CN104086080A - Grilled lamp, sedimentation device and method for improving density of loosened body of optical fiber precast rod - Google Patents
Grilled lamp, sedimentation device and method for improving density of loosened body of optical fiber precast rod Download PDFInfo
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- CN104086080A CN104086080A CN201410341367.XA CN201410341367A CN104086080A CN 104086080 A CN104086080 A CN 104086080A CN 201410341367 A CN201410341367 A CN 201410341367A CN 104086080 A CN104086080 A CN 104086080A
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- Prior art keywords
- deposition
- blowlamp
- loosening body
- heat lamp
- preform loosening
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/01413—Reactant delivery systems
- C03B37/0142—Reactant deposition burners
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/0148—Means for heating preforms during or immediately prior to deposition
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2207/00—Glass deposition burners
- C03B2207/50—Multiple burner arrangements
- C03B2207/54—Multiple burner arrangements combined with means for heating the deposit, e.g. non-deposition burner
Abstract
The invention discloses a grilled lamp, a sedimentation device and a method for improving density of a loosened body of an optical fiber precast rod. The sedimentation device comprises the grilled lamp and two sedimentation blowing lamps, wherein the two sedimentation blowing lamps are positioned in the same vertical plane; the second sedimentation blowing lamp is positioned above the first sedimentation blowing lamp; the grilled lamp is not positioned in the vertical plane and arranged on the inclined upper part of the second sedimentation blowing lamp along a rotation direction of the loosened body of the optical fiber precast rod. When the grilled lamp and the two sedimentation blowing lamps meet the condition that (c-b) is more than or equal to 0 and less than or equal to (b-a), a, b and c are the heights of a sedimentation point of the first sedimentation blowing lamp, a sedimentation point of the second sedimentation blowing lamp having a distance away from the bottom end of the loosened body of the optical fiber precast rod. The invention also discloses the method for improving the density of the loosened body of the optical fiber precast rod by using the sedimentation device, the grilled lamp used in the sedimentation device and the method for improving the density of the loosened body of the optical fiber precast rod by using the grilled lamp.
Description
Technical field
The present invention relates to preform and manufacture field, relate in particular to a kind of heat lamp for improving preform loosening body density, adopt this heat lamp to realize a kind ofly to improve the method for preform loosening body density, a kind of method that improves preform loosening body density of a kind of deposition apparatus of preform loosening body, this deposition apparatus.
Background technology
VAD process deposits preform preform loosening body, preform loosening body is grown vertically, and in process of growth, top loose media surface temperature declines gradually.Because temperature is lower, cigarette ash density is less, the soft layer that final loose media surface deposition 5～30mm density is less.Because top layer density is less, the preform loosening body larger with internal layer forms larger density gradient, easily causes the cracking of preform loosening body in sintering process.Meanwhile, in transport process, the impact that loose media is also very easily given a shock and ftractureing.
The manufacture method of a patent documentation publication number 103241938A < < preform and producing apparatus > > thereof are by being used thermal imager monitoring preform loosening body surface temperature distribution, adjust gas flow and control the density of preform loosening body, the method can be good at controlling two density between blowtorch, but cannot solve the less problem of top layer preform loosening body density.
Summary of the invention
In order to solve the less problem of top layer preform loosening body density, the invention provides a kind of heat lamp for improving preform loosening body density, adopt this heat lamp to realize a kind ofly to improve the method for preform loosening body density, a kind of method that improves preform loosening body density of a kind of deposition apparatus of preform loosening body, this deposition apparatus.
The present invention realizes like this, a kind of heat lamp, it is for improving the density of preform loosening body, this heat lamp comprises the first ventilating zone and take the second ventilating zone, the 3rd ventilating zone, four-way gas area, the five-way gas area that this first ventilating zone coaxially arranges as axle center and set gradually from inside to outside, this first ventilating zone and this five-way gas area are all connected with combustion-supporting gas, this second ventilating zone and this four-way gas area are all connected with separation gas, and the 3rd ventilating zone is connected with combustion gas.
The present invention also provides a kind of method that improves preform loosening body density, it adopts above-mentioned heat lamp to coordinate the deposition apparatus of a preform loosening body to realize the object that improves preform loosening body density, this deposition apparatus comprises the first deposition blowlamp, the second deposition blowlamp, this deposition apparatus is for adopting this first deposition blowlamp, this second deposition blowlamp to deposit preform loosening body at rotary course, and the method comprises the following steps:
Settle this heat lamp: this first deposition blowlamp, this second deposition blowlamp are positioned at same perpendicular, this perpendicular is parallel to the rotary middle spindle of this preform loosening body, this second deposition blowlamp is positioned at this first deposition blowlamp top, and this heat lamp is not in this perpendicular and along the sense of rotation of this preform loosening body, be arranged on the oblique upper of this second deposition blowlamp; This first deposition blowlamp, this second deposition blowlamp, this heat lamp meet following relational expression: 0≤(c-b)≤(b-a), wherein, a is that the saltation point of this first deposition blowlamp is apart from the height of this preform loosening body bottom, b be the saltation point of this second deposition blowlamp apart from the height of this preform loosening body bottom, the calcination point that c is this heat lamp is apart from the height of this preform loosening body bottom;
Open this heat lamp: in this first ventilating zone and this five-way gas area, be all connected with combustion-supporting gas, in this second ventilating zone and this four-way gas area, be all connected with separation gas, in the 3rd ventilating zone, be connected with combustion gas;
Open this first deposition blowlamp, this second deposition blowlamp, corresponding formation of deposits sandwich layer and covering on this preform loosening body.
As the further improvement of such scheme, this first ventilating zone is connected with 5slm O
2form and survey gas mixture with 10slm pure air, this second ventilating zone is connected with 5slm Ar, and the 3rd ventilating zone is connected with 50slmH
2, this four-way gas area is connected with 8slmAr, and this five-way gas area is connected with 10slm O
2with the gas mixture that 20slm pure air forms, this pure air refers to that air is through degreasing, the gas obtaining except solid impurity.
The present invention also provides a kind of deposition apparatus, it comprises the first deposition blowlamp, the second deposition blowlamp, heat lamp, this deposition apparatus is for adopting this first deposition blowlamp to preform loosening body at rotary course, this second deposition blowlamp deposits, two deposition blowlamps are positioned at same perpendicular, this perpendicular is parallel to the rotary middle spindle of this preform loosening body, this second deposition blowlamp is positioned at this first deposition blowlamp top, this heat lamp is not in this perpendicular and along the sense of rotation of this preform loosening body, be arranged on the oblique upper of this second deposition blowlamp, this first deposition blowlamp, this second deposition blowlamp, this heat lamp meet following relational expression: 0≤(c-b)≤(b-a), wherein, a is that the saltation point of this first deposition blowlamp is apart from the height of this preform loosening body bottom, b be the saltation point of this second deposition blowlamp apart from the height of this preform loosening body bottom, the calcination point that c is this heat lamp is apart from the height of this preform loosening body bottom.
Further improvement as such scheme, this heat lamp is above-mentioned heat lamp, that is: this heat lamp comprises the first ventilating zone and take the second ventilating zone, the 3rd ventilating zone, four-way gas area, the five-way gas area that this first ventilating zone coaxially arranges as axle center and set gradually from inside to outside, this first ventilating zone and this five-way gas area are all connected with combustion-supporting gas, this second ventilating zone and this four-way gas area are all connected with separation gas, and the 3rd ventilating zone is connected with combustion gas.
As the further improvement of such scheme, along the sense of rotation of this preform loosening body, the angle theta that this heat lamp forms to this second deposition blowlamp meets relational expression: 20 °≤θ≤60 °.Preferably, angle theta meets relational expression: 30 °≤θ≤45.
As the further improvement of such scheme, the elevation angle ω of this heat lamp meets relational expression: 15 °≤ω≤60 °.Preferably, elevation angle ω meets relational expression: 20 °≤ω≤30 °.
The present invention also provides a kind of method that improves preform loosening body density, and it is applied to above-mentioned any one deposition apparatus, and the method comprises the following steps:
Open this heat lamp;
Open this first deposition blowlamp, this second deposition blowlamp, corresponding formation of deposits sandwich layer and covering on this preform loosening body.
As the further improvement of such scheme, the calcination position of this heat lamp is between the conical surface and stable section of this preform loosening body.
The present invention is by increasing heat lamp in preform loosening body sense of rotation and at the oblique upper of the second deposition blowlamp, preform loosening body surface density is heated to improve in preform loosening body surface, this method both can avoid heat lamp flame to disturb the second deposition blowlamp deposition region, can heat every layer of preform loosening body of the second deposition blowlamp top deposition again simultaneously, improve the density of the second deposition blowlamp top preform loosening body, the surface density that this method can better be controlled preform loosening body distributes, solved the problem of Cracking of preform loosening body.
Accompanying drawing explanation
The deposition apparatus that Fig. 1 provides for employing better embodiment of the present invention is realized the application schematic diagram of preform loosening body deposition.
Fig. 2 is the position view of deposition apparatus in Fig. 1.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the sectional view of Fig. 3.
The structure sectional view of the heat lamp that Fig. 5 provides for better embodiment of the present invention.
Fig. 6 is the density profile contrast figure of preform loosening body.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 1, its deposition apparatus providing for employing better embodiment of the present invention is realized the application schematic diagram of preform loosening body 104 depositions.
Incorporated by reference to Fig. 2, Fig. 3, Fig. 4, this deposition apparatus comprises the first deposition blowlamp 101, the second deposition blowlamp 102, heat lamp 103.This deposition apparatus is for adopting the first deposition blowlamp 101, the second deposition blowlamp 102 to deposit preform loosening body 104 at rotary course.
The first deposition blowlamp 101, the second deposition blowlamp 102 are positioned at same perpendicular, and this perpendicular is parallel to the rotary middle spindle of this preform loosening body 104, and the second deposition blowlamp 102 is positioned at the first deposition blowlamp 101 tops.
Heat lamp 103 is not in this perpendicular and along the sense of rotation 105 of this preform loosening body 104, be arranged on the oblique upper of the second deposition blowlamp 102; The first deposition blowlamp 101, the second deposition blowlamp 102, heat lamp 103 meet following relational expression: 0≤(c-b)≤(b-a), wherein, a is that the saltation point of the first deposition blowlamp 101 is apart from the height of preform loosening body 104 bottoms, b be the saltation point of the second deposition blowlamp 102 apart from the height of preform loosening body 104 bottoms, c is that the calcination point of heat lamp 103 is apart from the height of preform loosening body 104 bottoms.
Along the sense of rotation of this preform loosening body 104, the angle theta that heat lamp 103 to second deposition blowlamps 102 form can meet relational expression: 20 °≤θ≤60 °.The angle Selection of angle theta is the interference for fear of 103 pairs of the second deposition blowlamps 102 of heat lamp, heat lamp 103 and the no longer same perpendicular of the second deposition blowlamp 102, can avoid because of heat lamp 103 from the second deposition blowlamp 102 too close to, cause deposition position (the being saltation point) excess Temperature of the second deposition blowlamp 102 and be unfavorable for adhering to of cigarette ash.If be too far away from, the soft layer that the density of the second deposition blowlamp 102 tops is little forms, and the calcination of heat lamp 103 can only improve the density on soft layer top layer, cannot solve the low density problem of soft layer.The calcination position of heat lamp 103 is between the conical surface and stable section of preform loosening body 104.Preferably, angle theta meets relational expression: 30 °≤θ≤45.
The elevation angle ω of heat lamp 103 can meet relational expression: 15 °≤ω≤60 °.The angle Selection of elevation angle ω: the cigarette ash bond area of the second deposition blowlamp 102 is larger, heat lamp 103 is faced upward and is contributed to the region that the second deposition blowlamp 102 is deposited to burn, the angle of elevation angle ω is too large, flame disperses area large, the temperature of burning face can decline naturally, and the effect of burning will be poorer; The angle of elevation angle ω is too little, and flame concentrates that to burn area little, burns surface temperature just higher, and it is disadvantageous that the high cigarette ash to the second deposition blowlamp 102 of temperature adheres to.Preferably, elevation angle ω meets relational expression: 20 °≤ω≤30 °.
Why heat lamp 103 is arranged on the downstream that preform loosening body 104 rotates, and there is certain angle with the second deposition blowlamp 102 place vertical planes, Main Function have following some: cigarette ash temperature in rotation process that the second deposition blowlamp 102 is deposited on preform loosening body 104 surfaces reduces gradually, until the flame of the second deposition blowlamp 102 is again during calcination, in this rotation process, the cigarette ash of 103 pairs of the second deposition blowlamp 102 tops of heat lamp carries out the density that continuous heating can improve preform loosening body 104; If heat lamp 103 from the second deposition blowlamp 102 too close to, disturb the flame of the second deposition blowlamp 102, if be too far away from, after the loosening body of the second deposition blowlamp 102 tops is heated, cooling time is shorter again, causes loosening body surface temperature high and be unfavorable for adhering to of cigarette ash.
Refer to Fig. 5, heat lamp 103 can comprise the first ventilating zone 103A and take the second ventilating zone 103B, the 3rd ventilating zone 103C, four-way gas area 103D, the five-way gas area 103E that this first ventilating zone 103A coaxially arranges as axle center and set gradually from inside to outside.
The first ventilating zone 103A and five-way gas area 103E are all connected with combustion-supporting gas, and combustion-supporting gas can be used pure air, O
2or pure air and O
2mixed gas, pure air refers to that air is through degreasing, the gas obtaining except solid impurity.The second ventilating zone 103B and four-way gas area 103D are all connected with separation gas, and this separation gas can be the rare gas elementes such as nitrogen or fluorine gas.The 3rd ventilating zone 103C is connected with combustion gas, and the combustion gas that heat lamp 103 is used can be identical with the combustion gas that arbitrary blowtorch uses, and in the present embodiment, in the first deposition blowlamp 101, passes into SiCl
4and GeCl
4, H
2, O
2with Ar formation of deposits sandwich layer; The second deposition blowlamp 102 passes into SiCl
4, H
2, O
2with Ar formation of deposits covering.
The structure design of heat lamp 103 can realize and in heat lamp 103, be connected with a certain proportion of combustion gas and combustion-supporting gas, can guarantee that combustion gas fully burns, between combustion gas and combustion-supporting gas, use separation gas, can prevent that the combustion gas of blowtorch 103 and combustion-supporting gas are in the burning of blowtorch mouth, cause excess Temperature and damage blowtorch 103.
The method of raising preform loosening body 104 density of this deposition apparatus comprises the following steps: 1, open heat lamp 103: at the first ventilating zone 103A and five-way gas area 103E, be all connected with combustion-supporting gas, at the second ventilating zone 103B and four-way gas area 103D, be all connected with separation gas, at the 3rd ventilating zone 103C, be connected with combustion gas; 2, open the first deposition blowlamp 101, the second deposition blowlamp 102 corresponding formation of deposits sandwich layer and covering on preform loosening body 104.Particularly, (the first deposition blowlamp 101 can pass into SiCl toward the first deposition blowlamp 101, the second deposition blowlamp 102, to pass into respectively combustion gas and raw material
4and GeCl
4, the second deposition blowlamp 102 can pass into SiCl
4) corresponding formation of deposits sandwich layer and covering on preform loosening body 104.
For the ease of promoting the method for these raising preform loosening body 104 density, can adopt anchor to make a member the first deposition blowlamp 101, the second deposition blowlamp 102, heat lamp 103.In other embodiments, also can on traditional deposition apparatus, increase heat lamp 103 merely, now, the method that improves accordingly preform loosening body 104 density comprises the following steps:
Settle heat lamp 103: heat lamp 103 is (this perpendicular is the perpendicular of above-mentioned the first deposition blowlamp 101, the second deposition blowlamp 102 formation) not in this perpendicular, and along the sense of rotation 105 of this preform loosening body 104, be arranged on the oblique upper of the second deposition blowlamp 102; The first deposition blowlamp 101, the second deposition blowlamp 102, heat lamp 103 meet above-mentioned relation formula: 0≤(c-b)≤(b-a);
Open heat lamp 103: at the first ventilating zone 103A and five-way gas area 103E, be all connected with combustion-supporting gas, at the second ventilating zone 103B and four-way gas area 103D, be all connected with separation gas, at the 3rd ventilating zone 103C, be connected with combustion gas;
Open the first deposition blowlamp 101, the second deposition blowlamp 102, corresponding formation of deposits sandwich layer and covering on preform loosening body 104.
Refer to Fig. 6, curve 1 is the density profile that this deposition apparatus is not opened the preform loosening body 104 that the method for heat lamp 103 makes; Curve 2 is density profile that this deposition apparatus is opened the preform loosening body 104 that the method for heat lamp 103 makes.
1, curve 1 acquisition pattern
In the first deposition blowlamp 101, pass into raw material (SiCl
4and GeCl
4), and combustion gas (H
2, O
2and Ar) formation of deposits sandwich layer; The second deposition blowlamp 102 passes into raw material (SiCl
4), and combustion gas (H
2, O
2and Ar) formation of deposits covering, heat lamp 103 does not pass into any gas.The first deposition blowlamp 101, the second deposition blowlamp 102 have all been opened, and heat lamp 103 is not opened, and such deposition apparatus is also just with respect to traditional deposition apparatus.
The saltation point height a of the first deposition blowlamp 101 is 20mm; The saltation point height b of the second deposition blowlamp 102 is 120mm, and the calcination point height c of heat lamp 103 is 170mm, and the horizontal sextant angle θ of heat lamp 103 and the second deposition blowlamp 102 is 30 °, and the elevation angle ω of heat lamp 103 is 45 °.
2, curve 2 acquisition patterns
In the first deposition blowlamp 101, pass into raw material (SiCl
4and GeCl
4), and combustion gas (H
2, O
2and Ar) formation of deposits sandwich layer; The second deposition blowlamp 102 passes into raw material (SiCl
4), and combustion gas (H
2, O
2and Ar) formation of deposits covering.The first ventilating zone 103A of heat lamp 103 is connected with 5slm O
2form and survey gas mixture with 10slm pure air, the second ventilating zone 103B is connected with 5slm Ar, and the 3rd ventilating zone 103C is connected with 50slmH
2, four-way gas area 103D is connected with 8slmAr, and five-way gas area 103E is connected with 10slm O
2gas mixture with 20slm pure air composition.The first deposition blowlamp 101, the second deposition blowlamp 102, heat lamp 103 have all been opened.Pure air degreases as above-mentioned definition refers to air process, the gas obtaining except solid impurity.Slm is the abbreviation of standard litre per minute, and the meaning is the flow of 1L/min under standard state.
The saltation point height a of the first deposition blowlamp 101 is 20mm; The saltation point height b of the second deposition blowlamp 102 is 120mm, and the height c of heat lamp 103 calcination points is 170mm, and the horizontal sextant angle θ of heat lamp 103 and the second deposition blowlamp 102 is 30 °, and the elevation angle ω of heat lamp 103 is 45 °.
From Fig. 6, be not difficult to find out, adopt deposition apparatus of the present invention can improve the density of preform loosening body 104.
In sum, the present invention is by increasing heat lamp 103 in the sense of rotation 105 of preform loosening body 104 and at the oblique upper of the second deposition blowlamp 102, preform loosening body 104 surface densities are heated to improve in preform loosening body 104 surfaces, this method both can avoid heat lamp 103 flames to disturb the second deposition blowlamp 102 deposition regions, can heat every layer of preform loosening body 104 of the second deposition blowlamp 102 top depositions again simultaneously, improve the density of the second deposition blowlamp 102 top preform loosening bodies 104, the surface density that this method can better be controlled preform loosening body 104 distributes, solved the problem of Cracking of preform loosening body 104.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a heat lamp, it is for improving the density of preform loosening body, it is characterized in that: this heat lamp comprises the first ventilating zone and take the second ventilating zone, the 3rd ventilating zone, four-way gas area, the five-way gas area that this first ventilating zone coaxially arranges as axle center and set gradually from inside to outside, this first ventilating zone and this five-way gas area are all connected with combustion-supporting gas, this second ventilating zone and this four-way gas area are all connected with separation gas, and the 3rd ventilating zone is connected with combustion gas.
2. a method that improves preform loosening body density, it adopts heat lamp as claimed in claim 1 to coordinate the deposition apparatus of a preform loosening body to realize the object that improves preform loosening body density, this deposition apparatus comprises the first deposition blowlamp, the second deposition blowlamp, this deposition apparatus, for adopting this first deposition blowlamp, this second deposition blowlamp to deposit preform loosening body at rotary course, is characterized in that: the method comprises the following steps:
Settle this heat lamp: this first deposition blowlamp, this second deposition blowlamp are positioned at same perpendicular, this perpendicular is parallel to the rotary middle spindle of this preform loosening body, this second deposition blowlamp is positioned at this first deposition blowlamp top, and this heat lamp is not in this perpendicular and along the sense of rotation of this preform loosening body, be arranged on the oblique upper of this second deposition blowlamp; This first deposition blowlamp, this second deposition blowlamp, this heat lamp meet following relational expression: 0≤(c-b)≤(b-a), wherein, a is that the saltation point of this first deposition blowlamp is apart from the height of this preform loosening body bottom, b be the saltation point of this second deposition blowlamp apart from the height of this preform loosening body bottom, the calcination point that c is this heat lamp is apart from the height of this preform loosening body bottom;
Open this heat lamp: in this first ventilating zone and this five-way gas area, be all connected with combustion-supporting gas, in this second ventilating zone and this four-way gas area, be all connected with separation gas, in the 3rd ventilating zone, be connected with combustion gas;
Open this first deposition blowlamp, this second deposition blowlamp, corresponding formation of deposits sandwich layer and covering on this preform loosening body.
3. the method for raising preform loosening body density as claimed in claim 2, is characterized in that: this first ventilating zone is connected with 5slm O
2form and survey gas mixture with 10slm pure air, this second ventilating zone is connected with 5slmAr, and the 3rd ventilating zone is connected with 50slmH
2, this four-way gas area is connected with 8slmAr, and this five-way gas area is connected with 10slm O
2with the gas mixture that 20slm pure air forms, this pure air refers to that air is through degreasing, the gas obtaining except solid impurity.
4. a deposition apparatus, it comprises the first deposition blowlamp, the second deposition blowlamp, this deposition apparatus is for adopting this first deposition blowlamp to preform loosening body at rotary course, this second deposition blowlamp deposits, it is characterized in that: this deposition apparatus also comprises heat lamp, two deposition blowlamps are positioned at same perpendicular, this perpendicular is parallel to the rotary middle spindle of this preform loosening body, this second deposition blowlamp is positioned at this first deposition blowlamp top, this heat lamp is not in this perpendicular and along the sense of rotation of this preform loosening body, be arranged on the oblique upper of this second deposition blowlamp, this first deposition blowlamp, this second deposition blowlamp, this heat lamp meet following relational expression: 0≤(c-b)≤(b-a), wherein, a is that the saltation point of this first deposition blowlamp is apart from the height of this preform loosening body bottom, b be the saltation point of this second deposition blowlamp apart from the height of this preform loosening body bottom, the calcination point that c is this heat lamp is apart from the height of this preform loosening body bottom.
5. deposition apparatus as claimed in claim 4, is characterized in that: this heat lamp is heat lamp claimed in claim 1.
6. deposition apparatus as claimed in claim 4, is characterized in that: along the sense of rotation of this preform loosening body, the angle theta that this heat lamp forms to this second deposition blowlamp meets relational expression: 20 °≤θ≤60 °.
7. deposition apparatus as claimed in claim 6, is characterized in that: angle theta meets relational expression: 30 °≤θ≤45.
8. deposition apparatus as claimed in claim 4, is characterized in that: the elevation angle ω of this heat lamp meets relational expression: 15 °≤ω≤60 °.
9. deposition apparatus as claimed in claim 8, is characterized in that: elevation angle ω meets relational expression: 20 °≤ω≤30 °.
10. improve a method for preform loosening body density, the deposition apparatus that it is applied to as described in any one in claim 4 to 9, is characterized in that: the method comprises the following steps:
Open this heat lamp, the calcination position of this heat lamp is between the conical surface and stable section of this preform loosening body;
Open this first deposition blowlamp, this second deposition blowlamp, corresponding formation of deposits sandwich layer and covering on this preform loosening body.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410341367.XA CN104086080B (en) | 2014-07-17 | 2014-07-17 | Sedimentation device and method for improving density of loosened body of optical fiber precast rod |
| BR112015020124A BR112015020124A2 (en) | 2014-07-17 | 2015-01-12 | curing lamp, deposition device and soot density method of fiber optic preforms |
| PCT/CN2015/070557 WO2016008287A1 (en) | 2014-07-17 | 2015-01-12 | Heat lamp, deposition device, and method for improving density of optical fiber preform loose body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410341367.XA CN104086080B (en) | 2014-07-17 | 2014-07-17 | Sedimentation device and method for improving density of loosened body of optical fiber precast rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104086080A true CN104086080A (en) | 2014-10-08 |
| CN104086080B CN104086080B (en) | 2017-02-15 |
Family
ID=51633876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410341367.XA Active CN104086080B (en) | 2014-07-17 | 2014-07-17 | Sedimentation device and method for improving density of loosened body of optical fiber precast rod |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104086080B (en) |
| BR (1) | BR112015020124A2 (en) |
| WO (1) | WO2016008287A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016008287A1 (en) * | 2014-07-17 | 2016-01-21 | 江苏亨通光电股份有限公司 | Heat lamp, deposition device, and method for improving density of optical fiber preform loose body |
| CN107255602A (en) * | 2017-06-06 | 2017-10-17 | 烽火通信科技股份有限公司 | The method and device of the loose volume density of on-line measurement |
| CN113772946A (en) * | 2021-10-22 | 2021-12-10 | 江苏亨通光导新材料有限公司 | Structure and method for preventing cone head of optical fiber preform from cracking and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110087369B (en) * | 2019-03-12 | 2022-11-11 | 平安科技（深圳）有限公司 | Office area light control method and device, storage medium and electronic equipment |
| CN114349330A (en) * | 2021-12-30 | 2022-04-15 | 江苏永鼎股份有限公司 | Method and equipment for detecting density of loose body in VAD (vapor deposition) process in real time |
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| US20020094180A1 (en) * | 2001-01-12 | 2002-07-18 | Antos A. Joseph | Optical fiber and preform, method of manufacturing same, and optical component made therefrom |
| CN1819977A (en) * | 2003-07-10 | 2006-08-16 | 信越化学工业株式会社 | Method of manufacturing optical fiber base material |
| CN203947029U (en) * | 2014-07-17 | 2014-11-19 | 江苏亨通光电股份有限公司 | Improve heat lamp, the deposition apparatus of preform loosening body density |
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| JP3705169B2 (en) * | 2000-09-14 | 2005-10-12 | 住友電気工業株式会社 | Method for producing porous glass body |
| CN101397186B (en) * | 2007-11-22 | 2012-03-28 | 富通集团有限公司 | Method for manufacturing bend insensitive optical fiber preform |
| CN104086080B (en) * | 2014-07-17 | 2017-02-15 | 江苏亨通光导新材料有限公司 | Sedimentation device and method for improving density of loosened body of optical fiber precast rod |
-
2014
- 2014-07-17 CN CN201410341367.XA patent/CN104086080B/en active Active
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2015
- 2015-01-12 BR BR112015020124A patent/BR112015020124A2/en not_active IP Right Cessation
- 2015-01-12 WO PCT/CN2015/070557 patent/WO2016008287A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2047265U (en) * | 1989-02-01 | 1989-11-08 | 中国石油化工总公司抚顺石油化工研究院 | Gas blowtorch |
| CN1340469A (en) * | 1991-01-10 | 2002-03-20 | 古河电气工业株式会社 | Manufacture device and method for porous optical fibre mother body |
| US20020094180A1 (en) * | 2001-01-12 | 2002-07-18 | Antos A. Joseph | Optical fiber and preform, method of manufacturing same, and optical component made therefrom |
| CN1819977A (en) * | 2003-07-10 | 2006-08-16 | 信越化学工业株式会社 | Method of manufacturing optical fiber base material |
| CN203947029U (en) * | 2014-07-17 | 2014-11-19 | 江苏亨通光电股份有限公司 | Improve heat lamp, the deposition apparatus of preform loosening body density |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016008287A1 (en) * | 2014-07-17 | 2016-01-21 | 江苏亨通光电股份有限公司 | Heat lamp, deposition device, and method for improving density of optical fiber preform loose body |
| CN107255602A (en) * | 2017-06-06 | 2017-10-17 | 烽火通信科技股份有限公司 | The method and device of the loose volume density of on-line measurement |
| CN113772946A (en) * | 2021-10-22 | 2021-12-10 | 江苏亨通光导新材料有限公司 | Structure and method for preventing cone head of optical fiber preform from cracking and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016008287A1 (en) | 2016-01-21 |
| BR112015020124A2 (en) | 2017-07-18 |
| CN104086080B (en) | 2017-02-15 |
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