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    • 2. 发明申请
    • Polymer Powder Comprising Polyamide Use Thereof In A Moulding Method And Moulded Body Make From Said Polymer Powder
    • 聚合物粉末包括聚酰胺在其中使用的成型方法和成型体由所述聚合物粉末制成
    • US20080116616A1
    • 2008-05-22
    • US11587795
    • 2005-03-03
    • Sylvia MonsheimerFranz-Erich BaumannMaik GrebeJoerg Lohmar
    • Sylvia MonsheimerFranz-Erich BaumannMaik GrebeJoerg Lohmar
    • B29C67/24
    • C08L77/06B29C64/153B33Y70/00
    • The present invention relates to a polymer powder which comprises polyamide, and to the use of this powder for shaping processes, and also to moldings produced from this polymer powder.The shaping processes are layer-by-layer processes which use powders, where regions of the respective layer are selectively melted via introduction of electromagnetic energy. The selectivity may—with no intention of restricting the invention thereto—be achieved via masks, application of inhibitors, of absorbers, or of susceptors, or via focusing of the energy introduced. After cooling, the regions then solidified can be removed in the form of moldings from the powder bed.Compared with moldings composed of conventional powders, the moldings constructed using the inventive powder by one of the inventive processes exhibit marked advantages in terms of component properties, particularly surface finish.Another advantage is that the improved surface finish has no adverse effect on other properties; for example, processability remains good, and mechanical properties are likewise not poorer than those of components composed of conventional polymer powder.
    • 本发明涉及一种聚合物粉末,其包含聚酰胺,以及该粉末用于成形过程的用途,以及由该聚合物粉末制备的模制品。 成型过程是使用粉末的逐层工艺,其中各层的区域通过引入电磁能被选择性地熔化。 选择性可以 - 不意图限制本发明 - 通过掩模,抑制剂,吸收剂或感受器的应用,或通过所引入的能量的聚焦来实现。 冷却后,固化的区域可以从粉末床以模制品的形式除去。 与由常规粉末组成的模制品相比,使用本发明方法的本发明粉末构造的模制品在组分性能,特别是表面光洁度方面表现出显着的优点。 另一个优点是改进的表面光洁度对其他性能没有不利影响; 例如,加工性保持良好,并且机械性能同样不比常规聚合物粉末组分的机械性能差。