Foshan City gives priority to supporting common technology development enterprises in the industrial aluminum industry to declare special funds

Recently, it was learned from the Municipal Bureau of Science and Technology that in 2009, the special fund project for the development of science and technology in Foshan City was formally launched. This year, the government's financial support will be tilted toward the four major areas of industrial aluminum industry common technology, ceramic industry common technology, energy conservation and emission reduction, and public safety science and technology support.

Foshan is the world's most concentrated area for aluminum products, production capacity, talents and technology. With centralized production capacity, galaxy of talents, advanced equipment, advanced technology, complete facilities, and cluster development, Foshan has become a global aluminum production and processing center. Foshan has a high concentration of aluminum industry, a complete industrial chain, and strong supporting industries. It has formed a large industrial cluster with obvious industrial scale advantages and brand advantages. However, the aluminum industry in Foshan is still dominated by building profiles. The proportion of high value-added aluminum products is small, and the technical and economic indicators are not high. The gap between the overall technology and equipment level and the international advanced level is still relatively large.

At present, the development of Guangdong's aluminum industry is undergoing an important transformation period. While continuing to maintain Foshan's superior architectural aluminum extrusion processing industry, it is also necessary to accelerate the development of high-value-added, high-tech industrial aluminum processing to cope with the international financial crisis. Impact, an important measure for transforming the company from a production-growth-type to a quality-benefit-type, and then to a technological innovation.

Based on this background, the city's science and technology department determined that this year will give the key support to overcome the "common technology of industrial aluminum industry."

It is understood that this project is based on the research and development needs of the “Aluminum Industry Technology Roadmap of Guangdong Province” to determine the “research and application of high-performance, high-precision, ultrafine microstructure aluminum alloy materials” and “development and application of infrared heating equipment”. 4 major research and development topics.

Topic 101: Research and Application of High Performance, High Precision, Ultra-fine Microstructure Aluminum Alloy Materials

Research content: Studying the design and optimization of new environmentally friendly free-cutting alloys for diversified micro-alloy compositions, studying hot-working processes and heat-treatment processes, greatly improving the processing yield of alloy materials, and replacing imported products; through high-precision profile mold design and manufacturing technology , Online quenching cooling control technology, profile extrusion process optimization and fine-tuning technology to achieve the production of high-precision industrial profiles; research mechanism of high-performance aluminum alloy microstructure during thermal processing and the formation of coarse-grained rings, through optimization of alloy chemistry Composition, graded homogenization treatment, graded solution treatment, and reverse extrusion process enable fine grain crystallization of the alloy.

Project requirements:
(1) High-performance lead-free free-cutting 2 series aluminum alloy materials: tensile strength σb: 420 MPa, yield strength σ 0.2: 360 MPa, elongation δ: 12%; mechanical properties, cutting performance, and corrosion resistance all reach the conventional The level of lead containing alloy 2011, the product passed the EU ROHS test standards, product performance has reached the leading domestic level;

(2) Establish an extrusion production line for lead-free free-cutting 2 series aluminum alloy products for the electronics industry, which can achieve an annual production value of 20 million yuan.

(3) High-precision aluminum alloy profiles: Twisting degree per unit length ≤ ± 0.2mm; accuracy tolerance range of assembly size parts ≤ 0.2mm; accuracy range of wall thickness tolerance ≤ 0.2mm; production line for establishing high-precision aluminum alloy profiles for the automotive industry , To achieve an annual output value of 60 million yuan.

(4) Ultra-fine microstructure 6061 aluminum alloy material: The average grain size of the material is more than 50% more than the products produced by ordinary methods, reaching 30μm, which is at the leading domestic level; the material does not produce coarse-grained rings, and the aluminum alloy extrusion processing is solved. The world's problems; the establishment of a 6061 aluminum alloy product line for the automotive industry, with a sales volume of 1,000 tons per year, and a production value of 35 million yuan per year.

Topic 102: Development and Industrial Application of Aluminum Extrusion Porous Die Design Technology

Research content: elastic deformation law of porous mold working conditions and flow characteristics of metal extrusion process, reasonable design of mold structure; mold hole design of porous mold, selection of number of mold holes and arrangement of mold holes to ensure The strength and rigidity of the mold are in line with the production needs. The number of die holes should be selected to ensure that there are enough extrusion coefficients to ensure the mechanical properties of the material. The design of the die hole avoids the deformation of the length of the profile, wave, distortion, etc. Center symmetry principle ensures mold strength and profile quality; reasonable mold machining process line, study the influence of various parts of mold hole on metal flow rate, adopt advanced technology for mold processing, improve mold machining accuracy; introduce double traction system to avoid profile Different lengths ensure smooth extrusion and reduce the chance of scraping each other.

Project requirements:

1, equipped with no less than 10 sets of advanced double traction system demonstration extrusion production line;
2. The implementation unit has established a mold processing and manufacturing center, equipped with advanced complete sets of mold processing equipment, and organized a special design research team;
3. The total number of porous moulds put into use and testing shall not be less than 500 sets;
4. Establish long-term cooperation mechanism with well-known colleges and universities.

Topic 103: Development, Application and Promotion of Isothermal Rapid Extrusion Technology and Equipment

Research content: Through the research and development of the closed-loop control of profile temperature and speed in the extrusion process, a closed-loop control system for profile exit temperature-extrusion speed was established to achieve isothermal extrusion.

Project requirements:

1. Profile outlet temperature difference: ± 10 °C; profile extrusion speed increased by more than 1 times, production costs reduced by more than 15%, extrusion energy consumption reduced to 100Kg standard coal / tons of profiles below;
2. The target product is to realize large-section high-performance aluminum profile products for transportation industry in large-scale extrusion machine production lines, establish demonstration production lines with an annual production capacity of 5,000 tons and an annual production value of ≥ 150 million yuan;
3, declare a company must have superior technology and equipment foundation.

Topic 104: Development and Application of Infrared Heating Equipment

Research content: Using infrared heat source instead of resistance wire heating to develop mold heating equipment

Project requirements:
1, compared with the resistance heating furnace, saving more than 40%;
2. Shorten the heating time by more than 30%;
3, the mold temperature uniformity is good, the error range is controlled within ± 5%;
4, to avoid burning mold and generate oxide skin;
5, the establishment of mold infrared heating equipment more than four.