Usually, the large single weight titanium rod material determines the total length of the finished tray material of the drawable titanium wire. The longer the total length of the titanium wire coil material, the better the consistency of its quality, which plays a decisive role in the realization of unmanned high-speed continuous production by downstream processors. For example, when the ultra-long titanium wire reel material is processed by CNC lathe for titanium screws or nuts, it can achieve long-term processing, which is not easy to interrupt, and the production efficiency is significantly high, so the quality and technical indicators are consistent. This is very important for the large-scale continuous production of aerospace parts or automatic lathes. In the prior art, the main processes of titanium wire preparation are peeling, grinding, drawing (using graphite lubrication), oxidation, drawing, alkali pickling, finished product annealing 3 to 4 times, whole disk, vacuum or atmospheric annealing. The shortcomings of the process, one is only limited to a single weight of less than 10kg disc heavy titanium wire, 2 people control a equipment, low efficiency, surface finish is not high, can not produce large single weight ultra-long titanium wire, can not meet the needs of high-speed long-term continuous processing of CNC processing equipment. In particular, it cannot meet the requirements of unmanned automatic production. Second, the alkaline pickling process steps harm the environment, is not environmentally friendly, the performance is not stable, and the surface finish is not high. Therefore, the production of large single weight high-performance titanium and titanium alloy bright disk wire is still a problem, and the product is blank.
After a lot of research and experiments, the multi-mode and multi-pass cold drawing technology is scientifically summarized, and the continuous cold drawing technology suitable for titanium and titanium alloy wire is found. The technique adopts multi-mode and multi-pass continuous drawing. The use of this technology processing efficiency, yield, energy-saving fruit have been greatly improved to meet the national environmental requirements, to achieve the production of large single weight bright titanium and titanium alloy wire demand. In the titanium and titanium alloy performance testing technology, the development of macroscopic inspection method, microscope method, laser caliper and other methods to solve the physical and chemical properties of titanium alloy wire detection, so that product quality is effectively controlled.
Therefore, the invention changes the traditional silk production mode in the past, reduces the production pass and reduces the energy consumption. The production efficiency and yield of large single weight high-precision bright titanium and titanium alloy wire for standard parts and fasteners are greatly improved, and the intangible loss is reduced. At the same time, through strengthening the production process control, product quality, stability and consistency can be improved to meet more customer needs.
