公开(公告)号：US20210190678A1

公开(公告)日：2021-06-24

申请号：US16755838

申请日：2018-10-25

Applicant: Sintokogio, Ltd.

Inventor： Toshiya Tsuji ,  Shoichi Yamamoto ,  Yuji Kobayashi ,  Toshio Sugibayashi ,  Shun Yoshida

IPC: G01N21/27 ,  G01N21/88 ,  G01N21/95 ,  G01J3/02

Abstract: One point on a surface of a qualified article is measured in advance by a color sensor without contact, and a qualification reference value is set based on an output value thereof. Thereafter, one point on a surface of an inspection target of same design specifications as the qualified article is measured by the color sensor without contact, and an output value thereof is compared with the qualification reference value, and qualification/failure is judged. Because qualification/failure can be carried out without contacting an inspection target in this way, application to a high-speed production line is possible.

公开(公告)号：US09821434B2

公开(公告)日：2017-11-21

申请号：US15270642

申请日：2016-09-20

Applicant: Sintokogio, Ltd.

Inventor： Yuji Kobayashi ,  Akinori Matsui

IPC: B24C1/10 ,  B24C3/32 ,  C21D7/06 ,  B22D17/22

CPC classification number: B24C1/10 ,  B22D17/22 ,  B24C3/325 ,  C21D7/06 ,  G01N2203/008 ,  Y10T29/479

Abstract: In a trial peening step, a shot peening process is applied to a back face 40B of a mold 40 in which an opening of a closed-end water cooling hole 42 is formed. Next, in an evaluation step, compressive residual stress and surface roughness of a region shot-peened in the trial peening step are measured and an extent of shot peening treatment in the trial peening step is evaluated based on measurement results. Next, in a peening step, a surface of the water cooling hole 42 in the mold 40 is shot-peened under peening conditions set based on peening conditions for the trial peening step and on evaluation results produced in the evaluation step.

公开(公告)号：US20150151404A1

公开(公告)日：2015-06-04

申请号：US14389841

申请日：2012-11-21

Applicant: Sintokogio, Ltd.

Inventor： Yuji Kobayashi ,  Akinori Matsui

IPC: B24C1/10

CPC classification number: B24C1/10 ,  B22D17/2218 ,  C21D7/06 ,  Y10T29/479

Abstract: First, it is determined in a determination step by a determination unit whether there is a nitrided layer on a surface of a water-cooled hole of a mold, by using an eddy current sensor. Next, in a shot step, when it is determined in the determination step that there is no nitrided layer, the surface of the water-cooled hole of the mold is shot-peened under a shot condition set according to a base material of the mold, and when it is determined in the determination step that there is the nitrided layer, the surface of the water-cooled hole of the mold is shot-peened under a shot condition which maintains a state where there is the nitrided layer.

Abstract translation: 首先，在确定单元的确定步骤中，通过使用涡流传感器，确定在模具的水冷孔的表面上是否存在氮化层。 接下来，在射出工序中，当在确定步骤中确定没有氮化层时，在根据模具的基材设置的喷射条件下将模具的水冷却孔的表面喷丸硬化 ，并且当在确定步骤中确定存在氮化层时，在保持具有氮化层的状态的喷射条件下对模具的水冷却孔的表面进行喷丸硬化。