Apparatus and method for investment casting core manufacture

    公开(公告)号:US10695826B2

    公开(公告)日:2020-06-30

    申请号:US15651594

    申请日:2017-07-17

    Abstract: A method of producing an investment casting ceramic core is provided that includes: providing a core body consisting of a leachable material; surrounding the core body with a mold composition within a vessel, which mold composition is configured to solidify; leaching the core body from the mold composition subsequent to the mold composition solidifying, thereby leaving an internal cavity within the solidified mold composition; depositing a ceramic composition within the internal cavity of the solidified mold composition; sintering the ceramic composition to a solid ceramic core; and removing the solid ceramic core from the mold composition.

    Variable Diameter Investment Casting Mold For Casting of Reticulated Metal Foams
    6.
    发明申请
    Variable Diameter Investment Casting Mold For Casting of Reticulated Metal Foams 有权
    可变直径投射铸造模具用于铸造网状金属泡沫

    公开(公告)号:US20170001238A1

    公开(公告)日:2017-01-05

    申请号:US14755025

    申请日:2015-06-30

    CPC classification number: B22C9/22 B22C9/04 B22C9/046 B22D25/005

    Abstract: A method to manufacture reticulated metal foam via a dual investment solid mold, includes pre-investing a precursor with a diluted pre-investment ceramic plaster to encapsulate the precursor; and investing the encapsulated precursor with a ceramic plaster within an mold of a varied cross-section. A varied cross-section mold includes a mold thickness adjacent to an outer periphery of a pattern at a top of the varied cross-section mold is between 200-500% a thickness between the outer periphery of the pattern at a base of the varied cross-section mold. A varied cross-section mold includes a trapezoidal prism shape with a pour cone in a top, the top larger than the base.

    Abstract translation: 通过双投资固体模具制造网状金属泡沫的方法包括用稀释的预投资陶瓷石膏预投入前体以包封前体; 并将具有陶瓷石膏的封装前体投资在各种横截面的模具内。 不同的横截面模具包括在不同横截面模具的顶部处与图案的外周相邻的模具厚度在不同横截面的基部处的图案的外周之间的厚度之间的200-500% 切割模具。 不同的横截面模具包括梯形棱柱形状,顶部具有倾倒锥体,顶部大于基部。

    APPARATUS AND METHOD FOR INVESTMENT CASTING CORE MANUFACTURE

    公开(公告)号:US20190015893A1

    公开(公告)日:2019-01-17

    申请号:US15651594

    申请日:2017-07-17

    Abstract: A method of producing an investment casting ceramic core is provided that includes: providing a core body consisting of a leachable material; surrounding the core body with a mold composition within a vessel, which mold composition is configured to solidify; leaching the core body from the mold composition subsequent to the mold composition solidifying, thereby leaving an internal cavity within the solidified mold composition; depositing a ceramic composition within the internal cavity of the solidified mold composition; sintering the ceramic composition to a solid ceramic core; and removing the solid ceramic core from the mold composition.

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