Process method for manufacturing metallographic specimen

Abstract

The invention discloses a process method for manufacturing a metallographic specimen, which comprises the following steps: a) quickly grinding a saw-cut specimen, wherein a spectrum-decommissioning specimen grinding machine changed into an abrasive wheel grinding plate is used; and a specimen grinding fixture which can clamp 8 to 10 specimens once is utilized to quickly grind the specimens and is manually held to quickly grind the specimens on the specimen grinding machine until surface roughness reaches to Ra 1.6 to 0.8 microns so as to meet the requirements on precise grinding; b) performing metallographic specimen grinding; and c) performing metallographic polishing. Compared with the prior art, the process method for manufacturing the metallographic specimen in the invention has the advantages of conveniently and quickly manufacturing the metallographic specimen, and not only ensuring the specimen manufacturing quality and analysis quality, but also saving the cost and improving the efficiency.

Description

technical field [0001] The invention relates to a process method for making a metallographic sample. Background technique [0002] The production of metallographic samples (grinding, polishing, processing) accounts for about 2 / 3 of the total time of metallographic analysis, so how to improve the efficiency of metallographic sample preparation is of great significance. [0003] The traditional metallographic sample preparation adopts manual grinding, which is inefficient. The mechanical sample must be subjected to precision grinding (that is, flat grinding). The metallographic tester spreads metallographic sandpaper on the glass plate and manually 4-5 steps of grinding, the grain size of the sandpaper is getting finer and finer, grinding from (180#-)240#-400#-600#-800# in sequence, the fine grinding sample needs to be increased to 1000# or even 1200#, and every Replace a piece of sandpaper, and clean the sample and table at the same time. After the grinding process is compl...

AI Technical Summary

Problems solved by technology

[0003] The traditional metallographic sample preparation adopts manual grinding, which is inefficient. The mechanical sample must be subjected to precision grinding (that is, flat grinding). The metallographic tester spreads metallographic sandpaper on the glass plate and manually 4-5 steps of grinding, the grain size of the sandpaper is getting finer and finer, grinding from (180#-)240#-400#-600#-800# in sequence, the fine grinding sample needs to be increased to 1000# or even 1200#, and every Replace a piece of sandpaper, and clean the sample and table at the same time