CN104746696A - Metal vacuum composite heat-insulation plate with edge sealed by seal strip and manufacturing method thereof - Google Patents
Metal vacuum composite heat-insulation plate with edge sealed by seal strip and manufacturing method thereof Download PDFInfo
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- CN104746696A CN104746696A CN201310721297.6A CN201310721297A CN104746696A CN 104746696 A CN104746696 A CN 104746696A CN 201310721297 A CN201310721297 A CN 201310721297A CN 104746696 A CN104746696 A CN 104746696A
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Abstract
A metal vacuum composite heat-insulation plate with edge sealed by a seal strip comprises a housing, at least two core plates and a vacuum cavity and is characterized in that the housing is a low-carbon steel plate, the core plates are located in the vacuum cavity and provides additional strength for the housing, the vacuum cavity is a closed cavity formed by welding the housing and sealing the edge by utilizing a glass solder under the constant pressure and high temperature and performing high-temperature sealing under the vacuum condition, the seal strip is arranged at the welding position of the edge portion of the low-carbon steel plate, and the low-carbon steel plate is matched with the coefficient of thermal expansion of the glass solder. The sealing is automatic sealing performed by utilizing an air exhaust opening pre-formed in the housing and a low-temperature solder in a vacuum furnace according to a liquid seal principle, the low-temperature solder includes low-temperature metal and an alloy solder, and a support is arranged between the core plates. A manufacturing method of the metal vacuum composite heat-insulation plate is simple in process, the manufactured metal vacuum composite heat-insulation plate can overcome the shortcomings of existing heat preservation plates and vacuum heat-insulation plates, and strength, heat-insulation, sound-insulation and fireproof performance and a decorative function can be improved.
Description
Technical field
The present invention relates to energy-saving building technology field, particularly relate to metal vacuum Combined thermal insulative panel of a kind of weather strip edge sealing and preparation method thereof.
Background technology
Current building exterior wall heat preserving material used is divided into A level heat insulating material and B level heat insulating material, and the fireproof performance of A level heat insulating material is good, but its heat-insulating property, water resistance etc. are all lower than B level heat insulating material, and there is the problems such as price is high, complicated construction technique; B level heat insulating material has the advantages such as cost is low, good heat insulating, construction technology are ripe, but its durability is bad, heat resistance is poor, easy firing, a large amount of poison gas is not only discharged during burning, and spreading of big fire can be accelerated, so prohibit the use organic insulation material for exterior-wall heat insulation in highrise building and public building.Vacuum heat-insulating plate was applied to building heat preservation field in recent years, its major advantage be belong to A level heat insulating material, good heat insulating, thickness is thin, unit mass is light, but also have that obvious shortcoming is as low in vacuum bag poor air-tightness, puncture-resistant intensity, edge exists cold bridge, soon, easily rise bag, insulation life-span of vacuum decay is short etc.Therefore, building heat preservation needs the new A level heat insulating material researching and developing good heat insulating, long service life.
Applicant discloses a series of evacuated panel and preparation method thereof in July, 2013, although solve the contradiction and problems of the aspect such as fire prevention, insulation, application life that existing heat insulating material exists, but owing to directly metal sheet being welded together, so its edge exists obvious cold bridge, its heat-insulating property is made not reach optimum state.
Summary of the invention
technical problem to be solved by this invention is for existing building insulating board, warming plate, the defect that vacuum heat-insulating plate exists, metal vacuum Combined thermal insulative panel of a kind of novel weather strip edge sealing and preparation method thereof is provided, the preparation method technique of the metal vacuum Combined thermal insulative panel of this weather strip edge sealing is simple, prepared metal vacuum Combined thermal insulative panel can overcome existing insulating board, the deficiency of vacuum heat-insulating plate and warming plate, effectively can ensure the tightness of metal vacuum Combined thermal insulative panel, increase the service life, and its intensity and heat insulation can be increased, 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 metal vacuum Combined thermal insulative panel of weather strip edge sealing, comprise shell, central layer and vacuum chamber, it is characterized in that described shell is low carbon steel plate or mild steel composite plate, described central layer is positioned at vacuum chamber for described shell provides additional strength, ensure shell planarization under atmospheric pressure, described vacuum chamber welds edge sealing by shell at constant-pressure and high-temperature lower-glass, high temperature seals and the closed cavity of formation under vacuo, the edge weld of described low carbon steel plate has weather strip, the coefficient of thermal expansion of described low carbon steel plate and described glass solder matches, described sealing utilizes solder according to hydraulic seal principle automatic-sealed in a vacuum furnace prefabricated extract opening on shell, described solder comprises low-temperature metal and solder, described central layer has two pieces at least, has supporter between described central layer, and above support makes separately or the projection formed on central layer.
In order to solve the problems of the technologies described above, the invention provides a kind of preparation method of metal vacuum Combined thermal insulative panel of weather strip edge sealing, it is characterized in that comprising the following steps:
The first step, two pieces of Shell Plates and two pieces of central layers are made respectively according to the shape of the metal vacuum Combined thermal insulative panel of the weather strip edge sealing of required making and size, two pieces of Shell Plates are carried out flanging shaping, edge weld make weather strip, and extract opening is made on one piece of Shell Plate, at least one piece of central layer makes supporter and bleed-off passage;
Second step, first at the weld coated glass solder of the lower steel plate of two pieces of low carbon steel plates, and leaves bleed-off passage, and two pieces of central layers stack the shell neatly putting into two pieces of low carbon steel plate compositions and form composite plate; Then composite plate is sent in edge sealing heating furnace, by the heat fused of glass solder, cooling solidification, the edge of shell is hermetic welded together, complete edge sealing; Finally send in vacuum drying oven after solder is placed at extract opening place, once can send into several piece;
3rd step, first vacuum drying oven is warming up to the temperature being conducive to being vented, again vacuum drying oven is evacuated to below 0.1Pa, then vacuum drying oven is warming up to the temperature of sealing, solder fusing is by extract opening self-closed, with stove cooling, solder solidify rear to vacuum chamber realize tightness welding, open the metal vacuum Combined thermal insulative panel that vacuum drying oven obtains weather strip edge sealing.
Wherein, the metal vacuum Combined thermal insulative panel of described weather strip edge sealing comprises the various forms of sheet materials such as surface plate, curved slab, bending plate, sketch plate.
Wherein, the metal vacuum Combined thermal insulative panel of described weather strip edge sealing has connector for installing or groove or hole etc.
Wherein, described shell is low carbon steel plate or mild steel composite plate, can have decoration, overcoat above it, as coating, electrodeposited coating, F-C paint etc.;
Further, the preferred ultra thin plate of described shell, with weight reduction and cost;
Further, described shell can be commaterial, also can be two kinds of different materials.
Wherein, described central layer is metal sheet, glass plate, ceramic wafer, plastic plate or composite plate, preferred armorplate glass or aluminium alloy plate.
Wherein, the surface of described central layer can be coated with low-radiation film, as aluminium film etc.
Wherein, described vacuum chamber is the air-tight cavity be welded by a piece or two pieces of low carbon steel plates, and the C content of described low carbon steel plate is not more than 0.06%, preferred enamel low carbon steel plate, and thickness is 0.3-3mm, preferred 0.3-1mm.
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, to reduce edge cold bridge impact when described composite evacuated plate is installed.
Wherein, the low carbon steel plate of described vacuum chamber can adopt mirror board, if its surface is senior finish, or its inner surface makes it have extremely low emissivity, as aluminizer etc. through process.
Wherein, the inwall of described vacuum chamber can have coating that is heat insulation, sound insulation; Can have getter in described vacuum chamber, getter is automatic activation under high temperature, high vacuum.
Wherein, the edge weld of described low carbon steel plate has weather strip, and described weather strip is made up of glass or metal etc.;
Further, when described weather strip is made up of glass, preferably cryogenic glass powder is produced on described low carbon steel plate by modes such as printing, printing, sprayings and forms through high temperature sintering, can carry out separately sintering, also can sintering together with glass solder; The fusion temperature of described cryogenic glass powder is higher than the welding temperature of described glass solder;
Further, can be the metal sheet, the bar that are welded on separately on described low carbon steel plate when described weather strip is metal, also can be described low carbon steel plate flanging; Can only be connected with one piece of low carbon steel plate when described weather strip is metal sheet, bar, cold bridge can not be formed in described vacuum chamber;
Further, described weather strip forms an airtight bar frame at the weld of described low carbon steel plate, described weather strip has two airtight bar frames at least at the edge weld of lower low carbon steel plate of the described vacuum chamber of composition, described glass solder is positioned in the region that described two airtight bar frames surround, described weather strip has an airtight bar frame at least at the edge weld of upper low carbon steel plate of the described vacuum chamber of composition, and the weather strip of described upper low carbon steel plate can insert between two weather strips of described lower low carbon steel plate.
Wherein, described glass solder refers to and utilizes glass solder at high temperature to be welded together by two pieces of low carbon steel plates, commercially available low temperature glass solder selected by described glass solder, and its welding temperature is generally 380-480 DEG C, selects low temperature glass solder to be conducive to reducing costs, improving production capacity etc.; Described glass solder, certain pressure can be applied, namely pressure welding is carried out, with make welding and combine more solid and reliable, vacuum chamber and plate face more smooth, and can eliminate because solder thickness is uneven, vacuum chamber surface irregularity can not get supporter and evenly effectively supports and the edge sealing stress that causes; Described pressure is approximately 0.1MPa, described in the mode of exerting pressure can adopt mechanical compression, air pressure or hydraulic pressure etc.
Wherein, described extract opening can be arranged on surface or the side of vacuum chamber.
Wherein, described extract opening can directly be made in vacuum chamber punching press, also first can make extract opening and be welded on vacuum chamber again.
Wherein, described edge sealing heating furnace or vacuum drying oven are the single-unit furnaces of batch production, or the tunnel kiln that continous way is produced; The edge sealing temperature of described edge sealing heating furnace is 360-500 DEG C, is preferably 380-480 DEG C; The vacuum of described vacuum drying oven is 0.001-0.1Pa, is preferably 0.005-0.05Pa; The sealing temperature of described vacuum drying oven is 150-450 DEG C, is preferably 280-350 DEG C.
Wherein, above support can be the supporter made separately, also can be on central layer as by mechanical means punching press the projection that formed, as point, line etc.;
Further, when above support makes 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.
The invention has the beneficial effects as follows:
The present invention adds weather strip at the weld of glass solder, weather strip not only can limit the rear random flowing of glass solder fusing, make edge sealing neatly good-looking, prevent the solder skip phenomenon caused because glass solder runs off, the qualification rate improving product, and the plane-welding of glass solder can be become three-dimensional welding, make welding more firmly, reliably, the tightness of vacuum chamber is fine, the longer service life of evacuated panel; The present invention replaces metal () to weld with glass solder, coefficient of thermal conductivity due to glass only has 1% of metal even less so can solve the edge cold bridge problem of evacuated panel well, because glass is different with the material of metal so the evacuated panel of glass solder has better sound insulation value; The low carbon steel plate matched with coefficient of thermal expansion and glass solder replaces conventional metal sheet, solves the Welding Problems between glass and metal; An about atmospheric pressure is applied when glass solder, glass solder is made to solidify the sizing of final vacuum chamber in using state, eliminate edge sealing stress, avoid the evacuated panel in use damage that causes because of unbalance stress of brittle glass solder, thus ensure that heat-proof quality and the application life of evacuated panel; The metal vacuum Combined thermal insulative panel of weather strip edge sealing of the present invention forms primarily of metal material, and central layer can select inorganic material or fire proofing, so have good fireproof performance; Its shell of metal vacuum Combined thermal insulative panel of weather strip edge sealing of the present invention can select multiple decoration low carbon steel plate, so have good decorative effect, does not need to do decorative layer again after installation, not only saves material and also saves manpower and time; The metal vacuum Combined thermal insulative panel of weather strip edge sealing of the present invention is composited by multiple material, so not only thickness is thin, lightweight, and has very high mechanical strength; The metal vacuum Combined thermal insulative panel of weather strip edge sealing of the present invention 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, the consumption that can greatly reduce material and the energy, the weight alleviating building, shortening building cycle; The metal vacuum Combined thermal insulative panel of weather strip edge sealing of the present invention not only can be applied to new building, and the energy-conservation of existing building and outward appearance transformation can be applied to, not only can wet combining but also can be cladding, can greatly save the engineering time compared with existing heat insulating material, improve heat insulation and soundproof effect; The metal vacuum Combined thermal insulative panel of weather strip edge sealing of the present invention can also make sketch plate, is directly used in the production of refrigerator, refrigerator-freezer, refrigerator carriage, incubator, cold store, frozen products insulated container etc.; High-temperature field can also be used for, as the Surgery therapy etc. of various body of heater.
Accompanying drawing explanation
Fig. 1 is the metal vacuum compound heat insulating plate structure schematic diagram of weather strip edge sealing of the present invention.
In figure: 1. shell, 2. central layer, 3. vacuum chamber, 4. supporter, 5. extract opening, 6. solder, 7. glass solder, 8. weather strip.
Detailed description of the invention
Below adopt embodiment and accompanying drawing to describe embodiments of the present invention in detail, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.
See accompanying drawing, the metal vacuum Combined thermal insulative panel of weather strip edge sealing is made up of shell 1, central layer 2, vacuum chamber 3 and supporter 4, and the thin low carbon steel plate that shell 1 is 0.3-1.0mm by thickness is formed; Central layer 2 is metal sheet, ceramic wafer, glass plate, plastic plate or composite plate etc., the aluminium alloy plate that preferred 1-2mm is thick or the thick armorplate glass etc. of 3-5mm; Supporter 4 is made up of metal, pottery, glass or high polymer, and modes such as utilizing printing, print, spray, machinery lays becomes dot matrix to be distributed between central layer 2, and 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; The air exhaust nozzle that extract opening 5 is directly stamped out by the upper low carbon steel plate of shell 1 and can form, and place solder 6 in can as tin, zinc, magnesium and low-melting alloy thereof, and solder 6 dissolves and automatically to seal extract opening 5 afterwards.The preparation method of the metal vacuum Combined thermal insulative panel of weather strip edge sealing is as follows: the low carbon steel plate that first cutting two pieces is onesize is for making shell 1, and it is shaping and make extract opening 5 to utilize the mode of punching press to carry out flanging to two pieces of low carbon steel plates, be that raw material is printed on the edge weld of low carbon steel plate weather strip 8 by the mode of printing or spray with cryogenic glass powder; Secondly cutting two pieces of glass plates as central layer 2 and wherein one block of glass drill through bleed-off passage, are printed by glass ink and form supporter 4 on a glass, after tempering process; Again by the weld coated glass solder 7 of the lower low carbon steel plate in two pieces of low carbon steel plates, the shell 1 putting into two pieces of low carbon steel plate compositions after two pieces of central layer 2 mounted on top are neat forms composite plate, then composite plate is sent in edge sealing heating furnace, the edge sealing temperature of edge sealing heating furnace is 400-450 DEG C, by the heat fused of glass solder 7, cooling solidification, the edge of two pieces of low carbon steel plates is hermetic welded together, complete edge sealing; Finally in extract opening 5, place solder 6, one piece or composite plate are in batch sent in vacuum drying oven, first heats, then be evacuated to below 0.1Pa, temperature when vacuumizing is preferably more than 300 DEG C, to promote the eliminating of gas in vacuum chamber 3, after vacuum reaches, then be warming up to sealing temperature, solder 6 melts extract opening 5 self-closed, with stove cooling, solder 6 solidifies final vacuum chamber 3 and realizes airtight sealing, opens the metal vacuum Combined thermal insulative panel that vacuum drying oven obtains weather strip edge sealing; In order to protecting sheathing 1 with play decoration function, fluid sealant is smeared at extract opening 5 place, the surface of shell 1 can brushing F-C paint.
All above-mentioned this intellectual properties of primary enforcement, not setting 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.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. the metal vacuum Combined thermal insulative panel of a weather strip edge sealing, comprise shell, central layer and vacuum chamber, it is characterized in that described shell is low carbon steel plate or mild steel composite plate, described central layer is positioned at vacuum chamber for described shell to be provided additional strength, ensures shell planarization under atmospheric pressure, described vacuum chamber is the closed cavity welding edge sealing, under vacuo high temperature sealing by shell at constant-pressure and high-temperature lower-glass and formed, the edge weld of described low carbon steel plate has weather strip, and the coefficient of thermal expansion of described low carbon steel plate and described glass solder matches; Described sealing utilizes solder according to hydraulic seal principle automatic-sealed in a vacuum furnace prefabricated extract opening on shell, described solder comprises low-temperature metal and solder, described central layer has two pieces at least, has supporter between described central layer, and above support makes separately or the projection formed on central layer.
2. the metal vacuum Combined thermal insulative panel of weather strip edge sealing as claimed in claim 1, is characterized in that the metal vacuum Combined thermal insulative panel of described weather strip edge sealing comprises surface plate, curved slab, bending plate and sketch plate.
3. the metal vacuum Combined thermal insulative panel of weather strip edge sealing as claimed in claim 1, is characterized in that described central layer is metal sheet, ceramic wafer, glass plate, plastic plate or composite plate.
4. the metal vacuum Combined thermal insulative panel of weather strip edge sealing as claimed in claim 1, is characterized in that described central layer can have low-radiation film.
5. the metal vacuum Combined thermal insulative panel of weather strip edge sealing as claimed in claim 1, 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, it is made to form overlap edge, to reduce edge cold bridge impact during installation.
6. the metal vacuum Combined thermal insulative panel of weather strip edge sealing as claimed in claim 1, is characterized in that the inwall of described vacuum chamber can have coating that is heat insulation, sound insulation.
7. the metal vacuum Combined thermal insulative panel of weather strip edge sealing as claimed in claim 1, is characterized in that described glass solder is pressure welding.
8. the metal vacuum Combined thermal insulative panel of weather strip edge sealing as claimed in claim 1, is characterized in that above support has one to several layers.
9. the metal vacuum Combined thermal insulative panel of weather strip edge sealing as claimed in claim 1, is characterized in that there is getter in described vacuum chamber.
10. the preparation method of the metal vacuum Combined thermal insulative panel of the weather strip edge sealing described in any one of claim 1 to 9, is characterized in that comprising the following steps:
The first step, two pieces of Shell Plates and two pieces of central layers are made respectively according to the shape of the metal vacuum Combined thermal insulative panel of the weather strip edge sealing of required making and size, two pieces of Shell Plates are carried out flanging shaping, edge weld make weather strip, and extract opening is made on one piece of Shell Plate, at least one piece of central layer makes supporter and bleed-off passage;
Second step, first at the weld coated glass solder of the lower steel plate of two pieces of low carbon steel plates, and leaves bleed-off passage, and two pieces of central layers stack the shell neatly putting into two pieces of low carbon steel plate compositions and form composite plate; Then composite plate is sent in edge sealing heating furnace, by the heat fused of glass solder, cooling solidification, the edge of shell is hermetic welded together, complete edge sealing; Finally send in vacuum drying oven after solder is placed at extract opening place, once can send into several piece;
3rd step, first vacuum drying oven is warming up to the temperature being conducive to being vented, again vacuum drying oven is evacuated to below 0.1Pa, then vacuum drying oven is warming up to the temperature of sealing, solder fusing is by extract opening self-closed, with stove cooling, solder solidify rear to vacuum chamber realize tightness welding, open the metal vacuum Combined thermal insulative panel that vacuum drying oven obtains weather strip edge sealing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310721297.6A CN104746696A (en) | 2013-12-25 | 2013-12-25 | Metal vacuum composite heat-insulation plate with edge sealed by seal strip and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310721297.6A CN104746696A (en) | 2013-12-25 | 2013-12-25 | Metal vacuum composite heat-insulation plate with edge sealed by seal strip and manufacturing method thereof |
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| CN104746696A true CN104746696A (en) | 2015-07-01 |
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| CN201310721297.6A Pending CN104746696A (en) | 2013-12-25 | 2013-12-25 | Metal vacuum composite heat-insulation plate with edge sealed by seal strip and manufacturing method thereof |
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| CN (1) | CN104746696A (en) |
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- 2013-12-25 CN CN201310721297.6A patent/CN104746696A/en active Pending
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Application publication date: 20150701 |
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