CN105143119B - The manufacture device of backing roll, the forming method of glass plate, the manufacture method of glass plate and glass plate - Google Patents
The manufacture device of backing roll, the forming method of glass plate, the manufacture method of glass plate and glass plate Download PDFInfo
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- CN105143119B CN105143119B CN201480021500.1A CN201480021500A CN105143119B CN 105143119 B CN105143119 B CN 105143119B CN 201480021500 A CN201480021500 A CN 201480021500A CN 105143119 B CN105143119 B CN 105143119B
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- rotating member
- backing roll
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- glass tape
- glass
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/04—Changing or regulating the dimensions of the molten glass ribbon
- C03B18/06—Changing or regulating the dimensions of the molten glass ribbon using mechanical means, e.g. restrictor bars, edge rollers
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/72—Products characterised by the absence or the low content of specific components, e.g. alkali metal free alumina ceramics
Abstract
A kind of backing roll, the glass tape to flat board banding is supported, including：Rotating member, the rotating member is contacted with the glass tape；Shaft component, the shaft component internally has refrigerant flow path, and is rotated together with the rotating member；And component is stretched out, the component that stretches out has the fork road diverged out from the refrigerant flow path, and is stretched out from the periphery of the shaft component；The rotating member is formed by ceramics, and the heat transfer member with the pyroconductivity higher than the pyroconductivity of the rotating member is configured between component and the rotating member in described stretching out.
Description
Technical field
The present invention relates to the manufacture device of backing roll, the forming method of glass plate, the manufacture method of glass plate and glass plate.
Background technology
The forming method of glass plate possesses the operation of the glass tape that melten glass is molded into flat board banding.Thickness is than balance
The glass tape of thickness of thin can shrink in the direction of the width.Thus, in order to the thickness of glass tape is remained into desired thickness, make
With the backing roll for applying tension force to glass tape in the direction of the width (for example, referring to patent document 1).Backing roll is used in pairs, right
The both sides edge of glass tape is pushed.Multipair backing roll is configured with interval along the moving direction of glass tape.Backing roll exists
Leading section has the rotating member contacted with glass tape, is rotated by making rotating member, and glass tape is sent out along prescribed direction.
While being moved along prescribed direction, gradually cooling is hardened glass tape.
Prior art literature
Patent document
Patent document 1：Japanese Patent Laid-Open 2011-225386 publications
The content of the invention
The technical problems to be solved by the invention
Existing rotating member is formed by metal material, and heat resistance is relatively low.On the other hand, the rotating member for being formed by ceramics
There are problems that because thermograde difference be easily broken it is such.
The present invention makees to solve above-mentioned technical problem, its object is to provide a kind of rotation structure that can suppress ceramics system
The backing roll of part rupture.
Solve the technical scheme that technical problem is used
In order to solve the above-mentioned technical problem, according to an aspect of the present invention, there is provided a kind of backing roll,
The backing roll is the backing roll supported to the glass tape of flat board banding, including：
Rotating member, the rotating member is contacted with the glass tape；
Shaft component, the shaft component internally has refrigerant flow path, and is rotated together with the rotating member；And
Stretch out component, the component that stretches out has a fork road diverged out from the refrigerant flow path, and from the axle
The periphery of component is stretched out,
The rotating member is formed by ceramics,
It is configured between component and the rotating member with higher than the pyroconductivity of the rotating member in described stretching out
Pyroconductivity heat transfer member.
Invention effect
One aspect of the present invention it is possible to provide a kind of backing roll of the rotating member rupture for suppressing ceramics system.
Brief description of the drawings
Fig. 1 is the partial sectional view of the shaped device of the glass plate for representing an embodiment of the present invention.
Fig. 2 is the top view of the substructure of the shaped device of the glass plate for representing Fig. 1.
Fig. 3 is the sectional view of the backing roll for representing an embodiment of the present invention.
Fig. 4 is the chart of time change of the melten glass relative to the wettability of sintered body for representing 1~example of example 4.
Fig. 5 is the sectional view of the rotating member for representing variation.
Fig. 6 is the first width figure of the size of the convex form of the rotating member for representing Fig. 5.
Fig. 7 is the second width figure of the size of the convex form of the rotating member for representing Fig. 5.
Fig. 8 is the sectional view of the rotating member for representing another variation.
Specific embodiment
Hereinafter, referring to the drawings, embodiments of the present invention are illustrated.In following accompanying drawing, to identical or correspondence
Structure mark is identical or corresponding symbol, and omit the description.
Fig. 1 is the partial sectional view of the shaped device of the glass plate for representing an embodiment of the present invention.Fig. 2 is to represent Fig. 1
Glass plate shaped device substructure top view.
Melten glass is shaped to shaped device 10 glass tape 14 of flat board banding.Shaped device 10 is included to motlten metal
The bath 20 that (such as molten tin) 16 is housed, makes the melten glass being continuously fed on motlten metal 16 in motlten metal
Flowed along prescribed direction (X-direction in Fig. 2) on 16, and be shaped to flat board banding.When glass tape 14 is along prescribed direction (Fig. 2
In X-direction) flowing during be cooled after, using runner, by glass tape 14 from motlten metal pull-up, and in annealing furnace
Interior annealing, after glass tape is taken out of from annealing furnace, the size shape of regulation is cut into using cutting machine, and turn into product,
That is glass plate.
Shaped device 10 include the bath 20 housed to motlten metal 16, be arranged at the top board 22 of the top of bath 20 with
And the side wall 24 for blocking the gap between bath 20 and top board 22 etc..Gas supplying path 32 is provided with top board 22, in gas
There is as the heater 34 of heating source insert in body feed path 32.
Gas supplying path 32 supplies reducibility gas to the superjacent air space of motlten metal 16, prevents motlten metal 16
Oxidation.The nitrogen of hydrogen and 85~99 volume %s of the reducibility gas for example containing 1~15 volume %.
In motlten metal 16 and the top of glass tape 14, set with interval along the moving direction and width of glass tape 14
It is equipped with multiple heaters 34.The output of heater 34 is so that from upstream side towards downstream, the temperature of glass tape 14 is
The mode of step-down is controlled.Additionally, the output of heater 34 is so that the thickness of glass tape 14 is equal on width (Y-direction)
Even mode is controlled.
Shaped device 10 has backing roll 40, and the backing roll 40 is used to suppress the glass tape 14 of flat board banding in width
On contraction.Backing roll 40 is used in pairs, and the both sides edge to glass tape 14 pushes.Multipair backing roll 40 is along glass tape
14 moving direction is configured with interval.Backing roll 40 has the rotating member 42 contacted with glass tape 14 in leading section, passes through
Rotating member 42 is rotated, glass tape 14 is sent out along prescribed direction.Glass tape 14 while being moved along prescribed direction, by
Gradually cool down and be hardened.
Fig. 3 is the sectional view of the backing roll for representing an embodiment of the present invention.Backing roll 40 is by rotating member 42, shaft component
44th, as stretch out the flange 46 of component, heat transfer member 48, pressing member 50, the first elastomer 54, heat insulating component 60, to core structure
Part 64, second elastomer 66 etc. are constituted.
Rotating member 42 can also for example be shown in periphery has concavo-convex the 43 of the gear-like contacted with glass tape 14,
To suppress the sideslip relative to glass tape 14.The shape of the convex portion of concavo-convex the 43 of gear-like is not particularly limited, but for example can also
Be formed as front end tapered shape (such as tetrapyamid shape) as shown in Figure 3.As shown in figure 1, concavo-convex the 43 of gear-like along rotating member
The thickness direction (Y-direction of Fig. 1) of 42 periphery forms one and arranges, but it is also possible to form multiple row.
Rotating member 42 does not have refrigerant flow path internally.Further, since insert is in the through hole of rotating member 42
Shaft component 44 is the components different from rotating member 42, therefore, the refrigerant flow path 45 for being formed at shaft component 44 is formed at rotation
Turn the refrigerant flow path of the outside of component 42.
Rotating member 42 is formed by the heat resistance ceramics higher than metal material.As the ceramics of rotating member 42, without spy
Do not limit, but carborundum (SiC) matter ceramics, silicon nitride (Si for example can be used3N4) matter ceramics etc..Carborundum and silicon nitride phase
The tolerance of the steam of the spittle and motlten metal 16 for motlten metal 16 is high, additionally, in elevated temperature strength and creep properties
It is excellent.
The ceramic species of rotating member 42 can be selected according to species of glass etc..For example, in the case of alkali-free glass,
Silicon nitride ceramics because the forming temperature of glass is high therefore excellent preferably on resistance to sudden heating.Silicon nitride ceramics exist
Be also excellent on reactive low this aspect of alkali-free glass.On the other hand, receiving in the case of lime glass, in silicon nitride pottery
Outside porcelain, moreover it is possible to use Silicon carbide ceramic and alumina-based ceramic.
In the case of alkali-free glass, as long as the part at least being contacted with glass tape 14 in rotating member 42 is silicon nitride
Matter ceramics, rotating member 42 is overall to may not be silicon nitride ceramics.For example, it is also possible to by Silicon carbide ceramic it
The layer of silicon nitride ceramics is formed on the base material that outer ceramics are constituted.
Silicon nitride ceramics can also be to the mixed-powder system with the powder containing silicon nitride and the powder of sintering aid
Make formed body be sintered after sintered body.As sintering method, with normal pressure-sintered method, pressure sintering method (including
Hot pressed sintering, gas pressure sintering).As sintering aid, for example, can be used and be selected from aluminum oxide (Al2O3), magnesia (MgO), oxygen
Change titanium (TiO2), zirconium oxide (ZrO2) and yittrium oxide (Y2O3) at least one.
In silicon nitride ceramics, the content of aluminium (Al) is in below 0.1 mass %, preferably less than 0.1 mass %, magnesium
(Mg) content is in below 0.7 mass %, preferably less than 0.7 mass %, and the content of titanium (Ti) is excellent in below 0.9 mass %
Elect as less than 0.9 mass %.If Al content, Mg contents and Ti contents are above range, rotating member 42 and glass tape 14
Reactivity is low, additionally, rotating member 42 is difficult to stick with glass tape 14, can obtain good durability.Al content, Mg contents and
Ti contents can also be respectively 0 mass %.
In silicon nitride ceramics, the content of zirconium (Zr) is in below 3.5 mass %, preferably less than 3.5 mass %, yttrium
(Y) content more than 0.5 mass %, be preferably more than 0.5 mass %, and below 10 mass %, be preferably less than 10 matter
Amount %.Compared with Al and Mg, Ti, Zr and Y is to be not easy the composition with the phase counterdiffusion of glass tape 14, therefore can also be in above-mentioned model
Enclose and be contained within Zr and Y.By containing Zr and Y within the above range, the sintering of silicon nitride powder can be promoted.Zr be it is any into
Point, Zr contents can also be 0 mass %.
In addition, the silicon nitride ceramics of present embodiment are the sintering obtained by normal pressure-sintered method or pressure sintering method
Body is but it is also possible to be the sintered body obtained by reaction sintering.Reaction sintering is by by the powder compacting of metallic silicon (Si)
The method that is heated in nitrogen atmosphere of formed body.Reaction sintering can obtain height due to not using sintering aid
The sintered body of purity, can improve durability of the sintered body relative to glass tape 14.
As the glass plate of product, it is not particularly limited, for example, can is that liquid crystal display (LCD) and plasma show
The glass plate of the flat-panel monitor such as device (PDP), organic el display (FPD).In recent years, the slimming of FPD is advanced,
The thin plateization of the glass plate of FPD is also being advanced.Particularly, in the case of glass for display substrate plate, it is desirable to preferably
The glass plate of below 0.7mm, more preferably below 0.3mm, more preferably below 0.2mm, particularly preferred below 0.1mm.Thus, glass
Thinning with 14 thickness, while the convergent force of the width of glass tape 14 strengthens, the forming temperature of glass tape 14 is uprised.Will
Be described in detail below, the backing roll 40 of present embodiment due to rotating member 42 with as stretch out component flange 46 it
Between be configured with heat transfer member 48, the heat transfer member 48 have the thermal conductivity higher than rotating member 42, therefore can suppress rotation structure
Part 42 ruptures, and is suitable for the shaping of the glass plate of FPD.
It is not particularly limited as the species of the glass plate of product.The composition of glass plate is for example with the matter of oxide benchmark
Measure % to represent, contain SiO2：50~75%, Al2O3：0.1~24%, B2O3：0~12%, MgO：0~10%, CaO：0~
14.5%th, SrO：0~24%, BaO：0~13.5%, Na2O：0~20%, K2O：0~20%, ZrO2：0~5%, MgO+CaO+
SrO+BaO：5~29.5%, Na2O+K2O：0~20%.
Glass plate can also for example be formed by alkali-free glass.Alkali-free glass is to contain substantially no alkali metal oxide
(Na2O、K2O、Li2O etc.) glass.In alkali-free glass, the total amount of the content of alkali metal oxide can 0.1 mass % with
Under.
Alkali-free glass for example represents with the quality % of oxide benchmark, contains SiO2：50~75% (preferably 50~66%),
Al2O3：10.5~24%, B2O3：0~12%, MgO：0~10% (preferably 0~8%), CaO：0~14.5%, SrO：0~
24%th, BaO：0~13.5%, ZrO2：0~5%, MgO+CaO+SrO+BaO：8~29.5% (preferably 9~29.5%).
In alkali-free glass, in the case of DEFORMATION POINTS high and highly dissoluble are realized at the same time, preferably with oxide benchmark
Quality % represents, contains SiO2：58~66%, Al2O3：15~22%, B2O3：5~12%, MgO：0~8%, CaO：0~9%,
SrO：3~12.5%, BaO：0~2%, MgO+CaO+SrO+BaO：9~18%.
In alkali-free glass, in the case of it is particularly desirable that obtaining DEFORMATION POINTS high, preferably with the quality % of oxide benchmark
Represent, contain SiO2：54~73%, Al2O3：10.5~22.5%, B2O3：0~5.5%, MgO：0~10%, CaO：0~9%,
SrO：0~16%, BaO：0~2.5%, MgO+CaO+SrO+BaO：8~26%.
As shown in figure 1, shaft component 44 runs through side wall 24, and it is connected with the drive device 36 for being configured at the outside of side wall 24.Drive
Dynamic device 36 is made up of motor or reductor etc., and shaft component 44 is rotated centered on the center line of shaft component 44.Axle structure
Part 44 is inserted through and is formed in the through hole of the central portion of rotating member 42, is rotated together with rotating member 42.
Shaft component 44 for example can be formed as cylindric, internally to be flowed through with refrigerants such as water supply system by metal material
Refrigerant line 45.As long as refrigerant fluid can, or air etc..
Flange 46 can also be integrally formed with shaft component 44.Flange 46 is in the midway of shaft component 44 from the periphery of shaft component 44
Towards extending radially out for rotating member 42.It is formed with from dividing that the refrigerant flow path 45 of shaft component 44 diverges out in the inner circumferential of flange 46
Branch road, fork road 47 is extended near the periphery of flange 46.Using the refrigerant flowed through in road 47 of diverging, flange 46 is carried out
Cooling.
Heat transfer member 48 is for example formed as ring-type.The internal diameter of heat transfer member 48 is bigger than the external diameter of shaft component 44, heat transfer member
48 do not contact with shaft component 44.Heat transfer member 48 is by the positioning that is formed on the side by the side of rotating member 42 of flange 46
Groove 49 is positioned.
Heat transfer member 48 is arranged between flange 46 and rotating member 42, with the thermal conductivity higher than rotating member 42,
The heat dissipation of the rotating member 42 for coming will be transmitted to flange 46 from glass tape 14.The periphery of rotating member 42 is maintained at will not be with glass
There are the temperature for binding such degree in glass, with 14 so as to reduce rotating torques.
Here, the thermal conductivity of the thermal conductivity of heat transfer member 48 and rotating member 42 is carried out under the temperature in use of backing roll 40
Determine.Under the temperature in use of backing roll 40, the thermal conductivity of heat transfer member 48 is preferably 30~200W/ (m DEG C).
Because flange 46 is cooled down to heat transfer member 48, heat transfer member 48 is cooled down from side to rotating member 42,
Therefore compared with the situation that rotating member 42 is cooled from inner circumferential, can make the thermograde radially of rotating member 42 becomes flat
It is slow, the breakage caused by the thermal stress of rotating member 42 can be suppressed.
As long as heat transfer member 48 is for example formed with the thermal conductivity higher than rotating member 42 by metal and carbon etc..Gold
Belong to and carbon ratio ceramics are soft, thus heat transfer member 48 and the easily close contact of rotating member 42.Therefore, thermal contact resistance is low, heat conduction
Excellent in efficiency.From from the aspect of heat resistance, particularly preferred carbon.
In the case where heat transfer member 48 with the identical material of flange 46 by forming, it is also possible to make heat transfer member 48 and flange
46 are integrally formed.
Rotating member 42 is pressed into heat transfer member 48 by pressing member 50, is reduced between heat transfer member 48 and rotating member 42
Thermal contact resistance.Pressing member 50 is configured in the side opposite with heat transfer member 48 on the basis of rotating member 42.
Pressing member 50 is for example made up of pressing member body 51 and contact site 52.Pressing member body 51 is for example by metal
Formed, shaft component 44 is inserted through and is formed in the through hole of the central portion of pressing member body 51.Contact site 52 can also be with biography
It is ring-type that hot component 48 is identically formed.The external diameter of contact site 52 is bigger than the internal diameter of shaft component 44, contact site 52 with not with axle structure
The mode of the contact of part 44 intensively pushes the opposite side of the contact portion of the heat transfer member 48 in rotating member 42.Contact site 52
Formed by metal or carbon.From from the aspect of heat resistance, particularly preferred carbon.Contact site 52 is by being formed in pressing member body 51
The side by the side of rotating member 42 on locating slot 53 position.Contact site 52 by with the identical of pressing member body 51
In the case that material is formed, it is also possible to contact site 52 is integrally formed with pressing member body 51.
First elastomer 54 be able to will be pushed away along the pressing member 50 of the axially free displacement of shaft component 44 towards rotating member 42
Pressure.First elastomer 52 is for example made up of disc spring, and shaft component 44 is inserted through and is formed in the through hole of the first elastomer 54.Axle structure
Part 44 has screw spindle part 44a, and the first elastomer 54 is screwed togather with the state configuration shunk than nature with screw spindle part 44a
The first nut 58 and rotating member 42 between.In the case where change in size is produced because of temperature change etc., using pressing structure
Part 50, all the time presses rotating member 42 to heat transfer member 48.
In addition, the first elastomer 54 of present embodiment is made up of disc spring, but it is also possible to be made up of helical spring, the first bullet
The structure of gonosome 54 is not particularly limited.In addition it is also possible to without the first elastomer 54, in this case, by by first
Nut 58 is screwed, and the first nut 58 is pressed pressing member 50, and pressing member 50 is urged to rotating member 42
Heat transfer member 48.
Heat insulating component 60 is for example formed as tubular.From from the aspect of processability and cost, heat insulating component 60 can also be
Multiple dividing bodies (such as two semi-cut bodies) are divided into circumference.
Heat insulating component 60 is configured between the inner circumferential of rotating member 42 and the periphery of shaft component 44, with than rotating member 42
Lower thermal conductivity, suppresses the heat dissipation of rotating member 42 to shaft component 44.The thermograde radially of rotating member 42 becomes
Obtain gentler, the breakage caused by the thermal stress of rotating member 42 can be suppressed.
Here, the thermal conductivity of the thermal conductivity of heat insulating component 60 and rotating member 42 is carried out under the temperature in use of backing roll 40
Determine.Under the temperature in use of backing roll 40, the thermal conductivity of heat insulating component 60 is preferably 0.01~30W/ (m DEG C).
As long as the low thermal conductivity of the material of the material thermal conductivity ratio rotating member 42 of heat insulating component 60, does not limit especially
It is fixed, slate etc. for example can be used.Slate can be the natural slate and be mixed into cement that such as clay slate etc. is made up of rock
Any one in the artificial slate of fibrous material.
The outer peripheral face of heat insulating component 60 is the contact surface contacted with the inner peripheral surface of rotating member 42, is more along rotating member
42 center line towards flange 46, the taper that diameter diminishes.Similarly, the inner peripheral surface of rotating member 42 is and heat insulating component
The contact surface of 60 outer peripheral face contact, is the cone that diameter diminishes towards flange 46 more along the center line of rotating member 42
Shape.If the contact surface of at least any one party in the heat insulating component 60 for contacting with each other and rotating member 42 is taper, can subtract
Few loosening between heat insulating component 60 and rotating member 42.In addition, the direction of taper may be reversed, each contact surface can also be got over
Along the center line of rotating member 42 towards flange 46, diameter becomes big taper.
It is the component for making the center line of heat insulating component 60 be alignd with the center line of shaft component 44 to core component 64, for example, is formed
It is tubular, and configures between the inner circumferential of heat insulating component 60 and the periphery of shaft component 44.Can also be with shaft component to core component 64
44 are similarly formed by metal.Due to smaller with the thermal expansion difference of shaft component 44 to core component 64, therefore can make to core component 64
It is set to the gap between shaft component 44 narrower, can be reduced to the loosening between core component 64 and shaft component 44.
In the case where heat insulating component 60 is circumferentially divided into multiple dividing bodies, core component 64 is played makes multiple segmentations
The effect of the aligned in position of body.
It is the contact surface contacted with the inner peripheral surface of heat insulating component 60 to the outer peripheral face of core component 64, is more along rotating member
42 center line towards flange 46, the taper that diameter diminishes.Similarly, the inner peripheral surface of heat insulating component 60 be with to core component
The contact surface of 64 outer peripheral face contact, is the cone that diameter diminishes towards flange 46 more along the center line of rotating member 42
Shape.If the contact surface at least any one party in core component 64 and heat insulating component 60 for contacting with each other is taper, can subtract
Less to the loosening between core component 64 and heat insulating component 60.In addition, the direction of taper may be reversed, each contact surface can also be got over
Along the center line of rotating member 42 towards flange 46, diameter becomes big taper.
In addition, in the present embodiment, being configured with to core structure between the inner circumferential of heat insulating component 60 and the periphery of shaft component 44
Part 64, but it is also possible to not to core component 64, can also have between the periphery of the inner circumferential of heat insulating component 60 and shaft component 44
A little gap.
Second elastomer 66 passes through can be along the axially free displacement of shaft component 44 to core component 64, can be along shaft component 44
The heat insulating component 60 of axially free displacement pushed towards flange 46.Second elastomer 66 is for example made up of disc spring, shaft component 44
It is inserted through and is formed in the through hole of the second elastomer 66.Second elastomer 66 with shunk than nature state configuration with
The second nut 68 that the screw spindle part 44a of shaft component 44 is screwed togather and between core component 64.There is size because of temperature change etc.
In the case of change, can prevent from separating core component 64 with heat insulating component 60, additionally, heat insulating component 60 and rotating member can be prevented
42 separate.
In addition, the second elastomer 66 of present embodiment is made up of disc spring, but it is also possible to be made up of helical spring, to second
The structure of elastomer 66 is not particularly limited.In the case of not to core component 64, the second elastomer 66 and heat insulating component 60
Contact, heat insulating component 60 is pushed towards flange 46.In addition it is also possible to without the second elastomer 66, in this case, pass through
Second nut 68 is screwed, makes to be in close contact core component 64 with heat insulating component 60, make heat insulating component 60 tight with rotating member 42
Contiguity is touched.
In the backing roll 40 of present embodiment, it is contemplated that the mouldability of glass tape 14, preferably shaped device 10 into
(glass tape 14 is for type region (glass tape 14 is the region of the range of viscosities of 104.5~107.5dPas) and the first low-temperature region
The region of the range of viscosities of 106.7~107.65dPas) in use, more preferably forming area (glass tape 14 be 104.5~
The region of the range of viscosities of 107.5dPas) and the second low-temperature region (glass tape 14 be 107.5 (being free of)~107.65dPa
The region of the range of viscosities of s) in use.In the case of alkali-free glass, glass tape 14 is viscous for 104.5~107.5dPas's
To spend the region of scope and be in 946~1200 DEG C of temperature range equivalent to glass tape 14, glass tape 14 is 106.7~
The region of the range of viscosities of 107.65dPas is in 937~1000 DEG C of temperature range, glass tape 14 equivalent to glass tape 14
For 107.5 (being free of)~107.65dPas range of viscosities region equivalent to glass tape 14 be in more than 937 DEG C, be less than
946 DEG C of temperature range.
In addition, backing roll 40 can also be applied in combination with the backing roll of general structure, can also be in forming area, first low
Used in a part for temperature area, the second low-temperature region etc..
(embodiment)
In 1~example of example 4, to sintered body relative to the pass between impurity contained in the wettability and sintered body of melten glass
System is studied.
The test film and breadboard of evaluation according to each example, to different silicon nitride (Si3N4) the ceramic sintered body of matter
It is processed to make.
The content of the impurity in sintered body analyzes the test film for being square from sintered body and being cut by glow discharge spectrometry
To be measured.As the impurity of measure object be as sintering aid comprising impurity, be aluminium (Al), magnesium (Mg), titanium
(Ti), zirconium (Zr), yttrium (Y).
Using high temperature wettability testing machine (Ai Fake science and engineerings Co., Ltd. (ア Le バ ッ Network science and engineerings society) system, WET1200),
To determine wettability of the sintered body relative to melten glass.Specifically, by alkali-free glass (Asahi Glass Co., Ltd's (Asahi Glass
Society) system, AN100) square glass piece be processed into thickness be 1mm test film on, in nitrogen atmosphere, in 10 minutes heat up
To 1150 DEG C, and kept for ten minutes at 1150 DEG C, to generate melten glass, then by temperature from 1150 DEG C of reductions in 90 seconds
To 1050 DEG C, and maintain 1050 DEG C, the contact angle to drop is measured.Determine be reduced to 1050 DEG C of moment and from
Carried out behind two hours from the moment, after four hours, after six hours, after eight hours.Contact angle is bigger, it is meant that melten glass is got over
It is not easy to be bedewed on sintered body, therefore represents that melten glass is reactive low with sintered body.Additionally, the time change of contact angle
It is fewer, it is meant that easier to continue this adhesional wetting degree of being difficult.
The result of evaluation is shown in table 1 and Fig. 4.In fig. 4, the longitudinal axis represents contact angle (°), and transverse axis represents elapsed time (h：
Hour).In addition, 10000 mass ppm are 1 mass %.
Table 1
Knowable to table 1 and Fig. 4, if the content of Al is in below 0.1 mass %, preferably less than 0.1 mass %'s, Mg contains
Measure in below 0.7 mass %, be preferably less than the content of 0.7 mass %, Ti in below 0.9 mass %, preferably less than 0.9 matter
Amount %, the content of Zr in below 3.5 mass %, be preferably less than the content of 3.5 mass %, Y in more than 0.5 mass % and 10
Below quality %, preferably more than 0.5 mass %, less than 10 mass %, then the time change of contact angle was fewer, by 8 hours
Contact angle afterwards is bigger, therefore can obtain good durability.
More than, implementation method of the manufacture device of backing roll, the manufacture method of glass plate and glass plate etc. is said
It is bright, but the present invention is not limited to above-mentioned implementation method.Carried out in the range of the content that the present invention can be recorded in detail in the claims
Deformation and improvement.
For example, the backing roll 40 of above-mentioned implementation method can make glass tape 14 is molded in the float glass process on motlten metal 16
With, but it is also possible to for other forming methods, for example, can be used for fusion method.
The rotating member 42 of above-mentioned implementation method has the concavo-convex of gear-like in periphery, but it is also possible to do not have tooth in periphery
Colyliform it is concavo-convex.Because refrigerant does not flow in the inside of rotating member, therefore near rotating member, glass tape will not be strong
The cooling of power ground, and be not easy to be hardened.Thus, even without the concavo-convex of gear-like, rotating member also easily glass tape carried out by
Pressure, so as to the contraction on the width for suppressing glass tape.
Fig. 5 is the sectional view of the rotating member for representing variation.Fig. 6 is the chi of the convex form of the rotating member for representing Fig. 5
The first very little width figure.Fig. 7 is the first width figure of the size of the convex form of the rotating member for representing Fig. 5.
Using the rotating member 242 shown in Fig. 5, to replace the rotating member 42 shown in Fig. 3.The periphery of rotating member 242
The cross sectional shape of face complete cycle is formed as the bending protruded to radial outside, and axial central portion is than axial both ends more towards radially
It is protruding outside.The outer peripheral face complete cycle of rotating member 242 has identical cross sectional shape.It is concavo-convex due to no gear-like, because
This does not allow cracky, can reduce shaping and processing cost.
For example, as shown in Figure 6, it is considered to the grasping force between glass tape 14, the forniciform radius of curvature R a of above-mentioned protrusion
Preferably R1~R100mm, is more preferably R3~R50, particularly preferably more preferably R5~R30, R10~R20.Additionally, upper
In stating the bending of protrusion, such as shown in fig. 7, the song at the radius of curvature R b of above-mentioned axial central portion and above-mentioned axial both ends
Rate radius Rc can also be compound R.Now, radius of curvature R b, Rc is both preferably R1~R100mm, is more preferably R3~R50, more
Preferably R5~R30, particularly preferably R10~R20.Additionally, in the bending of above-mentioned protrusion, it is also possible to have in a part
There is flat part, but due to can more make the grasping force stabilization with glass tape 14 without flat part, thus preferably.
In view of the grasping force between glass tape 14, the half of the forniciform rotating member 242 of the above-mentioned protrusion shown in Fig. 6
The width d in footpath direction is preferably more than 0.5mm, is more preferably more than 1mm, more preferably more than 2mm.Similarly, above-mentioned protrusion
The width d of radial direction of forniciform rotating member 242 be preferably below 5mm, be more preferably below 4mm.
In view of the horizontality for preventing the contact with glass tape 14 of flange 46 and shaft component 44, the rotating member shown in Fig. 6
242 radius r is preferably more than 100mm, is more preferably more than 150mm, more preferably more than 180mm；In view of rotating member
The fine setting of the rotary speed of position adjustments and rotating member 242 between 242 and glass tape 14, the radius r of rotating member 242 is preferred
It is less than 350, is more preferably below 300mm, more preferably below 270mm.
In view of the grasping force between glass tape 14, the thickness w of rotating member 242 is preferably more than 5mm, more preferably for
More than 10mm, more preferably more than 15mm, particularly preferably more than 30mm；In view of improve glass tape 14 flatness and prevent
The expansion of unwanted grasping width, the thickness w of rotating member 242 is preferably below 120mm, is more preferably below 100mm, more
Preferably below 60mm, particularly preferably below 40mm.
Fig. 8 is the sectional view of the rotating member for representing another variation.Using the rotating member 342 shown in Fig. 8, to replace
Rotating member 42 shown in Fig. 3.The cross sectional shape of the outer peripheral face of rotating member 342 for flat, rotating member 342 outer peripheral face with
There is boundary portion of the cross sectional shape with fillet between side.Boundary portion is formed by modes such as chamferings.
In the variation shown in the variation and Fig. 8 shown in Fig. 5, it is also possible to set many on the outer peripheral face of rotating member
Individual height is the projection of 0.1~10mm, and it is 0.1~10mm's that multiple depth can also be set on the outer peripheral face of rotating member
Groove.Further, it is also possible to be provided with projection and the side of groove two on the outer peripheral face of rotating member.The height of projection and the depth of groove are revolving
Face carries out computation and measurement on the basis of turning the outer peripheral face of component.Radius r, Fig. 6 institute shown in the height of projection and depth ratio Fig. 6 of groove
Radius of curvature R b, Rc shown in radius of curvature R a and Fig. 7 shown is small.
This application claims the Japan Patent Patent 2013-104378 that on May 16th, 2013 files an application to Japan Office
Number priority, and the full content of Japan Patent Patent 2013-104378 is included into the application.
(symbol description)
10 shaped devices
40 backing rolls
42 rotating members
43 is concavo-convex
44 shaft components
46 flanges (stretch out component)
48 heat transfer members
50 pressing members
51 pressing member bodies
52 contact sites
54 first elastomers
60 heat insulating components
64 pairs of core components
66 second elastomers.
Claims (15)
1. a kind of backing roll, the glass tape to flat board banding is supported, it is characterised in that including：
Rotating member, the rotating member is contacted with the glass tape；
Shaft component, the shaft component internally has refrigerant flow path, and is rotated together with the rotating member；And
Stretch out component, the component that stretches out has a fork road diverged out from the refrigerant flow path, and from the shaft component
Periphery stretch out,
The rotating member is formed by ceramics,
It is configured between component and the rotating member with the heat higher than the pyroconductivity of the rotating member in described stretching out
The heat transfer member of conductivity.
2. backing roll as claimed in claim 1, it is characterised in that with the rotating member is pressed against into the heat transfer member
On pressing member.
3. backing roll as claimed in claim 2, it is characterised in that with by can on the direction of principal axis of the shaft component free position
The first elastomer that the pressing member for moving is pushed to the rotating member.
4. the backing roll as any one of claims 1 to 3, it is characterised in that
The shaft component is formed through in the through hole of the rotating member,
Configuration has the heat transfer than the rotating member between the inner circumferential of the rotating member and the periphery of the shaft component
The heat insulating component of the low pyroconductivity of rate.
5. backing roll as claimed in claim 4, it is characterised in that being contacted with the heat insulating component in the rotating member
Contact surface is taper.
6. backing roll as claimed in claim 4, it is characterised in that being contacted with the rotating member in the heat insulating component
Contact surface is taper.
7. the backing roll as described in claim 5 or 6, it is characterised in that with by can on the direction of principal axis of the shaft component from
The heat insulating component from displacement is to second elastomer for stretching out component pushing.
8. the backing roll as any one of claims 1 to 3, it is characterised in that in the rotating member at least with institute
The part for stating glass tape contact is formed by silicon nitride ceramics.
9. backing roll as claimed in claim 8, it is characterised in that the silicon nitride ceramics are sintered body, and aluminium (Al's) contains
, in below 0.1 mass %, in below 0.7 mass %, the content of titanium (Ti) is in below 0.9 mass % for the content of magnesium (Mg) for amount.
10. backing roll as claimed in claim 9, it is characterised in that in the silicon nitride ceramics, the content of zirconium (Zr) exists
Below 3.5 mass %, the content of yttrium (Y) is in more than 0.5 mass %, below 10 mass %.
11. backing roll as any one of claims 1 to 3, it is characterised in that the outer peripheral face complete cycle of the rotating member
Cross sectional shape be formed as to radial outside protrude bending.
12. backing roll as any one of claims 1 to 3, it is characterised in that the rotating member has tooth in periphery
Colyliform it is concavo-convex.
13. a kind of forming methods of glass plate, it is characterised in that with the branch any one of usage right requirement 1~12
The operation that runner is supported to the glass tape of flat board banding.
14. a kind of manufacture methods of glass plate, it is characterised in that with the branch any one of usage right requirement 1~12
The operation that runner is supported to the glass tape of flat board banding, afterwards, with the operation glass tape annealed, is cut off.
15. a kind of shaped devices of glass plate, it is characterised in that with the backing roll any one of claim 1~12.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013104378 | 2013-05-16 | ||
| JP2013-104378 | 2013-05-16 | ||
| PCT/JP2014/056033 WO2014185126A1 (en) | 2013-05-16 | 2014-03-07 | Support roller, method for molding glass plate, method for manufacturing glass plate, and device for manufacturing glass plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105143119A CN105143119A (en) | 2015-12-09 |
| CN105143119B true CN105143119B (en) | 2017-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480021500.1A Active CN105143119B (en) | 2013-05-16 | 2014-03-07 | The manufacture device of backing roll, the forming method of glass plate, the manufacture method of glass plate and glass plate |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6137306B2 (en) |
| KR (1) | KR102153288B1 (en) |
| CN (1) | CN105143119B (en) |
| WO (1) | WO2014185126A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110607B (en) * | 2015-08-28 | 2017-05-24 | 河南省海川电子玻璃有限公司 | Ceramic edge rolling wheel for glass edge roller and preparation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4727649Y1 (en) * | 1969-10-14 | 1972-08-22 | ||
| JPH0222336U (en) * | 1988-07-29 | 1990-02-14 | ||
| JPH08277131A (en) * | 1995-04-05 | 1996-10-22 | Asahi Glass Co Ltd | Edge roll apparatus for producing float glass |
| JPH10212128A (en) * | 1997-01-29 | 1998-08-11 | Asahi Glass Co Ltd | Apparatus for producing float glass |
| TW450861B (en) * | 1998-05-13 | 2001-08-21 | Toyo Kohan Co Ltd | Manufacturing method of a combination material of metal foil and ceramic, and metal foil laminated ceramic substrate |
| JP3754271B2 (en) * | 2000-04-28 | 2006-03-08 | 新日本製鐵株式会社 | Butterfly valve and manufacturing method thereof |
| CN201052995Y (en) * | 2007-06-16 | 2008-04-30 | 金晶(集团)有限公司 | Glass edge-pulling machine head |
| KR101285989B1 (en) * | 2009-06-19 | 2013-07-15 | 아사히 가라스 가부시키가이샤 | Top roller, float glass production device, and float glass production method |
| JP5565062B2 (en) | 2010-04-15 | 2014-08-06 | 旭硝子株式会社 | Float glass manufacturing apparatus and float glass manufacturing method |
-
2014
- 2014-03-07 KR KR1020157025749A patent/KR102153288B1/en active IP Right Grant
- 2014-03-07 JP JP2015516964A patent/JP6137306B2/en active Active
- 2014-03-07 CN CN201480021500.1A patent/CN105143119B/en active Active
- 2014-03-07 WO PCT/JP2014/056033 patent/WO2014185126A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| KR102153288B1 (en) | 2020-09-08 |
| JPWO2014185126A1 (en) | 2017-02-23 |
| CN105143119A (en) | 2015-12-09 |
| KR20160010401A (en) | 2016-01-27 |
| JP6137306B2 (en) | 2017-05-31 |
| WO2014185126A1 (en) | 2014-11-20 |
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Address after: Tokyo, Japan Patentee after: AGC Corporation Address before: Tokyo, Japan Patentee before: Asahi Glass Co., Ltd. |