The invention discloses a manufacturing process of ultra-thin wall tantalum capillary, in which the metal material tantalum is selected first, and the key processes include annealing process, drawing process and special drawing equipment. The beneficial effect of the invention is that after the above processing, several key technologies can be broken through to produce ultra-thin wall tantalum capillaries below 0.03mm.
The invention relates to a manufacturing process of ultra-thin wall tantalum capillary tube, The invention relates to a manufacturing technology of a metal capillary tube.In the metal capillary manufacturing industry, since the annealing process, the drawing process of tubes and the precise drawing machine are not mastered in the manufacturing of ultra-thin wall tantalum capillaries, the capillaries with an outer diameter of more than 6mm and a wall thickness of less than 0.03mm cannot be manufactured.
The purpose of the invention is to solve the shortcomings of the above technology, and to propose a manufacturing process of ultra-thin wall tantalum capillary tube, which can produce qualified ultra-thin wall capillary tube.
The key processes are as follows:
1, according to the annealing process requirements, according to the outside diameter and wall thickness of the annealing temperature should be controlled in 800-1200 degrees, the holding time between 5-15 minutes, the temperature difference in the annealing effective temperature zone should not be more than 10 degrees, the vacuum level of annealing should be above 10_4, natural cooling in vacuum;
2. Drawing process requirements: for the production of capillary tubes with wall thickness less than 0.1mm, the single elongation rate shall not exceed 10%, and the cumulative total elongation shall not exceed 20%;
3. Special stretching equipment is selected, and non-vibrating screw hydraulic tube extender is adopted to reduce the rupture problem during stretching.
[0009] the beneficial effect of the invention is that, after the above process processing and processing, the ultra-thin below 0.03mm can be manufactured.
Wall tantalum capillary.
