| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuous furnace for brazing aluminum products which enables uniform heating, without generating difference in heating temperatures between aluminum products placed on the uppermost rack and the lowermost rack, even if the aluminum products are superposed in multiple racks and air blowing speed of an atmospheric gas in a furnace is raised to some extent, and minimizes the variation in the concentration of the atmospheric gas in the brazing furnace so as not to inhibit the suppression of oxidation of flux. SOLUTION: The continuous furnace for brazing aluminum products is constructed such that at least a part of a wall 30 inside the furnace of the brazing furnace 20 is formed with a carbonaceous material, and the atmospheric gas in the furnace contacts to the inner surface of the carbonaceous material to react by a fan installed inside the brazing furnace 20 so as to keep the oxygen concentration in brazing furnace 20 low. The furnace is partitioned into a first zone 32 and a second zone 33 in the longitudinal direction by a partition wall 31 having an opening to have a first fan 37 installed in the first zone 32 and a second fan 42 installed the second zone 33, wherein the first fan 37 and the second fan 42 mutually send the atmospheric gas in the furnace from vertically opposite direction toward the aluminum products 28. COPYRIGHT: (C)2008,JPO&INPIT |
