Patent ID: 11858867
Assignee: CHENGDU BESMILE MEDICAL TECHNOLOGY CORP. LTD.
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 10:
11. The zirconia treatment method according to claim 1, wherein surface roughening comprises:
(1) sandblasting the zirconia ceramic using 30-60 μm zirconia powder for 5-10 s under a pressure of 0.2-0.3 MPa; and then washing the sandblasted zirconia ceramic 3-5 times with deionized water;
(2) mixing hydrochloric acid and nitric acid, wherein the hydrochloric acid has a concentration of 1-2 mol/L, the nitric acid has a concentration of 1-2 mol/L, and the volume ratio of hydrochloric acid to nitric acid is 1:2-3; heating the mixed hydrochloric acid and nitric acid to 70-80° C. to obtain a mixed acid solution; and soaking the sandblasted zirconia ceramic in the mixed acid solution for 10-15 min; and
(3) washing the acid-soaked zirconia ceramic 3-5 times with deionized water.