CN104746712A - Double-vacuum-layer metal composite vacuum heat-insulation plate with edge sealed by seal strip and manufacturing method thereof - Google Patents

Abstract

A double-vacuum-layer metal composite vacuum heat-insulation plate with the edge sealed by a seal strip comprises a face plate, a connecting layer and a vacuum cavity and is characterized in that the face plate is a metal plate or a metal composite plate, the vacuum cavity is a closed cavity formed by welding a low-carbon steel plate 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, the sealing is automatic sealing performed by utilizing an air exhaust opening pre-formed in the vacuum cavity and a low-temperature solder in a vacuum furnace according to a liquid seal principle, a partition plate is arranged in the vacuum cavity and divides the vacuum cavity into two to form double vacuum layers, and supports are arranged in the vacuum layers. A manufacturing method of the double-vacuum-layer metal composite vacuum heat-insulation plate is simple in process, the manufactured double-vacuum-layer metal composite vacuum heat-insulation plate can overcome the shortcomings of existing heat preservation plates and vacuum heat-insulation plates, and strength and heat-insulation, sound-insulation and fireproof performance can be improved.

Description

Two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing and preparation method thereof

Technical field

The present invention relates to energy-saving building technology field, particularly relate to two vacuum layer metal composite vacuum insulation panel of a kind of weather strip edge sealing and preparation method thereof.

Background technology

The power consumption of the architectural energy consumption Yi Zhan whole society of China more than 1/3 and in the trend that increases year by year, adopt heat preservation construction material to be one of Main Means reducing building energy consumption.Current 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 large fire spread can be accelerated; Simultaneously, molten contracting can be there is in organic material when fire, produce density flaming droplet, on initiation insulation layer, institute's tile fixing comes off, cause spot fire and secondary injury possibly, so national departments concerned prohibites exterior-wall heat insulation use organic insulation material, particularly at 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, two vacuum layer metal composite vacuum insulation panel of a kind of novel weather strip edge sealing and preparation method thereof is provided, the preparation method technique of the two vacuum layer metal composite vacuum insulation panel of this weather strip edge sealing is simple, prepared two vacuum layer metal composite vacuum insulation panels can overcome existing insulating board, the deficiency of vacuum heat-insulating plate and warming plate, effectively can ensure the tightness of two vacuum layer metal composite vacuum insulation 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 the two vacuum layer metal composite vacuum insulation panel of a kind of weather strip edge sealing, comprise panel, articulamentum and vacuum chamber, it is characterized in that described panel is metal sheet or composite metal plate, described panel and or described articulamentum provide additional strength for described vacuum chamber, ensure vacuum chamber planarization under atmospheric pressure, described vacuum chamber welds edge sealing by low carbon steel plate 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 pre-extract opening on vacuum chamber, described solder comprises low-temperature metal and solder, a dividing plate is had in described vacuum chamber, described dividing plate forms two vacuum layer by being divided into two in described vacuum chamber, have supporter in described vacuum layer, above support makes separately or directly formed on vacuum chamber or dividing plate.

In order to solve the problems of the technologies described above, the invention provides the preparation method of the two vacuum layer metal composite vacuum insulation panel of a kind of weather strip edge sealing, it is characterized in that comprising the following steps:

The first step, two pieces of panels and two pieces of low carbon steel plates for the formation of vacuum chamber and one piece of dividing plate is made respectively according to the shape of the two vacuum layer metal composite vacuum insulation panel of the weather strip edge sealing of required making and size, two pieces of low carbon steel plates for the formation of vacuum chamber are carried out flanging shaping, edge weld make weather strip, and make supporter and extract opening on two pieces of low carbon steel plates, or supporter is produced on dividing plate;

Second step, first by the weld coated glass solder of the lower low carbon steel plate in two pieces of low carbon steel plates and or dividing plate, again dividing plate is placed between two pieces of low carbon steel plates, consistency from top to bottom is combined, then send in edge sealing heating furnace, by the heat fused of glass solder, cooling solidification, the edge of vacuum chamber is hermetic welded together; Vacuum chamber after edge sealing is joined together to form composite plate by articulamentum and two pieces of panels; In extract opening, place solder, composite plate is sent in vacuum drying oven, once can send into one to several piece;

3rd step, first vacuum drying oven is warming up to the temperature close to solder fusing, again vacuum drying oven is evacuated to below 0.1Pa, then vacuum drying oven is warming up to the temperature of sealing, by extract opening self-closed after solder fusing, solidify rear airtight sealing is realized to vacuum chamber with stove cooling, solder, after going out vacuum drying oven, obtain the two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing.

Wherein, the two vacuum layer metal composite vacuum insulation 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 two vacuum layer metal composite vacuum insulation panel of described weather strip edge sealing has connector for installing or groove etc.

Wherein, the surrounding of the two vacuum layer metal composite vacuum insulation panel of described weather strip edge sealing or vacuum chamber scribbles fluid sealant or structure glue.

Wherein, described panel is metal sheet, as iron plate, corrosion resistant plate, aluminium alloy plate etc., can have decoration, overcoat above it, as coating, electrodeposited coating, F-C paint etc.;

Further, the preferred ultra thin plate of described panel, with weight reduction and cost;

Further, described panel is single metal sheet, or composite metal plate;

Further, described panel can be commaterial, also can be two kinds of different materials.

Wherein, two surfaces up and down of described panel or the two vacuum layer metal composite vacuum insulation panel of described weather strip edge sealing, or the whole external surface of the two vacuum layer metal composite vacuum insulation panel of described weather strip edge sealing.

Wherein, described articulamentum is bonding adhesive or plastic sheet;

Further, 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.;

Further, the preferred resistant to elevated temperatures thermoplastic of described plastic sheet, as polyamide, poly-to mock, PVB film etc.

Wherein, described articulamentum can be one to several layers;

Further, enhancement Layer or stiffener can be had, as fiber, reinforcing rib, reinforcing mat, stiffener etc. in described articulamentum or between described articulamentum.

Wherein, panel and vacuum chamber can connect as one before vacuumizing or in vacuum or after vacuumizing by described articulamentum.

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 dividing plate is low carbon steel plate, 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 Liang Ge UNICOM.

Wherein, described dividing plate is that mirror board or its surface are coated with low-radiation film.

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 and described panel by described articulamentum and described vacuum chamber in conjunction with time, 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 extract opening has one or two, and namely described vacuum layer can share an extract opening or each vacuum layer respectively has an extract opening.

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 the low carbon steel plate making vacuum chamber by mechanical means as 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.

Wherein, above support can directly be produced on described dividing plate, also can form one with the inwall of described vacuum chamber by punching press, roll extrusion and welding, the mode such as bonding.

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 two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing of the present invention forms primarily of metal material, and articulamentum can select inorganic material or fire proofing, so have good fireproof performance; Two its panel of vacuum layer metal composite vacuum insulation 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 two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing of the present invention is made up of composite metal plate, so not only thickness is thin, lightweight, and has very high mechanical strength; Two its vacuum chamber of vacuum layer metal composite vacuum insulation panel of weather strip edge sealing of the present invention is divided into two by dividing plate and forms two vacuum layer, the cost of increase and operation little, but effectively can improve heat insulation, sound insulation and the mechanical performance of composite evacuated plate; The two vacuum layer metal composite vacuum insulation 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 two vacuum layer metal composite vacuum insulation 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 two vacuum layer metal composite vacuum insulation 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.

Accompanying drawing explanation

Fig. 1 is the two vacuum layer metal composite vacuum insulation panel structural representation of weather strip edge sealing of the present invention.

In figure: 1. panel, 2. articulamentum, 3. vacuum chamber, 4. supporter, 5. dividing plate, 6. extract opening, 7. solder, 8. glass solder, 9. 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.

Embodiment: see accompanying drawing, the two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing is made up of panel 1, articulamentum 2, vacuum chamber 3, supporter 4 and dividing plate 5, and panel 1 is that the metal sheet such as the corrosion resistant plate of 0.2-1.5mm or aluminium alloy plate is formed by thickness; Articulamentum 2 is resistant to elevated temperatures bonding adhesive, can select organic adhesion agent and conventional inorganic adhesive or the organo-mineral complexing bonding adhesive etc. such as the resistant to elevated temperatures phenolic resin glue of normal temperature or hot setting, epoxide-resin glue, organic siliconresin glue and polyimides; The low carbon steel plate that vacuum chamber 3 is 0.3-1.0mm by thickness utilizes glass solder 8 to be welded, and dividing plate 5 can adopt same sheet material, directly welds together with vacuum chamber 3, makes vacuum chamber 3 form two independently vacuum layer; Supporter 4 is made up of metal, pottery, glass or high polymer, modes such as utilizing printing, print, spray, machinery lays becomes 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; The air exhaust nozzle that extract opening 6 is directly stamped out by two pieces of low carbon steel plates up and down of vacuum chamber 3 and pit form, and place solder 7 as tin, zinc, magnesium and low-melting alloy thereof in air exhaust nozzle, and solder 7 dissolves and automatically to seal extract opening 6 afterwards.The preparation method of the two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing is as follows: the low carbon steel plate that first cutting two pieces is onesize is for making vacuum chamber 3, and utilize the mode of punching press to two pieces of low carbon steel plates carry out flanging shaping and make extract opening 6, the low carbon steel plate that cutting one piece is more smaller again as dividing plate 5 and reserved bleed-off passage, by the mode of printing or spray take cryogenic glass powder as raw material weather strip 9 be printed on low carbon steel plate edge weld, supporter 4 is printed on two surfaces up and down of dividing plate 5; By in three pieces of low carbon steel plates, the weld coated glass solder 8 of lower two pieces of low carbon steel plates, again three pieces of low carbon steel plate consistencies from top to bottom are combined, then send 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 8, cooling solidification, the edge of three pieces of low carbon steel plates is hermetic welded together, complete edge sealing; Next cuts out two pieces of onesize aluminium alloy plates as panel 1, chooses epoxide-resin glue as articulamentum 2, two surfaces up and down panel 1 being pasted onto vacuum chamber 3 by articulamentum 2 forms composite plate and reserved bleed-off passage; Finally place solder, one piece or composite plate are in batch sent in vacuum drying oven, below 0.1Pa is evacuated to after first heating makes the epoxy resin adhesive curing of articulamentum 2, temperature when vacuumizing is preferably more than 300 DEG C, to promote the eliminating of gas in vacuum chamber 3, be warming up to sealing temperature again, solder 7 melts extract opening 6 self-closed, lower the temperature with stove, solder 7 solidifies final vacuum chamber 3 and realizes airtight sealing, opens vacuum drying oven and obtains the two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing; In order to protect vacuum chamber 3 and attractive in appearance, the surrounding of vacuum chamber 3 can smear fluid sealant or structure glue; In order to protect panel 1 and play decoration function, fluid sealant smeared by bleed-off passage, the surface of panel 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. in, utilize solder according to hydraulic seal principle automatic-sealed, described solder comprises low-temperature metal and solder, a dividing plate is had in described vacuum chamber, described dividing plate forms two vacuum layer by being divided into two in described vacuum chamber, have supporter in described vacuum layer, above support makes separately or directly formed on vacuum chamber or dividing plate.

2. the two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing as claimed in claim 1, is characterized in that the two vacuum layer metal composite vacuum insulation panel of described weather strip edge sealing comprises surface plate, curved slab, bending plate and sketch plate.

3. the two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing as claimed in claim 1, is characterized in that described articulamentum is bonding adhesive or plastic sheet.

4. the two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing as claimed in claim 1, is characterized in that can having enhancement Layer or stiffener in described articulamentum.

5. the two vacuum layer metal composite vacuum insulation 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 two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing as claimed in claim 1, is characterized in that described dividing plate is low carbon steel plate, glass plate, ceramic wafer or resistant to elevated temperatures high polymer plate.

7. the two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing as claimed in claim 1, 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 Liang Ge UNICOM.

8. the two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing as claimed in claim 1, is characterized in that described glass solder is pressure welding.

9. the two vacuum layer metal composite vacuum insulation 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, has getter in described vacuum chamber.

10. the preparation method of the two vacuum layer metal composite vacuum insulation 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 panels and two pieces of low carbon steel plates for the formation of vacuum chamber and one piece of dividing plate is made respectively according to the shape of the two vacuum layer metal composite vacuum insulation panel of the weather strip edge sealing of required making and size, two pieces of low carbon steel plates for the formation of vacuum chamber are carried out flanging shaping, edge weld make weather strip, and make supporter and extract opening on two pieces of low carbon steel plates, or supporter is produced on dividing plate;

Second step, first by the weld coated glass solder of the lower low carbon steel plate in two pieces of low carbon steel plates and or dividing plate, again dividing plate is placed between two pieces of low carbon steel plates, consistency from top to bottom is combined, then send in edge sealing heating furnace, by the heat fused of glass solder, cooling solidification, the edge of vacuum chamber is hermetic welded together; Vacuum chamber after edge sealing is joined together to form composite plate by articulamentum and two pieces of panels; In extract opening, place solder, composite plate is sent in vacuum drying oven, once can send into one to several piece;

3rd step, first vacuum drying oven is warming up to the temperature close to solder fusing, again vacuum drying oven is evacuated to below 0.1Pa, then vacuum drying oven is warming up to the temperature of sealing, by extract opening self-closed after solder fusing, solidify rear airtight sealing is realized to vacuum chamber with stove cooling, solder, after going out vacuum drying oven, obtain the two vacuum layer metal composite vacuum insulation panel of weather strip edge sealing.