CN114940582A - Glass sheet processing method - Google Patents
Glass sheet processing method Download PDFInfo
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- CN114940582A CN114940582A CN202210769223.9A CN202210769223A CN114940582A CN 114940582 A CN114940582 A CN 114940582A CN 202210769223 A CN202210769223 A CN 202210769223A CN 114940582 A CN114940582 A CN 114940582A
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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 processed fluorophosphate glass sheets. The method is used for processing and preparing the fluorophosphate glass sheets, the glass sheets to be degummed are immersed into the degumming liquid in the degumming process, the degumming liquid is heated to a certain temperature within the range of 60-100 ℃, the degumming liquid is kept at the constant temperature for 5-20 min to degummate the glass sheets, and more than 90% of the glass sheets can be degummed; meanwhile, the degumming liquid is heated after the glass sheets are immersed in the degumming liquid, so that the temperature of the degumming liquid is kept constant in the degumming intermediate process, and the glass sheets are taken out after being cooled to room temperature, so that severe temperature fluctuation is not generated basically in the whole degumming process, the fluorphosphate glass sheets can be effectively prevented from being cracked, the material loss rate is reduced, and the material utilization rate 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 optical glass rods is wider and wider, and especially in the application of optical plane parts, the optical glass rods can be directly sliced and processed to form glass sheets so as to be used for manufacturing blanks of the optical plane parts, secondary pressing or rounding of square blanks is not needed, and the stock preparation links of the blanks are simpler and faster.
The existing glass sheet processing method generally comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection, packaging and the like which are sequentially carried out. The material sticking process mainly comprises the steps of sticking the glass rod into a block by using special glue, pouring glue into the cylindrical surface of the glass rod to reinforce the glass rod, and forming the whole block of the glass rod after the glue is completely stuck. The slicing procedure mainly adopts an inner circle slicer to slice the whole glass rod into sheets; the inside diameter of the cutting blade determines the number of slices per pass due to the limitations of the device itself. The most common large-size inside diameter slicer in the current market is J5090 type, and the maximum processing size is phi 90mm multiplied by 90 mm; taking the glass rod with the diameter of 10mm multiplied by 75mm as an example, the maximum adhesive amount is about 50 in each time, and the adhesive glue such as rosin paraffin is adopted, so that the heating is needed in the adhesive process, the time is long, and the products with poor thermal performance such as fluorophosphate glass have more defective products in the process of repeatedly heating and cooling.
Fluorophosphate glass is a low-refractive-index, low-dispersion optical glass, and can significantly improve the imaging quality of an optical system in the optical system, so that the fluorophosphate glass is widely applied to various optical imaging systems. Because the formula of the glass contains a large amount of fluoride and the glass forming body is metaphosphate, the glass forming capability of the glass is weaker, the viscosity of the glass is small, the crystallization capability is strong, the material property is short, and the thermal property is poorer.
At present, after slicing is finished, degumming is carried out on a plurality of glass sheets on a whole plate by adopting a water boiling mode, the whole degumming heating needs about 5 hours, and the degumming time is long; for the glass sheets made of fluorophosphate materials, the degumming time is too long, and large temperature fluctuation exists, so that about 50% of the glass sheets are cracked, and the material loss rate is high. Moreover, the edge chamfering of the degummed blank is mainly carried out manually, so that the manual operation is low in efficiency, is greatly influenced by personal factors and is easy to bring instability of product quality. For example: during manual operation, operators complete the operation according to experience, random errors exist, and the consistency of the chamfering quality is difficult to ensure; another example is: different operators have larger product difference of edge chamfering due to different proficiency, different working states and other factors.
Disclosure of Invention
The invention provides a glass sheet processing method, aiming at reducing the material loss rate of processed fluorophosphate glass sheets.
The technical scheme adopted by the invention for solving the technical problems is as follows: the glass sheet processing method comprises the step of degumming the glass sheets bonded together after slicing; the glass sheet is a fluorophosphate glass sheet; the degumming process comprises the following steps: firstly, adding degumming liquid into a degumming container, then immersing the glass sheets to be degummed into the degumming liquid, and then heating the degumming liquid to keep the temperature of the degumming liquid constant at T ℃ for 5-20 min, wherein T is more than or equal to 60 and is less than or equal to 100; and finally, stopping heating the degumming liquid, and taking the glass sheets out of the degumming liquid after the glass sheets are 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 base, organic base, penetrating agent, wetting agent and surfactant.
Further, the degumming container is a thermostat, and the glass sheets to be degummed are placed into the thermostat through a turnover basket.
Further, the method also comprises a material sticking procedure and a slicing procedure;
a material sticking procedure: bonding a glass rod to be sliced into a glass rod integral block with one flush end;
a slicing procedure: and bonding the whole glass rod block to a clamping tool of a glass slicing device, and then starting the glass slicing device to cut the whole glass rod block into at least two sheets, wherein each sheet comprises at least two glass sheets bonded together.
Further, the glass slicing equipment 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 vibrating mill;
the chamfering process is as follows: firstly, laying at least one layer of 80-180-mesh carborundum and at least one layer of glass sheet to be chamfered in a material box of a vibration mill, alternately laying the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet in a volume ratio of 1: 0.5-2; spraying water into a material box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; and then, starting the vibrating mill, and stopping after chamfering for 5-10 hours.
Furthermore, in the chamfering process, the volume of water sprayed into a bin of the vibration mill is 0.3 to 1 percent of the volume of the added glass sheets.
Further, the method also comprises a drying procedure;
and (3) a drying procedure: after the edge chamfering is finished, the carborundum and the glass sheet in the material box of the vibrating mill are screened by using the screen, then the glass sheet on the screen is cleaned, and then the glass sheet is spread on a drying platform for drying.
Further, the method also comprises an inspection process and a packaging process;
and (3) an inspection process: after drying, transferring the glass sheet to an inspection platform, and detecting the surface quality and size of the glass sheet;
a packaging procedure: and filling the glass sheet product qualified by detection into a packaging container.
The invention has the beneficial effects that: the method is used for processing and preparing the fluorophosphate glass sheets, the glass sheets to be degummed are immersed into the degumming solution in the degumming process, the degumming solution is heated to a certain temperature within the range of 60-100 ℃, the constant temperature of the degumming solution is kept for 5-20 min to degummate the glass sheets, and more than 90% of the glass sheets can be degummed; meanwhile, the degumming liquid is heated after the glass sheets are immersed in the degumming liquid, so that the temperature of the degumming liquid is kept constant in the degumming intermediate process, and the glass sheets are taken out after being cooled to room temperature, so that severe temperature fluctuation is basically not generated in the whole degumming process, the fluorphosphate glass sheets can be effectively prevented from being cracked, the material loss rate is reduced, and the material utilization rate is improved; according to incomplete statistics, the method is used for degumming the fluorophosphate glass sheets, and only less than 10 percent of the glass sheets have the problem of explosion 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 figures and examples.
Referring to fig. 1, the glass sheet processing method comprises the following working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence;
a material sticking procedure: 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 glass; the process generally adopts a positioning tool to ensure that one end of the glass rod is flush; when the materials are bonded, the adjacent glass rods are generally glued and bonded, and then the cylindrical surface is filled with glue for reinforcement, so that a completely bonded glass rod integral block is formed;
a slicing procedure: bonding the glass rod integral block to a clamping tool of a glass slicing device, and then starting the glass slicing device to cut the glass rod integral block into at least two plate sheets, wherein each plate sheet comprises at least two glass sheets bonded together;
degumming: after slicing is finished, degumming is carried out on the glass sheets bonded together; the degumming process comprises the following steps: firstly, adding degumming liquid into a degumming container, then immersing the glass sheets to be degummed into the degumming liquid, and then heating the degumming liquid to keep the temperature of the degumming liquid constant at T ℃ for 5-20 min, wherein T is more than or equal to 60 and is less than or equal to 100; finally, stopping heating the degumming liquid, and taking the glass sheets out of the degumming liquid after the glass sheets are cooled to room temperature; in the degumming process, more than 90% of glass sheets can be degummed by immersing the glass sheets to be degummed into the degumming liquid, heating the degumming liquid to a certain temperature within the range of 60-100 ℃, and keeping the constant temperature of the degumming liquid for 5-20 min to degummate the glass sheets; meanwhile, the degumming liquid is heated after the glass sheets are immersed in the degumming liquid, so that the temperature of the degumming liquid is kept constant in the degumming intermediate process, and the glass sheets are taken out after being cooled to room temperature, so that severe temperature fluctuation is basically not generated in the whole degumming process, and the fluorphosphate glass sheets can be effectively prevented from being cracked;
chamfering: manual chamfering or machine chamfering can be adopted; in order to improve the processing efficiency and ensure the quality and consistency of edge chamfering, the edge chamfering is preferably carried out on the degummed glass sheet by adopting a vibrating mill; the concrete chamfering process is as follows: firstly, laying at least one layer of 80-180-mesh carborundum and at least one layer of glass sheet to be chamfered in a material box of a vibration mill, alternately laying the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet in a volume ratio of 1: 0.5-2; spraying water into a material box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; then, starting the vibration mill, and stopping after chamfering for 5-10 hours;
and (3) drying: after the chamfering is finished, screening the carborundum and the glass sheet in a material box of the vibrating mill by using a screen, cleaning the glass sheet on the screen to remove the carborundum adhered to the surface of the glass sheet, and then spreading the glass sheet on a drying platform for drying to remove residual water on the surface of the glass sheet; the number of the screens can be multiple, and in order to avoid damaging the surface of the glass sheet, a plastic screen is preferably adopted to screen the carborundum and the glass sheet; the drying mode can be various, for example: drying with hot water blower, or irradiating with warm lamp, or drying with compressed air;
and (3) an inspection process: after drying, transferring the glass sheets to an inspection platform, detecting the surface quality and size of the glass sheets, and removing unqualified glass sheets;
a packaging procedure: and filling the glass sheet product qualified by detection into a packaging container. Generally, according to the size specification of the product and the packaging requirements of customers, the glass sheets qualified in detection are packaged by using special packaging materials. The packaging container can be of various kinds, for example: packaging bags, boxes, and the like.
Among them, the glass slicing apparatus is an apparatus that cuts a glass rod integral block into a plurality of sheets, which may be various, for example: a slicer, a wire saw, etc., preferably a multi-wire saw having a cutting wire with a diameter of 0.13 to 2.0 mm. By adopting a multi-wire cutting machine for cutting, the integral lump material of the glass rod can be directly cut into a sheet with the thickness of less than 1mm, the cutting seam generated by cutting is narrow, the depth of the generated damaged layer is shallow, and the edge breaking width can be reduced to less than 0.15 mm.
The degumming container is easy to contain degumming liquid and glass sheets to be degummed, and can be various; in order to keep the temperature of the degumming liquid constant and reduce the burst of glass sheets, a constant temperature box is preferably used as a degumming container; in order to facilitate the transfer of the glass sheets to be degummed and the removal of the degummed glass sheets, the glass sheets to be degummed are usually placed in a thermostat through a transfer basket.
The degumming solution is an aqueous solution of a degumming agent, and in order to ensure a 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 prepared by mixing inorganic base, organic base, penetrating agent, wetting agent and surfactant. Inorganic bases are basic industrial raw materials of a very wide variety of uses, which can be varied, for example: potassium hydroxide, calcium hydroxide, aluminum hydroxide, lithium hydroxide, magnesium hydroxide, zinc hydroxide, copper hydroxide, iron hydroxide, soda ash (anhydrous sodium carbonate), sodium carbonate (monohydrate, heptahydrate, decahydrate), sodium bicarbonate (baking soda), potassium carbonate, potassium bicarbonate, and the like. In general, organic bases are organic compounds containing amino groups in the molecule, such as: an amine compound; according to the broad theory of acid and base, there are many substances belonging to the class of organic bases, alkali metal salts of alcohols, such as: sodium methoxide, potassium ethoxide, potassium tert-butoxide; lithium alkylmetal compounds, for example: butyl lithium, phenyl lithium; aminolithium compounds, for example: lithium Diisopropylamide (LDA), lithium hexamethyldisilazide (LiHMDS), and the like. The penetrating agent (JFC) is fully called fatty alcohol-polyoxyethylene ether, and belongs to a nonionic surfactant; the penetrant is a substance which has the function of penetration, has fixed hydrophilic and lipophilic groups, can be directionally arranged on the surface of a solution, and can obviously reduce the surface tension. Wetting agents, also known as wetting agents, primarily function to reduce the surface tension or interfacial tension of water, allowing the surface of a solid to be wetted by water. Surfactants (surfactants) are substances that can significantly reduce the surface tension of a target solution; it has fixed hydrophilic and lipophilic groups and can be directionally arranged on the surface of the solution.
The vibrating grinder is surface modification equipment for grinding the surface of a glass sheet by adding carborundum with corresponding granularity, and can be used for batch chamfering of the glass sheet. The vibrating mill is driven by a special motor, utilizes a ternary vibration principle, adopts a spiral rolling technology, and conducts diversified vibration grinding, so that a glass sheet is more fully rubbed with an abrasive material, the original size and shape of the glass sheet are not damaged in the machining process, the machining condition of the glass sheet can be randomly checked at any time in the working process, the vibrating mill is widely applied to deburring and chamfering procedures of various parts, the machining efficiency is high, the machining quality is good, the equipment structure is simple, and the operation is convenient. The inner container of the vibromill is made of Polyurethane (PU) and is made of a high-wear-resistance material which is poured once, the service life is long, and meanwhile, mutual collision between parts (a glass sheet and the inner container can be prevented from being collided to generate defective products) and noise reduction can be avoided.
In order to ensure the chamfering effect, the amount of sprayed water in the chamfering process is not too much or too little, and the volume of the sprayed water in a feed box of the vibration mill is preferably 0.3 to 1 percent of the volume of the added glass sheets.
Example 1
Processing a certain fluorophosphate glass rod with the specification of phi 8.5mm multiplied by 75mm into a certain fluorophosphate glass sheet with the specification of phi 8.5mm multiplied by 4mm and chamfered edge C0.2, and controlling the edge breaking width within 0.2 mm; the processing process is as follows:
s1, material sticking: according to the specification of a glass rod to be sliced and the specification of a material plate on the multi-wire cutting machine, two adhesive tapes are respectively placed on the upper side surface and the bottom surface of a positioning tool, so that the glass rod is not easy to take down due to the fact that the adhesive water leaks on the tool in the gluing process, one end of the glass rod to be sliced is tightly attached to the positioning tool, the cylindrical surface of the glass rod to be sliced is tightly attached to the adhesive tape on the side surface of the positioning tool, after one row of glass rods are sequentially placed in a close mode, glue is used for glue-dispensing and bonding the cylindrical surfaces of the adjacent glass rods, after one row of glass rods are bonded, the second row of glass rods are arranged on the upper side of the previous row of glass rods, glue-dispensing and bonding is performed, and multiple rows of glass rods are sequentially bonded until the cutting height of the multi-wire cutting machine is reached; the cutting height of the multi-wire cutting machine adopted at this time is 150mm, and the cutting width is 160 mm;
vertically placing the glued whole glass rod on a stainless steel screen, placing a glue receiving container at the bottom of the stainless steel screen to reduce the waste of glue, pouring the glue along the cylindrical direction of the glass rod from the upper end, turning the whole glass rod over after the glue is poured once, changing a new glue receiving container with the previous upper end facing upwards and the previous lower end facing downwards, 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 to finish the one-time glue pouring; repeating the above steps for 2-3 times to complete glue filling; operators need 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 after the glue is completely dried, the whole glass rod is formed, so that the glass rod is prevented from being scattered in the slicing process;
s2, slicing step: the glass rod integral block is bonded to a clamping tool of the multi-wire cutting machine, the clamping tool is made of aluminum alloy for facilitating loading and unloading, the weight of a single body is about 20kg, and about 30kg is obtained after the glass rod integral block is bonded, so that the weight is greatly reduced; generally, a flat glass plate is firstly bonded on a clamping tool of a multi-wire cutting machine, and then a glass rod integral block is bonded on the glass plate, so that the surface of the clamping tool is prevented from being damaged when a cutting-through is carried out in the slicing process; bonding the glass rod integral block to a glass plate, ensuring that the cylindrical surface of the glass rod is parallel to the length direction of a clamping tool by using a positioning tool and ensuring that the large surface of a slice (the end surface of the slice) is vertical to the cylindrical surface; then, according to the requirements of the thickness and the surface of the sliced sheet, a roller cutting mechanism with corresponding specifications is manufactured, green silicon carbide with corresponding granularity is used, mortar with corresponding density is configured, a cutting steel wire with matched diameter is selected, and then a proper cutting process is selected according to the performance of the material, such as feed speed, tension parameters of a corresponding tension arm, cooling water temperature, flow and the like (the manufacturing and the selection of the cutting parts and the selection of the linear cutting process are the prior art and are not repeated), slicing is started, the whole glass rod block is cut into at least two sheets, and each sheet comprises at least two glass sheets bonded together;
s3, degumming: after slicing is finished, dragging the clamping tool stuck with the glass sheet by using a special tool to prevent the glass sheet from falling and scattering, washing mortar between the cutting seams by using water, and then breaking off the sheet and putting the sheet into a turnover basket; then, adding degumming liquid into a constant temperature box, putting the glass sheets to be degummed into the constant temperature box through a turnover basket, ensuring that the glass sheets to be degummed are immersed into the degumming liquid, and then heating the degumming liquid, wherein due to the characteristics of fluorophosphate glass, the high-temperature glass and the temperature glass are violently easy to crack, so that the degumming liquid is heated to a certain temperature within the range of 60-100 ℃, and the degumming liquid is kept at the constant temperature for 5-20 min to degummate the glass sheets; finally, the heating power supply is turned off, the heating of the degumming solution is stopped, the glass sheet is taken out of the degumming solution after being cooled to the room temperature, and the residual degumming solution on the surface of the glass sheet is washed away by water;
s4, chamfering: because the edge of the glass sheet is sharp, in order to avoid the glass sheet from generating large-area broken edges in the process of transportation or packaging and transportation, the glass sheet needs to be chamfered, and because the general glass sheet has smaller specification and the number of the glass sheets is generally larger, the manual chamfering efficiency is low, the chamfered glass sheet is chamfered by adopting a vibrating mill; the chamfering process is as follows: firstly, laying at least one layer of 80-180-mesh carborundum and at least one layer of glass sheet to be chamfered in a material box of a vibration mill, alternately laying the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet in a volume ratio of 1: 0.5-2; spraying water into a material box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; then, starting a vibrating mill, rolling the glass sheet and carborundum in the vibrating mill, chamfering the sharp edge of the glass sheet into a small arc shape, and stopping after chamfering for 5-10 hours;
s5, drying: after the chamfering is finished, screening the carborundum and the glass sheet in a material box of the vibrating mill by using a plastic screen, wherein the carborundum under the screen can be recycled, washing the residual carborundum on the glass sheet by using a high-pressure water gun, and then spreading the glass sheet on a drying platform for drying so as to remove the residual moisture on the surface of the glass sheet;
s6, a checking procedure: after drying, conveying the glass sheet to an inspection platform by using a nonmetallic dustpan, inspecting the appearance and the surface quality of the glass sheet by an inspector, inspecting whether cracks, edge damage 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: the glass sheet products qualified by detection are placed in a packaging container, corresponding packaging modes are adopted, common products are generally packaged by small transparent sealing bags, the common products are packaged in corresponding quantity, corresponding product information is pasted outside the sealing bags, and special products need to be packaged in packaging modes such as special plastic sucking discs.
In the whole processing process of the embodiment, the number of slices cut once is about 40000, the time is only about 4 hours, which is equivalent to the capacity of 50 inside diameter slicers, a special cold adhesive is preferably adopted, heating and cooling are not needed, the adhesive efficiency is greatly improved, and the fluorophosphate glass can be prevented from cracking; and the degumming time is greatly shortened compared with the original degumming time, the edge chamfering efficiency is also greatly improved, and the consistency is very good.
Example 2
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence;
wherein, the degumming procedure is as follows: adding degumming liquid into a degumming container, immersing the glass sheets to be degummed into the degumming liquid, and heating the degumming liquid to keep the temperature of the degumming liquid at 60 ℃ for 20 min; finally, stopping heating the degumming liquid, and taking the glass sheets out of the degumming liquid after the glass sheets are cooled to room temperature; the inspection of the taken glass sheets shows that about 90 percent of the glass sheets are degummed, and the rest of the glass sheets have small blocks or are not degummed completely, so that the glass sheets are not cracked.
Comparative example 1
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence; the procedure was the same as in example 2 except for the degumming procedure;
wherein, the degumming procedure is as follows: adding degumming liquid into a degumming container, immersing the glass sheets to be degummed into the degumming liquid, and heating the degumming liquid to keep the temperature of the degumming liquid at 50 ℃ for 20 min; finally, stopping heating the degumming liquid, and taking the glass sheets out of the degumming liquid after the glass sheets are cooled to room temperature; the inspection of the taken glass sheets shows that 80 percent of the glass sheets are degummed, and the glass sheets are not cracked under the condition that the surfaces of partial glass sheets have residual glue or the degummed glass sheets are not clean.
Comparative example 2
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence; 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, then immersing the glass sheets to be degummed into the degumming liquid, and then heating the degumming liquid to keep the temperature of the degumming liquid at 60 ℃ for 20 min; finally, stopping heating the degumming liquid, and directly taking out the glass sheets from the degumming liquid; the inspection of the taken glass sheets shows that about 90 percent of the glass sheets are degummed, the rest part of the glass sheets have small blocks or are not degummed, and about 70 percent of the glass sheets have the problem of explosion.
Example 3
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence;
wherein, the degumming procedure is as follows: adding degumming liquid into a degumming container, immersing the glass sheets to be degummed into the degumming liquid, and heating the degumming liquid to keep the temperature of the degumming liquid at 80 ℃ for 10 min; finally, stopping heating the degumming liquid, and taking the glass sheets out of the degumming liquid after the glass sheets are cooled to room temperature; and the inspection of the taken-out glass sheets shows that all the glass sheets are degummed, and all the glass sheets are degummed completely without residual glue and have no burst.
Example 4
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence;
wherein, the degumming procedure is as follows: firstly, adding degumming liquid into a degumming container, then immersing the glass sheets to be degummed into the degumming liquid, and then heating the degumming liquid to keep the temperature of the degumming liquid at 80 ℃ for 15 min; finally, stopping heating the degumming liquid, and taking the glass sheets out of the degumming liquid after the glass sheets are cooled to room temperature; inspection of the removed glass pieces revealed that all the glass pieces had been degummed and that all the glass pieces had been degummed completely without adhesive residue, with 10% of the glass pieces having cracked.
Example 5
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence;
wherein the degumming procedure comprises the following steps: adding degumming liquid into a degumming container, immersing the glass sheets to be degummed into the degumming liquid, and heating the degumming liquid to keep the temperature of the degumming liquid at 100 ℃ for 5 min; finally, stopping heating the degumming liquid, and taking the glass sheets out of the degumming liquid after the glass sheets are cooled to room temperature; inspection of the removed glass sheets revealed that all the glass sheets were degummed and that all the glass sheets were degummed completely without residual gum, but about 10% of the glass sheets were cracked.
Comparative example 3
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence; the procedure was the same as in example 5 except for the degumming procedure;
wherein the degumming procedure comprises the following steps: adding degumming liquid into a degumming container, immersing the glass sheets to be degummed into the degumming liquid, and heating the degumming liquid to keep the temperature of the degumming liquid at 100 ℃ for 4 min; finally, stopping heating the degumming liquid, and taking the glass sheets out of the degumming liquid after the glass sheets are cooled to room temperature; the inspection of the taken glass sheets shows that 85 percent of the glass sheets are degummed, the surfaces of partial glass sheets have residual glue or the degummed glass sheets are not clean, but about 8 percent of the glass sheets are cracked.
According to the analysis of the examples 1 to 5 and the comparative examples 1 to 3, the method for processing and preparing the fluorophosphate glass sheets can be known, in the degumming process, the glass sheets to be degummed are immersed into the degumming liquid, the degumming liquid is heated to a certain temperature within the range of 60-100 ℃, the degumming liquid is kept at the constant temperature for 5-20 min to degummate the glass sheets, and more than 90% of the glass sheets can be degummated; meanwhile, the degumming liquid is heated after the glass sheets are immersed in the degumming liquid, so that the temperature of the degumming liquid is kept constant in the degumming intermediate process, and the glass sheets are taken out after being cooled to room temperature, so that severe temperature fluctuation is basically not generated in the whole degumming process, and only less than 10 percent of the glass sheets have the problem of explosion.
Example 6
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence;
wherein, the edge chamfering process adopts a vibration mill to chamfer the degummed glass sheets; the concrete chamfering process is as follows: firstly, laying a layer of 80-mesh carborundum and a layer of glass sheet to be chamfered in a material box of a vibration mill, alternately laying the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet according to the volume ratio of 2: 1; spraying water into a feed box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; then, starting the vibrating mill, and stopping after chamfering for 10 hours; and screening out the glass sheet by using a screen, and inspecting after cleaning to find that about 98% of blank pieces have no obvious broken edges, and finding that the width of the chamfered edge meets the dimension required by a drawing when the size of the chamfered edge is detected by using a multiplying power mirror.
Comparative example 4
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence; the procedure was the same as in example 6 except for the chamfering procedure;
wherein, the edge chamfering process adopts a vibration mill to chamfer the degummed glass sheets; the concrete chamfering process is as follows: firstly, laying a layer of 60-mesh carborundum and a layer of glass sheet to be chamfered in a material box of a vibration mill, alternately laying the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet according to the volume ratio of 2: 1; spraying water into a material box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; then, starting the vibration mill, and stopping after chamfering for 10 hours; screening out the glass sheet by using a screen, cleaning, and then inspecting to find that about 40% of chamfered positions still have broken edges, the size of the broken edges exceeds the tolerance requirement, and the glass sheet without obvious broken edges is detected by using a multiplying power mirror to find that the chamfered width is larger than the size required by a drawing
Example 7
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence;
wherein, the edge chamfering process adopts a vibration mill to chamfer the degummed glass sheets; the concrete chamfering process is as follows: firstly, laying a layer of 120-mesh carborundum and a layer of glass sheet to be chamfered in a material box of a vibration mill, alternately laying 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 material box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; then, starting the vibrating mill, and stopping after chamfering for 5 hours; and screening out the glass sheet by using a screen, and inspecting after cleaning to find that about 98% of blank pieces have no obvious broken edges, and finding that the width of the chamfered edge meets the dimension required by a drawing when the size of the chamfered edge is detected by using a multiplying power mirror.
Example 8
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence;
wherein, the edge chamfering process adopts a vibration mill to chamfer the degummed glass sheets; the concrete chamfering process is as follows: firstly, laying a plurality of layers of 120-mesh carborundum and a plurality of layers of glass sheets to be chamfered in a material box of a vibration mill, filling the material box, alternately laying carborundum layers and glass sheet layers, and adding carborundum and the glass sheets in a volume ratio of 2: 1; spraying water into a material box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; then, starting the vibration mill, and stopping after chamfering for 9 hours; and screening out the glass sheets by using a screen, and inspecting after cleaning to find that about 98% of blank pieces have no obvious broken edges, and finding that the width of the chamfered edge reaches the size required by the drawing when the size of the chamfered edge is detected by using a multiplying power mirror.
Example 9
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence;
wherein, the edge chamfering process adopts a vibration mill to chamfer the degummed glass sheets; the concrete chamfering process is as follows: firstly, laying a layer of 150-mesh carborundum and a layer of glass sheet to be chamfered in a material box of a vibration mill, alternately laying 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 material box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; then, starting the vibrating mill, and stopping after chamfering for 9 hours; and screening out the glass sheets by using a screen, and inspecting after cleaning to find that 98% of the glass sheets have no obvious broken edges, and finding that the width of the chamfered edge meets the size required by a drawing when the size of the chamfered edge is detected by using a multiplying power mirror.
Example 10
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence;
wherein, the edge chamfering process adopts a vibrating mill to chamfer the degummed glass sheet; the specific chamfering process comprises the following steps: firstly, laying a layer of 180-mesh carborundum and a layer of glass sheet to be chamfered in a material box of a vibration mill, alternately laying 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 material box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; then, starting the vibrating mill, and stopping after chamfering for 10 hours; and screening out the glass sheets by using a screen, and inspecting after cleaning to find that 98% of the glass sheets have no obvious broken edges, and finding that the width of the chamfered edge meets the size required by a drawing when the size of the chamfered edge is detected by using a multiplying power mirror.
Comparative example 5
Processing a certain fluorophosphate glass sheet, which comprises the working procedures of material sticking, slicing, degumming, edge chamfering, drying, inspection and packaging in sequence; the procedure was the same as in example 10 except for the chamfering procedure;
wherein, the edge chamfering process adopts a vibration mill to chamfer the degummed glass sheets; the concrete chamfering process is as follows: firstly, laying a layer of 180-mesh carborundum and a layer of glass sheet to be chamfered in a material box of a vibration mill, alternately laying 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 material box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; then, starting the vibrating mill, and stopping after chamfering for 20 hours; and screening out the glass sheet by using a screen, and inspecting after cleaning to find that about 30% of chamfered positions still have broken edges, the size of the broken edges exceeds the tolerance requirement, and the width of the chamfered edges of the glass sheet without obvious broken edges is detected by using a multiplying power mirror and found to be smaller than the size required by a drawing.
According to the analysis of the examples 6-10 and the comparative examples 4-5, the method for processing and preparing the fluorophosphate glass sheet is known to adopt 80-180 meshes of carborundum in the chamfering process, the volume ratio of the 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 (10)
1. The glass sheet processing method comprises the step of degumming the glass sheets bonded together after slicing; the method is characterized in that: the glass sheet is a fluorophosphate glass sheet; the degumming process comprises the following steps: firstly, adding degumming liquid into a degumming container, then immersing the glass sheets to be degummed into the degumming liquid, and then heating the degumming liquid to keep the temperature of the degumming liquid constant at T ℃ for 5-20 min, wherein T is more than or equal to 60 and is less than or equal to 100; and finally, stopping heating the degumming liquid, and taking the glass sheet out of the degumming liquid after the glass sheet is cooled to room temperature.
2. The glass sheet processing method of claim 1, wherein: the ratio of the degumming agent to water in the degumming liquid is 1: 1-3.
3. The glass sheet processing method of claim 2, wherein: the degumming agent is mainly formed by mixing inorganic base, organic base, penetrating agent, wetting agent and surfactant.
4. The glass sheet processing method of claim 1, wherein: the degumming container is a thermostat, and the glass sheets to be degummed are placed into the thermostat through a turnover basket.
5. The glass sheet processing method of claim 1, wherein: the method also comprises a material sticking procedure and a slicing procedure;
a material sticking procedure: bonding a glass rod to be sliced into a glass rod integral block with one flush end;
a slicing procedure: and bonding the whole glass rod block to a clamping tool of a glass slicing device, and then starting the glass slicing device to cut the whole glass rod block into at least two sheets, wherein each sheet comprises at least two glass sheets bonded together.
6. The glass sheet processing method of claim 5, wherein: the glass slicing equipment 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.
7. The glass sheet processing method of any one of claims 1 to 6, wherein: the method also comprises the process of chamfering the degummed glass sheet by adopting a vibrating mill;
the chamfering process is as follows: firstly, laying at least one layer of 80-180-mesh carborundum and at least one layer of glass sheet to be chamfered in a material box of a vibration mill, alternately laying the carborundum layer and the glass sheet layer, and adding the carborundum and the glass sheet in a volume ratio of 1: 0.5-2; spraying water into a material box of the vibrating mill to enable the surface of the glass sheet to be bonded with carborundum; and then, starting the vibrating mill, and stopping after chamfering for 5-10 hours.
8. The glass sheet processing method of claim 7, wherein: in the chamfering process, the volume of water sprayed into a bin of the vibration mill is 0.3 to 1 percent of the volume of the added glass sheets.
9. The glass sheet processing method of claim 7, wherein: the method also comprises a drying procedure;
and (3) drying: after the edge chamfering is finished, the carborundum and the glass sheet in the material box of the vibrating mill are screened by using the screen, then the glass sheet on the screen is cleaned, and then the glass sheet is spread on a drying platform for drying.
10. The glass sheet processing method of claim 9, wherein: the method also comprises an inspection process and a packaging process;
and (3) an inspection process: after drying, transferring the glass sheet to an inspection platform, and detecting the surface quality and size of the glass sheet;
a packaging procedure: and filling the glass sheet product qualified by detection into a packaging container.
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