CN112745016B - Pretreatment method before film coating of 0.10mm glass - Google Patents
Pretreatment method before film coating of 0.10mm glass Download PDFInfo
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- CN112745016B CN112745016B CN202011553871.8A CN202011553871A CN112745016B CN 112745016 B CN112745016 B CN 112745016B CN 202011553871 A CN202011553871 A CN 202011553871A CN 112745016 B CN112745016 B CN 112745016B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/02—Tempering or quenching glass products using liquid
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
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- 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
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
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- Engineering & Computer Science (AREA)
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- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention provides a pretreatment method before coating of 0.10mm glass, which comprises the following steps: preheating and strengthening the 0.10mm glass, and dripping salt for slow cooling. According to the invention, the tempering treatment before film coating is carried out on the 0.10mm glass through preheating strengthening and salt dropping slow cooling, so that the excellent tempering strength is realized, and the subsequent vertical magnetron sputtering film coating production is realized; the method has simple process and operation flow, the added liquid potassium nitrate can be dripped back into the tempering furnace when the salt is dripped, the liquid potassium nitrate can be reused, and the treatment cost is saved; the 0.10mm glass treated by the method can better meet the market demand of thinning, and has good market prospect.
Description
Technical Field
The invention belongs to the technical field of film coating treatment, and particularly relates to a pretreatment method before film coating of 0.10mm glass.
Background
At present, the minimum thickness of the glass produced by the float normal line is 0.20 mm, in order to meet the market demand of thinning, the 0.20 mm glass can be thinned by adopting a glass thinning technology, and the thickness of the thinned glass is 0.10 +/-0.02 mm. However, the 0.10mm glass is too easy to be damaged, and the magnetron sputtering coating production operation can hardly be realized if the glass is not treated.
Therefore, the development of a method for pretreatment before film coating of 0.10mm glass aiming at the above problems is a difficult problem which needs to be solved by the technical personnel in the field.
Disclosure of Invention
In order to solve the problems, the invention discloses a pretreatment method before film coating of 0.10mm glass.
In order to achieve the purpose, the invention provides the following technical scheme:
a pretreatment method before film coating of 0.10mm glass comprises the following steps: preheating and strengthening the 0.10mm glass, and dripping salt for slow cooling.
Further, the specific method is as follows:
(1) Preheating
Placing glass to be treated in a preheating furnace, and slowly preheating the temperature in the preheating furnace to 365-375 ℃;
(2) Reinforcement of
Heating the toughening furnace to 385-395 ℃, transferring the glass to be treated into the toughening furnace from the preheating furnace after the temperature in the toughening furnace reaches 365-375 ℃, setting the toughening time to be 110-130 min, and adding liquid potassium nitrate into the toughening furnace;
(3) Salt drop
Sealing the toughening furnace, keeping the temperature in the furnace at 385-395 ℃, and dropping salt;
(4) Slow cooling
After the salt dripping is finished, transferring the glass into a preheating furnace, opening a fan at the top of the preheating furnace, and slowly cooling the inside of the preheating furnace; when the temperature in the preheating furnace is reduced to 245-255 ℃, opening 1/3 of the furnace door; when the temperature is reduced to 195-205 ℃, opening a 2/3 furnace door; when the temperature is reduced to 145-155 ℃, opening the whole furnace door;
(5) Boxing ready-to-plate
And when the temperature in the preheating furnace is reduced to 100 ℃, removing the glass, cooling to room temperature, and boxing for plating.
Further, the to-be-processed 0.10mm glass is inserted into a toughening groove of a toughening frame, and is subjected to preheating strengthening and salt dripping slow cooling by taking the toughening frame as a whole.
Further, cover plate glasses with the height higher than 0.10mm glass by 2.5-3.5 mm are dispersedly inserted into the tempering grooves of the tempering frame, two pressure levers are fixed on the upper portion of the cover plate glasses, and the to-be-processed 0.10mm glasses are vertically inserted into the rest tempering grooves.
Further, the preheating time in the step (1) is not less than 90min.
Further, the time period for dropping the salt in the step (3) is not less than 30min.
Further, before the box is plated in the step (5), the toughening strength of the 0.10mm glass is required to be checked.
Compared with the prior art, the invention has the following beneficial effects:
1. the toughening treatment before the film coating is carried out on the 0.10mm glass through preheating strengthening and salt dropping slow cooling, so that the excellent toughening strength is realized, and the subsequent vertical magnetron sputtering film coating production is realized;
2. the method has simple process and operation flow, the added liquid potassium nitrate can be dripped back into the tempering furnace when the salt is dripped, the liquid potassium nitrate can be reused, and the treatment cost is saved;
3. the 0.10mm glass treated by the method can better meet the market demand of thinning, and has good market prospect.
Detailed Description
The technical solutions provided by the present invention will be described in detail below with reference to specific examples, and it should be understood that the following specific embodiments are only illustrative of the present invention and are not intended to limit the scope of the present invention.
Example 1:
the invention relates to a pretreatment method before film coating of 0.10mm glass, which comprises the following steps: preheating and strengthening the 0.10mm glass, and dripping salt for slow cooling.
The specific method comprises the following steps:
(1) Plug frame
Cover plate glass with the height higher than 0.10mm glass by 3 mm is dispersedly inserted into the tempering groove of the tempering frame, two pressure levers are fixed at the upper part of the cover plate glass, and the 0.10mm glass to be processed is vertically inserted into the rest tempering grooves;
(2) Hoisting device
Locking a lifting lug bolt of the tempering frame, and driving the tempering frame to slowly rise by using a lifter;
(3) Preheating
Placing glass to be treated in a preheating furnace, slowly preheating the temperature in the preheating furnace to 365 ℃, wherein the preheating time is not less than 90min;
(4) Reinforcement of
Heating the toughening furnace to 385 ℃, transferring the glass to be treated into the toughening furnace from the preheating furnace after the temperature in the toughening furnace reaches 365 ℃, setting the toughening time to be 110min, and adding liquid potassium nitrate into the toughening furnace;
(5) Salt drop
Sealing the toughening furnace, keeping the temperature in the furnace at 385 ℃, and carrying out salt dripping for no less than 30min;
(6) Slow cooling
After the salt dripping is finished, transferring the glass into a preheating furnace, opening a fan at the top of the preheating furnace, and slowly cooling the inside of the preheating furnace; when the temperature in the preheating furnace is reduced to 245 ℃, opening 1/3 of the furnace door; when the temperature is reduced to 195 ℃, opening a 2/3 furnace door; when the temperature is reduced to 145 ℃, the whole fan of furnace door is opened;
(7) Drop frame
When the temperature in the preheating furnace is reduced to 95 ℃, the lifting steel frame is moved out by using a lifter, the high-temperature gloves are worn, the solid potassium nitrate on the lifting lug bolt is dissolved by using water, and the lifting lug bolt is removed;
(8) Boxing and plating
And cooling the tempering frame to room temperature, checking the tempering strength of the 0.10mm glass in the tempering frame, wherein the stress layer is 7.8-8.0 mu m, the stress value is 480-500 MPa, and boxing and plating are carried out.
Example 2:
the invention relates to a pretreatment method before film coating of 0.10mm glass, which comprises the following steps: preheating and strengthening 0.10mm glass, and dropping salt and slowly cooling.
The specific method comprises the following steps:
(1) Plug frame
Cover plate glass with the height higher than 0.10mm glass by 3 mm is dispersedly inserted into the tempering groove of the tempering frame, two pressure levers are fixed at the upper part of the cover plate glass, and the 0.10mm glass to be processed is vertically inserted into the rest tempering grooves;
(2) Hoisting device
Locking a lifting lug bolt of the tempering frame, and driving the tempering frame to slowly rise by using a lifter;
(3) Preheating
Placing glass to be treated in a preheating furnace, slowly preheating the temperature in the preheating furnace to 370 ℃, wherein the preheating time is not less than 90min;
(4) Reinforcement of
Heating the toughening furnace to 390 ℃, transferring the glass to be treated into the toughening furnace from the preheating furnace after the temperature in the toughening furnace reaches 370 ℃, setting the toughening time to be 120min, and adding liquid potassium nitrate into the toughening furnace;
(5) Salt drop
Sealing the toughening furnace, keeping the temperature in the furnace at 390 ℃, and dripping salt for no less than 30min;
(6) Slow cooling
After the salt dripping is finished, transferring the glass into a preheating furnace, opening a fan at the top of the preheating furnace, and slowly cooling the inside of the preheating furnace; when the temperature in the preheating furnace is reduced to 250 ℃, opening 1/3 of the furnace door; when the temperature is reduced to 200 ℃, opening 2/3 of the furnace door; when the temperature is reduced to 150 ℃, the whole fan of furnace door is opened;
(7) Drop frame
When the temperature in the preheating furnace is reduced to 100 ℃, the lifting steel frame is moved out by using a lifter, the high-temperature gloves are worn, the solid potassium nitrate on the lifting lug bolt is dissolved by using water, and the lifting lug bolt is removed;
(8) Boxing ready-to-plate
And cooling the tempering frame to room temperature, checking the tempering strength of the 0.10mm glass in the tempering frame, wherein the stress layer is 8.0-8.3 mu m, the stress value is 500-520 MPa, and boxing and plating.
Example 3:
the invention relates to a pretreatment method before film coating of 0.10mm glass, which comprises the following steps: preheating and strengthening the 0.10mm glass, and dripping salt for slow cooling.
The specific method comprises the following steps:
(1) Plug frame
Cover plate glass with the height higher than 0.10mm glass and 3 mm is dispersedly inserted into the toughening grooves of the toughening frame, two pressure levers are fixed at the upper part of the cover plate glass, and the 0.10mm glass to be processed is vertically inserted into the rest toughening grooves;
(2) Hoisting device
Locking a lifting lug bolt of the tempering frame, and driving the tempering frame to slowly rise by using a lifter;
(3) Preheating
Placing glass to be treated in a preheating furnace, slowly preheating the temperature in the preheating furnace to 375 ℃, wherein the preheating time is not less than 90min;
(4) Reinforcement of
Heating the toughening furnace to 395 ℃, transferring the glass to be treated into the toughening furnace from the preheating furnace after the temperature in the toughening furnace reaches 375 ℃, setting the toughening time to be 120min, and adding liquid potassium nitrate into the toughening furnace;
(5) Salt drop
Sealing the toughening furnace, keeping the temperature in the furnace at 395 ℃, and dripping salt for no less than 30min;
(6) Slow cooling
After the salt dripping is finished, transferring the glass into a preheating furnace, opening a fan at the top of the preheating furnace, and slowly cooling the inside of the preheating furnace; when the temperature in the preheating furnace is reduced to 255 ℃, opening 1/3 of the furnace door; when the temperature is reduced to 205 ℃, opening a 2/3 furnace door; when the temperature is reduced to 155 ℃, the whole fan of furnace door is opened;
(7) Drop frame
When the temperature in the preheating furnace is reduced to 105 ℃, the lifting steel frame is moved out by using a lifter, the high-temperature gloves are worn, the solid potassium nitrate on the lifting lug bolt is dissolved by using water, and the lifting lug bolt is removed;
(8) Boxing ready-to-plate
And after the toughening frame is cooled to room temperature, the toughening strength of the 0.10mm glass is checked, the stress layer is 8.3-8.5 microns, the stress value is 520-540 MPa, and the glass is packaged and is ready for plating.
The above three examples show that 0.10mm glass pretreated according to the present invention has a stress layer of at least 7.8 μm or more and a stress value higher than 480MPa, and the tempering strength is remarkably increased.
Example 4:
this example is the same as the method in example 3, except that the method in step (4) is: and (3) heating the toughening furnace to 410 ℃, transferring the glass to be treated into the toughening furnace from the preheating furnace after the temperature in the toughening furnace reaches 370 ℃, setting the toughening time to be 240min, and adding liquid potassium nitrate into the toughening furnace.
After the treatment of this example, the stress layer of 0.10mm glass reached 12 μm, and the stress value could reach 650MPa, but the pretreatment cost also increased.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalent solutions without departing from the spirit and scope of the technical solutions, and all should be covered in the claims of the present invention.
Claims (6)
1. A pretreatment method before coating of 0.10mm glass is characterized by comprising the following steps:
preheating and strengthening 0.10mm glass, dripping salt and slowly cooling,
the specific method comprises the following steps:
(1) Preheating
Placing glass to be treated in a preheating furnace, and slowly preheating the temperature in the preheating furnace to 365-375 ℃;
(2) Reinforcement of
Heating the toughening furnace to 385-395 ℃, transferring the glass to be treated into the toughening furnace from the preheating furnace after the temperature in the toughening furnace reaches 365-375 ℃, setting the toughening time to be 110-130 min, and adding liquid potassium nitrate into the toughening furnace;
(3) Salt drop
Sealing the toughening furnace, keeping the temperature in the furnace at 390 ℃, and dropping salt;
(4) Slow cooling
After the salt dripping is finished, transferring the glass into a preheating furnace, opening a fan at the top of the preheating furnace, and slowly cooling the inside of the preheating furnace; when the temperature in the preheating furnace is reduced to 245-255 ℃, opening 1/3 of the furnace door; when the temperature is reduced to 195-205 ℃, opening a 2/3 furnace door; when the temperature is reduced to 145-155 ℃, opening the whole furnace door;
(5) Boxing ready-to-plate
When the temperature in the preheating furnace is reduced to 95-105 ℃, removing the glass, cooling to room temperature, and boxing for plating;
after cooling to room temperature, the stress layer of the glass is 7.8-8.0 μm, 8.0-8.3 μm or 8.3-8.5 μm.
2. The pretreatment method of 0.10mm glass before coating according to claim 1, wherein the pretreatment method comprises the following steps:
and inserting the to-be-processed 0.10mm glass into a toughening groove of a toughening frame, and carrying out preheating strengthening and salt dripping slow cooling by taking the toughening frame as a whole.
3. The pretreatment method of 0.10mm glass before coating according to claim 2, wherein the pretreatment method comprises the following steps:
cover plate glass with the height higher than 0.10mm glass by 2.5-3.5 mm is dispersedly inserted into the toughening grooves of the toughening frame, two pressure rods are fixed at the upper part of the cover plate glass, and the to-be-processed 0.10mm glass is vertically inserted into the rest toughening grooves.
4. The pretreatment method of claim 3, wherein the pretreatment method comprises the following steps:
the preheating time in the step (1) is not less than 90min.
5. The pretreatment method of claim 3, wherein the pretreatment method comprises the following steps:
the time for dripping the salt in the step (3) is not less than 30min.
6. The pretreatment method of 0.10mm glass before coating according to claim 1, wherein the pretreatment method comprises the following steps:
and (5) before the box is plated, the toughening strength of the 0.10mm glass is required to be checked.
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| CN202011553871.8A CN112745016B (en) | 2020-12-24 | 2020-12-24 | Pretreatment method before film coating of 0.10mm glass |
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| CN112745016B true CN112745016B (en) | 2022-10-18 |
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