In industrial production, especially in scenes with high precision and continuity requirements, XYZT precision gantry moving platform often needs to operate under high load and long-term continuous operation. At this time, the durability of granite components has become a key factor in ensuring the stable operation of the platform.
Structural stability ensures durability
After billions of years of geological changes, the internal mineral crystals are closely arranged, forming an extremely dense and uniform structure. Under high load conditions, ordinary material components may cause internal structural deformation due to pressure, resulting in lower precision or even damage to the platform. Granite components can easily cope with high load challenges due to their superior compressive strength. Research data show that the compressive strength of high-quality granite can reach 200-300MPa, which can withstand the pressure of ordinary steel without significant deformation. Taking a large aviation parts manufacturing enterprise as an example, the XYZT precision gantry movement platform used by the company continues to support the granite components steadily when processing the aircraft engine casing weighing several tons. During the continuous processing process of up to 10 hours, the flatness error of the platform is always controlled within ±0.05mm. It ensures the smooth completion of high-precision milling, drilling and other processes, which fully proves the excellent ability of granite components to maintain structural stability under high load.
Wear resistance for long-term operation
Long continuous operation means frequent friction between moving parts, which puts a great test on the wear resistance of components. Granite hardness is higher, Mohs hardness is usually 6-7, compared to many metal materials more resistant to wear. In actual production, such as the XYZT platform of the automobile mold manufacturing workshop, large-scale mold billets need to be precision machined day after day, and the platform runs for up to 16 hours a day. After long-term use monitoring, the surface wear of granite components is extremely slight, after 10,000 hours of continuous operation, the surface wear of granite in contact with the moving parts of the platform is only 0.02mm, far lower than that of ordinary metal materials, effectively reducing the precision decline caused by wear and equipment maintenance frequency, to ensure the long-term stable operation of the platform.
Thermal stability assisted limit condition
The heat production of the equipment is significant during high load operation, and the temperature change will easily affect the component performance. The thermal expansion coefficient of granite is extremely low, generally in 5-7 ×10⁻⁶/℃, and the size changes are minimal under large fluctuations in temperature. In the photolithography process of an electronic chip manufacturing enterprise, XYZT precision gantry movement platform needs to carry high-precision photolithography equipment for a long time, which generates a lot of heat when the equipment works, and the workshop temperature can rise by 5-10℃ in a short time. In this environment, the platform supported by granite components has always remained stable, without obvious thermal deformation due to temperature changes, ensuring the nanoscale precision of chip lithography, achieving ultra-long and stable operation of 20 hours a day, breaking the limit working time of similar ordinary material platforms, highlighting the durability advantage of granite components in complex thermal environments.
Post time: Apr-14-2025