公开(公告)号：US5582231A

公开(公告)日：1996-12-10

申请号：US431923

申请日：1995-04-28

申请人： June-Sang Siak ,  William T. Whited ,  Mark A. Datte ,  Richard M. Schreck

发明人： June-Sang Siak ,  William T. Whited ,  Mark A. Datte ,  Richard M. Schreck

IPC分类号： B22C1/00 ,  B22C1/10 ,  B22C1/22 ,  B22C1/26 ,  B22C5/04 ,  B22C9/10 ,  B22C9/12 ,  B22C1/16

CPC分类号： B22C1/2293 ,  Y10T428/2993 ,  Y10T428/2998

摘要： A foundry mold member made from a plurality of sand particles bound together with a binder which is concentrated at the contact points between contiguous sand particles and consists essentially of gelatins having a Bloom rating less than about 175 Bloom grams. The sand particles are first coated with a sol of the gelatin, cooled to ambient temperature and conditioned to a prescribed water content necessary to effect migration of the gelatin to the interparticle contact points upon heating of the coated particles in a pattern mold.

摘要翻译： 由多个与颗粒结合在一起的粘结剂制成的铸造模具构件，该粘结剂被浓缩在相邻的砂粒之间的接触点处，并且基本上由Bloom等级低于约175 Bloom克的明胶组成。 砂颗粒首先用明胶溶胶涂覆，冷却至环境温度，并调节至在图案模具中加热涂覆颗粒时使明胶迁移到颗粒间接触点所需的规定水含量。

公开(公告)号：US4641703A

公开(公告)日：1987-02-10

申请号：US802423

申请日：1985-11-27

申请人： Karl D. Voss ,  Mark A. Datte ,  Gary F. Ruff

发明人： Karl D. Voss ,  Mark A. Datte ,  Gary F. Ruff

IPC分类号： B22C9/10 ,  B22D18/06

CPC分类号： B22D18/06

摘要： Apparatus for the countergravity, shell-mold casting process comprising a gas-permeable shell mold sealed in the mouth of a vacuum chamber and a hollow, expendable, gas-permeable, thermally degradable, core disposed with the molding cavity for engulfment and retention by the metal being cast. The core defines a central evacuation cavity and an unobstructed vent for exhausting the evacuation cavity into the vacuum chamber such that the pressure in the evacuation cavity is substantially equal to that in the vacuum chamber during casting.

摘要翻译： 用于反重力的壳模铸造方法的装置，其包括密封在真空室的口中的气体可渗透的壳模，以及空心的，可消耗的，透气的，可热降解的芯，其设置有模制腔，用于通过 金属被铸造。 芯部限定了一个中央抽空腔和一个无阻碍的通风口，用于将排空腔排放到真空室中，使得排气腔中的压力基本上等于铸造过程中真空室中的压力。