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    • 1. 发明申请
    • Powder injection molding of glass and glass-ceramics
    • 玻璃和玻璃陶瓷的粉末注射成型
    • US20070154666A1
    • 2007-07-05
    • US11394692
    • 2006-03-31
    • Everett CoonanJohn CostelloSean GarnerBeth MonahanMark Quesada
    • Everett CoonanJohn CostelloSean GarnerBeth MonahanMark Quesada
    • B28B11/00C04B33/36B28B3/00
    • C03B19/06Y10T428/131
    • A method for producing glass or glass ceramic articles by powder injection molding of glass powder includes mixing together, in a continuous mixing process, ingredients to form a mixture comprising a glass powder and a binder, where the ingredients include a glass powder in a relative amount sufficient to equal at least 50% by volume of the resulting mixture and a binder comprising a thermoplastic polymer, desirably a thermoplastic elastomer, and a wax; forming the mixture into a formed structure; and de-binding and sintering the formed structure. The method desirably involves mixing via a high intensity mixing process, desirably by mixing in a twin-screw extruder. The forming process may include pelletizing the mixture and injection molding the pelletized mixture to form the formed structure. The ingredients of the mixture desirably comprise a glass powder in a relative amount sufficient to equal at least 70% by volume of the resulting mixture. The glass powder desirably includes at least some glass particles having irregular shapes.
    • 通过玻璃粉末的注射成型制造玻璃或玻璃陶瓷制品的方法包括在连续混合过程中将成分混合在一起形成包含玻璃粉末和粘合剂的混合物,其中成分包括相对量的玻璃粉末 足以等于所得混合物的至少50体积%的粘合剂和包含热塑性聚合物,期望地为热塑性弹性体和蜡的粘合剂; 将混合物形成成形结构; 并对形成的结构进行去结合和烧结。 该方法期望地包括通过高强度混合方法进行混合,期望地通过在双螺杆挤出机中混合。 成型过程可以包括将混合物造粒并注射成型造粒的混合物以形成形成的结构。 混合物的成分理想地包括相对量足以等于所得混合物的至少70体积%的玻璃粉末。 玻璃粉末理想地包括至少一些具有不规则形状的玻璃颗粒。