CN103687824A - Plate glass, manufacturing method therefor, and device for manufacturing said plate glass - Google Patents
Plate glass, manufacturing method therefor, and device for manufacturing said plate glass Download PDFInfo
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- CN103687824A CN103687824A CN201280035544.0A CN201280035544A CN103687824A CN 103687824 A CN103687824 A CN 103687824A CN 201280035544 A CN201280035544 A CN 201280035544A CN 103687824 A CN103687824 A CN 103687824A
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- Prior art keywords
- sheet glass
- fusing
- laser
- flow
- air
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/04—Annealing glass products in a continuous way
- C03B25/06—Annealing glass products in a continuous way with horizontal displacement of the glass products
- C03B25/08—Annealing glass products in a continuous way with horizontal displacement of the glass products of glass sheets
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/08—Severing cooled glass by fusing, i.e. by melting through the glass
- C03B33/082—Severing cooled glass by fusing, i.e. by melting through the glass using a focussed radiation beam, e.g. laser
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
Abstract
[Solution] Provided is plate glass (10) that has a side surface (12) cut by melting the glass with laser light. At a minimum, the edge (14) where said laser-cut side surface (12) intersects one principal surface (13) of the plate glass (10) and the edge (16) where the laser-cut side surface (12) intersects the other principal surface (15) of the plate glass (10) are rounded. The radius of curvature (r) of said edges (14, 16) at given points and the thickness (t) of the center of the plate glass (10) satisfy the relation: r is not less than t/3 and not greater than 2t/3. A phase-contrast microscope or an electron microscope can be used to determine whether or not the side surface of the plate glass (10) was cut by melting the glass.
Description
Technical field
The present invention relates to the manufacture method of sheet glass, sheet glass and the manufacturing installation of sheet glass.
Background technology
As the method for cutting off sheet glass and produce sheet glass, known have a kind of method: form the line of rabbet joint on the surface at sheet glass with cutting knife after, apply stress in bending to cut off sheet glass along the line of rabbet joint.By cut off the sheet glass that obtains after in order to improve shock resistance, across corner is carried out chamfered, be supplied to subsequent handling.
As chamfering method, the general method that adopts use grinding stone, but when chamfered being carried out in the bight of sheet glass with grinding stone, on fillet surface, can form trickle crack.This trickle crack can cause the reduction of flexural strength.
Therefore, in recent years, proposed with laser, the bight of sheet glass to be carried out the tempering polishing method (for example, with reference to patent documentation 1) of chamfered.In tempering polishing method, by with laser, its melting being heated to make in the bight of sheet glass, thereby carry out chamfered.
Prior art document
Patent documentation
Patent documentation 1: No. 3823108 communique of Japanese Patent Laid
Summary of the invention
Invent technical problem to be solved
At present, when cutting off respectively the operation of sheet glass and to by cutting off the bight of the sheet glass obtaining while carrying out the chamfering process of chamfered, efficiency is poor, and the manufacturing cost of sheet glass raises.
Therefore, consideration is carried out local heating so that its fusing with laser to sheet glass, but glass does not have clear and definite fusing point, there is the character reducing gradually along with temperature rising viscosity, therefore, sometimes the part after heating softening and because of gravity sagging towards below, thereby be difficult to obtain the chamfer shape of expectation.
The present invention does in view of above-mentioned technical problem, and its object is to provide that a kind of manufacturing cost is lower, shock resistance and sheet glass profile excellence, that have intended shape, and the manufacture method and the manufacturing installation that are suitable for this sheet glass.
The technical scheme that technical solution problem adopts
For achieving the above object, the invention provides a kind of sheet glass, this sheet glass has the fusing face forming by irradiating laser in side, the fusing face of above-mentioned sheet glass at least has the shape with fillet with the crossing corner portion of a major surfaces of above-mentioned sheet glass and with the crossing corner portion of another major surfaces of above-mentioned sheet glass 10, when the radius-of-curvature of the optional position of each corner portion is made as to r, and when the thickness of slab of the central part of above-mentioned sheet glass is made as to t, meet the formula of 1/3 * t≤r≤2/3 * t.
In addition, the invention provides a kind of manufacture method of sheet glass, this manufacture method has fusing operation, in this fusing operation, the irradiation position of laser and the position that blows out of air-flow on the surface of flat sheet glass are moved, so that above-mentioned sheet glass is fused, above-mentioned fusing operation is to be two portions by above-mentioned sheet glass fusing, and at least two corner portions located in a side or two sides' fusing face are not formed to the operation with the shape of fillet, comprising in the surperficial plane of above-mentioned sheet glass, above-mentioned laser forms wire along travel direction, when the length along above-mentioned travel direction is made as to L, and when width is made as to W, meet the formula of 10≤L/W≤60.
In addition, the invention provides a kind of manufacturing installation of sheet glass, this manufacturing installation has the device for fusing of above-mentioned sheet glass, and above-mentioned device for fusing has: supporting mass, and this supporting mass supports flat sheet glass; LASER Light Source, this LASER Light Source irradiates laser; Nozzle, this nozzle ejection goes out air-flow; Running gear, this running gear moves the irradiation position of laser lip-deep, that irradiate from above-mentioned LASER Light Source of the sheet glass that supported by above-mentioned supporting mass and the position that blows out of the air-flow that ejects from said nozzle; And control device, this control device is controlled running gear, above-mentioned device for fusing is to be two parts by above-mentioned sheet glass fusing, and at least two corner portions located in a side or two sides' fusing face are not formed to the device with the shape of fillet, comprising that in the surperficial plane of above-mentioned sheet glass, above-mentioned laser forms wire along travel direction, when the length along above-mentioned travel direction is made as to L, and when width is made as to W, meet the formula of 10≤L/W≤60.
Invention effect
According to the present invention, can provide that a kind of manufacturing cost is lower, shock resistance and sheet glass profile excellence, that there is intended shape.In addition, can also provide manufacture method and the manufacturing installation that is suitable for this sheet glass.
Accompanying drawing explanation
Fig. 1 is the figure while observing the sheet glass of an embodiment of the present invention from the bearing of trend of fusing face.
Fig. 2 is the phase contrast microscope photo while observing the sheet glass of an embodiment of the present invention from the bearing of trend of fusing face.
Fig. 3 is the electron micrograph while observing the sheet glass of an embodiment of the present invention from the bearing of trend of fusing face.
Fig. 4 means the figure of the variation of Fig. 1.
Fig. 5 is the side-view that the manufacturing installation partial cut of the sheet glass of an embodiment of the present invention is represented.
Fig. 6 amplifies by the major portion of the device for fusing of an embodiment of the present invention the side-view representing.
Fig. 7 amplifies by the major portion of the device for fusing of an embodiment of the present invention the front view representing.
Fig. 8 amplifies by the major portion of the device for fusing of an embodiment of the present invention the vertical view representing, it means that laser and air-flow are at the vertical view that comprises the position relationship in the surperficial plane of sheet glass.
Fig. 9 is the explanatory view of fusing process that becomes the part of product after the fusing of an embodiment of the present invention.
Figure 10 is the explanatory view of impact strength test machine.
Embodiment
Below, with reference to accompanying drawing, embodiments of the present invention are described.In each accompanying drawing, for the identical or corresponding symbol of identical or corresponding structure mark, and description thereof is omitted.
(sheet glass)
Fig. 1 is the figure while observing the sheet glass of an embodiment of the present invention from the bearing of trend of fusing face.As shown in Figure 1, sheet glass 10 has the fusing face 12 that the irradiation by laser forms in side.In addition, whether the side of sheet glass 10 is that fusing face can be judged with phase contrast microscope, electron microscope.
Fig. 2 is the phase contrast microscope photo while observing the sheet glass of an embodiment of the present invention from the bearing of trend of fusing face.As shown in Figure 2, near the part 13 fusing face 12 of sheet glass 10 has the specific refractory power different from its peripheral part 14, can not see clearly the light and shade striped of directing light and diffraction light.On the other hand, in the tempering polishing method by the past (fire polish method), carry out the part of chamfered, can see clearly the light and shade striped of directing light and diffraction light.
Fig. 3 is the electron micrograph while observing the sheet glass of an embodiment of the present invention from the bearing of trend of fusing face.As shown in Figure 3, near the part 13 fusing face 12 of sheet glass 10 has the reflectivity different from its peripheral part 14, compares with its peripheral part 14, and volatile component is more than the low 1 quality % of the amount of B2O3.On the other hand, in the past, carried out the part of chamfered by grinding stone, the amount of B2O3 reduces hardly.
The fusing face 12 of sheet glass 10 at least has the shape with fillet with the crossing corner portion 16 of a major surfaces 15 of sheet glass 10 and with the crossing corner portion 18 of another major surfaces 17 of sheet glass 10.Herein, " major surfaces " of sheet glass refers to so-called surface and the back side, " with the shape of fillet " refers to so-called rounded shapes, it is the curved surface shape that is convex in the cross section vertical with major surfaces towards outside, except have the circular arc of single radius-of-curvature planar, also comprise that the arc surfaced, the elliptic arc that a plurality of arc surfaces with different curvature radius, consist of are planar etc.The fusing face 12 of sheet glass 10 both can whole form the curved surface shape that is convex, also can have plane in a part.
Like this, in the side of sheet glass 10, with the part of the shape of fillet, by fusing, form, therefore, compare with situation about forming by mechanicalness polishing as prior art, shock resistance is excellent, can make S/t described later larger than 0.043J/mm.
When the radius-of-curvature of the optional position of each corner portion 16,18 of the fusing face of sheet glass 10 12 is made as to r, and when the thickness of slab of the central part of sheet glass 10 is made as to t, meet the formula of 1/3 * t≤r≤2/3 * t.In addition, herein, the central part of glass refers to by fusing the part that is not subject to fusing impact beyond the outer edge of melting again, and its thickness of slab is roughly uniform.Radius-of-curvature r is the radius-of-curvature while observing from the bearing of trend of fusing face.
Like this, in the present embodiment, the shape that at least two the corner portions 16,18 in fusing face 12 form with fillet, meets above-mentioned formula, and therefore, shock resistance, profile excellence, without the periphery of sheet glass 10 is carried out to chamfered.Thus, can cut down manufacturing cost.
For example, the fusing face 12 of sheet glass 10 is arc surface.The radius-of-curvature of the fusing face 12 that circular arc is planar is not specially limited, but half of the thickness of slab of the central part of sheet glass 10 preferably, r=0.5 * t is comparatively desirable.In this case, fusing face 12 is in the cross section vertical with major surfaces, towards outside, to be the circular-arc of convex.When the direction from major surfaces quadrature is observed, the thickness of slab direction central part of fusing face 12 is more side-prominent more outwardly than thickness of slab direction both ends.
Like this, when fusing face 12 is while having the arc surface of single radius-of-curvature, for the impact of all directions, can improve shock resistance.
With respect to the central part of sheet glass 10, the overhang H in thickness of slab direction is below 0.1mm to the fusing face 12 of sheet glass 10.Overhang H is the initial sag of chain of lower surface (being positioned at the major surfaces of downside) from the sheet glass 10 of horizontal arrangement in when fusing.By overhang H (with reference to Fig. 1) is made as below 0.1mm, when making sheet glass 10 load in supporting station etc., can alleviate the stress concentration at 16,18 places, the corner of sheet glass 10, thereby can suppress the breakage of sheet glass 10.
The thickness of slab t of the central part of sheet glass 10 because the purposes of sheet glass 10 is different, for example, is 0.05～1.0mm.When thickness of slab t surpasses 1.0mm, be difficult to fusing.In addition, when thickness of slab t is during lower than 0.05mm, be difficult to carrying.
The purposes of sheet glass 10 is not specially limited, such as the indicating meter that can be used for showing the images such as static picture, dynamic picture.Indicating meter comprises flat-panel monitor, the touch control displays such as liquid-crystal display (LCD), plasma display (PDP), organic electro-luminescent display (OLED).Sheet glass 10 is for example as supplying the glass substrate of display device setting, the cover glass of the front surface of protection indicating meter.
The glass types that forms sheet glass 10 is to be selected out according to the purposes of sheet glass 10.In the situation that glass substrate, the cover glass for example used as PDP, sheet glass 10 consists of soda-lime glass.On the other hand, in the situation that the glass substrate of using as LCD, sheet glass 10 consists of the non-alkali glass that does not comprise in fact alkali metal.
As non-alkali glass, for example, can exemplify out by the mass percent of oxide compound benchmark and represent to contain SiO
2: 50～66%, Al
2o
3: 10.5～24%, B
2o
3: 0～12%, MgO:0～8%, CaO:0～14.5%, SrO:0～24%, BaO:0～13.5%, MgO+CaO+SrO+BaO:9～29.5%, ZrO
2: 0～5% non-alkali glass, comparatively it is desirable to, by the mass percent of oxide compound benchmark, represent to contain SiO
2: 58～66%, Al
2o
3: 15～22%, B
2o
3: 5～12%, the non-alkali glass of MgO:0～8%, CaO:0～9%, SrO:3～12.5%, BaO:0～2%, MgO+CaO+SrO+BaO:9～18%, in addition, comparatively it is desirable to, by the mass percent of oxide compound benchmark, represent to contain SiO
2: 50～61.5%, Al
2o
3: 10.5～18%, B
2o
3: 7～10%, the non-alkali glass of MgO:2～5%, CaO:0～14.5%, SrO:0～24%, BaO:0～13.5%, MgO+CaO+SrO+BaO:16～29.5%.MgO, CaO, SrO, BaO are any compositions.The chemical constitution of these glass can utilize fluorescent x-ray analysis apparatus to be measured.
In addition, in the present embodiment, fusing face 12 is made as to arc surface, but the present invention is not limited thereto.For example, the fusing face 22 of the sheet glass shown in Fig. 4 20 consists of curved surface and plane.In a word, as long as at least two corner portions in fusing face form the shape with fillet.
(manufacturing installation of sheet glass)
Fig. 5 is the side-view that the manufacturing installation partial cut of the sheet glass of an embodiment of the present invention is represented.As shown in Figure 5, the manufacturing installation 100 of sheet glass has thermal treatment unit 200, device for fusing 300, annealing device 400.
In addition, show the example that is become product by an only side of the sheet glass 30 after fusing herein, as long as but sheet glass 30 is divided into two parts, and two sides' part can be also the part that becomes product.
For example, heat treatment furnace 210 can be also the continuous tunnel furnace of continous way as shown in Figure 5.For the not restriction of temperature distribution of the inside of continuous tunnel furnace, for example can be set as along with from entrance towards outlet, temperature reduces gradually, also can be set as temperature and raise gradually towards inside from entrance, temperature reduces gradually from inside towards outlet.
As shown in Figure 5, in the inside of heat treatment furnace 210, be provided with the carrying roller 220 from entrance towards the horizontal moving glass plate 30 of outlet.Carrying roller 220 is a plurality of across being interval with in prescribed direction, by electric motor etc., driven and the driving roll of rotation respectively, and in prescribed direction moving glass plate 30.In addition, part carrying roller 220 can be also driven roll.
As long as the building mortion that melten glass is configured as to band plate-like is adjacent with the inlet side of heat treatment furnace 210.As building mortion, there are so-called float forming device, melt-shaping device etc.Float forming device is that the melten glass that makes to be supplied to continuously in the molten tin in float glass process path flows in molten tin, and is configured as the device of band plate-like.Melt-shaping device is melten glass to be supplied to cross section is the inside of the groove of V word shape roughly continuously and the molten tin that makes to be spilled over to the left and right sides from groove becomes the device of band plate-like at the lower edge interflow of groove.The sheet glass of the band plate-like being shaped in building mortion is moved in heat treatment furnace 210.
Device for fusing 300 is specified dimension by sheet glass 30 fusing.For example, device for fusing 300 fuses the side edge part of the sheet glass of the band plate-like being shaped in building mortion 30 (so-called ear).Part except ear becomes product.By this, can obtain the sheet glass identical with the sheet glass 10 shown in Fig. 1.
Device for fusing 300 utilizes the 312 pairs of sheet glass of laser 30 that penetrate from LASER Light Source 310 to carry out local heating, and utilizes the air-flow (assist gas) 322 ejecting from nozzle 320 to blow the part flying because of heating melting, so that sheet glass 30 is fused.
Device for fusing 300 has the carrying roller 330 towards prescribed direction carrying by sheet glass 30.Carrying roller 330 has the structure identical with the carrying roller 220 of inside of being located at heat treatment furnace 210.In addition, the detailed structure of device for fusing 300 can illustrate in the back.
Example as shown in Figure 1, is provided with the carrying roller 420 from entrance towards outlet moving glass plate 40 in the inside of annealing furnace 410.Carrying roller 420 has the structure identical with the carrying roller 220 of inside of being located at heat treatment furnace 210.
In addition, in the present embodiment, the manufacturing installation 100 of sheet glass has thermal treatment unit 200, device for fusing 300 and annealing device 400, as long as but there is device for fusing 300, also can not there is thermal treatment unit 200, annealing device 400.
(detailed structure of device for fusing)
Fig. 6 amplifies by the major portion of the device for fusing of an embodiment of the present invention the side-view representing.Fig. 7 amplifies by the major portion of the device for fusing of an embodiment of the present invention the front view representing.Fig. 8 amplifies by the major portion of the device for fusing of an embodiment of the present invention the vertical view representing, it means that laser and air-flow are at the vertical view that comprises the position relationship in the surperficial plane of sheet glass.
Device for fusing 300 has: the supporting mass that flat sheet glass 30 is supported (for example not shown in the carrying roller 330 of Fig. 5, Fig. 6～Fig. 8); Penetrate the LASER Light Source 310 of laser 312; Laser is carried out to the optical system 360 of focus control; Make laser 312 irradiation position, air-flow 322 blow out the running gear 340 moving position; The control device 350 being formed by computer etc.; And the nozzle 320 that ejects air-flow (assist gas) 322.Device for fusing 300 utilizes the 312 pairs of sheet glass of laser 30 that penetrate from LASER Light Source 310 to carry out local heating, and utilizes the air-flow 322 ejecting from nozzle 320 to blow the part flying because of heating melting, thereby by sheet glass 30 fusing.
Device for fusing 300 makes to be supported the position that blows out of the irradiation position of the laser 312 on the surface 32 of sheet glass 30 of body supporting and air-flow 322 and moves with by sheet glass 30 fusing.The irradiation position of the laser 312 on the surface 32 of sheet glass 30 and the movement that blows out position of air-flow 322 both can be undertaken by the movement of sheet glass 30, also can be undertaken by the movement of LASER Light Source 310 and nozzle 320, can also be undertaken by two sides' movement.
Supporting mass supports sheet glass 30, for example supporting glass plate 30 flatly.Supporting mass for example both can form by a plurality of carrying rollers 330 as shown in Figure 5, also can consist of tabular worktable, air table etc., unrestricted to its structure.
As shown in Figure 5, supporting mass is the fusing position of supporting glass plate 30 not, so that air-flow 322 can pass sheet glass 30.That is, below the fusing position of sheet glass 30, with air-flow 322, can dispose space through the mode of sheet glass 30.
As LASER Light Source 310, for example, can exemplify out CO2 laser apparatus (wavelength 10600nm), semiconductor laser (wavelength 808nm, 940nm, 975nm), optical fiber laser (wavelength: 1064nm, 1070nm), Nd:YAG laser apparatus (wavelength: 213nm, 266nm, 355nm, 532nm, 1064nm), KrF excimer laser (wavelength: 248nm), ArF excimer laser (wavelength: 193nm), F
2laser apparatus (wavelength: 157nm), Kr
2laser apparatus (wavelength: 146nm), Ar
2laser apparatus (wavelength: 126nm) etc.Wherein, glass is heated and the CO of easy absorbing laser 312
2laser apparatus is comparatively desirable.
Between LASER Light Source 310 and sheet glass 30, be provided with the optical system 360 (with reference to Fig. 5) that laser 312 is imaged in to the surface 32 of sheet glass 30.Optical system 360 for example consists of mirror 362 and lens 364.
In addition, in the present embodiment, for the cross-sectional shape of laser 312 being made as to ellipticity or rectangle etc., thering is the wire of high-aspect-ratio and use cylindrical lens, but the present invention is not limited thereto.For example, also can use cover.Cover consists of the thin plate with the through hole passing through for laser 312, can limit according to the shape of through hole the cross-sectional shape of laser 312.
As shown in Figure 8, nozzle 320 be disposed at after fusing, become the part of product 40 above, towards the fusing position angular injection of sheet glass 30, go out air-flow 322.Nozzle 320 is the top of the configurable fusing position in sheet glass 30 also.
As shown in Figure 8, comparatively it is desirable to, nozzle 320 is configured to from the width outside of laser 312 or the fusing position towards sheet glass 30 blows out air-flow 322 from the travel direction front side of laser 312.
It is comparatively desirable that the angle α (with reference to Fig. 7) that the medullary ray of nozzle 320 becomes with the direction of surface 32 quadratures with sheet glass 30 is 0～35 °.
By the direction projection of surface 32 quadratures of the medullary ray edge of nozzle 320 and sheet glass 30, to the angle β (with reference to Fig. 8) that the position direction parallel with travel direction become of blowing out of the line of surface 32 rear formation of sheet glass 30 and the air-flow 322 on the surface 32 of sheet glass 30, to be 0～90 ° be comparatively desirable (yet, α > 0).
The outlet of nozzle 320 is not limited to this shape, for example, also can form round shape, and the exit diameter of nozzle 320 (diameter) comparatively it is desirable to 1～3mm, more preferably 1～2mm.By the exit diameter of nozzle 320 is made as to above-mentioned scope, can make the flow of air-flow 322 and blast suitable.The flow of air-flow 322 comparatively it is desirable to 10～30L/min, more preferably 15～20L/min.
The temperature out of nozzle 320 comparatively it is desirable to room temperature～800 ℃, more preferably 600～800 ℃.The temperature out of nozzle 320 is higher, and the temperature of air-flow 322 is just higher, therefore, can cut down the output of LASER Light Source 310.
The viewpoints such as directive property from air-flow 322, comparatively it is desirable to, and the distance between the outlet of nozzle 320 and the surface 32 of sheet glass 30 is 1～5mm.
In addition, the running gear 340 of present embodiment drives supporting mass so that sheet glass 30 moves, but the present invention is not limited thereto.For example, both can make the processing head that is equiped with LASER Light Source 310 and nozzle 320 move, and also can make sheet glass 30 and these two members of processing head move.
Fig. 9 becomes the explanatory view of the part of product after the fusing of an embodiment of the present invention.
Device for fusing 300 is two parts by sheet glass 30 fusing, and the shape that at least two the corner portions 47,48 in the fusing face 42 of (becoming the part 40 of product after fusing) are formed respectively with fillet.Corner portion 47 is and a part that major surfaces 45 is crossing of part 40 that corner portion 48 is parts crossing with another major surfaces 46 of part 40.In addition, do not become in the part 50 of product after fusing, the shape of fusing face 52 (with reference to Fig. 8) is also unrestricted, can be both the shape identical with fusing face 42, can be also the shape different from fusing face 42.
As shown in Figure 8, in the plane on surface 32 that comprises sheet glass 30, laser 312 forms wire along travel direction (arrow A direction), for example, form linearity.
Herein, " plane that comprises the surface 32 of sheet glass 30 " refers to the surface 32 by LASER Light Source 310 1 sides (and nozzle 320 1 sides) of sheet glass 30 and the elongated surfaces on this surface 32.Elongated surfaces is set in outside and the inner side of sheet glass 30, for example, be also set in the gap forming by fusing between the part 50 that becomes the part of product 40 and do not become product.
In addition, in the plane on surface 32 that comprises sheet glass 30, laser 312 forms the wire that comprises linearity part and/or curve-like part.
In the plane on surface 32 that comprises sheet glass 30, when laser 312 is made as to L (with reference to Fig. 8) along the length of the travel direction length of fusing preset lines (along), and when width is made as to W (with reference to Fig. 8), meet the formula of 10≤L/W≤60.More preferably scope is 10≤L/W≤40, and desirable especially scope is 10≤L/W≤20.By L/W is made as more than 10, can not only to sheet glass 10, fully heat in the place ahead that blows out position of air-flow 322 so that it is softening, can also be at the fusing face 42 of the part that becomes product 40 of the rear long-time heating sheet glass 10 that blows out position of air-flow 322.Thus, as shown in Figure 9, can guarantee that fusing face 42 forms with the time till the shape of fillet because of surface tension.Thus, can obtain the sheet glass of shock resistance, profile excellence.In addition, by L/M is made as below 60, can improve the energy density of laser 312, with fully softening heated part.
L comparatively it is desirable to 4～20mm, and more preferably 4～12mm, further it is desirable to 4～6mm.By L is made as to 4～20mm, can make become suitable the heat-up time of the output of LASER Light Source 310 and the part of fusing.When L than 4mm in short-term, the heat-up time of the part of fusing is very few.
L is shorter than the length of the fusing preset lines on the surface of sheet glass 30 32.
W comparatively it is desirable to 0.2～1.0mm, and more preferably 0.2～0.6mm, further it is desirable to 0.2～0.4mm.By W is made as below 1.0mm, the output of the LASER Light Source in the time of preventing from fusing is excessive.When W is during lower than 0.2mm, be difficult to the irradiation position of laser 312 and air-flow 322 to blow out position contraposition.
As shown in Figure 8, W is set to than becoming the part 40 of product and do not becoming the gap forming by fusing between the part 50 of product large, with the fusing face 42 that can utilize 312 pairs of laser to become the part 40 of product, heats.
In the plane on surface 32 that comprises sheet glass 30, when the distance between travel direction (arrow A direction) overdraught 322 center 326 and laser 312 center 316 is made as to X (with reference to Fig. 8), the formula that meets-0.25 * L < X < 0.20 * L is comparatively desirable.Herein, when air-flow 322 center 326 is positioned at than laser 312 center 316 more by the position in travel direction the place ahead, by X be made as on the occasion of, when air-flow 322 center 326 is positioned at than laser 312 center 316 more by the position at travel direction rear, X is made as to negative value.
By meeting the formula of-0.25 * L < X < 0.20 * L, can will under the fully softening state of glass, utilize air-flow 322 to cut off, and can after cutting off, fully guarantee that part after softening becomes the time till circle because of surface tension.More preferably scope is-0.15 * L < X <, 0.15 * L, and desirable especially scope is-0.1 * L < X <, 0.1 * L.
Herein, comprising that air-flow 322 in the plane on surface 32 of sheet glass 30 refers to projects to by the medullary ray of the outlet of nozzle 320 and nozzle 320 air-flow forming in the plane on the surface 32 that comprises sheet glass 30 abreast.
In the plane on surface 32 that comprises sheet glass 30, when the distance between mobile route overdraught 322 center 326 and laser 312 center 316 is made as to Y (with reference to Fig. 8), the formula that meets 0≤Y is comparatively desirable.Herein, Y is the distance in the direction vertical with above-mentioned mobile route, when air-flow 322 center 326 is moved towards the product lateral deviations in the both sides of above-mentioned mobile route, by Y be made as on the occasion of, when the contrary lateral deviation of present dynasty is moved, Y is made as to negative value.By meeting the formula of 0≤Y, can obtain the fusing face of excellent in shape.In order to improve this effect, comparatively it is desirable to, become product part 40 above configure nozzle 320, the fusing position angular injection from nozzle 320 towards sheet glass 30 goes out air-flow 322.
Y (with reference to Fig. 8) comparatively it is desirable to 0～1.5mm, and more preferably 0～1.0mm, further it is desirable to 0～0.5mm.When Y surpasses 1.5mm, on the surface 32 of sheet glass 30, the overlapping region of laser 312 and air-flow 322 is too small, therefore, and fusing deterioration of efficiency.
Move to meet the mode of above-mentioned position relationship in the plane on surface 32 that comprises sheet glass 30 linkedly with air-flow 322 center 326 at laser 312 center 316.Its translational speed comparatively it is desirable to 10～200mm/sec, and more preferably 10～100mm/sec, further it is desirable to 20～60mm/sec.In addition, its motion track can be both linearity, can be also curve-like.
(manufacture method of sheet glass)
Then the method for, the manufacturing installation 100 with said structure being manufactured to sheet glass describes.
The manufacture method of sheet glass has fusing operation, in this fusing operation, the position that blows out of the irradiation position of the laser 312 on the surface 32 of flat sheet glass 30 and air-flow 322 is moved with by sheet glass 30 fusing.
When fusing starts, laser 312 center 316 is positioned at the outside of sheet glass 30, only towards the peripheral part irradiating laser 312 of sheet glass 30.Now, air-flow 322 center 326 is also positioned at the outside of sheet glass 30, towards sheet glass 30, does not blow out air-flow 322.
In addition, when fusing starts, towards sheet glass 30, do not blow out air-flow 322, therefore, can not form air-flow 322 yet.The time point of formation air-flow 322 is the time point little delay of comparable formation laser 312 also.
Then, move linkedly to meet the mode of above-mentioned position relationship at laser 312 center 316 and air-flow 322 center 326, and on the surface 32 of sheet glass 30, move respectively.
Then, sheet glass 30 for two portions, when laser 312, air-flow 322 move to the outside of sheet glass 30, is stopped the output of LASER Light Source 310, the output of nozzle 320 by fusing.
Except above-mentioned fusing operation, the manufacture method of sheet glass also can also have annealing operation, in this annealing operation, the sheet glass 40 obtaining by fusing is carried out to anneal.By this, the residual strain that the local heating in the time of relaxing because of fusing causes.
[embodiment]
Below, according to embodiment etc., an embodiment of the present invention is specifically described.
[example 1～example 8]
The flat sheet glass of thickness 0.6mm (manufacture of Asahi Glass company, AN100, non-alkali glass) is being preheated to after 500 ℃, level loads in traverser, and traverser is moved with 20mm/sec with respect to LASER Light Source (CO2 laser apparatus), nozzle.One side that blows out position and sheet glass of the irradiation position of the lip-deep laser of sheet glass, air-flow linearly movement abreast.
The energy of laser, the L shown in Fig. 8 and W are respectively as shown in table 1～table 2.In table 1～table 2, " energy of laser " refers to the energy that comprises the laser determining in the surperficial plane of sheet glass (following example is all identical).The energy of laser is determined by the output of LASER Light Source, optical system etc.In addition, laser forms linearity (being more specifically ellipticity) comprising in the surperficial plane of sheet glass.
As shown in table 1～table 2, set respectively the flow of the air-flow ejecting from nozzle (exit diameter: 2mm, temperature out: 800 ℃), X and the Y shown in β, the Fig. 8 etc. shown in the α shown in Fig. 7, Fig. 8.
The result of fusing is evaluated by shape, the overhang H of the face that could fuse, fuse.Could fuse is separated into two-part situation by sheet glass and is made as zero, will not be separated into two-part situation to be made as *.The evaluation of shape is with opticmicroscope, to observe the size shape of the fusing face of the part that becomes product, by overhang H be more than 0.1mm situation be made as *, by overhang H lower than 0.1mm but fusing face shape be not that the planar situation of circular arc is made as △, by overhang H lower than 0.1mm and fusing face the planar situation of circular arc that is shaped as be made as zero.Result has been shown in table 1～table 2.
(table 1)
(table 2)
As shown in table 1～table 2, by being set to 10≤L/W≤60, fusing face can be formed to circular arc planar, can be limited in while fusing because gravity makes glass sagging.
[example 9～example 19]
The flat sheet glass of thickness 0.6mm (manufacture of Asahi Glass company, AN100, non-alkali glass) is being preheated to after 500 ℃, and level loads in traverser, and makes traverser with respect to LASER Light Source (CO
2laser apparatus), nozzle moves with 20mm/sec.One side that blows out position and sheet glass of the irradiation position of the lip-deep laser of sheet glass, air-flow linearly movement abreast.
The energy of laser, the L shown in Fig. 8 and W are respectively as shown in table 3～table 4.In addition, laser forms linearity (being more specifically ellipticity) comprising in the surperficial plane of sheet glass.
The flow of the air-flow ejecting from nozzle (exit diameter: 2mm, temperature out: 800 ℃) is made as to 30L/min, the α shown in Fig. 7 is made as to 35 °, the β shown in Fig. 8 is made as to 0 °.As shown in table 3～table 4, set respectively X and the Y shown in Fig. 8 etc.
The result of fusing has been shown in table 3～table 4.
(table 3)
(table 4)
As shown in table 3～table 4, by meeting the formula of-0.25 * L < X < 0.2 * L, can will under the fully softening state of glass, utilize air-flow to cut off, and can after cutting off, fully guarantee that part after softening becomes the time till circle because of surface tension.
[example 20～example 23]
The flat sheet glass of thickness 0.6mm (manufacture of Asahi Glass company, AN100, non-alkali glass) is being preheated to after 500 ℃, level loads in traverser, and traverser is moved with 20mm/sec with respect to LASER Light Source (CO2 laser apparatus), nozzle.One side that blows out position and sheet glass of the irradiation position of the lip-deep laser of sheet glass, air-flow linearly movement abreast.
The energy of laser, the L shown in Fig. 8 and W are as shown in table 5 respectively.Laser forms linearity (being more specifically ellipticity) comprising in the surperficial plane of sheet glass.
The flow of the air-flow ejecting from nozzle (exit diameter: 2mm, temperature out: 800 ℃) is made as to 30L/min, the α shown in Fig. 7 is made as to 35 °, the β shown in Fig. 8 is made as to 0 °.X and Y shown in difference setting Fig. 8 as shown in table 5 waits.
The result of fusing has been shown in table 5.
(table 5)
As shown in table 5, by meeting the formula of 0mm≤Y < 1.5mm, can will under the fully softening state of glass, utilize air-flow to cut off, and can obtain the fusing face of excellent in shape.
[example 24～example 27]
After the flat sheet glass of thickness 0.6mm (manufacture of Asahi Glass company, AN100, non-alkali glass) is preheated to the preheating temperature shown in table 6, level loads in traverser, and makes traverser with respect to LASER Light Source (CO
2laser apparatus), nozzle moves with 20mm/sec.One side that blows out position and sheet glass of the irradiation position of the lip-deep laser of sheet glass, air-flow linearly movement abreast.
The energy of laser is as shown in table 6.L shown in Fig. 8 is made as 4mm, and similarly the W shown in Fig. 8 is made as 0.4mm.Laser forms linearity (being more specifically ellipticity) comprising in the surperficial plane of sheet glass.
The flow of the air-flow ejecting from nozzle (exit diameter: 2mm, temperature out: 800 ℃) is made as to 15L/min, the α shown in Fig. 7 is made as to 35 °, the β shown in Fig. 8 is made as to 0 °.Be made as-0.2mm of X shown in Fig. 8 etc., similarly the Y shown in Fig. 8 etc. is made as 0.5mm.
The result of fusing has been shown in table 6.
(table 6)
As shown in table 6, when preheating temperature is made as to 70～560 ℃, can obtain the fusing face of excellent in shape.
[example 28～example 31]
The flat sheet glass of thickness 0.6mm (manufacture of Asahi Glass company, AN100, non-alkali glass) is being preheated to after 560 ℃, and level loads in traverser, and makes traverser with respect to LASER Light Source (CO
2laser apparatus), nozzle moves with 20mm/sec.One side that blows out position and sheet glass of the irradiation position of the lip-deep laser of sheet glass, air-flow linearly movement abreast.
The energy of laser is as shown in table 7.L shown in Fig. 8 is made as 4mm, and similarly the W shown in Fig. 8 is made as 0.4mm.Laser forms linearity (being more specifically ellipticity) comprising in the surperficial plane of sheet glass.
By from nozzle, (exit diameter: the flow of air-flow 2mm) ejecting is made as 15L/min, is made as 35 ° by the α shown in Fig. 7, and the β shown in Fig. 8 is made as to 0 °, and the be made as-0.2mm of X shown in Fig. 8 is waited, is similarly set as 0.5mm by the Y shown in Fig. 8.The temperature out setting as shown in table 7 of nozzle.
The result of fusing has been shown in table 7.
(table 7)
As shown in table 7, when the temperature out of nozzle being made as to room temperature～800 ℃, can obtain the fusing face of excellent in shape.
[example 32～example 34]
With the preheating temperature shown in table 8 to having after the flat sheet glass (manufacture of Asahi Glass company, AN100, non-alkali glass) of the thickness shown in table 8 carried out preheating, its level is loaded in traverser, and make traverser with respect to LASER Light Source (CO
2laser apparatus), nozzle moves with 60mm/sec.One side that blows out position and sheet glass of the irradiation position of the lip-deep laser of sheet glass, air-flow linearly movement abreast.
The energy of laser is as shown in table 8.L shown in Fig. 8 is made as 4mm, and similarly the W shown in Fig. 8 is made as 0.4mm.Laser forms linearity (being more specifically ellipticity) comprising in the surperficial plane of sheet glass.
X and Y shown in the flow of the air-flow that setting as shown in table 8 is ejected from nozzle (exit diameter: 2mm, temperature out: 800 ℃) respectively, Fig. 8 etc.α shown in Fig. 7 is made as 35 °, and the β shown in Fig. 8 is made as 90 °.
The result of fusing has been shown in table 8.
(table 8)
As shown in table 8, in the sheet glass of thickness 0.1～0.6mm, can obtain the fusing face of excellent in shape.If increase the output of LASER Light Source, the flow of air-flow etc. also can surpass thickness the sheet glass fusing of 0.6mm.
[example 35～example 36]
The flat sheet glass (manufacture of Asahi Glass company, AS, soda-lime glass) with the thickness shown in table 9 is being preheated to after 460 ℃, level loads in traverser, and traverser is moved with 20mm/sec with respect to LASER Light Source (CO2 laser apparatus), nozzle.One side that blows out position and sheet glass of the irradiation position of the lip-deep laser of sheet glass, air-flow linearly movement abreast.
The energy of laser is as shown in table 9, and the L shown in Fig. 8 is made as 4mm, and similarly the W shown in Fig. 8 is made as 0.4mm.Laser forms linearity (being more specifically ellipticity) comprising in the surperficial plane of sheet glass.
X and Y shown in the flow of the air-flow that setting as shown in table 9 is ejected from nozzle (exit diameter: 2mm, temperature out: 800 ℃, α: 35 °, β: 0 °) respectively, Fig. 8 etc.
The result of fusing has been shown in table 9.
(table 9)
As shown in table 9, in the sheet glass of thickness 0.55～1.0mm, can obtain the fusing face of excellent in shape.In addition, if increase the output of LASER Light Source, the flow of air-flow etc. also can surpass thickness the sheet glass fusing of 1.0mm.
[example 37～example 42]
The flat sheet glass of thickness 0.6mm (manufacture of Asahi Glass company, AN100, non-alkali glass) is being preheated to after 500 ℃, and level loads in traverser, and makes traverser with respect to LASER Light Source (CO
2laser apparatus), nozzle moves with 20mm/sec.One side that blows out position and sheet glass of the irradiation position of the lip-deep laser of sheet glass, air-flow linearly movement abreast.
The energy of laser is made as 126W, and the L shown in Fig. 8 is made as 4mm, and similarly the W shown in Fig. 8 is made as 0.4mm.Laser forms linearity (being more specifically ellipticity) comprising in the surperficial plane of sheet glass.
X and Y shown in the flow of air-flow that respectively setting as shown in table 10 is ejected from nozzle (temperature out: 800 ℃, α: 35 °, β: 0 °), the exit diameter of nozzle, Fig. 8 etc.
The result of fusing has been shown in table 10.
(table 10)
As shown in table 10, when the flow of air-flow is made as to 15～20L/min, when the exit diameter of nozzle is made as to 1～2mm, can obtain the fusing face of excellent in shape.
[example 43]
The flat sheet glass of thickness 0.6mm (manufacture of Asahi Glass company, AN100, non-alkali glass) is being preheated to after 560 ℃, load in traverser, and traverser is moved with 60mm/sec with respect to LASER Light Source (CO2 laser apparatus), nozzle.One side that blows out position and sheet glass of the irradiation position of the lip-deep laser of sheet glass, air-flow linearly movement abreast.
The energy of laser is made as 504W, and the L shown in Fig. 8 is made as 4mm, and similarly the W shown in Fig. 8 is made as 0.4mm.Laser forms linearity (being more specifically ellipticity) comprising in the surperficial plane of sheet glass.
The flow of the air-flow ejecting from nozzle (exit diameter: 2mm, temperature out: 800 ℃, α: 35 °, β: 90 °) is made as 20L/min, and the X shown in Fig. 8 etc. is made as 0mm, and similarly the Y shown in Fig. 8 etc. is made as 0.5mm.
Use Sai Namengfa (senarmont) to determine the plane strain that becomes the part (sheet glass) of product after fusing.Consequently, near the plane strain of fusing face is 15.1MPa.
Then, with following condition, this sheet glass is carried out to anneal.
Start temperature: room temperature
Heat-up rate: 5 ℃/min
Top temperature: 710 ℃ (30 minutes)
Cooling rate :-1 ℃/min
After anneal, the plane strain of assay plate glass again.Consequently, near the plane strain of fusing face is 0MPa.
[example 44]
The part that becomes product (sheet glass) obtaining in to example 4 in the condition with identical with example 43 is used the impact tester for simple supported beam of oscillation type to carry out impact strength test after having carried out anneal.Test film is that the sheet glass by cutting off after anneal is produced.Test film is of a size of 60mm * 30mm * 0.6mm, and the length of fusing face is 60mm.
Figure 10 is the explanatory view of impact strength test machine.In Figure 10, with solid line, represent that impulse member 503 is positioned at the state of neutral position, with long and short dash line, represent the state of impulse member 503 from the pendulum of neutral position.
Shock-testing machine 500 has: the rotating shaft 501 of horizontal arrangement; From the vertically extending bar 502 of rotating shaft 501; And the columned impulse member 503 that is fixed on coaxially bar 502.The diameter of impulse member 503 is 19mm, highly for 30mm, weight are 67g, and are SS systems.Impulse member 503 can freely rotate centered by rotating shaft 501, and bar 502 freely rotates to left and right direction from the neutral position in plummet.
In addition, shock-testing machine 500 has the major surfaces of test film 600 601 is supported to the fixture 504 that is inclined relative to horizontal 45 °.Utilize fixture 504 that a side of test film 600 face 602 that fuses is configured to parallel with rotating shaft 501.
In this shock-testing machine 500, impulse member 503 falls after from neutral position pendulum, because of gravity.Impulse member 503 rotates centered by rotating shaft 501, and face 602 collisions that fuse in a side of neutral position and test film 600.During collision, the impact energy that puts on test film 600 is according to the pendulum of the center of gravity 505 of the weight of impulse member 503, impulse member 503, to play height H to calculate.
Then, to whether having produced crack on the fusing face at test film 600, investigate.In the situation that not producing crack, the pendulum that improves impulse member 503 plays height, repeats test.Maximum impact energy while not producing crack is registered as shock strength S (J).The thickness of slab t (mm) of test film 600 is larger, and shock strength S (J) has the tendency that becomes large, and therefore, shock strength S and the ratio S/t of thickness of slab t become the index of the shock resistance that represents sheet glass.
In example 44, shock strength S is 0.05J, and shock strength S and the ratio S/t of thickness of slab t are 0.083J/mm.
[example 45]
The sheet glass obtaining has been carried out to anneal under the condition identical with example 43 in example 26 after, carried out in the same manner impact strength test with example 44.Consequently, shock strength S is 0.08J, and shock strength S and the ratio S/t of thickness of slab t are 0.133J/mm.
[example 46]
The sheet glass obtaining has been carried out to anneal under the condition identical with example 43 in example 27 after, carried out in the same manner impact strength test with example 44.Consequently, shock strength S is 0.05J, and shock strength S and the ratio S/t of thickness of slab t are 0.133J/mm.
For relatively, with cutting knife, on the surface of sheet glass (manufacture of Asahi Glass company, AN100, non-alkali glass, thickness 0.7mm), form the line of rabbet joint, and the test film similarly obtaining cutting off sheet glass along the line of rabbet joint has carried out impact strength test.Consequently, shock strength S is lower than 0.0005J, and shock strength S and the ratio S/t of thickness of slab t are 0.00071J/mm.
In addition, for relatively, same as described above, with grinding stone by by cut off the test film that obtains cut off surface chamfer be treated to circular arc planar after, fillet surface and impulse member are collided, carried out impact strength test.Consequently, shock strength S is 0.03J, and shock strength S and the ratio S/t of thickness of slab t are 0.0043J/mm.
Above, with embodiment and embodiment etc., sheet glass, its making method and manufacturing installation thereof are illustrated, but the present invention is not limited to above-mentioned embodiment and embodiment etc.In the scope of main thought of the present invention that is recorded in claims, can carry out various distortion, change.
The application requires the right of priority of No. 2011-159287, Japanese Patent Patent based on 20Xiang Japan Office files an application in July, 2011, quoted home the full content of No. 2011-159287, Japanese Patent Patent in the application of border.
Nomenclature
10 sheet glass
12 fusing faces
16 corner portions
18 corner portions
30 sheet glass
40 become the part of product
41 fusing faces
47 corner portions
48 corner portions
50 do not become the part of product
The manufacturing installation of 100 sheet glass
200 thermal treatment units
300 device for fusing
310 LASER Light Source
312 laser
316 laser are at the surperficial plane Shang center that comprises sheet glass
320 nozzles
322 air-flows
326 air-flows are at the surperficial plane Shang center that comprises sheet glass
330 carrying rollers (supporting mass)
340 running gears
350 control device
400 annealing devices
Claims (16)
1. a sheet glass, has the fusing face forming by irradiating laser in side, it is characterized in that,
The fusing face of described sheet glass at least has the shape with fillet with the crossing corner portion of a major surfaces of described sheet glass and with the crossing corner portion of another major surfaces of described sheet glass, when the radius-of-curvature of the optional position of each corner portion is made as to r, and when the thickness of slab of the central part of described sheet glass is made as to t, meet the formula of 1/3 * t≤r≤2/3 * t.
2. sheet glass as claimed in claim 1, is characterized in that,
The fusing face of described sheet glass is arc surface.
3. sheet glass as claimed in claim 1 or 2, is characterized in that,
The fusing face of described sheet glass with respect to the central part of described sheet glass the overhang in thickness of slab direction lower than 0.1mm.
4. sheet glass as claimed any one in claims 1 to 3, is characterized in that,
The thickness of slab of the central part of described sheet glass is 0.05～1.0mm.
5. the sheet glass as described in any one in claim 1 to 4, is characterized in that,
The purposes of described sheet glass is for showing the indicating meter of image.
6. sheet glass as claimed in claim 5, is characterized in that,
Mass percent with oxide compound benchmark represents, described sheet glass is by containing SiO
2: 50～66%, Al
2o
3: 10.5～24%, B
2o
3: 0～12%, MgO:0～8%, CaO:0～14.5%, SrO:0～24%, BaO:0～13.5%, MgO+CaO+SrO+BaO:9～29.5%, ZrO
2: 0～5% non-alkali glass forms.
7. the sheet glass as described in any one in claim 1 to 6, is characterized in that,
The fusing portion of described sheet glass has the specific refractory power different from the central part of described sheet glass.
8. the sheet glass as described in any one in claim 1 to 7, is characterized in that,
When the shock strength of described sheet glass being made as to S (J), and when the thickness of slab of the central part of described sheet glass is made as to t (mm), S/t is larger than 0.043J/mm.
9. a manufacture method for sheet glass, has fusing operation, in this fusing operation, the irradiation position of laser and the position that blows out of air-flow on the surface of flat sheet glass is moved, with by described sheet glass fusing, it is characterized in that,
Described fusing operation is to be two portions by described sheet glass fusing, and at least two corner portions located in a side or two sides' fusing face are not formed to the operation with the shape of fillet,
Comprising that in the surperficial plane of described sheet glass, described laser forms wire along travel direction, when the length along described travel direction is made as to L, and when width is made as to W, meet the formula of 10≤L/W≤60.
10. the manufacture method of sheet glass as claimed in claim 9, is characterized in that,
Comprising in the surperficial plane of described sheet glass, distance between the center of the above air-flow of travel direction and the center of described laser is made as to X, when being centered close to of described air-flow more leaned on the position in travel direction the place ahead than the center of described laser, by X be made as on the occasion of, when being centered close to of described air-flow more leaned on the position at travel direction rear than the center of described laser, X is made as to negative value, meets the formula of-0.25 * L < X < 0.2 * L.
The manufacture method of 11. sheet glass as described in claim 9 or 10, is characterized in that,
Described fusing operation is to be the operation that becomes the part of product and do not become the part of product by described sheet glass fusing,
Comprising in the surperficial plane of described sheet glass, distance between the mobile route at the center of the center of described air-flow and described laser is made as to Y, when the center of described air-flow is moved towards the product lateral deviation in the both sides of described mobile route, by Y be made as on the occasion of, when the contrary lateral deviation of present dynasty is moved, Y is made as to negative value, meets the formula of 0≤Y.
The manufacture method of 12. sheet glass as described in any one in claim 9 to 11, is characterized in that,
Described manufacture method also has annealing operation, in this annealing operation, the sheet glass obtaining by fusing is carried out to anneal.
The manufacturing installation of 13. 1 kinds of sheet glass, has the device for fusing of sheet glass, and described device for fusing has:
Supporting mass, this supporting mass supports flat described sheet glass;
LASER Light Source, this LASER Light Source irradiates laser;
Nozzle, this nozzle ejection goes out air-flow;
Running gear, this running gear moves the irradiation position of laser lip-deep, that irradiate from described LASER Light Source of the sheet glass that supported by described supporting mass and the position that blows out of the air-flow that goes out from described nozzle ejection; And
Control device, this control device is controlled described running gear,
It is characterized in that,
Described device for fusing is to be two parts by described sheet glass fusing, and at least two corner portions located in a side or two sides' fusing face are not formed to the device with the shape of fillet,
Comprising that in the surperficial plane of described sheet glass, described laser forms wire along travel direction, when the length along described travel direction is made as to L, and when width is made as to W, meet the formula of 10≤L/W≤60.
The manufacturing installation of 14. sheet glass as claimed in claim 13, is characterized in that,
Comprising in the surperficial plane of described sheet glass, distance between the center of the above air-flow of travel direction and the center of described laser is made as to X, when being centered close to of described air-flow more leaned on the position in travel direction the place ahead than the center of described laser, by X be made as on the occasion of, when being centered close to of described air-flow more leaned on the position at travel direction rear than the center of described laser, X is made as to negative value, meets the formula of-0.25 * L < X < 0.2 * L.
The manufacturing installation of 15. sheet glass as described in claim 13 or 14, is characterized in that,
Described device for fusing is to be the device that becomes the part of product and do not become the part of product by described sheet glass fusing,
Comprising in the surperficial plane of described sheet glass, distance between the mobile route at the center of the center of described air-flow and described laser is made as to Y, when the center of described air-flow is moved towards the product lateral deviation in the both sides of described mobile route, by Y be made as on the occasion of, when the contrary lateral deviation of present dynasty is moved, Y is made as to negative value, meets the formula of 0≤Y.
The manufacturing installation of 16. sheet glass as described in any one in claim 13 to 15, is characterized in that,
Described manufacturing installation also has annealing device, and this annealing device carries out anneal to the sheet glass obtaining by fusing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-159287 | 2011-07-20 | ||
| JP2011159287 | 2011-07-20 | ||
| PCT/JP2012/067622 WO2013011877A1 (en) | 2011-07-20 | 2012-07-10 | Plate glass, manufacturing method therefor, and device for manufacturing said plate glass |
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| Publication Number | Publication Date |
|---|---|
| CN103687824A true CN103687824A (en) | 2014-03-26 |
| CN103687824B CN103687824B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280035544.0A Active CN103687824B (en) | 2011-07-20 | 2012-07-10 | Plate glass, manufacturing method therefor, and device for manufacturing said plate glass |
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| Country | Link |
|---|---|
| JP (1) | JP5987829B2 (en) |
| KR (1) | KR20140040802A (en) |
| CN (1) | CN103687824B (en) |
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| WO (1) | WO2013011877A1 (en) |
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| CN104591531A (en) * | 2015-01-20 | 2015-05-06 | 信利半导体有限公司 | Cutting process |
| TWI609754B (en) * | 2015-09-29 | 2018-01-01 | 三星鑽石工業股份有限公司 | Fragmentation method of brittle substrate |
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| JP5942800B2 (en) * | 2012-11-13 | 2016-06-29 | 日本電気硝子株式会社 | Sheet glass manufacturing method |
| WO2014171375A1 (en) * | 2013-04-18 | 2014-10-23 | 旭硝子株式会社 | Glass plate manufacturing method, glass plate manufacturing device and glass plate |
| JP6094816B2 (en) * | 2013-11-05 | 2017-03-15 | 日本電気硝子株式会社 | Sheet glass cutting method |
| WO2019181802A1 (en) * | 2018-03-20 | 2019-09-26 | 三菱電機株式会社 | Image display device and method for producing image display device |
| TWI678342B (en) | 2018-11-09 | 2019-12-01 | 財團法人工業技術研究院 | Cutting method for forming chamfered corners |
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| JP3077462B2 (en) * | 1993-09-01 | 2000-08-14 | 日立電線株式会社 | How to cut glass |
| DE4444547C2 (en) * | 1994-12-14 | 1997-02-27 | Schott Rohrglas Gmbh | Process for the heat-soft cutting of thin-walled glass tubes or plates |
| JP2000203895A (en) * | 1998-12-28 | 2000-07-25 | Nippon Sheet Glass Co Ltd | Windowpane unit |
| JP2002258040A (en) * | 2001-02-27 | 2002-09-11 | Kyocera Corp | Optical element, method of manufacturing the same, and optical device using the same |
| US9346130B2 (en) * | 2008-12-17 | 2016-05-24 | Electro Scientific Industries, Inc. | Method for laser processing glass with a chamfered edge |
-
2012
- 2012-07-10 KR KR1020147000751A patent/KR20140040802A/en not_active Application Discontinuation
- 2012-07-10 WO PCT/JP2012/067622 patent/WO2013011877A1/en active Application Filing
- 2012-07-10 JP JP2013524678A patent/JP5987829B2/en active Active
- 2012-07-10 CN CN201280035544.0A patent/CN103687824B/en active Active
- 2012-07-17 TW TW101125612A patent/TW201309608A/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001057638A1 (en) * | 2000-01-31 | 2001-08-09 | Touch Panel Systems K.K. | Touch panel and method for using the same |
| CN1646437A (en) * | 2000-10-24 | 2005-07-27 | 乔治·居维利耶 | Method and installation for cutting out glass pieces |
| CN101508519A (en) * | 2008-02-11 | 2009-08-19 | 乐金显示有限公司 | Flat display panel cutting apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591531A (en) * | 2015-01-20 | 2015-05-06 | 信利半导体有限公司 | Cutting process |
| TWI609754B (en) * | 2015-09-29 | 2018-01-01 | 三星鑽石工業股份有限公司 | Fragmentation method of brittle substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013011877A1 (en) | 2013-01-24 |
| JPWO2013011877A1 (en) | 2015-02-23 |
| CN103687824B (en) | 2017-02-08 |
| JP5987829B2 (en) | 2016-09-07 |
| KR20140040802A (en) | 2014-04-03 |
| TW201309608A (en) | 2013-03-01 |
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