(3) staining solution concentration. Ze dyed concentration relationship is: a light-colored dye concentration may be lower, stained dark aluminum elbow, concentration can be higher. Typically, dye very light colors 0.1-0.39g / L supply aluminum elbow manufacturers, dye tinge of 1g / L, dyed a deep shade of 3-5g / L, dyed rich hues of 10-15g / L concentration is too high easily lead to uneven color or floating color phenomenon, in the cleaning and sealing treatment, could easily lead to the "flow of color." In order to enhance the good quality aluminum elbow Which color fastness, often with a low concentration and prolong staining time, the dye molecules fully penetrate deep into the pores of the oxide film, which would also help tone and fastness. 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 aluminum production process to produce alumina hydrate Which is cheaper aluminum elbow, 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. prepared by impregnation of silane rare earth composite film, by first assembling the sample surface layer Bis - [3- (triethoxysilyl) silylpropyl] tetrasulfide (BTESPT) silane film, then the film is deposited rare earth cerium conversion Silane rare film composite membrane was prepared. Electrochemical, drip and salt spray test for corrosion resistance of aluminum Silane rare earth composite membranes were investigated. Which is better _ aluminum aluminum elbow elbow _ provided by Jinan Heshun Heshun Aluminum Aluminum Limited. Jinan Heshun Aluminum Co., Ltd. (www.jnhsly.com) (www.jnhsly.cn) 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 aluminum into the brilliant and you work for a better future!