High-Precision Marble Platform
The high-precision marble platform is made from high-quality granite, artificially aged to eliminate internal stress. Its finely lapped working surface provides a high flatness accuracy grade. The product offers high hardness, resistance to magnetization, wear and corrosion, and low deformation, and is commonly used as a reference surface for precision metrology. It is widely used in coordinate measuring equipment, machine tool inspection, fixture verification and precision component measurement. Natural granite undergoes multiple aging processes and constant-temperature resting periods to release internal stress before ultraprecision lapping. Its uniform density and good rigidity produce much less temperature-induced deformation than metal materials. It also has inherently nonmagnetic, oxidation-resistant and wear-resistant properties, resisting warping during long-term use and maintaining working-surface flatness. Standard threaded holes, locating slots and reference holes can be machined as required, allowing fixtures and inspection sensors to be mounted directly for inspection, assembly and calibration. The platform requires neither an air supply nor electricity, is easy to maintain and places few demands on its operating environment. It is an important metrology base component in precision manufacturing, used for metrology room verification, coordinate measuring machine bases, optical equipment positioning, geometric tolerance inspection of mechanical parts and fixture positioning for high-end equipment, providing a reliable reference support for precision measurement.
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