Granite slotting platform is a high-precision benchmark measurement tool made of natural granite as the substrate, processed by mechanical processing and manual precision grinding. It has strong stability, wear resistance, corrosion resistance, and non magnetization characteristics, and is suitable for high-precision measurement and equipment debugging in fields such as mechanical manufacturing, aerospace, and electronic testing.
Mineral composition: mainly composed of pyroxene and plagioclase, with a small amount of olivine, biotite, and trace magnetite. After years of natural aging treatment, the microstructure is uniform and the internal stress disappears, ensuring long-term use without deformation.
物理性能：
Linear expansion coefficient: as low as 4.6 × 10 ⁻⁶/℃, minimally affected by temperature, suitable for constant or non constant temperature environments.
Compressive strength: 245-254N/mm ², Mohs hardness reaches 6-7 levels, and wear resistance far exceeds that of cast iron platforms.
Corrosion resistance: acid and alkali resistant, rust free, low maintenance cost, and a service life of several decades.
Application scenarios
Mechanical manufacturing, workpiece inspection: Check the flatness and straightness of machine tool guides, bearing seats, and other components, with errors controlled within ± 1 μ m. Equipment debugging: As a benchmark platform for coordinate measuring instruments, ensure the accuracy of measurement data.
Aerospace component calibration: Testing the form and position tolerances of high-temperature alloy components such as aircraft engine blades and turbine disks. Composite material testing: used for flatness testing of carbon fiber composite components to avoid stress concentration.
Electronic inspection, PCB board inspection: As the benchmark platform for character printing machines, it ensures that the printing position accuracy is ≤ 0.05mm.
LCD panel production: Detect the flatness of glass substrates to prevent abnormal arrangement of liquid crystal molecules.
Easy to maintain: not prone to sticking to dust, no need for oil maintenance, simple daily maintenance, only regular cleaning is needed to maintain good working condition.