Method for producing a machining segment for the dry machining of concrete materials

    公开(公告)号:US12030121B2

    公开(公告)日:2024-07-09

    申请号:US17415327

    申请日:2019-12-19

    IPC分类号: B22F3/12 B22F5/00 B22F7/08

    摘要: A method for producing a machining segment for a machining tool, where the machining segment is connectable to a basic body of the machining tool by an underside of the machining segment, includes producing a green body by placing first hard material particles in a matrix material in a defined particle pattern, where the first hard material particles are placed in the matrix material with a respective projection with respect to the matrix material. The green body is compacted by pressure between a first press punch, which forms the underside, and a second press punch, which forms an upper side of the machining segment, to form a compact body, where the upper side is opposite from the underside. The compact body is processed by temperature or by infiltration to produce the machining segment.

    PERMANENT MAGNET AND ITS MANUFACTURING METHOD, AND DEVICE

    公开(公告)号:US20240021349A1

    公开(公告)日:2024-01-18

    申请号:US18256189

    申请日:2021-12-08

    申请人: TOKIN CORPORATION

    发明人: Hirokazu MAKUTA

    摘要: A permanent magnet having a high coercivity, a method for manufacturing such a permanent magnet, and a device using such a permanent magnet are provided. The permanent magnet has a composition represented by a below-shown Formula (1). Formula (1): (R1-xZrx)a(T1-yMy)bBc. In Formula (1); R is at least one element selected from rare earth elements; T is at least one element selected from a group consisting of Fe, Co and Ni; M is at least one element selected from a group consisting of Al, Si, Ti, V, Cr, Mn, Cu, Hf, Nb, Mo, Ta and W; and each of a, b and c indicates atomic %, and x and y indicate ratios of Zr and M, respectively; and they are numbers that satisfy below-shown Expressions, 5≤a≤12, b=100−(a+c), 0.1≤c≤20, 0.01≤x≤0.5, and 0.01≤y≤0.5.