| 摘要 |
A brazing method for joining two or more pieces of metal together comprising running a molten brazing solder into a space between the pieces, characterised by the step of heating at least the adjacent surfaces of the pieces to be joined to brazing temperature in a reducing atmosphere and by the step of preheating at least the adjacent surfaces to about 600 DEG C in an oxidising atmosphere prior to said heating to brazing temperature. <IMAGE> |
