CN104746760A - Metal vacuum heat-insulation plate with edge sealed by seal strip and manufacturing method thereof - Google Patents
Metal vacuum heat-insulation plate with edge sealed by seal strip and manufacturing method thereof Download PDFInfo
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- CN104746760A CN104746760A CN201310723157.2A CN201310723157A CN104746760A CN 104746760 A CN104746760 A CN 104746760A CN 201310723157 A CN201310723157 A CN 201310723157A CN 104746760 A CN104746760 A CN 104746760A
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Abstract
A metal vacuum heat-insulation plate with edge sealed by a seal strip comprises a housing, a core material and a vacuum cavity and is characterized in that the housing is a low-carbon steel plate or a low-carbon steel composite plate, the core material is located in the vacuum cavity formed through sealing and welding of the housing, the core material provides additional strength for the housing and ensures the smoothness of the housing under atmospheric pressure, the vacuum cavity is welded and sealed by utilizing a glass solder in a vacuum furnace under high vacuum and high temperature, 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. A manufacturing method of the metal vacuum heat-insulation plate with the edge sealed by the seal strip 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, the air impermeability of the vacuum cavity of the metal vacuum heat-insulation plate can be effectively ensured, the service life of the metal vacuum heat-insulation plate can be prolonged, and strength, heat-insulation, sound-insulation and fireproof performance and a decorative function can be improved.
Description
Technical field
The present invention relates to vacuum heat-insulating plate, particularly relate to metal vacuum thermal insulation slab 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 thermal insulation slab of a kind of novel weather strip edge sealing and preparation method thereof is provided, the preparation method technique of the metal vacuum thermal insulation slab of this weather strip edge sealing is simple, prepared metal vacuum thermal insulation slab can overcome existing insulating board, the deficiency of vacuum heat-insulating plate and warming plate, effectively can ensure the tightness of metal vacuum heat-insulating plate, 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 thermal insulation slab of weather strip edge sealing, comprise shell, core and vacuum chamber, it is characterized in that described shell is low carbon steel plate or mild steel composite plate, described core is positioned at the vacuum chamber that described shell is formed through seal welding, described core provides additional strength for described shell, ensure described shell planarization under atmospheric pressure, described vacuum chamber high vacuum in vacuum drying oven, glass solder welded seal is utilized under high temperature, 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.
In order to solve the problems of the technologies described above, the invention provides a kind of preparation method of metal vacuum thermal insulation slab of weather strip edge sealing, it is characterized in that comprising the following steps:
The first step, makes two pieces of Shell Plates respectively according to the shape of the metal vacuum thermal insulation slab of the weather strip edge sealing of required making and size, and it is shaping and make weather strip at edge weld Shell Plate to be carried out flanging;
Second step, first by after core shaping and drying, puts into the cavity that lower shell plate is formed, is bending down the weld coated glass solder of Shell Plate, and reserved bleed-off passage, then two pieces of Shell Plate consistencies from top to bottom are combined, then send in continuous vacuum stove;
3rd step, is introduced in the pre-vacuum chamber of vacuum drying oven, carries out forvacuum and preheats; Then enter in the vacuum chamber of vacuum drying oven, further gas clean-up and heating-up temperature, after vacuum reaches requirement, then be warming up to the temperature 380-500 DEG C of welding, after glass solder fusing, upper lower shell plate is bonded together; Enter subsequently in the cooling chamber of vacuum drying oven, by vacuum chamber hermetic welded seal after glass solder solidifies, after going out vacuum drying oven, obtain vacuum heat-insulating plate.
Wherein, the metal vacuum thermal insulation slab 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 thermal insulation slab of described weather strip edge sealing has connector for installing or groove or hole or hole etc.
Wherein, described shell is low carbon steel plate or composite plate, can have decoration, overcoat above it, as coating, electrodeposited coating, F-C paint and decorative panel 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 core is inorganic heat insulation material, as glass fiber, pearlife, perlite, vermiculite, aeroge etc.
Wherein, can there be infrared reflective material described core inside as aluminium foil etc., to reduce radiant heat transfer.
Wherein, described core through preliminarily dried, pack, vacuumize after put into described shell again, to reduce shell deflection under atmospheric pressure, to keep the planarization of shell.
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 vacuum composite 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 carry out pressure welding, 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 core 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 vacuum drying oven comprises pre-vacuum chamber, vacuum chamber and cooling chamber etc., and described pre-vacuum chamber carries out preliminary vacuumizing and heat, and the temperature of pre-vacuum chamber is 300-350 DEG C, pressure is 10-1000Pa; Described vacuum chamber vacuumizes further and heats, and the vacuum reached required by welding and temperature, the temperature of vacuum chamber is 350-380 DEG C, pressure is 1-100Pa; Described cooling chamber is that vacuum chamber is cooled, and the temperature of cooling chamber is 200-300 DEG C, pressure is 10-1000Pa.
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 thermal insulation slab of weather strip edge sealing of the present invention forms primarily of metal material, and inorganic material selected by core, so have good fireproof performance; The metal vacuum thermal insulation slab 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 thermal insulation slab manufacture craft of weather strip edge sealing of the present invention 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 thermal insulation slab 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 thermal insulation slab 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 heat-insulating plate structure schematic diagram of weather strip edge sealing of the present invention.
In figure: 1. shell, 2. core, 3. glass solder, 4. weather strip.
Detailed description of the invention
Embodiment: see Fig. 1, the metal vacuum thermal insulation slab of weather strip edge sealing is by shell 1 and core 2, and the low carbon steel plate that shell 1 is 0.3-1.0mm by thickness is formed; Core 2 is glass fiber, pearlife, perlite, vermiculite, aeroge etc., preferably core 1 is carried out the process such as drying, plastic bag packaging, forvacuum.The preparation method of the metal vacuum thermal insulation slab of weather strip edge sealing is as follows: the thickness that first cutting two pieces is onesize is that the low carbon steel plate of 0.3mm is for making shell 1, and it is shaping 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 4 by the mode of printing or spray with cryogenic glass powder; Certain particle size pearlife or perlite etc. after the drying of continous way kiln, load in polybag, after vacuumizing and seal, become and have less volume and certain shape core 2 by next; Again will package core 2 and put into the cavity of lower casing 1, at the weld coated glass solder 3 of lower casing 1, glass solder 3 leaves slit as the passage vacuumized; Send in continuous vacuum stove after last shell 1 is closed, vacuum drying oven comprises pre-vacuum chamber, vacuum chamber, cooling chamber and compound room etc., tentatively vacuumizing and heating through pre-vacuum chamber, the polybag of packaging core 2 is melted, complete in a vacuum chamber and vacuumize and pressure welding, after cooling chamber cooling, glass solder 3 solidifies, and shell 1 is shaped and reached airtight sealing; The metal vacuum thermal insulation slab of weather strip edge sealing is obtained after going out vacuum drying oven; In order to protecting sheathing 1 with play decoration function, the surface of shell 1 can brushing F-C paint or sticking decorative board.
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 thermal insulation slab of a weather strip edge sealing, comprise shell, core and vacuum chamber, it is characterized in that described shell is low carbon steel plate or mild steel composite plate, described core is positioned at the vacuum chamber that described shell is formed through seal welding, described core provides additional strength for described shell, ensure described shell planarization under atmospheric pressure, described vacuum chamber high vacuum in vacuum drying oven, glass solder welded seal is utilized under high temperature, 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.
2. the metal vacuum thermal insulation slab of weather strip edge sealing as claimed in claim 1, is characterized in that the metal vacuum thermal insulation slab of described weather strip edge sealing comprises surface plate, curved slab, bending plate and sketch plate.
3. the metal vacuum thermal insulation slab of weather strip edge sealing as claimed in claim 1, is characterized in that described core is glass fiber, pearlife, perlite, vermiculite or aeroge.
4. the metal vacuum thermal insulation slab of weather strip edge sealing as claimed in claim 1, it is characterized in that described core through preliminarily dried, pack, vacuumize after put into described shell again.
5. the metal vacuum thermal insulation slab 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 thermal insulation slab 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 thermal insulation slab of weather strip edge sealing as claimed in claim 1, is characterized in that described glass solder is pressure welding.
8. the metal vacuum thermal insulation slab of weather strip edge sealing as claimed in claim 1, is characterized in that can there be infrared reflective material described core inside as aluminium foil.
9. the metal vacuum thermal insulation slab 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 thermal insulation slab 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, makes two pieces of Shell Plates respectively according to the shape of the metal vacuum thermal insulation slab of the weather strip edge sealing of required making and size, and it is shaping and make weather strip at edge weld Shell Plate to be carried out flanging;
Second step, first by after core shaping and drying, puts into the cavity that lower shell plate is formed, is bending down the weld coated glass solder of Shell Plate, and reserved bleed-off passage, then two pieces of Shell Plate consistencies from top to bottom are combined, then send in continuous vacuum stove;
3rd step, is introduced in the pre-vacuum chamber of vacuum drying oven, carries out forvacuum and preheats; Then enter in the vacuum chamber of vacuum drying oven, further gas clean-up and heating-up temperature, after vacuum reaches requirement, then be warming up to the temperature 380-500 DEG C of welding, after glass solder fusing, upper lower shell plate is bonded together; Enter subsequently in the cooling chamber of vacuum drying oven, by vacuum chamber hermetic welded seal after glass solder solidifies, after going out vacuum drying oven, obtain vacuum heat-insulating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310723157.2A CN104746760A (en) | 2013-12-25 | 2013-12-25 | Metal vacuum heat-insulation plate with edge sealed by seal strip and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310723157.2A CN104746760A (en) | 2013-12-25 | 2013-12-25 | Metal vacuum heat-insulation plate with edge sealed by seal strip and manufacturing method thereof |
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| CN104746760A true CN104746760A (en) | 2015-07-01 |
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| CN201310723157.2A Pending CN104746760A (en) | 2013-12-25 | 2013-12-25 | Metal vacuum heat-insulation plate with edge sealed by seal strip and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975661A (en) * | 2015-07-08 | 2015-10-14 | 许浒 | Metal vacuum warming plate and manufacturing method for same |
| CN105155698A (en) * | 2015-07-08 | 2015-12-16 | 许浒 | Metal-gas heat-insulation plate and method for manufacturing same |
| CN113679222A (en) * | 2020-05-18 | 2021-11-23 | 新玛德制造厂有限公司 | Heat insulation cup |
-
2013
- 2013-12-25 CN CN201310723157.2A patent/CN104746760A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975661A (en) * | 2015-07-08 | 2015-10-14 | 许浒 | Metal vacuum warming plate and manufacturing method for same |
| CN105155698A (en) * | 2015-07-08 | 2015-12-16 | 许浒 | Metal-gas heat-insulation plate and method for manufacturing same |
| CN113679222A (en) * | 2020-05-18 | 2021-11-23 | 新玛德制造厂有限公司 | Heat insulation cup |
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