Granite platform

Product Name: granite platform (granite plate)

granite platform is mainly used for working face. Adopt grinding and scraping technology to protect constant temperature in production and processing. It is used to check the unevenness and straightness in the inspection of machine tools. Granite measuring tools can be matched with a square to test the verticality of two machine parts that cannot be tested only with a square; Granite measuring tools are also suitable for equipment installation and inspection. The granite platform with a temperature of (20 ± 5) ℃ is an ideal datum for the inspection of instruments, tools and mechanical parts. Especially for the measurement with appropriate accuracy, the cast iron plate is dwarfed by its characteristics

granite platform is also known as granite flat plate. The flatness inspection of granite platform has a different concept from that in the past. It is no longer blindly pursuing the contact point of granite platform in use. Generally, the side can be important in the flatness inspection. Due to the increasing specifications of workpieces and granite platform, the requirements of workpieces on granite platform are also changing, The number of contact points of granite platform has a great relationship with the processing cost of granite platform. Therefore, wise users no longer deliberately require the contact points of granite platform

granite is mainly composed of pyroxene, plagioclase, a small amount of olivine, biotite and a small amount of magnetite. It has black color and fine structure. After hundreds of millions of years of aging, it has uniform texture, good stability, high strength and good hardness, and can maintain appropriate accuracy under heavy load. It is suitable for industrial production and laboratory measurement

specific gravity: 2970-3070kg / m3

compressive strength: 245-254kg / mm2

elastic grinding capacity: 1.27-1.47n/mm2

linear expansion coefficient: 4.6 × 10-6 / ℃

water absorption 0.13%

shore hardness above hs70

the accuracy is 000, 00, 0 and 1 respectively. It is an ideal tool for marking and inspection in meticulous processing enterprises