Six major advantages of using granite for high-precision machine bases
Analysis of the Six Core Advantages of Using Granite for High-Precision Machine BasesI. Extremely Low Thermal Expansion Coefficient, Zero Precision Drift in Constant Temperature Conditions (Core Advantage)The linear expansion coefficient of high-density Jinan blue granite is only 4.5~6×10⁻⁶/℃, about half that of cast iron (11~13×10⁻⁶/℃), and its thermal diffusion speed is much slower than metals,…