公开(公告)号：US20160121388A1

公开(公告)日：2016-05-05

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 ,  B22C9/10 ,  B22D21/04 ,  B22C9/02

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.

Abstract translation: 砂用于包括砂，粘合剂和水溶性差的无机化合物颗粒的铸模，并且通过来自熔融金属的热量产生作为水蒸汽或二氧化碳气体中的至少一种的气体。

公开(公告)号：US20220194855A1

公开(公告)日：2022-06-23

申请号：US17602330

申请日：2020-03-04

Applicant: SINTOKOGIO, LTD.

Inventor： Kazuyuki NISHIKAWA ,  Masanori TOMIOKA ,  Yusuke KATO ,  Tetsuji MATSUI ,  Tomohiro AOKI

IPC: C04B28/00 ,  C04B22/04 ,  C04B22/02 ,  C04B14/06 ,  C04B14/02 ,  B22C1/10 ,  B22C1/18

Abstract: The invention relates to a composition for forming a casting mold, the composition containing heat-resistant inorganic particles; a waterglass-based binder; a surfactant; a silicon-containing compound; activated carbon powder and grain; and water; and the silicon-containing compound contains at least one of metal silicon and ferrosilicon.

公开(公告)号：US20190105703A1

公开(公告)日：2019-04-11

申请号：US16089497

申请日：2017-02-14

Applicant: SINTOKOGIO, LTD.

Inventor： Tomohiro AOKI ,  Yusuke KATO

IPC: B22C1/18 ,  B22C9/02

Abstract: To provide a binder composition for molding, by which a mold made of aggregate has an excellent resistance to moisture. The binder composition for molding contains a water-soluble binder and at least one kind of lithium salt that is selected from a group of lithium silicate, lithium oxide, lithium hydroxide, lithium carbonate, lithium bromide, lithium chloride, lithium nitrate, and lithium nitrite.

公开(公告)号：US20180326473A1

公开(公告)日：2018-11-15

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: B22C1/12 ,  B22C5/04 ,  B22C9/02 ,  B22C19/04

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：US20160228942A1

公开(公告)日：2016-08-11

申请号：US14909531

申请日：2014-09-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  SINTOKOGIO, LTD.

Inventor： Takumi MAEGAWA ,  Hirotsune WATANABE ,  Masaomi MITSUTAKE ,  Toshio KANNO ,  Hirotaka KURITA ,  Yusuke KATO

IPC: B22C13/08 ,  B22C19/00

CPC classification number: B22C13/08 ,  B22C9/046 ,  B22C19/00

Abstract: A mold forming apparatus includes: a storage tank having in its bottom injection ports capable of being opened and closed, and storing a foamed mixture; a forming mold having runners, corresponding to injection ports, into which the foamed mixture is introduced through storage tank injection ports, and having cavities for forming the introduced foamed mixture into a mold in a predetermined shape; and a pressing device disposed to correspond to the forming mold and pressing the foamed mixture stored in the storage tank to inject the foamed mixture into cavities through runners of the forming mold. A parting surface of the forming mold is formed parallel to a pressing direction of the pressing device, and runners of the forming mold are formed in the parting surface and are tilted with respect to the pressing direction of the pressing device to spread apart from inlets toward outlets guided to the cavities.

Abstract translation: 一种模具成型装置，包括：储罐，其底部喷射口能够打开和关闭，并储存泡沫混合物; 成形模具具有对应于注入口的流道，发泡混合物通过储罐注入口引入其中，并具有用于将引入的发泡混合物形成为预定形状的模具的腔; 以及压力装置，其设置成对应于成形模具并且挤压储存在储罐中的发泡混合物，以通过成型模具的流道将泡沫混合物注入到空腔中。 成型模具的分型面与按压装置的挤压方向平行地形成，成型模具的浇道形成在分型面上，并且相对于加压装置的挤压方向倾斜，从入口向着 出口导向腔。

公开(公告)号：US20240042513A1

公开(公告)日：2024-02-08

申请号：US18282536

申请日：2022-02-09

Applicant: SINTOKOGIO, LTD. ,  TAKEMOTO YUSHI KABUSHIKI KAISHA

Inventor： Yusuke KATO ,  Toshihiko ZENPO ,  Tomohiro AOKI ,  Shumma SATO

IPC: B22C1/02 ,  B22C9/02 ,  B22C1/18

CPC classification number: B22C1/02 ,  B22C9/02 ,  B22C1/188

Abstract: A sand mold-forming additive capable of making a sand mold-forming composition having excellent forming property and a sand mold having excellent moisture resistance is provided. The sand mold-forming additive contains 0.01-2.00 parts by weight of an inorganic alkali metal compound (B) per 100 parts by weight of anionic surfactant (A). The inorganic alkali metal compound (B) is at least one selected from sodium chloride and sodium sulfate. The ionic surfactant (A) is preferably at least one selected from alkyl sulfonic acid metal salts (A1), alkyl sulfuric acid metal salts (A2), and polyoxyalkylene alkyl ether sulfuric acid ester metal salts (A3).

公开(公告)号：US20220371080A1

公开(公告)日：2022-11-24

申请号：US17761478

申请日：2020-06-08

Applicant: TAKEMOTO YUSHI KABUSHIKI KAISHA ,  SINTOKOGIO, LTD.

Inventor： Yusuke KATO ,  Tomohiro AOKI ,  Shumma SATO

IPC: B22C1/02 ,  B22C9/02

Abstract: The additive composition of the present invention is one blended in a sand composition which is subjected to foaming to mold a sand mold, and includes (A) an alkylsulfonate metal salt having an alkyl group with 9 to 22 carbon atoms. The additive composition may further include at least one component selected from a group consisting of (B) an alkylsulfate metal salt, (C) a polyoxyalkylene alkyl ether sulfate metal salt, and (D) an alkylbenzene sulfonate metal salt.