The characteristics of granite platforms
The main characteristics of granite platforms are stable accuracy and convenient maintenance. This is because:
① Granite undergoes long-term natural aging, and its internal stress completely disappears. Its material is stable and will not deform;
② The granite platform has a dense organizational structure, smooth and wear-resistant surface, and low roughness values;
③ Acid, alkali, corrosion, and magnetic resistance;
④ Low coefficient of linear expansion, less affected by temperature;
⑤ Will not rust due to moisture, easy to use and maintain;
⑥ After the working surface is collided or scratched, only pits will be generated, without protrusions or burrs, which has no impact on measurement accuracy.
Granite platform is a precision benchmark measurement tool made of natural stone materials. It is an ideal reference plane for the inspection of instruments, precision tools, and mechanical components. Especially for high-precision measurement, due to its unique characteristics, cast iron flat plates are dwarfed.