After mounting, the specimen is wet ground to reveal the surface of the metal. The specimen is successively ground with finer and finer abrasive media. Silicon carbide abrasive paper was the first method of grinding and is still used today.
Many Metallography’s, however, prefer to use a diamond grit suspension, which is dosed onto a reusable fabric pad throughout the polishing process. Diamond grit in suspension might start at 9 micrometers and finish at one micrometer.
Generally, polishing with diamond suspension gives finer results than using silicon carbide papers (Sic papers), especially with revealing porosity, which silicon carbide paper sometimes “smear” over.
After grinding the specimen, polishing is performed. Typically, a specimen is polished with a slurry of alumina, silica, or diamond on a nap less cloth to produce a scratch-free mirror finish, free from smear, drag, or pullouts and with minimal deformation remaining from the preparation process.
FEATURES:
- Easy operation and reliable performance,
- It is an indispensable device for the factories, research institutions and college labs to prepare metallographic specimen.
SPECIFICATIONS:
Model | XGrind-319 |
Grinding/polishing disc diameter | Dia 203mm |
Rotation speed | 150rpm and 300rpm |
Input voltage | AC380V/50Hz/3Ph |
Grinding/Polishing disc quantity | 1 |
Grinding/Polishing disc control | Single |
Input power | 370W |
DIMENSIONS AND WEIGHT:
- L x W x H: 740 x 400 x 310 mm
- Weight: 30kg