US 12,115,579 B2
Metal solid production method
Kazuhiko Nishioka, Kawasaki (JP); and Koji Kageyama, Kawasaki (JP)
Assigned to K.K. SUN METALON, Kawasaki (JP)
Appl. No. 18/550,677
Filed by K.K. SUN METALON, Kawasaki (JP)
PCT Filed Mar. 15, 2022, PCT No. PCT/JP2022/011575
§ 371(c)(1), (2) Date Sep. 14, 2023,
PCT Pub. No. WO2022/196681, PCT Pub. Date Sep. 22, 2022.
Claims priority of application No. 2021-041553 (JP), filed on Mar. 15, 2021.
Prior Publication US 2024/0165700 A1, May 23, 2024
Int. Cl. B22F 3/16 (2006.01); B22F 1/12 (2022.01); B22F 3/00 (2021.01); B22F 3/14 (2006.01); B22F 3/24 (2006.01); B22F 5/00 (2006.01); B22F 7/02 (2006.01); B22F 9/20 (2006.01); B22F 10/10 (2021.01); B22F 10/20 (2021.01); B22F 10/22 (2021.01); B22F 10/25 (2021.01); B22F 10/66 (2021.01); B22F 12/41 (2021.01); B22F 12/50 (2021.01); B22F 12/60 (2021.01); B22F 12/70 (2021.01); B23K 1/005 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 70/10 (2020.01); B22F 3/105 (2006.01)
CPC B22F 10/22 (2021.01) [B22F 1/12 (2022.01); B22F 3/004 (2013.01); B22F 3/14 (2013.01); B22F 3/16 (2013.01); B22F 3/24 (2013.01); B22F 5/00 (2013.01); B22F 7/02 (2013.01); B22F 9/20 (2013.01); B22F 10/10 (2021.01); B22F 10/20 (2021.01); B22F 10/25 (2021.01); B22F 10/66 (2021.01); B22F 12/41 (2021.01); B22F 12/50 (2021.01); B22F 12/60 (2021.01); B22F 12/70 (2021.01); B23K 1/005 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/10 (2020.01); B22F 2003/1054 (2013.01); B22F 2201/01 (2013.01); B22F 2201/10 (2013.01); B22F 2201/50 (2013.01); B22F 2202/11 (2013.01); B22F 2301/052 (2013.01); B22F 2301/35 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); C04B 2237/34 (2013.01); C04B 2237/363 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for producing a metal solid, the method comprising:
covering at least a portion of a periphery of a metal powder with a high-melting-point material having a melting point higher than the melting point of the metal powder; and
irradiating the metal powder, at least a portion of the periphery of which is covered with the high-melting-point material, with microwaves to heat the metal powder, thereby sintering or melt-solidifying the metal powder,
wherein in the portion of the metal powder covered with the high-melting-point material, the metal powder and the high-melting-point material are in contact with each other, and the high-melting-point material includes a mixture of:
an insulation material that has a lower degree of absorption of the microwaves than the metal powder, and
an absorbent material that absorbs the microwaves in a temperature zone at least a portion of which is lower than a temperature zone in which the metal powder absorbs the microwaves.