CN114940582B - Glass sheet processing method - Google Patents
Glass sheet processing method Download PDFInfo
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- CN114940582B CN114940582B CN202210769223.9A CN202210769223A CN114940582B CN 114940582 B CN114940582 B CN 114940582B CN 202210769223 A CN202210769223 A CN 202210769223A CN 114940582 B CN114940582 B CN 114940582B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B40/00—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/06—Cutting or splitting glass tubes, rods, or hollow products
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/007—Other surface treatment of glass not in the form of fibres or filaments by thermal treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention belongs to the technical field of glass processing, and particularly discloses a glass sheet processing method, aiming at reducing the material loss rate of a processed fluorophosphate glass sheet. The method is used for preparing the fluorophosphate glass sheet, the glass sheet to be degummed is immersed into the degluing liquid in the degluing process, the degluing liquid is heated to a certain temperature within the range of 60-100 ℃, and the degluing liquid is kept at a constant temperature for 5-20 min to degumm the glass sheet, so that more than 90% of the glass sheet is degummed; meanwhile, the degumming liquid is heated after the glass sheet is immersed in the degumming liquid, the temperature of the degumming liquid is kept constant in the middle process of degumming, and the glass sheet is taken out after being cooled to room temperature, so that severe temperature fluctuation is not generated basically in the whole degumming process, the fluorophosphate glass sheet can be effectively prevented from being cracked, the material loss rate is reduced, and the utilization rate of materials is improved.
Description
Technical Field
The invention belongs to the technical field of glass processing, and particularly relates to a glass sheet processing method.
Background
Along with the polymorphic development of optical glass products, the application range of the optical glass rod is wider and wider, particularly the application of optical plane parts, the optical glass rod can be directly sliced into glass sheets, so that blanks of the optical plane parts can be manufactured without secondary pressing or rounding square blanks, and the blank preparation link is simpler and quicker.
The existing glass sheet processing method generally comprises the procedures of sticking, slicing, degumming, edge chamfering, drying, checking, packaging and the like which are sequentially carried out. The adhesive procedure is mainly to glue the glass rod into blocks by special glue, then to fill glue into the cylindrical surface of the glass rod to reinforce the blocks, and to form the whole glass rod blocks after the glue is completely bonded. The slicing procedure mainly adopts an inner circle slicer to cut the whole glass rod block into sheets; the inner diameter of the cutting blade determines the number of slices per time due to limitations of the apparatus itself. The most commonly used large-specification inner circle slicing machine in the market at present is J5090 type, and the maximum processing size is phi 90mm multiplied by 90mm; taking a glass rod slice with the diameter of 10mm multiplied by 75mm as an example, the maximum adhesive amount is about 50 pieces each time, adhesive glue such as rosin paraffin is adopted, heating is needed in the adhesive procedure, the time is long, and products with poor thermal properties such as fluorophosphate glass can be produced in the repeated temperature rising and falling process.
Fluorophosphate glass is a low refractive index, low dispersion optical glass which can significantly improve imaging quality of an optical system in an optical system, and thus is widely used in various optical imaging systems. Because the glass contains a large amount of fluoride and the glass product is metaphosphate, the glass has weak glass forming capability, small viscosity, strong crystallization capability, short material property and poor thermal performance.
At present, after slicing is finished, degumming is carried out on a plurality of glass sheets on the whole plate in a boiling way, the whole degumming heating time is long and takes about 5 hours; for the glass sheets made of fluorophosphate materials, the degumming time is too long, and the glass sheets are prone to cracking caused by large temperature fluctuation, about 50% of the glass sheets are prone to cracking, and the material loss rate is high. Moreover, the blank after degumming is chamfered by manual operation, so that the efficiency is low, the blank is greatly affected by personal factors, and the instability of product quality is easily brought. For example: when the automatic chamfering machine is operated manually, an operator finishes the automatic chamfering machine by experience, random errors exist, and consistency of chamfering quality is difficult to ensure; also for example: different operators have larger product difference of edge chamfering due to factors such as different proficiency and different working states.
Disclosure of Invention
The invention provides a glass sheet processing method, which aims to reduce the material loss rate of a processed fluorophosphate glass sheet.
The technical scheme adopted for solving the technical problems is as follows: the glass sheet processing method comprises the step of degumming bonded glass sheets after slicing; the glass sheet is a fluorophosphate glass sheet; the degumming process is as follows: firstly adding degumming liquid into a degumming container, immersing a glass sheet to be degummed into the degumming liquid, and then heating the degumming liquid to ensure that the temperature of the degumming liquid is kept constant at T ℃ for 5-20 min, wherein T is more than or equal to 60 and less than or equal to 100; and finally, stopping heating the degumming liquid, and taking out the glass sheet from the degumming liquid after the glass sheet is cooled to room temperature.
Further, the ratio of the degumming agent to water in the degumming liquid is 1:1-3.
Further, the degumming agent is mainly formed by mixing inorganic alkali, organic alkali, penetrating agent, wetting agent and surfactant.
Further, the degumming container is an incubator, and the glass sheets to be degummed are placed into the incubator through the turnover basket.
Further, the method also comprises a binding process and a slicing process;
and (3) a material bonding process: bonding the glass rod to be sliced into a glass rod integral block with one flush end;
slicing: and bonding the glass rod integral block to a clamping tool of a glass slicing device, and starting the glass slicing device to cut the glass rod integral block into at least two plates, wherein each plate comprises at least two glass sheets bonded together.
Further, the glass slicing device is a multi-wire cutting machine, and the diameter of a cutting steel wire of the multi-wire cutting machine is 0.13-2.0 mm.
Further, the method also comprises the step of chamfering the degummed glass sheet by adopting a vibration mill;
the chamfering process is as follows: firstly, paving at least one layer of carborundum with 80-180 meshes and at least one layer of glass sheet to be chamfered in a feed box of a vibration mill, alternately paving the carborundum layers and the glass sheet layers, and adding the carborundum and the glass sheet in a volume ratio of 1:0.5-2; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; and then starting the vibration mill, chamfering for 5-10 hours and stopping.
Further, in the chamfering process, the volume of water sprayed into the feed box of the vibration mill is 0.3-1% of the volume of the added glass sheet.
Further, the method also comprises a drying process;
and (3) a drying procedure: after the chamfering is finished, the carborundum and the glass sheets in the feed box of the vibration mill are screened by utilizing a screen, then the glass sheets on the screen are cleaned, and then the glass sheets are spread on a drying platform for drying.
Further, the method also comprises a checking procedure and a packaging procedure;
and (3) checking: after the drying is finished, transferring the glass sheet to an inspection platform, and detecting the surface quality and the size of the glass sheet;
packaging procedure: and (5) filling the qualified glass sheet products into a packaging container.
The beneficial effects of the invention are as follows: the method is used for preparing the fluorophosphate glass sheet, the glass sheet to be degummed is immersed into the degluing liquid in the degluing process, the degluing liquid is heated to a certain temperature within the range of 60-100 ℃, and the degluing liquid is kept at a constant temperature for 5-20 min to degumm the glass sheet, so that more than 90% of the glass sheet is degummed; meanwhile, the degumming liquid is heated after the glass sheet is immersed in the degumming liquid, the temperature of the degumming liquid is kept constant in the middle process of degumming, and the glass sheet is taken out after being cooled to room temperature, so that severe temperature fluctuation is not generated basically in the whole degumming process, the fluorophosphate glass sheet can be effectively prevented from being cracked, the material loss rate is reduced, and the utilization rate of materials is improved; according to incomplete statistics, the fluorophosphate glass sheet is degummed by the method, and only 10% of the glass sheets have the problem of cracking.
Drawings
Fig. 1 is a process flow diagram of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1, the glass sheet processing method includes sequentially performing the steps of bonding, slicing, degumming, chamfering, drying, inspecting and packaging;
and (3) a material bonding process: bonding a glass rod to be sliced into a glass rod integral block with one flush end, wherein the glass rod is made of fluorophosphate; the procedure generally adopts a positioning tool to ensure that one end of the glass rod is flush; when the materials are adhered, the adjacent glass rods are usually adhered by dispensing glue, and then cylindrical glue filling and reinforcement are carried out to form a completely adhered glass rod integral block;
slicing: bonding the glass rod integral block to a clamping tool of glass slicing equipment, and starting the glass slicing equipment to cut the glass rod integral block into at least two plates, wherein each plate comprises at least two glass sheets bonded together;
degumming: after slicing is completed, degumming the bonded glass sheets; the degumming process is as follows: firstly adding degumming liquid into a degumming container, immersing a glass sheet to be degummed into the degumming liquid, and then heating the degumming liquid to ensure that the temperature of the degumming liquid is kept constant at T ℃ for 5-20 min, wherein T is more than or equal to 60 and less than or equal to 100; finally, stopping heating the degumming liquid, and taking out the glass sheet from the degumming liquid after the glass sheet is cooled to room temperature; in the degumming process, the glass sheet to be degummed is immersed into the degummed solution, the degummed solution is heated to a certain temperature within the range of 60-100 ℃, and the degummed solution is kept at a constant temperature for 5-20 min to degumm the glass sheet, so that more than 90% of the glass sheet is degummed; meanwhile, the degumming liquid is heated after the glass sheet is immersed into the degumming liquid, the temperature of the degumming liquid is kept constant in the middle process of degumming, and the glass sheet is taken out after being cooled to room temperature, so that severe temperature fluctuation is not generated basically in the whole degumming process, and the fluorophosphate glass sheet can be effectively prevented from cracking;
chamfering: manual chamfering can be adopted, and machine chamfering can also be adopted; in order to improve the processing efficiency and ensure the quality and consistency of chamfering, a vibration mill is preferably adopted to chamfer the degummed glass sheet; the concrete chamfering process is as follows: firstly, paving at least one layer of carborundum with 80-180 meshes and at least one layer of glass sheet to be chamfered in a feed box of a vibration mill, alternately paving the carborundum layers and the glass sheet layers, and adding the carborundum and the glass sheet in a volume ratio of 1:0.5-2; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; then, starting the vibration mill, chamfering for 5-10 hours and stopping;
and (3) a drying procedure: screening the carborundum and the glass sheets in a feed box of the vibration mill by utilizing a screen after edge chamfering is finished, cleaning the glass sheets on the screen to remove the carborundum adhered to the surfaces of the glass sheets, and spreading the glass sheets on a drying platform for drying to remove residual moisture on the surfaces of the glass sheets; the screen mesh can be various, and in order to avoid damaging the surface of the glass sheet, a plastic screen mesh is preferably adopted to screen the silicon carbide and the glass sheet; the drying mode can be various, for example: drying by a hot water fan, or irradiating by a warm lamp, or drying by compressed air;
and (3) checking: after the drying is finished, transferring the glass sheets to an inspection platform, detecting the surface quality and the size of the glass sheets, and removing unqualified glass sheets;
packaging procedure: and (5) filling the qualified glass sheet products into a packaging container. The qualified glass sheets are generally packaged by special packaging materials according to the size specification of the product and the packaging requirements of clients. The packaging containers may be of various kinds, for example: packaging bags, packages, boxes, and the like.
Among them, the glass slicing apparatus is an apparatus for cutting an integral block of a glass rod into a plurality of sheets, which may be various, for example: microtomes, wire cutters, etc., preferably multi-wire cutters, having a cutting wire diameter of 0.13 to 2.0mm. The glass rod integral block can be directly cut into the sheet with the thickness below 1mm by adopting the multi-wire saw for cutting, the kerf generated by slicing is narrow, the depth of the generated breaking layer is shallow, and the width of broken edges can be reduced to below 0.15 mm.
The degumming container is easy to hold the degumming liquid and the glass sheets to be degummed, and can be various; in order to facilitate keeping the temperature of the degumming liquid constant and reduce the cracking of the glass sheet, an incubator is preferably used as a degumming container; in order to facilitate the transport of the glass sheet to be degummed and the removal of the degummed glass sheet, the glass sheet to be degummed is generally placed in an incubator through a transfer basket.
The degumming solution is an aqueous solution of a degumming agent, and in order to ensure good degumming effect, the ratio of the degumming agent to water in the degumming solution is preferably 1:1-3; the degumming agent is mainly formed by mixing inorganic alkali, organic alkali, penetrating agent, wetting agent and surfactant. Inorganic bases are basic industrial materials of very wide use and can be varied, for example: potassium hydroxide, calcium hydroxide, aluminum hydroxide, lithium hydroxide, magnesium hydroxide, zinc hydroxide, copper hydroxide, iron hydroxide, sodium carbonate (anhydrous sodium carbonate), sodium carbonate (monohydrate, heptahydrate, decahydrate), sodium bicarbonate (baking soda), potassium carbonate, potassium bicarbonate, and the like. Generally, an organic base is an organic compound containing an amino group in the molecule, for example: an amine compound; in the broad acid-base theory, there are also many substances belonging to the alkali metal salts of organic bases, alcohols, for example: sodium methoxide, potassium ethoxide, potassium tert-butoxide; lithium alkyl compounds, such as: butyl lithium, phenyl lithium; lithium amide compounds, such as: lithium Diisopropylamide (LDA), lithium hexamethyldisilazide (LiHMDS), and the like. The penetrating agent (JFC) is called fatty alcohol polyoxyethylene ether, and belongs to nonionic surfactant; penetrants, as their name implies, are substances that act as a penetrant, also having immobilized hydrophilic lipophilic groups, which are aligned on the surface energy of a solution, and which enable a significant reduction in surface tension. Wetting agents, also known as wetting agents, primarily function to reduce the surface tension or interfacial tension of water, allowing the solid surface to be wetted by the water. A surfactant (surfactant) is a substance capable of significantly reducing the surface tension of a target solution; it has immobilized hydrophilic and lipophilic groups, which are aligned on the surface energy of the solution.
A vibratory mill is a surface modification apparatus that polishes the surface of a glass sheet by adding silicon carbide of a corresponding particle size, which can be used to batch beveling the glass sheet. The vibration mill is driven by a special motor, adopts a ternary vibration principle, adopts a spiral rolling technology, makes the glass sheet and the abrasive material more fully rubbed, does not damage the original size and shape of the glass sheet in the processing process, can randomly and selectively inspect the processing condition of the glass sheet in the working process, and is widely applied to deburring and chamfering processes of various parts, and has the advantages of high processing efficiency, good processing quality, simple equipment structure and convenient operation. The vibration mill liner is made of polyurethane PU material, is a high wear-resistant material poured at one time, has long service life, and can avoid mutual collision between parts (can avoid defective products caused by collision between glass sheets and the liner) and reduce noise.
In order to ensure the chamfering effect, the quantity of water sprayed in the chamfering process is not too much or too little, and the volume of water sprayed into a feed box of the vibration mill is preferably 0.3-1% of the volume of the added glass sheet.
Example 1
A certain fluorophosphate glass rod with the specification of phi 8.5mm multiplied by 75mm is processed into a certain fluorophosphate glass sheet with the specification of phi 8.5mm multiplied by 4mm and the chamfered edge C0.2, and the broken edge width is controlled within 0.2 mm; the processing process is as follows:
s1, a material bonding process: according to the specification of the glass rod to be sliced and the specification of the material plate on the multi-wire cutting machine, two adhesive tapes are placed on the upper side surface and the bottom surface of the positioning tool, so that glue drips on the tool in the gluing process, the glass rod is not easy to take down, one end of the glass rod to be sliced is clung to the positioning tool, the cylindrical surface is clung to the adhesive tapes on the side surface of the positioning tool, after a row of glass rods are sequentially clung to each other, the cylindrical surfaces of the adjacent glass rods are subjected to point gluing by using the glue, after one row is bonded, a second row of adhesive tapes are discharged on the upper side of the previous row, and a plurality of rows of adhesive tapes are sequentially bonded until the cutting height of the multi-wire cutting machine; the cutting height of the adopted multi-wire cutting machine is 150mm, and the cutting width is 160mm;
placing the glued whole glass rod vertically on a stainless steel screen, placing a glue receiving container at the bottom of the stainless steel screen to reduce waste of glue, pouring the glue from the upper end along the cylindrical direction of the glass rod, turning over the whole glass rod after pouring once, leading the upper end to face upwards and the lower end to face upwards, replacing a new glue receiving container, and pouring the glue in the previous glue receiving container from the current upper end of the whole glass rod along the cylindrical direction of the glass rod, thereby finishing one glue pouring; repeating the steps for 2 to 3 times to finish glue filling; the operator needs to wear protective gloves in the whole glue filling process, after the glue filling is completed, the whole glass rod is placed on the object placing table for more than 10 minutes, and when the glue is completely dried, the whole glass rod block is formed, so that the glass rod is ensured not to be scattered in the slicing process;
s2, slicing: the whole glass rod block is adhered to the clamping tool of the multi-wire cutting machine, and the clamping tool is made of aluminum alloy so that the weight of a single body is about 20kg, and the weight is greatly reduced by about 30kg after the whole glass rod block is adhered; a flat glass plate is bonded on a clamping tool of a multi-wire cutting machine, and then the whole glass rod is bonded on the glass plate, so that the surface of the clamping tool is prevented from being damaged when cutting through in the slicing process; bonding the whole glass rod block onto a glass plate, wherein a positioning tool is used for ensuring that the cylindrical surface of the glass rod is parallel to the length direction of a clamping tool and ensuring that the large slicing surface (the end surface of slicing) is perpendicular to the cylindrical surface; then, according to the thickness of the slice and the surface requirement, manufacturing a roller cutting mechanism with corresponding specification, using green silicon carbide with corresponding granularity, configuring mortar with corresponding density, selecting cutting steel wires with matched diameters, selecting proper cutting processes such as feed speed, tension parameters of a corresponding tension arm, cooling water temperature and flow rate and the like according to the performance of the material (the manufacturing and the selection of the cutting components and the selection of the linear cutting process are all in the prior art and are not repeated), starting to slice, and cutting the whole glass rod block into at least two plates, wherein each plate comprises at least two glass plates bonded together;
s3, degumming: after slicing, a clamping tool adhered with glass sheets is dragged by a special tool to prevent the glass sheets from falling and scattering, mortar among the cutting joints is washed by water, and then the sheets are broken off and put into a turnover basket; then adding degumming liquid into an incubator, putting the glass sheet to be degummed into the incubator through a turnover basket, ensuring that the glass sheet to be degummed is immersed into the degumming liquid, and heating the degumming liquid, wherein the high-temperature and high-temperature glass is easy to crack due to the characteristics of fluorophosphate glass, so that the degumming liquid is heated to a certain temperature within the range of 60-100 ℃, and the degumming liquid is kept at a constant temperature for 5-20 min to degumm the glass sheet; and finally, turning off a heating power supply, stopping heating the degluing liquid, taking out the glass sheet from the degluing liquid after the glass sheet is cooled to room temperature, and flushing the residual degluing liquid on the surface of the glass sheet with water;
s4, chamfering: because the edges of the glass sheets are sharp, the glass sheets need to be chamfered in order to avoid larger area of broken edges generated in the process of transferring or packaging and transporting the glass sheets, and because the specifications of common glass sheets are smaller, the number of the glass sheets is larger, the manual chamfering efficiency is low, and therefore, a vibration mill is adopted to chamfer the degummed glass sheets; the chamfering process is as follows: firstly, paving at least one layer of carborundum with 80-180 meshes and at least one layer of glass sheet to be chamfered in a feed box of a vibration mill, alternately paving the carborundum layers and the glass sheet layers, and adding the carborundum and the glass sheet in a volume ratio of 1:0.5-2; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; then, starting a vibration mill, rolling the glass sheet and the carborundum in the vibration mill, pouring the sharp edge of the glass sheet into a small circular arc shape, and stopping after pouring the edge for 5-10 hours;
s5, a drying process: after chamfering is finished, screening the carborundum and the glass sheet in a feed box of the vibration mill by utilizing a plastic screen, recycling the carborundum below the screen, flushing the carborundum remained on the glass sheet by utilizing a high-pressure water gun, and spreading the glass sheet on a drying platform for drying to remove the residual moisture on the surface of the glass sheet;
s6, checking: after the drying is finished, transferring the glass sheet to an inspection platform by using a nonmetal dustpan, inspecting the appearance and the surface quality of the glass sheet by an inspector, inspecting whether cracks, edge damages and the like exist or not, performing spot inspection on the diameter and the thickness of the glass sheet according to corresponding requirements, and removing unqualified glass sheets;
s7, packaging procedure: and (3) filling the qualified glass sheet products into a packaging container, adopting a corresponding packaging mode, packaging common products by using small-size transparent sealing bags, packaging the common products into corresponding quantities, attaching corresponding product information outside the sealing bags, and packaging special products by adopting a special packaging mode such as a plastic sucking disc and the like.
The whole processing process of the embodiment is that the number of slices cut once is about 40000, the time is only about 4 hours, which is equivalent to the productivity of 50 inner circle slicing machines, and the special cold glue adhesive is preferably adopted, heating is not needed, cooling is not needed, the adhesive efficiency is greatly improved, and the explosion of fluorophosphate glass can be prevented; and the degumming time is greatly shortened compared with the original degumming time, the chamfering efficiency is also greatly improved, and the consistency is very good.
Example 2
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out;
wherein, the degumming procedure is as follows: firstly adding degumming liquid into a degumming container, immersing a glass sheet to be degummed into the degumming liquid, and then heating the degumming liquid to ensure that the temperature of the degumming liquid is constant at 60 ℃ and is kept for 20min; finally, stopping heating the degumming liquid, and taking out the glass sheet from the degumming liquid after the glass sheet is cooled to room temperature; the test of the taken glass sheets shows that about 90% of the glass sheets are degummed, and the rest parts have small blocks or are not degummed cleanly, so that the glass sheets have no burst.
Comparative example 1
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out; the procedure was the same as in example 2 except for the degumming procedure;
wherein, the degumming procedure is as follows: firstly adding degumming liquid into a degumming container, immersing a glass sheet to be degummed into the degumming liquid, and then heating the degumming liquid to ensure that the temperature of the degumming liquid is constant at 50 ℃ and is kept for 20min; finally, stopping heating the degumming liquid, and taking out the glass sheet from the degumming liquid after the glass sheet is cooled to room temperature; the test of the taken glass sheets shows that 80% of the glass sheets are degummed, and the glass sheets have no cracking under the conditions that residual glue exists on the surfaces of part of the glass sheets or the degummed glass sheets are not clean.
Comparative example 2
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out; the procedure was the same as in example 2 except for the degumming procedure;
wherein, the degumming procedure is as follows: firstly adding degumming liquid into a degumming container, immersing a glass sheet to be degummed into the degumming liquid, and then heating the degumming liquid to ensure that the temperature of the degumming liquid is constant at 60 ℃ and is kept for 20min; finally, stopping heating the degumming liquid, and directly taking out the glass sheet from the degumming liquid; the inspection of the taken glass sheets shows that about 90% of the glass sheets are degummed, and the rest parts have small blocks or are not degummed cleanly, so that about 70% of the glass sheets have the problem of burst.
Example 3
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out;
wherein, the degumming procedure is as follows: firstly adding degumming liquid into a degumming container, immersing a glass sheet to be degummed into the degumming liquid, and then heating the degumming liquid to ensure that the temperature of the degumming liquid is constant at 80 ℃ and kept for 10min; finally, stopping heating the degumming liquid, and taking out the glass sheet from the degumming liquid after the glass sheet is cooled to room temperature; inspection of the removed glass sheets revealed that all glass sheets were degummed and that all glass sheets were degummed completely, without gum residue, and without cracking.
Example 4
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out;
wherein, the degumming procedure is as follows: firstly adding degumming liquid into a degumming container, immersing a glass sheet to be degummed into the degumming liquid, and then heating the degumming liquid to ensure that the temperature of the degumming liquid is constant at 80 ℃ and kept for 15min; finally, stopping heating the degumming liquid, and taking out the glass sheet from the degumming liquid after the glass sheet is cooled to room temperature; inspection of the removed glass sheets revealed that all glass sheets were degummed and that all glass sheets were degummed completely, without gum residue, with 10% of the glass sheets having burst.
Example 5
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out;
wherein, the degumming procedure is as follows: firstly adding degumming liquid into a degumming container, immersing a glass sheet to be degummed into the degumming liquid, and then heating the degumming liquid to ensure that the temperature of the degumming liquid is kept constant at 100 ℃ for 5min; finally, stopping heating the degumming liquid, and taking out the glass sheet from the degumming liquid after the glass sheet is cooled to room temperature; inspection of the removed glass sheets revealed that all glass sheets were degummed and that all glass sheets were degummed completely without gum residue, but about 10% of the glass sheets had burst.
Comparative example 3
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out; the procedure was the same as in example 5 except for the degumming procedure;
wherein, the degumming procedure is as follows: firstly adding degumming liquid into a degumming container, immersing a glass sheet to be degummed into the degumming liquid, and then heating the degumming liquid to ensure that the temperature of the degumming liquid is kept constant at 100 ℃ for 4min; finally, stopping heating the degumming liquid, and taking out the glass sheet from the degumming liquid after the glass sheet is cooled to room temperature; the inspection of the taken glass sheets shows that 85% of the glass sheets are degummed, and the surface of part of the glass sheets has residual glue or is unclean, but about 8% of the glass sheets have burst.
According to the analysis of examples 1-5 and comparative examples 1-3, it is known that the method is used for preparing fluorophosphate glass sheets, in the degumming process, the glass sheets to be degummed are immersed into the degummed solution, the degummed solution is heated to a certain temperature in the range of 60-100 ℃, and the degummed solution is kept at a constant temperature for 5-20 min to degumm the glass sheets, so that more than 90% of the glass sheets can be degummed; meanwhile, the degumming liquid is heated after the glass sheet is immersed into the degumming liquid, the temperature of the degumming liquid is kept constant in the middle process of degumming, and the glass sheet is taken out after being cooled to room temperature, so that severe temperature fluctuation is basically not generated in the whole degumming process, and the problem of cracking of only not more than 10% of the glass sheet occurs.
Example 6
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out;
wherein, the chamfering process adopts a vibration mill to chamfer the degummed glass sheet; the concrete chamfering process is as follows: firstly, paving a layer of 80-mesh carborundum and a layer of glass sheet to be chamfered in a feed box of a vibration mill, alternately paving the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet in a volume ratio of 2:1; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; then, starting the vibration mill, chamfering for 10 hours, and stopping; screening out the glass sheet by using a screen, and checking after cleaning to find that about 98% of blank pieces have no obvious broken edges, and finding that the width of the broken edges meets the drawing requirement size when the size of the broken edges is detected by using a multiplying power mirror.
Comparative example 4
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out; the procedure was the same as in example 6 except for the chamfering step;
wherein, the chamfering process adopts a vibration mill to chamfer the degummed glass sheet; the concrete chamfering process is as follows: firstly, paving a layer of 60-mesh carborundum and a layer of glass sheet to be chamfered in a feed box of a vibration mill, alternately paving the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet in a volume ratio of 2:1; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; then, starting the vibration mill, chamfering for 10 hours, and stopping; screening out the glass sheet by using a screen, cleaning, and checking to find that broken edges still appear at about 40% of the reversed edge positions, the broken edge size exceeds the tolerance requirement, and the reversed edge width of the glass sheet without obvious broken edges detected by using a multiplying power mirror is larger than the size required by a drawing
Example 7
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out;
wherein, the chamfering process adopts a vibration mill to chamfer the degummed glass sheet; the concrete chamfering process is as follows: firstly, paving a layer of 120-mesh carborundum and a layer of glass sheet to be chamfered in a feed box of a vibration mill, alternately paving the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet in a volume ratio of 1:1; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; then, starting the vibration mill, chamfering for 5 hours and stopping; screening out the glass sheet by using a screen, and checking after cleaning to find that about 98% of blank pieces have no obvious broken edges, and finding that the width of the broken edges meets the drawing requirement size when the size of the broken edges is detected by using a multiplying power mirror.
Example 8
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out;
wherein, the chamfering process adopts a vibration mill to chamfer the degummed glass sheet; the concrete chamfering process is as follows: firstly, paving a plurality of layers of 120-mesh carborundum and a plurality of layers of glass sheets to be chamfered in a feed box of a vibration mill, filling the feed box, alternately paving a carborundum layer and a glass sheet layer, and adding the carborundum and the glass sheets in a volume ratio of 2:1; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; then, starting the vibration mill, chamfering for 9 hours and stopping; screening out the glass sheet by using a screen, and checking after cleaning to find that about 98% of blanks have no obvious broken edges, and finding that the width of the chamfered edges reaches the required size of the drawing when the size of the chamfered edges is detected by using a multiplying power mirror.
Example 9
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out;
wherein, the chamfering process adopts a vibration mill to chamfer the degummed glass sheet; the concrete chamfering process is as follows: firstly, paving a layer of 150-mesh carborundum and a layer of glass sheet to be chamfered in a feed box of a vibration mill, alternately paving the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet in a volume ratio of 1:1; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; then, starting the vibration mill, chamfering for 9 hours and stopping; screening out the glass sheets by using a screen, and checking after cleaning to find that 98% of the glass sheets have no obvious broken edges, and finding that the width of the broken edges meets the drawing required size when the size of the broken edges is detected by using a multiplying power mirror.
Example 10
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out;
wherein, the chamfering process adopts a vibration mill to chamfer the degummed glass sheet; the concrete chamfering process is as follows: firstly, paving a layer of 180-mesh carborundum and a layer of glass sheet to be chamfered in a feed box of a vibration mill, alternately paving the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet in a volume ratio of 1:1; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; then, starting the vibration mill, chamfering for 10 hours, and stopping; screening out the glass sheets by using a screen, and checking after cleaning to find that 98% of the glass sheets have no obvious broken edges, and finding that the width of the broken edges meets the drawing required size when the size of the broken edges is detected by using a multiplying power mirror.
Comparative example 5
Processing a certain fluorophosphate glass sheet, including the procedures of bonding, slicing, degumming, edge chamfering, drying, checking and packaging which are sequentially carried out; the procedure was the same as in example 10 except for the chamfering step;
wherein, the chamfering process adopts a vibration mill to chamfer the degummed glass sheet; the concrete chamfering process is as follows: firstly, paving a layer of 180-mesh carborundum and a layer of glass sheet to be chamfered in a feed box of a vibration mill, alternately paving the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet in a volume ratio of 1:1; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; then, starting the vibration mill, chamfering for 20 hours and stopping; screening out the glass sheet by using a screen, and checking after cleaning to find that broken edges still appear at about 30% of the broken edges, wherein the broken edges exceed the tolerance requirement, and the broken edges of the glass sheet without obvious broken edges are detected by using a multiplying power mirror to find that the broken edges are smaller than the required dimension of the drawing.
According to analysis of examples 6-10 and comparative examples 4-5, it is known that the fluorophosphate glass sheet is processed and prepared by the method, 80-180 meshes of carborundum is adopted in the chamfering process, the volume ratio of the added carborundum to the glass sheet is 1:0.5-2, and chamfering is carried out for 5-10 hours, so that the chamfering efficiency can be improved, and the chamfering quality and consistency are ensured.
Claims (9)
1. The glass sheet processing method comprises the step of degumming bonded glass sheets after slicing; the method is characterized in that: the glass sheet is a fluorophosphate glass sheet; the degumming process is as follows: firstly adding degumming liquid into a degumming container, immersing a glass sheet to be degummed into the degumming liquid, and then heating the degumming liquid to ensure that the temperature of the degumming liquid is kept constant at T ℃ for 5-20 min, wherein T is more than or equal to 60 and less than or equal to 100; finally, stopping heating the degumming liquid, and taking out the glass sheet from the degumming liquid after the glass sheet is cooled to room temperature; the degumming liquid is an aqueous solution of a degumming agent, and the degumming agent is formed by mixing inorganic alkali, organic alkali, penetrating agent, wetting agent and surfactant.
2. The method of processing glass sheets according to claim 1, wherein: the ratio of the degumming agent to water in the degumming liquid is 1:1-3.
3. The method of processing glass sheets according to claim 1, wherein: the degumming container is an incubator, and the glass sheet to be degummed is placed into the incubator through the turnover basket.
4. The method of processing glass sheets according to claim 1, wherein: the method also comprises a material bonding process and a slicing process;
and (3) a material bonding process: bonding the glass rod to be sliced into a glass rod integral block with one flush end;
slicing: and bonding the glass rod integral block to a clamping tool of a glass slicing device, and starting the glass slicing device to cut the glass rod integral block into at least two plates, wherein each plate comprises at least two glass sheets bonded together.
5. The method of processing glass sheets according to claim 4, wherein: the glass slicing device is a multi-wire cutting machine, and the diameter of a cutting steel wire of the multi-wire cutting machine is 0.13-2.0 mm.
6. The glass sheet processing method according to any one of claims 1 to 5, wherein: the method also comprises the step of chamfering the degummed glass sheet by adopting a vibration mill;
the chamfering process is as follows: firstly, paving at least one layer of carborundum with 80-180 meshes and at least one layer of glass sheet to be chamfered in a feed box of a vibration mill, alternately paving the carborundum layers and the glass sheet layers, and adding the carborundum and the glass sheet in a volume ratio of 1:0.5-2; spraying water into a feed box of the vibration mill to enable the surface of the glass sheet to be adhered with silicon carbide; and then starting the vibration mill, chamfering for 5-10 hours and stopping.
7. The method of processing glass sheets according to claim 6, wherein: in the chamfering process, the volume of water sprayed into a feed box of the vibration mill is 0.3-1% of the volume of the added glass sheet.
8. The method of processing glass sheets according to claim 7, wherein: the method also comprises a drying procedure;
and (3) a drying procedure: after the chamfering is finished, the carborundum and the glass sheets in the feed box of the vibration mill are screened by utilizing a screen, then the glass sheets on the screen are cleaned, and then the glass sheets are spread on a drying platform for drying.
9. The method of processing glass sheets according to claim 8, wherein: the method also comprises a checking procedure and a packaging procedure;
and (3) checking: after the drying is finished, transferring the glass sheet to an inspection platform, and detecting the surface quality and the size of the glass sheet;
packaging procedure: and (5) filling the qualified glass sheet products into a packaging container.
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