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Patent Searching and Data


Title:
MANUFACTURE OF FLAT TUBE, EQUIPMENT FOR MANUFACTURING STRIP FOR FLAT TUBE, AND THE FLAT TUBE
Document Type and Number:
Japanese Patent JPH0985334
Kind Code:
A
Abstract:

To provide a method for manufacturing a flat tube capable of easily manufacturing an embossed flat tube at a low cost, and a manufacturing equipment related thereto.

A method and an equipment for manufacturing an embossed flat tube is provided with a) a process in which an endless sheet metal strip is introduced into a nip 49 of emboss rolls 2, 3, b) a process in which the emboss is formed by the emboss roll 3 on the endless metal strip in the nip 49 while the embossing work is temporarily stopped in an adjustable manner, c) a process in which the distance of clearance of the nip 49 between the emboss rolls 2, 3 is changed through temporary stop to form a non-embossing area between the embossed area, d) a process in which the embossed endless sheet metal strip is rolled into a closable endless flat tube, e) a process in which the endless flat tube is closed, and f) a process in which the flat tube is separated from the closed endless flat tube in the non-embossing area.


Inventors:
Brede, Peter
Application Number:
JP1996000119407
Publication Date:
March 31, 1997
Filing Date:
May 15, 1996
Export Citation:
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Assignee:
HELMUT LINGEMANN GMBH & CO
International Classes:
B21C37/15; B21C37/083; B21D13/04; B21D22/02; B21D31/00; B21D53/04; F28F1/02; (IPC1-7): B21C37/15; B21D22/02; B21D31/00