CN104746727A

CN104746727A - Glass welded metal vacuum composite plate welded with mounting hole and production method thereof

Info

Publication number: CN104746727A
Application number: CN201310721348.5A
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 metal composite vacuum plate welded with a mounting hole. The metal composite vacuum plate comprises a shell, core veneers and a cavity, and is characterized in that the mounting hole and an extraction opening are combined, the mounting hole penetrates through the entire composite plate, the shell is made from either alow carbon steel plate or a low carbon steel composite plates and the core veneers 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 low temperature solder comprises a low temperature metal and an alloy solder, the number of the core veneers is at least two and a support is arranged between the core veneers. A production method of the glass welded metal composite vacuum 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, fire resistance and decorative function can be improved.

Description

Glass solder metal vacuum composite plate having installing hole and preparation method thereof

Technical field

The present invention relates to energy-saving building technology field, particularly relate to a kind of glass solder metal vacuum composite plate 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 metal vacuum composite plate having installing hole and preparation method thereof is provided, this glass solder has the preparation method technique of the metal vacuum composite plate of installing hole simple, the prepared metal vacuum composite plate of installing hole that has can overcome existing insulating board, the deficiency of vacuum heat-insulating plate and warming plate, effectively can ensure the tightness of the metal vacuum composite plate of installing hole, 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 metal vacuum composite plate 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 is positioned at vacuum chamber for described shell provides additional strength, ensure shell planarization under atmospheric pressure, described vacuum chamber welds edge sealing by shell at constant-pressure and high-temperature lower-glass, high temperature seals and the closed cavity of formation under vacuo, the coefficient of thermal expansion of described low carbon steel plate and described glass solder matches, described sealing utilizes solder according to hydraulic seal principle automatic-sealed in a vacuum furnace prefabricated extract opening on shell, described solder comprises low-temperature metal and solder, described central layer has two pieces at least, has supporter between described central layer, and above support makes separately or the projection formed on central layer.

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

The first step, there are the shape of the metal vacuum composite plate of installing hole and size to make two pieces of Shell Plates and two pieces of central layers respectively according to the glass solder of required making, Shell Plate is carried out flanging shaping and make supporter at least one piece of central layer, each block of plate makes extract opening or installing hole;

Second step, first at the weld coated glass solder of the lower steel plate of two pieces of low carbon steel plates, and leaves bleed-off passage, and two pieces of central layers stack the shell neatly putting into two pieces of low carbon steel plate compositions and form composite plate; Then composite plate is sent in edge sealing heating furnace, by the heat fused of glass solder, cooling solidification, the edge of shell is hermetic welded together, complete edge sealing; Finally send in vacuum drying oven after solder is placed at extract opening place, once can send into several piece;

3rd step, first vacuum drying oven is warming up to the temperature being conducive to being vented, again vacuum drying oven is evacuated to below 0.1Pa, then vacuum drying oven is warming up to the temperature of sealing, solder fusing is by extract opening self-closed, with stove cooling, solder solidify rear to vacuum chamber realize tightness welding, open vacuum drying oven and obtain the metal vacuum composite plate that glass solder has installing hole.

Wherein, described glass solder has the metal vacuum composite plate 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 the metal vacuum composite plate of installing hole can also have connector for installing or groove or hole 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 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 edge sealing heating furnace or vacuum drying oven are the single-unit furnaces of batch production, or the tunnel kiln that continous way is produced; The edge sealing temperature of described edge sealing heating furnace is 360-500 DEG C, is preferably 380-480 DEG C; The vacuum of described vacuum drying oven is 0.001-0.1Pa, is preferably 0.005-0.05Pa; The sealing temperature of described vacuum drying oven is 150-450 DEG C, is preferably 280-350 DEG C.

Wherein, above support can be the supporter made separately, also can be on central layer as by mechanical means punching press the projection that formed, as point, line etc.;

Further, when above support makes separately, be point, line or the net etc. that adopt the materials such as metal, glass, pottery, high polymer to make.

Wherein, above support has one to several layers.

The invention has the beneficial effects as follows:

The present invention 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 of the present invention is made up of primarily of metal material the metal vacuum composite plate of installing hole, and central layer can select inorganic material or fire proofing, so have good fireproof performance; Glass solder of the present invention has its shell of metal vacuum composite plate of installing hole 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 of the present invention has the metal vacuum composite plate of installing hole to be composited by multiple material, so not only thickness is thin, lightweight, and has very high mechanical strength; Glass solder of the present invention has the metal vacuum composite plate of installing hole to adopt 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; Glass solder of the present invention has the metal vacuum composite plate of installing hole 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; Glass solder of the present invention has the metal vacuum composite plate of installing hole 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 the metal vacuum composite plate structure schematic diagram that glass solder of the present invention has installing hole.

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

Detailed description of the invention

Below adopt embodiment and accompanying drawing to describe embodiments of the present invention in detail, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.

See accompanying drawing, glass solder is made up of shell 1, central layer 2, vacuum chamber 3 and supporter 4 the metal vacuum composite plate of installing hole, and the thin low carbon steel plate that shell 1 is 0.3-1.0mm by thickness is formed; Central layer 2 is metal sheet, ceramic wafer, glass plate, plastic plate or composite plate etc., the aluminium alloy plate that preferred 1-2mm is thick or the thick armorplate glass etc. of 3-5mm; Supporter 4 is made up of metal, pottery, glass or high polymer, and modes such as utilizing printing, print, spray, machinery lays is that dot matrix is distributed between central layer 2, and the bearing height of supporter 4 is advisable with 0.15-1.0mm, and the diameter of the strong point is advisable with 0.3-1.0mm; The groove of the air exhaust nozzle that extract opening 5 is directly stamped out by the upper low carbon steel plate of shell 1 and lower low carbon steel plate forms, and places solder 6 in groove as tin, zinc, magnesium and low-melting alloy thereof, and solder 6 dissolves and automatically to seal extract opening 5 afterwards; Installing hole 5 and the same hole of air exhaust nozzle, through whole metal vacuum composite plate.Glass solder has the preparation method of the metal vacuum composite plate of installing hole as follows: the low carbon steel plate that first cutting two pieces is onesize for making shell 1, and utilize the mode of punching press to two pieces of low carbon steel plates carry out flanging shaping and make extract opening 5; Secondly cutting two pieces of glass plates drill through extract opening and installing hole 5 as central layer 2, are printed by glass ink and form supporter 4 on a glass, after tempering process; Again by the weld coated glass solder 7 of the lower low carbon steel plate in two pieces of low carbon steel plates, the shell 1 putting into two pieces of low carbon steel plate compositions after two pieces of central layer 2 mounted on top are neat forms composite plate, then composite plate is sent in edge sealing heating furnace, the edge sealing temperature of edge sealing heating furnace is 400-450 DEG C, by the heat fused of glass solder 7, cooling solidification, the edge of two pieces of low carbon steel plates is hermetic welded together, complete edge sealing; Finally in extract opening 5, place solder 6, one piece or composite plate are in batch sent in vacuum drying oven, first heat, be evacuated to below 0.1Pa again, temperature when vacuumizing is preferably more than 300 DEG C, to promote the eliminating of gas in vacuum chamber 3, after vacuum reaches, be warming up to sealing temperature again, solder 6 melts extract opening 5 self-closed, with stove cooling, solder 6 solidifies final vacuum chamber 3 and realizes airtight sealing, opens vacuum drying oven and obtains the metal vacuum composite plate that glass solder has installing hole; In order to protecting sheathing 1 with play decoration function, 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 the metal vacuum composite plate 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 is positioned at vacuum chamber for described shell provides additional strength, ensure shell planarization under atmospheric pressure, described vacuum chamber welds edge sealing by shell at constant-pressure and high-temperature lower-glass, high temperature seals and the closed cavity of formation under vacuo, the coefficient of thermal expansion of described low carbon steel plate and described glass solder matches, described sealing utilizes solder according to hydraulic seal principle automatic-sealed in a vacuum furnace prefabricated extract opening on shell, described solder comprises low-temperature metal and solder, described central layer has two pieces at least, has supporter between described central layer, and above support makes separately or the projection formed on central layer.

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

3. glass solder as claimed in claim 1 has the metal vacuum composite plate 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 the metal vacuum composite plate 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 the metal vacuum composite plate 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 the metal vacuum composite plate of installing hole, it is characterized in that the inwall of described vacuum chamber can have coating that is heat insulation, sound insulation.

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

8. glass solder as claimed in claim 1 has the metal vacuum composite plate of installing hole, it is characterized in that above support has one to several layers.

9. glass solder as claimed in claim 1 has the metal vacuum composite plate 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 the metal vacuum composite plate of installing hole, it is characterized in that comprising the following steps: