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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10583488 B1

PDFFull Text
Date of Patent:
Mar. 10, 2020

Filed:

Mar. 04, 2016

Manufacturing method for magnetic freezing module

Applicant:

Santoku Corporation, Kobe-shi, Hyogo, JP;

Inventors:

Takehiko Kikkawa, Kobe, JP;

Hiroaki Takata, Kobe, JP;

Assignee:

SANTOKU CORPORATION, Kobe-shi, Hyogo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Adam Krupicka

Int. Cl.
CPC ...
B22F 3/24 (2006.01); C22C 38/04 (2006.01); C22C 38/00 (2006.01); F25B 21/00 (2006.01); H01F 1/00 (2006.01); C22C 33/02 (2006.01); B22F 5/00 (2006.01); C22C 1/04 (2006.01); B22F 3/14 (2006.01); B22F 3/16 (2006.01); C22C 33/04 (2006.01); C22C 38/02 (2006.01); H01F 1/03 (2006.01); H01F 41/02 (2006.01); B22F 9/04 (2006.01);
U.S. Cl.
CPC ...
B22F 3/24 (2013.01); B22F 3/14 (2013.01); B22F 3/16 (2013.01); B22F 5/00 (2013.01); C22C 1/0441 (2013.01); C22C 1/0483 (2013.01); C22C 33/02 (2013.01); C22C 33/04 (2013.01); C22C 38/00 (2013.01); C22C 38/005 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); F25B 21/00 (2013.01); H01F 1/00 (2013.01); H01F 1/0306 (2013.01); H01F 41/02 (2013.01); B22F 9/04 (2013.01); B22F 2301/355 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); C22C 33/0257 (2013.01); C22C 2202/02 (2013.01);
Abstract

There is provided a method for producing a magnetic refrigeration module. The method comprises: a step (1) of preparing a mixture powder A containing an La(Fe,Si)-based alloy powder, an M powder, and optionally an organic binder, the La(Fe,Si)-based alloy powder having a main phase with an NaZn-type crystal structure, and the M powder containing a metal and/or an alloy and having a melting point of 1090° C. or lower; a step (2) of subjecting the mixture powder A to a heat treatment in a reducing atmosphere at a temperature close to the melting point of the M powder to obtain a sintered body B; and a step (3) of subjecting the sintered body B to a hydrogenation treatment in a hydrogen-containing atmosphere.

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