CN104746726A - Glass welded double-vacuum-layer metal vacuum composite plate with mounting hole and production method thereof - Google Patents

Abstract

The invention discloses a glass welded double-vacuum-layer metal vacuum composite plate with a mounting hole. The double-vacuum-layer metal vacuum composite plate comprises a shell, core veneers and a vacuum cavity, and is characterized in that the mounting hole and an extraction opening are combined, the shell is made from either a low carbon steel plate or a low carbon steel composite plate, the core veneers are located in the vacuum cavity and are used for providing additional strength to the shell to ensure the smoothness of the shell at barometric pressure, and the vacuum cavity is a closed cavity formed by carrying out glass welding at normal pressure and high temperature and sealing at high pressure to the shell; the sealing is that an extraction opening preformed in the vacuum cavity is automatically sealed by a low temperature solder in a vacuum furnace according to a liquid sealing theory, a clapboard is arranged in the vacuum cavity and is used for dividing the vacuum cavity into double vacuum layers in which supports are arranged. A production method of the double-vacuum-layer metal vacuum composite plate provided by the invention is simple in process, the defects of an existing insulation board and an existing vacuum insulated panel can be overcome, and the strength, heat insulation, sound insulation and fire resistance can be improved.

Description

Glass solder has two vacuum layer metal vacuum composite plate and the preparation method of installing hole

Technical field

The present invention relates to energy-saving building technology field, particularly relate to a kind of glass solder two vacuum layer metal vacuum composite plates having installing hole 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.

Evacuated panel can substitute existing warming plate and be applied to and require heat insulation and place that is sound insulation, and some installation sites need punching on warming plate to install, and evacuated panel obviously cannot punch when mounted thereon, otherwise can destroy its vacuum.

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, a kind of novel glass solder two vacuum layer metal vacuum composite plates having installing hole and preparation method thereof are provided, the preparation method technique of this pair of vacuum layer metal vacuum composite plate is simple, prepared two vacuum layer metal vacuum composite plates 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 vacuum composite 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 two vacuum layer metal vacuum composite plates that a kind of glass solder has installing hole, comprise shell, central layer and vacuum chamber, it is characterized in that installing hole and extract opening unite two into one, described installing hole is through whole composite plate, described shell is low carbon steel plate or mild steel composite plate, described central layer has two pieces at least, be positioned at described vacuum chamber, described central layer provides additional strength for described shell, 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 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, 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 central layer or dividing plate.

In order to solve the problems of the technologies described above, the invention provides the preparation method that a kind of glass solder has two vacuum layer metal vacuum composite plates of installing hole, it is characterized in that comprising the following steps:

The first step, there are the shape of two vacuum layer metal vacuum composite plates of installing hole and size to make two pieces of Shell Plates and two pieces of central layers and one piece of dividing plate respectively according to the glass solder of required making, two pieces of Shell Plates for the formation of vacuum chamber are carried out flanging shaping and make extract opening, two pieces of central layers make supporter or supporter is produced on dividing plate, fabrication and installation hole on each block of plate;

Second step, first two pieces of low carbon steel plates lower steel plate and or the weld coated glass solder of dividing plate, and leave bleed-off passage, the shell that two pieces of low carbon steel plates compositions put into successively by two pieces of central layers and dividing plate forms 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 vacuum drying oven and obtain two vacuum layer metal vacuum composite plates that glass solder has installing hole.

Wherein, described glass solder has two vacuum layer metal vacuum composite plates of installing hole to comprise the various forms of sheet materials such as surface plate, curved slab, bending plate, sketch plate.

Wherein, described glass solder has two vacuum layer metal vacuum composite plates of installing hole can also have 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 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, 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 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, 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 or installing hole have one to several.

Wherein, described extract opening can directly be pressed in shell upper punch, also first can make extract opening and be welded on shell again.

Wherein, 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 central layer or dividing plate 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 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; Two vacuum layer metal vacuum composite plate forms primarily of metal material, and central layer can select inorganic material or fire proofing, so have good fireproof performance; Two its shell of vacuum layer metal vacuum composite plate 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; Two vacuum layer metal vacuum composite plate is composited by multiple material, so not only thickness is thin, lightweight, and has very high mechanical strength; Two its vacuum chamber of vacuum layer metal vacuum composite plate 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 vacuum composite plate; Two vacuum layer metal vacuum composite plate adopts normal temperature and pressure lower sealing edge, high-temperature vacuum lower sealing, installing hole and extract opening unite two into one, 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; Two vacuum layer metal vacuum composite plate not only can be applied to new building, and the energy-conservation of existing building and outward appearance transformation can be applied to, installing hole can have one to several, 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; Two vacuum layer metal vacuum composite plate 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 two vacuum layer metal vacuum composite plate structure schematic diagrames that glass solder of the present invention has installing hole.

In figure: 1. shell, 2. central layer, 3. vacuum chamber, 4. supporter, 5. dividing plate, 6. extract opening and installing hole, 7. solder, 8. glass solder.

Detailed description of the invention

See accompanying drawing, glass solder is made up of shell 1, central layer 2, vacuum chamber 3, supporter 4 and dividing plate 5 two vacuum layer metal vacuum composite plates of installing hole, and the 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; Dividing plate 5 can adopt low carbon steel plate, directly welds together with shell 1, makes vacuum chamber 3 form two independently vacuum layer, or adopts high-temperature resistance plastice plate, is placed directly in vacuum chamber 3; 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; Metal annular groove on the lower low carbon steel plate of the air exhaust nozzle that extract opening 6 is directly stamped out by the upper low carbon steel plate of shell 1 and shell 1 forms, place solder 7 in metal annular groove as tin, zinc, magnesium and low-melting alloy thereof, solder 7 dissolves and automatically to seal extract opening 6 afterwards; Installing hole 6 and the same hole of air exhaust nozzle, through whole pair of vacuum layer metal vacuum composite plate.Glass solder has the preparation method of two vacuum layer metal vacuum composite plates of installing hole 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 6 to utilize the mode of punching press to carry out flanging to two pieces of low carbon steel plates, the more smaller low carbon steel plate of cutting one piece stamps out installing hole 6 as dividing plate 5; Secondly installing hole 6 is produced in the boring as central layer 2 and on two pieces of glass plates of cutting two pieces of glass plates, is printed by glass ink and forms supporter 4 on a glass, after tempering process; Again at the lower steel plate of two pieces of low carbon steel plates and the weld coated glass solder 8 of dividing plate 5, glass solder 8 leaves slit as the passage vacuumized, and the shell 1 that two pieces of low carbon steel plate compositions put into successively by two pieces of central layers 2 and dividing plate 5 forms composite plate; Then composite plate sent in edge sealing heating furnace, the edge sealing temperature of edge sealing heating furnace is 400-450 DEG C, the edge of shell 1 is hermetic welded together, complete edge sealing by the heat fused of glass solder 8, cooling solidification; Finally place solder 7 at extract opening 6 place, one piece or composite plate are in batch sent in vacuum drying oven, first heat, be evacuated to below 0.1Pa again, temperature when vacuumizing, preferably more than 300 DEG C, to promote the eliminating of gas in vacuum chamber 3, then is warming up to sealing temperature, solder 7 melts extract opening 6 self-closed, with stove cooling, solder 7 solidifies final vacuum chamber 3 and realizes airtight sealing, opens vacuum drying oven and obtains two vacuum layer metal vacuum composite plates that glass solder has installing hole; In order to protecting sheathing 1 with play decoration function, smear fluid sealant in installing hole 6 and install protective casing additional, 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. a glass solder has two vacuum layer metal vacuum composite plates of installing hole, comprise shell, central layer and vacuum chamber, it is characterized in that installing hole and extract opening unite two into one, described installing hole is through whole composite plate, described shell is low carbon steel plate or mild steel composite plate, described central layer has two pieces at least, be positioned at described vacuum chamber, described central layer provides additional strength for described shell, 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 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, 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 central layer or dividing plate.

2. glass solder as claimed in claim 1 has two vacuum layer metal vacuum composite plates of installing hole, it is characterized in that described glass solder has two vacuum layer metal vacuum composite plates of installing hole to comprise surface plate, curved slab, bending plate and sketch plate.

3. glass solder as claimed in claim 1 has two vacuum layer metal vacuum composite plates of installing hole, it is characterized in that described central layer is metal sheet, ceramic wafer, glass plate, plastic plate or composite plate.

4. glass solder as claimed in claim 1 has two vacuum layer metal vacuum composite plates of installing hole, it is characterized in that described central layer can have low-radiation film.

5. glass solder as claimed in claim 1 has two vacuum layer metal vacuum composite plates of installing hole, 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. glass solder as claimed in claim 1 has two vacuum layer metal vacuum composite plates of installing hole, it is characterized in that described central layer or dividing plate are metal sheet, glass plate, ceramic wafer or resistant to elevated temperatures high polymer plate.

7. glass solder as claimed in claim 1 has two vacuum layer metal vacuum composite plates of installing hole, it 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. glass solder as claimed in claim 1 has two vacuum layer metal vacuum composite plates of installing hole, it is characterized in that described glass solder is pressure welding.

9. glass solder as claimed in claim 1 has two vacuum layer metal vacuum composite plates of installing hole, it is characterized in that there is getter in described vacuum chamber.

10. the glass solder described in any one of claim 1 to 9 has the preparation method of two vacuum layer metal vacuum composite plates of installing hole, it is characterized in that comprising the following steps:

The first step, there are the shape of two vacuum layer metal vacuum composite plates of installing hole and size to make two pieces of Shell Plates and two pieces of central layers and one piece of dividing plate respectively according to the glass solder of required making, two pieces of Shell Plates for the formation of vacuum chamber are carried out flanging shaping and make extract opening, two pieces of central layers make supporter or supporter is produced on dividing plate, fabrication and installation hole on each block of plate;

Second step, first two pieces of low carbon steel plates lower steel plate and or the weld coated glass solder of dividing plate, and leave bleed-off passage, the shell that two pieces of low carbon steel plates compositions put into successively by two pieces of central layers and dividing plate forms 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 vacuum drying oven and obtain two vacuum layer metal vacuum composite plates that glass solder has installing hole.