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    • 7. 发明公开
    • VARIABLE DIAMETER INVESTMENT CASTING MOLD OF RETICULATED METAL FOAMS
    • FEINGUSSFORM MIT可变式灭火器FÜRVERNETZTEMETALLSCHÄUME
    • EP3112048A1
    • 2017-01-04
    • EP16177372.6
    • 2016-06-30
    • United Technologies Corporation
    • BRENEMAN, Ryan C.BULLIED, Steven J.BLONDIN, John F.NORAAS, Ryan B.
    • B22C9/04B22D25/00
    • B22C9/22B22C9/04B22C9/046B22D25/005
    • A method (100) to manufacture reticulated metal foam via a dual investment solid mold, includes pre-investing a precursor (20, 30) with a diluted pre-investment ceramic plaster to encapsulate the precursor (20, 30); and investing the encapsulated precursor (20, 30) with a ceramic plaster within a mold (200) of a varied cross-section. A varied cross-section mold (200) includes a mold thickness (212) adjacent to an outer periphery (214) of a pattern (216) at a top (208) of the varied cross-section mold (200) which is between 200-500% of a thickness (220) between the outer periphery (214) of the pattern (216) at a base (222) of the varied cross-section mold (200). A varied cross-section mold (200) includes a trapezoidal prism shape with a pour cone (210) in a top (208), the top (208) larger than the base (222).
    • 通过双投资固体模具制造网状金属泡沫的方法(100)包括用稀释的预投资陶瓷石膏预先投入前体(20,30)以包封前体(20,30); 以及将具有陶瓷石膏的所述封装的前体(20,30)投入到具有不同横截面的模具(200)内。 不同的横截面模具(200)包括在变截面模具(200)的顶部(208)处与图案(216)的外周(214)相邻的模具厚度(212),其在200 在所述多个横截面模具(200)的基部(222)处的所述图案(216)的外周(214)之间的厚度(220)的-500%。 不同的横截面模具(200)包括在顶部(208)中具有倾倒锥体(210)的梯形棱镜形状,顶部(208)大于基部(222)。