Loading patent…
AssigneesTokyo Rope Manufacturing Co., Ltd., National University Corporation Kumamoto University
InventorsKazuhiro ISHIMOTO, Yoshihito KAWAMURA
Estimating the term…
The present invention provides a novel heat exchange medium to replace lead. A carbon-steel wire 1A heated in a heating furnace 11 is passed through a bath 12A filled with a liquid-phase Mg—Al—Ca alloy 20 obtained by melting a Mg—Al—Ca alloy in which the main constituent elements are Mg (magnesium), Al (aluminum) and Ca (calcium). When it passes through the bath 12A, the carbon-steel wire 1A, which has been heated for example to about 950° C. in the heating furnace 11, is cooled to about 550° C. The Mg—Al—Ca alloy is non-toxic and has no environmental impact as well.
A heat exchange method comprising:
A heat exchange medium including a liquid-phase Mg—Al—Ca alloy obtained by melting an Mg—Al—Ca alloy in which Mg, Al and Ca are the main constituent elements.
A heat exchange apparatus having a bath filled with a liquid-phase Mg—Al—Ca alloy obtained by melting an Mg—Al—Ca alloy in which Mg, Al and Ca are main constituent elements.
A patenting treatment comprising:
A carbon-steel wire obtained by being subjected to a patenting treatment using a liquid-phase Mg—Al—Ca alloy, and to a drawing process.
Dependencies are inferred from the claim text.