Method and apparatus for convection brazing of aluminum heat exc

Details Method and apparatus for convection brazing of aluminum heat exc Method and apparatus for convection brazing of aluminum heat exc

1991-09-25

1993-03-23

Yuen, Henry C.

Metal fusion bonding

Combined

228 43, 228183, 228200, 432185, 432194, B23K 100

Patent

active

051956730

ABSTRACT:
A convection braze furnace for brazing aluminum heat exchangers in an inert gas rich atmosphere includes entrance and exit vestibules forming atmosphere barriers of suspended stainless steel strips. The interior of the braze furnace is divided into multiple zones for progressively heating the heat exchangers to a brazing temperature and then cooling the heat exchangers in the final zone. An impeller circulates the heated intent gas atmosphere within each zone to accelerate heat transfer. A chain type conveyor supports the heat exchangers as they are moved through the braze furnace. An isolated return tube surrounds the lower return side of the conveyor chain as it passes through the braze furnace. The braze furnace housing is comprised of inner and outer shells having an inert gas pressurized interstitial cavity therebetween. The inner shell includes a plurality of expansion strips having generally ellipsoidal corner expansion joints.

REFERENCES:
patent: 1529621 (1925-03-01), Hagan
patent: 3426668 (1969-02-01), Hofmeister et al.
patent: 3528359 (1970-09-01), Sand
patent: 3756489 (1973-09-01), Chartet
patent: 3882596 (1975-05-01), Kendziora et al.
patent: 4011041 (1977-03-01), Taylor
patent: 4188862 (1980-02-01), Douglas, III
patent: 4501387 (1985-02-01), Hoyer

Affiliated with

Also associated with

Rating

Method and apparatus for convection brazing of aluminum heat exc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for convection brazing of aluminum heat exc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for convection brazing of aluminum heat exc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1346292