公开(公告)号：US20160052047A1

公开(公告)日：2016-02-25

申请号：US14779590

申请日：2014-02-07

Applicant: SINTOKOGIO, LTD.

Inventor： Kazumasa Uchida ,  Massaomi Mitsutake ,  Hirotsune Watanabe ,  Takumi Maegawa ,  Masashi Morikawa ,  So Nakayama ,  Tomokazu Suda ,  Toshihiko Zenpo

IPC: B22C15/02 ,  B22C5/04

CPC classification number: B22C15/02 ,  B22C5/0413 ,  B22C5/044 ,  B22C5/049

Abstract: A mold-making device may include a stirring device including a stirring tank and at least one stirring blade. The stirring device may further include a packing port that is configured to open and close on a bottom of the stirring tank. The stirring device may stir a particulate aggregate and at least one additive by rotating the at least one stirring blade within the stirring tank to yield an admixture. A forming mold may communicate with the packing port and mold the admixture into a predetermined shape. A packing device may compress a surface of the admixture within the stirring tank and pack the admixture into the forming mold via the packing port.

Abstract translation: 模具制造装置可以包括具有搅拌槽和至少一个搅拌叶片的搅拌装置。 搅拌装置还可以包括构造成在搅拌槽底部打开和关闭的包装端口。 搅拌装置可以通过在搅拌槽内旋转至少一个搅拌叶片来搅拌颗粒聚集体和至少一种添加剂以产生混合物。 成形模具可以与包装端口连通并将混合物模制成预定的形状。 包装装置可以压缩搅拌槽内的混合物的表面，并通过包装口将混合物包装到成型模具中。

公开(公告)号：US10730101B2

公开(公告)日：2020-08-04

申请号：US15770918

申请日：2016-10-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  SINTOKOGIO, LTD.

Inventor： Takumi Maegawa ,  Masashi Morikawa ,  Kenichiro Mori ,  Yusuke Kato

IPC: B22C5/04 ,  B22C9/02 ,  B22C1/12 ,  B22C1/02 ,  B22C19/04 ,  B22C15/23

Abstract: Provided is a method of producing foamed sand (s) for forming a sand mold. The foamed sand (s) includes sand particles (p) and foam (f) adhering to surfaces of the sand particles (p). The foam (f) contains water glass (b), water (w), and a surfactant (c). According to the method, an aqueous surfactant solution (e) in which the surfactant (c) is dissolved is frothed to generate froth (d) from the aqueous surfactant solution (e). Then, the generated froth (d), the water glass (b), and the water (w) are kneaded with the sand constituted by the sand particles (p).

公开(公告)号：US09789533B2

公开(公告)日：2017-10-17

申请号：US14442233

申请日：2013-11-08

Applicant: SINTOKOGIO, LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tomohiro Aoki ,  Yusuke Kato ,  Takehiko Matsumoto ,  Kenichiro Mori ,  Toshihiko Zenpo ,  Tomokazu Suda ,  Masaomi Mitsutake ,  Takumi Maegawa ,  So Nakayama ,  Masashi Morikawa ,  Hirotsune Watanabe

IPC: B22C1/02 ,  B22C9/02 ,  B22D21/04 ,  B22C9/10

CPC classification number: B22C1/02 ,  B22C9/02 ,  B22C9/10 ,  B22D21/04

Abstract: Sand for a casting mold including sand, a binder, and an inorganic compound particle having poor water solubility and generating a gas, which is at least one of water vapor or carbon dioxide gas, by heat from a molten metal.

公开(公告)号：US10946436B2

公开(公告)日：2021-03-16

申请号：US15771301

申请日：2016-10-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  SINTOKOGIO, LTD.

Inventor： Masahide Seko ,  Masashi Morikawa ,  Takumi Maegawa ,  Takashi Nagaya ,  Toshio Kanno ,  Hirotaka Kurita

IPC: B22C15/02 ,  B22C19/04 ,  B22C9/02

Abstract: When pressing kneaded sand in a kneading sand tank into a mold by a pressing member, a pressing force applied to a kneaded sand layer in the kneading sand tank is monitored and a moving position of the pressing member is monitored from when the pressing member starts to move. A pressing start time at which the kneaded sand starts to flow into the mold is identified based on the pressing force applied to the kneaded sand layer in the kneading sand tank, and a pressing starting position of the pressing member at the pressing start time is identified. As a result, the pressing start time and the pressing starting position of the pressing member when the kneaded sand starts to flow into the mold are accurately identified, so the reliability of a filling evaluation of the kneaded sand into the mold is improved.