Jungle Aluminum Successfully Developed 5083 Alloy Secondary Extrusion Annealing Process

According to the bulk non-ferrous net reprint: In 2015, Junlin Aluminum Foundry Department was guided by “optimize production process and improve product quality”, increase product research and development efforts, enhance research and development capabilities, improve product quality, and resist market competition. Sales risk. In order to better meet the changing needs of customers, recently, Junlin Aluminum Technology Vice Minister Shou Shouwen Organization Technology Technology Department personnel carried out a series of technical research and development work, in which the 5083 alloy secondary extrusion test, made a breakthrough.

5083 is a non-heat-treatable alloy that is excellent in strength, corrosion resistance, and machinability among Al-Mg alloys. According to related data, the secondary extrusion test performed this time not only improved the strength and elongation of the alloy, but also improved the fracture toughness of the alloy. The technical difficulty of secondary extrusion is the formulation of the annealing process. If the temperature is too high, the grains are likely to grow up. Once burned, they can only be scrapped. If the temperature is too low, the purpose of eliminating stress and reducing the extrusion resistance can not be achieved.

In response to the above problems, the company's Ministry of Technology and Technology determined through research and discussion that optimization was made from four aspects: chemical distribution ratio, original tissue morphology, microstructure and hardness after one extrusion, and three different temperatures and different times of sample testing. After the optimum temperature and time were determined, the entire batch was extruded at one time for annealing. The annealed bar was extruded on an 880T extruder. Compared to a single extrusion, the metallurgical structure was even and fine, the extrusion resistance was reduced, the extrusion speed was increased by 40%, and the mechanical properties were also improved by 10%. The production efficiency guarantees the product quality at the same time. At present, the annealing process has been used for normal production and has achieved good results.

The success of the research and development of the alloy process has strengthened the confidence of Junlin Aluminum with the goal of “technology innovation driving technology research and development, technology research and development to enhance productivity, and productivity to promote enterprise development”. In the future, Jungle Aluminum will continue to improve its ability in technology research and development and technology reserves, promote the overall improvement of the company's overall efficiency, and provide technical support for the smooth realization of the three-year business goals.