Method of manufacturing glass panel and glasspanel manufactured by the method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E06B-003/24
E04C-002/54
C03C-027/00
출원번호
US-0936861
(2000-03-22)
우선권정보
JP-0082609 (1999-03-25); JP-0165366 (1999-06-11)
국제출원번호
PCT/JP00/01752
(2000-03-22)
국제공개번호
WO00/58234
(2000-10-05)
발명자
/ 주소
Sakaguchi, Koichi
Domi, Shinjiro
Nakagaki, Shigeki
Suganuma, Katsuaki
출원인 / 주소
Nippon Sheet Glass Co., Ltd.
대리인 / 주소
Fulbright & Jaworski L.L.P.
인용정보
피인용 횟수 :
20인용 특허 :
1
초록▼
A glass panel (P) including a pair of glass sheets ( 1 A), ( 1 B) disposed in a spaced relationship with each other with forming a gap (V) therebetween, characterized in that peripheral edges of the glass sheets ( 1 A), ( 1 B) are bonded directly by a single metal material ( 3 ) for sealing the gap
A glass panel (P) including a pair of glass sheets ( 1 A), ( 1 B) disposed in a spaced relationship with each other with forming a gap (V) therebetween, characterized in that peripheral edges of the glass sheets ( 1 A), ( 1 B) are bonded directly by a single metal material ( 3 ) for sealing the gap (V) hermetically.
대표청구항▼
1. A glass panel including a pair of glass sheets disposed in opposition to each other with forming a gap therebetween, peripheral edges of the glass sheets being bonded directly by a single-alloy metal material for sealing the gap hermetically, wherein that the panel satisfies the following relatio
1. A glass panel including a pair of glass sheets disposed in opposition to each other with forming a gap therebetween, peripheral edges of the glass sheets being bonded directly by a single-alloy metal material for sealing the gap hermetically, wherein that the panel satisfies the following relationship: T L ≦( T S 100)where T L is the liquidus temperature of the metal material in degrees Celsius and T S is the strain point of the glass sheets in degrees Celsius. 2. The glass panel according to claim 1, wherein the metal material contains not more than 0.1 wt. % or substantially zero wt. % of lead. 3. The glass panel according to claim 1, wherein the metal material contains at least two components selected from the group consisting of Sn, Zn, Al, Si and Ti. 4. The glass panel according to claim 1, wherein the metal material contains oxygen in the range from 0.0001 to 1.5 wt. %. 5. The glass panel according to claim 1, wherein the pair of glass sheets have different dimensions so that one glass sheet is disposed in opposition to the other glass sheet with the one sheet projecting at a peripheral edge thereof by a width of 1 to 10 mm from each peripheral edge of the other sheet with the metal material being charged from the projecting portion of the one glass sheet into the gap between the glass sheets. 6. The glass panel according to claim 1, wherein the gap is sealed so as to keep a depressurized condition. 7. A method of manufacturing a glass panel comprising the steps of:disposing spacers between a pair of glass sheets so as to form a gap therebetween;charging a molten single-alloy metal material to the peripheral edges of the glass sheets the metal material satisfying the following relationship: T L ≦( T S −100) where T L is the liquidus temperature of the metal material in degrees Celsius and T S is the strain point of the glass sheets in degrees Celsius; anddirectly bonding the glass sheets and the metal material together so as to seal the gap hermetically. 8. The method of manufacturing a glass panel according to claim 7, further comprising the steps of heating and maintaining the pair of glass sheets at a temperature below the liquidus temperature of the metal material, the molten metal material having a portion coming into contact with an atmosphere and a further portion not coming into contact with the atmosphere before the metal material is charged into the gap between the glass sheets and charging into the gap at the peripheral edge of the glass sheets only the portion of the metal material which did not come into contact with the atmosphere, while preventing the portion which came into contact with the atmosphere from being charged into the gap. 9. The method of manufacturing a glass panel according to claim 7, wherein the step of charging the molten metal material into the gap between the glass sheets employs a guide for guiding the metal material to the gap, at least a portion of the guide being inserted into the gap. 10. The method of manufacturing a glass panel according to claim 9, wherein the guide is a plate-like or bar-like guide. 11. The manufacturing method of a glass panel according to claim 7, wherein the method employs a stimulus conducting member for providing a physical stimulus to the interface between the molten metal material and the glass sheet surface so as to promote the direct bonding therebetween, at least a portion of the stimulus conducting member being inserted into the gap. 12. The manufacturing method of a glass panel according to claim 11, wherein the stimulus conducting member is a plate-like or bar-like member. 13. The manufacturing method of a glass panel according to claim 11, wherein the physical stimulus for promoting the direct bonding is provided by mechanical movement of the stimulus conducting member. 14. The method of manufacturing a glass panel according to claim 11, wherein that unevenness is provided on a surface of the stimulu s conducting member. 15. The manufacturing method of a glass panel according to claim 9, wherein the guide and/or the stimulus conducting member is moved along the gap. 16. The manufacturing method of a glass panel according to claim 13, wherein said mechanical movement of the stimulus conducting member is either at least one of rotation and vibration. 17. The manufacturing method of a glass panel according to claim 9, wherein that at least one of the guide and the stimulus conducting member is made of the metal material. 18. The manufacturing method of a glass panel according to claim 11, wherein the guide and the stimulus conducting member are provided as a single member having the functions of both of them. 19. The manufacturing method of a glass panel according to claim 9, wherein the pair of glass sheets have different dimensions from each other and one glass sheet is disposed in opposition to the other glass sheet with a peripheral edge of the former projecting from a peripheral edge of the latter by a width of 1 mm through 10 mm, and the metal material is charged from the projecting portion of the one glass sheet toward the gap by utilizing capillary phenomenon. 20. The manufacturing method of a glass panel according to claim 9, wherein the pair of glass sheets are heated and maintained at a temperature below the liquidus temperature of the metal material and under this condition, vibration is applied to at least one of the molten metal material or the glass sheets, so as to cause the metal material to permeate and to be charged into the gap by utilizing capillary phenomenon. 21. The manufacturing method of a glass panel according to claim 20, wherein the vibration includes two or more kinds of frequencies and either one or both of them is/are applied to at least one of the metal material and the glass sheets. 22. The manufacturing method of a glass panel according to claim 21, wherein the two or more kinds of vibrations having different frequencies of either a low frequency of 1 Hz to 10 kHz or a ultrasonic frequency of 15 to 100 kHz. 23. The manufacturing method of a glass panel according to claim 7, wherein the metal material contains not more than 0.1 wt. % or substantially zero wt. % of lead. 24. The manufacturing method of a glass panel according to claim 7, wherein the metal material contains two or more kinds of components selected from a group consisting of Sn, Zn, Al, Si and Ti. 25. The manufacturing method of a glass panel according to claim 7, wherein the metal material contains O (oxygen) in the range from 0.0001 to 1.5 wt. %. 26. The manufacturing method of a glass panel according to claim 7, wherein the gap is sealed so as to keep a depressurized condition.
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