{"id":1683,"date":"2026-01-28T09:00:50","date_gmt":"2026-01-28T01:00:50","guid":{"rendered":"https:\/\/jtlcnc.com\/?p=1683"},"modified":"2026-01-28T09:03:46","modified_gmt":"2026-01-28T01:03:46","slug":"advanced-material-properties-of-granite-surface-plates-for-precision-metrology","status":"publish","type":"post","link":"https:\/\/jtlcnc.com\/ru\/2026\/01\/28\/advanced-material-properties-of-granite-surface-plates-for-precision-metrology\/","title":{"rendered":"\u0423\u043b\u0443\u0447\u0448\u0435\u043d\u043d\u044b\u0435 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 \u0433\u0440\u0430\u043d\u0438\u0442\u043d\u044b\u0445 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0441\u0442\u0438\u043d \u0434\u043b\u044f \u043f\u0440\u0435\u0446\u0438\u0437\u0438\u043e\u043d\u043d\u043e\u0439 \u043c\u0435\u0442\u0440\u043e\u043b\u043e\u0433\u0438\u0438"},"content":{"rendered":"

Keywords: Granite surface plate, material properties, metrological precision, dimensional stability
Granite surface plates are renowned in metrology for their exceptional physical and mechanical properties. Key characteristics include:<\/p>\n\n\n\n

    \n
  1. High Hardness & Uniform Structure: With Shore hardness exceeding 70Hs and uniform mineral distribution, granite plates resist surface deformation under heavy loads.<\/li>\n\n\n\n
  2. Thermal Stability: A linear expansion coefficient of 4.61\u00d710\u207b\u2076\/\u00b0C ensures minimal thermal distortion during use, critical for temperature-controlled environments.<\/li>\n\n\n\n
  3. Chemical Inertness: Resistant to acids, alkalis, and organic solvents, making them suitable for harsh industrial applications.<\/li>\n\n\n\n
  4. Precision Manufacturing: Modern plates achieve flatness deviations within \u00b13\u03bcm over large areas (e.g., 1000\u00d71000mm), adhering to ISO 8512-2 and AS 1004.2 standards.<\/li>\n<\/ol>\n\n\n\n

    Comparative analysis with cast iron plates reveals granite’s superiority in long-term dimensional stability and corrosion resistance. Recent innovations, such as nano-particle-reinforced composites, further enhance wear resistance without compromising homogeneity.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    <\/p>","protected":false},"excerpt":{"rendered":"

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