Title:
METHOD AND DEVICE FOR FILLING EASILY CORRODIBLE GAP OF HEAT EXCHANGER OR LIKE
Document Type and Number:
Japanese Patent JPS55102894
Kind Code:
A
Abstract:
To fill up the ring-shaped gaps between the tubes and fins of a tube and fin type heat exchanger with a corrosion protective hardenable filler, a unit made up of two closing pieces with filler material between them is pushed by means of the tube to be inserted in the stacked fins through the space formed by the collars of the openings in the fins which are stacked together for assembly into a heat exchanger. On passing this unit through the stacked fins the ring-shaped gaps are filled up with the filler material. The remaining thin film on the collars is also forced into the ring-shaped gaps when the tubes are subsequently expanded. A device for carrying out the process comprises a sleeve with a mandrel which slides inside the sleeve and forms a seal with the sleeve and a piston which likewise slides in the sleeve and forms a seal therewith and which lies ahead of the mandrel forming a space which can be varied in size and which accommodates the filler material. This device is positioned at and in line with a cylindrical space formed by the collars of the stack of fin material and the unit comprising the piston and mandrel with filler material between them is pushed out of the sleeve and through the cylindrical space formed by the stacked batch of fins.
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Inventors:
KAARU MATSUKU
TSUDENEKU MARII
TSUDENEKU MARII
Application Number:
JP1139380A
Publication Date:
August 06, 1980
Filing Date:
February 01, 1980
Export Citation:
Assignee:
ALUSUISSE
International Classes:
B05C7/06; B21C37/22; B23P19/02; F28F1/10; F28F19/00; (IPC1-7): F28F19/00
Previous Patent: JPS55102893
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