Glass composition formulated for a glass-metal bond of a tube collector and glass-metal bond made with glass of said glass composition
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C03C-003/091
C03C-003/089
C03C-003/083
C03C-003/085
C03C-003/087
C03C-003/078
H01L-025/00
H01L-031/00
H01L-031/042
H02N-006/00
출원번호
US-0557826
(2009-09-11)
등록번호
US-8178451
(2012-05-15)
우선권정보
DE-10 2008 047 280 (2008-09-16)
발명자
/ 주소
Dick, Erhard
Collignon, Johann
Zettl, Wolfgang
Tratzky, Stephan
출원인 / 주소
Schott AG
대리인 / 주소
Striker, Michael J.
인용정보
피인용 횟수 :
1인용 특허 :
6
초록▼
The glass-metal bond for a tube collector includes a glass tube and metal part bonded to the glass tube. In order to match the thermal expansion properties, the glass tube has the following composition: SiO2, 73-77 wt. %; B2O3, 6-8 wt. %; Al2O3, 6-6.5 wt. %; Na2O, 5.5-7 wt. %; K2O, 1-3 wt. %; CaO, 0
The glass-metal bond for a tube collector includes a glass tube and metal part bonded to the glass tube. In order to match the thermal expansion properties, the glass tube has the following composition: SiO2, 73-77 wt. %; B2O3, 6-8 wt. %; Al2O3, 6-6.5 wt. %; Na2O, 5.5-7 wt. %; K2O, 1-3 wt. %; CaO, 0.5-3.2 wt. %; MgO, 0-2 wt. %; Fe2O3, 50-150 ppm; and TiO2 0-100 ppm. The ratio of the sum of the alkaline-earth metal oxides (in mol %) to the sum of the alkali metal oxides (in mol %) is ≦0.6. The metal part is preferably made of metal material no. 1.3981 according to DIN 17745. The glass composition itself is also part of the invention.
대표청구항▼
1. A glass-metal bond in a tube collector of a solar energy collection apparatus, said glass-metal bond comprising a glass tube and a metal component bonded to the glass tube, wherein said glass tube has a glass composition comprising: SiO273-77wt. %B2O36-5.3×10−6/K to 5.8×10−6/K, a glass transforma
1. A glass-metal bond in a tube collector of a solar energy collection apparatus, said glass-metal bond comprising a glass tube and a metal component bonded to the glass tube, wherein said glass tube has a glass composition comprising: SiO273-77wt. %B2O36-5.3×10−6/K to 5.8×10−6/K, a glass transformation temperature of at most 580° C., a processing temperature of at most 1215° C., a water-resistance class of HGB 1 according to DIN ISO 719, an acid-resistance class of S1 according to DIN 12116, an alkali-resistance class of S2 according to DIN ISO 695, and a solar transmission of >92% for wavelengths from 300 to 2500 nm. 2. The glass-metal bond according to claim 1, wherein said glass composition comprises: SiO273-77wt. %B2O36.7-7.5wt. %Al2O36.3-6.5wt. %Na2O5.8-6.8wt. %K2O1-2wt. %CaO2.5-3.2wt. %MgO0.4-1wt. %Fe2O370-150ppmTiO20-5.3×10−6/K to 5.8×10−6/K, a glass transformation temperature of at most 580° C., processing temperature of at most 1215° C., a water-resistance class of HGB 1 according DIN ISO 719, an acid-resistance class of S1 according to DIN 12116, an alkali-resistance class of S2 according to DIN ISO 695, and a solar transmission of >92% for wavelengths from 300 to 2500 nm. 3. The glass-metal bond according to claim 1, wherein said glass composition comprises 0.1-0.3 wt. % chloride and/or 0.1-0.3 wt. % fluoride. 4. The glass-metal bond according to claim 1, wherein, except for impurities, said glass composition consists of: SiO273-77wt. %B2O36-5.3×10−6/K to 5.8×10−6/K, glass transformation temperature of at most 580° C., processing temperature of at most 1215° C., a water-resistance class of HGB 1 according to DIN ISO 719, an acid-resistance class of S1 according to DIN 12116, an alkali-resistance class of S2 according to DIN ISO 695, and a solar transmission of >92% for wavelengths from 300 to 2500 nm. 5. The glass-metal bond according to claim 1, wherein said sum of said amounts of said alkaline-earth metal oxides in said glass composition is >0.9 mol % and ≦3.9 mol %. 6. The glass-metal bond according to claim 1, wherein said ratio of said sum of said amounts of said alkaline-earth metal oxides, in mol %, to the said sum of said amounts of said alkali metal oxides, in mol %, is >0.1 and 5.3×10−6/K to 5.8×10−6/K, a glass transformation temperature of at most 580° C., a processing temperature of at most 1215° C., a water-resistance class of HGB 1 according to DIN ISO 719, an acid-resistance class of S1 according to DIN 12116, an alkali-resistance class of S2 according to DIN ISO 695, and a solar transmission of >92% for wavelengths from 300 to 2500 nm. 12. The glass according to claim 11, wherein said glass composition comprises: SiO273-77wt. %B2O36.7-7.5wt. %Al2O36.3-6.5wt. %Na2O5.8-6.8wt. %K2O1-2wt. %CaO2.5-3.2wt. %MgO0.4-1wt. %Fe2O370-150ppmTiO20-5.3×10−6/K to 5.8×10−6/K, a glass transformation temperature of at most 580° C., a processing temperature of at most 1215° C., a water-resistance class of HGB 1 according to DIN 719, an acid-resistance class of S1 according to DIN 12116, an alkali-resistance class of S2 according to DIN ISO 695, and a solar transmission of >92% for wavelengths from 300 to 2500 nm. 13. The glass according to claim 11, wherein said glass composition comprises 0.1-0.3 wt. % chloride and/or 0.1-0.3 wt. % fluoride. 14. The glass according to claim 11, wherein, except for impurities, said glass composition consists of: SiO273-77wt. %B2O36-5.3×10−6/K to 5.8×10−6/K, a glass transformation temperature of at most 580° C., a processing temperature of at most 1215° C., a water-resistance class of HGB 1 according to DIN ISO 719, an acid-resistance class of S1 according to DIN 12116, an alkali-resistance class of S2 according to DIN ISO 695, and a solar transmission of >92% for wavelengths from 300 to 2500 nm. 15. The glass according to claim 11, wherein said sum of said amounts of said alkaline-earth metal oxides in said glass composition is >0.9 mol % and ≦3.9 mol %. 16. The glass according to claim 11, wherein said ratio of said sum of said amounts of said alkaline-earth metal oxides, in mol %, to the said sum of said amounts of said alkali metal oxides, in mol %, is >0.1 and <0.55. 17. The glass according to claim 11, wherein a ratio of a total amount of Al2O3, in mol %, in said glass composition to said sum of said amounts of said alkali metal oxides, in mol %, is <0.6. 18. The glass according to claim 11, wherein a ratio of respective total amounts of Fe2+ and Fe3+ in the glass composition is from 0.03-0.1. 19. The glass according to claim 18, wherein said ratio of said respective total amounts of said Fe2+ and said Fe3+ is from 0.045-0.055.
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