WO2019176255A1 - Procédé de fabrication d'un verre tubulaire et verre tubulaire - Google Patents

Procédé de fabrication d'un verre tubulaire et verre tubulaire Download PDF

Info

Publication number
WO2019176255A1
WO2019176255A1 PCT/JP2019/000655 JP2019000655W WO2019176255A1 WO 2019176255 A1 WO2019176255 A1 WO 2019176255A1 JP 2019000655 W JP2019000655 W JP 2019000655W WO 2019176255 A1 WO2019176255 A1 WO 2019176255A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube glass
laser
laser beam
irradiation
glass
Prior art date
Application number
PCT/JP2019/000655
Other languages
English (en)
Japanese (ja)
Inventor
太基 田中
和田　正紀
Original Assignee
日本電気硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Publication of WO2019176255A1 publication Critical patent/WO2019176255A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/50—Working by transmitting the laser beam through or within the workpiece
    • B23K26/53—Working by transmitting the laser beam through or within the workpiece for modifying or reforming the material inside the workpiece, e.g. for producing break initiation cracks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
    • 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
    • C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/09—Severing cooled glass by thermal shock
    • C03B33/095—Tubes, rods or hollow products

Definitions

  • the present invention relates to a method for manufacturing a tube glass including a cutting step, and the tube glass.
  • tube glass used for medical ampules, lighting fluorescent tubes, and the like is formed by various methods such as the Danner method and the downdraw method.
  • the outline will be described by taking the Danner method as an example.
  • molten glass is supplied to a rotatable sleeve disposed in a muffle furnace.
  • the supplied molten glass becomes tubular while being wound around a rotating sleeve.
  • the tube glass is continuously shape
  • the formed tube glass is cut to a required length by a cutting device to obtain a tube glass product having a predetermined length (see, for example, Patent Document 1).
  • a cutting method of the continuous tube glass by bringing a cutting blade into contact with the outer peripheral surface of the continuous tube glass that is continuously conveyed, a scratch is formed on the outer peripheral surface, and a thermal shock is applied to the scratch.
  • a method of cutting a continuous tube glass is generally employed (see, for example, Patent Document 2).
  • Patent Document 2 can be cut at a relatively high speed while conveying continuous tube glass, and can be easily incorporated into a production line.
  • the scratch formed on the outer peripheral surface of the continuous tube glass is propagated by thermal shock, it is difficult to stabilize the shape of the scratch that becomes the starting point of the crack. For this reason, the fracture surface (cut surface) of the tube glass becomes rough. Therefore, in the method of the same document, an additional cutting process is required to finish the fractured surface flat, resulting in an increase in man-hours.
  • a cleaning process is also required.
  • Patent Document 3 discloses a method capable of preventing the generation of glass powder and cutting the continuous tube glass at high speed.
  • laser light is irradiated inside the continuous tube glass, and cracks are generated inside the continuous tube glass due to multiphoton absorption that occurs in the irradiated region.
  • Stress is applied to the continuous tube glass, and the crack propagates in the circumferential direction inside the continuous tube glass due to the action of the stress.
  • the focal point F of the laser light L is set inside the continuous tube glass G1 conveyed along the longitudinal direction, and this focal point F is an irradiation start position along the circumferential direction of the continuous tube glass G1.
  • the laser beam L is scanned so as to move from the SP to the irradiation end position EP.
  • region C1 containing a 1 or several crack is formed in the irradiation area
  • the continuous tube glass G1 is conveyed in a state where a bending force is applied. For this reason, the crack contained in the internal crack area
  • region C1 progresses in the circumferential direction of the continuous tube glass G1 with the stress provided to the continuous tube glass G1.
  • a region where a crack propagates is referred to as a “crack propagation region” and is denoted by reference characters C2a and C2b.
  • the crack progress areas C2a and C2b are composed of a first crack progress area C2a that progresses from the irradiation start position SP side and a second crack progress area C2b that progresses from the irradiation end position EP side.
  • the laser beam L is scanned in one direction from the irradiation start position SP to the irradiation end position EP inside the continuous tube glass G1.
  • the first crack progress region C2a and the second crack progress region C2b have different degrees of progress (the first crack progress region C2a progresses faster), and as shown in FIG.
  • the first crack progress region C2a that progresses from the position 2 and the second crack progress region C2b that progresses from the irradiation end position EP side do not match at the merge position CP.
  • This invention is made
  • the present invention is for solving the above-described problem, and includes a cutting step.
  • the cutting step focuses on the inside of the tube glass and scans the laser beam from the irradiation start position. And a laser irradiation step for forming a crack due to multiphoton absorption, and a stress applying step for applying a stress to the tube glass so that the crack propagates in a circumferential direction of the tube glass.
  • the first laser beam and the second laser beam, and in the laser irradiation step, the first laser beam and the second laser beam are scanned away from the irradiation start position, Causing the crack formed by the first laser beam and the crack formed by the second laser beam to propagate in opposite directions in the circumferential direction of the tube glass. And butterflies.
  • the first laser beam and the second laser beam are scanned in two directions away from each other in the laser irradiation step.
  • the progress degree of the crack which progresses from the irradiation end position side of the first laser beam and the crack which progresses from the irradiation end position side of the second laser beam becomes equal.
  • the focal point of the first laser beam and the focal point of the second laser beam overlap at the irradiation start position.
  • the first laser beam and the second laser beam are scanned so as to be symmetric with respect to the central axis of the tube glass.
  • the present invention is to solve the above-mentioned problems, and is a tube glass having a laser irradiation trace on an end face, wherein the maximum width of the laser irradiation trace is 10 ⁇ m or more and 150 ⁇ m or less.
  • the present invention is for solving the above-mentioned problems, characterized in that it is a tube glass having a laser irradiation trace on its end face, and the maximum depth of the laser irradiation trace is 50 ⁇ m or more and 500 ⁇ m or less.
  • the present invention is for solving the above-mentioned problems, characterized in that it is a tube glass having a laser cut surface on an end surface, and the maximum step of the cut surface is 500 ⁇ m or less.
  • the quality of the cut surface of the tube glass in the cutting process can be improved.
  • FIG. 10 is a sectional view taken along line XX in FIG. 9. It is sectional drawing of the continuous tube glass at the time of completion
  • FIG. 1 to 11 show an embodiment of a method and apparatus for producing tube glass according to the present invention.
  • the manufacturing apparatus 1 forms a continuous tube glass G1 by the Danner method, and cuts the continuous tube glass G1 to manufacture a tube glass G2 having a predetermined length.
  • the manufacturing apparatus 1 includes a glass melting furnace 2, a sleeve 3, a driving device 4 that rotationally drives the sleeve 3, a muffle furnace 5 that accommodates the sleeve 3, an annealer 6, and a tube for drawing a continuous tube glass G ⁇ b> 1. It mainly includes a drawing device 7, a cutting device 8 for cutting the continuous tube glass G1, and a transport device 9 for transporting the tube glass G2 obtained by cutting the continuous tube glass G1.
  • the XYZ coordinate system is a fixed-side coordinate system.
  • a plane including the X axis and the Y axis is a horizontal plane, and a direction along the Z axis is a vertical direction (a positive Z axis).
  • the side is heaven and the negative side is the ground).
  • the xyz coordinate system is a coordinate system on the moving side (coordinate system on the continuous tube glass G1).
  • the plane including the x axis and the y axis is a horizontal plane and the direction along the z axis. Is the vertical direction.
  • the glass melting furnace 2 generates molten glass M by melting glass raw materials.
  • the glass melting furnace 2 supplies the molten glass M to the upper part of the sleeve 3 in the muffle furnace 5.
  • the sleeve 3 is formed in a cylindrical shape with a refractory material.
  • the sleeve 3 is partially tapered, and is arranged so that the small diameter side end portion 3a of the tapered portion faces obliquely downward.
  • the sleeve 3 is connected to the drive device 4 via the shaft 10.
  • the driving device 4 rotates the sleeve 3 to wind the molten glass M supplied onto the sleeve 3 into a cylindrical shape, and draws it into a tubular shape from the small diameter side end portion 3a.
  • the muffle furnace 5 is disposed below the glass melting furnace 2.
  • the muffle furnace 5 is composed of a refractory material.
  • the sleeve 3 is accommodated in the muffle furnace 5.
  • the annealer 6 is disposed on the downstream side of the muffle furnace 5.
  • the annealer 6 gradually cools the molten glass M drawn into a tubular shape.
  • the molten glass M formed into a tubular shape becomes a continuous tube glass G1 by passing through the annealer 6.
  • the tube drawing device 7 is arranged on the downstream side of the annealer 6.
  • the tube drawing device 7 pulls the continuous tube glass G ⁇ b> 1 that has passed through the annealer 6 at a constant speed and conveys it toward the cutting device 8.
  • the tube drawing device 7 is a continuous tube glass adjusted to have a predetermined outer diameter by pulling in a downstream direction while holding the upper and lower portions of the continuous tube glass G1 with a pair of conveying belts (not shown). G1 is supplied to the cutting device 8.
  • the cutting device 8 cuts the continuous tube glass G1 to form a tube glass G2 having a predetermined length dimension.
  • the thickness of the tube glass G2 in this embodiment is, for example, 0.5 to 2.0 mm, but is not limited to this range.
  • the cutting device 8 includes an internal crack region forming device 11 and a crack propagation device 12.
  • the internal crack region forming device 11 forms internal crack regions C1a and C1b including one or a plurality of cracks as shown in FIG. 6 to be described later in a part of the continuous tube glass G1 in the circumferential direction.
  • the crack propagation device 12 generates a stress in the continuous tube glass G1 that promotes the development of cracks in the internal crack regions C1a and C1b, and propagates the crack over the entire circumference of the continuous tube glass G1.
  • the internal crack region forming apparatus 11 includes a laser oscillator 14, a splitter 15, output adjustment units 16a and 16b, and scanners 17a and 17b.
  • the laser oscillator 14 emits laser light L (for example, picosecond pulse laser light or sub-picosecond pulse laser light) having a predetermined pulse width toward the splitter 15.
  • laser light L for example, picosecond pulse laser light or sub-picosecond pulse laser light
  • the laser oscillator 14 emits, for example, green laser light, but the type of the laser light L is not limited to this.
  • the splitter 15 splits the laser beam L from the laser oscillator 14 into a first laser beam L1 and a second laser beam L2 by a built-in mirror.
  • the output adjusters 16a and 16b include a first output adjuster 16a that adjusts the output of the first laser beam L1, and a second output adjuster 16b that adjusts the output of the second laser beam L2.
  • Each output adjustment part 16a, 16b is comprised by the attenuator (optical attenuator), for example.
  • the first output adjustment unit 16a and the second output adjustment unit 16b adjust the laser beams L1 and L2 incident from the splitter 15 so that the first laser beam L1 and the second laser beam L2 have the same output condition. .
  • the scanners 17a and 17b include a first scanner 17a that scans the first laser light L1 and a second scanner 17b that scans the second laser light L2.
  • the scanners 17a and 17b scan the continuous tube glass G1 with the laser beams L1 and L2 incident via the splitter 15 and the output adjustment units 16a and 16b.
  • Each of the scanners 17a and 17b is configured by, for example, a galvano scanner, but is not limited to this configuration.
  • Each scanner 17a, 17b can scan each laser beam L1, L2 over a wide range along the circumferential direction of the continuous tube glass G1 by an actuator such as a voice coil motor (VCM).
  • VCM voice coil motor
  • the crack propagation device 12 includes a tensile force applying unit 18 and a bending force applying unit 19.
  • the tensile force applying unit 18 applies a tensile force f1 in a direction along the central axis X1 of the continuous tube glass G1.
  • the bending force application unit 19 applies a bending force f2 to the continuous tube glass G1 so that the central axis X1 of the continuous tube glass G1 is curved with a predetermined curvature.
  • the tensile force applying unit 18 includes a gripping unit 20 and a slide driving unit 21.
  • the grip 20 is configured to grip the downstream end of the continuous tube glass G1.
  • the slide drive unit 21 is for moving the grip unit 20 in a direction along the central axis X1 of the continuous tube glass G1.
  • the slide drive unit 21 can move the gripping unit 20 in synchronization with the continuous tube glass G1.
  • the bending force application unit 19 includes a plurality of rollers 22 that sandwich the upper and lower portions of the continuous tube glass G1 in the vertical direction.
  • the position at which the continuous tube glass G1 is supported (clamped) by the plurality of rollers 22 is set so as to bend with a predetermined curvature as the central axis X1 of the continuous tube glass G1 goes downstream.
  • the support part 13 is comprised by the some roller or roller pair arrange
  • the support part 13 guides the continuous tube glass G1 drawn out from the annealer 6 to the downstream side in the transport direction (X-axis direction). In FIG. 2, the support 13 is not shown.
  • the transport device 9 is configured by a belt conveyor or a roller conveyor, but is not limited to this configuration.
  • the conveyance apparatus 9 conveys the tube glass G2 along the direction (for example, Y-axis direction) crossing the conveyance direction (X-axis direction) of the continuous tube glass G1.
  • the molten glass M generated in the glass melting furnace 2 is supplied onto the sleeve 3 that is rotationally driven in the muffle furnace 5.
  • the molten glass M is formed into a tubular shape by the sleeve 3, and then slowly cooled by the annealer 6, and is drawn out from the annealer 6 as a continuous tube glass G ⁇ b> 1.
  • the continuous tube glass G1 is sent to the cutting device 8 via the tube drawing device 7. Then, the cutting process which cut
  • a step of applying stress to the continuous tube glass G1 is executed.
  • stress applying step first, when the downstream end of the continuous tube glass G1 reaches a predetermined position, the grip 20 of the tensile force applying unit 18 grips the downstream end. Thereafter, the slide drive unit 21 moves the grip unit 20 toward the downstream side in the longitudinal direction of the continuous tube glass G1. Thereby, the continuous tube glass G1 is given a tensile force f1 in a direction along the central axis X1 (see FIG. 2).
  • the continuous tube glass G1 passes between a plurality of rollers 22 located on the upstream side of the gripping portion 20. At this time, a bending force f2 is applied to the continuous tube glass G1.
  • the continuous tube glass G1 is curved with a predetermined curvature so that the irradiation side (upper side in FIG. 2) of the laser beams L1 and L2 is convex. As described above, tensile stress and bending stress are applied to the continuous tube glass G1.
  • the laser irradiation process by the internal crack region forming apparatus 11 is executed in a state where each stress is applied to the continuous tube glass G1.
  • the splitter 15 divides the laser light L emitted from the laser oscillator 14 into a first laser light L1 and a second laser light L2.
  • the laser beams L1 and L2 are adjusted to the same output condition (pulse width and output) by the output adjusters 25a and 25b, and then enter the scanners 17a and 17b.
  • the scanners 17a and 17b irradiate the laser beams L1 and L2 toward the continuous tube glass G1 so that the focal points F1 and F2 are aligned with the irradiation start position SP set inside the continuous tube glass G1.
  • the irradiation start positions SP of the laser beams L1 and L2 are set on a vertical center line Z1 passing through the central axis X1 of the continuous tube glass G1.
  • Each of the scanners 17a and 17b has a focal point F1 of the first laser beam L1 and a focal point F2 of the second laser beam L2 that coincide with each other or a part of each of the focal points F1 and F2 overlaps at the irradiation start position SP.
  • the focal points F1 and F2 can be irradiated in a separated state as shown in FIG.
  • the one where the distance between two points is smaller is preferable, and it is preferable that it is 10% or less with respect to the length of the perimeter of the tube glass G2.
  • the scanners 17a and 17b scan the laser beams L1 and L2 toward the irradiation end position EP set at a position away from the irradiation start position SP in the circumferential direction inside the continuous tube glass G1. That is, in FIG. 3, the first scanner 17a scans the first laser light L1 along the counterclockwise direction from the irradiation start position SP, and the second scanner 17b performs the second scan along the clockwise direction from the irradiation start position SP. The laser beam L2 is scanned. When the irradiation start position SP is in a separated state as shown in FIG. 12 described later, the first laser light L1 is set at a position away from the irradiation start position SP of the second laser light L2 in the circumferential direction.
  • the second laser beam L2 is scanned toward the irradiation end position EP (counterclockwise), and the second laser beam L2 is set at a position away from the irradiation start position SP of the first laser beam L1 in the circumferential direction. Scanning towards the end position EP (along clockwise).
  • FIG. 4 shows scanning trajectories of the laser beams L1 and L2 when viewed in a coordinate system based on the moving continuous tube glass G1 (xyz coordinate system shown in FIG. 4).
  • Each of the scanners 17a and 17b emits the laser beams L1 and L2 along the circumferential direction of the continuous tube glass G1 so that the virtual sections X2 perpendicular to the central axis X1 of the continuous tube glass G1 include the focal points F1 and F2. Can scan.
  • the internal crack region forming apparatus 11 moves the focal point F1 of the first laser light L1 from the irradiation start position SP to the irradiation end position EP by the first scanner 17a, and the focal point F2 of the second laser light L2 by the second scanner 17b. Is moved from the irradiation start position SP to the irradiation end position EP. At this time, each scanner 17a, 17b moves the focal point F1 of the first laser light L1 and the focal point F2 of the second laser light L2 in the opposite directions in the circumferential direction of the continuous tube glass G1.
  • FIG. 5 is a plan view showing scanning trajectories of the laser beams L1 and L2 when viewed in the XYZ coordinate system with the fixed side as a reference.
  • the first laser beam L1 forms an angle ⁇ 1 with respect to the central axis X1 while the continuous tube glass G1 moves by a predetermined distance d along the transport direction along the central axis X1. Scanning is performed from the irradiation start position SP to the irradiation end position EP along the direction.
  • the scanning direction of the second laser light L2 is set to be symmetric with respect to the scanning direction of the first laser light L1 with respect to the central axis X1. That is, the second laser light L2 is scanned from the irradiation start position SP to the irradiation end position EP along a direction that forms an angle ⁇ 2 with respect to the central axis X1.
  • the angle ⁇ 2 of the second laser light L2 is set equal to the angle ⁇ 1 of the first laser light L1.
  • the scanning speed of the first laser beam L1 and the scanning speed of the second laser beam L2 are set to be equal.
  • the first laser beam L1 and the second laser beam L2 are scanned so as to form an angle ⁇ 1 and an angle ⁇ 2, respectively, with respect to the central axis X1, so that each focal point F1 is displayed on the virtual cross section X2 shown in FIG. , F2 are included.
  • first internal crack region In the regions irradiated with the laser beams L1 and L2, internal crack regions C1a and C1b including one or more cracks are formed by multiphoton absorption.
  • second internal crack region the internal crack region C1a formed by the second laser beam L2
  • first internal crack region the internal crack region formed by the first laser beam L1
  • second internal crack region the internal crack region formed by the second laser beam L2
  • the first internal crack region C1a and the second internal crack region C1b proceed in the opposite direction (reverse direction) from the irradiation start position SP in the circumferential direction of the continuous tube glass G1.
  • the internal crack region forming apparatus 11 ends the irradiation of the laser beams L1 and L2.
  • a strip-shaped first internal crack region C1a and second internal crack region C1b having a predetermined length are integrally formed inside the continuous tube glass G1.
  • the length of the first internal crack region C1a is equal to the length of the second internal crack region C1b.
  • the code of the integrally formed crack region may also be described as C1.
  • the cracks in the internal crack regions C1a and C1b develop in the circumferential direction due to the action of stress acting on the inside of the continuous tube glass G1.
  • first crack progress region the crack region C2a that progresses from the first internal crack region C1a
  • second crack progress region the crack region C2b that progresses from the second internal crack region C1b
  • the crack progress regions C2a and C2b start to expand in a direction away from the end portions (positions corresponding to the irradiation end position EP) of the internal crack regions C1a and C1b. As shown in FIG. 9, the crack progress regions C2a and C2b continue to expand at the same speed along the circumferential direction thereafter. Finally, the crack progress regions C2a and C2b simultaneously reach a predetermined joining position CP (a position on the center line Z1 and opposite to the irradiation start position SP in the radial direction). At this time, as shown in FIG. 10, at the merge position CP, the first crack progress region C2a and the second crack progress region C2b coincide with each other without causing a positional shift in the longitudinal direction of the continuous tube glass G1.
  • the continuous tube glass G1 is cut.
  • a tube glass G2 having a predetermined length is formed.
  • the manufactured tube glass G2 is sequentially transported in a predetermined direction by the transport device 9 (transport process).
  • the first laser light L1 and the second laser light L2 are scanned symmetrically in two directions away from each other.
  • the first crack progress region C2a and the second crack progress region C2b can be made to coincide at the joining position CP without causing a positional shift.
  • disconnection can be made high quality.
  • the maximum unevenness (maximum step) on the end face of the tube glass G2 can be 500 ⁇ m or less.
  • the end surface of the manufactured tube glass G2 is irradiated so that the focal points F1 and F2 of the laser beams L1 and L2 overlap each other at the irradiation start position SP in the laser irradiation step. Reference) will remain.
  • the maximum width of the laser irradiation mark IM is preferably 10 ⁇ m or more and 150 ⁇ m or less, and more preferably 30 ⁇ m or more and 100 ⁇ m or less. Further, the maximum depth of the laser irradiation mark IM is preferably 50 ⁇ m or more and 500 ⁇ m or less, and more preferably 50 ⁇ m or more and 300 ⁇ m or less. If it is said width and depth, the cut surface in parts other than a laser irradiation trace (crack progress area etc.) will also become beautiful.
  • this invention is not limited to the structure of the said embodiment, It is not limited to the above-mentioned effect.
  • the present invention can be variously modified without departing from the gist of the present invention.
  • the irradiation start position SP of the first laser beam L1 and the irradiation start position SP of the second laser beam L2 may be set apart from each other.
  • the distance from the center line Z1 to the irradiation start position SP of the first laser beam L1 and the distance from the center line Z1 to the irradiation start position SP of the second laser beam L2 may be set to be equal. desirable.
  • the method of manufacturing the tube glass G2 by cutting the continuous tube glass G1 is exemplified.
  • the present invention is not limited to this, and the present invention cuts a tube glass of a predetermined length to obtain a plurality of tubes. It is applicable also when manufacturing glass.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Plasma & Fusion (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Laser Beam Processing (AREA)

Abstract

La présente invention concerne une étape de coupe dans un procédé de fabrication d'un verre tubulaire comprenant une étape d'exposition au rayonnement laser et une étape d'application de contrainte. Dans l'étape d'exposition au rayonnement laser, une fissure formée par une première lumière laser (L1) et une fissure formée par une seconde lumière laser (L2) sont propagées dans des sens circonférentiellement contraires d'un verre tubulaire (G1) par balayage de la première lumière laser (L1) et de la seconde lumière laser (L2) de manière à les éloigner l'une de l'autre depuis une position de départ (SP) d'exposition au rayonnement.
PCT/JP2019/000655 2018-03-12 2019-01-11 Procédé de fabrication d'un verre tubulaire et verre tubulaire WO2019176255A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-044366 2018-03-12
JP2018044366A JP2019156670A (ja) 2018-03-12 2018-03-12 管ガラスの製造方法および管ガラス

Publications (1)

Publication Number Publication Date
WO2019176255A1 true WO2019176255A1 (fr) 2019-09-19

Family

ID=67906616

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/000655 WO2019176255A1 (fr) 2018-03-12 2019-01-11 Procédé de fabrication d'un verre tubulaire et verre tubulaire

Country Status (2)

Country Link
JP (1) JP2019156670A (fr)
WO (1) WO2019176255A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113387558A (zh) * 2021-06-30 2021-09-14 杭州富通通信技术股份有限公司 预制棒的加工工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1171124A (ja) * 1997-07-07 1999-03-16 Schott Ruhrglas Gmbh ガラス物体に破断点を形成する方法
WO2016208248A1 (fr) * 2015-06-25 2016-12-29 日本電気硝子株式会社 Procédé de coupe et dispositif de coupe de tube en verre, et procédé de fabrication de produit de tube en verre
WO2017068819A1 (fr) * 2015-10-20 2017-04-27 日本電気硝子株式会社 Procédé de coupe et dispositif de coupe de verre pour tubes, et procédé de fabrication de produit en verre pour tubes
WO2017073118A1 (fr) * 2015-10-30 2017-05-04 日本電気硝子株式会社 Procédé et dispositif de découpe de verre tubulaire, et procédé de fabrication de verre tubulaire
JP2017529311A (ja) * 2014-07-11 2017-10-05 コーニング インコーポレイテッド ガラス物品内にパルスレーザで穿孔を生じさせることによるガラス切断システムおよび方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1171124A (ja) * 1997-07-07 1999-03-16 Schott Ruhrglas Gmbh ガラス物体に破断点を形成する方法
JP2017529311A (ja) * 2014-07-11 2017-10-05 コーニング インコーポレイテッド ガラス物品内にパルスレーザで穿孔を生じさせることによるガラス切断システムおよび方法
WO2016208248A1 (fr) * 2015-06-25 2016-12-29 日本電気硝子株式会社 Procédé de coupe et dispositif de coupe de tube en verre, et procédé de fabrication de produit de tube en verre
WO2017068819A1 (fr) * 2015-10-20 2017-04-27 日本電気硝子株式会社 Procédé de coupe et dispositif de coupe de verre pour tubes, et procédé de fabrication de produit en verre pour tubes
WO2017073118A1 (fr) * 2015-10-30 2017-05-04 日本電気硝子株式会社 Procédé et dispositif de découpe de verre tubulaire, et procédé de fabrication de verre tubulaire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113387558A (zh) * 2021-06-30 2021-09-14 杭州富通通信技术股份有限公司 预制棒的加工工艺
CN113387558B (zh) * 2021-06-30 2022-09-23 杭州富通通信技术股份有限公司 预制棒的加工工艺

Also Published As

Publication number Publication date
JP2019156670A (ja) 2019-09-19

Similar Documents

Publication Publication Date Title
JP6757491B2 (ja) 管ガラスの切断方法及び切断装置、並びに管ガラス製品の製造方法
WO2017073118A1 (fr) Procédé et dispositif de découpe de verre tubulaire, et procédé de fabrication de verre tubulaire
KR101751368B1 (ko) 유리 필름의 할단 방법
EP2429961B1 (fr) Procédés pour la coupe d'un matériau fragile
JP5756574B2 (ja) ガラスリボンを低エネルギーで分割する方法
TWI380963B (zh) Method for processing brittle material substrates
US20120047957A1 (en) Methods for cutting a fragile material
TW200920704A (en) Chamfering method for brittle substrate
TWI375602B (fr)
TWI675011B (zh) 將玻璃卷材分離的方法
TWI518044B (zh) 脆性材料基板的切割方法
KR20110003531A (ko) 취성 재료 기판의 가공 방법
WO2019176255A1 (fr) Procédé de fabrication d'un verre tubulaire et verre tubulaire
US10508052B2 (en) Tube glass cutting method and cutting device, and tube glass product manufacturing method
JP2019189472A (ja) 管ガラスの製造方法および管ガラス
TWI527650B (zh) 雷射加工裝置
JP2018123041A (ja) ガラス管製造方法及びガラス管製造装置
WO2016208248A1 (fr) Procédé de coupe et dispositif de coupe de tube en verre, et procédé de fabrication de produit de tube en verre
JP2018002555A (ja) ガラス物品の製造方法
JP7095471B2 (ja) 管状ガラス切断方法
JP2019059653A (ja) ガラス基板の製造方法
JP2020029379A (ja) 管状ガラス切断装置及び管状ガラス切断方法
US20220081343A1 (en) Method and apparatus for cutting glass sheets
WO2013051424A1 (fr) Dispositif pour usinage au laser d'un substrat en verre
JP6087727B2 (ja) 帯状ガラスの切断方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19767721

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19767721

Country of ref document: EP

Kind code of ref document: A1