Glass ribbon producing apparatus and process for producing the same
First Claim
1. A glass ribbon producing apparatus which feeds molten glass to a forming member and causes the molten glass to flow downward from the forming member to form a sheet-like glass ribbon, comprising reheating portion provided on a transport route for the glass ribbon caused to flow downward from the forming member,wherein the reheating portion is constructed to reheat the glass ribbon to cause a sheet thickness of the glass ribbon below the reheating portion to be smaller than the sheet thickness of the glass ribbon above the reheating portion.
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Accused Products
Abstract
A glass ribbon producing apparatus (1) which feeds molten glass (Y) to a forming member (2) and causes the molten glass (Y) to flow downward from the forming member (2) to form a sheet-like glass ribbon (G) includes reheating portion (5) provided on a transport route for the glass ribbon (G) caused to flow downward from the forming member (2), and is configured so that the glass ribbon (G) is reheated by the reheating portion (5) to cause the sheet thickness of the glass ribbon (G) below the reheating portion (5) to be smaller than that of the glass ribbon (G) thereabove.
53 Citations
31 Claims
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1. A glass ribbon producing apparatus which feeds molten glass to a forming member and causes the molten glass to flow downward from the forming member to form a sheet-like glass ribbon, comprising reheating portion provided on a transport route for the glass ribbon caused to flow downward from the forming member,
wherein the reheating portion is constructed to reheat the glass ribbon to cause a sheet thickness of the glass ribbon below the reheating portion to be smaller than the sheet thickness of the glass ribbon above the reheating portion.
- 2. A glass ribbon producing apparatus which feeds molten glass to a forming member and causes the molten glass to flow downward from the forming member to form a sheet-like glass ribbon, comprising reheating portion for reheating and softening the glass ribbon which is temporarily cooled while being caused to flow downward from the forming member.
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3. A glass ribbon producing apparatus which feeds molten glass to a forming member and causes the molten glass to flow downward from the forming member to form a sheet-like glass ribbon, comprising:
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controlling portion provided immediately below the forming member, for controlling a widthwise contraction of the glass ribbon; and reheating portion provided immediately below the controlling portion, for reheating and softening the glass ribbon in which the widthwise contraction is controlled by the controlling portion. - View Dependent Claims (4, 29, 31)
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9. A process for producing a glass ribbon by feeding molten glass to a forming member and causing the molten glass to flow downward from the forming member to form a sheet-like glass ribbon, comprising a reheating step of reheating the glass ribbon caused to flow downward from the forming member,
wherein, by reheating the glass ribbon in the reheating step, a sheet thickness of the glass ribbon after the reheating is made smaller than the sheet thickness of the glass ribbon before the reheating.
- 10. A process for producing a glass ribbon by feeding molten glass to a forming member and causing the molten glass to flow downward from the forming member to form a sheet-like glass ribbon, comprising a reheating step of reheating and softening the glass ribbon which is temporarily cooled while being caused to flow downward from the forming member.
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11. A process for producing a glass ribbon by feeding molten glass to a forming member and causing the molten glass to flow downward from the forming member to form a sheet-like glass ribbon, comprising:
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a controlling step of controlling a widthwise contraction of the glass ribbon immediately below the forming member; and a reheating step of reheating and softening, immediately after the controlling step, the glass ribbon in which the widthwise contraction is controlled in the controlling step. - View Dependent Claims (19, 21, 23, 25, 27)
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Specification