Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1981-04-02
1983-03-22
Husar, Francis S.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
228183, 228180R, B23P 1526, B23K 3102
Patent
active
043770240
ABSTRACT:
A method of making a heat exchanger of the type used in vehicle radiators and having a core of spaced welded, as contrasted to lock-seam, tubes and interconnecting fins connected to spaced liquid tanks. The method, which permits machine-operated mass production of these exchangers, comprises stacking solder-coated core tubes in vertically spaced sets of a plurality of essentially horizontal tubes with serpentine fins located between each vertical pair of tube sets, arranging a top and a bottom rigid support plate against each of the topmost and bottommost tube sets, applying compression to the resulting stack through the support plates, banding the stack into an easily handled rigid assembly, applying a header plate to each essentially vertical side of the assembly with the tube ends extending through corresponding holes in the header plates, gang welding the projecting ends of the tubes to the exterior of the respective header plates by means of a movable multi-head automatic welder, dipping this core assembly into a liquid soldering flux dip, blowing heated air at a temperature above the melting point of the solder over the outer surfaces of the core assembly to bond the fins to the tubes, applying a solder sealant coating over the adjacent junction areas of tubes and header plates that are opposite to the welds, the welds thereby being on the liquid side and the solder on the air side and finally removing the support plates and bands from the core and attaching the enclosing tanks to the header plates in fluid tight relation.
REFERENCES:
patent: 3769675 (1973-11-01), Chartet
patent: 3941293 (1976-03-01), Chartet
Husar Francis S.
Modine Manufacturing Company
Rising V. K.
LandOfFree
Method of making a heat exchanger 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 of making a heat exchanger, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a heat exchanger will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1865101