Claims
- 1. A method of producing a ceramic greenware, comprising the steps of:providing a ceramic powder component as a main ingredient; providing at least one organic solvent-free component as a secondary ingredient; processing the ceramic powder component and the at least one organic solvent-free component to yield a highly viscous starting material; causing an extruder to shape the ceramic powder component and the at least one organic solvent-free component in order to form the ceramic greenware; and granulating the highly viscous starting material before extrusion; wherein the step of granulating is performed according to a strand granulation process that is downstream from a kneading apparatus.
- 2. The method according to claim 1, wherein:the ceramic greenware includes a ceramic green film.
- 3. The method according to claim 2, further comprising the step of:causing a calender to draw off the ceramic green film leaving the extruder.
- 4. The method according to claim 3, further comprising the step of:measuring a thickness of the ceramic green film in the calender.
- 5. The method according to claim 1, wherein:the highly viscous starting material includes a thermoplastic solvent-free starting material.
- 6. The method according to claim 1, wherein:the at least one organic solvent-free component includes at least one of an organic plasticizer and an organic binder.
- 7. The method according to claim 6, wherein:the ceramic powder component includes one of ZrO2 powder and yttrium-stabilized ZrO2 powder, the organic binder includes polyvinylbutyral, and the organic plasticizer includes dibutyl sebacate.
- 8. The method according to claim 1, further comprising the step of:adding at least one of a sintering additive and a dispersant to the highly viscous starting material.
- 9. The method according to claim 1, further comprising the step of:processing the ceramic powder component and the at least one organic solvent-free component in a kneading apparatus to yield the highly viscous starting material.
- 10. The method according to claim 1, further comprising the step of:heating the extruder to a temperature ranging from 130° C. to 150° C.
- 11. The method according to claim 1, wherein:the extruder includes a 3-zone screw that includes a compression zone, a shearing zone, and a mixing zone.
- 12. The method according to claim 1, wherein:the outlet of the extruder includes a mass distribution channel in the form of one of a fishtail and a clothes-hanger.
- 13. A method of producing a ceramic greenware, comprising the steps of:providing a ceramic powder component as a main ingredient; providing at least one organic solvent-free component as a secondary ingredient; processing the ceramic powder component and the at least one organic solvent-free component to yield a highly viscous starting material; and causing an extruder to shape the ceramic powder component and the at least one organic solvent-free component in order to form the ceramic greenware; wherein: the outlet of the extruder includes a mass distribution channel in the form of one of a fishtail and a clothes-hanger; and the outlet of the extruder is provided with a lip that is heated to adjust a thickness of the ceramic greenware.
Priority Claims (1)
Number |
Date |
Country |
Kind |
199 24 134 |
May 1999 |
DE |
|
Parent Case Info
This application is a 371 of PCT/DE00/01588 filed May 19, 2000.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/DE00/01588 |
|
WO |
00 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO00/73239 |
12/7/2000 |
WO |
A |
US Referenced Citations (10)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0 441 219 |
Aug 1991 |
EP |
362041015 |
Feb 1987 |
JP |
9917390 |
Apr 1999 |
WO |
Non-Patent Literature Citations (1)
Entry |
Abstract of JP 362041015, Feb. 1987. |