Manufacturing method and manufacturing apparatus of glass panel for glass panel unit
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsMasataka Nonaka, Eiichi Uriu, Kazuya Hasegawa, Tasuku Ishibashi, Hiroyuki Abe
Life of this patent
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Abstract
A manufacturing method of a glass panel for a glass panel unit includes a melting step, a spreading step, an annealing step, a cutting step, and a spacer disposition step. The spacer disposition step is a step of disposing spacers onto a glass sheet and is performed by a spacer disposition device prior to the cutting step.
Claims6
A manufacturing method of a glass panel for a glass panel unit including a pair of glass panels facing each other with a prescribed distance therebetween, a frame member disposed between the pair of glass panels to hermetically bind the pair of glass panels together, an inside space surrounded by the pair of glass panels and the frame member, and a spacer being in the inside space and being in contact with the pair of glass panels, the manufacturing method comprising:
- a melting step of melting a raw material of glass to produce melted glass;
- a spreading step of spreading the melted glass onto melted metal to produce a glass sheet;
- an annealing step of pulling out and annealing the glass sheet;
- a cutting step of cutting the glass sheet annealed;
- and
- a spacer disposition step of disposing the spacer onto the glass sheet, the spacer disposition step being performed prior to the cutting step.
A manufacturing apparatus of a glass panel for a glass panel unit including a pair of glass panels facing each other with a prescribed distance therebetween, a frame member disposed between the pair of glass panels to hermetically bind the pair of glass panels together, an inside space surrounded by the pair of glass panels and the frame member, and a spacer being in the inside space and being in contact with the pair of glass panels, the manufacturing apparatus comprising, in order downstream of a flow of glass,
- a melting bath in which a raw material of glass is melted to produce melted glass;
- a float bath in which the melted glass is spread onto melted metal to produce a glass sheet;
- an annealing device configured to pull the glass sheet out of the float bath and anneal the glass sheet;
- and
- a cutting device configured to cut the glass sheet annealed, wherein
- the manufacturing apparatus further comprises a spacer disposition device that is disposed upstream of the cutting device and configured to dispose the spacer onto the glass sheet.
Dependencies are inferred from the claim text.