Sealing ring and preparation method thereof

摘要

The present invention provides a sealing ring and a preparation method thereof. The sealing ring, based on percent by weight, includes 80%-85% of aluminum, 10%-15% of titanium, 0.1 %-1 % of scrap iron, and 4%-4.9% of potassium fluoroaluminate. Moreover, the present invention provides a method for preparing sealing ring, which includes the following steps: Step A: melting the aluminum in a medium-frequency induction furnace, adding the potassium fluoroaluminate to the medium-frequency induction furnace after melting the aluminum, melting and stirring the mixture evenly; Step B: adding titanium scrap or sponge titanium, and scrap iron to the mixture successively, melting and mixing the mixture totally at 800°C to 1200°C, standing the mixture after stirring evenly; Step C: removing scum on the surface; Step D: casting into a mould to obtain a final sealing ring. The invention has the beneficial effects that the sealing ring of the invention has adjustable softening point and melting point, can be used as the sealing ring for different reactors or distillers, ensures smooth running of production process in a high pressure state, and solves the problem that the reactors and distillers are not pressure-proof and not sealable at a high temperature.