公开(公告)号：US11511393B2

公开(公告)日：2022-11-29

申请号：US16963345

申请日：2019-01-18

Applicant: SINTOKOGIO, LTD.

Inventor： Yuto Kato ,  Hayato Taniguchi

IPC: B24C1/10 ,  B24C11/00

Abstract: A particle diameter distribution of shot media before forming an operating mix is bimodal and substantially continuous, and out of a first particle group corresponding to a first peak and a second particle group corresponding to a second peak, one is an aggregate of particles in a shape having an angular part while the other is an aggregate of particles in a shape configured with a convex curved surface.

公开(公告)号：US10731238B2

公开(公告)日：2020-08-04

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 ,  B24C11/00 ,  B24C1/08

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：US11478897B2

公开(公告)日：2022-10-25

申请号：US16963336

申请日：2019-01-18

Applicant: SINTOKOGIO, LTD.

Inventor： Hayato Taniguchi ,  Yuto Kato

IPC: B24C11/00 ,  B24C1/10

Abstract: A blasting processing method using shot media. A particle diameter distribution of the shot media before forming an operating mix is bimodal and substantially continuous, and both a first particle group corresponding to a first peak and a second particle group corresponding to a second peak are aggregates of particles in a shape having an angular part.