US 12,168,816 B2
Wear resistant mining Fe alloy matrix and spinel ceramic compound composite
Aaron James Garland, Columbia Heights, MN (US); Joaquin Aguilar Santillan, Gilbert, AZ (US); Antony Pieter, Chandler, AZ (US); Shayne Allen Berns, Mesa, AZ (US); Mark Dexter Hines, San Tan Valley, AZ (US); Ricardo Rodrigo Leiva Illanes, Rancagua (CL); Benjamin Zimmerman, Tempe, AZ (US); and Daniel William Ruffelle, New Brighton, MN (US)
Assigned to ME GLOBAL INC., Minneapolis, MN (US)
Appl. No. 18/255,599
Filed by ME Global Inc., Minneapolis, MN (US)
PCT Filed Dec. 3, 2021, PCT No. PCT/US2021/061771
§ 371(c)(1), (2) Date Jun. 2, 2023,
PCT Pub. No. WO2022/120148, PCT Pub. Date Jun. 9, 2022.
Claims priority of provisional application 63/121,449, filed on Dec. 4, 2020.
Prior Publication US 2024/0102132 A1, Mar. 28, 2024
Int. Cl. B22D 19/00 (2006.01); B22D 19/02 (2006.01); B22D 19/14 (2006.01); C22C 1/10 (2023.01); C22C 29/00 (2006.01); C22C 29/12 (2006.01); C22C 33/00 (2006.01)
CPC C22C 1/1068 (2013.01) [B22D 19/00 (2013.01); B22D 19/0081 (2013.01); B22D 19/02 (2013.01); B22D 19/14 (2013.01); C22C 1/1047 (2023.01); C22C 29/005 (2013.01); C22C 29/12 (2013.01); C22C 33/00 (2013.01); C22C 33/006 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A casting method of producing a wear resistant mining casting material, said method comprising:
(1) selecting an Fe alloy metal and a spinel ceramic each having a Coefficient of Thermal Expansion (CTE), a wetting contact angle (WCA), or a combination thereof;
wherein the Fe alloy metal has a CTE of from about 10 ppm° C.−1 to about 21 ppm° C.−1 and the spinel ceramic has a CTE of from about 6 ppm° C.−1 to about 11 ppm° C.−1; and
wherein the Fe alloy metal and the spinel ceramic have a WCA of <90°;
(2) manufacturing by an infiltration process a child metal insert casting comprising the compatible Fe alloy metal and the spinel ceramic; and
(3) placing the resultant child insert casting into a mother holding casting for specific design and locations using mechanical fixing chaplets before final Fe alloy metal pouring and solidification of a product.