Alumina ceramic positioning block holder is a precision positioning component made of high-purity alumina ceramic as the core material, which is mainly used in industrial automation, semiconductor manufacturing, precision mechanical assembly and other fields. Compared with traditional metal or engineering plastic positioning blocks, this product shows significant advantages in high temperature, strong corrosion or high wear environments due to its high hardness (Mohs hardness level 9), high temperature resistance (temperature resistance up to 1700℃) and excellent chemical stability. Its low thermal expansion coefficient (about 7×10⁻⁶/℃) can ensure dimensional stability during long-term operation of the equipment, and is especially suitable for scenarios where submicron positioning accuracy is required, such as optical instrument calibration, wafer processing positioning, etc. The positioning block holder is precisely ground-grained and processed, and the plane degree error is controlled within 2μm, and the repeat positioning accuracy reaches ±0.5μm, which can effectively reduce the equipment debugging time. In food packaging machinery, its non-toxic and pollution-free properties comply with FDA certification standards; in laser processing equipment, low light absorption rate (<0.1%) can avoid the impact of thermal deformation on the optical path. Product maintenance only requires regular cleaning and no lubrication, and the service life is 5-8 times longer than that of metal parts.
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