Remanufacturing method of iridium crucible

The invention relates to the technical field of laser remanufacturing, in particular to a remanufacturing method of an iridium crucible. The problem that in the prior art, iridium needs to be subjected to manual grinding to eliminate a surface structure coarse layer or complete remelting, and the economic benefit is extremely low are solved. According to the technical key points, the remanufacturing method comprises the following steps that S1, photopretreatment is carried out on the iridium crucible to be repaired; S2, pure iridium powder for laser remanufacturing of the iridium crucible is prepared; S3, a process of laser remanufacturing of the iridium crucible is performed; and S4, post-light heat treatment and remanufactured part surface treatment are carried out. According to the remanufacturing method of the iridium crucible, the product defects of the iridium crucible are repaired, the product yield is increased, and the product service life is prolonged; and moreover, the remanufacturing problem of th