CN104746670A

CN104746670A - Glass welded double-vacuum-layer metal vacuum composite plate with getter and production method thereof

Info

Publication number: CN104746670A
Application number: CN201310721364.4A
Authority: CN
Inventors: 戴长虹
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-25
Filing date: 2013-12-25
Publication date: 2015-07-01

Abstract

The invention discloses a glass welded double-vacuum-layer metal vacuum composite plate with a getter. The double-vacuum-layer metal vacuum composite plate comprises a panel, core veneers and a vacuum cavity, and is characterized in that the shell is made from either a low carbon steel plate or a low carbon steel composite plate, the core veneers are placed in the inner bottom of the vacuum cavity and are used for providing additional strength to the shell to ensure the smoothness of the shell at barometric pressure, the vacuum cavity is a closed cavity formed by carrying out glass welding at constant temperature and high temperature and sealing at constant 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, and 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 getter

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 getter 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.Reach in the heat insulating material of A grade standard in combustibility, mainly with the inorganic material that mineral wool and rock wool are representative, but existing home made article requires very large gap with Application in Building in water absorption rate, intensity, weatherability etc., be directly used in construction wall insulation, problems such as water suction will being occurred, drop, be softening.In addition, A level heat insulating material cost is far away higher than organic material, and complicated construction technique construction cost is far beyond the expense of B level heat insulating material, and its poor thermal insulation property and energy consumption is high, the needs of national current energy-saving and emission-reduction can not be met.

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, a kind of novel glass solder two vacuum layer metal vacuum composite plates having getter and preparation method thereof are provided, this glass solder has the preparation method technique of two vacuum layer metal vacuum composite plates of getter simple, the prepared two vacuum layer metal vacuum composite plates of getter that have 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 plates of getter, 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 getter, 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 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, getter and 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 getter, 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 getter 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 one piece of Shell Plate makes extract opening wherein, two pieces of central layers make supporter and one piece of central layer makes bleed-off passage wherein, or supporter is produced on dividing 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 extract opening place places getter and solder, 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 getter.

Wherein, described glass solder has two vacuum layer metal vacuum composite plates of getter 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 getter to 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 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.

Wherein, described getter automatic activation under high temperature, high vacuum in capping processes.

Wherein, described getter comprises evaporable air-absorbing agent and nonevaporable getter.

Wherein, described getter is powdery, granular, banded, the various ways such as tubulose, ring-type, column.

Wherein, described getter can directly put into described vacuum chamber or extract opening, also can be contained in a container and put into described vacuum chamber or extract opening again.

Wherein, the preferred low-temperature metal solder of described solder and solder, as tin, zinc, magnesium etc. and alloy thereof, described material is existing commercial commodity.

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 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 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:

Glass solder of the present invention have the hermetically-sealed construction of two its getters of vacuum layer metal vacuum composite plate of getter simple, seal reliable, convenient for production, with low cost; In a vacuum furnace under high temperature, high vacuum, not only can direct activated degasser, and can effectively remove getter surface absorption gas, getter is regenerated, ensure that the gettering ability of getter; Vacuum chamber or its space of extract opening comparatively speaking can be very large, so can lay more substantial getter, the vacuum of the vacuum chamber time that is higher but also that maintain not only can be made longer; 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; Glass solder is made up of primarily of metal material two vacuum layer metal vacuum composite plates of getter, and central layer can select inorganic material or fire proofing, so have good fireproof performance; Glass solder has two its shells of vacuum layer metal vacuum composite plate of getter 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; Glass solder has two vacuum layer metal vacuum composite plates of getter to be composited by multiple material, so not only thickness is thin, lightweight, and has very high mechanical strength; Glass solder has two its vacuum chambers of vacuum layer metal vacuum composite plate of getter to be divided into two by dividing plate to form 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; Glass solder has two vacuum layer metal vacuum composite plates of getter to adopt 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; Glass solder has two vacuum layer metal vacuum composite plates of getter 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; Glass solder has two vacuum layer metal vacuum composite plates of getter to 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 getter.

In figure: 1. shell, 2. central layer, 3. vacuum chamber, 4. supporter, 5. dividing plate, 6. extract opening, 7. solder, 8. getter, 9. 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 getter, 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; The air exhaust nozzle that extract opening 6 is directly stamped out by the upper low carbon steel plate of shell 1 and can form, getter 8 is placed in extract opening 6, place solder 7 in air exhaust nozzle as tin, zinc, magnesium and low-melting alloy thereof, solder 7 dissolves and automatically to seal extract opening 6 afterwards.Glass solder has the preparation method of two vacuum layer metal vacuum composite plates of getter 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 is as dividing plate 5 and reserved bleed-off passage; Secondly cutting two pieces of glass plates as central layer 2 and wherein on one piece of glass plate boring produce bleed-off passage, glass ink is printed and forms supporter 4 on a glass, after tempering process; Again at the weld coated glass solder 9 of the lower steel plate of two pieces of low carbon steel plates, glass solder 9 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 9, cooling solidification; Finally place getter 8, 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 is preferably more than 300 DEG C, to promote the eliminating of gas and the activation of getter 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 two vacuum layer metal vacuum composite plates that glass solder has getter; In order to protecting sheathing 1 with play decoration function, fluid sealant is smeared at extract opening 6 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

1. a glass solder has two vacuum layer metal vacuum composite plates of getter, 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 has two pieces at least, is positioned at described vacuum chamber, described central layer provides additional strength, ensures shell planarization under atmospheric pressure for described shell, 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, 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, getter and 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 getter, it is characterized in that described glass solder has two vacuum layer metal vacuum composite plates of getter 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 getter, 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 getter, 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 getter, 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 getter, 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 getter, 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 getter, 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 getter, it is characterized in that described getter automatic activation under high temperature, high vacuum in capping processes.

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 getter, it is characterized in that comprising the following steps: