论文部分内容阅读
由于生产、生活中常要进行切、割、钻、削等各种加工,人们总是在不断寻找更硬的材料来制作加工工具。要说当今世界上最硬的材料,谁都会说是金刚石。金刚石在莫氏硬度表上占首位,其硬度值为10。金刚石不仅硬度高,在室温下还具有良好的导热率,在用它工作时,工作面上昕产生的热能迅速散发,因而金刚石可在多种加工(如切削、研磨、抛光等)上供人选用。另外,金刚石可透过可见光和红外线,能经受离子辐射作用,还能抵御酸和氧化物的化学腐蚀,不过在700℃
As production, life often cut, cut, drill, cut and other processing, people are always looking for harder materials to make processing tools. To say that the hardest material in the world today, anyone would say diamond. Diamonds dominate the Mohs scale, with a hardness of 10. Diamond is not only high hardness, but also has good thermal conductivity at room temperature. When working with it, the thermal energy generated on the work surface is rapidly dissipated, so that diamond can be supplied to people on a variety of processes (cutting, grinding, polishing, etc.) Use. In addition, the diamond through the visible and infrared rays, can withstand ionizing radiation, but also against acid and oxide chemical corrosion, but at 700 ℃