CN104746746A - Glass welded stone composite vacuum plate with getter and production method thereof - Google Patents

Abstract

The invention discloses a glass welded stone composite vacuum plate with a getter. The stone composite vacuum plate comprises a panel, a connecting layer and a vacuum cavity, and is characterized in that the panel is made from a natural stone or an artificial stone, the panel and/or the connecting layer are sued for providing additional strength to the vacuum cavity to ensure the smoothness of the vacuum cavity at barometric pressure, and 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 a low carbon steel plate; 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 support and a getter are arranged in the vacuum cavity. A production plate of the stone composite vacuum plate with the getter provided by the invention is simple in process, the defects of an existing insulation board and an existing vacuum insulated panel can be overcome, the air-tightness of the vacuum cavity of the glass composite vacuum plate can be effectively ensured, the service life of the stone composite vacuum plate with the getter can be prolonged, and the strength, heat insulation, sound insulation and fire resistance can be improved.

Description

Glass solder has composite evacuated plate of the stone material of getter and preparation method thereof

Technical field

The present invention relates to energy-saving building technology field, particularly relating to a kind of glass solder has composite evacuated plate of the stone material of 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.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.

Stone material has good abrasion resistance and durability, through processing rear surface attractive in appearance be imbued with ornamental, a kind of building and ornament materials of top grade, but its acid resistance is weak, poor thermal insulation property, from great, the intensity of superthin stone is lower, the heat insulating material fire resistance that is composited with polyurethane foam is bad.

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 is provided to have composite evacuated plate of the stone material of getter and preparation method thereof, this glass solder has the preparation method technique of the composite evacuated plate of the stone material of getter simple, the prepared composite evacuated plate of the stone material of getter that has can overcome existing insulating board, the deficiency of vacuum heat-insulating plate and warming plate, effectively can ensure the tightness of the composite evacuated plate of stone material 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 a kind of glass solder and have the composite evacuated plate of the stone material of getter, comprise panel, articulamentum and vacuum chamber, it is characterized in that described panel is lithotome or artificial stone, described panel and or described articulamentum additional strength is provided, ensures vacuum chamber planarization under atmospheric pressure for described vacuum chamber, described vacuum chamber is the closed cavity welding edge sealing, under vacuo high temperature sealing by low carbon steel plate 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 pre-extract opening on vacuum chamber, has supporter and getter in described vacuum chamber.

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 composite evacuated plate of the stone material of getter, it is characterized in that comprising the following steps:

The first step, have the shape of the composite evacuated plate of the stone material of getter and size to make two pieces of panels and two pieces of low carbon steel plates for the formation of vacuum chamber respectively according to the glass solder of required making, it is shaping and make supporter and extract opening at least one piece of low carbon steel plate two pieces of low carbon steel plates for the formation of vacuum chamber to be carried out flanging;

Second step, first by the weld coated glass solder of the lower low carbon steel plate in two pieces of low carbon steel plates, again two pieces of low carbon steel plate consistencies from top to bottom are combined, then send in edge sealing heating furnace, by the heat fused of glass solder, cooling solidification, the edge of two pieces of low carbon steel plates 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 getter and 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 realize airtight sealing to vacuum chamber afterwards with stove cooling, solder, obtaining glass solder after going out vacuum drying oven has the composite evacuated plate of the stone material of getter.

Wherein, described glass solder has the composite evacuated plate of the stone material 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 the composite evacuated plate of the stone material of getter to have connector or groove etc. for installing.

Wherein, described glass solder has the surrounding of the composite evacuated plate of the stone material of getter or vacuum chamber to scribble fluid sealant or structure glue.

Wherein, described panel is lithotome or artificial stone, described lithotome comprises granite, marble, sandstone, limestone, lava etc., and described artificial stone comprises polyester artificial marble, composite artificial marble, silicate-type artificial marble, slug type artificial marble etc.;

Further, the preferred superthin stone of described panel, to save material, reduce costs, reduce deadweight, to increase safety;

Further, described panel is single stone material, or the stone material of combination;

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

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.

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 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 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 put into described vacuum chamber, 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:

Glass solder of the present invention have the hermetically-sealed construction of its getter of the composite evacuated plate of the stone material 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 of the present invention is made up of primarily of stone material and metal material the composite evacuated plate of the stone material of getter, and articulamentum can select inorganic material or fire proofing, so have good fireproof performance; Glass solder of the present invention has its panel of the composite evacuated plate of the stone material of getter can select the stone material of multiple decoration, 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; Panel can be assembled by little stone material, so not only can turn waste into wealth, and can increase style; Can process by counter plate in the process that composite plate is produced, make it have higher intensity, better acidproof and anti-pollution characteristic; Glass solder of the present invention has the composite evacuated plate of the stone material of getter to be made up of stone material and composite metal plate, so not only thickness is thin, lightweight, and has very high mechanical strength; Glass solder of the present invention has the composite evacuated plate of the stone material 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 of the present invention has the composite evacuated plate of the stone material 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 of the present invention has the composite evacuated plate of the stone material of getter to make sketch plate, is directly used in the production of refrigerator carriage, cold store, frozen products insulated container etc.

Accompanying drawing explanation

Fig. 1 is that glass solder of the present invention has the composite evacuated plated construction schematic diagram of the stone material of getter.

In figure: 1. panel, 2. articulamentum, 3. vacuum chamber, 4. supporter, 5. extract opening, 6. solder, 7. getter, 8. 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 panel 1, articulamentum 2, vacuum chamber 3 and supporter 4 the composite evacuated plate of the stone material of getter, and lithotome or artificial stone etc. that panel 1 is 2-8mm by thickness are formed; 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; Supporter 4 is made up of metal, pottery, glass or high polymer, and modes such as utilizing printing, print, spray, machinery lays becomes dot matrix to be distributed in vacuum chamber 3, 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 air exhaust nozzle that extract opening 5 is directly stamped out by the upper low carbon steel plate of vacuum chamber 3 and seal cover form, getter 7 is placed in extract opening 5, place solder 6 in air exhaust nozzle as tin, zinc, magnesium and low-melting alloy thereof, solder 6 dissolves and automatically to seal extract opening 5 afterwards.Glass solder has the preparation method of the composite evacuated plate of the stone material of getter as follows: the low carbon steel plate that first cutting two pieces is onesize is for making vacuum chamber 3, and it is shaping and make extract opening 5 to utilize the mode of punching press to carry out flanging to two pieces of low carbon steel plates, be that supporter 4 to be printed on wherein on one block of plate by raw material with cryogenic glass powder by the mode of printing; By the weld coated glass solder 8 of the lower low carbon steel plate in two pieces of low carbon steel plates, again two 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 two pieces of low carbon steel plates is hermetic welded together, complete edge sealing; Secondly make two pieces of onesize marble slabs as panel 1, choose epoxide-resin glue as articulamentum 2, two surfaces up and down panel 1 being pasted onto vacuum chamber 3 by articulamentum 2 form composite plate, and reserved bleed-off passage; Finally place getter and 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, with the activation of the eliminating and getter 7 that promote gas in vacuum chamber 3, after vacuum reaches, be warming up to sealing temperature again, solder 6 melts extract opening 5 self-closed, lower the temperature with stove, solder 6 solidifies final vacuum chamber 3 and realizes airtight sealing, opens vacuum drying oven and obtains glass solder and have the composite evacuated plate of the stone material of getter; 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, bleed-off passage is smeared fluid sealant and is decorated.

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 the composite evacuated plate of the stone material of getter, comprise panel, articulamentum and vacuum chamber, it is characterized in that described panel is lithotome or artificial stone, described panel and or described articulamentum additional strength is provided, ensures vacuum chamber planarization under atmospheric pressure for described vacuum chamber, described vacuum chamber is the closed cavity welding edge sealing, under vacuo high temperature sealing by low carbon steel plate 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 pre-extract opening on vacuum chamber, has supporter and getter in described vacuum chamber.

2. glass solder as claimed in claim 1 has the composite evacuated plate of the stone material of getter, it is characterized in that described glass solder has the composite evacuated plate of the stone material of getter to comprise surface plate, curved slab, bending plate and sketch plate.

3. glass solder as claimed in claim 1 has the composite evacuated plate of the stone material of getter, it is characterized in that described articulamentum is bonding adhesive or plastic sheet.

4. glass solder as claimed in claim 1 has the composite evacuated plate of the stone material of getter, it is characterized in that can having enhancement Layer or stiffener in described articulamentum.

5. glass solder as claimed in claim 1 has the composite evacuated plate of the stone material 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 the composite evacuated plate of the stone material of getter, 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 composite evacuated plate of the stone material of getter, it is characterized in that described glass solder is pressure welding.

8. glass solder as claimed in claim 1 has the composite evacuated plate of the stone material of getter, it is characterized in that above support has one to several layers.

9. glass solder as claimed in claim 1 has the composite evacuated plate of the stone material 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 the composite evacuated plate of the stone material of getter, it is characterized in that comprising the following steps:

The first step, have the shape of the composite evacuated plate of the stone material of getter and size to make two pieces of panels and two pieces of low carbon steel plates for the formation of vacuum chamber respectively according to the glass solder of required making, it is shaping and make supporter and extract opening at least one piece of low carbon steel plate two pieces of low carbon steel plates for the formation of vacuum chamber to be carried out flanging;

Second step, first by the weld coated glass solder of the lower low carbon steel plate in two pieces of low carbon steel plates, again two pieces of low carbon steel plate consistencies from top to bottom are combined, then send in edge sealing heating furnace, by the heat fused of glass solder, cooling solidification, the edge of two pieces of low carbon steel plates 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 getter and 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 realize airtight sealing to vacuum chamber afterwards with stove cooling, solder, obtaining glass solder after going out vacuum drying oven has the composite evacuated plate of the stone material of getter.