Graphite scrapers for vacuum pumps require high material density, small particle size, and low expansion coefficient. The melting point of high-purity graphite is 3850±50℃, and the boiling point is 4250℃. Even after being burned by ultra-high temperature arc, the weight loss is very small, and the thermal expansion coefficient is also very small. The strength of graphite increases with the increase of temperature. The characteristics of graphite are highly consistent with the application of graphite scrapers for vacuum pumps. In terms of processing technology, graphite scrapers for vacuum pumps have high tolerance requirements. The surface of the graphite sheet itself must also be smooth, the saw cut must be flat, and there must be no knife marks or car marks to ensure smooth operation of the equipment and low noise.
Graphite scrapers for vacuum pumps require high material density, small particle size, and low expansion coefficient. The melting point of high-purity graphite is 3850±50℃, and the boiling point is 4250℃. Even after being burned by ultra-high temperature arc, the weight loss is very small, and the thermal expansion coefficient is also very small. The strength of graphite increases with the increase of temperature. The characteristics of graphite are highly consistent with the application of graphite scrapers for vacuum pumps. In terms of processing technology, graphite scrapers for vacuum pumps have high tolerance requirements. The surface of the graphite sheet itself must also be smooth, the saw cut must be flat, and there must be no knife marks or car marks to ensure smooth operation of the equipment and low noise.