CN105837009A - Glass forming mold and forming device, and glass forming method - Google Patents
Glass forming mold and forming device, and glass forming method Download PDFInfo
- Publication number
- CN105837009A CN105837009A CN201610162062.1A CN201610162062A CN105837009A CN 105837009 A CN105837009 A CN 105837009A CN 201610162062 A CN201610162062 A CN 201610162062A CN 105837009 A CN105837009 A CN 105837009A
- Authority
- CN
- China
- Prior art keywords
- glass
- heater
- material leakage
- shaping dies
- forming device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a glass forming mold and forming device, and a glass forming method, wherein the glass forming mold is composed of a bottom mold and a side mold detachably connected with the bottom mold, the side mold is a cylinder formed by splicing a plurality of arc-shaped side mold plates, and the bottom mold is formed by splicing a plurality of bottom mold plates. The problem that a conventional device and method cannot prepare large-size and high-optical-quality borosilicate glass is solved, and preparation of large-size and high-optical-quality borosilicate glass is realized.
Description
Technical field
The present invention relates to glass manufacturing area, be specifically related to the shaping dies of a kind of glass and forming device and the shaping of glass
Method.
Background technology
Along with the fast development of contemporary optics, optical homogeneity and the dimensions of lens material are proposed more by optical design
The Pyrex of large scale, high optical homogeneity are especially had urgent needs by high request.Pyrex viscosity is big,
Material property is long, and shaping is one of its critical process prepared.At present, the forming mode of Pyrex mainly has and three kinds: one is
Preparing glass substrate by float glass process or overflow manner, substrate has double Free Surface, and flatness is high, can exempt follow-up grinding
Polishing, and the day production capacity of this manufacturing process is relatively big, yield >=5 ton day, it is adaptable to industrialized production, but the party
Method is only limitted to prepare glass substrate, maximum gauge≤30mm；Two is to prepare borosilicate glass by material leakage and by traction apparatus
Glass billot, glass billot optical homogeneity prepared by the method is high, without striped, but due to by glass viscosity and forming device
Limit, glass billot sectional area less (≤80 × 40mm), it is impossible to prepare the Pyrex of large scale, super thick；Three
Being to use casting method directly to shape on heating mould, the method can prepare large scale (such as 1000 × 750mm)
Pyrex, but be easily caused glass pouring cast bar stricture of vagina and produce, have a strong impact on optical quality, so affect thickness of glass (≤
40mm)。
Summary of the invention
The embodiment of the present application, by providing the shaping dies of a kind of glass and forming device and the manufacturing process of glass, solves
The problem that existing apparatus and method cannot prepare the Pyrex of large scale and high optical quality, it is achieved that large scale and Gao Guang
Learn the preparation of the Pyrex of quality.
For reaching above-mentioned purpose, present invention generally provides following technical scheme:
On the one hand, embodiments providing the shaping dies of a kind of glass, described shaping dies is by bed die and and bed die
The side form composition removably connected, described side form is the cylinder being spliced to form by polylith circular arc side template, described bed die
It is spliced by polylith end template.
As preferably, the upper surface of described bed die is provided with groove, and described groove can realize the glass at groove internal shaping from recessed
In groove, the demoulding is taken out.
As preferably, the material of described shaping dies is silicon nitride.
On the other hand, the embodiment of the present invention additionally provides the forming device of a kind of glass, and described forming device includes above-mentioned
Shaping dies；Described forming device also includes that body of heater, described body of heater are closed body of heater, in heating is to maintain body of heater
Temperature；Described shaping dies is positioned at described body of heater；The upper surface of described body of heater is provided with downward through hole, for glass
When material leakage shapes, material leakage pipe is inserted in body of heater, and makes the vitreous humour in material leakage pipe leak in shaping dies.
As preferably, described body of heater is positioned at the outer wall of through hole and is provided with sideboard, and described sideboard is used for closing institute
State through hole.
As preferably, described body of heater is positioned at the inwall of through hole and is provided with cutting knife, movable tray and water-cooling system, described in cut
Cutter cuts off the glass fluid column that material leakage pipe spills at the end of shaping, and described movable tray collects material leakage after shaping terminates
The residue vitreous humour that pipe spills, described cutting knife is positioned on movable tray, and described water-cooling system is at glass forming process
In cutting knife and movable tray are cooled down, to protect cutting knife and pallet the most normally to work.
As preferably, described forming device also includes that diastimeter, described diastimeter are positioned at outside body of heater and connect with material leakage pipe outer wall
Connect, measure material leakage infratubal port and the distance of metal level in shaping dies in real time.
As preferably, described forming device also includes lifter and controls processor；Described lifter is positioned at bottom of furnace body；
Described control processor electrically connects with diastimeter and lifter respectively, and described control processor is for accepting the measurement of diastimeter
Data also send lifting instruction to lifter, and described lifter is for accepting to control the lifting instruction that processor sends, and root
According to the height of described lifting instruction regulating stove body, to realize the distance to metal level in shaping dies Yu material leakage infratubal port
It is controlled.
It addition, the embodiment of the present invention additionally provides the manufacturing process of a kind of glass, described method uses above-mentioned forming device,
Said method comprising the steps of:
(1) first body of heater is heated up before shaping, after vitreous humour homogenizing is complete, material leakage pipe is heated, make glass
Liquid spills from material leakage pipe, and collects the vitreous humour spilt；
(2) after the vitreous humour steady quality that material leakage pipe spills, rise furnace body, make material leakage pipe be inserted in body of heater, and
Vitreous humour is made to drain in shaping dies；
(3) after the blank being cast into required size, fall body of heater, make material leakage pipe remove in body of heater, terminate to shape
Material leakage in mould also collects the residue vitreous humour that material leakage pipe spills, re-closed body of heater；
(4) body of heater is lowered the temperature, be down to annealing point and be incubated, so that molding glass is carried out black annealing；
(5) cooling body of heater is to room temperature, the glass demoulding after black annealing is taken out, carries out fine annealing.
As preferably, in described step (1), before heating up body of heater, the inner surface at shaping dies sprays one layer
Boron nitride powder.
As preferably, during the material leakage of described step (2), material leakage infratubal port and metal level in shaping dies
Distance controlling is at 10-15mm.
As preferably, in described step (4), rate of temperature fall≤1 DEG C of body of heater/min.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage:
1. the shaping dies of the glass that the embodiment of the present application provides is spliced by polylith end template and side template and side form sets
For cylinder, solve the technical barrier of the large scale molding glass demoulding, substantially increase the large scale molding glass demoulding
Easily degree, it is ensured that the optical quality of large scale molding glass；
2. the forming device of the glass that the embodiment of the present application provides is by arranging groove and arranging work on body of heater on bed die
Dynamic pallet, solves material leakage stub bar and the problem of material tail collection respectively, improves the overall optical qualities of molding glass；Logical
Cross and diastimeter, lifter and control processor are set, the problem producing glass cord when solving material leakage, improve glass
Optical homogeneity；Achieve forming of glass by closed body of heater integrated with annealing, both meet Pyrex
Large scale shapes and controls, and turn avoid the problem that chunk glass edge bursts, can realize the boron of large scale and high optical quality
The preparation of silica glass.
Accompanying drawing explanation
Fig. 1 is the structural representation of the shaping dies of the glass of the embodiment of the present invention；
Fig. 2 is the structural representation of the forming device of the glass of the embodiment of the present invention.
Detailed description of the invention
By further illustrating the technological means and effect that the present invention taked by reaching predetermined goal of the invention, below in conjunction with attached
Figure and preferred embodiment, to according to the detailed description of the invention of the present patent application, structure, feature and effect thereof, describe in detail
As rear.In the following description, what different " embodiments " or " embodiment " referred to is not necessarily same embodiment.This
Outward, special characteristic, structure or the feature in one or more embodiment can be combined by any suitable form.
As it is shown in figure 1, embodiments provide the shaping dies of a kind of glass, this shaping dies by bed die 1 and with
The side form 2 that bed die removably connects forms, and side form is the cylinder being spliced to form by polylith circular arc side template, bed die by
Polylith end template is spliced.The bed die of the shaping dies that the embodiment of the present invention provides and side form, can be square for removably connecting
Just the demoulding after large-size glass shapes；Side form is the cylinder being spliced to form by polylith circular arc side template, due to cylinder
Side form uniform force, and use splicing construction side form entirety can be resolved into the demoulding behind zonule, substantially increase big chi
The easy degree of the very little molding glass demoulding；Bed die is spliced by polylith end template, can realize the regional area of Glass base
The demoulding, also makes the bottom demoulding be easier to, ensures that the optical quality that large-size glass shapes.The embodiment of the present invention is excellent
Selecting bed die is two pieces of semicircle end templates or the circular bed die of polylith sector-shaped bottom template splicing formation, and the splicing of bed die can be made to pacify
Fill easier, and the bed die of circle and cylindrical side form match, and can save mold materials；The most
The size of block sector-shaped bottom template is identical.The embodiment of the present invention is preferably spliced into the size phase of the polylith circular arc side template of side form
With.
Preferred as above-described embodiment, the upper surface of above-mentioned bed die is provided with groove, and this groove can realize at groove internal shaping
Glass in groove the demoulding take out.The width of the longitudinal cross-section profile of the preferred groove of the embodiment of the present invention from bottom land to notch
The most equal or be gradually increased.The embodiment of the present invention arranges groove at the upper surface of bed die, leaks to one-tenth from material leakage pipe for collecting
Leading portion vitreous humour in shape mould, owing to this general forming quality of leading portion vitreous humour is poor, is collected in this groove,
It is easy to glass excision poor for this part mass after forming of glass, it is ensured that the total quality of forming of glass.Above-mentioned groove
The width of longitudinal cross-section profile the most equal from bottom land to notch or be gradually increased, can realize groove internal shaping glass from
In groove, the demoulding is taken out.The preferred groove of the embodiment of the present invention is positioned at the center of bed die upper surface, and the leakage of material leakage pipe can be made to shaping
After leading portion vitreous humour in mould has been collected, when the follow-up vitreous humour spilt spreads to surrounding in bed die center, suffered
The drag uniform arrived is consistent, thus avoids the generation of glass cord, improves the optical homogeneity of forming of glass；The present invention
The width of the longitudinal cross-section profile of the preferred groove of embodiment is gradually increased to notch from bottom land, and the glass in groove can be made more to hold
Easily the demoulding is taken out, and the preferably notch of groove is taper seat for circular and cell wall, can make vitreous humour uniform force in groove,
It is readily formed the rear demoulding；The preferably gradient of groove cell wall is 45 °.
Preferred as above-described embodiment, the material of above-mentioned shaping dies is silicon nitride.The shaping that the embodiment of the present invention provides
Mould uses silicon nitride material, and when Pyrex liquid can be avoided to shape in shaping dies, melt sticks to the pan, thus avoids glass
Produce during cooling and burst.
As in figure 2 it is shown, the embodiment of the present invention additionally provides the forming device of a kind of glass, this forming device includes above-mentioned
Shaping dies；This forming device also includes body of heater 3, and this body of heater is closed body of heater, in heating is to maintain body of heater
Temperature；Above-mentioned shaping dies is positioned at this body of heater；The upper surface of above-mentioned body of heater is provided with downward through hole, for glass material leakage
During shaping, material leakage pipe 4 is inserted in body of heater, and makes the vitreous humour in material leakage pipe leak in shaping dies.Above-mentioned body of heater leads to
Crossing heating and can maintain vitreous humour temperature required for shaping dies internal shaping, this body of heater is closed body of heater, can make body of heater
Interior temperature keeps stable, and the glass that can realize in shaping dies is heated evenly, and can avoid owing to glass temperature is uneven
And occur that edge bursts or the medium problem of stress collection, this forming device be particularly suited for shape large-size glass, can avoid because of
Glass size is big and produces the problem that bottom can not reach requirement with edge shaping temperature simultaneously；It addition, this closed body of heater
Also can realize forming of glass integrated with annealing, after forming of glass, this body of heater directly be lowered the temperature, the glass in shaping dies
Blank can realize black annealing in this body of heater, and the large scale both having met Pyrex shapes control, when turn avoid annealing
Glass cooling is uneven and the problems such as edge bursts occurs.The through hole of the embodiment of the present invention preferred body of heater upper surface is positioned at bed die
The surface of upper groove, may be implemented in material leakage pipe when being inserted in body of heater, uses groove to collect the leading portion vitreous humour spilt.
Preferred as above-described embodiment, above-mentioned body of heater is positioned at the outer wall of through hole and is provided with sideboard 5, this active catch
Plate is used for closing this through hole；The embodiment of the present invention seals the through hole on body of heater, in can making body of heater by using sideboard
Temperature is more stable, beneficially the forming of glass in body of heater and annealing.This sideboard is positioned at body of heater through hole when not using
Outer wall on, move it to during use realize above through hole through hole is closed, preferably this sideboard and furnace body outer wall
By rotary shaft, rail plate or chain connection, to facilitate the unlatching and closing realizing through hole.On above-mentioned sideboard also
It is placed with catcher, for collecting the dead metal that material leakage pipe has just started to spill during material leakage.
Preferred as above-described embodiment, above-mentioned body of heater is positioned at the inwall of through hole and is provided with cutting knife 6, movable tray 7 and
Water-cooling system, this cutting knife cuts off the glass fluid column that material leakage pipe spills at the end of shaping, and movable tray terminates for shaping
The residue vitreous humour that rear collection material leakage pipe spills, above-mentioned cutting knife is positioned on movable tray, and above-mentioned water-cooling system is at glass
Cutting knife and movable tray are cooled down by glass forming process, to protect cutting knife and pallet the most normally to work.Above-mentioned
Cutting knife can be connected by rotary shaft or rail plate with inboard wall of furnace body, and above-mentioned movable tray and inboard wall of furnace body can pass through rotary shaft
Or rail plate connects, cutting knife and movable tray are positioned at below inboard wall of furnace body time not actuated, cut off material leakage pipe when cutting knife starts
Being retracted to below inboard wall of furnace body after the glass fluid column spilt, movable tray moves to immediately below through hole when starting again；Above-mentioned cutting knife
It is positioned on movable tray, cutting knife can be realized cutting off the moment free pallet removed after glass fluid column and can collect the leakage of material leakage pipe
The residue vitreous humour gone out.The embodiment of the present invention passes through cutting knife and movable tray, effectively solves residue glass when material leakage shapes
The quick collection of glass liquid, it is to avoid the quality of molding glass is impacted at the end of material leakage by it.
Preferred as above-described embodiment, above-mentioned forming device also includes diastimeter 8, this diastimeter be positioned at body of heater outer and with
Material leakage pipe outer wall connects, and measures material leakage infratubal port and the distance of metal level in shaping dies in real time.The present invention is real
Execute material leakage infratubal port and the distance of metal level that example can be measured in real time according to diastimeter, to the height of body of heater in forming process
Degree is adjusted, it is achieved the distance controlling of material leakage infratubal port and metal level within the specific limits, to avoid under material leakage pipe
Port is the least with the distance of metal level makes vitreous humour block at material leakage interruption-forming, is unfavorable for that vitreous humour shapes, or avoids Lou
Material infratubal port makes the most greatly glass produce striped with the distance of metal level, affects optical quality.
Preferred as above-described embodiment, above-mentioned forming device also includes lifter 9 and controls processor 10；This lifter
It is positioned at bottom of furnace body；This control processor electrically connects with diastimeter and lifter respectively, controls processor and is used for accepting range finding
The measurement data of instrument also sends lifting instruction to lifter, and lifter controls the lifting instruction that processor sends for accepting,
And according to the height of lifting instruction regulating stove body, to realize the distance to metal level in shaping dies Yu material leakage infratubal port
It is controlled.The lifter that the embodiment of the present invention provides can be electric elevator, to realize accepting to control what processor sent
Lifting instruction, and the height of body of heater it is automatically adjusted according to lifting instruction；Control processor by accepting the measurement number of diastimeter
According to, then measurement data and the setting value controlling processor are compared analysis, thus generate lifting instruction concurrently to lifting
Device, this setting value is expection span of control or the expection controlling value of the distance of metal level and material leakage infratubal port；The present invention
Diastimeter, lifter and control processor three in embodiment forming device cooperate, can realize to metal level with
The procedure auto-control of the distance of material leakage infratubal port, not only has higher control accuracy, and easy to operate.
Preferred as above-described embodiment, above-mentioned body of heater includes furnace shell, refractory masses 11, heating element heater 12 and thermoelectricity
Even 13, this refractory masses is located at inside furnace shell, and this refractory masses surface is provided with fluting, and above-mentioned heating element heater is inlayed
In this fluting, above-mentioned thermocouple is multiple, and the plurality of thermocouple is evenly distributed on the refractory masses of inboard wall of furnace body；
Preferential thermocouple is at least 2, to guarantee that thermal evenness controlling in body of heater is at ± 1 DEG C；The material of preferential furnace shell is
Heat-resistance stainless steel sheet material；The preferably side of body of heater is provided with fire door, laying and taking out and carrying out in stove for shaping dies
Operation；The material of preferential refractory masses is corundum-mullite；Preferably heating element heater uses nickel-chromium resistance wire, its heating
Maximum temperature can meet, to 1200 DEG C, the temperature requirement that Pyrex shape；Preferably heating element heater is multiple, and these are many
Individual heating element heater is evenly distributed on refractory masses, it can be ensured that the temperature in body of heater can control uniformly.
The above-mentioned shaping dies of embodiment of the present invention offer and forming device are except shaping large-sized Pyrex, it is possible to
Shape other large-sized high-viscosity glass.
Following example use above-mentioned forming device to carry out the shaping of Pyrex.
Embodiment 1
A diameter of 800mm of shaping dies in the forming device that the present embodiment uses；The present embodiment carries out material leakage shaping
Pyrex are made up of the component of following weight percentage: 68%SiO2, 19%B2O3, 3%Al2O3, 4.2%Na2O、
5%K2O, 0.6%ZnO and 0.2%Sb2O3；
The method that above-mentioned Pyrex are formed by the present embodiment comprises the following steps:
(1) frit in said components be fused into vitreous humour homogenizing completely before 3h time, at shaping dies
The inner surface of side form and inner surface one layer of boron nitride powder of spraying of bed die, open water-cooling system, then heat up body of heater,
Temperature in body of heater controls at 850 DEG C, and temperature-controlled precision is ± 1 DEG C；
(2), after vitreous humour homogenizing is complete, uses oxyhydrogen flame that material leakage pipe is quickly heated, make vitreous humour from material leakage pipe
In spill, in the vitreous humour leakage that will spill to the catcher placed on sideboard；Treat the vitreous humour quality that material leakage pipe spills
After Wen Ding, adjust the horizontal level of lifter and start lifter, quickly rising furnace body, make material leakage pipe be inserted in body of heater,
And guarantee that vitreous humour leaks to the groove of bed die；Start while starting lifter and control processor and diastimeter, wherein control
The setting value of processor processed is 10mm, i.e. guarantees that the material leakage infratubal port distance controlling with metal level is at 10mm；
(3) after being cast into the chunk glass of Φ 800 × 80mm size, quick smoothly fall body of heater, make material leakage pipe
Removing in body of heater, the most quickly start cutting knife and movable tray, the glass fluid column of material leakage infratubal port is cut by cutting knife
Have no progeny, make residue vitreous humour escape in movable tray；Removing the catcher on sideboard again, employing sideboard will
Through hole on body of heater seals；
(4) body of heater is lowered the temperature, be down to during annealing point 520 DEG C be incubated 8h again, so that molding glass is carried out black annealing,
Wherein rate of temperature fall is 1 DEG C/min；
(5) close body of heater after black annealing completes, after body of heater is cooled to room temperature, the glass demoulding after black annealing taken out,
Fine annealing is carried out after the upper and lower surface of glass being exchanged.
Embodiment 2
A diameter of 900mm of shaping dies in the forming device that the present embodiment uses；The present embodiment carries out material leakage shaping
Pyrex are made up of the component of following weight percentage: 74.4%SiO2, 18%B2O3, 1%Al2O3, 1.7%Na2O,
4.2%K2O, 0.3%BaO and 0.4%Sb2O3；
The method that above-mentioned Pyrex are formed by the present embodiment comprises the following steps:
(1) frit in said components be fused into vitreous humour homogenizing completely before 5h time, at shaping dies
The inner surface of side form and inner surface one layer of boron nitride powder of spraying of bed die, open water-cooling system, then heat up body of heater,
Temperature in body of heater controls at 820 DEG C, and temperature-controlled precision is ± 1 DEG C；
(2), after vitreous humour homogenizing is complete, uses oxyhydrogen flame that material leakage pipe is quickly heated, make vitreous humour from material leakage pipe
In spill, in the vitreous humour leakage that will spill to the catcher placed on sideboard；Treat the vitreous humour quality that material leakage pipe spills
After Wen Ding, adjust the horizontal level of lifter and start lifter, quickly rising furnace body, make material leakage pipe be inserted in body of heater,
And guarantee that vitreous humour leaks to the groove of bed die；Start while starting lifter and control processor and diastimeter, wherein control
The setting value of processor processed is 12mm, i.e. guarantees that the material leakage infratubal port distance controlling with metal level is at 12mm；
(3) after being cast into the chunk glass of Φ 900 × 100mm size, quick smoothly fall body of heater, make material leakage
Pipe removes in body of heater, the most quickly starts cutting knife and movable tray, and cutting knife is by the glass fluid column of material leakage infratubal port
After cut-out, residue vitreous humour is made to escape in movable tray；Remove the catcher on sideboard again, use sideboard
Through hole on body of heater is sealed；
(4) body of heater is lowered the temperature, be down to during annealing point 560 DEG C be incubated 10h again, so that molding glass slightly to be moved back
Fire, wherein rate of temperature fall is 0.5 DEG C/min；
(5) close body of heater after black annealing completes, after body of heater is cooled to room temperature, the glass demoulding after black annealing taken out,
Fine annealing is carried out after the upper and lower surface of glass being exchanged.
Embodiment 3
A diameter of 700mm of shaping dies in the forming device that the present embodiment uses；The present embodiment carries out material leakage shaping
Pyrex are made up of the component of following weight percentage: 80%SiO2, 12.5%B2O3, 2.5%Al2O3, 3.1%Na2O、
1%K2O, 0.3%BaO and 0.6%Sb2O3；
The method that above-mentioned Pyrex are formed by the present embodiment comprises the following steps:
(1) frit in said components be fused into vitreous humour homogenizing completely before 6h time, at shaping dies
The inner surface of side form and inner surface one layer of boron nitride powder of spraying of bed die, open water-cooling system, then heat up body of heater,
Temperature in body of heater controls at 1000 DEG C, and temperature-controlled precision is ± 1 DEG C；
(2), after vitreous humour homogenizing is complete, uses oxyhydrogen flame that material leakage pipe is quickly heated, make vitreous humour from material leakage pipe
In spill, in the vitreous humour leakage that will spill to the catcher placed on sideboard；Treat the vitreous humour quality that material leakage pipe spills
After Wen Ding, adjust the horizontal level of lifter and start lifter, quickly rising furnace body, make material leakage pipe be inserted in body of heater,
And guarantee that vitreous humour leaks to the groove of bed die；Start while starting lifter and control processor and diastimeter, wherein control
The setting value of processor processed is 15mm, i.e. guarantees that the material leakage infratubal port distance controlling with metal level is at 15mm；
(3) after being cast into the chunk glass of Φ 700 × 60mm size, quick smoothly fall body of heater, make material leakage pipe
Removing in body of heater, the most quickly start cutting knife and movable tray, the glass fluid column of material leakage infratubal port is cut by cutting knife
Have no progeny, make residue vitreous humour escape in movable tray；Removing the catcher on sideboard again, employing sideboard will
Through hole on body of heater seals；
(4) body of heater is lowered the temperature, be down to during annealing point 720 DEG C be incubated 10h again, so that molding glass slightly to be moved back
Fire, wherein rate of temperature fall is 0.8 DEG C/min；
(5) close body of heater after black annealing completes, after body of heater is cooled to room temperature, the glass demoulding after black annealing taken out,
Fine annealing is carried out after the upper and lower surface of glass being exchanged.
Comparative example 1
This comparative example uses forming device same as in Example 1 to form Pyrex, and borosilicate glass formed thereby
The component of glass is same as in Example 1；This comparative example to Pyrex shape during, except by material leakage infratubal port with
The distance controlling of metal level is outside 18mm, and other operating procedure and condition are all with embodiment 1.
Comparative example 2
This comparative example uses forming device same as in Example 1 to form Pyrex, and borosilicate glass formed thereby
The component of glass is same as in Example 1；This comparative example is during shaping Pyrex, except the fall of black annealing front furnace body
Temperature speed is outside 10 DEG C/min, and other operating procedure and condition are all with embodiment 1.
The glass that above-described embodiment and comparative example shape, after fine annealing processes, observes blank apparent mass；Again through optics
After processing, by GB/T7962.3-2010 standard detection optical homogeneity, by GB/T7962.7-2010 standard detection striped
Degree, by GB/T7962.5-2010 standard detection stress birfringence, obtains testing result as shown in table 1.
The performance test results of table 1. molding glass
As it can be seen from table 1 the embodiment of the present invention and comparative example glass formed thereby are diameter >=700mm, thickness >=
The large scale of 60mm and the bigger Pyrex of viscosity, the Pyrex that wherein embodiment is formed thereby are respectively provided with good table
Appearance quality, striped degree is good, and has higher optical homogeneity；And comparative example 1 increases material leakage infratubal port and glass
After the command range of liquid level, glass cord degree formed thereby is poor, and stress birfringence is higher, i.e. there is obvious stress collection
Midpoint；Lowering the temperature body of heater with rate of temperature fall faster in comparative example 2, glass edge formed thereby bursts, striped degree
Difference, and double-refraction value of stress is the highest.Above-mentioned comparative illustration, forming device and manufacturing process that the present invention provides can shape
Large scale and the Pyrex of high optical quality.
The embodiment of the present invention is before heating up to body of heater, and the inner surface at shaping dies sprays one layer of boron nitride powder, prevents
Shaping dies is corroded by Pyrex liquid, the beneficially demoulding after forming of glass, it is to avoid when cooling, glass occurs because glass sticks to the pan
Glass blank bursts.
The embodiment of the present invention is during forming of glass, when material leakage pipe is inserted in body of heater, it is ensured that vitreous humour leaked the end of to
In the groove of mould, be inserted in body of heater due to material leakage pipe during, the vitreous humour striped spilt is more, and optics is equal
Even property is poor, is leaked to the groove of bed die, can be excised, thus avoid shadow in the post-production after forming of glass
Ring the overall optical qualities of glass.
The distance controlling of material leakage infratubal port Yu metal level, during material leakage shapes, is existed by the embodiment of the present invention
10-15mm, can avoid the glass shaped to produce striped, improve the optical homogeneity of glass, when material leakage infratubal port and glass
When the command range of glass liquid level is less than 10mm, owing to Pyrex fluid viscosity is big, easily block at material leakage interruption-forming, unfavorable
Shape in vitreous humour；When the command range of material leakage infratubal port with metal level is more than 15mm, spill from material leakage pipe
Metal level in shaping dies is impacted and increases by vitreous humour, causes glass cord substantially to increase, reduces the optics of glass
Uniformity, this is confirmed by the result of above-mentioned comparative example 1.
Body of heater, before to molding glass black annealing, is first lowered the temperature by the embodiment of the present invention, wherein rate of temperature fall≤1 DEG C of body of heater
/ min, is owing to the body of heater too fast meeting of cooling causes the internal-external temperature difference of the chunk glass in shaping dies relatively greatly, thus easily leads
Causing chunk glass edge to burst, the result of above-mentioned comparative example 2 has contrasted and has been confirmed, and when the cooling speed of body of heater
During rate≤1 DEG C/min, the problems referred to above can be avoided.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to preferably
The present invention has been described in detail by embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained
In the middle of scope of the presently claimed invention.
Claims (12)
1. the shaping dies of a glass, it is characterised in that described shaping dies is by bed die and detachable with bed die
The side form composition connected, described side form is the cylinder being spliced to form by polylith circular arc side template, described bed die
It is spliced by polylith end template.
The shaping dies of glass the most according to claim 1, it is characterised in that the upper surface of described bed die
Being provided with groove, described groove can realize taking out in glass demoulding in groove of groove internal shaping.
The shaping dies of glass the most according to claim 1, it is characterised in that the material of described shaping dies
Matter is silicon nitride.
4. the forming device of a glass, it is characterised in that described forming device includes that claim 1-3 is arbitrary
Shaping dies described in Xiang；Described forming device also includes that body of heater, described body of heater are closed body of heater, is used for adding
Heat is with the temperature in maintenance body of heater；Described shaping dies is positioned at described body of heater；The upper surface of described body of heater is provided with
Downward through hole, when glass material leakage shapes, material leakage pipe is inserted in body of heater, and makes the vitreous humour in material leakage pipe
Leak in shaping dies.
The forming device of glass the most according to claim 4, it is characterised in that described body of heater is positioned at through hole
The outer wall at place is provided with sideboard, and described sideboard is used for closing described through hole.
The forming device of glass the most according to claim 4, it is characterised in that described body of heater is positioned at through hole
The inwall at place is provided with cutting knife, movable tray and water-cooling system, and described cutting knife cuts off material leakage at the end of shaping
The glass fluid column that pipe spills, the described movable tray residue vitreous humour that collection material leakage pipe spills after shaping terminates,
Described cutting knife is positioned on movable tray, and described water-cooling system is used in glass forming process cutting knife and activity
Pallet cools down, to protect cutting knife and pallet the most normally to work.
The forming device of glass the most according to claim 4, it is characterised in that described forming device also wraps
Including diastimeter, described diastimeter is positioned at outside body of heater and is connected with material leakage pipe outer wall, measures under material leakage pipe in real time
Port and the distance of metal level in shaping dies.
The forming device of glass the most according to claim 7, it is characterised in that described forming device also wraps
Include lifter and control processor；Described lifter is positioned at bottom of furnace body；Described control processor respectively with range finding
Instrument and lifter electrical connection, described control processor is for accepting the measurement data of diastimeter and sending to lifter
Lifting instruction, the lifting instruction that described lifter sends for accepting control processor, and according to described lifting finger
The height of order regulation body of heater, to realize controlling the distance of metal level in shaping dies with material leakage infratubal port
System.
9. the manufacturing process of a glass, it is characterised in that described method uses any one of claim 4-8 institute
The forming device stated, said method comprising the steps of:
(1) first body of heater is heated up before shaping, after vitreous humour homogenizing is complete, material leakage pipe is heated,
Make vitreous humour spill from material leakage pipe, and collect the vitreous humour spilt；
(2) after the vitreous humour steady quality that material leakage pipe spills, rise furnace body, make material leakage pipe be inserted into stove
Internal, and make vitreous humour drain in shaping dies；
(3) after the blank being cast into required size, fall body of heater, make material leakage pipe remove in body of heater,
Terminate the material leakage in shaping dies and collect the residue vitreous humour that material leakage pipe spills, re-closed body of heater；
(4) body of heater is lowered the temperature, be down to annealing point and be incubated, so that molding glass is carried out black annealing；
(5) cooling body of heater is to room temperature, the glass demoulding after black annealing is taken out, carries out fine annealing.
Manufacturing process the most according to claim 9, it is characterised in that in described step (1), to stove
Before body heats up, the inner surface at shaping dies sprays one layer of boron nitride powder.
11. manufacturing process according to claim 9, it is characterised in that the material leakage mistake of described step (2)
Cheng Zhong, material leakage infratubal port and the distance controlling of metal level in shaping dies are at 10-15mm.
12. manufacturing process according to claim 9, it is characterised in that in described step (4), body of heater
Rate of temperature fall≤1 DEG C/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610162062.1A CN105837009B (en) | 2016-03-21 | 2016-03-21 | A kind of manufacturing process of the shaping dies and building mortion and glass of glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610162062.1A CN105837009B (en) | 2016-03-21 | 2016-03-21 | A kind of manufacturing process of the shaping dies and building mortion and glass of glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105837009A true CN105837009A (en) | 2016-08-10 |
| CN105837009B CN105837009B (en) | 2018-07-13 |
Family
ID=56588215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610162062.1A Active CN105837009B (en) | 2016-03-21 | 2016-03-21 | A kind of manufacturing process of the shaping dies and building mortion and glass of glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105837009B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673409A (en) * | 2016-12-21 | 2017-05-17 | 重庆天和玻璃有限公司 | Easily demoulded glass forming die |
| CN109095755A (en) * | 2018-08-16 | 2018-12-28 | 中国建筑材料科学研究总院有限公司 | The processing method of glass preform |
| CN110002737A (en) * | 2019-04-16 | 2019-07-12 | 湖南兴龙科技有限公司 | A method of glass is scrapped in taking-up |
| CN111825308A (en) * | 2019-04-19 | 2020-10-27 | 成都赛林斯科技实业有限公司 | Optical glass strip forming device |
| CN114853319A (en) * | 2022-05-26 | 2022-08-05 | 中国建筑材料科学研究总院有限公司 | Thick glass forming device and method |
| CN115806381A (en) * | 2022-12-06 | 2023-03-17 | 深圳市翔通光电技术有限公司 | Glass ceramic pouring forming process and glass ceramic |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1785401A1 (en) * | 2005-11-09 | 2007-05-16 | Heraeus Quarzglas GmbH & Co. KG | Silica vessel with nozzle and method of making |
| CN101186428A (en) * | 2007-12-26 | 2008-05-28 | 成都光明光电股份有限公司 | Shaping device for optical glass strip material and technique thereof |
| CN101347953A (en) * | 2004-01-20 | 2009-01-21 | 邱则有 | Shaping mold of members of mould shell |
| CN204022654U (en) * | 2014-08-28 | 2014-12-17 | 成都光明光电股份有限公司 | Glass-forming die |
| CN205088104U (en) * | 2015-11-02 | 2016-03-16 | 成都光明光电股份有限公司 | Optical glass billot forming device |
| CN205473346U (en) * | 2016-03-21 | 2016-08-17 | 中国建筑材料科学研究总院 | Glass's forming die and shaper |
-
2016
- 2016-03-21 CN CN201610162062.1A patent/CN105837009B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347953A (en) * | 2004-01-20 | 2009-01-21 | 邱则有 | Shaping mold of members of mould shell |
| EP1785401A1 (en) * | 2005-11-09 | 2007-05-16 | Heraeus Quarzglas GmbH & Co. KG | Silica vessel with nozzle and method of making |
| CN101186428A (en) * | 2007-12-26 | 2008-05-28 | 成都光明光电股份有限公司 | Shaping device for optical glass strip material and technique thereof |
| CN204022654U (en) * | 2014-08-28 | 2014-12-17 | 成都光明光电股份有限公司 | Glass-forming die |
| CN205088104U (en) * | 2015-11-02 | 2016-03-16 | 成都光明光电股份有限公司 | Optical glass billot forming device |
| CN205473346U (en) * | 2016-03-21 | 2016-08-17 | 中国建筑材料科学研究总院 | Glass's forming die and shaper |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673409A (en) * | 2016-12-21 | 2017-05-17 | 重庆天和玻璃有限公司 | Easily demoulded glass forming die |
| CN109095755A (en) * | 2018-08-16 | 2018-12-28 | 中国建筑材料科学研究总院有限公司 | The processing method of glass preform |
| CN110002737A (en) * | 2019-04-16 | 2019-07-12 | 湖南兴龙科技有限公司 | A method of glass is scrapped in taking-up |
| CN111825308A (en) * | 2019-04-19 | 2020-10-27 | 成都赛林斯科技实业有限公司 | Optical glass strip forming device |
| CN114853319A (en) * | 2022-05-26 | 2022-08-05 | 中国建筑材料科学研究总院有限公司 | Thick glass forming device and method |
| CN114853319B (en) * | 2022-05-26 | 2023-08-11 | 中国建筑材料科学研究总院有限公司 | Forming device and method for thick glass |
| CN115806381A (en) * | 2022-12-06 | 2023-03-17 | 深圳市翔通光电技术有限公司 | Glass ceramic pouring forming process and glass ceramic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105837009B (en) | 2018-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105837009A (en) | Glass forming mold and forming device, and glass forming method | |
| CN105693070B (en) | A kind of manufacturing process of the casting die and building mortion and glass of glass | |
| AU2015287465B2 (en) | Glass melting device comprising a furnace, a duct and a barrier | |
| CN107915394B (en) | Calcium-magnesium-aluminum-silicon building float glass-ceramic channel and use method thereof | |
| CN103987665B (en) | The manufacture method of glass substrate | |
| US10703664B2 (en) | Isopipe with curb at the compression end and method for forming a glass ribbon | |
| CN204198580U (en) | A kind of overflow downdraw produces the temperature-control device in base plate glass | |
| TW200301228A (en) | Manufacturing method and manufacturing apparatus for glass ball | |
| CN111375743B (en) | Casting device and precision casting method for high-temperature alloy part with complex structure | |
| CN104730087A (en) | Device for observing air bubbles in transparent layer of quartz glass crucible | |
| CN205473346U (en) | Glass's forming die and shaper | |
| CN208414249U (en) | The process units of seal glass | |
| CN205387540U (en) | Glass's forming die and former | |
| CN114853319B (en) | Forming device and method for thick glass | |
| CN202187089U (en) | Rapid feedback silicone fluid overflow monitoring device | |
| JP2015063436A (en) | Glass outflow device, glass outflow method, method for manufacturing glass molding and method for manufacturing optical element | |
| CN110814326B (en) | Formwork adjusting tool for vacuum solidification furnace and using method | |
| CN207175755U (en) | For producing the smelting apparatus of optical glass | |
| CN102583970A (en) | Method for founding sample glass under common laboratory condition | |
| CN104211282B (en) | A kind of optical glass forming mold | |
| CN108483920A (en) | The process units and method of seal glass | |
| CN109930023A (en) | Manufacturing method of large-tonnage chromium-zirconium-copper alloy | |
| CN218321125U (en) | Substrate glass thickness adjusting device | |
| CN114702232B (en) | Sheet glass and molding method and molding device thereof | |
| CN213022551U (en) | Mould and equipment for manufacturing glass sample |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |