CN108328913A - Toughened grass homogenizing processing method and tempered glass - Google Patents
Toughened grass homogenizing processing method and tempered glass Download PDFInfo
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- CN108328913A CN108328913A CN201810251004.5A CN201810251004A CN108328913A CN 108328913 A CN108328913 A CN 108328913A CN 201810251004 A CN201810251004 A CN 201810251004A CN 108328913 A CN108328913 A CN 108328913A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
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- Physics & Mathematics (AREA)
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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention belongs to tempered glass preparation method technical field more particularly to a kind of toughened grass homogenizing processing method and tempered glass.Toughened grass homogenizing processing method includes the following steps, S1：Original sheet glass is provided, original sheet glass is cut, the processing of edging and tempering；S2：Homogenization will be carried out in original sheet glass, homogenization process is made of temperature rise period, constant temperature stage and temperature-fall period；S3：Set 1.5 DEG C/s~4 DEG C of temperature rise period heating rate/s, 240 DEG C~300 DEG C, duration 1.5h~2.5h of setting constant temperature phase temperature, 0.02 DEG C/s~0.04 DEG C of setting temperature-fall period rate of temperature fall/s；S4：The original sheet glass for being cooled to 60 DEG C~70 DEG C is removed into homogeneous furnace and continues cool to room temperature.The above method effectively controls the temperature gradient in homogeneous furnace, ensure that quality of the tempered glass after homogenization by accurately limiting homogenization technological parameter.
Description
Technical field
The invention belongs to tempered glass preparation method technical field more particularly to a kind of toughened grass homogenizing processing method and
Tempered glass.
Background technology
Tempered glass after tempering processing, passage that the crystal structure of internal vulcanization nickel crystallite can be at any time and occur
Transformation, in transition process, cell volume will increase, and then internal stress is generated around it, when its internal stress accumulates to one
When fixed horizontal, it is possible to cause toughened glass self-explosion.
To prevent tempered glass from revealing in use, need tempering treated tempered glass in homogeneous furnace
Middle carry out homogenization carries out igniting test and eliminates remaining nickel sulfide by homogeneous furnace hot dipping principle.However, tempering glass
Homogenization parameter of the glass in homogeneous furnace is often more difficult to control, can lead to tempered glass interior tissue in homogenization in this way
Homogeneity decline, and then to the quality of tempered glass generate negative influence.
Invention content
The purpose of the present invention is to provide a kind of toughened grass homogenizing processing method and tempered glass, it is intended to solve existing skill
The technical issues of stability of toughened grass homogenizing processing procedure in art can not ensure.
To achieve the above object, the technical solution adopted by the present invention is：A kind of toughened grass homogenizing processing method, including with
Lower step：
S1：Original sheet glass is provided, the original sheet glass is cut, the processing of edging and tempering；
S2：Homogeneous furnace is provided, the original sheet glass is placed in the homogeneous furnace and carries out homogenization, the homogenization
It is made of temperature rise period, constant temperature stage and temperature-fall period；
S3：The heating rate of the temperature rise period is set as 1.5 DEG C/s~4 DEG C/s, sets the temperature in the constant temperature stage
240 DEG C~300 DEG C are maintained at, the duration in the constant temperature stage is set as 1.5h~2.5h, sets the temperature-fall period
Rate of temperature fall is 0.02 DEG C/s~0.04 DEG C/s；
S4：The original sheet glass for being cooled to 60 DEG C~70 DEG C is removed into the homogeneous furnace and continues cool to room temperature.
Further, the heating rate of the temperature rise period is 3 DEG C/s.
Further, the temperature in the constant temperature stage is maintained at 280 DEG C~300 DEG C.
Further, the duration in the constant temperature stage is 2h.
Further, the rate of temperature fall of the temperature-fall period is 0.035 DEG C/s.
Further, several thermocouples for measuring the original sheet glass temperature, each institute are provided in the homogeneous furnace
It states thermocouple to be distributed on the original sheet glass, and the model of each thermocouple is WRN-010/K types.
Further, control system is equipped in the homogeneous furnace, the heating system of the homogeneous furnace and the thermocouple are equal
It is electrically connected with the control system.
Further, the tempering treatment temperature is 570 DEG C~700 DEG C, in tempering processing, according to the glass
The thickness of former piece is persistently heated according to the heating time parameter of 50s~140s/mm.
Further, the intracavity bottom both sides of the homogeneous furnace are equipped with several air inlets, and the inner cavity top, which is equipped with, to be taken out
Wind turbine, the original sheet glass, which is placed in the inner cavity, carries out homogenization.
Beneficial effects of the present invention：The toughened grass homogenizing processing method of the present invention, during setting homogenization
The heating rate of temperature rise period be 1.5 DEG C/s~4 DEG C/s, then when original sheet glass carries out homogenization in homogeneous furnace,
Interior tissue just can obtain uniform heating, so as to avoid heating up too fast or leading to its interior tissue slowly during heating excessively
Homogeneity is poor.And by the way that the temperature in constant temperature stage is maintained at 240 DEG C~300 DEG C, and set duration in constant temperature stage as
1.5h~2.5h thus ensure that original sheet glass is in rational temperature range first.In the process, off quality
Tempered glass can reveal, so just realize and reject tempered glass not up to standard.And by setting the drop of temperature-fall period
Warm rate is 0.02 DEG C/s~0.04 DEG C/s, and the original sheet glass being in hot environment so just can relatively slowly gradually
Cooling, avoid tempered glass causes interior tissue the defects of micro-crack occur because cooling is too fast.In this way, the tempering glass of the present invention
Glass homogenization methods effectively control the temperature ladder in homogeneous furnace by the accurate restriction to homogenization technique parameters
It spends, ensure that the homogeneity of tempered glass interior tissue during homogenization, and then tempered glass has been effectively ensured equal
Matter treated quality.
Another technical solution that the present invention uses is：A kind of tempered glass, by above-mentioned toughened grass homogenizing processing method
It is prepared.
The tempered glass of the present invention, due to being made of above-mentioned toughened grass homogenizing processing method, and homogenization energy
It is enough to be rejected the tempered glass easily revealed, therefore the tempered glass of the present invention, anti-self-destruction ability in use is just
It is guaranteed, and since interior tissue homogeneity of tempered glass during homogenization can be guaranteed, Jin Erye
Quality of the tempered glass after homogenization has just been effectively ensured.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the process flow chart of toughened grass homogenizing processing method provided in an embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of Fig. 1 descriptions is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in Figure 1, toughened grass homogenizing processing method provided in an embodiment of the present invention, includes the following steps：
S1：Original sheet glass is provided, original sheet glass is cut, the processing of edging and tempering；
S2：Homogeneous furnace is provided, original sheet glass is placed in homogeneous furnace and carries out homogenization, homogenization by the temperature rise period,
Constant temperature stage and temperature-fall period composition；
S3：The heating rate of temperature rise period is set as 1.5 DEG C/s~4 DEG C/s, the temperature in setting constant temperature stage is maintained at 240
DEG C~300 DEG C, set duration in constant temperature stage as, set the rate of temperature fall of temperature-fall period as 0.02 DEG C/s~0.04 DEG C/
s；
S4：The original sheet glass for being cooled to 60 DEG C~70 DEG C is removed into homogeneous furnace and continues cool to room temperature.
Toughened grass homogenizing processing method provided in an embodiment of the present invention passes through the heating rank during setting homogenization
The heating rate of section is 1.5 DEG C/s~4 DEG C/s, then when original sheet glass carries out homogenization in homogeneous furnace, interior tissue
Just uniform heating can be obtained, so as to avoid heating up too fast or leading to its interior tissue homogeneity during heating slowly excessively
Difference.And then tempered glass is also ensured before reaching test temperature, it will not be due to and by the temperature in constant temperature stage be kept
At 240 DEG C~300 DEG C, and the duration for setting the constant temperature stage as 1.5h~2.5h, thus ensure that original sheet glass first
In rational temperature range, in the temperature range, nickel sulfide can be excited and be β phases from α inversion of phases, and then it is brilliant
Lattice expand so that the stress in tempered glass increases.In the process, tempered glass off quality will be because of nothing
Method is born the surge of internal stress and is revealed, and so will pass through homogenization realizes the mesh for rejecting tempered glass not up to standard
, it realizes and filters out up-to-standard tempered glass by homogenization.And by set the rate of temperature fall of temperature-fall period as
0.02 DEG C/s~0.04 DEG C/s, the original sheet glass being in hot environment so just relatively slowly can gradually cool down, in turn
The homogeneity that ensure that original sheet glass interior tissue in temperature-fall period, avoid tempered glass leads to internal group because cooling is too fast
The defects of weaving existing micro-crack ensure that the quality of tempered glass after homogenization.In this way, at the toughened grass homogenizing of the present invention
Reason method is effectively controlled the temperature gradient in homogeneous furnace, is ensured by the accurate restriction to homogenization technique parameters
The homogeneity of tempered glass interior tissue during homogenization, and then tempered glass has been effectively ensured after homogenization
Quality.
Further, the heating rate of temperature rise period can be 1.5 DEG C/s, 2.0 DEG C/s, 2.5 DEG C/s, 3.0 DEG C/s, 3.5 DEG C
/ s or 4.0 DEG C/s.In this way, being limited to this relatively narrow temperature of 1.5 DEG C/s~4.0 DEG C/s by will heat up the heating rate in stage
In section, ensure that heating rate of tempered glass during homogenization is reasonable in this way, interior tissue can obtain
It is uniformly heated up.Avoid and heated up slow and its interior tissue is caused superheating phenomenon occur, at the same also avoid heating up it is too fast and
Its interior tissue is caused the uneven phenomenon of heating occur.
Further, the tapping temperature of tempered glass can be：60℃、61℃、62℃、63℃、64℃、 65℃、66℃、
67 DEG C, 68 DEG C, 69 DEG C or 70 DEG C.In this way, being come out of the stove by the way that tempered glass to be set in the temperature range, ensure that so
Treated that tempered glass can enter room temperature environment with suitable temperature for matter, avoid the tempered glass after homogenization with
Extraneous temperature gradient is excessive and causes the increase of tempered glass internal stress.
In the present embodiment, as shown in Figure 1, the heating rate of temperature rise period is 3 DEG C/s.Specifically, by will heat up rank
The heating rate of section is limited to 3 DEG C/s, just on the one hand ensure that heating efficiency of the tempered glass in the homogenization stage reaches in this way
To whole efficiency that is optimal, and then improving toughened grass homogenizing processing.On the other hand the inside group of tempered glass is in turn ensured
Being woven in the temperature rise period can be uniformly heated up, and the interior tissue for avoiding tempered glass occurs heating not during heating
Uniform phenomenon.In this way, being limited to 3 DEG C/s by will heat up the heating rate in stage, guarantee heating efficiency has just been taken into account in this way
It is uneven with avoiding tempered glass interior tissue from heating.
In the present embodiment, the temperature in constant temperature stage is maintained at 280 DEG C~300 DEG C.Specifically, the temperature in constant temperature stage can
For 280 DEG C, 281 DEG C, 282 DEG C, 283 DEG C, 284 DEG C, 285 DEG C, 286 DEG C, 287 DEG C, 288 DEG C, 289 DEG C, 290 DEG C, 291 DEG C,
292 DEG C, 293 DEG C, 294 DEG C, 295 DEG C, 296 DEG C, 297 DEG C, 298 DEG C, 299 DEG C or 300 DEG C.
In this way, by the way that the temperature in constant temperature stage is maintained at 280 DEG C~300 DEG C, then the temperature range just can be more
Be stimulated and the temperature range of phase transformation close to nickel sulfide, so just more effectively simulate tempered glass in use its
Interior nickel sulfide is excited and the process of phase transformation, then in the temperature range, the nickel sulfide in tempered glass excited and
It undergoes phase transition, and then generates internal stress around it, tempered glass off quality will occur under the action of internal stress
Explosion, so just effectively eliminates tempered glass off quality.
Preferably, the temperature in constant temperature stage is maintained at 290 DEG C, and the temperature value is stimulated and phase transformation close to nickel sulfide the most
Temperature.So in the temperature range in the constant temperature stage, most of tempered glass off quality will be revealed, such as
This just significantly reduces the self-destruction rate of the tempered glass by homogenization in use, is effectively guaranteed tempered glass
Use quality and safety.
In the present embodiment, as shown in Figure 1, the duration in constant temperature stage is 2h.Specifically, by by the constant temperature stage
Duration advanced optimizes as 2h, and the constant temperature stage on the one hand avoiding homogenization in this way occupies the excessive time, in turn
It ensure that the efficiency of homogenization.On the other hand it is enough to also ensure that tempered glass maintains under 290 DEG C of temperature levels
Time, and then the nickel sulfide for making it internal is fully undergone phase transition, the so time in the constant temperature stage for fully considering homogenization
Under conditions of factor and temperature factor, tempered glass off quality just can be efficiently weeded out.
In the present embodiment, as shown in Figure 1, the rate of temperature fall of temperature-fall period is 0.035 DEG C/s.Specifically, by that will drop
The rate of temperature fall of thermophase is optimized for 0.035 DEG C/s, and both on the one hand 28.6 DEG C of cooling namely per second, can guarantee tempering glass in this way
The rate of temperature fall of glass is appropriate, avoids tempered glass in temperature-fall period, and internal temperature gradient is excessive and leads to tempering glass
The internal stress of glass increases, and influences the safety in utilization of tempered glass.On the other hand the rate of temperature fall of tempered glass is ensured that
It was unlikely to whole efficiency that is slow and influencing homogenization.
In the present embodiment, several thermocouples for measuring original sheet glass temperature, each thermocouple are provided in homogeneous furnace
It is distributed on original sheet glass, and the model of each thermocouple is WRN-010/K types.Specifically, if by being installed in homogeneous furnace
Xeothermic galvanic couple, and each thermocouple is distributed on original sheet glass, such thermocouple can return the temperature of original sheet glass in real time, into
And the fine tuning control to the original sheet glass rate of heat addition, holding temperature and rate of temperature fall is realized, realize the essence of homogenization process
Trueization controls.
Further, the model of thermocouple is specially WRN-010/K types/2*14000/0~400 DEG C Φ.In this way, the type is warm
Galvanic couple is the temperature change that can accurately measure in 0~400 DEG C of temperature range, so just covers the humidity province of homogenization process
Between.
In the present embodiment, control system is equipped in homogeneous furnace, the heating system and thermocouple of homogeneous furnace are with control
System is electrically connected.Specifically, by be provided with control system in homogeneous furnace, and make heating system and thermocouple with control
System processed is electrically connected, and such control system can carry out the heating system of homogeneous furnace according to the data that thermocouple is passed back real
When regulate and control, and then ensure that heating rate of the original sheet glass in the heating period remains a constant speed and accurately, the heat preservation temperature in constant temperature stage
Degree is in preset temperature range always, and the rate of temperature fall of temperature-fall period remains a constant speed and accurately.
In the present embodiment, as shown in Figure 1, tempering treatment temperature is 570 DEG C~700 DEG C, in tempering processing, according to glass
The thickness of glass original piece is persistently heated according to the heating time parameter of 50s~140s/mm.Specifically, the temperature of tempering processing
Can be 570 DEG C, 580 DEG C, 590 DEG C, 600 DEG C, 610 DEG C, 620 DEG C, 630 DEG C, 640 DEG C, 650 DEG C, 660 DEG C, 670 DEG C, 680 DEG C,
690 DEG C or 700 DEG C.In this way, by the way that tempering treatment temperature is set as 570 DEG C~700 DEG C, it just ensure that original sheet glass exists in this way
Tempering processing stage realizes all steel, and then is conducive to screening of the subsequent homogenization process to tempered glass.
Further, tempering treatment temperature is 610 DEG C~700 DEG C.And tempering treatment temperature is concretely：610℃、 615
℃、620℃、625℃、630℃、635℃、640℃、645℃、650℃、655℃、660℃、 665℃、670℃、675℃、
680 DEG C, 685 DEG C, 690 DEG C, 695 DEG C or 700 DEG C.In this way, the temperature range by further reducing tempering treatment temperature, in this way
Just all steel can be realized in tempering processing procedure by further ensuring original sheet glass.
Preferably, tempering treatment temperature is 670 DEG C.By being preferably 670 DEG C by tempering treatment temperature, on the one hand protect in this way
All steel can be realized in tempering processing procedure by having demonstrate,proved the former piece of reservation.On the other hand tempering treatment temperature is also avoided to set
It is high and tempering processing cost is caused to increase.
Further, tempering heating time parameter can be：50s、60s、70s、80s、90s、100s、110s、 120s、
130s or 140s.In tempering processing stage, by making original sheet glass be carried out according to the heating time parameter of 50s~140s/mm
Heating, just ensure that all steel of original sheet glass from the angle of heating time in this way.
Further, tempering heating time parameter can be 60s~120s/mm, in this way, when by further reducing tempering
Between parameter area, just further ensure in this way original sheet glass tempering processing after, tempering quality is more excellent.
In the present embodiment, the intracavity bottom both sides of homogeneous furnace are equipped with several air inlet (not shown), and inner cavity top is set
There is exhaust fan (not shown), original sheet glass, which is placed in inner cavity, carries out homogenization.Specifically, pass through the intracavity bottom in homogeneous furnace
Both sides are respectively provided with air inlet, and cooling wind extraneous in this way, which is blown into from air inlet in inner cavity, to carry out air-cooled place to tempered glass
Reason, since inner cavity top is additionally provided with exhaust fan, just further improve in this way tempered glass temperature-fall period cooling efficiency.
The embodiment of the present invention additionally provides one kind, is prepared by above-mentioned toughened grass homogenizing processing method.
The tempered glass of the present invention, due to being made of above-mentioned toughened grass homogenizing processing method, and homogenization energy
It is enough to be rejected the tempered glass easily revealed, therefore the tempered glass of the present invention, anti-self-destruction ability in use is just
It is guaranteed, and since interior tissue homogeneity of tempered glass during homogenization can be guaranteed, Jin Erye
Quality of the tempered glass after homogenization has just been effectively ensured.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made by within principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of toughened grass homogenizing processing method, it is characterised in that：Include the following steps：
S1：Original sheet glass is provided, the original sheet glass is cut, the processing of edging and tempering；
S2：Homogeneous furnace is provided, the original sheet glass is placed in the homogeneous furnace and carries out homogenization, the homogenization is by rising
Thermophase, constant temperature stage and temperature-fall period composition；
S3：The heating rate of the temperature rise period is set as 1.5 DEG C/s~4 DEG C/s, the temperature for setting the constant temperature stage is kept
At 240 DEG C~300 DEG C, the duration in the constant temperature stage is set as 1.5h~2.5h, sets the cooling of the temperature-fall period
Rate is 0.02 DEG C/s~0.04 DEG C/s；
S4：The original sheet glass for being cooled to 60 DEG C~70 DEG C is removed into the homogeneous furnace and continues cool to room temperature.
2. toughened grass homogenizing processing method according to claim 1, it is characterised in that：The heating speed of the temperature rise period
Rate is 3 DEG C/s.
3. toughened grass homogenizing processing method according to claim 1, it is characterised in that：The temperature in the constant temperature stage is protected
It holds at 280 DEG C~300 DEG C.
4. toughened grass homogenizing processing method according to claim 1, it is characterised in that：The constant temperature stage it is lasting when
Between be 2h.
5. toughened grass homogenizing processing method according to claim 1, it is characterised in that：The cooling speed of the temperature-fall period
Rate is 0.035 DEG C/s.
6. according to Claims 1 to 5 any one of them toughened grass homogenizing processing method, it is characterised in that：The homogeneous furnace
Several thermocouples for measuring the original sheet glass temperature are inside provided with, each thermocouple is distributed in the original sheet glass
On, and the model of each thermocouple is WRN-010/K types.
7. toughened grass homogenizing processing method according to claim 6, it is characterised in that：Control is equipped in the homogeneous furnace
System, the heating system of the homogeneous furnace and the thermocouple are electrically connected with the control system.
8. according to Claims 1 to 5 any one of them toughened grass homogenizing processing method, it is characterised in that：At the tempering
It is 570 DEG C~700 DEG C to manage temperature, in tempering processing, according to the thickness of the original sheet glass, according to 50s~140s/mm
Heating time parameter persistently heated.
9. according to Claims 1 to 5 any one of them toughened grass homogenizing processing method, it is characterised in that：The homogeneous furnace
Intracavity bottom both sides be equipped with several air inlets, the inner cavity top is equipped with exhaust fan, and the original sheet glass is placed in described
Homogenization is carried out in chamber.
10. a kind of tempered glass, it is characterised in that：By claim 1~9 any one of them toughened grass homogenizing processing method
It is prepared.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111186984A (en) * | 2020-02-28 | 2020-05-22 | 福州新福兴浮法玻璃有限公司 | Super-huge glass batch mixer |
| CN111777319A (en) * | 2020-07-01 | 2020-10-16 | 洛阳北方玻璃技术股份有限公司 | Continuous homogenizing method for toughened glass |
| CN113754262A (en) * | 2020-06-19 | 2021-12-07 | 江西省亚华电子材料有限公司 | Camera lens processing technology |
| CN115448585A (en) * | 2022-09-02 | 2022-12-09 | 无锡市璞宏工程玻璃有限公司 | Processing technology and homogenizing system for reducing self-explosion rate of heat-preservation and heat-insulation toughened glass |
| CN116282869A (en) * | 2023-03-24 | 2023-06-23 | 南京我乐家居股份有限公司 | Intelligent production control method and system for toughened glass |
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