silane rare earth composite membrane Pole Which, by the first layer of the sample surface mounted dual - [3- (triethoxysilyl) silylpropyl] tetrasulfide (BTESPT) silane film, and then in rare earth cerium conversion coating film is deposited to obtain a silane rare earth composite film. Electrochemical, drip and salt spray test for corrosion resistance of aluminum Silane rare earth composite membranes were investigated. Although the use of welding to connect the aluminum and aluminum products, with only five or six years of history, but in that short time a few decades Pole supply manufacturers, has developed a comprehensive aluminum and aluminum alloy welding technology. Development of welding technology makes welding of aluminum and aluminum alloys can expand the scope. Now not only mastered the heat strengthened high strength duralumin various problems during welding and soldering method is suitable for aluminum and aluminum increased. Now, in addition to the traditional welding, resistance welding, brazing, pulse argon (helium) arc. Chen Force polarity parameter square wave AC tungsten arc welding, plasma arc welding, vacuum electron beam welding, vacuum brazing machine air protection and diffusion bonding and so can be easily welded aluminum and aluminum alloys. In most cases, the use of other materials used in the welding of ordinary equipment and processes, it can be welded aluminum and aluminum alloys, and sometimes require special equipment and technology. Supply aluminum pole price | Heshun Alcoa (certified) | Pole by Aluminum Co., Ltd. Jinan Heshun. Jinan Heshun Aluminum Co., Ltd. (www.jnhsly.com) (www.jnhsly.cn) Shandong Jinan, aluminum products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Aluminum in Heshun leadership with the staff warmly welcome all inquiries negotiations to create a better future for aluminum rolls.