CN1994944B - Forming brick - Google Patents
Forming brick Download PDFInfo
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- CN1994944B CN1994944B CN2006101283592A CN200610128359A CN1994944B CN 1994944 B CN1994944 B CN 1994944B CN 2006101283592 A CN2006101283592 A CN 2006101283592A CN 200610128359 A CN200610128359 A CN 200610128359A CN 1994944 B CN1994944 B CN 1994944B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
- C03B17/064—Forming glass sheets by the overflow downdraw fusion process; Isopipes therefor
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Abstract
The invention discloses a controlling method of deforming shaping brick due to high-temperature crawl in the flat glass manufacturing course through downward overflow technique, which comprises the following parts: inlet pipe to transmit shaping brick into fusing glass, shaping groove with two walls and certain curved bottom, V-shaped structure to flow fused glass downwards from two sides of shaping groove and inlet end composition with inlet end guide wall and shaping brick support face, wherein the support bulk integrates shaping brick, which controls crawl deformation under high temperature effectively.
Description
Technical field
The present invention relates to a kind of forming brick that uses downward overflow process to produce control high temperature wriggling generation distortion in the sheet glass method, this forming brick weakens under the high temperature effect to forming brick of pressure that melten glass the forming brick gravity and grooving produces forming brick by the method from top fixed weir brick intermediate support block, thus the amount of control forming brick high temperature creeping deformation.
Background technology
The sheet glass of press over system production downwards is one of basic fundamental of generally acknowledging, U.S. Pat 3338696 described the technology that downward press over system is produced sheet glass in detail in 1967.The reference in content of this patent is in conjunction with in the present invention, and purpose is the detailed technique background of introducing.Fig. 1 a is the process flow diagram that downward press over system is produced sheet glass, and Fig. 1 b is the cross sectional representation of forming brick and closed furnace.101 is tank furnace, and 102 is the melten glass passage, and 103 is forming brick, and 104 is sheet glass, and 105 is closed furnace, and 106 is the melten glass in the grooving, and 107 is rapid cooling zone, and 108 is the annealed zone.Melten glass in tank furnace 101 after the fusing enters into forming brick 103 through clarification, stirring and the cooling of glazing channel 102.Forming brick is covered by in the closed furnace 105, and the effect of closed furnace 105 is the temperature when guaranteeing that forming brick is in forming of glass.Forming brick 103 shows that as Fig. 2 a, 2b, 2c 2a is the forming brick schematic three dimensional views, and 2b is the forming brick frontview, and 2c is a forming brick A-A sectional view.Melten glass enters into the grooving of forming brick from the inlet tube 201 of forming brick 20, grooving is made of groove bottom 202, both walls 203a and the 203b that certain curve form requires, and forming brick also has V-type body 204, entrance end molectron 205a, the far-end molectron 205b of two plane of symmetry 204a and 204b.Inlet tube 201 is in entrance end molectron 205a, guide wall 206a and the bearing surface 207a that is used to support forming brick that melten glass is arranged on entrance end molectron 205a, guide wall 206b and the bearing surface 207b that is used to support forming brick that melten glass is arranged on far-end molectron 205, bearing surface 207a and 207b are placed in entrance end respectively and support on brick 209a and the far-end support brick 209b, and the root of V-type body 204 is 208.From the inlet tube 201 of forming brick 20, enter into the grooving of forming brick through fusing, clarification, stirring, the uniform and stable melten glass of refrigerative, flow downward after overflowing from the top of 203a and 203b then, behind two plane of symmetry 204a of V-type body and 204b, root 208 places at V-type body 204 merge into a sheet glass, through the quick cooling of 107 rapid cooling zones to sheet glass, the annealing of annealed zone 108 is configured as sheet glass again.The purpose of guide wall 206a, 206b on forming brick 20 two ends molectron 205a, the 205b is the width that guarantees the glass of overflow.Make the sheet glass of producing in this way,, do not contact any material, make the sheet glass of producing in this way smooth, smooth, can satisfy the demand without grinding and polishing because the surface tension polishing at forming brick overflow wall top is all passed through on the glass two sides.
When use was produced sheet glass to the underflow stream method, forming brick generally used the refractory materials of resistant to elevated temperatures densification, fixes in the two end supports of forming brick.The bottom surface 202 of the thickness distribution of sheet glass and the grooving of forming brick, the top surface shape of grooving two abutment wall 102a, 102b are relevant.Because the glass-pane shaping temperature is 1000 ℃～1300 ℃,, be that forming of glass is temperature required in the closed furnace so this forming brick is enclosed in the closed furnace.Forming brick middle does not support under this temperature, produces sagging creeping deformation under the effect of the pressure that gravity and grooving glass weight cause.Can cause the sheet thickness uniformity coefficient to exceed specification and be forced to change forming brick after distortion is serious.When producing high generation glass substrate, the width of glass substrate is bigger, and the span at mould brick two ends strengthens thereupon, and mould brick self is heavier, and this sagging creeping deformation phenomenon is more serious, has had a strong impact on the work-ing life of mould brick like this.
U.S. Pat 3437470 has been introduced a kind of method that prevents forming brick high temperature creeping deformation, shows as Fig. 3 a.Wherein 301 is mould brick, and 304 is the support brick at mould brick two ends, and 302 is to bore sky at mould brick lower central position, inserts the minimum metal bar of a creep compliance 303, and metal bar 303 two end supports are supporting on the brick.The shortcoming of this method is the cost height and is difficult to realize.U.S. Pat 20050183455 has been introduced the method for another control forming brick high temperature creeping deformation, shows as Fig. 3 b.Apply certain power F at the downside of forming brick 306 and offset the effect of forming brick gravity to forming brick, wherein 307 is the support brick of mould brick.The shortcoming of this method is that for some time postforming brick can shorten, and the width of sheet glass just is difficult to reach requirement like this.Chinese patent CN01821788 has introduced a kind of refractory materials of certain ingredients, and the high temperature creep-resisting performance of this refractory materials is better than other refractory materialss.But this refractory materials is difficult to make and yield rate is low, the production cost height.
Therefore, when using when the technology of underflow stream is produced sheet glass, control is the subject matter that solves forming defects because of long-time stressed generation creeping deformation under the forming brick high temperature.A certain amount of creeping deformation can cause the sheet glass thickness distribution inhomogeneous and be forced to change forming brick.
Summary of the invention
In view of the above, the purpose of this invention is to provide a kind of high temperature wriggling of controlling and produce the forming brick of distortion.Specifically, weaken the effect of pressure that melten glass forming brick gravity and the grooving produces forming brick by method exactly to forming brick from top fixed weir brick intermediate support block, thus the amount of control forming brick high temperature creeping deformation.
The object of the present invention is achieved like this: this forming brick comprises: inlet tube, and it is used for transferring of molten glass; Be used to accept the grooving of melten glass, this groove is by the body of wall on both sides and have the bottom surface of certain curve form to constitute; V-type body structure, melten glass flow downward after overflowing from the grooving both sides, converge into a sheet glass at the root melten glass of V-type body; The inlet end molectron comprises inlet end guide wall and forming brick inlet end bearing surface; The exit end molectron, it comprises exit end guide wall and forming brick exit end bearing surface, in the middle of the grooving of forming brick a supporter is arranged along its length, this supporter and forming brick are structure as a whole.
The supporter of this forming brick is divided into two independently cell bodies to grooving.Several open holess are arranged at the supporter top of this forming brick.One bulge-structure is arranged at the supporter top of this forming brick.
The supporter of this forming brick is made up of plurality of sections, is distributed in the grooving along its length.Several open holess are arranged at the supporter top of this forming brick.One bulge-structure is arranged at the supporter top of this forming brick.
Positively effect of the present invention is as follows:
The creeping deformation phenomenon at high temperature can take place in refractory materials.Creeping deformation is exactly deflection and time relation.Creeping deformation is divided into three phases, unstable creep (creep for the first time), creep steady stage (subordinate phase) and transient creep stage (creep for the third time is damaged).Creep is represented with Deformation velocity ε.The creep process of refractory materials material can be described with creep curve, and in suitable stress and temperature range, typical creep curve as shown in Figure 4.The OA line segment is the initial elongation σ i that sample is produced when bearing constant tensile stress sigma under temperature T among the figure, and this is the dependent variable that produces immediately loading, and it comprises recoverable deformation and plastic degeneration's two portions, and this dependent variable should not can be regarded as creep compliance certainly.Creep is from the A point, along with the increase of time, has experienced the variation of A, B, C, D in the curve.Usually according to creep speed
Creep process is divided into three phases.Fs AB claims the transient creep stage again at the deceleration creep stage, and this stage, the creep speed of beginning was very big from slope of a curve as can be seen, and along with the time increases, creep speed reduces gradually, reaches minimum value to the B point.Subordinate phase BC claims state creep stage again at the steady creep stage, and the creep speed in this stage remains unchanged.The creep speed of general indication, this stage that all is meant, otherwise with meaningless and do not have an actual application value.Phase III CD is the tertiary creep stage.Along with the time increases, creep speed is more and more faster, to the just creep rupture of D point.Represented creep process is a typical case, only just can clearly show this three phases at suitable stress and temperature range.Two main parameters that influence the material creep process are temperature and stress.When temperature reduces or stress reduces, creep process is slowed down, can see that at this moment the creep subordinate phase is very long, phase III even can not occur.Otherwise when temperature rising or stress increase, subordinate phase is shorter, even the disappearance of middle straight line portion, carries out the transition to the phase III by the creep fs soon.The time that the creep fs is is very short.The high temperature creep of general refractory materials is meant refractory materials creep subordinate phase at high temperature, and secondary creep speed can be by creep law ε=A* σ
n* exp (represents that Q/T) wherein: A, n, Q are determined that by the character of refractory materials own ε is a creep speed, and σ is a stress.
When use was produced sheet glass to the underflow stream method, forming brick generally used resistant to elevated temperatures high fine and close refractory materials, fixes in the two end supports of forming brick.Because the glass-pane shaping temperature is 1000 ℃～1300 ℃, under this high temperature, forming brick produces sagging creeping deformation under the effect of the pressure that glass weight causes in gravity and grooving.Can cause the sheet thickness uniformity coefficient to exceed specification and be forced to change forming brick after distortion is serious.We can regard forming brick as a girder construction, according to refractory materials creep law ε=A* σ
n* (Q/T), wherein: A, n, Q are determined that by the character of refractory materials own it will obtain after a series of gained data fittings after can using refractory materials creep measurement machine to measure to exp.ε is a creep speed, and σ is a stress.Therefore the creeping deformation of forming brick is except the characteristic (decision A, n, Q) and use temperature T of the material of overflow brick own, and a stress that is subjected to each particle of forming brick is relevant.
If with the forming brick two end supports, show as Fig. 5 a.We simplify forming brick according to beam, use finite element analysis software that it is carried out for some time creeping deformation analysis, and it the results are shown in Figure 5b.If forming brick top is lifted, show as Fig. 5 c.We simplify forming brick according to beam, use finite element analysis software that it is carried out for some time creeping deformation analysis, and it the results are shown in Figure 5d.We can see from figure, make the creeping deformation that can well suppress forming brick in this way.
As Fig. 6 a, 6b, 6c be shown a certain embodiment of this patent three-dimensional, face, the A-A cross-sectional schematic.Melten glass enters into the grooving of forming brick from the inlet tube 601 of forming brick 60, grooving is made of groove bottom 602, the both walls 603a and 603 that certain curve form requires, forming brick also has the middle supporter 606 along its length of V-type body 604, entrance end molectron 605a, far-end molectron 605b and the forming brick of two plane of symmetry 604a and 604b to constitute, and these structures are structure as a whole.Inlet tube 601 is in entrance end molectron 605a, guide wall 607a and the bearing surface 608a that is used to support forming brick that melten glass is arranged on entrance end molectron 605a, guide wall 607b and the bearing surface 608b that is used to support forming brick that melten glass is arranged on far-end molectron 605, bearing surface 608a and 608b are placed in entrance end respectively and support on brick 611a and the far-end support brick 611b, the root of V-type body 604 is 609, open holes 610 is arranged at the top of supporter 606, supporter 606 extends to the outside of forming brick periphery seal stove, uses open holes 610 to link to each other with the closed furnace support steel structure.The closed furnace support steel structure is thought constant body.Melten glass enters into the grooving of forming brick from the inlet tube 601 of forming brick 60, flow downward after overflowing from the top of 603a and 603b then, behind two plane of symmetry 604a of V-type body and 604b, root 609 places at V-type body 604 merge into a sheet glass, through drawing, chilling, annealing are configured as sheet glass again.The purpose of guide wall 607a, 607b on forming brick 60 two ends molectron 605a, the 605b is the width that guarantees the glass of overflow.In the horizontal component of inlet tube, supporter extends into V-type triangle body 612, does not form the glass dead band with level and smooth inflow the smoothly that guarantees melten glass.Partial view such as Fig. 7 show that the glass flow direction is 701 to 702.
Therefore the present invention can be controlled at the creeping deformation that produces in the hot environment effectively.Specifically, weaken the effect of pressure that melten glass forming brick gravity and the grooving produces forming brick by method exactly to forming brick from top fixed weir brick intermediate support block, thus the amount of control forming brick high temperature creeping deformation.
Description of drawings:
Fig. 1 a and 1b are downward press over system production technique synoptic diagram.
Fig. 2 is a forming brick synoptic diagram in the downward press over system technology.
Fig. 3 a, 3b are the method for at present known two kinds of control forming brick high temperature creeping deformations.
Fig. 4 is the creep curve synoptic diagram.
Fig. 5 a to 5d is for being the synoptic diagram of the analysis of two kinds of situations of forming brick creep.
Fig. 6 a, 6b, 6c be an embodiment of this patent three-dimensional, face, cross-sectional schematic.
Fig. 7 extends to part synoptic diagram in the inlet tube for the supporter of forming brick among Fig. 6.
Fig. 8 a, 8b, 8c be another embodiment of this patent three-dimensional, face, cross-sectional schematic.
Fig. 9 a, 9b, 9c be another embodiment of this patent three-dimensional, face, cross-sectional schematic.
Figure 10 a, 10b, 10c be another embodiment of this patent three-dimensional, face, cross-sectional schematic.
Figure 11 a, 11b, 11c be another embodiment of this patent three-dimensional, face, cross-sectional schematic.
Figure 12 a, 12b are three-dimensional, the front elevational schematic of another embodiment of this patent.
Figure 13 a, 13b, 13c be another embodiment of this patent three-dimensional, face, cross-sectional schematic.
Figure 14 a, 14b are three-dimensional, the front elevational schematic of another embodiment of this patent.
Embodiment:
As Fig. 6 a, 6b, 6c be shown an embodiment of this patent three-dimensional, face, the A-A cross-sectional schematic.Melten glass enters into the grooving of forming brick from the inlet tube 601 of forming brick 60, grooving is made of groove bottom 602, both walls 603a and the 603b that certain curve form requires, forming brick also has the middle supporter 606 along its length of V-type body 604, entrance end molectron 605a, far-end molectron 605b and the forming brick of two plane of symmetry 604a and 604b to constitute, and these structures are structure as a whole.Inlet tube 601 is in entrance end molectron 605a, guide wall 607a and the bearing surface 608a that is used to support forming brick that melten glass is arranged on entrance end molectron 605a, guide wall 607b and the bearing surface 608b that is used to support forming brick that melten glass is arranged on far-end molectron 605, bearing surface 608a and 608b are placed in entrance end respectively and support on brick 611a and the far-end support brick 611b, the root of V-type body 604 is 609, open holes 610 is arranged at the top of supporter 606, supporter 606 extends to the outside of forming brick periphery seal stove, utilizes open holes 610 to be fixed by the closed furnace support steel structure.The closed furnace support steel structure is constant body.Melten glass enters into the grooving of forming brick from the inlet tube 601 of forming brick 60, flow downward after overflowing from the top of 603a and 603b then, behind two plane of symmetry 604a of V-type body and 604b, root 609 places at V-type body 604 merge into a sheet glass, through drawing, chilling, annealing are configured as sheet glass again.The purpose of guide wall 607a, 607b on forming brick 60 two ends molectron 605a, the 605b is the width that guarantees the glass of overflow.In the horizontal component of inlet tube, supporter extends into V-type triangle body 612, does not form the glass dead band with level and smooth inflow the smoothly that guarantees melten glass.Partial view such as Fig. 7 show that the glass flow direction is 701 to 702.
As Fig. 8 a, 8b, 8c be shown another embodiment of this patent three-dimensional, face, the A-A cross-sectional schematic.Melten glass enters into the grooving of forming brick from the inlet tube 801 of forming brick 80, grooving is made of groove bottom 802, both walls 803a and the 803b that certain curve form requires, forming brick also has the middle supporter 806 along its length of V-type body 804, entrance end molectron 805a, far-end molectron 805b and the forming brick of two plane of symmetry 804a and 804b to constitute, and these structures are structure as a whole.Inlet tube 801 is in entrance end molectron 805a, guide wall 807a and the bearing surface 808a that is used to support forming brick that melten glass is arranged on entrance end molectron 805a, guide wall 807b and the bearing surface 808b that is used to support forming brick that melten glass is arranged on far-end molectron 805, bearing surface 808a and 808b are placed in entrance end respectively and support on brick 811a and the far-end support brick 811b, the root of V-type body 804 is 809, open holes 810 is arranged at the top of supporter 806, supporter 806 extends to the outside of forming brick periphery seal stove, utilizes open holes 810 to be fixed by the closed furnace support steel structure.The closed furnace support steel structure is constant body.Melten glass enters into the grooving of forming brick from the inlet tube 801 of forming brick 80, flow downward after overflowing from the top of 803a and 803b then, behind two plane of symmetry 804a of V-type body and 804b, root 809 places at V-type body 804 merge into a sheet glass, through drawing, chilling, annealing are configured as sheet glass again.The purpose of guide wall 807a, 807b on forming brick 80 two ends molectron 805a, the 805b is the width that guarantees the glass of overflow.The different inlet tubes that are of the embodiment that this embodiment and Fig. 6 show, the inlet tube of this embodiment is divided right and left, respectively feed.
As Fig. 9 a, 9b, 9c be shown another embodiment of this patent three-dimensional, face, the A-A cross-sectional schematic.Melten glass enters into the grooving of forming brick from the inlet tube 901 of forming brick 90, grooving is made of groove bottom 902, both walls 903a and the 903b that certain curve form requires, forming brick also has the middle supporter 906 along its length of V-type body 904, entrance end molectron 905a, far-end molectron 905b and the forming brick of two plane of symmetry 904a and 904b to constitute, and these structures are structure as a whole.Inlet tube 901 is in entrance end molectron 905a, guide wall 907a and the bearing surface 908a that is used to support forming brick that melten glass is arranged on entrance end molectron 905a, guide wall 907b and the bearing surface 908b that is used to support forming brick that melten glass is arranged on far-end molectron 905, bearing surface 908a and 908b are placed in entrance end respectively and support on brick 911a and the far-end support brick 911b, the root of V-type body 904 is 909, one raised body 910 is arranged at the top of supporter 906, supporter 906 extends to the outside of forming brick periphery seal stove, use certain clamp clamps bulge-structure 910 backs to link to each other with the closed furnace support steel structure, the mating surface of this raised body and anchor clamps is a circular arc.The closed furnace support steel structure is thought constant body.Melten glass enters into the grooving of forming brick from the inlet tube 801 of forming brick 80, flow downward after overflowing from the top of 803a and 803b then, behind two plane of symmetry 804a of V-type body and 804b, root 809 places at V-type body 804 merge into a sheet glass, through drawing, chilling, annealing are configured as sheet glass again.The purpose of guide wall 807a, 807b on forming brick 80 two ends molectron 805a, the 805b is the width that guarantees the glass of overflow.This embodiment uses certain clamp clamps bulge-structure 910 with the different supporters 906 that are of the embodiment that Fig. 8 shows, is fixed on the closed furnace support steel structure again.
As Figure 10 a, 10b, 10c be shown another embodiment of this patent three-dimensional, face, the A-A cross-sectional schematic.Melten glass enters into the grooving of forming brick from the inlet tube 1001 of forming brick 100, grooving is made of groove bottom 1002, both walls 1003a and the 1003b that certain curve form requires, forming brick also has the middle supporter 1006 along its length of V-type body 1004, entrance end molectron 1005a, far-end molectron 1005b and the forming brick of two plane of symmetry 1004a and 1004b to constitute, and these structures are structure as a whole.Inlet tube 1001 is in entrance end molectron 1005a, guide wall 1007a and the bearing surface 1008a that is used to support forming brick that melten glass is arranged on entrance end molectron 1005a, guide wall 1007b and the bearing surface 1008b that is used to support forming brick that melten glass is arranged on far-end molectron 1005, bearing surface 1008a and 1008b are placed in entrance end respectively and support on brick 1011a and the far-end support brick 1011b, the root of V-type body 1004 is 1009, bulge-structure 1010 is arranged at the top of supporter 1006, the bulge-structure 1010 of supporter 1006 extends to the outside of forming brick periphery seal stove, uses certain clamp clamps bulge-structure 1010 to be fixed by the closed furnace support steel structure.The closed furnace support steel structure is thought constant body.Melten glass enters into the grooving of forming brick from the inlet tube 1001 of forming brick 100, flow downward after overflowing from the top of 1003a and 1003b then, behind two plane of symmetry 1004a of V-type body and 1004b, root 1009 places at V-type body 1004 merge into a sheet glass, through drawing, chilling, annealing are configured as sheet glass again.The purpose of guide wall 1007a, 1007b on forming brick 100 two ends molectron 1005a, the 1005b is the width that guarantees the glass of overflow.This embodiment is that with the different of embodiment that Fig. 9 shows the cross section of supporter 1006 upper lobes structures 1010 is trapezoidal.
As Figure 11 a, 11b, 11c be shown another embodiment of this patent three-dimensional, face, the A-A cross-sectional schematic.Melten glass enters into the grooving of forming brick from the inlet tube 1101 of forming brick 110, grooving is made of groove bottom 1102, both walls 1103a and the 1103b that certain curve form requires, forming brick also has the middle supporter 1106 along its length of V-type body 1104, entrance end molectron 1105a, far-end molectron 1105b and the forming brick of two plane of symmetry 1104a and 1104b to constitute, and these structures are structure as a whole.Inlet tube 1101 is in entrance end molectron 1105a, guide wall 1107a and the bearing surface 1108a that is used to support forming brick that melten glass is arranged on entrance end molectron 1105a, guide wall 1107b and the bearing surface 1108b that is used to support forming brick that melten glass is arranged on far-end molectron 1105, bearing surface 1108a and 1108b are placed in entrance end respectively and support on brick 1111a and the far-end support brick 1111b, the root of V-type body 1104 is 1109, bulge-structure 1110 is arranged at the top of supporter 1106, the bulge-structure 1110 of supporter 1106 extends to the outside of forming brick periphery seal stove, uses certain clamp clamps bulge-structure 1110 to be fixed by the closed furnace support steel structure.The closed furnace support steel structure is thought constant body.Melten glass enters into the grooving of forming brick from the inlet tube 1101 of forming brick 1100, flow downward after overflowing from the top of 1103a and 1103b then, behind two plane of symmetry 1104a of V-type body and 1104b, root 1109 places at V-type body 1104 merge into a sheet glass, through drawing, chilling, annealing are configured as sheet glass again.The purpose of guide wall 1107a, 1107b on forming brick 1100 two ends molectron 1105a, the 1105b is the width that guarantees the glass of overflow.This embodiment is that with the different of embodiment that Fig. 9 shows the cross section of the upper lobes structure 1110 of supporter 1106 is "T"-shaped.
Figure 12 a, 12b are three-dimensional, the front elevational schematic of another embodiment of this patent.It has several windows with different being of Figure 11 embodiment on its supporter 1206, and its temperature that is used for making closed furnace inner supporting body both sides is uniformity more.
As Figure 13 a, 13b, 13c be shown another embodiment of this patent three-dimensional, face, the A-A cross-sectional schematic.Melten glass enters into the grooving of forming brick from the inlet tube 1301 of forming brick 130, grooving is made of groove bottom 1302, both walls 1303a and the 1303b that certain curve form requires, forming brick also has the middle supporter 1306 along its length of V-type body 1304, entrance end molectron 1305a, far-end molectron 1305b and the forming brick of two plane of symmetry 1304a and 1304b to constitute, and these structures are structure as a whole.Inlet tube 1301 is in entrance end molectron 1305a, guide wall 1307a and the bearing surface 1308a that is used to support forming brick that melten glass is arranged on entrance end molectron 1305a, guide wall 1307b and the bearing surface 1308b that is used to support forming brick that melten glass is arranged on far-end molectron 1305, bearing surface 1308a and 1308b are placed in entrance end respectively and support on brick 1311a and the far-end support brick 1311b, the root of V-type body 1304 is 1309, bulge-structure 1310 is arranged at the top of supporter 1306, the bulge-structure 1310 on supporter 1306 tops extends to the outside of forming brick periphery seal stove, uses certain clamp clamps bulge-structure 1310 backs to be fixed by the closed furnace support steel structure.The closed furnace support steel structure is thought constant body.Melten glass enters into the grooving of forming brick from the inlet tube 1301 of forming brick 1300, flow downward after overflowing from the top of 1303a and 1303b then, behind two plane of symmetry 1304a of V-type body and 1304b, root 1309 places at V-type body 1304 merge into a sheet glass, through drawing, chilling, annealing are configured as sheet glass again.The purpose of guide wall 1307a, 1307b on forming brick 130 two ends molectron 1305a, the 1305b is the width that guarantees the glass of overflow.This embodiment is not that grooving is divided into two groovings fully with the different supporters 1306 that are of the embodiment that Figure 11 shows, but is positioned at the interlude of grooving.
Be shown three-dimensional, the front elevational schematic of another embodiment of this patent as Figure 14 a, 14b.This embodiment is not that grooving is divided into two groovings fully with the different supporters 1406 that are of the embodiment that Figure 11 shows, but supporter is divided into 1406a, 1406b, 1406c three parts.Help the make peace unanimity of glass liquid level in the overflow groove of one of temperature in the closed furnace so better.
The operable material of forming brick among the embodiment is resistant to elevated temperatures refractory materials, as high alumina brick, sintering zircon brick, indefinite shaped brick etc., also can use resistant to elevated temperatures metal such as molybdenum, platinum etc.
Embodiment in the cumulated volume patent, an one main principle is that the forming brick in this patent is middle a supporter, and they are structure as a whole.This supporter is divided into four classes: the first kind installs and fixes the hole for supporter top, the embodiment that shows as Fig. 6 and Fig. 8; Second class is that clamp clamps supporter upper lobes structure is used on top, as the embodiment that shows among Fig. 9, Figure 10, Figure 11; The 3rd class is that the ventilation window that makes the right and left closed furnace temperature uniformity is arranged on the supporter, shows as Figure 12; The 4th class is that supporter is positioned at middle a certain section of grooving, not fully with the grooving separated into two parts, shows as Figure 13, Figure 14.
Though enumerated the cross-sectional shape of its upper lobes structure in this patent is rectangular parallelepiped, T shape, trilateral, ventilation cavity on the supporter is a rectangle, mounting means has open holes, anchor clamps installation etc. for supporter top, but the arbitrary combination that the cross-sectional shape of other mounting means, supporter bulge-structure, ventilation window shape and this four class are given an example is also contained in this patent.
Claims (1)
1. one kind is used for the forming brick that downward press over system is produced sheet glass, and this forming brick comprises: inlet tube, and it is used for transferring of molten glass; Be used to accept the grooving of melten glass, this groove is by the body of wall on both sides and have the bottom surface of certain curve form to constitute; V-type body structure, melten glass flow downward after overflowing from the grooving both sides, converge into a sheet glass at the root melten glass of V-type body; The inlet end molectron comprises inlet end guide wall and forming brick inlet end bearing surface; The exit end molectron, it comprises exit end guide wall and forming brick exit end bearing surface, it is characterized in that: a supporter is arranged in the middle of the grooving of forming brick along its length, this supporter and forming brick are structure as a whole, the supporter of this forming brick is divided into two independently cell bodies to grooving, and a bulge-structure is arranged at the supporter top of this forming brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101283592A CN1994944B (en) | 2006-12-11 | 2006-12-11 | Forming brick |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101283592A CN1994944B (en) | 2006-12-11 | 2006-12-11 | Forming brick |
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| Publication Number | Publication Date |
|---|---|
| CN1994944A CN1994944A (en) | 2007-07-11 |
| CN1994944B true CN1994944B (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006101283592A Expired - Fee Related CN1994944B (en) | 2006-12-11 | 2006-12-11 | Forming brick |
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| CN (1) | CN1994944B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013032885A1 (en) * | 2011-08-31 | 2013-03-07 | Corning Incorporated | Ceramic forming devices with a honeycomb structure and methods |
| CN110845121B (en) * | 2019-11-20 | 2022-06-07 | 成都中光电科技有限公司 | Overflow brick structure suitable for high-temperature creep |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1496441A1 (en) * | 1964-05-06 | 1969-04-03 | Corning Glass Works | Method and device for the production of plate and sheet material |
| WO2004069757A2 (en) * | 2003-02-04 | 2004-08-19 | Pitbladdo Richard B | Sheet glass forming apparatus |
| CN1604876A (en) * | 2001-12-21 | 2005-04-06 | 康宁股份有限公司 | Process for producing sheet glass by the overflow downdraw fusion process |
| WO2005121182A2 (en) * | 2004-06-02 | 2005-12-22 | Corning Incorporated | Glass sheet forming apparatus |
-
2006
- 2006-12-11 CN CN2006101283592A patent/CN1994944B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1496441A1 (en) * | 1964-05-06 | 1969-04-03 | Corning Glass Works | Method and device for the production of plate and sheet material |
| CN1604876A (en) * | 2001-12-21 | 2005-04-06 | 康宁股份有限公司 | Process for producing sheet glass by the overflow downdraw fusion process |
| WO2004069757A2 (en) * | 2003-02-04 | 2004-08-19 | Pitbladdo Richard B | Sheet glass forming apparatus |
| WO2005121182A2 (en) * | 2004-06-02 | 2005-12-22 | Corning Incorporated | Glass sheet forming apparatus |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-298736A 2006.11.02 |
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| CN1994944A (en) | 2007-07-11 |
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