公开(公告)号：US09314837B2

公开(公告)日：2016-04-19

申请号：US14360577

申请日：2012-11-27

申请人： Masaomi Mitsutake ,  Hirotsune Watanabe ,  Tomokazu Suda ,  Yusuke Kato ,  Toshihiko Zenpo

发明人： Masaomi Mitsutake ,  Hirotsune Watanabe ,  Tomokazu Suda ,  Yusuke Kato ,  Toshihiko Zenpo

IPC分类号： B22C1/00 ,  B22C1/18 ,  B22C9/02 ,  B22C7/06

CPC分类号： B22C1/00 ,  B22C1/188 ,  B22C7/06 ,  B22C9/02

摘要： By mixing, stirring and kneading, with water glass (11) as a binder, sand (7), a surfactant (9), and water (10), foamed sand (S) is generated. The foamed sand (S) is packed in a cavity of a metallic mold and solidified to form a sand mold. By using the sand mold, aluminum is cast. By using water glass that is an inorganic binder, during casting, harmful gas and odor are not generated. Further, when a molar ratio n of water glass (Na2O nSiO2 mH2O) is adjusted in the range of 0.65 to 1.30, a quantity of water (H2O) generated by heating water glass with a high temperature melt during casting can be suppressed. Thereby, hydrogen gas (H2) according to a reaction between water (H2O) and aluminum (Al) can be suppressed from being generated and casting quality can be improved.

摘要翻译： 通过混合，搅拌和捏合作为粘合剂的水玻璃（11），产生砂（7），表面活性剂（9）和水（10），发泡砂（S）。 将发泡砂（S）包装在金属模具的空腔中并固化以形成砂模。 通过使用砂模，铸铝。 通过使用无机粘合剂的水玻璃，在铸造时不会产生有害气体和气味。 此外，当水玻璃（Na 2 O nSiO 2·mH 2 O）的摩尔比n调整在0.65〜1.30的范围内时，可以抑制通过在浇铸时用高温熔体加热水玻璃而产生的水（H 2 O）的量。 由此，能够抑制水（H 2 O）与铝（Al）的反应的氢气（H 2）的产生，能够提高铸造品质。