在生产细丝的时候,怎么会知道拉丝模出了毛病呢?英国国家物理实验室的回答是用激光来发现。这些拉丝模通常由钻石作成。其孔径可小到10微米,由它们所产生的细丝以每小时高达90哩(144哩)的速度离开拉丝模。如果拉丝模有毛病,在被检测出来以前,就会 How do you know when drawing filaments? The answer from the National Physics Laboratory is found with a laser. These wire drawing dies are usually made of diamonds. Their apertures can be as small as 10 microns and the filaments they produce leave the drawing die at speeds of up to 90 miles (144 miles) per hour. If the drawing dies, it will be detected before it is detected