新型塑料翻译

Environmentally Friendly Plastics 通过振动技术制造环保塑料 Telephones, TV parts, the computer mouse at your fingertips, parts inside a PC, and other everyday products are made with plastics using a process called injection molding. A Lehigh University professor has developed a simple, software-directed device that vibrates molten plastics in an injection mold to produce stronger plastics that are environmentally beneficial.

Injection molding involves injecting molten plastic into a mold. Only a small amount of recycled plastic is used in this process, says John Coulter, Lehigh associate professor of mechanical engineering and mechanics, because recycled plastic is poor in quality and would reduce the product’s strength. Coulter’s vibration-assisted process enables manufacturers to recycle once useless and environmentally unfriendly plastic, and still produce stronger products than those produced using new plastic that is not vibrated.

Researchers have tried to vibrate heated plastic, but most methods require costly machine and/or mold changes. Coulter and his Lehigh colleagues have found that by vibrating the feed screw device used to deliver the liquefied plastic material into the mold, they can achieve the same results without the need to vibrate the mold. making simple alternations to the screw’s hydraulic system, Coulter designed software that directs the device to vibrate at low frequencies once the plastic has been fed into the mold.

用塑料制成的电话、电视机部件、在你指尖下的鼠标、电脑的内部零件和其他日常产品的这一过程称作为注压成型。一个里海大学教授开发了一种简单，软件控制的设备，通过注塑模具振动熔融塑料来制造有益环境的新型塑料。

注压成型是把熔融的塑料注射入模具致以成型。正如里海机械工程与力学的副教授约翰。库特尔所说，只有少量的再生塑料应用在这个过程，因为再生塑料的质量差从而降低了产品的优势。库特尔的辅助振动过程可以使制造商回收那些无用和对环境有影响的塑料，并且能生产出比没有使用振动技术生产的一次性塑料更强的环保塑料。

研究人员一直试图振动加热塑料，但大多数方法需要昂贵的机器或换模。库特尔和他海里的同事们发现通过振动进给螺杆设备把液化塑料材料放入模具中，并不需要振动模具，却可以使它们可以达到相同的结果。制作简单的螺丝液压循环系统，一旦塑料进入模具，库特尔设计的软件可以将设备的振动频率降低。