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    • 6. 发明授权
    • Core for thin-wall hollow casting and thin-wall hollow casting produced by production method employing it
    • 用于通过生产方法制造的薄壁空心铸造和薄壁空心铸造的核心
    • US08376027B2
    • 2013-02-19
    • US12528835
    • 2008-02-27
    • Kazuo NakamuraKeiichi Maekawa
    • Kazuo NakamuraKeiichi Maekawa
    • B22C9/10B22C21/14
    • B22C21/14B22C9/10Y10T428/12292
    • It is a technical common knowledge that a chaplet used in casting of a hollow casting is fusion-bonded with the melt and is incorporated into the casting. However, the adhesion between the chaplet and the casting body is not necessarily satisfactory, thereby incurring the strength reduction of a thin-wall hollow casting. A core for a thin-wall hollow casting according to the present invention is provided with a chaplet mounted thereon. The chaplet has arcuate portion 2 with a gap 5 and a plurality of projections 4 from an outer peripheral of the arcuate portion and is in contact with an inner wall 7 of a mold. The entire arcuate portion of the chaplet is included in a groove 6 formed around an outer peripheral portion of the core body. Only the projections 4 of the chaplet protrude from the core body, when the chaplet is inserted in the groove.
    • 技术上常见的一点是,用于铸造中空铸件的小芯片与熔体熔合并结合到铸件中。 然而,金属丝和铸造体之间的附着力并不一定令人满意,从而导致薄壁中空铸件的强度降低。 根据本发明的用于薄壁空心铸件的芯体设置有安装在其上的花环。 花环具有弓形部分2,其具有间隙5和多个从弓形部分的外圆周形成的突起4并且与模具的内壁7接触。 花环的整个弓形部分包括在形成在芯体的外周部分周围的槽6中。 当花环插入沟槽时,只有花纹突起4从芯体突出。