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公开(公告)号：US5837373A
公开(公告)日：1998-11-17
申请号：US666178
申请日：1996-06-19
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.
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公开(公告)号：USRE36001E
公开(公告)日：1998-12-22
申请号：US916729
申请日：1997-08-18
CPC分类号： B22C1/2293 , Y10T428/2993 , Y10T428/2998
摘要： A foundry mold member made from a plurality of sand practice bound together with a binder which is concentrated at the contact points between contiguous 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 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： 由多个砂练习制成的铸造模具构件与粘合剂结合在一起，该粘合剂在相邻颗粒之间的接触点处被浓缩，并且基本上由Bloom等级低于约175 Bloom克的明胶组成。 首先用明胶的溶胶涂覆砂粒，冷却至环境温度，并调节到在图案模具中加热涂覆的颗粒时使明胶迁移到颗粒间接触点所需的规定含水量。
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公开(公告)号：US5749409A
公开(公告)日：1998-05-12
申请号：US573646
申请日：1995-12-18
CPC分类号： B22C3/00 , B22C1/2293
摘要： Refractory coated gelatin-bonded foundry sand core made by waterproofing the surface of the core and immersing the waterproofed core in an aqueous refractory suspension to deposit the refractory.
摘要翻译： 耐火涂层明胶结合的铸造砂芯通过防水芯表面并将防水芯浸入含水难熔悬浮液中沉积耐火材料制成。
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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
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。
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