Process for forming unusually strong joints between metals...

Details Process for forming unusually strong joints between metals... Process for forming unusually strong joints between metals...

B - Operations, Transporting

23

K

25/123

B23K 31/02 (2006.01) B23K 35/00 (2006.01) C04B 37/02 (2006.01)

Patent

CA 1259780

PROCESS FOR FORMING UNUSUALLY STRONG JOINTS BETWEEN METALS AND CERAMICS BY BRAZING AT TEMPERATURES THAT DO NOT EXCEED 750°C Abstract of the Disclosure This invention is a process for joining metals to ceramics to form very strong bonds using low brazing temperature, i.e., less than 750°C, and particularly for joining nodular cast iron to partially stabilized zirconia. The process provides that the ceramic be coated with an active metal, such as titanium, that can form an intermetallic with a low melting point brazing alloy such as 60Ag-30Cu-10Sn. The nodular cast iron is coated with a noncarbon containing metal, such as copper, to prevent carbon in the nodular cast iron from dissolving in the brazing alloy. These coated surfaces can be brazed together with the brazing alloy between at less than 750°C to form a very strong joint. An even stronger bond can be formed if a transition piece is used between the metal and ceramic. It is preferred for the transition piece to have a coefficient of thermal expansion compatible with the coefficient of thermal expansion of the ceramic, such as titanium.

495629

Affiliated with

Also associated with

Rating

Process for forming unusually strong joints between metals... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for forming unusually strong joints between metals..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for forming unusually strong joints between metals... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1294119