Patent Number: 6,294,763

Title: Apparatus for annealing welded parts and method therefor

Abstract: To prevent the temperature from rising locally in a closed space so as tomake the temperature in an annealing furnace uniform, an apparatus andmethod for annealing welded parts includes an annealing furnace 2 which issubstantially closed; a doorway 5 through which welded parts 4 are placedinto and out of the annealing furnace; a carriage mechanism 6 for carryingwelded parts on a predetermined course in the annealing furnace; infraredlamps 9 for heating welded parts carried in the annealing furnace; and acirculating mechanism 12 for circulating hot air in the annealing furnace.Thus, the annealing (distortion-eliminating) efficiency of the weldedparts is improved.

Inventors: Aono; Kazuhiro (Shizuoka, JP), Sakano; Kazuyoshi (Shizuoka, JP), Kageyama; Hiroyuki (Shizuoka, JP), Gyotoku; Seiichi (Shizuoka, JP)

Assignee:

International Classification:

Expiration Date: 09/25/2013