| 摘要 |
FIELD: medicine.SUBSTANCE: metal frame is made of valve metals. It is cleaned and processed. A ceramic layer min. 50 mcm thick is formed on the metal frame by micro-arch oxydation in a water electrolyte solution of aluminium sulphate; the frame is then glazed, and the denture is thermally processed in vacuum at temperatures not exceeding allotropic transformation temperatures in the metal frame, but no more than 830°C, for a hold up time of min 15 minutes. A temperature rise rate shall not exceed 15°C/min, whereas a cool down rate is no more than 7°C/min, while the ceramic layer relates to total coating thickness as 0.6 - 0.8.EFFECT: by producing the metal-ceramic structures having the desired physical properties and high strength characteristics, the method enables producing the dentures at lower labour intensity, high quality, reliability and aesthetic characteristics.20 dwg, 10 tbl, 1 ex |
