公开(公告)号：US20230271301A1

公开(公告)日：2023-08-31

申请号：US17924475

申请日：2021-05-14

Applicant: SINTOKOGIO, LTD.

Inventor： Shinji KANDA ,  Hiroki MIZUNO ,  Hayato TANIGUCHI

IPC: B24C11/00 ,  B24C7/00

CPC classification number: B24C11/00 ,  B24C7/0046

Abstract: A blasting abrasive includes a particle of hot melt resin and abrasive grains to be firmly fixed to the particle, a blasting method further includes preparing a blasting abrasive including particles of hot melt resin and abrasive grains to be firmly fixed to the particles, heating gas, and injecting both the blasting abrasive and the heated gas.

公开(公告)号：US20210069864A1

公开(公告)日：2021-03-11

申请号：US16981460

申请日：2019-03-08

Applicant: SINTOKOGIO, LTD.

Inventor： Yuto KATO ,  Masayuki ISHIKAWA ,  Naoya TANUMA ,  Hayato TANIGUCHI

IPC: B24C11/00 ,  B22F1/00 ,  C22C38/02 ,  C22C38/04

Abstract: The present disclosure relates to a shot used for blast processing, the shot being made of an iron-based alloy containing C: 0.20 to 0.50% by mass, Si: 0.50 to 1.10% by mass, and Mn: 0.50 to 1.15% by mass as additive elements, in which a mass ratio of C to Si is 0.30 to 0.75, a mass ratio of C to Mn is 0.30 to 0.75, and a mass ratio of Si to Mn is 0.70 to 1.60, and a Vickers hardness of the shot is HV 400 to 800.

公开(公告)号：US20190032176A1

公开(公告)日：2019-01-31

申请号：US16071633

申请日：2016-10-17

Applicant: SINTOKOGIO, LTD.

Inventor： Naoya TANUMA ,  Hayato TANIGUCHI

IPC: C22C38/18 ,  B24C1/10 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/00 ,  C21D6/00 ,  C09K3/14

Abstract: A cast steel shot media for performing a blasting treatment, including, at a weight ratio, 0.8% or more and 1.2% or less of C, 0.35% or more and 1.2% or less of Mn, and 0.4% or more and 1.5% or less of Si, in which a remainder has a hyper-eutectoid composition including Fe and inevitable impurities, and the cast steel shot media has a structure having a fine pearlite structure as a main constituent.

公开(公告)号：US20240051087A1

公开(公告)日：2024-02-15

申请号：US18216012

申请日：2023-06-29

Applicant: SINTOKOGIO, LTD.

Inventor： Hayato TANIGUCHI ,  Hiroki MIZUNO

IPC: B24C1/00 ,  B24C1/10 ,  B24C3/08

CPC classification number: B24C1/006 ,  B24C1/10 ,  B24C3/08

Abstract: A smoothing method includes: a step of attaching a workpiece to a rotating shaft of a rotating mechanism; and a step of performing direct pressure blasting on the workpiece while rotating the workpiece about the rotating shaft as an axial center. In the blasting, injection media are injected in a direction orthogonal to the rotating shaft, the injection media include a core material made of an elastic body and abrasive grains provided on a surface of the core material, and hardness of the core material is lower than hardness of the abrasive grains.

公开(公告)号：US20220009054A1

公开(公告)日：2022-01-13

申请号：US17370368

申请日：2021-07-08

Applicant: SINTOKOGIO, LTD.

Inventor： Fumiaki KUMENO ,  Hayato TANIGUCHI

IPC: B24C1/00 ,  B23K26/352

Abstract: A surface treatment method includes a step of irradiating a workpiece with a pulsed laser beam through a transparent liquid and a step of causing particles to collide with a heat-affected layer developed on a surface layer portion of the workpiece in the step of irradiating. The particles each has a core made of an elastic body and abrasive grains provided on a surface of the core.