论文部分内容阅读
英国一公司生产了一种刻划式硬度测量工具,这是一种经济简便的测量工具。这种工具是在一个钢质的手柄两端,装有标明不同硬度的刻划头,其形状类似于瑞士圆锉(附图)。检验时,用刻划头在试件表面划一下,就可在刻划头与试件之间进行硬度比较。如果刻划头比试件硬,就会在试件表面刻出沟痕,反之,就会滑过表面。通过两个或多个不同硬度的刻划头与试件进行比较,就会判断出该
A British company has produced a scoring hardness measurement tool, which is a simple and economical measurement tool. The tool is on both ends of a steel handle and has a marking head of varying hardness similar in shape to a Swiss file (with photos). Inspection, the use of scratching the first surface of the specimen stroke, you can scratch the head and the specimen hardness comparison. If the scoring head is harder than the test piece, a groove mark will be engraved on the test piece surface, otherwise, it will slip over the surface. By two or more different hardness of the scoring head compared with the specimen, it will determine the