CN110903036A - Processing technology for assembling oven door glass through water-cut glass - Google Patents
Processing technology for assembling oven door glass through water-cut glass Download PDFInfo
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- CN110903036A CN110903036A CN201911161707.XA CN201911161707A CN110903036A CN 110903036 A CN110903036 A CN 110903036A CN 201911161707 A CN201911161707 A CN 201911161707A CN 110903036 A CN110903036 A CN 110903036A
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- glass blank
- water
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- 239000011521 glass Substances 0.000 title claims abstract description 224
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 238000005520 cutting process Methods 0.000 claims abstract description 23
- 238000005498 polishing Methods 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000003566 sealing material Substances 0.000 claims abstract description 11
- 238000005496 tempering Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract 2
- 238000000227 grinding Methods 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 9
- 239000005341 toughened glass Substances 0.000 claims description 7
- 239000007888 film coating Substances 0.000 claims description 5
- 238000009501 film coating Methods 0.000 claims description 5
- 238000003698 laser cutting Methods 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003672 processing method Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 8
- 238000005086 pumping Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- 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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0664—Accessories
-
- 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
-
- 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
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
-
- 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
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/216—ZnO
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Thermal Sciences (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention relates to the technical field of oven door processing, and discloses a processing technology for assembling oven door glass by water-cut glass, which comprises the following steps of (1) blanking: selecting a glass plate, and cutting the glass plate into two glass blank materials; (2) polishing; (3) grooving: cutting and grooving the glass blank, and forming an air exhaust hole in one of the glass blanks; (4) tempering; (5) cleaning; (6) coating to obtain a finished glass plate; (7) combining: the finished glass plates are relatively attached, and the periphery of the finished glass plates is filled with a low-melting-point sealing material to obtain combined glass, the combined glass is sent into an edge sealing furnace for low-temperature heating, a sealing cavity is vacuumized, and an air suction hole is sealed; (8) assembling; (9) and (6) checking. The processing technology disclosed by the invention has the advantages of simple preparation method, low cost and high production efficiency, and the oven door glass manufactured by the processing method disclosed by the invention has better sound insulation and heat insulation effects, high strength, long service life and high safety.
Description
Technical Field
The invention relates to the technical field of oven door processing, in particular to a processing technology for assembling oven door glass by water-cut glass.
Background
The toaster includes a main body having a toaster case and a toaster door coupled to the main body, the toaster door having a glass plate mounted thereon so as to view an interior of the toaster case. The existing oven door glass is complex in preparation method and high in preparation cost, most of the existing oven door glass is supported by single-layer glass, the sound insulation and heat insulation effects are poor, the compression resistance and the impact resistance are insufficient, and the human body damage can be caused when the glass is broken.
Disclosure of Invention
In order to solve the prior technical problems, the invention provides a processing technology for assembling oven door glass by water-cut glass.
In order to achieve the purpose, the invention adopts the following technical scheme: a processing technology for assembling oven door glass by water-cut glass comprises the following steps:
(1) blanking: selecting a glass plate, testing the flatness of the glass plate, cutting the qualified glass plate into two glass blank blanks with completely the same shape and size by using a water cutting machine, determining the size of the glass blank blanks according to the door of an oven, controlling the size error range to be +/-0.2 mm, reserving 0.6cm of side edge grinding allowance, controlling the high-pressure water injection pressure of the water cutting machine to be 300-350 MPa, and controlling the continuous injection time of the same position to be 2-6 s;
(2) polishing: polishing the periphery of the glass blank, and chamfering the corners of the glass blank;
(3) grooving: cutting and grooving the glass blank polished in the step (2) by using a laser cutting machine, wherein the depth of the groove is 24-45% of the thickness of the glass blank, the area of the groove is 50-70% of the surface area of the glass blank, the position of the groove is the center of the glass blank, an air suction hole is formed in one glass blank, and the air suction hole is communicated with the groove in the glass blank where the air suction hole is formed;
(4) tempering: tempering the grooved glass blank;
(5) cleaning: cleaning the toughened glass blank by pure water through ultrasonic vibration;
(6) film coating: plating an AZO film on the surface of the cleaned glass blank which is not grooved, wherein the thickness of the AZO film is 0.1-0.3 mm, and obtaining a finished glass plate;
(7) combining: the surfaces of the finished glass plates in the step (6) provided with the grooves are relatively attached, low-melting-point sealing materials are filled at the peripheries of the two finished glass plates, the grooves of the two finished glass plates form a sealing cavity to obtain combined glass, the combined glass is sent into an edge sealing furnace at 220-470 ℃ for low-temperature heating to melt and seal the low-melting-point sealing materials, and meanwhile, the sealing cavity is vacuumized and the air exhaust holes are sealed through the air exhaust holes to obtain an oven glass plate;
(8) assembling: preparing an oven door frame according to the size of the oven glass plate in the step (7), embedding a sealing buffer layer on the peripheral surface of the oven door frame, wherein the thickness of the sealing buffer layer is 2 mm-4 mm, assembling the oven glass plate in the step (7) on the oven door frame, and then assembling a handle and a hinge piece to obtain oven door glass;
(9) and (4) checking: and (4) inspecting and accepting the oven door glass in the step (8) by an inspector, packaging the qualified glass, and warehousing the qualified glass, and repairing the unqualified glass.
Preferably, the step (2) is to use a linear edge grinding machine to perform grinding processing, including rough grinding, fine grinding and polishing, and then use a chamfering machine to perform chamfering processing, and ensure that the size and the shape of the two glass blank blanks and the size and the shape of the chamfer thereof are the same.
Preferably, the toughening in the step (4) is specifically that the grooved glass blank is sent to a channel type toughening furnace through a roller way, heat treatment is sequentially carried out according to intervals, wherein the temperature of a first interval is 530-550 ℃, the time is 2-4 min, the temperature of a second interval is 630-650 ℃, the time is 2-4 min, the temperature of a third interval is 680-700 ℃, the time is 1-2 min, the glass is taken out of the toughening furnace, then high-pressure air is rapidly cooled to 160-180 ℃, and then air is naturally cooled to room temperature.
Preferably, when the surface of the glass blank is worn or scratched in the cleaning process in the step (5), the glass blank is placed into a grinding machine, polishing powder is added into the grinding machine for flat grinding, and flaws and scratches on the surface of the glass blank are eliminated.
The invention discloses a processing technology of oven door glass, which is formed by combining two pieces of glass, wherein a vacuum sealing cavity is arranged between the two pieces of glass, and the vacuum sealing cavity can play a role in sound insulation and heat insulation. The invention combines the vacuum sealing cavity with the AZO film, and can form the best effect of sound insulation and heat insulation.
The glass is heated in three sections in the toughening step, the surface stress is formed more uniformly, and the method can avoid the phenomenon that the surface of the toughened glass is uneven due to uneven stress of the glass, so that the slight deformation phenomenon after the glass is toughened is improved, the performance of the toughened glass is greatly improved, and the pressure resistance and the impact resistance are stronger.
Compared with the prior art, the processing technology disclosed by the invention has the advantages of simple preparation method, low cost and high production efficiency, and the oven door glass manufactured by the processing method disclosed by the invention has better sound insulation and heat insulation effects, high strength, long service life and high safety.
Detailed Description
Example 1
A processing technology for assembling oven door glass by water-cut glass comprises the following steps:
(1) blanking: selecting a glass plate, testing the flatness of the glass plate, cutting the qualified glass plate into two glass blank blanks with completely the same shape and size by using a water cutting machine, determining the size of the glass blank blanks according to the glass of an oven door, controlling the size error range to be +/-0.2 mm, reserving 0.6cm of side edge grinding allowance, controlling the high-pressure water jet pressure of the water cutting machine to be 300-350 MPa, and controlling the continuous jet time of the same position to be 2 s.
(2) Polishing: and grinding the periphery of the glass blank by using a linear edge grinding machine, wherein the grinding, the fine grinding and the polishing are completed at one time, and then chamfering is performed on the corners of the glass blank by using a chamfering machine, so that the sizes and the shapes of the two glass blanks and the sizes and the shapes of the chamfers are the same.
(3) Grooving: and (3) cutting and grooving the glass blank polished in the step (2) by using a laser cutting machine, wherein the depth of the groove is 24% of the thickness of the glass blank, the area of the groove is 50% of the surface area of the glass blank, the position of the groove is the center of the glass blank, an air suction hole is formed in one glass blank, and the air suction hole is communicated with the groove in the glass blank where the air suction hole is located.
(4) Tempering: the grooved glass blank is firstly sent into a channel type toughening furnace through a roller way, heat treatment is sequentially carried out according to intervals, wherein the temperature of a first interval is 530-550 ℃ for 2min, the temperature of a second interval is 630-650 ℃ for 4min, the temperature of a third interval is 680-700 ℃ for 1min, high-pressure air is rapidly cooled to 160 ℃ after the glass is taken out of the toughening furnace, and then the air is naturally cooled to room temperature.
(5) Cleaning: cleaning the toughened glass blank by pure water through ultrasonic vibration, and when the surface of the glass blank is worn or scratched in the cleaning process, putting the glass blank into a grinding machine, adding polishing powder into the grinding machine, and carrying out flat grinding to eliminate flaws and scratches on the surface of the glass blank.
(6) Film coating: plating an AZO film on the surface of the cleaned glass blank which is not grooved, wherein the thickness of the AZO film is 0.1mm, and obtaining a finished glass plate;
(7) combining: the surfaces of the finished glass plates in the step (6) provided with the grooves are oppositely attached, low-melting-point sealing materials are filled at the peripheries of the two finished glass plates, the grooves of the two finished glass plates form a sealing cavity to obtain combined glass, the combined glass is sent into a 220 ℃ edge sealing furnace for low-temperature heating to melt and seal the low-melting-point sealing materials, and meanwhile, the sealing cavity is vacuumized and the air exhaust holes are sealed through the air exhaust holes to obtain an oven glass plate;
(8) assembling: preparing an oven door frame according to the size of the oven glass plate in the step (7), embedding a sealing buffer layer on the peripheral surface of the oven door frame, wherein the thickness of the sealing buffer layer is 2mm, assembling the oven glass plate in the step (7) on the oven door frame, and then assembling a handle and a hinge piece to obtain oven door glass;
(9) and (4) checking: and (4) inspecting and accepting the oven door glass in the step (8) by an inspector, packaging the qualified glass, and warehousing the qualified glass, and repairing the unqualified glass.
Example 2
A processing technology for assembling oven door glass by water-cut glass comprises the following steps:
(1) blanking: selecting a glass plate, testing the flatness of the glass plate, cutting the qualified glass plate into two glass blank blanks with completely the same shape and size by using a water cutting machine, determining the size of the glass blank blanks according to the glass of an oven door, controlling the size error range to be +/-0.2 mm, reserving 0.6cm of side edge grinding allowance, controlling the high-pressure water jet pressure of the water cutting machine to be 300-350 MPa, and controlling the continuous jet time of the same position to be 5 s.
(2) Polishing: and grinding the periphery of the glass blank by using a linear edge grinding machine, wherein the grinding, the fine grinding and the polishing are completed at one time, and then chamfering is performed on the corners of the glass blank by using a chamfering machine, so that the sizes and the shapes of the two glass blanks and the sizes and the shapes of the chamfers are the same.
(3) Grooving: and (3) cutting and grooving the glass blank polished in the step (2) by using a laser cutting machine, wherein the depth of the groove is 38% of the thickness of the glass blank, the area of the groove is 59% of the surface area of the glass blank, the position of the groove is the center of the glass blank, an air suction hole is formed in one glass blank, and the air suction hole is communicated with the groove in the glass blank where the air suction hole is located.
(4) Tempering: the grooved glass blank is firstly sent into a channel type toughening furnace through a roller way, heat treatment is sequentially carried out according to intervals, wherein the temperature of a first interval is 530-550 ℃ for 3min, the temperature of a second interval is 630-650 ℃ for 3min, the temperature of a third interval is 680-700 ℃ for 1.5min, high-pressure air is rapidly cooled to 175 ℃ after the glass is taken out of the toughening furnace, and then the air is naturally cooled to room temperature.
(5) Cleaning: cleaning the toughened glass blank by pure water through ultrasonic vibration, and when the surface of the glass blank is worn or scratched in the cleaning process, putting the glass blank into a grinding machine, adding polishing powder into the grinding machine, and carrying out flat grinding to eliminate flaws and scratches on the surface of the glass blank.
(6) Film coating: plating an AZO film on the surface of the cleaned glass blank which is not grooved, wherein the thickness of the AZO film is 0.27mm, and obtaining a finished glass plate;
(7) combining: the surfaces of the finished glass plates in the step (6) provided with the grooves are oppositely attached, low-melting-point sealing materials are filled at the peripheries of the two finished glass plates, the grooves of the two finished glass plates form a sealing cavity to obtain combined glass, the combined glass is sent into an edge sealing furnace at 376 ℃ for low-temperature heating to melt and seal the low-melting-point sealing materials, and meanwhile, the sealing cavity is vacuumized and the air exhaust holes are sealed through the air exhaust holes to obtain an oven glass plate;
(8) assembling: preparing an oven door frame according to the size of the oven glass plate in the step (7), embedding a sealing buffer layer on the peripheral surface of the oven door frame, wherein the thickness of the sealing buffer layer is 2.9mm, assembling the oven glass plate in the step (7) on the oven door frame, and then assembling a handle and a hinge piece to obtain oven door glass;
(9) and (4) checking: and (4) inspecting and accepting the oven door glass in the step (8) by an inspector, packaging the qualified glass, and warehousing the qualified glass, and repairing the unqualified glass.
Example 3
A processing technology for assembling oven door glass by water-cut glass comprises the following steps:
(1) blanking: selecting a glass plate, testing the flatness of the glass plate, cutting the qualified glass plate into two glass blank blanks with completely the same shape and size by using a water cutting machine, determining the size of the glass blank blanks according to the glass of an oven door, controlling the size error range to be +/-0.2 mm, reserving 0.6cm of side edge grinding allowance, controlling the high-pressure water jet pressure of the water cutting machine to be 300-350 MPa, and controlling the continuous jet time of the same position to be 6 s.
(2) Polishing: and grinding the periphery of the glass blank by using a linear edge grinding machine, wherein the grinding, the fine grinding and the polishing are completed at one time, and then chamfering is performed on the corners of the glass blank by using a chamfering machine, so that the sizes and the shapes of the two glass blanks and the sizes and the shapes of the chamfers are the same.
(3) Grooving: and (3) cutting and grooving the glass blank polished in the step (2) by using a laser cutting machine, wherein the depth of the groove is 45% of the thickness of the glass blank, the area of the groove is 70% of the surface area of the glass blank, the position of the groove is the center of the glass blank, an air suction hole is formed in one glass blank, and the air suction hole is communicated with the groove in the glass blank where the air suction hole is located.
(4) Tempering: the grooved glass blank is firstly sent into a channel type toughening furnace through a roller way, heat treatment is sequentially carried out according to intervals, wherein the temperature of a first interval is 530-550 ℃ for 4min, the temperature of a second interval is 630-650 ℃ for 2min, the temperature of a third interval is 680-700 ℃ for 2min, high-pressure air is rapidly cooled to 180 ℃ after the glass is taken out of the toughening furnace, and then the air is naturally cooled to room temperature.
(5) Cleaning: cleaning the toughened glass blank by pure water through ultrasonic vibration, and when the surface of the glass blank is worn or scratched in the cleaning process, putting the glass blank into a grinding machine, adding polishing powder into the grinding machine, and carrying out flat grinding to eliminate flaws and scratches on the surface of the glass blank.
(6) Film coating: plating an AZO film on the surface of the cleaned glass blank which is not grooved, wherein the thickness of the AZO film is 0.3mm, and obtaining a finished glass plate;
(7) combining: the surfaces of the finished glass plates in the step (6) provided with the grooves are oppositely attached, low-melting-point sealing materials are filled at the peripheries of the two finished glass plates, the grooves of the two finished glass plates form a sealing cavity to obtain combined glass, the combined glass is sent into a 470 ℃ edge sealing furnace for low-temperature heating to melt and seal the low-melting-point sealing materials, and meanwhile, the sealing cavity is vacuumized and the air pumping holes are sealed through the air pumping holes to obtain an oven glass plate;
(8) assembling: preparing an oven door frame according to the size of the oven glass plate in the step (7), embedding a sealing buffer layer on the peripheral surface of the oven door frame, wherein the thickness of the sealing buffer layer is 4mm, assembling the oven glass plate in the step (7) on the oven door frame, and then assembling a handle and a hinge piece to obtain oven door glass;
(9) and (4) checking: and (4) inspecting and accepting the oven door glass in the step (8) by an inspector, packaging the qualified glass, and warehousing the qualified glass, and repairing the unqualified glass.
Claims (4)
1. A processing technology for assembling oven door glass by water-cutting glass is characterized by comprising the following steps:
(1) blanking: selecting a glass plate, testing the flatness of the glass plate, cutting the qualified glass plate into two glass blank blanks with completely the same shape and size by using a water cutting machine, determining the size of the glass blank blanks according to the door of an oven, controlling the size error range to be +/-0.2 mm, reserving 0.6cm of side edge grinding allowance, controlling the high-pressure water injection pressure of the water cutting machine to be 300-350 MPa, and controlling the continuous injection time of the same position to be 2-6 s;
(2) polishing: polishing the periphery of the glass blank, and chamfering the corners of the glass blank;
(3) grooving: cutting and grooving the glass blank polished in the step (2) by using a laser cutting machine, wherein the depth of the groove is 24-45% of the thickness of the glass blank, the area of the groove is 50-70% of the surface area of the glass blank, the position of the groove is the center of the glass blank, an air suction hole is formed in one glass blank, and the air suction hole is communicated with the groove in the glass blank where the air suction hole is formed;
(4) tempering: tempering the grooved glass blank;
(5) cleaning: cleaning the toughened glass blank by pure water through ultrasonic vibration;
(6) film coating: plating an AZO film on the surface of the cleaned glass blank which is not grooved, wherein the thickness of the AZO film is 0.1-0.3 mm, and obtaining a finished glass plate;
(7) combining: the surfaces of the finished glass plates in the step (6) provided with the grooves are relatively attached, low-melting-point sealing materials are filled at the peripheries of the two finished glass plates, the grooves of the two finished glass plates form a sealing cavity to obtain combined glass, the combined glass is sent into an edge sealing furnace at 220-470 ℃ for low-temperature heating to melt and seal the low-melting-point sealing materials, and meanwhile, the sealing cavity is vacuumized and the air exhaust holes are sealed through the air exhaust holes to obtain an oven glass plate;
(8) assembling: preparing an oven door frame according to the size of the oven glass plate in the step (7), embedding a sealing buffer layer on the peripheral surface of the oven door frame, wherein the thickness of the sealing buffer layer is 2 mm-4 mm, assembling the oven glass plate in the step (7) on the oven door frame, and then assembling a handle and a hinge piece to obtain oven door glass;
(9) and (4) checking: and (4) inspecting and accepting the oven door glass in the step (8) by an inspector, packaging the qualified glass, and warehousing the qualified glass, and repairing the unqualified glass.
2. The process of claim 1, wherein the step of processing the water-cut glass equipped oven door glass comprises the steps of: and (2) grinding by using a linear edge grinding machine, wherein the grinding, the fine grinding and the polishing are completed at one time, and then chamfering is performed by using a chamfering machine, so that the sizes and the shapes of the two glass blank materials and the sizes and the shapes of the chamfers are the same.
3. The process of claim 1, wherein the step of processing the water-cut glass equipped oven door glass comprises the steps of: the toughening in the step (4) is specifically that the grooved glass blank is sent to a channel type toughening furnace through a roller way, heat treatment is sequentially carried out according to intervals, wherein the temperature of a first interval is 530-550 ℃, the time is 2-4 min, the temperature of a second interval is 630-650 ℃, the time is 2-4 min, the temperature of a third interval is 680-700 ℃, the time is 1-2 min, the glass is taken out from the toughening furnace, then high-pressure air is rapidly cooled to 160-180 ℃, and then the air is naturally cooled to room temperature.
4. The process of claim 1, wherein the step of processing the water-cut glass equipped oven door glass comprises the steps of: and (5) when the surface of the glass blank is worn or scratched in the cleaning process, putting the glass blank into a grinding machine, adding polishing powder into the grinding machine, and carrying out flat grinding to eliminate flaws and scratches on the surface of the glass blank.
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