CN115959826A - Glass fiber manufacturing device and glass fiber manufacturing method - Google Patents
Glass fiber manufacturing device and glass fiber manufacturing method Download PDFInfo
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- CN115959826A CN115959826A CN202211188859.0A CN202211188859A CN115959826A CN 115959826 A CN115959826 A CN 115959826A CN 202211188859 A CN202211188859 A CN 202211188859A CN 115959826 A CN115959826 A CN 115959826A
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 79
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 47
- 239000006060 molten glass Substances 0.000 claims abstract description 46
- 239000011521 glass Substances 0.000 claims description 44
- 238000007380 fibre production Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000008646 thermal stress Effects 0.000 description 11
- 238000005336 cracking Methods 0.000 description 9
- 239000011449 brick Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910001260 Pt alloy Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000629 Rh alloy Inorganic materials 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- Manufacture, Treatment Of Glass Fibers (AREA)
- Inorganic Fibers (AREA)
Abstract
The invention provides a glass fiber manufacturing device and a glass fiber manufacturing method, which can stably form glass fibers. A glass fiber manufacturing device (11) of the present invention comprises: a feeder (12) through which molten glass is circulated; and a bushing (13) disposed below the feeder (12) and having a plurality of nozzles (N) through which molten glass flows. A feeder (12) of a glass fiber manufacturing device (11) comprises a bottom wall (W1) and a pair of side walls (W2) arranged on both sides of the bottom wall (W1). The bottom wall (W1) of the feeder (12) is provided with an outflow part (15) for allowing the molten glass to flow downward. The outflow portion (15) of the bottom wall (W1) has a refractory wall (16) and a flow path (17) surrounded by the refractory wall. The refractory wall (16) of the outflow section (15) has a dividing section (16 a) that divides the refractory wall (16) into a plurality of refractory members (B) in a plan view.
Description
Technical Field
The present invention relates to a glass fiber manufacturing apparatus and a glass fiber manufacturing method.
Background
As described in patent document 1, a manufacturing apparatus including a feeder for flowing molten glass and a bushing disposed below the feeder and having a plurality of nozzles through which the molten glass flows out can be used for manufacturing glass fibers. In such a glass fiber manufacturing apparatus, a plurality of glass filaments can be formed by flowing molten glass out of each nozzle of the bushing.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2012-091954
Disclosure of Invention
Problems to be solved by the invention
The feeder of the conventional apparatus for producing glass fibers includes a bottom wall and a pair of side walls provided on both sides of the bottom wall. The bottom wall of the feeder is provided with an outflow part which causes the molten glass to flow downwards. The outflow portion has a refractory wall and a flow path surrounded by the refractory wall. When the refractory wall of the outflow portion is brought into contact with molten glass and the temperature thereof is increased, the refractory wall may be broken by thermal expansion. Therefore, relatively small fragments generated by the breakage of the refractory wall of the outflow portion may flow into the bushing, and the glass filaments may be formed unstably.
The invention aims to provide a glass fiber manufacturing device and a glass fiber manufacturing method, which can stably form glass fibers.
Means for solving the problems
The manufacturing installation of glass fiber to solve the above-mentioned subject, it possesses feeder and bush; the feeder allows molten glass to flow; the bushing is disposed below the feeder and has a plurality of nozzles through which the molten glass flows out; the feeder is provided with a bottom wall and a pair of side walls arranged on two sides of the bottom wall; the bottom wall of the feeder includes an outflow portion for allowing the molten glass to flow downward; the outflow portion has a refractory wall and a flow path surrounded by the refractory wall; the refractory wall has a dividing portion that divides the refractory wall into a plurality of refractory members in a plan view. According to this configuration, when the refractory wall of the outflow portion thermally expands, the thermal stress of the refractory wall of the outflow portion can be released by the relative movement of the plurality of refractory members constituting the outflow portion. This can suppress the occurrence of cracking of the refractory wall of the outflow portion.
The glass fiber manufacturing apparatus may be: the peripheral edge portion of the refractory wall is formed of a plurality of frame portions including linear portions in a plan view. With this configuration, the refractory wall can be formed by a frame portion having a simple shape, for example.
The glass fiber manufacturing apparatus may include: at least one of the plurality of frame portions has a pair of the dividing portions, and the dividing portions are adjacent to each other so as to be closer to each other inward in a plan view. According to this configuration, when the refractory wall of the outflow portion thermally expands, the refractory member between the pair of divided portions can be suppressed from moving relatively toward the inside of the outflow portion. In this way, for example, the problem of the flow path of the outflow portion becoming narrow due to relative movement of the refractory member between the pair of divided portions can be avoided.
The glass fiber manufacturing apparatus may be: at least one of the plurality of frame portions has a pair of the dividing portions, and the dividing portions are adjacent to each other so as to be closer to each other downward in a side view. According to this configuration, when the refractory wall of the outflow portion thermally expands, the refractory member between the pair of divided portions can be suppressed from moving relatively downward of the outflow portion. In this way, the refractory member between the pair of divided portions can be easily prevented from falling off.
The glass fiber manufacturing apparatus may include: the pair of divided portions each have a shape extending linearly, and an angle formed by the pair of divided portions is in a range of 5 ° to 90 °. When the angle formed by the pair of divided portions is 5 ° or more in a plan view, the relative movement of the refractory member to the inside of the outflow portion can be further suppressed. When the angle formed by the pair of divided portions is 5 ° or more in a side view, the refractory member can be further suppressed from moving downward relative to the refractory member. When the angle formed by the pair of divided portions is 90 ° or less in the plan view and the side view of the refractory wall, for example, the processing of the refractory material for forming the refractory wall can be facilitated.
The glass fiber manufacturing apparatus may be: the plurality of frame portions each have 1 or more of the dividing portions. According to this configuration, thermal stress generated in the plurality of frame portions can be uniformly released. Thus, the occurrence of cracking of the refractory wall of the outflow portion can be further suppressed.
The glass fiber manufacturing apparatus may be: the refractory members of the refractory wall include a pair of 1 st refractory members and a 2 nd refractory member disposed between the pair of 1 st refractory members. According to this configuration, thermal stress generated in the refractory wall can be easily released. Thus, the occurrence of cracking of the refractory wall of the outflow portion can be further suppressed.
The glass fiber manufacturing apparatus may be: the upper surface of the 2 nd refractory member protrudes upward from the upper surfaces of the pair of 1 st refractory members. In this way, for example, the thermal stress of the refractory wall can be released by moving the 2 nd refractory member upward relative to the pair of 1 st refractory members.
The glass fiber manufacturing apparatus may include: a downstream flow path portion for supplying the molten glass from the feeder to the bushing; the downstream flow path section has a downstream refractory wall and a downstream flow path surrounded by the downstream refractory wall; the downstream-side refractory wall includes a downstream-side dividing portion that divides the downstream-side refractory wall into a plurality of downstream-side refractory members in a plan view. According to this configuration, when the downstream side refractory wall of the downstream side flow path portion thermally expands, the thermal stress of the downstream side refractory wall of the downstream side flow path portion can be released by the relative movement of the plurality of downstream side refractory members constituting the downstream side flow path portion. Thus, the downstream side refractory wall can be inhibited from cracking.
A method for producing glass fibers, which solves the above problems, comprises a forming step for forming a plurality of glass filaments by using a glass fiber production device; the glass fiber manufacturing apparatus includes a feeder and a bushing; the feeder allows molten glass to flow; the bushing is disposed below the feeder and has a plurality of nozzles through which the molten glass flows out; the feeder is provided with a bottom wall and a pair of side walls arranged on two sides of the bottom wall; the bottom wall of the feeder includes an outflow portion that causes the molten glass to flow downward; the outflow portion has a refractory wall and a flow path surrounded by the refractory wall; the refractory wall has a dividing portion that divides the refractory wall into a plurality of refractory members in a plan view.
Effects of the invention
The glass filaments can be stably formed according to the present invention.
Drawings
Fig. 1 is an exploded perspective view showing a glass fiber manufacturing apparatus according to an embodiment.
FIG. 2 is a sectional view showing an apparatus for producing glass fibers.
FIG. 3 is a sectional view showing an apparatus for producing glass fibers.
Fig. 4 is a plan view showing the outflow portion of the feeder.
Fig. 5 is a side view showing the outflow portion of the feeder.
Fig. 6 is a plan view showing the downstream flow path portion.
Fig. 7 is a plan view showing an outflow portion of a feeder according to a modification.
Fig. 8 is an exploded perspective view showing a modified glass fiber manufacturing apparatus.
Detailed Description
Hereinafter, an embodiment of a glass fiber manufacturing apparatus and a glass fiber manufacturing method will be described with reference to the drawings. In the drawings, a part of the structure may be exaggerated or simplified for convenience of description. Further, the dimensional ratio of each portion may be different from the actual one.
As shown in fig. 1 to 3, a glass fiber manufacturing apparatus 11 includes a feeder 12 through which molten glass MG flows, and a bushing 13 disposed below the feeder 12. The apparatus 11 for producing glass fibers according to the present embodiment further includes a downstream flow path portion 14, and the downstream flow path portion 14 supplies the molten glass MG from the feeder 12 to the bushing 13.
< feeder 12 >
The feeder 12 of the glass fiber manufacturing apparatus 11 supplies molten glass MG manufactured by a glass melting furnace not shown.
The feeder 12 has a bottom wall W1 and a pair of side walls W2 provided on both sides of the bottom wall W1. Feeder 12 may also have an upper wall W3, with upper wall W3 being configured to close the upper opening. The feeder 12 circulates the molten glass MG along the Y-axis direction in the figure.
The feeder 12 is constituted by refractory walls. Examples of the refractory material constituting the refractory wall include an electroformed brick and a dense baked brick. Examples of the electroformed bricks include zirconia-based electroformed bricks, alumina-zirconia-silica-based electroformed bricks, and the like. Examples of the dense sintered bricks include dense zirconium bricks, dense chromium bricks and the like
The bottom wall W1 of the feeder 12 includes an outflow portion 15, and the outflow portion 15 causes the molten glass MG to flow downward. The outflow portion 15 has a refractory wall 16 and a flow passage 17 surrounded by the refractory wall 16.
As shown in fig. 4, the refractory wall 16 of the outflow portion 15 is formed of a plurality of frame portions F1. The peripheral edge of each frame F1 includes a linear portion in a plan view. The refractory wall 16 of the outflow portion 15 in the present embodiment has a quadrangular shape and has 4 frame portions F1.
The refractory wall 16 of the outflow portion 15 has a dividing portion 16a, and the dividing portion 16a divides the refractory wall 16 into a plurality of refractory members B in a plan view. The refractory wall 16 of the outflow portion 15 in the present embodiment has 4 frame portions F1 each having 1 or more divided portions 16a. Specifically, each of the pair of frame portions F1 extending in the X-axis direction has 1 divided portion 16a. Each of the pair of frame portions F1 extending in the Y-axis direction has 3 divided portions 16a.
The refractory members B of the refractory wall 16 in the outflow portion 15 include a pair of 1 st refractory members B1 and 2 nd refractory members B2 arranged between the pair of 1 st refractory members B1. As shown in fig. 4 and 5, each of the pair of frame portions F1 extending in the Y-axis direction includes 2 nd refractory members B2.
As shown in fig. 4, the 2 nd refractory members B2 are disposed between the pair of divided portions 16a, and are adjacent to each other so as to be closer to each other inward in a plan view. The shape of each of the pair of divided portions 16a is preferably a shape extending linearly in a plan view. In a plan view, the angle θ 1 formed by the linearly extending dividing portion 16a is preferably in the range of 5 ° to 90 °. The shape of the pair of divided parts 16a may be curved or stepped in a plan view. The dividing portion 16a between the 2 nd refractory members B2 adjacent to each other extends parallel to the X axis.
As shown in fig. 5, the 2 nd refractory members B2 are disposed between the pair of divided portions 16a, and are adjacent to each other so as to be closer to each other downward in a side view. The shape of each of the pair of divided portions 16a in the side view is preferably a linearly extending shape. In a side view, an angle θ 2 formed by the pair of divided portions 16a having a shape extending linearly is preferably in a range of 5 ° or more and 90 ° or less. In the side view, the shape of the pair of divided parts 16a may be curved or stepped. The dividing portion 16a between the 2 nd refractory members B2 adjacent to each other extends parallel to the Z axis.
The 1 ST refractory member B1 of the outflow portion 15 of the feeder 12 is supported by a structure ST at the installation site of the glass fiber manufacturing apparatus 11. The 2 nd refractory member B2 is supported by the pair of 1 st refractory members B1. The flow path 17 of the outflow portion 15 causes the molten glass MG to flow down along the Z-axis direction in the figure.
Examples of the molten glass MG supplied by the feeder 12 include E glass (glass having an alkali content of 2% or less), D glass (low dielectric constant glass), AR glass (alkali-resistant glass), C glass (acid-resistant glass), M glass (glass having a high elastic constant), S glass (glass having a high strength and a high elastic constant), T glass (glass having a high strength and a high elastic constant), H glass (glass having a high dielectric constant), and NE glass (glass having a low dielectric constant). The density of the glass is, for example, 2.0 to 3.0g/cm 3 。
< bushing 13 >
As shown in fig. 1 to 3, the bushing 13 of the glass fiber manufacturing apparatus 11 has a plurality of nozzles N through which molten glass MG flows out. The glass filaments GF are formed by the nozzles N of the bushing 13.
The bushing 13 includes a bushing body 13a for supplying the molten glass MG and a bottom plate 13b provided at the bottom of the bushing body 13 a. The bushing main body 13a has a supply port at an upper portion thereof, and the supply port supplies molten glass MG from the feeder 12. As shown in fig. 3, the bushing 13 is supported by a support member S on a structure ST provided in the glass fiber manufacturing apparatus 11. In fig. 1, the support member S is omitted.
The bushing body 13a may have a mesh for suppressing accumulation of impurities on the bottom plate 13b, a terminal for energization, and the like.
As shown in fig. 1 to 3, the bottom plate 13b is provided with a plurality of nozzles N. The number of nozzle holes in the liner 13 is preferably in the range of 100 or more and 10000 or less. The shape of the nozzle hole in each nozzle N of the liner 13 may be, for example, a circular shape, a flat shape having a long diameter and a short diameter, or the like.
Examples of the material of the liner main body 13a, the bottom plate 13b, and the nozzle N include a noble metal or a noble metal alloy. The noble metal is gold, silver, platinum, palladium, rhodium, iridium, ruthenium or osmium. From the viewpoint of enhancing durability, the material of the liner main body 13a, the bottom plate 13b, and the nozzle N is preferably platinum or a platinum alloy. Examples of the platinum alloy include platinum-rhodium alloys.
< downstream flow path part 14 >
As shown in fig. 1 to 3, the downstream flow path portion 14 of the apparatus 11 for producing glass fibers includes a downstream refractory wall 18 and a downstream flow path 19 surrounded by the downstream refractory wall 18.
The downstream side refractory wall 18 has a downstream side dividing portion 18a, and the downstream side dividing portion 18a divides the downstream side refractory wall 18 into a plurality of downstream side refractory members C in a plan view. The downstream side refractory wall 18 may be made of refractory. The refractory constituting the downstream side refractory wall 18 may be the refractory exemplified in the description of the feeder 12.
As shown in fig. 6, the downstream side refractory wall 18 of the downstream side flow path portion 14 is formed of a plurality of frame portions F2. The peripheral edge of each frame F2 includes a linear portion in a plan view. The downstream side refractory wall 18 of the downstream side flow path portion 14 in the present embodiment has a quadrangular shape and has 4 frame portions F2. Each of the pair of frame portions F2 extending in the Y axis direction has 1 downstream side dividing portion 18a.
The downstream side flow passage 19 of the downstream side flow passage section 14 communicates with the flow passage 17 of the outflow section 15. The downstream flow path 19 of the downstream flow path portion 14 causes the molten glass MG to flow down in the Z-axis direction in the drawing, and supplies the molten glass MG to the bushing 13. The size of the flow channel 17 of the outflow portion 15 in a plan view is preferably the same as the size of the downstream flow channel 19 of the downstream flow channel portion 14 in a plan view.
< composition other than the above >
The glass fiber manufacturing apparatus 11 includes an applicator and a bundling device, not shown. The applicator applies a liquid-like sizing agent to the plurality of glass filaments GF drawn out from the liner 13. The buncher bunches a plurality of glass filaments GF coated with a bunching agent. The glass strands are obtained by bundling a plurality of glass filaments GF by a bundling machine. The glass strand was wound by a winding device to obtain a cake with the glass strand wound thereon.
< method for producing glass fiber >
Next, the main functions of the method and apparatus 11 for producing glass fibers will be described.
The method for producing glass fibers includes a forming step of forming glass filaments GF using a glass fiber production apparatus 11. In the forming step, molten glass MG is supplied from feeder 12 to bushing 13. The flow path of the molten glass MG leading from the feeder 12 to the bushing 13 and the inside of the bushing main body 13a of the bushing 13 are filled with the molten glass MG. In the forming step, the molten glass MG supplied through the bushing 13 flows out from the nozzle N of the bushing 13 to form the glass filaments GF.
The bottom wall W1 of the feeder 12 in the apparatus 11 for producing glass fibers is provided with an outflow portion 15, and the outflow portion 15 causes the molten glass MG to flow downward. The outflow portion 15 has a refractory wall 16 and a flow path 17 surrounded by the refractory wall 16; the refractory wall 16 has a dividing portion 16a, and the dividing portion 16a divides the refractory wall 16 into a plurality of refractory members B in a plan view. According to this configuration, when the refractory wall 16 of the outflow portion 15 thermally expands, the thermal stress of the refractory wall 16 of the outflow portion 15 can be released by the relative movement of the plurality of refractory members B constituting the outflow portion 15. This can suppress the occurrence of cracking of the refractory wall 16 of the outflow portion 15.
For example, as shown in fig. 4, in the outflow portion 15 of the feeder 12 in the present embodiment, at least one of the frame portions F1 has a pair of divided portions 16a, and the pair of divided portions 16a are adjacent to each other so as to be closer to each other as they go inward in a plan view. At this time, when the refractory wall 16 of the outflow portion 15 thermally expands, the 2 nd refractory member B2 between the pair of divided portions 16a can be suppressed from relatively moving toward the inside of the outflow portion 15. In this way, for example, the problem of narrowing the flow path 17 of the outflow portion 15 due to the 2 nd refractory member B2 between the pair of divided portions 16a can be avoided. In the outflow portion 15 of the present embodiment, the side surface of the 2 nd refractory member B2 located between the pair of 1 st refractory members B1 may also protrude laterally from the side surfaces of the pair of 1 st refractory members B1.
For example, as shown in fig. 5, in the outflow portion 15 of the feeder 12 in the present embodiment, at least one of the frame portions F1 has a pair of divided portions 16a, and the pair of divided portions 16a are adjacent to each other so as to be closer to each other downward in a side view. At this time, when the refractory wall 16 of the outflow portion 15 thermally expands, the 2 nd refractory member B2 between the pair of divided portions 16a can be suppressed from relatively moving downward of the outflow portion 15. In this way, the 2 nd refractory member B2 between the pair of divided portions 16a can be easily prevented from falling off. In the outflow portion 15 of the present embodiment, the upper surface of the 2 nd refractory member B2 positioned between the pair of 1 st refractory members B1 may also protrude upward from the upper surfaces of the pair of 1 st refractory members B1.
The glass yarn GF obtained in the above-described forming step is bundled to obtain a glass strand. Glass strands can be utilized as, for example, chopped strand mats (chopped strands) that are cut to specific lengths. Further, the glass strand can be utilized as a ground fiber, roving, yarn, mat, cloth, tape, set cloth, or the like. Examples of the use of the glass strand include vehicle use, electronic material use, building material use, civil engineering use, aircraft use, shipbuilding use, logistics use, industrial machine use, and commodity use.
< action and Effect >
Next, the operation and effects of the embodiment will be described.
(1) The glass fiber manufacturing apparatus 11 includes a feeder 12 and a bushing 13, wherein the feeder 12 allows molten glass MG to flow therethrough; the bushing 13 is disposed below the feeder 12, and has a plurality of nozzles N through which the molten glass MG flows out. The feeder 12 of the apparatus 11 for producing glass fibers has a bottom wall W1 and a pair of side walls W2 provided on both sides of the bottom wall W1. The bottom wall W1 of the feeder 12 includes an outflow portion 15, and the outflow portion 15 causes the molten glass MG to flow downward. The outflow portion 15 of the feeder 12 has a refractory wall 16 and a flow path 17 surrounded by the refractory wall 16. The refractory wall 16 of the outflow portion 15 has a dividing portion 16a, and the dividing portion 16a divides the refractory wall 16 into a plurality of refractory members B in a plan view.
According to this configuration, when the refractory wall 16 of the outflow portion 15 thermally expands, the thermal stress of the refractory wall 16 of the outflow portion 15 can be released by the relative movement of the plurality of refractory members B constituting the outflow portion 15. This can suppress the occurrence of cracking in the refractory wall 16 of the outflow portion 15. Therefore, the glass filaments GF can be stably formed.
(2) The refractory wall 16 of the outflow portion 15 in the apparatus for producing glass fibers 11 has a peripheral edge portion formed of a plurality of frame portions F1 including straight portions in a plan view. In this case, the refractory wall 16 can be constituted by the frame F1 having a simple shape, for example.
(3) Two of the frame portions F1 of the refractory wall 16 of the outflow portion 15 in the apparatus for producing glass fibers 11 have a pair of divided portions 16a, and the pair of divided portions 16a are adjacent to each other so as to be closer to each other as viewed from inside in plan view. In this case, as described above, for example, the problem of narrowing the flow path 17 of the outflow portion 15 by the 2 nd refractory member B2 between the pair of divided portions 16a can be avoided.
(4) In the apparatus for producing glass fibers 11, two of the frame portions F1 of the refractory wall 16 of the outflow portion 15 have a pair of divided portions 16a, and the pair of divided portions 16a are adjacent to each other so as to be closer to each other toward the lower side in a side view. In this case, as described above, the 2 nd refractory member B2 between the pair of divided portions 16a can be easily prevented from falling off. Therefore, for example, a support portion for supporting the 2 nd refractory member B2 between the pair of divided portions 16a can be omitted, and the structure of the feeder 12 can be further simplified.
(5) The glass fiber manufacturing apparatus 11 is preferably: the pair of divided portions 16a each have a linearly extending shape, and the angles θ 1 and θ 2 formed by the pair of divided portions 16a are in the range of 5 ° to 90 °. When the angle θ 1 formed by the pair of divided portions 16a of the refractory wall 16 is 5 ° or more in a plan view, the relative movement of the 2 nd refractory member B2 to the inside of the outflow portion 15 can be further suppressed. When the angle θ 2 formed by the pair of divided portions 16a of the refractory wall 16 is 5 ° or more in a side view, the 2 nd refractory member B2 can be further suppressed from moving downward relatively. When the angles θ 1 and θ 2 formed by the pair of divided portions 16a of the refractory wall 16 are 90 ° or less in the plan view and the side view, the processing of the refractory material for forming the refractory wall 16 can be facilitated.
(6) In the refractory wall 16 of the outflow portion 15 in the apparatus for producing glass fibers 11, each of the 4 frame portions F1 has 1 or more divided portions 16a. At this time, the thermal stress generated in the 4 frame portions F1 can be released in a balanced manner. This can further suppress the occurrence of cracking of the refractory wall 16 of the outflow portion 15. Therefore, the glass filaments GF can be formed more stably.
(7) The refractory member B of the refractory wall 16 in the apparatus 11 for producing glass fibers includes a pair of 1 st refractory members B1 and a 2 nd refractory member B2 disposed between the pair of 1 st refractory members B1. In this case, the thermal stress generated in the refractory wall 16 can be easily released. This can further suppress the occurrence of cracking of the refractory wall 16 of the outflow portion 15. Therefore, the glass filaments GF can be formed more stably.
(8) The upper surface of the 2 nd refractory member B2 of the apparatus for producing glass fibers 11 protrudes upward from the upper surfaces of the pair of 1 st refractory members B1. In this way, for example, the thermal stress of the refractory wall 16 can be released by the 2 nd refractory member B2 moving upward relative to the pair of 1 st refractory members B1.
(9) The glass fiber manufacturing apparatus 11 further includes a downstream flow path portion 14, and the downstream flow path portion 14 supplies the molten glass MG from the feeder 12 to the bushing 13. The downstream flow path portion 14 includes a downstream refractory wall 18 and a downstream flow path 19 surrounded by the downstream refractory wall 18. The downstream-side refractory wall 18 has a downstream-side dividing portion 18a, and the downstream-side dividing portion 18a divides the downstream-side refractory wall 18 into a plurality of downstream-side refractory members C in a plan view. At this time, when the downstream side refractory wall 18 of the downstream side flow path section 14 thermally expands, the thermal stress of the downstream side refractory wall 18 of the downstream side flow path section 14 can be released by the relative movement of the plurality of downstream side refractory members C constituting the downstream side flow path section 14. This can suppress the downstream side refractory wall 18 from cracking. Therefore, the glass filaments GF can be formed more stably.
(modification example)
The above embodiment can be modified as follows. The above-described embodiments and the following modifications can be combined and implemented within a range not technically contradictory to each other.
In the outflow portion 15 of the apparatus for producing glass fibers 11, the thickness dimension of the 2 nd refractory member B2 may be the same as or different from the thickness dimension of the pair of 1 st refractory members B1. For example, the thickness dimension of the 2 nd refractory member B2 may be smaller than the thickness dimension of the pair of 1 st refractory members B1. In this case, the upper surfaces of the pair of 1 st refractory members B1 may protrude upward from the upper surface of the 2 nd refractory member B2, or may be arranged on the same plane as the upper surface of the 2 nd refractory member B2.
In the apparatus 11 for producing glass fibers, the number of the refractory members B constituting the refractory wall 16 of the outflow portion 15 may be 9 or more, or may be 7 or less. For example, as shown in fig. 7, the refractory wall 16 of the outflow portion 15 may be formed of 2 refractory members B.
For example, as shown in fig. 7, the flow-out portion 15 may have a divided portion 16a in 1 frame portion F1 among the frame portions F1 of the refractory wall 16.
The frame portion F1 of the refractory wall 16 of the outflow portion 15 includes a pair of divided portions 16a, and the pair of divided portions 16a are adjacent to each other so as to be closer to each other inward in a plan view and closer to each other downward in a side view. The extending direction of the pair of divided portions 16a adjacent to each other can be changed as appropriate. For example, the frame portion F1 of the refractory wall 16 of the outflow portion 15 may have a pair of divided portions extending in parallel in a plan view or a side view.
The refractory wall 16 of the outflow portion 15 may be formed of, for example, a cylindrical portion, instead of the plurality of frame portions F1.
The number of the frame portions F1 in the refractory wall 16 of the outflow portion 15 may be 3 or more, for example. Even in such a refractory wall 16, it is preferable that each of the plurality of frame portions F1 has 1 or more divided portions 16a. In this way, the actions and effects described in the above (6) can be obtained.
The downstream side refractory wall 18 of the glass fiber production apparatus 11 may be modified in the same manner as the refractory wall 16 of the outflow portion 15. For example, the downstream side refractory wall 18 is divided into 2 downstream side refractory members C, but may be divided into 3 or more downstream side refractory members C. In this case, like the refractory wall 16 of the outflow portion 15, each of the plurality of frame portions F2 may have 1 or more downstream dividing portions 18a.
The glass fiber manufacturing apparatus 11 may have a structure in which a plurality of downstream flow path portions 14 are stacked and arranged.
The downstream flow path section 14 of the glass fiber production apparatus 11 may be omitted. For example, the bushing 13 may be connected to the outflow portion 15 of the feeder 12 of the apparatus 11 for producing glass fibers. The outlet 15 of the feeder 12 of the apparatus 11 for producing glass fibers may be connected to the liner 13 by a flow path member other than the downstream flow path portion 14.
In the apparatus 11 for producing glass fibers according to the above embodiment, the outflow portion 15 of the feeder 12 is arranged such that: the longitudinal direction of the outflow portion 15 is along the flow direction of the molten glass MG in the feeder 12 (Y-axis direction in the drawing), but is not limited thereto. For example, as shown in fig. 8, the outflow portion 15 of the feeder 12 may be arranged as follows: the longitudinal direction of the outflow portion 15 is along a direction (X-axis direction in the drawing) perpendicular to the flow direction of the molten glass MG in the feeder 12. The direction in which the liner 13 and the downstream flow path portion 14 are arranged can be changed in accordance with the arrangement of the outflow portion 15.
Description of the reference numerals
11. Glass fiber manufacturing device
12. Feeding device
13. Bushing
14. Downstream side flow path part
15. Outflow part
16. Refractory wall
16a division part
17. Flow path
18. Downstream side refractory wall
18a downstream side dividing part
19. Downstream side flow path
B refractory member
B1 No. 1 refractory component
B2 No. 2 refractory component
C downstream side refractory member
F1, F2 frame part
GF glass yarn
MG molten glass
N nozzle
W1 bottom wall
W2 side wall
Angle theta 1 and angle theta 2
Claims (10)
1. A glass fiber manufacturing apparatus comprising a feeder and a bushing,
the feeder circulates the molten glass in a flow path,
the bushing is disposed below the feeder and has a plurality of nozzles through which the molten glass flows out,
the feeder has a bottom wall and a pair of side walls disposed on both sides of the bottom wall,
the bottom wall of the feeder is provided with an outflow part which allows the molten glass to flow downward,
the outflow portion has a refractory wall and a flow path surrounded by the refractory wall,
the refractory wall has a dividing portion that divides the refractory wall into a plurality of refractory members in a plan view.
2. The apparatus for producing glass fibers according to claim 1, wherein the peripheral edge portion of the refractory wall is composed of a plurality of frame portions including linear portions in a plan view.
3. The apparatus for producing glass fibers according to claim 2, wherein at least one of the plurality of frame portions has a pair of the divided portions, and the pair of the divided portions are adjacent to each other so as to be closer to each other inward in a plan view.
4. The apparatus for producing glass fibers according to claim 2 or claim 3, wherein at least one of the plurality of frame portions has a pair of the divided portions, and the pair of the divided portions are adjacent to each other so as to be closer to each other toward a lower side in a side view.
5. The apparatus for producing glass fibers according to claim 3, wherein the pair of divided portions each have a linearly extending shape, and an angle formed by the pair of divided portions is in a range of 5 ° or more and 90 ° or less.
6. The apparatus for producing glass fibers according to any one of claim 2, claim 3, and claim 5, wherein each of the plurality of frame portions has 1 or more of the divided portions.
7. The apparatus for producing glass fibers according to any one of claims 1 to 3 and 5, wherein the refractory members of the refractory wall include a pair of 1 st refractory members and a 2 nd refractory member disposed between the pair of 1 st refractory members.
8. The apparatus for manufacturing glass fibers according to claim 7, wherein the upper surface of the 2 nd refractory member protrudes upward from the upper surfaces of the pair of 1 st refractory members.
9. The apparatus for producing glass fibers according to any one of claims 1 to 3 and 5, further comprising a downstream flow path portion for supplying the molten glass from the feeder to the bushing,
the downstream flow path section has a downstream refractory wall and a downstream flow path surrounded by the downstream refractory wall,
the downstream side refractory wall includes a downstream side dividing portion that divides the downstream side refractory wall into a plurality of downstream side refractory members in a plan view.
10. A method for producing glass fibers, comprising a step of forming a plurality of glass filaments by using a glass fiber production apparatus,
the glass fiber manufacturing apparatus comprises a feeder and a bushing,
the feeder circulates the molten glass in a direction that is,
the bushing is disposed below the feeder and has a plurality of nozzles through which the molten glass flows out,
the feeder has a bottom wall and a pair of side walls disposed on both sides of the bottom wall,
the bottom wall of the feeder is provided with an outflow portion for allowing the molten glass to flow downward,
the outflow portion has a refractory wall and a flow path surrounded by the refractory wall,
the refractory wall has a dividing portion that divides the refractory wall into a plurality of refractory members in a plan view.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-167396 | 2021-10-12 | ||
| JP2021167396A JP2023057737A (en) | 2021-10-12 | 2021-10-12 | Apparatus and method for manufacturing glass fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115959826A true CN115959826A (en) | 2023-04-14 |
Family
ID=85903784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211188859.0A Pending CN115959826A (en) | 2021-10-12 | 2022-09-27 | Glass fiber manufacturing device and glass fiber manufacturing method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2023057737A (en) |
| CN (1) | CN115959826A (en) |
| TW (1) | TW202315847A (en) |
-
2021
- 2021-10-12 JP JP2021167396A patent/JP2023057737A/en active Pending
-
2022
- 2022-09-20 TW TW111135546A patent/TW202315847A/en unknown
- 2022-09-27 CN CN202211188859.0A patent/CN115959826A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| TW202315847A (en) | 2023-04-16 |
| JP2023057737A (en) | 2023-04-24 |
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