LASER WELDING METHOD AND APPARATUS FOR SEALING A SEED CAPSULE

摘要

The present invention relates to a seed capsule laser sealing method and apparatus for melting an inlet of a seed capsule for sealing a radiation source I-125 by a laser in a state in which a cap is excluded and then sealing by a surface tension of a molten pool. It is about.;The seed capsule laser sealing device of the present invention is a spindle unit 30 for chucking and rotating the seed capsule 20, and an edge portion 24 of the inlet 22 of the seed capsule 20 rotated by the spindle unit 30. The laser head 40 for irradiating the laser beam (B) to form the molten pool 26 and the shielding gas (G) for preventing oxidation toward the welding portion of the seed capsule 20 The injection nozzle 60 and the head position adjusting mechanism 80 is installed on the main frame 70 to finely adjust the position of the laser head 40.;Therefore, according to the present invention, since the seed capsule can be sealed without the cap, productivity is improved, manufacturing cost is reduced, and operation is made simpler.;Radiation source, I-125, seed, laser, welding, sealing, collet, spindle, surface tension