| 摘要 |
<p>The present invention relates to a method for manufacturing a flexible piping device for an exhaust gas system of a motor vehicle, said method comprising the steps:
a) forming a wound metal hose (1) from at least one profiled metal strip (2), so that strip edges of adjacent strip windings (3) movably interlock;
b) exposing said wound metal hose (1) to heat; and
c) assembling the flexible piping device from said wound metal hose (1) and from other components.
In order to further reduce or eliminate an ageing function of the flexible piping device to allow the user of the flexible piping device to receive functionality and properties over lifetime at similar condition, the present invention provides that step b) includes subjecting the wound metal hose (1) to quenching.</p> |
