Patent
Method of forming glass-ceramic parts and/or glass parts
| العنوان: | Method of forming glass-ceramic parts and/or glass parts |
|---|---|
| Patent Number: | 7,000,430 |
| تاريخ النشر: | February 21, 2006 |
| Appl. No: | 09/937074 |
| Application Filed: | March 22, 2000 |
| مستخلص: | The invention relates to a method of producing glass-ceramic parts and/or glass parts by deformation of a glass-ceramic blank and/or glass blank. The invention is characterized in that forming is carried out using infrared radiation. |
| Inventors: | Fotheringham, Ulrich (Wiesbaden, DE); Esemann, Hauke (Wörrstadt, DE); Hoppe, Bernd (Ingelheim, DE); Bader, Hubertus (Mainz, DE); Hahn, Gerhard (Allenfeld, DE); Garsche-Andres, Markus (Stadecken-Elsheim, DE); Brinkmann, Matthias (Klein-Winternheim, DE); Greulich-Hickmann, Norbert (Mainz, DE) |
| Assignees: | Schott AG (Mainz, DE) |
| Claim: | 1. A method for producing glass-ceramic parts and/or glass parts comprising: forming a glass-ceramic and/or glass blank using infrared radiation, wherein the infrared radiation is a short-wave infrared radiation from an infrared radiation source with a color temperature of more than 1500 K, and a portion of the infrared radiation acts directly on the glass-ceramic blank and/or glass blank, and another portion of the radiation acts indirectly on the glass-ceramic blank and/or glass blank, and wherein the portion of the radiation acting indirectly on the glass-ceramic blank and/or glass blank is more than 50% of the total radiation impinging on the surfaces of the glass-ceramic blank and/or glass blank. |
| Claim: | 2. The method of claim 1 , wherein a glass-ceramic blank is produced, and said forming step is carried out before the glass-ceramic blank is ceramized. |
| Claim: | 3. The method of claim 1 , wherein a glass-ceramic blank is produced, and said forming step is carried out together with ceramization of the glass-ceramic blank. |
| Claim: | 4. The method of claim 1 , wherein the glass-ceramic blank and/or the glass blank is a glass plate. |
| Claim: | 5. The method of claim 1 , wherein a glass blank is produced, and said forming step is carried out while the glass blank is being softened. |
| Claim: | 6. The method of claim 1 , wherein said forming step further comprises gravity lowering said glass-ceramic blank and/or glass blank. |
| Claim: | 7. The method of claim 1 , wherein said forming step further comprises vacuum lowering said glass-ceramic blank and/or glass blank. |
| Claim: | 8. The method of claim 1 , wherein said forming step further comprises lowering said glass-ceramic blank and/or glass blank by means of a molding plug. |
| Claim: | 9. The method of claim 1 , wherein said forming step further comprises lowering said glass-ceramic blank and/or glass blank by blowing. |
| Claim: | 10. The method of claim 1 , wherein said forming step further comprises a directional infrared irradiation of the glass-ceramic blank and/or glass blank using a plurality of directional infrared radiators. |
| Claim: | 11. The method of claim 1 , wherein said forming step further comprises the use of shields disposed between the radiation source and the glass-ceramic and/or glass blank. |
| Claim: | 12. The method of claim 1 , wherein said forming step is carried out in an infrared radiation chamber. |
| Claim: | 13. The method of claim 12 , wherein said radiation is carried out by means of infrared radiators disposed in the infrared radiation chamber. |
| Claim: | 14. The method of claim 1 , further comprising the additional step of preheating the glass-ceramic blank and/or glass blank. |
| Claim: | 15. The method of claim 14 , wherein the glass-ceramic blank and/or glass blank is preheated in a conventional oven. |
| Claim: | 16. The method of claim 1 , further comprising the additional step of reheating the glass-ceramic and/or the glass blank after said forming step. |
| Claim: | 17. The method of claim 16 , wherein the glass-ceramic and/or the glass blank is reheated in a conventional oven. |
| Claim: | 18. The method of claim 1 , wherein the color temperature of the radiation source is more than 2000 K. |
| Current U.S. Class: | 65/332 |
| Patent References Cited: | 1630724 May 1927 Tillyer 1953023 March 1934 Mulholland 2125912 August 1938 George et al. 2131873 October 1938 Goodwillie 2825183 March 1958 Riedel 2973190 February 1961 Schuller 3045994 July 1962 Longenecker 3120433 February 1964 Van Zee 3193367 July 1965 Giffen 3620706 November 1971 Spanoudis 3880632 April 1975 Podvigalkina 4213753 July 1980 Negroni et al. 4547650 October 1985 Arditty et al. 4789771 December 1988 Robinson et al. 4889547 December 1989 Lecourt et al. 4983202 January 1991 Deb et al. 5931152 August 1999 Fafet et al. 6710306 March 2004 Hahn et al. 2003/0182966 October 2003 Fotheringham et al. 740 892 December 1943 807 132 June 1951 1 024 684 August 1953 24 32 538 January 1976 0 058 529 August 1982 0 112 224 June 1984 0 133 847 March 1985 0133847 June 1985 0317409 May 1989 0 376 509 July 1990 802 598 September 1936 2 267 987 November 1975 2 386 492 November 1978 2 505 472 November 1982 2 606 866 May 1988 651989 April 1951 729 072 May 1955 2 320 021 June 1998 07-18323 January 1995 560 841 June 1977 660 949 May 1979 WO 98/57899 December 1998 |
| Assistant Examiner: | Lopez, Carlos |
| Primary Examiner: | Griffin, Steven P. |
| Attorney, Agent or Firm: | Baker & Daniels |
| رقم الانضمام: | edspgr.07000430 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |