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    Method of sand coremaking
    4.
    发明授权
    Method of sand coremaking 有权
    砂芯制作方法

    公开(公告)号：US06843303B2

    公开(公告)日：2005-01-18

    申请号：US10358133

    申请日：2003-02-04

    申请人： June-Sang Siak ,  Gordon Alwin Tooley ,  Mei Cai ,  Richard Michael Schreck ,  William Thomas Whited

    发明人： June-Sang Siak ,  Gordon Alwin Tooley ,  Mei Cai ,  Richard Michael Schreck ,  William Thomas Whited

    IPC分类号： B22C1/20 ,  B22C9/02 ,  B22C9/10 ,  B22C9/12 ,  B22C9/14 ,  B22C15/10 ,  B22C1/16

    CPC分类号： B22C9/12 ,  B22C15/10

    摘要： A method for making sand particle foundry mold members. Sand particles are coated with an aqueous dispersion of a suitable binder material such as a gelatin gel. The moist gelatin coated particles are gravity fed into a pattern box for the mold member and subjected to multi-axis vibration to pack the sand in the pattern box. The moist sand is then heated with radio frequency energy to promote binder flow to the corners of the particles, and air flow is initiated to transport water from the mass of particles to harden the mass of particles into the mold member.

    摘要翻译： 砂粒铸造模具制造方法。 砂颗粒用合适的粘合剂材料如明胶凝胶的水分散体涂覆。 将潮湿的明胶涂覆的颗粒重力加入用于模具构件的图案盒中，并经受多轴振动以将图案盒中的沙包装。 然后用射频能量加热潮湿的砂，以促进粘合剂流到颗粒的角落，并且启动空气流以从颗粒物质输送水以将颗粒的质量硬化到模具构件中。

    Method of making a mold for metal casting
    5.
    发明授权
    Method of making a mold for metal casting 失效
    铸造金属铸造的方法

    公开(公告)号：US5996682A

    公开(公告)日：1999-12-07

    申请号：US47187

    申请日：1998-03-09

    申请人： Mei Cai ,  June-Sang Siak ,  Richard Michael Schreck ,  Nicholas Edward Sargent

    发明人： Mei Cai ,  June-Sang Siak ,  Richard Michael Schreck ,  Nicholas Edward Sargent

    IPC分类号： B22C1/20 ,  B22C1/22 ,  B22C7/02 ,  B22C9/02 ,  B22C9/04

    CPC分类号： B22C1/2213 ,  B22C1/20 ,  B22C1/2286 ,  B22C7/02

    摘要： A mold for a prototype metal casting or the like may advantageously be made by forming a casting pattern of adhesively bonded aggregate particles using a binder containing a principle constituent that is soluble in supercritical carbon dioxide; forming a rigid shell mold about the pattern of materials that are unaffected by supercritical carbon dioxide; thereafter exposing the pattern and mold combination to supercritical carbon dioxide to remove the pattern binder adhesive and leave unbonded aggregate particles in the mold and removing the aggregate particles from the mold to leave a mold cavity that faithfully defines the pattern shape.

    摘要翻译： 通过使用包含可溶于超临界二氧化碳的主要成分的粘合剂形成粘合的骨料颗粒的铸造图案，可以有利地制造原型金属铸件等的模具; 围绕不受超临界二氧化碳影响的材料图案形成刚性壳模; 然后将图案和模具组合暴露于超临界二氧化碳以除去图案粘合剂粘合剂并且将未结合的聚集体颗粒留在模具中并从模具中除去聚集颗粒以留下忠实地限定图案形状的模腔。