Title:
熱交換方法，熱交換媒体および熱交換装置，ならびにパテンティング方法および炭素鋼線
Document Type and Number:
Japanese Patent JP7161735
Kind Code:
B2
Abstract:
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.
Inventors:
Kazuhiro Ishimoto
Kawamura Noto
Kawamura Noto
Application Number:
JP2020569632A
Publication Date:
October 27, 2022
Filing Date:
January 28, 2020
Export Citation:
Assignee:
Tokyo Rope Co., Ltd.
Kumamoto University, a national university corporation
Kumamoto University, a national university corporation
International Classes:
C21D1/48; C21D9/64; C22C23/00; C22C23/02; C22C30/00
Domestic Patent References:
| JP2016023334A | ||||
| JP164161C1 | ||||
| JP2011522113A |
Foreign References:
| CN108467927A |
Other References:
平井伸治ほか,“Mg-Al合金浴浸漬法による鋼材表面への低Al濃度Fe-Al合金層の形成”,日本金属学会誌,第59巻,第3号,日本,1995年,p.284-289
Attorney, Agent or Firm:
Tokyo uit international patent corporation