学生构思3D打印新方法或能将废物再利用（在线收听）

学生构思3D打印新方法或能将废物再利用

A popular 3D printing method called selective laser sintering,or SLS,uses metal or plastic powder,typically nylon,for creating various objects,but leaves about 44 percent of it as waste.

现在3D打印的一种流行方法被称为SLS，即选择性激光烧结,它使用主要尼龙为材质的金属或塑料粉末,创建各式各样的物体,但会造成约44%的废物浪费。

Undergraduate students at London’s Royal College of Art,Fabio Hendry and Seongil Choi,developed a simple method for hardening the nylon powder into solid objects.

而伦敦皇家艺术学院的本科生法比奥·亨得利及塞昂格尔·科里发明了一种简单的方法可以硬化尼龙粉变成固体物。

A nickel-chromium wire is bent into the desired shape,placed in a container and covered in a mix of nylon powder and fine-grained sand.

将镍铬线弯曲成所需形状,放在一个容器然后加入尼龙粉和细粒度的砂。

When connected to an electrical source such as a car battery,the mixture hardens around the wire.

而后同汽车电池的等电源连接、导线周围的混合物变硬。

“For instance,we create the structure of the wire,fill in the mixture material,turn on the heat for 20 minutes,and after you have a fully usable piece of furniture that is very hard to do any other way."

“比如我们创建好物体的线形结构,填入混合材料,打开加热20分钟,然后你就有一件任何其他方式都很难能够做到的完全可用家具。”

The thickness of the hardened structure depends on the time the wire is connected to the power source-usually up to 30 minutes.

这种硬结构的厚度取决于线连接到功率电源的时间，通常是30分钟。

The two students exhibited 12 artistic stools in a variety of shapes.

这两名学生展示各种各样形状的12件凳子艺术品。

“It requires no mold. It doesn't use heavy equipment. It's very easy and simple to make,and in that sense it's very sustainable. It doesn't require a lot of energy to produce a shape."

“这种方法不需要模具。无需使用重型设备。它非常方便而且操作简单,从这个意义上说可持续很久。它产生形状不需要大量的能量。”

The stools were made as a project whose goal was to explore the usability of various waste products.

这些艺术品凳子是一个探索各种废物再利用的项目。

Hendry and Choi say they hope their method,used on an industrial scale,could substantially reduce the amount of leftover nylon powder.

亨得利和科里表示他们希望自己的方法能够走进工厂,大大减少剩尼龙粉末。