CN112026300A - PVB interlayer sound insulation film glass processing technology - Google Patents
PVB interlayer sound insulation film glass processing technology Download PDFInfo
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- CN112026300A CN112026300A CN202010838778.5A CN202010838778A CN112026300A CN 112026300 A CN112026300 A CN 112026300A CN 202010838778 A CN202010838778 A CN 202010838778A CN 112026300 A CN112026300 A CN 112026300A
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- 239000011521 glass Substances 0.000 title claims abstract description 96
- 239000011229 interlayer Substances 0.000 title claims abstract description 27
- 238000009413 insulation Methods 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 title claims abstract description 16
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 28
- 238000005096 rolling process Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- 238000004321 preservation Methods 0.000 claims description 15
- 239000005340 laminated glass Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000003749 cleanliness Effects 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229910021542 Vanadium(IV) oxide Inorganic materials 0.000 claims description 3
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 claims description 3
- 229940069446 magnesium acetate Drugs 0.000 claims description 3
- 235000011285 magnesium acetate Nutrition 0.000 claims description 3
- 239000011654 magnesium acetate Substances 0.000 claims description 3
- 239000011858 nanopowder Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 claims description 3
- GRUMUEUJTSXQOI-UHFFFAOYSA-N vanadium dioxide Chemical compound O=[V]=O GRUMUEUJTSXQOI-UHFFFAOYSA-N 0.000 claims description 3
- 238000010030 laminating Methods 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000005336 safety glass Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/162—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention relates to a processing technology of PVB interlayer sound insulation film glass, which comprises the following steps: s1: appearance and dimensional inspection of glass; s2: washing with pure water at 35-42 deg.C; s3: drying with hot air; s4: combining the sheets in a clean room; s5: primary heating; s6: primary rolling prepressing; s7: secondary heating; s8: secondary rolling prepressing; s9: inspecting the effect of the prepressing surface; s10: mounting the autoclave on a trolley; s11: final shaping in an autoclave; s12: inspecting the product piece by piece; s13: and (6) packaging the product. The invention limits the temperature and humidity of the laminating chamber, ensures the sound insulation effect of the sound insulation film, ensures that the bonding strength of the PVB film layer and the glass is better, and improves the product quality; in the rolling prepressing process, the secondary rolling prepressing is adopted, the furnace temperature is divided into three temperature zones, the temperature of each temperature zone, the corresponding prepressing speed and the prepressing pressure are set, and the corresponding process flow set in the high-pressure kettle after the rolling prepressing is formed is adopted, so that the problem of poor edge sealing of the glass can be effectively solved, and the defects of the edge of the glass can be eliminated.
Description
Technical Field
The invention belongs to the technical field of glass processing, and particularly relates to a processing technology of PVB interlayer sound insulation film glass.
Background
PVB laminated glass, also called safety glass, is more and more in demand on the current curtain wall market, and laminated glass with different colors and different performances has demands. However, in the production process of laminated glass, due to the non-standard processing technology, various problems of unstable quality occur, such as poor edge sealing, low goodness of fit between the intermediate film layer (PVB film layer) and the glass, defects at the edges of the glass, and the like, so that the yield of the glass is low. Further, laminated glass which can further improve the sound insulation effect and further improve the safety is strongly demanded in the market. Therefore, we propose a process for processing PVB interlayer soundproof film glass to solve the above mentioned problems in the background art.
Disclosure of Invention
The invention aims to provide a PVB interlayer sound insulation film glass processing technology to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a PVB interlayer sound-proof membrane glass processing technology comprises two layers of glass and a PVB membrane layer positioned between the two layers of glass;
PVB rete includes upper and lower two-layer PVB layer and is located the puigging between the PVB layer, and this puigging includes the raw materials that weighs according to following parts by weight: 20-25 parts of vanadium dioxide nano powder, 15-18 parts of polyvinyl alcohol, 8-12 parts of PVB resin powder, 5-8 parts of tetraethyleneglycol diisocaprylate, 2-3 parts of potassium formate and 3-5 parts of magnesium acetate;
the PVB interlayer sound insulation film glass processing technology comprises the following steps:
s1: appearance and dimensional inspection of glass;
s2: washing with pure water at 35-42 deg.C;
s3: drying with hot air;
s4: combining the sheets in a clean room;
s5: primary heating;
s6: primary rolling prepressing;
s7: secondary heating;
s8: secondary rolling prepressing;
s9: inspecting the effect of the prepressing surface;
s10: mounting the autoclave on a trolley;
s11: final shaping in an autoclave;
s12: inspecting the product piece by piece;
s13: and (6) packaging the product.
Preferably, the temperature of the clean room in the step S4 should be controlled between 20-25 ℃, the relative humidity should be controlled between 20-30%, and the cleanliness is of the hundred thousand grade or more.
Preferably, the roll gap between the step S6 and the step S8 is 1-3mm smaller than the total thickness of the glass and the PVB film layer, and the surface temperature of the middle part of the glass is 60-70 ℃ when the glass is taken out of the last roll.
Preferably, in the steps S5 and S7, the heating temperature is maintained at 70-110 ℃.
Preferably, in the steps S6 and S8, the furnace temperature is divided into three temperature regions, the temperature of the upper and lower parts of the first temperature region is maintained at 160-; when rolling and prepressing, the glass sequentially passes through a first temperature zone, a second temperature zone and a third temperature zone.
Preferably, in the step S6 and the step S8, the prepressing speed is kept at 1.3-3.4m/min, and the thicker the glass, the lower the speed; the pressure of the press rolls was maintained at 6.0-7.5 bar.
Preferably, in S11, the pressurization is started when the temperature of the glass plate surface is higher than 45 ℃, and then the glass plate surface enters into the heat preservation stage, wherein the surface temperature of the glass is kept at 120-145 ℃, the glass plate surface is uniformly pressurized at 1-1.3MPa, the heat preservation time is at least 30 minutes, and the heat preservation time is prolonged along with the increase of the glass thickness; after the heat preservation is finished, the air is released and the pressure is relieved when the temperature of the surface of the glass plate is lower than 45 ℃.
Compared with the prior art, the invention has the beneficial effects that: according to the processing technology of the PVB interlayer sound insulation film glass, the temperature and the humidity of a laminating chamber are limited, the sound insulation effect of the sound insulation film is ensured, the bonding strength of a PVB film layer and the glass is better, and the product quality is improved; in the rolling prepressing process, the secondary rolling prepressing is adopted, the furnace temperature is divided into three temperature zones, the temperature of each temperature zone, the corresponding prepressing speed and the prepressing pressure are set, and the corresponding process flow set in the autoclave after the rolling prepressing is formed, so that the problem of poor edge sealing of the glass can be effectively solved, the defects of the edge of the glass can be eliminated, and the product quality is further improved. The process can improve the goodness of fit between the PVB film and the glass and improve the yield of products.
Drawings
FIG. 1 is a schematic flow diagram of a PVB interlayer acoustic membrane glass processing process of the present invention;
FIG. 2 is a schematic representation of the bonding principle of a PVB interlayer acoustic membrane of the present invention to glass;
FIG. 3 is a schematic diagram of the parameters of the pre-pressing process in steps S6 and S8 according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a process for processing a PVB interlayer sound-proof film glass as shown in figures 1-3, the PVB interlayer sound-proof film glass comprises two layers of glass and a PVB film layer positioned between the two layers of glass;
PVB rete includes upper and lower two-layer PVB layer and is located the puigging between the PVB layer, and this puigging includes the raw materials that weighs according to following parts by weight: 20-25 parts of vanadium dioxide nano powder, 15-18 parts of polyvinyl alcohol, 8-12 parts of PVB resin powder, 5-8 parts of tetraethyleneglycol diisocaprylate, 2-3 parts of potassium formate and 3-5 parts of magnesium acetate;
the PVB interlayer sound insulation film glass processing technology comprises the following steps:
s1: appearance and dimensional inspection of glass;
s2: washing with pure water at 35-42 deg.C;
s3: drying with hot air;
s4: combining the sheets in a clean room;
s5: primary heating;
s6: primary rolling prepressing;
s7: secondary heating;
s8: secondary rolling prepressing;
s9: inspecting the effect of the prepressing surface;
s10: mounting the autoclave on a trolley;
s11: final shaping in an autoclave;
s12: inspecting the product piece by piece;
s13: and (6) packaging the product.
The bonding principle of the PVB film layer (namely the PVB interlayer sound insulation film) and the glass is as follows: the PVB interlayer acoustic film hydrogen bonds to the glass (as shown in figure 2).
Specifically, the temperature of the clean room in the step S4 should be controlled to be 20-25 ℃, the relative humidity should be controlled to be 20-30%, and the cleanliness is hundreds of thousands of grades or better.
Controlling the cleanliness of the laminated sheet:
a double-layer door as an entrance transition chamber;
slightly positive pressure filtered dry air;
the access of irrelevant personnel is limited;
personnel equipment: fiber-free outer sleeves and hair sleeves;
the floor, walls and equipment (including overhead items) are cleaned periodically.
Environmental control of the laminating room (i.e. clean room):
the temperature of the laminating chamber is controlled to be between 20 and 25 ℃, and the optimal temperature range is 22 +/-2 ℃.
The relative humidity of the laminating chamber is controlled to be between 20% and 30%, and the optimal relative humidity range is as follows: 23 to 27 percent.
Cleanliness of the sheet combining chamber: a hundred thousand grade or more.
Temperature of the laminating chamber: PVB has stable performance at the ambient temperature of 20-25 ℃, has high temperature, causes the performance to be deteriorated, obviously reduces the hardness, causes the surface texture to be damaged, and causes difficulty in prepressing and exhausting; the temperature is low, the brittleness and the hardness of PVB are increased, and stacking error and shrinkage films are easy to generate during laminating.
Relative humidity of the laminating chamber: because the water content of the PVB is in a direct proportional function relationship with the relative humidity of the placement environment, and the bonding strength of the PVB and the glass is in an inverse proportional function relationship with the water content of the PVB, the relative humidity in the laminating room environment must be controlled.
Specifically, the roll gap between the step S6 and the step S8 is 1-3mm smaller than the total thickness of the glass and the PVB film layer, and the surface temperature of the middle part of the glass is 60-70 ℃ when the glass is subjected to the last roll.
Prepressing a lower segment process:
the process control parameters of the segments under different prepresses of the equipment are different, but the principle is the same, namely: gas between the PVB and the glass is discharged, a primary edge sealing is formed, and the yield of the production line is improved.
The laminated glass is made of the toughened glass, and attention must be paid to properly increasing the thickness of the PVB and the goodness of fit between the toughened glass.
The suggested basic parameters are as follows: the press nip is 3mm less than the total thickness of glass plus PVB. The surface temperature of the middle part of the glass is 60-70 ℃ when the glass is discharged out of the last press roll.
Specifically, in the steps S5 and S7, the heating temperature is maintained at 70-110 ℃.
Specifically, in the step S6 and the step S8, the furnace temperature is divided into three temperature regions, wherein the temperatures of the upper and lower parts of the first temperature region are all maintained at 160-; when rolling and prepressing, the glass sequentially passes through a first temperature zone, a second temperature zone and a third temperature zone.
Specifically, in the step S6 and the step S8, the prepressing speed is kept at 1.3-3.4m/min, and the thicker the glass, the lower the speed; the pressure of the press rolls was maintained at 6.0-7.5 bar.
Specifically, in S11, the pressurization is started when the temperature of the glass plate surface is higher than 45 ℃, and then the glass plate surface enters into the heat preservation stage, wherein the surface temperature of the glass is kept at 120-145 ℃ in the heat preservation stage, the glass plate surface is uniformly pressurized at 1-1.3MPa, the heat preservation time is at least 30 minutes, and the heat preservation time is prolonged along with the increase of the glass thickness; after the heat preservation is finished, the air is released and the pressure is relieved when the temperature of the surface of the glass plate is lower than 45 ℃.
The autoclave process comprises the following steps:
ensuring that the surface temperature of the glass is between 120 and 145 ℃ in the heat preservation stage and the maximum limit temperature is less than 150 ℃.
Ensuring that the glass plate surface is uniformly pressed by 1MPa-1.3 MPa.
The heat preservation time is ensured to be at least 30 minutes, and is prolonged along with the increase of the thickness of the glass.
The pressurization is started at the glass surface temperature of more than 45 ℃, and the air release and pressure relief are started when the glass surface temperature is lower than 45 ℃, so that the edge defects of the glass are favorably and completely eliminated.
Specifically, the cleaning quality factor of the glass is controlled in step S2:
the temperature of the cleaning water must be controlled between 35 ℃ and 42 ℃, oil stains cannot be cleaned when the temperature is too low, and organic impurities are easy to be bonded with glass when the temperature is too high;
the spraying pipes and the spraying heads are smooth and regularly cleaned, so that the whole piece of glass for the interlayer is fully leached.
Cleaning and regularly replacing a filter screen of the drying air: ensuring the cleanness of the blow-dry glass wind;
the air knife is smooth to clean and the matching of air quantity and air pressure is proper: ensuring that a sufficient amount of clean air blows the glass dry.
Clearance and maintenance of disc brush and rolling brush: the gap needs to be proper, and if the gap is too small, the glass surface is scratched; the glass cannot be cleaned when the size is too large;
the disc brush and the rolling brush are cleaned regularly, and the motion stability of the disc brush and the rolling brush is adjusted.
Compared with the sound insulation test of the same decibel and environment, the sound insulation effect of the PVB interlayer sound insulation film glass prepared by the process can be obviously improved by 50 percent.
In conclusion, compared with the prior art, the temperature and the humidity of the laminating chamber are limited, the sound insulation effect of the sound insulation film is ensured, the bonding strength of the PVB film layer and the glass is better, and the product quality is improved; in the rolling prepressing process, the secondary rolling prepressing is adopted, the furnace temperature is divided into three temperature zones, the temperature of each temperature zone, the corresponding prepressing speed and the prepressing pressure are set, and the corresponding process flow set in the autoclave after the rolling prepressing is formed, so that the problem of poor edge sealing of the glass can be effectively solved, the defects of the edge of the glass can be eliminated, and the product quality is further improved. The process can improve the goodness of fit between the PVB film and the glass and improve the yield of products.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. A PVB interlayer sound insulation film glass processing technology is characterized in that:
the PVB interlayer sound insulation film glass comprises two layers of glass and a PVB film layer positioned between the two layers of glass;
PVB rete includes upper and lower two-layer PVB layer and is located the puigging between the PVB layer, and this puigging includes the raw materials that weighs according to following parts by weight: 20-25 parts of vanadium dioxide nano powder, 15-18 parts of polyvinyl alcohol, 8-12 parts of PVB resin powder, 5-8 parts of tetraethyleneglycol diisocaprylate, 2-3 parts of potassium formate and 3-5 parts of magnesium acetate;
the PVB interlayer sound insulation film glass processing technology comprises the following steps:
s1: appearance and dimensional inspection of glass;
s2: washing with pure water at 35-42 deg.C;
s3: drying with hot air;
s4: combining the sheets in a clean room;
s5: primary heating;
s6: primary rolling prepressing;
s7: secondary heating;
s8: secondary rolling prepressing;
s9: inspecting the effect of the prepressing surface;
s10: mounting the autoclave on a trolley;
s11: final shaping in an autoclave;
s12: inspecting the product piece by piece;
s13: and (6) packaging the product.
2. The process of claim 1, wherein the PVB interlayer is used in the manufacture of sound-proof laminated glass: the temperature of the clean room in the step S4 should be controlled between 20-25 ℃, the relative humidity should be controlled between 20-30%, and the cleanliness is hundreds of thousands grade or more.
3. The process of claim 1, wherein the PVB interlayer is used in the manufacture of sound-proof laminated glass: the roll gap of the rolling in the step S6 and the step S8 is 1-3mm smaller than the total thickness of the glass and the PVB film layer, and the surface temperature of the middle part of the glass is 60-70 ℃ when the glass is rolled out of the last roll.
4. The process of claim 1, wherein the PVB interlayer is used in the manufacture of sound-proof laminated glass: in the steps S5 and S7, the heating temperature is maintained at 70-110 ℃.
5. The process of claim 1, wherein the PVB interlayer is used in the manufacture of sound-proof laminated glass: in the steps S6 and S8, the furnace temperature is divided into three temperature regions, wherein the temperatures of the upper part and the lower part of the first temperature region are kept at 200 ℃ of 160-; when rolling and prepressing, the glass sequentially passes through a first temperature zone, a second temperature zone and a third temperature zone.
6. The process of claim 1, wherein the PVB interlayer is used in the manufacture of sound-proof laminated glass: in the step S6 and the step S8, the prepressing speed is kept at 1.3-3.4m/min, and the thicker the glass is, the lower the speed is; the pressure of the press rolls was maintained at 6.0-7.5 bar.
7. The process of claim 1, wherein the PVB interlayer is used in the manufacture of sound-proof laminated glass: in the step S11, pressurizing is started when the temperature of the glass plate surface is higher than 45 ℃, and then the glass plate surface enters a heat preservation stage, wherein the surface temperature of the glass is kept at 120-145 ℃, the glass plate surface is uniformly pressurized at 1-1.3MPa, the heat preservation time is at least 30 minutes, and the heat preservation time is prolonged along with the increase of the glass thickness; after the heat preservation is finished, the air is released and the pressure is relieved when the temperature of the surface of the glass plate is lower than 45 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838778.5A CN112026300A (en) | 2020-08-19 | 2020-08-19 | PVB interlayer sound insulation film glass processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN103951288A (en) * | 2014-04-28 | 2014-07-30 | 张家港市大明玻璃制品有限公司 | Production method of multiple-effect sound-insulating laminated glass |
| CN105835497A (en) * | 2016-03-30 | 2016-08-10 | 中国科学院广州能源研究所 | Preparation method for intelligent heat-insulation sound-insulation PVB film and preparation method for PVB film laminated glass |
| CN109397845A (en) * | 2018-11-20 | 2019-03-01 | 和县晶晶玻璃制品有限公司 | A kind of processing method of special type synthetic glass |
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| CN103951288A (en) * | 2014-04-28 | 2014-07-30 | 张家港市大明玻璃制品有限公司 | Production method of multiple-effect sound-insulating laminated glass |
| CN105835497A (en) * | 2016-03-30 | 2016-08-10 | 中国科学院广州能源研究所 | Preparation method for intelligent heat-insulation sound-insulation PVB film and preparation method for PVB film laminated glass |
| CN109397845A (en) * | 2018-11-20 | 2019-03-01 | 和县晶晶玻璃制品有限公司 | A kind of processing method of special type synthetic glass |
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