Titanium processing plants produce processed materials according to the current process, and the residual titanium produced accounts for about 40% of the input amount. The degree of residual titanium recycling is one of the key factors affecting the cost of processed materials. After years of work, great achievements have been made in the recycling of residual materials; rapid identification of the residual materials, crushing, descaling, degreasing, removing high-density inclusions, electrode preparation methods for adding residual materials, and melting processes have been solved A series of problems formed a complete set of residual material recovery and utilization tools to make various shapes of residual material can be recycled. In pure titanium ingots, the amount of residual titanium added has reached 20-30%. Using this process, more than 1,000 tons of residues have been recovered, so that the overall utilization factor reached about 1.5. In addition to the self-consumption arc furnace recovery of residual materials, a certain amount of experience has been accumulated in the use of plasma furnaces and condensing furnaces to recover residual materials. Hydrogenation and electron beam furnace melting have also been successful in recovering residual materials. At the same time, the use of residual materials has been extended to the steelmaking and smelting industries. In this way, all types of residual titanium have been recycled. The recycling of residual titanium in publishing processing plants has been basically solved.
At present, there are mainly four units engaged in the production of titanium processed materials in China. The production capacity of the processed material currently depends entirely on the production capacity of the ingot. The annual output of titanium processing materials has reached more than 1,000 tons, 18 alloy grades for industrial production, and 16 for industrial trial production. Although more than 80% of the current titanium processing materials are pure titanium, the alloys included in the national standard of Hequan and industrial trial production have undergone a lot of research and trial production. As long as necessary, these alloys can be produced according to requirements. The varieties of processed materials include plates, strips, foils, rods, tubes, wires, and various cakes and ring forgings, most of which are medium-sized products. In recent years, the rapid growth of titanium in the world, wide coils for welding pipes, large-scale forgings, and various profiles, etc., are still domestically added equipment and technical transformation before production. However, the size of the specifications and the increase of varieties have potential. As long as there is a need, the titanium processing plant can try to solve it.
In the development of titanium processing, we have not only formed a commonly used set of internationally produced alloy grades, varieties, and specifications, but also developed direct extrusion of ingots, anti-oxidation coatings, electrolytic removal of scale, and pipes. Warm rolling, titanium-copper composite rods and explosive compounding and rolling processes, most of which have been practically applied in production. For example, hundreds of tons of titanium-steel composite plates have been produced by the explosive compounding process, which has a good effect and plays an important role in the promotion of titanium materials.
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