The brazing brass solder for various heating utensils which are manufactured with brass, copper or bronze has been used at the high temperature in the range of 850 to 950℃ for many hours, and repeatedly, but it had so many defects that it was unsuit...
The brazing brass solder for various heating utensils which are manufactured with brass, copper or bronze has been used at the high temperature in the range of 850 to 950℃ for many hours, and repeatedly, but it had so many defects that it was unsuitable industrially.
The main purpose of this investigation was the improvement of the heat resistant property of brazing brass solder.
The results obtained in this study on the excellent heat resistant property of brass solder at high temperature above 850℃, are as follows ;
1) It has high and optimum melting point near 870℃,
2) It has extremely good brazed surface resulting from a small surface tension and a good fluidity.
3) Pin holes are not formed because of retarding the dezincing phenomena at high temperature.
4) The temperature enduring for long time is above 900℃ as a result of high temperature diffusion of a alloying element, especially tin.