德国重演引入了液体添加剂制造的材料

德国Reprap是FFF 3D打印机的领先制造商和聚氨酯和环氧树脂树脂制造商Ebalta Kunststoff GmbH，它呈现一种新的聚氨酯（PU）材料，可用于增材制造中。材料的可自定义属性为满足一系列要求提供了灵活性。

印刷后，聚氨酯材料具有化学交联的各向同性机械性能。该材料的独特特征是可以在其液态状态下打印3D，从而消除了通常通过3D打印沉积喷嘴发生的软化或熔化过程。

The new PU material was introduced in June 2017 at PSE Europe 2017 in Munich, at the booth of ebalta Kunststoff GmbH. German RepRap pioneered liquid additive manufacturing (LAM) and presented the technology in November of 2016 at the Formnext trade show in Frankfurt.

The PU material was developed to create a range of properties, from soft to hard. The manufacturing process produces a comparable structure to that yielded from the FFF process. However, the PU material enables the printing of highly complex parts, which may be difficult or impossible with existing injection molding technology. Most importantly, the mechanical properties are virtually identical to those of an injection-molded part. This new ability to process polyurethane-based materials opens up whole new areas of application, such as prototype construction or functional models for consumer goods. The special properties of PU can meet a variety of requirements (e.g., specific strength and flame retardant materials). Processing at room temperature is energy efficient, and the material exhibits low material shrinkage between 1 and 2%. This makes challenges, such as thermal warping or detachment from the print bed, things of the past.

Applications for PU materials are shoe soles, soccer balls, instrument panels, all types of seals, hoses, and sealants. Thanks to their excellent mechanical properties, polyurethanes are suitable for special applications, such as those requiring high resistance to wear. This makes them suitable for applications in virtually all industries, especially automotive, aeronautical, and construction.

德国重演GmbH
www.germanreprap.com