Glass bonding material and multilayer glass

Patent metadata

Field	Value
Publication number	US-10696589-B2
Application number	US-201715602569-A
Country	US
Kind code	B2
Filing date	May 23, 2017
Priority date	Dec 2, 2014
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

This glass bonding material (21) is made of a cladding material (1) in which at least a first layer (11) made of an Al-based alloy and configured to be bonded to glass and a second layer (12) made of an Fe—Ni based alloy having a thermal expansion coefficient from 30° C. to 400° C. of 11.5×10−6 (K−1) or less are bonded.

First claim

What is claimed is:

1. A glass bonding material for bonding glass plates to each other;
the glass bonding material comprising a fritted glass and a cladding material;
wherein the cladding material comprises at least a first layer made of an Al-based alloy bonded to a second layer made of an Fe—Ni based alloy having a thermal expansion coefficient from 30° C. to 400° C. of 11.5×10 −6 (K −1 ) or less,
wherein the first layer has a region that is capable of being bonded to the glass plates via the fritted glass, and
wherein the thickness of the first layer is twice or more the thickness of the second layer.

2. The glass bonding material according to claim 1 , wherein a Young's modulus of the cladding material is 110 GPa or less.

3. The glass bonding material according to claim 1 , wherein the glass plates are made of soda-lime glass, and
a thermal expansion coefficient X×10 −6 (K −1 ) from 30° C. to 400° C. of the cladding material satisfies a relationship of 7.5≤X≤11.5.

4. The glass bonding material according to claim 1 , wherein
a Young's modulus of the first layer made of the Al-based alloy is smaller than a Young's modulus of the second layer made of the Fe—Ni based alloy.

5. The glass bonding material according to claim 1 , wherein the second layer made of the Fe—Ni based alloy is arranged at a position opposed to a region where the first layer and the fritted glass are bonded in a thickness direction of the cladding material.

6. The glass bonding material according to claim 1 , wherein the cladding material is made of an overlay type cladding material of a three-layer structure in which the first layer, the second layer, and a third layer are bonded, the third layer being made of an Al-based alloy and bonded to a surface of the second layer opposite to a surface to which the first layer is bonded.

7. The glass bonding material according to claim 6 , wherein the first layer and the third layer have approximately the same thickness.

8. The glass bonding material according to claim 1 , wherein the Fe—Ni based alloy constituting the second layer comprises 28 mass % or more and 50 mass % or less of Ni, 0 mass % or more and 20 mass % or less of Co, 0 mass % or more and 8 mass % or less of Cr, and the balance being Fe and inevitable impurity elements.

9. The glass bonding material according to claim 8 , wherein the Fe—Ni based alloy constituting the second layer contains 4 mass % or more and 8 mass % or less of Cr.

10. The glass bonding material according to claim 1 , wherein the Al based alloy constituting the first layer contains 99.0 mass % or more of Al.

11. The glass bonding material according to claim 1 , wherein the glass bonding material is used for a sealing part of a vacuum multilayer glass.

12. The glass bonding material according to claim 2 , wherein a Young's modulus of the cladding material is 85 GPa or more and 100 GPa or less.

13. The glass bonding material according to claim 1 , wherein the second layer is not arranged at a position facing a region where the first layer and the fritted glass are not bonded but is arranged at a position opposed to a region where the first layer and the fritted glass are bonded.

14. The glass bonding material according to claim 13 , wherein the first layer is arranged both in the region where the first layer and the fritted glass are bonded and in the region where the first layer and the fritted glass are not bonded.

15. The glass bonding material according to claim 1 , wherein a Young's modulus of the first layer made of the Al-based alloy is smaller than a Young's modulus of the second layer made of the Fe—Ni based alloy, and
the second layer is arranged on a surface opposite to a region where the first layer and the fritted glass are bonded at a position facing the region where the first layer and the fritted glass are bonded.

16. The glass bonding material according to claim 1 , wherein
the fritted glass includes a first fritted glass and a second fritted glass,
the glass plates include a first glass plate and a second glass plate,
the cladding material includes a first parallel part provided in a region where the first layer and the first fritted glass are bonded and extending approximately parallel to a first bonding surface of the first glass plate to which the first fritted glass is bonded,
a second parallel part provided in a region where the first layer and the second fritted glass are bonded and extending approximately parallel to a second bonding surface of the second glass plate to which the second fritted glass is bonded, and
an inclined portion extending in an inclined state with respect to the first bonding surface and the second bonding surface so as to connect the first parallel part and the second parallel part.

17. A multilayer glass in which a plurality of glass plates are arranged with a gap therebetween and a periphery of the plurality of glass plates is bonded by a sealing part, wherein
the sealing part includes the glass bonding material according to claim 1 .

18. The multilayer glass according to claim 17 , wherein the gap is lowered in pressure.

Assignees

• Hitachi Metals Ltd

Inventors

• Yokota Masayuki
• Inoue Ryoji
• Tsuboi Yoshiharu
• Yamamoto Masaharu
• Fujiyoshi Masaru
• Tomita Naruaki
• Kawahara Kouji

Classifications

• C03C27/06 Primary

  Joining glass to glass by processes other than fusing (fusing C03B23/20; units for use as elements for closing wall or like openings and comprising two or more parallel glass panes in spaced relationship, the panes being permanently secured together E06B3/66) · CPC title

• B23K35/30 Primary

  with the principal constituent melting at less than 1550°C · CPC title

• C22C38/08

  containing nickel {(C22C38/105 takes precedence)} · CPC title

• B23K2103/54

  Glass · CPC title

• C22C30/00

  Alloys containing less than 50% by weight of each constituent · CPC title