Technical innovation points of microwave denture sintering furnace :
( 1) The microwave heating of the microwave denture sintering furnace generates heat through the sample itself, and the sample body is the heating material. Compared with the traditional resistance heating, the zirconia material as a whole generates heat by itself, and there is no pollution of the heat source material, which can overcome the problem of pollution caused by the high temperature volatilization of the electrothermal material. .
(2) Compared with conventional sintering technology, microwave sintered zirconia ceramic materials are superior to conventional sintering in sintering density, Vickers hardness and biaxial bending strength. Microwave sintered zirconia dentures have high grain consistency and compactness.
(3) The process parameters are solidified in the equipment, and users can operate with one button according to their needs. The process parameters are optimized through the accumulation of a large number of experimental data. When designing the automatic control program, the algorithm determined according to the thermodynamic model and a large number of experimental verification data can be automatically calculated and the most reasonable control parameters can be automatically given.
⑷ Various original special crucibles are durable and maintain the uniformity of the temperature field during the sintering process. The special crucible is made by composite sintering technology, fully considering the characteristics of microwave-assisted heating, and has the function of microwave-assisted heating, which can ensure the rapid heating of zirconia ceramics at low temperature (below 400 °C).
⑸ The microwave denture sintering furnace is compatible with other zirconia denture materials, and the sintering effect is perfect.
Technical advantages of microwave denture sintering furnace products
(1) Accurate control technology of microwave source power and process temperature.
Through years of technical accumulation and practice, the company has become increasingly sophisticated in the precise control technology of microwave source power and process temperature. In terms of high-temperature microwave kilns, at 1400 °C, the temperature stability of the kiln is ±1 °C, and the temperature uniformity is ±5℃, which is better than the level of resistance furnace.
⑵ Shielding technology to prevent microwave leakage
In addition to good performance of microwave heating equipment, safety is also particularly important, and microwave leakage is one of the key points. Safe and reliable microwave shielding design, multiple anti-leakage protections are accumulated over many years to ensure the safety of equipment use. Regarding microwave shielding technology, the company has obtained two patents and applied it to various equipment; its effect can ensure that the microwave leakage intensity is less than 1000μW/cm2, which is far stricter than the national standard of less than 5000μW/cm2.
(3) Rapid cooling can be achieved, from 1500 °C to below 400 °C within 1 hour, improving production efficiency.
⑷ The automation program is high, which can realize one-button operation.