JP2002167244A - Method of fabricating glass panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of fabricating a glass panel having the gap firmly sealed and keeping airtightness of interface between the sheet glass and a metallic material being hardly affected. SOLUTION: This method of fabricating a glass panel comprises forming a gap V between a pair of sheet glasses 1A and 1B facing the sheet surfaces to each other by having mediated a spacer, introducing a metallic material 3 in a melted state into a peripheral part V1 of the gap carried by an introduction piece 5 inserted in the gap, transferring the introduction piece along the periphery to spread the metallic material forming airtight seal of the gap, where the introduction piece is provided with contacting parts 7 to make contact with peripheral surfaces of both the sheet glasses and flowing parts 8 to introduce molten metallic material to the periphery both arranged along the direction crossing to the transferring direction of the introduction piece, and the introduction piece is transferred along the periphery while the contacting parts are rubbing the surface of both the sheet glasses in the presence of the metallic material in the melted state introduced via flowing parts to adhere the melted metallic material to the sheet surfaces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an introduction member in which a gap is formed by interposing a spacer between a pair of glass sheets whose sheet surfaces face each other, and a molten metal material is inserted into the gap. By moving the introduction member along the peripheral edge while introducing the peripheral part of the gap,
The present invention relates to a method for manufacturing a glass panel in which the gap is hermetically sealed with a metal material introduced into the peripheral portion.

[0002]

2. Description of the Related Art In the above-mentioned method of manufacturing a glass panel, a metal member in a molten state is introduced into a peripheral portion by an introduction member inserted into the gap portion, and the introduction member is moved along the peripheral portion to form a narrow gap portion. However, it is designed to be able to be hermetically sealed with a metal material introduced into the peripheral portion thereof. By inserting the molten metal material between the plate-like introduction member and the two glass sheets by inserting the plate-like introduction member and the two glass sheets along the surface, and moving the plate-like introduction member along the peripheral edge, the plate-like introduction A molten metal material is introduced between the two glass sheets after the member has passed.

[0003]

Since the glass sheet and the metal material are different materials having different bonding modes, they have a disadvantage that they are difficult to adhere to each other and that it is difficult to firmly seal the gap. Also,
The molten metal material that has entered between the plate-like introduction member and the plate glass is likely to generate a metal oxide on the surface that is not in contact with the plate-like introduction member nor the plate glass. Since the plate surface is moved along the peripheral edge portion along the plate surface of the plate glass, the surface of the molten metal material entering between the plate-like introduction member and the plate glass on the front end side in the movement direction of the metal material has a plate shape. With the movement of the shape introduction member, it moves along the peripheral edge while expanding so as to swell toward the plate glass side, and as a result, when a metal oxide is generated on the surface on the tip side in the movement direction, the metal oxide is However, there is a disadvantage that the air-tightness of the interface between the sheet glass and the metal material adhered to the sheet glass is easily impaired because it adheres to or stays near the sheet surface of the sheet glass. The present invention has been made in view of the above circumstances,
It is an object of the present invention to provide a method of manufacturing a glass panel which can tightly seal a gap portion and does not easily impair the airtightness of an interface between the sheet glass and a metal material.

[0004]

According to a first feature of the present invention, a gap is formed by interposing a spacer between a pair of glass sheets whose sheet surfaces are opposed to each other, and a molten metal material is formed. The introduction member is moved along the periphery while the introduction member is inserted into the periphery of the gap with the introduction member inserted into the gap, and the gap is hermetically sealed with the metal material introduced into the periphery. A method of manufacturing a glass panel which is sealed in the above, wherein the introduction member, a contact portion that comes into contact with the plate surface of both glass sheets facing the peripheral portion, the molten metal material in the peripheral portion A flow path portion for introduction is provided along a direction intersecting the moving direction of the introduction member, and the introduction member is moved along the peripheral edge portion while rubbing the contact portion against the plate surfaces of the both glass sheets. Then, the flow path portion Certain metal material in a molten state was introduced into section to the point to be adhered to the plate surface. [Function] In order to easily bond the sheet glass and the metal material having different bonding modes, the contact portion provided on the introduction member is rubbed against the sheet surfaces of both sheet glasses facing the peripheral edge in the presence of the molten metal material, and While activating the interface between the molten metal material and the molten metal material, the molten metal material introduced into the peripheral portion in the flow path portion can be bonded to the plate surface of the sheet glass. In addition, by rubbing the contact portion against the surface of the glass sheet, a metal oxide is generated on the surface of the molten metal material, and the metal oxide adheres to the glass surface of the glass sheet or stays near it. In this case, the introduction member is moved along the peripheral edge while removing part or all of the metal oxide, and the molten metal material introduced into the peripheral edge in the flow path is bonded to the plate surface. Can be done. Further, since the contact portion and the flow path portion are provided along the direction intersecting the moving direction of the introduction member, activation of the interface and elimination of the metal oxide are performed over a desired width, and the molten state is obtained. Can be adhered to the plate surface. [Effect] The surface of the molten metal material introduced into the peripheral portion while activating the interface between the glass sheet and the molten metal material over a desired width so that the glass sheet and the metal material are easily bonded to each other. Even if a metal oxide is generated, the metal material in the molten state can be bonded to the plate surface while removing a part or all of the metal oxide over a desired width. While being able to seal tightly,
It is difficult to impair the airtightness of the interface between the sheet glass and the metal material.

[0005] A feature of the invention according to claim 2 is that an introduction member provided with the flow path portion adjacent to the contact portion before and after in the moving direction is moved along the peripheral edge portion. . [Operation] The contact portion can be rubbed with good timing to the sheet surface of the sheet glass in the presence of the molten metal material introduced in the flow path section. [Effect] While activating the interface between the glass sheet and the metal material in the molten state, a part or all of the metal oxide that easily adheres to or stays near the sheet surface of the glass sheet is removed in a timely manner, and The metal material can be efficiently bonded to the surface of the glass sheet.

According to a third feature of the present invention, an introduction member having the contact portion and the flow path formed by bending a plate material in a direction intersecting the moving direction is provided on the peripheral edge portion. To move along. [Operation] An introduction member provided with a contact portion and a flow passage portion with a simple structure, and activates an interface and removes a metal oxide over a desired width, and transfers a metal material in a molten state to a plate surface. Can be adhered to. [Effect] Since an introductory member that can be easily manufactured at low cost can be used,
The manufacturing cost of the glass panel can be reduced.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] FIG. 1 shows a gap V formed by interposing a spacer 2 made of Inconel 718 between a pair of rectangular plate glasses 1A and 1B having plate surfaces facing each other and having substantially the same dimensions. A glass panel P in which a gap V1 is hermetically sealed with a solder 3 as a metal material filled in a peripheral portion V1 of the portion V over the entire periphery.

The above both glass sheets 1A and 1B have a thickness of about 3 m.
m transparent float plate glass, and the outer peripheral end face 4
A spacer 2 having a height of about 0.2 mm and a diameter of about 0.5 mm is interposed between both glass sheets 1A and 1B which are opposed to each other, and the gap V is reduced to 1.0 × 10 ^-2 Pa or less. Thus, a so-called vacuum insulated glass is formed.

A method for manufacturing the glass panel P will be described below. As shown in FIG. 2, two sheet glasses 1A and 1B are placed one above the other with their outer peripheral end surfaces 4 aligned with a spacer 2 arranged at an interval of about 20 mm therebetween. The strain point of each of the glass sheets 1A and 1B (the glass viscosity was 4 × 10 ¹⁴
poise temperature) is about 500 ° C.

Next, two sheet glass 1A,
1B is heated to about 180 ° C. in advance, and as shown in FIGS. 3 and 4, the solder 3 in a molten state is applied to the peripheral edge V1 of the gap V by the introduction member 5 inserted into the gap V. While introducing the solder 3 along the peripheral edge V1 to introduce the solder 3 over the entire periphery of the peripheral edge V1, then cool to room temperature, and form a through-hole formed in one plate glass 1A. Through which the gap V is sucked by a vacuum pump or the like,
The pressure in the gap V is reduced.

The solder 3 is composed of 90.85% Sn, Zn
Composed of 9.0% and 0.15% Ti (% by weight),
The liquidus temperature of the solder 3 (the temperature at which the metal becomes a complete liquid phase when heated from a low temperature side) is 215 ° C.

As shown in FIG. 5, the introduction member 5 is formed by a series of V-shaped cross sections along two directions perpendicular to the moving direction at two locations separated in the moving direction of a stainless steel plate having a thickness of 0.1 mm. The outer peripheral side of each bent portion is formed as a contact portion 7 that comes into contact with the plate surfaces 6 of the two glass sheets 1A and 1B facing the peripheral edge V1, and each concave surface is in a molten state. Is formed in the flow path portion 8 for introducing the solder 3 to the peripheral portion V1, and the flow path portion 8 is provided adjacent to the contact portion 7 before and after in the moving direction, and the solder 3 is electrically heated. Inside of the solder discharge tube 10 connected to the lower end of the melting tank 9 so that the molten solder 3 in the melting tank 9 to melt flows out of the melting tank 9 along its upper and lower surfaces by its own weight. Has been inserted.

Then, as shown in FIG. 6, the introduction member 5 is inserted into the gap V at an insertion depth of about 5 mm to
While rubbing each contact portion 7 against the plate surfaces 6 of both the glass sheets 1A and 1B in the presence of the molten solder 3 introduced in step 2, the introduction member 5 is moved together with the melting tank 9 along the peripheral edge V1.
The molten solder 3 is bonded to the plate surface 6 with a width of about 5 mm from the outer peripheral end surface 4.

[Second Embodiment] FIGS. 7 and 8 show an introduction member 5.
Of another embodiment of the present invention, a flat horizontal plate member 1 made of stainless steel
1 is fixed to the upper and lower surfaces of the vertical plate member 12 along a direction perpendicular to the moving direction, and the end of the vertical plate member 12 is attached to the peripheral portion V1.
The contact portions 7 are in contact with the plate surfaces 6 of the two glass sheets 1A and 1B facing each other.
Is formed in the flow path portion 8 for introducing the molten solder 3 to the peripheral portion V1. Other configurations are the same as those of the first embodiment.

[Third Embodiment] FIG. 9 shows another embodiment of the introduction member 5, in which the disk 13 is formed at a plurality of positions in the circumferential direction along the radial direction and radially in a wavy shape having a V-shaped cross section. The outer peripheral side of each bent portion is bent to form a contact portion 7 which comes into contact with the plate surfaces 6 of the two glass sheets 1A, 1B facing the peripheral portion V1, and each concave surface is formed by melting the solder 3 in a molten state. An introduction member 5 formed in a flow path portion 8 for introduction into the portion V1 is formed. As shown in FIGS. 10 and 11, a part of the introduction member 5 projects outside the solder discharge cylinder 10. Thus, it is rotatably supported on the inside of the solder discharge tube 10 around the vertical axis.

Then, the protruding portion of the introduction member 5 from the solder discharge tube 10 is inserted into the gap V, and the introduction member 5 is driven and rotated by the motor 14 so that the contact portion 7 is brought into contact with the two glass plates 1A,
While rubbing against the plate surface 6 of 1B, the introduction member 5 is moved along the peripheral edge V1 together with the melting tank 9 so that the molten solder 3 introduced in the flow path portion 8 adheres to the plate surface 6. is there. Other configurations are the same as those of the first embodiment.

[Fourth Embodiment] FIGS. 12 and 13 show another embodiment of the introduction member 5, in which a stainless steel plate is moved along a direction perpendicular to the moving direction so that a top and a bottom have a plate glass 1A. 1B is bent in a flat mountain-like wavy shape along the surface 6 of the sheet glass 1B. The contact portion 7 is in contact with the surface 6 of the sheet glass 1A, 1B with the flat surfaces of the top and bottom facing the peripheral edge V1. The solder 3 is formed and the respective concave surfaces are melted.
Is formed in a flow path portion 8 for introducing into the peripheral portion V1, and a flat surface of each contact portion 7 is rubbed against the plate surface 6 of both the glass plates 1A and 1B, and the solder 3 in a molten state with the glass plates 1A and 1B. Interface can be effectively activated.
Other configurations are the same as those of the first embodiment.

[Fifth Embodiment] FIGS. 14 and 15 show another embodiment of the introduction member 5, in which a stainless steel plate is moved along a direction orthogonal to the moving direction in the same manner as shown in the fourth embodiment. And the top and bottom are the plate surfaces 6 of the glass sheets 1A, 1B.
Along with a flat chevron-shaped wave, and a strip-shaped plate material 15 is adhered to the inside of each top and each bottom along a direction orthogonal to the moving direction, and the flat surface of each top and each bottom and The plate surface of each plate member 15 is formed as a contact portion 7 that comes into contact with the plate surface 6 of both plate glasses 1A and 1B facing the peripheral edge portion V1, and the gap between the top and the plate member 15 adjacent in the moving direction, the bottom, and the plate member 15 are formed in a flow path portion 8 for introducing the molten solder 3 to the peripheral edge portion V1, and the flat glass portions 1A, 1B and the molten solder 3 are formed by a number of flat contact portions 7. Interface can be effectively activated.
Other configurations are the same as those of the first embodiment.

[Other Embodiments] The method for manufacturing a glass panel according to the present invention may use an introduction member that is provided intermittently in the direction intersecting the contact portion and the flow path portion in the moving direction. 2. In the method for manufacturing a glass panel according to the present invention, a sheet glass having a metal oxide film or a metal film formed on the surface may be used. 3. The method for manufacturing a glass panel according to the present invention may be used for manufacturing a glass panel in which the outer peripheral end face of one of the pair of glass sheets is protruded from the outer peripheral end face of the other glass sheet. 4. The method for manufacturing a glass panel according to the present invention is characterized in that, in an atmosphere of an inert gas, a metal material in a molten state is introduced into a peripheral portion of the gap with an introducing member inserted into the gap, and the introducing member is moved around the peripheral portion of the gap. You may move along a part. 5. The method for manufacturing a glass panel according to the present invention can be used for manufacturing a glass panel for a variety of uses, for example, for construction and vehicles (automobile window glass, railway vehicle window glass, ship window glass). -It can be used for manufacturing glass panels used for device elements (surface glass of plasma displays, doors and walls of refrigerators, doors and walls of heat retaining devices) and the like. Further, the glass panel is not limited to the one in which the gap between the two glass plates is reduced to a reduced pressure of 1.0 × 10 ⁻² Pa or less as described in the above embodiment, and the degree of reduced pressure itself is arbitrarily set. It is possible to Further, the pressure may be equal to the atmospheric pressure. 6. The method for manufacturing a glass panel according to the present invention is not limited to the method using the glass plate having a thickness of 3 mm described in the above embodiment, and a glass plate having another thickness may be used. Further, a glass panel may be manufactured by combining one sheet glass and another sheet glass having different thickness dimensions. In addition, the type of glass can be arbitrarily selected. For example, template glass, ground glass (glass having a function of diffusing light by surface treatment), meshed glass, or tempered glass, or heat ray absorbing / ultraviolet light It may be a sheet glass provided with functions such as absorption and heat ray reflection, or a combination thereof. For the composition of the glass,
Soda silicate glass (soda lime silica glass), borosilicate glass, aluminosilicate glass, and various crystallized glasses may be used. 7. The manufacturing method of the glass panel according to the present invention is not limited to the method using the Inconel 718 spacer described in the above embodiment. Alternatively, a spacer made of glass, low-melting glass, or the like may be used. 8. The method for manufacturing a glass panel according to the present invention includes, as a metal material, for example, any one of tin, bismuth, lead, zinc, indium, antimony, and the like, or a material mainly containing two or more of silver, aluminum, Any kind of copper, etc.,
Alternatively, a metal material to which two or more kinds are added may be used. When the ratio of Zn to the total of Sn and Zn is 8 to 10
%, Most preferably containing Ti and substantially not including Cu.

[Brief description of the drawings]

FIG. 1 is a sectional view of a glass panel.

FIG. 2 is a cross-sectional view of a main part explaining a method for manufacturing a glass panel.

FIG. 3 is a cross-sectional view of a principal part explaining a method for manufacturing a glass panel.

FIG. 4 is a partially cutaway plan view illustrating a method for manufacturing a glass panel of a glass panel.

FIG. 5 is a perspective view of a main part.

FIG. 6 is an essential part cross sectional view for explaining the method for manufacturing a glass panel.

FIG. 7 is a perspective view of a main part illustrating a method for manufacturing a glass panel of a second embodiment.

FIG. 8 is an essential part cross sectional view for explaining the method for manufacturing a glass panel of the second embodiment.

FIG. 9 is a perspective view of a main part illustrating a method for manufacturing a glass panel according to a third embodiment.

FIG. 10 is an essential part cross sectional view for explaining the glass panel manufacturing method of the third embodiment;

FIG. 11 is a partially cutaway plan view illustrating a method for manufacturing a glass panel of a third embodiment.

FIG. 12 is a perspective view of a main part illustrating a method for manufacturing a glass panel of a fourth embodiment.

FIG. 13 is an essential part cross sectional view for explaining the method for manufacturing a glass panel of the fourth embodiment.

FIG. 14 is a perspective view of a main part illustrating a method for manufacturing a glass panel of a fifth embodiment.

FIG. 15 is an essential part cross sectional view for explaining the glass panel manufacturing method of the fifth embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A Sheet glass 1B Sheet glass 2 Spacer 3 Metal material 5 Introduction member 6 Plate surface 7 Contact part 8 Flow path part V Gap part V1 Peripheral part

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shigeki Nakagaki 3-5-11 Doshomachi, Chuo-ku, Osaka-shi, Osaka F-term in Nippon Sheet Glass Co., Ltd. 4G061 AA20 BA01 CB02 CB14 CD02 CD22 CD25 DA42

Claims (3)

[Claims] 1. A gap is formed by interposing a spacer between a pair of glass sheets whose sheet surfaces are opposed to each other, and an introduction member in which a molten metal material is inserted into the gap is provided. A method of manufacturing a glass panel in which the introduction member is moved along the peripheral portion while being introduced into the peripheral portion, and the gap is hermetically sealed with the metal material introduced into the peripheral portion, The introduction member has a contact portion that contacts the sheet surface of the two glass sheets facing the peripheral portion, and a flow path portion for introducing the molten metal material to the peripheral portion. Provided along the direction intersecting the direction, while rubbing the contact portion against the plate surface of the both glass sheets,
A method for manufacturing a glass panel, in which the introduction member is moved along the peripheral portion, and the molten metal material introduced into the peripheral portion in the flow path portion is bonded to the plate surface. 2. The method of manufacturing a glass panel according to claim 1, wherein an introduction member provided with the flow passage portion adjacent to the contact portion in the movement direction before and after the contact portion is moved along the peripheral edge portion. 3. The introduction member, wherein the plate member is bent along a direction intersecting the moving direction to move the introduction member forming the contact portion and the flow path portion along the peripheral edge portion. A method for producing the glass panel as described above.