CN107417074A - A kind of preparation method of quartzy ingot, apparatus and system - Google Patents
A kind of preparation method of quartzy ingot, apparatus and system Download PDFInfo
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- CN107417074A CN107417074A CN201710747278.9A CN201710747278A CN107417074A CN 107417074 A CN107417074 A CN 107417074A CN 201710747278 A CN201710747278 A CN 201710747278A CN 107417074 A CN107417074 A CN 107417074A
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- ingot
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B20/00—Processes specially adapted for the production of quartz or fused silica articles, not otherwise provided for
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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
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Abstract
The invention discloses a kind of quartzy ingot preparation method, apparatus and system.Methods described controls blanking speed using quartz particles fusion sediment quartz ingot and according to following steps：When in the quartzy ingot of deposition highly less than sectional dimension change critical altitude, deformation caused by quartzy ingot sectional dimension deviation caused by deadweight is compensated according to its highly smaller blanking velocity smaller principle, controls blanking speed；When in the quartzy ingot of deposition highly higher than sectional dimension change critical altitude, the compensation rate for changing critical altitude according to sectional dimension controls blanking speed.Described device includes rotation platform lifting motor, quartz raw material and fed intake amount controller and host computer.The system includes correction factor acquisition module, blanking velocity control module, quartzy ingot height assay module and quartzy ingot hypomere sectional dimension assay module.The present invention obtains the quartzy ingot of size uniform on the premise of precipitation equipment is not increased, do not improve significant loss, reduction manufacturing procedure.
Description
Technical field
The invention belongs to quartz material preparation field, more particularly, to a kind of preparation method of quartzy ingot, device and is
System.
Background technology
The quartz material that preform uses have to its appearance uniformity, air bubble content and impurity content etc. compared with
For the requirement of harshness, the quartz material prepared at present using glass sand as raw material, its appearance uniformity needs to pass through
Follow-up multiple working procedure processing could meet to require.
Gas smelting is the Main Means for preparing quartzy idiosome material using natural siliceous sand as raw material at present, and this method is
Quartz sand is melted to the quartzy ingot for being formed and being relatively large in diameter, cross section chi of the obtained quartzy ingot on different height under oxyhydrogen flame
Very little deviation is larger, can not meet the requirement of uniaxial direct tensile.To solve the above problems, need manufactured quartzy ingot being put into graphite earthenware
Melting traction stretching forms the thinner quartz pushrod of diameter in crucible, but in drawing process is drawn, quartz material is in relatively molten
Melt flow regime, quartz pushrod apparent size uniformity is still not easily controlled, and in drawing process quartz material surface very
Various impurity and bubble are readily incorporated, need to be made a return journey by being machined or corroding except the uneven part of apparent size and table
Face impurity and the higher part of defect content, if desired thinner quartz material, then be stretched to required chi by stretching device again
Very little quartz material, in whole process, substantial amounts of material can be wasted during melting traction stretching and machining etc.
In material, particularly melting traction drawing process, substantial amounts of material can be remained in crucible.
The size of quartzy ingot prepared by gas smelting is increasing at present, and diameter can be prepared by being mentioned in patent CN105314825A
More than 700mm quartzy ingot, quartz material can be reduced to a certain extent in melting traction stretching and other process
Loss, but must expect rate be no more than 80%.
A kind of cvd furnace of basic rod structure is refer in patent CN105036520A, the temperature ladder of depositional plane can be reduced
Degree, is advantageous to the size uniform of product, but still needs to follow-up melting traction stretch process；
Therefore the manufacturing procedure of reduction quartz material is needed, improves the dimensional homogeneity of quartzy ingot, and reduce impurity
Introduce, rate must be expected by being lifted, the further cost for reducing whole preparation process.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of preparation method of quartzy ingot, dress
Put and system, its object is to be compensated by Material control to gravity, using existing quartzy ingot preparation facilities, prepare chi
Very little uniform quartzy ingot, and rate height must be expected, thus solve quartzy ingot size prepared by quartzy ingot preparation method it is uneven or
The low technical problem of material rate.
To achieve the above object, according to one aspect of the present invention, there is provided a kind of preparation method of quartzy ingot, using stone
English particle fusion deposits quartzy ingot and controls blanking speed according to following steps：
When in the quartzy ingot of deposition highly less than sectional dimension change critical altitude, according to its highly smaller blanking velocity
Smaller principle compensates to deformation caused by quartzy ingot sectional dimension deviation caused by deadweight, controls blanking speed；
When in the quartzy ingot of deposition highly higher than sectional dimension change critical altitude, change critical height according to sectional dimension
The compensation rate control blanking speed of degree.
Preferably, the preparation method of the quartzy ingot, it highly faces when the quartzy ingot in deposition less than sectional dimension change
During boundary's height, the blanking speed meets following relation：
V1=[1+k (r, h)] V2r2ρ
Wherein：V1For blanking speed, i.e., raw material injected volume in the unit interval；V2For using the rotation of quartz particles fusion sediment
Turn platform fall off rate；R is target quartz ingot radius；ρ is quartz material density；K (r, h) is correction factor, and it is with depositing
Quartzy ingot height h dullness positive correlations, itself and the quartzy ingot radius dullness positive correlation in deposition.
Preferably, the preparation method of the quartzy ingot, its correction factor k (r, h) span is 0.02~0.15.
Preferably, the preparation method of the quartzy ingot, its described correction factor determine as follows：
Determine radius r for given target quartz, the correction factor and the quartzy ingot in deposition highly meet with
Lower relation：
K (r, h)=α h+ η
Wherein, α and η is constant, and η is burn tinctuer.
Preferably, the preparation method of the quartzy ingot, its described constant α calculate as follows：
α=a/ (1- η)；
Wherein, a is negative value or uniform blanking of the gravity pressure that is subject to of quartzy ingot with the slope of highly linear change curve
Shi Suoshu quartz ingot cross sectional radius with the slope of highly linear change curve negative value；η is burn tinctuer.
Preferably, the preparation method of the quartzy ingot, it measures the size below fusion sediment position in real time, calculates in real time
Quartzy ingot cross sectional radius is with the slope of highly linear change curve, the tune using the negative value of the slope as the correction factor
Whole amount, Real-time Feedback adjust the correction factor.
According to another aspect of the present invention, there is provided a kind of preparation facilities of quartzy ingot, including rotation platform lifting electricity
Machine, quartz raw material feed intake amount controller and host computer；The rotation platform lifting motor is connected with the host computer signal；
The host computer is connected with the quartz raw material injected volume controller signals；
The host computer obtains the rotation platform lifting fall off rate that the rotation platform lifting motor provides, according to this hair
The preparation method of bright offer, the quartz raw material is controlled to feed intake the blanking speed of amount controller.
Preferably, the preparation facilities, it also includes dimension measuring device, is arranged near the outer furnace outlet of burner hearth, uses
In the quartzy ingot hypomere size of detection.
According to another aspect of the present invention, there is provided a kind of quartzy ingot is prepared with the control system that feeds intake, including amendment system
Number acquisition module, blanking velocity control module, quartzy ingot height assay module and quartzy ingot hypomere sectional dimension calibrating mould
Block；
The quartzy ingot height assay module, for obtaining the quartzy ingot height in deposition, and submit to the amendment system
Number acquisition module；
The quartzy ingot hypomere sectional dimension assay module, for obtaining in its hypomere sectional dimension of the quartzy ingot of deposition,
And submit to the correction factor acquisition module；
The correction factor acquisition module, according to the quartzy ingot height and hypomere sectional dimension, determine the amendment
Coefficient, and submit to the blanking velocity control module；
It is described descend rate control module, blanking velocity is calculated according to the correction factor and controls blanking.
Preferably, the quartzy ingot is prepared with the control system that feeds intake, its described quartzy height assay module and the blanking
Rate control module is connected, and will highly submit to the blanking velocity control module in the quartzy ingot of deposition；
The blanking control module judges whether to recalculate correction factor：
When the quartzy ingot is highly less than or equal to default sectional dimension change critical altitude, amendment system is recalculated
Number；Otherwise correction factor is not recalculated.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show
Beneficial effect：
The preparation method of quartzy ingot provided by the invention, according to the target size of quartzy ingot, blanking speed is controlled, compensates stone
Deformation caused by the deadweight of English ingot, so that on the premise of precipitation equipment is not increased, do not improve significant loss, reduction manufacturing procedure,
Obtain the quartzy ingot of size uniform, diameter fluctuation ＜ 2%.Method provided by the invention, without the melting traction stretching in crucible
Process, reduce subsequent processing operations, such as polish, must expect rate so as to improve.
Device provided by the invention, it is simple in construction without accessories such as crucibles.System provided by the invention, can be preferably simultaneous
Hold existing fusion sediment device.
Brief description of the drawings
Fig. 1 is quartzy ingot preparation method flow chart provided by the invention；
Fig. 2 is preparation method correction factor provided by the invention with height change curve synoptic diagram；
Fig. 3 is method correction factor provided in an embodiment of the present invention with height change curve synoptic diagram.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Conflict can is not formed each other to be mutually combined.
The preparation method of quartzy ingot provided by the invention, quartzy ingot is deposited using training of qi method and controlled down according to following steps
Expect speed：
When in the quartzy ingot of deposition highly less than sectional dimension change critical altitude, according to its highly smaller blanking velocity
Smaller principle compensates to deformation caused by quartzy ingot sectional dimension deviation caused by deadweight, controls blanking speed；
When in the quartzy ingot of deposition highly higher than sectional dimension change critical altitude, change critical height according to sectional dimension
The compensation rate control blanking speed of degree.
V1=[1+k (r, h)] V2r2ρ
Wherein：V1For blanking speed, i.e., raw material injected volume in the unit interval；V2For using the rotation of quartz particles fusion sediment
Turn platform fall off rate；R is target quartz ingot radius；ρ is quartz material density；K (r, h) is correction factor, and it is with depositing
Quartzy ingot height h dullness positive correlations, its quartzy ingot radius dullness positive correlation deposited.
Correction factor k (r, h) span is 0.02~0.15.When the quartzy ingot in deposition is highly higher than sectional dimension
It is that sectional dimension no longer changes because of epimere pressure to change critical altitude, and now correction factor is by no longer because of the increase of height
And change.
The correction factor determines as follows：
Determine radius r for given target quartz, the correction factor and the quartzy ingot in deposition highly meet with
Lower relation：
K (r, h)=α h+ η
Wherein, α and η is constant, and η is burn tinctuer.
α can use standardization to carry out linear fit determination, can also calculate as follows：
α=a/ (1- η)；
Wherein, a is negative value or uniform blanking of the gravity pressure that is subject to of quartzy ingot with the slope of highly linear change curve
Shi Suoshu quartz ingot cross sectional radius with the slope of highly linear change curve negative value；η is burn tinctuer.
Preparation method of the present invention it is critical that determine the value of the correction factor, the correction factor with it is described
The quartzy ingot height of deposition is linear related, can be confirmed from following two direction：
On the one hand, theoretically quartzy ingot is regarded as vertical using Differential Principle for the radius r of target quartz ingot
It is divided into the geometry of minute cells on direction, the weight dm's of each minute cells, i.e. now minute cells is high apart from sample bottom
Dh and the radius r of this minute cells function are spent, is expressed as：
Dm (h, r)=ρ π r2dh；
Then the superposition of each minute cells can be drawn under height h using integral principle, quartzy ingot be subject to from
Weight power P (h, r).
The change curve of gravity pressure that quartzy ingot is subject to pressure P (h, r) suffered by height can be drawn, this curve is in
Linear relationship, carried out obtaining the linear relation of curve after data fitting, with the increase of height, pressure can reduce.
The gravity pressure that quartzy ingot is subject to the slope of highly linear change curve negative value, you can as the correction factor with it is described
In the slope of the quartzy ingot highly linear change curve of deposition, i.e. constant a, as shown in Figure 2.
On the other hand, from actual measured results：Within the unit interval, blanking quality and theoretical deposition quartz ingot quality
In the case of identical, blanking speed V is set1With the turntable fall off rate V deposited using particle fusion is adapted to2Relation meet：
V1=V2r2ρ；
Quartzy ingot sample is prepared from lower from cylinder upper, that section radius are gradually reduced, the quartzy ingot cross-sectional area with
Highly linear changes, and by its linear fit, can obtain the quartzy ingot cross-sectional area with highly linear change curve.The stone
English ingot cross-sectional area with the slope of highly linear change curve negative value, you can deposited as the correction factor with described
Quartzy ingot highly linear change curve slope, i.e. constant a.
Preferred scheme, the size below fusion sediment position is measured in real time, calculates quartzy ingot cross sectional radius in real time with height
Spend linear change slope of a curve, the adjustment amount using the negative value of the slope as the correction factor, Real-time Feedback adjustment institute
State correction factor.
The preparation facilities of quartzy ingot provided by the invention, including the control of rotation platform lifting motor, quartz raw material inventory
Device, host computer and dimension measuring device；The rotation platform lifting motor is connected with the host computer signal；It is described upper
Machine is connected with the quartz raw material injected volume controller signals；
The host computer obtains the rotation platform lifting fall off rate that the rotation platform lifting motor provides, according to this hair
The preparation method of the quartzy ingot of bright offer, the quartz raw material is controlled to feed intake the blanking speed of amount controller.
When in the quartzy ingot of deposition highly higher than sectional dimension change critical altitude, under being controlled according to material balance principle
Expect speed.
The dimension measuring device, it is arranged near the outer furnace outlet of burner hearth, for detecting quartzy ingot hypomere size.
Dimension measuring device, such as infrared distance sensor are installed below fusion sediment position, for detecting quartz
The size of post hypomere, the measurement position are remained in burner hearth, by quartzy cylinder depositional plane hypomere close to stockhole
The monitoring of cross-sectional dimension, Real-time Feedback adjust the value of correction factor, last trickle adjustment sedimentation rate, keep deposition flat
Weighing apparatus, reduces the floating of the cross-sectional dimension of quartzy cylinder, improves the dimensional homogeneity of quartzy ingot.
, can be according to raw material blanking speed V by above-mentioned control1To adjust fall off rate V2, so that sedimentary is not only
Balance can be reached with blanking material in quality, good uniformity can be also kept in product size.
Quartzy ingot preparation feeding system provided by the invention, including correction factor acquisition module, blanking velocity control mould
Block, quartzy ingot height assay module and quartzy ingot hypomere sectional dimension assay module；
The quartzy ingot height assay module, for obtaining the quartzy ingot height in deposition, and submit to the amendment system
Number acquisition module；
The quartzy ingot hypomere sectional dimension assay module, for obtaining in its hypomere sectional dimension of the quartzy ingot of deposition,
And submit to the correction factor acquisition module；
The correction factor acquisition module, according to the quartzy ingot height and hypomere sectional dimension, determine the amendment
Coefficient, and submit to the blanking velocity control module；
It is described descend rate control module, blanking velocity is calculated according to the correction factor and controls blanking.
Preferred scheme, the quartzy height assay module is connected with the blanking velocity control module, by the stone of deposition
English ingot highly submits to the blanking velocity control module；The blanking control module judges whether to recalculate correction factor：
When the quartzy ingot is highly less than or equal to default sectional dimension change critical altitude, correction factor is recalculated；Otherwise
Do not recalculate correction factor.
Prior art controls blanking speed simply by raw material blanking quality and the mass balance relation of decline product
V1With rotation platform fall off rate V2Relation, not consider answer product should conduct oneself with dignity caused by extruding of the upper strata to lower floor, so as to lead
Cause product size that uneven phenomenon is presented.The introducing of correction factor, it can offset in product preparation process because of self extrusion institute
Caused dimensional discrepancy, so as to be modified to the sectional dimension of product so that the size fluctuation of quartz material within 2%,
According to the radius of product and deposition height, correction factor needs constantly adjustment.When the quartzy ingot in deposition reach a certain height, under
After section puddle departs from flame certain distance, temperature declines, and viscosity increase, sectional dimension is no longer because epimere pressure becomes
Change, i.e., after the quartzy ingot of deposition highly reaches sectional dimension change critical altitude, correction factor change can be ignored, and be applicable thing
Expect balance principle.
It is embodiment below：
A kind of preparation method of quartzy ingot, quartzy ingot is deposited using training of qi method：
Average grain diameter 140um quartz sand is fitted into feeding device, prepares follow-up blanking.First backward blowtorch is passed through hydrogen
Lighted with oxygen, form stable oxyhydrogen flame, hydrogen total flow is 158slm, and oxygen total flow is 91slm, and rotation platform is from stove
Thorax mouth rises the position of 474mm arrival observation panels with 5.3mm/min speed, and fire box temperature stability contorting is at 1570 DEG C ± 20
DEG C, feeding device is opened, carries out quartz sand feed.
And control blanking speed according to following steps：
When the quartzy ingot in deposition is highly direct less than the distance of flame focus to stockhole+100mm, i.e. fire box temperature energy
The height of influence, various sizes of burner hearth, this is highly different, and burner hearth is bigger, and the size is bigger, and the present embodiment burner hearth is applicable
Sectional dimension change critical altitude when being 545mm, according to the smaller principle of its highly smaller blanking velocity to caused by deadweight
Deformation caused by quartzy ingot sectional dimension deviation compensates, and controls blanking speed；
The blanking speed meets following relation：
V1=[1+k (r, h)] V2r2ρ
Wherein：V1For blanking speed, i.e., raw material injected volume in the unit interval；V2For using the rotation of quartz particles fusion sediment
Turn platform fall off rate；R is target quartz ingot radius；ρ is quartz material density；K (r, h) is correction factor, and it is with depositing
Quartzy ingot height h dullness positive correlations, itself and the quartzy ingot radius dullness positive correlation in deposition.
Blanking speed is 26.27g/min, and rotation platform rotating speed is 14rpm, and fall off rate is initially set 1.10mm/
min.Fall off rate with deposition can change, and fall off rate can be gradually reduced, and meet V1=k (r, h) V2r2ρ's
Relation, after 571min, fall off rate is reduced to 0.87mm/min, stops blanking afterwards.
Correction factor k (r, h) initial value is 0.04, rate of change 0.068, is determined as follows：
Target prepares diameter 140mm quartzy ingot, pre-set radius r=70mm, quartzy ingot is divided into vertical direction micro-
Junior unit, the weight m of each minute cells is calculated successively, now the weight m of each minute cells is exactly now minute cells
Apart from sample bottom height hnAnd the radius r of this minute cells function, and m (hn, r=68) and=4624 ρ π hn, then basis
The superposition of each minute cells is it can be calculated that in different height hnUnder, pressure P that quartzy ingot is subject to, then pass through and be superimposed meter
Calculate, it can be deduced that pressure P (h, r) change curve suffered by whole quartzy ingot different height, after being carried out data fitting
The linear relation for obtaining curve is P=-0.065h+1.15.This slope of curve is -0.065, takes the negative value 0.065 of the slope,
And correction factor k (r, h) rate of change α=0.065/ (1- η), it is 0.068, raw material burn tinctuer is 4%, therefore correction factor k
The initial value of (r, h) is 0.04.
The correction factor is according to the size measured in real time below fusion sediment position, according to the size measured in real time
The bigger principle of the more big correction factor, Real-time Feedback adjust the correction factor.As shown in Figure 3.
When being highly higher than 545mm in the quartzy ingot of deposition, no longer change correction factor.
Stop blanking, be prepared into size φ 139.4mm ± 2.3mm, height 502mm apparent size is uniform, and quartzy ingot is straight
The fluctuation in footpath is less than 2%, and bright quartzy cylindrical material.Directly the stretched device stretching of quartzy cylindrical material is prepared into
42 × 1000mm of diameter quartz column, material rate is obtained as 92.4%.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., all should be included
Within protection scope of the present invention.
Claims (10)
1. a kind of preparation method of quartzy ingot, it is characterised in that using quartz particles fusion sediment quartz ingot and according to following step
Rapid control blanking speed：
It is smaller according to its highly smaller blanking velocity when in the quartzy ingot of deposition highly less than sectional dimension change critical altitude
Principle deformation caused by quartzy ingot sectional dimension deviation caused by deadweight is compensated, control blanking speed；
When in the quartzy ingot of deposition highly higher than sectional dimension change critical altitude, change critical altitude according to sectional dimension
Compensation rate controls blanking speed.
2. the preparation method of quartzy ingot as claimed in claim 1, it is characterised in that when deposition quartzy ingot highly less than section
During the change in size critical altitude of face, the blanking speed meets following relation：
V1=[1+k (r, h)] V2r2ρ
Wherein：V1For blanking speed, i.e., raw material injected volume in the unit interval；V2For using the rotary flat of quartz particles fusion sediment
Platform fall off rate；R is target quartz ingot radius；ρ is quartz material density；K (r, h) is correction factor, itself and the stone in deposition
English ingot height h dullness positive correlations, itself and the quartzy ingot radius dullness positive correlation in deposition.
3. the preparation method of quartzy ingot as claimed in claim 2, it is characterised in that correction factor k (r, h) span is
0.02~0.15.
4. the preparation method of quartzy ingot as claimed in claim 2, it is characterised in that the correction factor is true as follows
It is fixed：
Determine radius r for given target quartz, the correction factor highly meets with ShiShimonoseki with the quartzy ingot in deposition
System：
K (r, h)=α h+ η
Wherein, α and η is constant, and η is burn tinctuer.
5. the preparation method of quartzy ingot as claimed in claim 4, it is characterised in that the constant α calculates as follows：
α=a/ (1- η)；
Wherein, a is negative value of the gravity pressure that quartzy ingot is subject to the slope of highly linear change curve or uniform blanking when institute
State negative value of the quartzy ingot cross sectional radius with the slope of highly linear change curve；η is burn tinctuer.
6. the preparation method of quartzy ingot as claimed in claim 2, it is characterised in that in real time below measurement fusion sediment position
Size, slope of the quartzy ingot cross sectional radius with highly linear change curve is calculated in real time, using the negative value of the slope as institute
The adjustment amount of correction factor is stated, Real-time Feedback adjusts the correction factor.
7. a kind of preparation facilities of quartzy ingot, it is characterised in that controlled including rotation platform lifting motor, quartz raw material inventory
Device and host computer；The rotation platform lifting motor is connected with the host computer signal；The host computer and the quartz are former
Material injected volume controller signals are connected；
The host computer obtains the rotation platform lifting fall off rate that the rotation platform lifting motor provides, according to claim
Preparation method described in 1 to 6, the quartz raw material is controlled to feed intake the blanking speed of amount controller.
8. preparation facilities as claimed in claim 7, it is characterised in that also including dimension measuring device, be arranged at the outer stove of burner hearth
Thorax near exit, for detecting quartzy ingot hypomere size.
9. a kind of quartzy ingot is prepared with the control system that feeds intake, it is characterised in that including correction factor acquisition module, blanking velocity control
Molding block, quartzy ingot height assay module and quartzy ingot hypomere sectional dimension assay module；
The quartzy ingot height assay module, for obtaining the quartzy ingot height in deposition, and submit to the correction factor and obtain
Modulus block；
The quartzy ingot hypomere sectional dimension assay module, for obtaining in its hypomere sectional dimension of the quartzy ingot of deposition, and carry
Give the correction factor acquisition module；
The correction factor acquisition module, according to the quartzy ingot height and hypomere sectional dimension, the correction factor is determined,
And submit to the blanking velocity control module；
It is described descend rate control module, blanking velocity is calculated according to the correction factor and controls blanking.
10. quartzy ingot as claimed in claim 9 is prepared with the control system that feeds intake, it is characterised in that the quartz height is examined and determine
Module is connected with the blanking velocity control module, and mould is controlled by the blanking velocity is highly submitted in the quartzy ingot of deposition
Block；
The blanking control module judges whether to recalculate correction factor：
When the quartzy ingot is highly less than or equal to default sectional dimension change critical altitude, correction factor is recalculated；
Otherwise correction factor is not recalculated.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109437551A (en) * | 2018-12-12 | 2019-03-08 | 长飞光纤光缆股份有限公司 | A method of high purity quartz material is prepared using tailing |
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| CN103387330A (en) * | 2013-07-30 | 2013-11-13 | 湖北菲利华石英玻璃股份有限公司 | Quantitative starting method for producing quartz glass ingots |
| CN204874270U (en) * | 2015-08-10 | 2015-12-16 | 湖北菲利华石英玻璃股份有限公司 | A vertical deposition furnace for producing synthetic quartz glass spindle of jumbo size |
| CN206375814U (en) * | 2017-01-18 | 2017-08-04 | 锦州新世纪石英玻璃有限公司 | The post forming device of the quartzy ingot quality of lifting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437551A (en) * | 2018-12-12 | 2019-03-08 | 长飞光纤光缆股份有限公司 | A method of high purity quartz material is prepared using tailing |
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