The invention relates to a method for
forging high-purity
niobium rods. The method comprises the following steps that the outer circumference of a
niobium ingot is subjected to turning, the turning size is based on the surface quality, steps are allowed to be included, and the steps are needed to be inclined and transitioned; and the
niobium ingot is forged on a
radial forging machine, the rollingreduction is 20-30mm, the pull-play speed is less than or equal to 1.5m / min, one-pull-play is carried out, reciprocating
forging is forbidden,
water pipe spraying cooling is started for a whole course, dynamic real-time
temperature measurement is carried out, the process temperature and finishing temperature are less than and equal to 330 DEG C, if not,
forging is stopped, billets are suspended away from forging equipment,
underwater cooling is carried out for 15-20min, reciprocating
jumping and moving up and down are carried out, the
underwater penetration is greater than or equal to 0.5m, the billets after
water cooling are continuous to be forged and formed on the
radial forging machine, the rolling reduction is 5-10mm, the pull-play speed is less than or equal to 1.2m / min, one-pull-play is carried out, reciprocating forging is forbidden,
water pipe spraying cooling is started for the whole course, after forging and forming, the billets are converted to a straightening
machine forstraightening during lingering warmth, tiling,
air cooling and material airing are carried out after straightening, and stacking is forbidden. According to the method for forging the high-purity niobium rods, no
bluing and peeling phenomenon exists on the surface, the surface quality is improved, the yield is improved, and the manufacturing cost is reduced.