QA de preguntes recents dels clients
Mar 10, 2022
Després d'un període de classificació, vam tornar a recollir alguns comentaris dels clients i vam fer un article perquè tothom el llegeixi.
P1: Per què la vostra zirconia és verda després de la sinterització?
A1:It is because your finance has been polluted, different types of zirconia have different subsidiary substances during production. when sintering the substance will get rid of zirconia and come to the heart of finance, it made the heart of finance was polluted because the substance doesn't get rid of completely.
Pls, sinter the finance empty immediately to help the substance get rid of completely. Each time sintering the heating elements will have new crystalline film. It is better to change the sintering tray and beads as well.
Consells per evitar la contaminació:
1, No sinteritzeu contínuament diferents tipus de zirconi.
Per exemple, avui sinteritzant blocs blancs, si demà necessiteu sinteritzar blocs pre-ombrejats, haureu de sinteritzar el finançament buit després de blocs blancs i després sinteritzar pre-ombrejat.
2, totes les corones de blocs blancs s'han d'assecar 200 graus 30 minuts abans de la sinterització
P2: Quina diferència hi ha entre SHT Multilayer i 3D-Plus Multilayer?
A2: SHT és un degradat de color. La força és de 1200 MPA i el 45 per cent de translucència.
3D-Plus és un degradat de color i força. Força de 600MPA a 900MPA, translucència del 43% al 49%.
Mentrestant, estem provant un nou 3D E-Plus, la força pot ser màxima de 1100 i la translucència del 47% al 49% .
P3: fractura pontina després del vidre?
A3: Hi ha dues possibilitats per a aquest problema:
1. The upper gingival porcelain requires repeated enamels, and the burned bridge undergoes multiple heating and cooling. Pulling and cracking are caused by the too fast cooling rate.
Suggestions: Lower the cooling rate and reduce the number of times porcelain loading
Porcelain furnace cooling program should be set a little slower, porcelain furnace cooling too fast will cause thermal stress, thermal shock, ceramics are most afraid of rapid cooling and heating, porcelain furnace cooling down a little bit, the lower temperature limit is set a little lower
This needs to be paid attention to in the porcelain furnace, the mouthful of rapid cold causes thermal stress cracking
Generally, the teeth in the porcelain furnace come out at 700 degree and come into contact with the air, and the teeth at 700 degree encounter the cold air at 25 degree , which causes cracking.
Easiest to break from the missing position, because the missing position is solid, accumulates more heat, and dissipates slowly
2. When the porcelain is cut, the teeth are cut vertically with fine slices. (In the past, metal teeth and porcelain teeth were cut in this way, so technicians are used to it).
Suggestion: When the car porcelain is cut between the teeth, it should be cut sideways in the direction of the teeth. However, this possibility is generally small.








