CN103422636A - Double-vacuum-layer composite vacuum insulation plate and preparation method thereof - Google Patents
Double-vacuum-layer composite vacuum insulation plate and preparation method thereof Download PDFInfo
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- CN103422636A CN103422636A CN2013102986523A CN201310298652A CN103422636A CN 103422636 A CN103422636 A CN 103422636A CN 2013102986523 A CN2013102986523 A CN 2013102986523A CN 201310298652 A CN201310298652 A CN 201310298652A CN 103422636 A CN103422636 A CN 103422636A
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Abstract
Provided is a double-vacuum-layer composite vacuum insulation plate. The double-vacuum-layer composite vacuum insulation plate comprises a panel, a core plate and a vacuum chamber. The double-vacuum-layer composite vacuum insulation plate is characterized in that the panel is fixed to the upper surface of the exterior of the vacuum chamber, the core plate is placed at the bottom of the interior of the vacuum chamber, and the panel and/or the core plate provides additional strength for the vacuum chamber to ensure flatness of the vacuum chamber under the atmospheric pressure. The vacuum chamber is a closed chamber body which is formed by a metal plate, the edges of the metal plate are welded to be sealed under the normal pressure, high-temperature sealing is carried out on the metal plate under the condition of the vacuum, and the sealing is carried out, namely an air suction opening formed in the vacuum chamber in advance is automatically sealed by using low-temperature solder according to the liquid sealing principle in a vacuum furnace. A separating plate is arranged in the vacuum chamber, the vacuum chamber is divided into double vacuum layers by the separating plate, and supporting objects are arranged in the vacuum layers. A preparation method of the double-vacuum-layer composite vacuum insulation plate is simple in technology. The prepared double-vacuum-layer composite vacuum insulation plate can overcome the defects of an existing insulation plate and an existing vacuum insulation plate, and can improve strength, thermal insulation performance, soundproof performance, fireproof performance and decorative performance.
Description
Technical field
The present invention relates to the energy-saving building technology field, relate in particular to a kind of pair of vacuum layer composite vacuum insulating plate and preparation method thereof.
Background technology
China's architectural energy consumption accounted for whole society power consumption 1/3 or more and be the trend increased year by year, adopting heat preservation construction material is one of Main Means of reduction building energy consumption.At present building exterior wall heat preserving material used is many is B level heat insulating material, as organic materials such as polystyrene, polyurethane, bipeltates, these organic material heat resistances are poor, easy firing, not only discharge a large amount of heats during burning, produce a large amount of poison gas, and can accelerate large fire spread; Simultaneously, molten contracting can occur in organic material when fire, produce the burning dropping, on the initiation insulation layer, institute's tile fixing comes off, cause possibly spot fire and secondary injury, so national departments concerned is prohibited exterior-wall heat insulation and is used organic insulation material, particularly at highrise building and public building.In combustibility, reach in the heat insulating material of A grade standard, mainly to take the inorganic material that mineral wool and rock wool be representative, but existing home made article has very large gap at aspects such as water absorption rate, intensity, weatherabilities with the Application in Building requirement, it is directly used in to construction wall insulation, water suction, tenesmus, the problem such as softening will occur.In addition, A level heat insulating material cost is far away higher than organic material, and the complicated construction technique construction cost is far beyond the expense of B level heat insulating material, and its heat-insulating property is poor and energy consumption is high, can not meet the needs of national current energy-saving and emission-reduction.
Vacuum heat-insulating plate is a kind of novel heat insulating material grown up in recent years, mainly comprise vacuum bag and core etc., its major advantage is that to belong to A level heat insulating material, good heat insulating, thin thickness, unit mass light etc., but also there is obvious shortcoming difficulty as dry as core, vacuum bag poor air-tightness, puncture-resistant intensity are low, and soon, easily rise bag, insulation life-span of vacuum decay is short etc.In addition, above heat insulating material all needs to increase the decoration overcoat.
Summary of the invention
?technical problem to be solved by this invention is to be for the existing building insulating board, warming plate, the defect that vacuum heat-insulating plate exists, a kind of novel two vacuum layer composite vacuum insulating plates and preparation method thereof are provided, the preparation method technique of this pair of vacuum layer composite vacuum insulating plate is simple, prepared two vacuum layer composite vacuum insulating plates can overcome existing insulating board, the deficiency of vacuum heat-insulating plate and warming plate, can effectively guarantee the tightness of two vacuum layer composite vacuum insulating plates, increase the service life, and can increase its intensity and heat insulation, sound insulation, fireproof performance, also there is good decorative effect simultaneously.
In order to solve the problems of the technologies described above, the invention provides a kind of pair of vacuum layer composite vacuum insulating plate, comprise panel, central layer and vacuum chamber, it is characterized in that described panel is fixed on the outer upper surface of described vacuum chamber by welding or bonding mode, described central layer is placed on the bottom in described vacuum chamber, described panel and or described central layer provide additional strength for described vacuum chamber, guarantee vacuum chamber planarization under atmospheric pressure, described vacuum chamber is to weld edge sealing by metal sheet under normal pressure, under vacuum, high temperature seals and the closed cavity of formation, described sealing is in vacuum drying oven, to utilize solder according to hydraulic seal principle automatic-sealed pre-extract opening on vacuum chamber, described solder comprises low-temperature metal and solder, one dividing plate is arranged in described vacuum chamber, described dividing plate forms two vacuum layer by being divided into two in described vacuum chamber, in described vacuum layer, supporter is arranged, above support be make separately or on vacuum chamber or dividing plate or central layer, directly form.
In order to solve the problems of the technologies described above, the invention provides the preparation method of a kind of pair of vacuum layer composite vacuum insulating plate, it is characterized in that comprising the following steps:
The first step, make respectively a panel, a central layer, a dividing plate and two metal sheets that are used to form vacuum chamber according to shape and the size of two vacuum layer composite vacuum insulating plates of required making, two metal sheets that are used to form vacuum chamber are carried out to the flanging moulding and make supporter or bleed-off passage and extract opening on a metal sheet or on central layer or on dividing plate;
Second step, first be joined together to form composite plate, dividing plate and central layer by welding or bonding mode with a metal sheet by panel and be placed on another piece metal sheet, then fastening that composite plate is alignd with metal sheet welds together; Perhaps first centre there are two metal sheet alignment fastenings of dividing plate and central layer to weld together, then by welding or bonding mode, panel and metal sheet are joined together to form to composite plate; Place solder in extract opening, composite plate is sent in vacuum drying oven, once can send into several piece;
The 3rd step, first vacuum drying oven is warming up to the temperature of bleeding, again vacuum drying oven is evacuated to below 0.1Pa, then vacuum drying oven is warming up to the temperature of sealing, the solder fusing is by the extract opening self-closed, solidify and rear vacuum chamber is realized to the tightness welding with stove cooling, solder, open vacuum drying oven and obtain two vacuum layer composite vacuum insulating plates.
Wherein, described pair of vacuum layer composite vacuum insulating plate comprises the various forms of sheet materials such as surface plate, curved slab, bending plate, sketch plate.
Wherein, described pair of vacuum layer composite vacuum insulating plate is useful on connector or groove or the hole etc. that use is installed.
Wherein, the surrounding of the described pair of vacuum layer composite vacuum insulating plate or vacuum chamber scribbles fluid sealant or structure glue.
Wherein, described panel is metal sheet, ceramic wafer, glass plate, plastic plate or composite plate etc., and decoration, overcoat can be arranged above it and on the soffit of vacuum chamber, as coating, electrodeposited coating, fluorine carbon paint etc.;
Further, the preferred ultra thin plate of described panel, with weight reduction and cost;
Further, described panel can be commaterial, can be also two kinds of different materials.
Wherein, the surface of described central layer can be coated with low-radiation film, as aluminium film etc.
Wherein, described panel can connect as one with vacuum chamber before vacuumizing or in vacuum or after vacuumizing.
Wherein, described bonding employing bonding adhesive, described bonding adhesive comprises organic gel, inorganic glue and composite adhesive, is commercially available prod; Described organic gel comprises thermosetting cement, PUR etc., and preferred resistant to elevated temperatures bonding adhesive, as phenolic resins, epoxy resin, organic siliconresin etc.
Wherein, described central layer can be one to several layers;
Further, in described central layer or between described central layer, enhancement Layer or stiffener can be arranged, as fiber, reinforcing rib, reinforcing mat, stiffener etc.
Wherein, described vacuum chamber is that described metal sheet is ultra thin plate by one or two air-tight cavities that metal sheet is welded, and thickness is 0.1-1mm, preferably 0.15-0.5mm.
Wherein, described vacuum chamber can be one to several, and when described vacuum chamber is two, upper and lower two vacuum chambers stack bonding along the diagonal dislocation of lower upper surface, make it form overlap edge, the limit section heat bridge impact while installing to reduce described composite evacuated plate.
Wherein, the material that the metal sheet of described vacuum chamber is low radiation, as adopted mirror board, or its surface through processing make its there is extremely low emissivity, as aluminizer etc.
Wherein, the inwall of described vacuum chamber can have coating heat insulation, sound insulation; In described vacuum chamber, getter can be arranged, getter is automatic activation under high temperature, high vacuum.
Wherein, described dividing plate is metal sheet, glass plate, ceramic wafer or resistant to elevated temperatures high polymer plate.
Wherein, described dividing plate can be integrally welded with the inwall of vacuum chamber, makes vacuum chamber form two independently vacuum layer; Described dividing plate also can be placed directly in vacuum chamber, makes vacuum chamber form the vacuum layer of two UNICOMs.
Wherein, described dividing plate is that mirror board or its surface are coated with low-radiation film.
Wherein, described welding comprises melting welding, pressure welding, soldering etc., as argon arc welding, laser weld, ultrasonic bonding, low-melting-point metal and alloy welding and other welding manners for metal sheet especially ultra-thin metal plates.
Wherein, described extract opening can be arranged on surface or the side of vacuum chamber.
Wherein, described extract opening can directly be made in the vacuum chamber punching press, also can first make extract opening and be welded on vacuum chamber.
Wherein, described extract opening has one or two, and described vacuum layer can share an extract opening or each vacuum layer respectively has an extract opening.
Wherein, described vacuum drying oven or the single-unit furnace of batch production, or the tunnel kiln of continous way production; The vacuum of described vacuum drying oven is 0.1-0.001Pa, is preferably 0.05-0.005Pa; The temperature of described vacuum drying oven is 150-450 ℃, is preferably 280-350 ℃.
Wherein, above support can be the supporter of making separately, can be also on the metal sheet of making vacuum chamber or on central layer or the projection directly formed on dividing plate, as point, line etc.;
Further, when above support is made separately, be point, line or the net etc. that adopt the materials such as metal, glass, pottery, high polymer to make.
Wherein, above support has one to several layers.
Wherein, above support can directly be produced on described dividing plate, also can form one by punching press, roll extrusion and welding, the mode such as bonding with the inwall of described vacuum chamber or central layer.
The invention has the beneficial effects as follows:
Of the present invention pair of its vacuum chamber of vacuum layer composite vacuum insulating plate is protection and the support that panel and central layer were made and had to metal sheet, so there is fabulous tightness, puncture-resistant intensity and low emissivity, thereby not only heat-proof quality is good but also have extremely long application life; The thickness of composite plate can be very little, and minimum only has several millimeters, and, the space that take less than the thickness of existing vacuum heat-insulating plate still less; The of the present invention pair of vacuum layer composite vacuum insulating plate formed by the Material cladding of several difformities and material, the resonance effects while having prevented sound transmission, and the existence of vacuum layer in addition, so have good sound insulation value; Of the present invention pair of vacuum layer composite vacuum insulating plate mainly is comprised of metal material, and panel can be selected inorganic material or fire proofing, so have good fireproof performance; Of the present invention pair of its panel of vacuum layer composite vacuum insulating plate can be selected multiple decorative panel, so have good decorative effect, do not need to do decorative layer after installation again, not only saves material and also saves manpower and time; Of the present invention pair of vacuum layer composite vacuum insulating plate is composited by multiple material, thus thin thickness, lightweight not only, and there is very high mechanical strength; Of the present invention pair of its vacuum chamber of vacuum layer composite vacuum insulating plate is divided into two and forms two vacuum layer by dividing plate, and the cost of increase and operation seldom, but can effectively improve heat insulation, sound insulation and the mechanical performance of composite evacuated plate; Of the present invention pair of vacuum layer composite vacuum insulating plate adopts normal temperature and pressure lower sealing edge, high-temperature vacuum lower sealing, its manufacture craft is simple, cost of production is low, can mechanization, automation, production in enormous quantities, product can be widely used in interior wall, exterior wall and curtain wall, can greatly reduce the consumption of material and the energy, the weight that alleviates building, shortening building cycle; Of the present invention pair of vacuum layer composite vacuum insulating plate not only can be applied to new building, and the energy-conservation and outward appearance that can be applied to existing building is transformed, not only can wet combining but also can be cladding, compare with existing heat insulating material and can greatly save the engineering time, improve heat insulation and soundproof effect; Of the present invention pair of vacuum layer composite vacuum insulating plate can also be made sketch plate, is directly used in the production of refrigerator, refrigerator-freezer, refrigerator carriage, incubator, cold store, frozen products insulated container etc.; Can also be for high-temperature field, as outer insulation of various bodies of heater etc.
The accompanying drawing explanation
Fig. 1 is of the present invention pair of vacuum layer composite vacuum insulating plate structural representation.
In figure: 1. panel, 2. central layer, 3. vacuum chamber, 4. supporter, 5. dividing plate, 6. extract opening, 7. solder.
The specific embodiment
Referring to accompanying drawing, two vacuum layer composite vacuum insulating plates are by panel 1, central layer 2, vacuum chamber 3, supporter 4 and dividing plate 5 form, panel 1 is metal sheet, ceramic wafer, glass plate, plastic plate or composite plate, the preferred thick armorplate glass of 3-5mm, ceramic wafer, stone plate, artificial stone plate or Aluminiumplastic composite panel etc., and by high temperature adhesive, stick on the soffit of vacuum chamber 3, high temperature adhesive can be selected the resistant to elevated temperatures phenolic resin glue of normal temperature or hot setting, epoxide-resin glue, the organic adhesion agents such as organic siliconresin glue and polyimides and inorganic adhesive commonly used or organic-inorganic compound adhesive stick etc., central layer 2 is metal sheet, ceramic wafer, glass plate, plastic plate or composite plate, the aluminium alloy plate that armorplate glass, the 1-2mm that preferably 3-4mm is thick is thick or fiber composite plate etc., the corrosion resistant plate that vacuum chamber 3 is 0.15-1.0mm by thickness, stainless iron plate, electrolytic tinplate or galvanized sheet etc. are welded, dividing plate 5 can adopt same sheet material, with vacuum chamber 3, directly welds together, and makes vacuum chamber 3 form two independently vacuum layer, and dividing plate 5 also can adopt glass plate, plastic plate etc., is placed directly in vacuum chamber 3, makes vacuum chamber 3 form the vacuum layer of two UNICOMs, supporter 4 is made by metal, pottery, glass or high polymer, utilize the modes such as printing, printing, spraying, machinery lay to become dot matrix to be distributed on two surfaces up and down of dividing plate 5, the bearing height of supporter 4 is advisable with 0.15-1.0mm, and the diameter of the strong point is advisable with 0.3-1.0mm, air exhaust nozzle and crown cap that extract opening 6 is directly stamped out by a metal sheet of vacuum chamber 3 form, and solder 7 is placed as tin, zinc, magnesium and low-melting alloy thereof by the air exhaust nozzle place, and solder 7 dissolves and automatically extract opening 6 sealed afterwards.The preparation method of two vacuum layer composite vacuum insulating plates is as follows: at first two onesize corrosion resistant plates of cutting are for making vacuum chamber 3, and utilize the mode of punching press to carry out the flanging moulding and make extract opening 6 two corrosion resistant plates, slightly a little bit smaller electrolytic tinplate of cutting is as dividing plate 5, and reserved bleed-off passage again, take the performed polymer of high polymer by the mode of printing and supporter 4 is printed on two surfaces up and down of dividing plate 5 as raw material; Next cuts a glass plate as central layer 2, and is treated as tempered glass through tempering; Dividing plate 5 and central layer 2 are placed between two corrosion resistant plates successively, and two corrosion resistant plates utilize seam welder that its limit section is welded together after closing sheet, carry out edge sealing; Again get a granite ultra-thin plate as panel 1, choose epoxide-resin glue as bonding adhesive, panel 1 is sticked on the soffit of vacuum chamber 3 and form composite plate; Finally at extract opening 6 places, place solder 7, one or composite plate are in batch sent in vacuum drying oven, first heating makes the epoxy resin adhesive curing, be evacuated to again below 0.1Pa, temperature while vacuumizing is preferably in more than 300 ℃, to promote the eliminating of vacuum chamber 3 interior gases, after vacuum reaches, be warming up to again sealing temperature, solder 7 fusings are by extract opening 6 self-closeds, with the stove cooling, solder 7 solidifies final vacuum chamber 3 realizes airtight sealing, opens vacuum drying oven and obtains two vacuum layer composite vacuum insulating plates; In order to protect the impact of vacuum chamber 3 and elimination heat bridge, the surrounding of vacuum chamber 3 can be smeared fluid sealant or structure glue; In order to protect vacuum chamber 3 and to play decoration function, the upper surface of fluid sealant, vacuum chamber 3 is smeared at extract opening 5 places can brushing fluorine carbon paint.
All above-mentioned these intellectual properties of primary enforcement, do not set restriction this new product of other forms of enforcement and/or new method.Those skilled in the art will utilize this important information, and foregoing is revised, to realize similar implementation status.But all modifications or transformation belong to the right of reservation based on new product of the present invention.But every technical solution of the present invention content that do not break away from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. a two vacuum layer composite vacuum insulating plate, comprise panel, central layer and vacuum chamber, it is characterized in that described panel is fixed on the outer upper surface of described vacuum chamber by welding or bonding mode, described central layer is placed on the bottom in described vacuum chamber, described panel and or described central layer provide additional strength for described vacuum chamber, guarantee vacuum chamber planarization under atmospheric pressure, described vacuum chamber is to weld edge sealing by metal sheet under normal pressure, under vacuum, high temperature seals and the closed cavity of formation, described sealing is in vacuum drying oven, to utilize solder according to hydraulic seal principle automatic-sealed pre-extract opening on vacuum chamber, described solder comprises low-temperature metal and solder, one dividing plate is arranged in described vacuum chamber, described dividing plate forms two vacuum layer by being divided into two in described vacuum chamber, in described vacuum layer, supporter is arranged, above support be make separately or on vacuum chamber or dividing plate or central layer, directly form.
2. as claimed in claim 1 pair of vacuum layer composite vacuum insulating plate, is characterized in that described pair of vacuum layer composite vacuum insulating plate comprises surface plate, curved slab, bending plate and sketch plate.
3. as claimed in claim 1 pair of vacuum layer composite vacuum insulating plate, is characterized in that described panel or described central layer are metal sheet, ceramic wafer, glass plate, plastic plate or composite plate.
4. as claimed in claim 1 pair of vacuum layer composite vacuum insulating plate, is characterized in that the surface of described central layer can be coated with low-radiation film.
5. as claimed in claim 1 pair of vacuum layer composite vacuum insulating plate, it is characterized in that described vacuum chamber has one to several, when described vacuum chamber is two, upper and lower two vacuum chambers stack bonding along the diagonal dislocation of lower upper surface, make it form overlap edge, the limit section heat bridge impact while installing to reduce.
6. as claimed in claim 1 pair of vacuum layer composite vacuum insulating plate, is characterized in that described dividing plate is metal sheet, glass plate, ceramic wafer or resistant to elevated temperatures high polymer plate.
7. as claimed in claim 1 pair of vacuum layer composite vacuum insulating plate, is characterized in that described dividing plate can be integrally welded with the inwall of vacuum chamber, makes vacuum chamber form two independently vacuum layer; Described dividing plate also can be placed directly in vacuum chamber, makes vacuum chamber form the vacuum layer of two UNICOMs.
8. as claimed in claim 1 pair of vacuum layer composite vacuum insulating plate, is characterized in that described welding comprises melting welding, pressure welding and soldering.
9. as claimed in claim 1 pair of vacuum layer composite vacuum insulating plate, is characterized in that described vacuum chamber, for low radial chamber, has getter in described vacuum chamber.
10. the preparation method of described pair of vacuum layer composite vacuum insulating plate of claim 1 to 9 any one is characterized in that comprising the following steps:
The first step, make respectively a panel, a central layer, a dividing plate and two metal sheets that are used to form vacuum chamber according to shape and the size of two vacuum layer composite vacuum insulating plates of required making, two metal sheets that are used to form vacuum chamber are carried out to the flanging moulding and make supporter or bleed-off passage and extract opening on a metal sheet or on central layer or on dividing plate;
Second step, first be joined together to form composite plate, dividing plate and central layer by welding or bonding mode with a metal sheet by panel and be placed on another piece metal sheet, then fastening that composite plate is alignd with metal sheet welds together; Perhaps first centre there are two metal sheet alignment fastenings of dividing plate and central layer to weld together, then by welding or bonding mode, panel and metal sheet are joined together to form to composite plate; The extract opening place places solder, composite plate is sent in vacuum drying oven, once can send into several piece;
The 3rd step, first vacuum drying oven is warming up to the temperature of bleeding, again vacuum drying oven is evacuated to below 0.1Pa, then vacuum drying oven is warming up to the temperature of sealing, the solder fusing is by the extract opening self-closed, solidify and rear vacuum chamber is realized to the tightness welding with stove cooling, solder, open vacuum drying oven and obtain two vacuum layer composite vacuum insulating plates.
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| CN2013102986523A CN103422636A (en) | 2013-07-17 | 2013-07-17 | Double-vacuum-layer composite vacuum insulation plate and preparation method thereof |
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| CN2013102986523A CN103422636A (en) | 2013-07-17 | 2013-07-17 | Double-vacuum-layer composite vacuum insulation plate and preparation method thereof |
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|---|---|---|---|---|
| CN201024620Y (en) * | 2007-03-30 | 2008-02-20 | 兆宁 | Composite vacuum exterior wall thermal insulation decorative board |
| CN201066022Y (en) * | 2007-06-06 | 2008-05-28 | 兆宁 | Metal vacuum heat-insulation plate |
| CN102345341A (en) * | 2010-07-30 | 2012-02-08 | 叶倩儿 | Multifunctional plate and manufacturing method thereof |
| CN202595934U (en) * | 2012-06-07 | 2012-12-12 | 张寅啸 | Hollow vacuum heat-insulating plate |
| CN102953509A (en) * | 2012-03-21 | 2013-03-06 | 戴长虹 | Vacuum ceramic thermal baffle welded by metal solders and manufacturing method of thermal baffle |
| CN102953441A (en) * | 2012-03-21 | 2013-03-06 | 戴长虹 | Convex-sided vacuum heat-insulating board, flattened vacuum heat-insulating board and preparation methods thereof |
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2013
- 2013-07-17 CN CN2013102986523A patent/CN103422636A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201024620Y (en) * | 2007-03-30 | 2008-02-20 | 兆宁 | Composite vacuum exterior wall thermal insulation decorative board |
| CN201066022Y (en) * | 2007-06-06 | 2008-05-28 | 兆宁 | Metal vacuum heat-insulation plate |
| CN102345341A (en) * | 2010-07-30 | 2012-02-08 | 叶倩儿 | Multifunctional plate and manufacturing method thereof |
| CN102953509A (en) * | 2012-03-21 | 2013-03-06 | 戴长虹 | Vacuum ceramic thermal baffle welded by metal solders and manufacturing method of thermal baffle |
| CN102953441A (en) * | 2012-03-21 | 2013-03-06 | 戴长虹 | Convex-sided vacuum heat-insulating board, flattened vacuum heat-insulating board and preparation methods thereof |
| CN202595934U (en) * | 2012-06-07 | 2012-12-12 | 张寅啸 | Hollow vacuum heat-insulating plate |
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Application publication date: 20131204 |