Glass sheet laminate and method for producing same

Patent metadata

Field	Value
Publication number	US-9701565-B2
Application number	US-201314442498-A
Country	US
Kind code	B2
Filing date	Oct 24, 2013
Priority date	Nov 13, 2012
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A method of manufacturing a glass sheet laminate to be formed by integrally laminating two glass sheets includes: laminating the two glass sheets by bringing surfaces thereof in a vicinity of an outer peripheral portion into surface contact with each other; performing laser fusing so as to cut and remove a part of a surface contact portion under a state in which the surface contact portion has a surface roughness of 2.0 nm or less; and processing a fusing end surface of the surface contact portion into a curved surface and sealing the fusing end surface with heat generated when the laser fusing is performed.

First claim

The invention claimed is:

1. A method of manufacturing a glass sheet laminate to be formed by integrally laminating glass sheets, the method comprising:
laminating the glass sheets by bringing surfaces thereof including a preset cutting line into surface contact with each other so as to form a surface contact portion;
performing laser fusing along the preset cutting line included in the surface contact portion under a state in which the surface contact portion has a surface roughness of 2.0 nm or less;
processing a fusing end surface of the surface contact portion into a curved surface and sealing the fusing end surface with heat generated when the laser fusing is performed;
containing a functional member between the glass sheets;
forming the surface contact portion around the functional member; and
performing the laser fusing after the surface contact portion is formed.

2. The method of manufacturing a glass sheet laminate according to claim 1 , further comprising annealing a vicinity of the fusing end surface through irradiation with a laser having a lower energy density than a laser used for the laser fusing.

3. The method of manufacturing a glass sheet laminate according to claim 1 , wherein the glass sheets comprise three or more glass sheets.

4. The method of manufacturing a glass sheet laminate according to claim 1 , wherein the glass sheets have a total thickness of 0.5 mm or less.

5. A method of manufacturing a glass sheet laminate to be formed by integrally laminating glass sheets, the method comprising:
laminating the glass sheets by bringing surfaces thereof including a preset cutting line into surface contact with each other so as to form a surface contact portion;
performing laser fusing along the preset cutting line included in the surface contact portion under a state in which the surface contact portion has a surface roughness of 2.0 nm or less;
processing a fusing end surface of the surface contact portion into a curved surface and sealing the fusing end surface with heat generated when the laser fusing is performed; and
performing compression bonding of the surface contact portion before the laser fusing.

6. A method of manufacturing a glass sheet laminate to be formed by integrally laminating glass sheets, the method comprising:
laminating the glass sheets by bringing surfaces thereof including a preset cutting line into surface contact with each other so as to form a surface contact portion;
performing laser fusing along the preset cutting line included in the surface contact portion under a state in which the surface contact portion has a surface roughness of 2.0 nm or less; and
processing a fusing end surface of the surface contact portion into a curved surface and sealing the fusing end surface with heat generated when the laser fusing is performed,
wherein the surface contact portion is formed under a reduced-pressure atmosphere.

Assignees

• Nippon Electric Glass Co

Inventors

• Fujii Takahide
• INAYAMA Naotoshi

Classifications

• C03B25/025

  Glass sheets · CPC title

• C03B33/07

  Cutting armoured, {multi-layered, coated} or laminated, glass products · CPC title

• C03B23/245

  Hollow glass sheets · CPC title

• C03B33/082 Primary

  using a focussed radiation beam, e.g. laser (C03B33/0855 takes precedence) · CPC title

• H01L51/5253

  Electricity · mapped topic