VERTICAL PUMPING APPARATUS AND METHOD FOR DISTRIBUTION MERCURY IN A PUMPING AND LAMP GAS-FILLING PROCESS

摘要

The present invention relates to a method of and a vertical pumping device (1) for internally distributing Hg in a fluorescent tube body (3). The bottom (7) of the fluorescent tube body (3) is closed. The device (1) arranges, in a first position, a first solid body (9') comprising a predetermined first amount of bound Hg. The device (1) arranges, in a second position, a second solid body (9") comprising a predetermined second amount of bound Hg. A first release (E1) of the first amount of Hg is achieved in the fluorescent tube body (3) by gasification with heat and under pressure for purification of contaminant particles in the fluorescent tube body. A second release (E2) of the second amount of Hg is achieved in the fluorescent tube body (3) by gasification attained for the occluded mercury vapour of the fluorescent tube body (3).