要制备一个良好的球铁金相试样,一般的常规方法是;试样经砂轮磨平后,在粗磨机上粗磨边磨边加水,然后再到抛光盘上抛光;抛光过程中想要到显微镜上观察以得知进程,则必须用棉花擦干再加酒精清洗擦净,然而常常是不随意愿。改进后的新方法是与原来一样磨制,然在磨制过程中不加水,当试样发热发烫时加少量水再磨,待想去显微镜上观察前加压轻轻地磨,磨干即可,这样可省去用棉球擦及吹风二步所需时间,且磨得的基体也较为干 To prepare a good sample of ductile iron and steel, the general method is generally; after the sample is polished by the grinding wheel, rough grinding on the roughing mill and adding water, and then polishing the polishing disc; To the microscope to observe the process, you must use cotton dry plus alcohol to clean, but often not willing to. The new improved method is the same as the original grinding, grinding process, but not in the water, when the sample is hot and hot add a small amount of water and then grinding, want to go to the microscope to observe the pressure before gently grinding, grinding You can save the time required to wipe and blow with a cotton ball, and the ground matrix is ​​also more dry