Metal working – Method of mechanical manufacture – Heat exchanger or boiler making
Patent
1995-01-30
1996-08-06
Chambers, A. Michael
Metal working
Method of mechanical manufacture
Heat exchanger or boiler making
29509, 165185, F28F 700, B23P 1100
Patent
active
055421768
ABSTRACT:
This invention is to provide a radiation plate which prevents a generation of resonance phenomenon and being suitable for automation. A plurality of groove are formed in parallel in a base, and a part of a fin consisting of a material having relatively low hardness such as a pure aluminum formed with an engaging portion with concave or convex portion is fitted to each of the grooves. The pressure is applied in perpendicular direction to the vicinity of the grooves of the base to form a pressure deformed portion, and the part of the fin is fixed to the wall surface of the groove of the base by the bonding force of the pressure deformed portion against the fin. Otherwise the engaging portion of a fin formed as convex portion is fixed in the groove of the base by means of the pressure force.
REFERENCES:
patent: 1680369 (1928-08-01), Dugan
patent: 5014776 (1991-05-01), Hess
patent: 5038858 (1991-08-01), Jordan et al.
Hayami Masayoshi
Serizawa Hideaki
Yokozuka Kunimoto
Chambers A. Michael
Lillie Raymond J.
Olstein Elliot M.
Serizawa Hideaki
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