CN104746659A - Glass welded double-vacuum-layer stone composite vacuum board and production method thereof - Google Patents

Abstract

The invention discloses a glass welded double-vacuum-layer stone composite vacuum board. The double-vacuum-layer stone composite vacuum board composite insulation board comprises a panel, core veneers and a vacuum cavity, and is characterized in that the panel is made from either a natural stone or an artificial stone, the panel and/or the vacuum cavity are integrally formed by the connecting layer, the vacuum cavity is formed by welding thin low carbon steel plates, the panel and/or the connecting layer are used for providing additional strength to the vacuum cavity and the vacuum cavity is hermetically welded by a glass solder at high vacuum and high temperature in a vacuum furnace; the coefficients of thermal expansion of the low carbon steel plate and the glass solder are matched, a clapboard is arranged in the vacuum cavity and is used for dividing the vacuum cavity into double vacuum layers, and supports are arranged in the vacuum layers and are separately made or directly formed on the vacuum cavity or the clapboard. A production method of the double-vacuum-layer stone composite vacuum board provided by the invention is simple in process, and the strength, heat insulation, sound insulation and fire resistance can be improved.

Description

Two composite evacuated plate of vacuum layer stone material of glass solder and preparation method thereof

Technical field

The present invention relates to energy-saving building technology field, particularly relate to two composite evacuated plate of vacuum layer stone material of a kind of glass solder 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.

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, two composite evacuated plate of vacuum layer stone material of a kind of novel glass solder and preparation method thereof is provided, the preparation method technique of the two composite evacuated plate of vacuum layer stone material of this glass solder is simple, the prepared composite evacuated plate of two vacuum layer stone materials can overcome existing insulating board, the deficiency of vacuum heat-insulating plate and warming plate, effectively can ensure the tightness of two composite evacuated plate of vacuum layer stone material, increase the service life, and its intensity and heat insulation can be increased, sound insulation, fireproof performance, also there is good decorative effect simultaneously.

In order to solve the problems of the technologies described above, the invention provides the two composite evacuated plate of vacuum layer stone material of a kind of glass solder, comprise panel, articulamentum and vacuum chamber, it is characterized in that described panel is lithotome or artificial stone, described panel is connected as a whole with described vacuum chamber by described articulamentum, described vacuum chamber is welded by thin low carbon steel plate, described panel and or described articulamentum provide additional strength for described vacuum chamber, ensure vacuum chamber planarization under atmospheric pressure, described vacuum chamber high vacuum in vacuum drying oven, glass solder welded seal is utilized under high temperature, the coefficient of thermal expansion of described low carbon steel plate and described glass solder matches, 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, supporter is had in described vacuum layer, above support makes separately or directly formed on vacuum chamber or dividing plate.

In order to solve the problems of the technologies described above, the invention provides the preparation method of the two composite evacuated plate of vacuum layer stone material of a kind of glass solder, it is characterized in that comprising the following steps:

The first step, two pieces of panels and two pieces of low carbon steel plates for the formation of vacuum chamber and one piece of dividing plate is made respectively according to the shape of the two composite evacuated plate of vacuum layer stone material of the glass solder of required making and size, two pieces of low carbon steel plates for the formation of vacuum chamber are carried out flanging shaping, and make supporter on two pieces of low carbon steel plates, or supporter is produced on dividing plate;

Second step, first by the weld coated glass solder of the lower low carbon steel plate in two pieces of low carbon steel plates and or dividing plate, and reserved bleed-off passage, then is placed on consistency from top to bottom between two pieces of low carbon steel plates and is combined, then send in continuous vacuum stove by dividing plate;

3rd step, is introduced in the pre-vacuum chamber of vacuum drying oven, carries out forvacuum and preheats; Then enter in the vacuum chamber of vacuum drying oven, further gas clean-up and heating-up temperature, after vacuum reaches requirement, then be warming up to the temperature 380-500 DEG C of welding, after glass solder fusing, upper and lower low carbon steel plate and dividing plate are bonded together; Enter subsequently in the cooling chamber of vacuum drying oven, by vacuum chamber hermetic welded seal after glass solder solidifies; Finally enter in the compound room of vacuum drying oven, first spraying or lay articulamentum on the external surface of vacuum chamber, then panel covering is bonded on articulamentum, after going out vacuum drying oven, obtain the two composite evacuated plate of vacuum layer stone material of glass solder.

Wherein, the two composite evacuated plate of vacuum layer stone material of described glass solder comprises the various forms of sheet materials such as surface plate, curved slab, bending plate, sketch plate.

Wherein, the two composite evacuated plate of vacuum layer stone material of described glass solder has connector for installing or groove etc.

Wherein, the surrounding of the two composite evacuated plate of vacuum layer stone material of described glass solder or vacuum chamber scribbles 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; 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 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 welding can be carried out in vacuum drying oven, also can carry out outside vacuum drying oven, can also first vacuum drying oven outer sealing edge, after seal in vacuum drying oven; Described edge sealing is connected together by the peripheral weld of described vacuum chamber, and described sealing is that the extract opening on the surface or side that are reserved in vacuum chamber is carried out welded seal.

Wherein, described vacuum drying oven comprises pre-vacuum chamber, vacuum chamber, cooling chamber and compound room etc., and described pre-vacuum chamber carries out preliminary vacuumizing and heat, and the temperature of pre-vacuum chamber is 300-350 DEG C, pressure is 10-1000Pa; Described vacuum chamber vacuumizes further and heats, and the vacuum reached required by welding and temperature, the temperature of vacuum chamber is 350-380 DEG C, pressure is 0.001-0.1Pa; Described cooling chamber is that vacuum chamber is cooled, and the temperature of cooling chamber is 200-300 DEG C, pressure is 10-1000Pa; Described compound room is combined with each other by articulamentum and vacuum chamber by panel, and the temperature of compound room is 50-200 DEG C, pressure is 10-1000Pa.

Wherein, above support can be the supporter made separately, also can be on the low carbon steel plate making vacuum chamber by mechanical means as punching press the projection that formed, as point, line etc.;

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

Wherein, above support has one to several layers.

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

The invention has the beneficial effects as follows:

The present invention 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; Vacuum chamber is welded in employing at higher temperature and vacuum, composite joint layer and panel at lower temperature and vacuum, both the condition of high vacuum degree of vacuum chamber and the intensity of glass solder and tightness had been ensure that, the temperature of articulamentum compound tense can be reduced again, make articulamentum can the kind of the selection of material especially organic material increases greatly, the price of material significantly declines; Panel and articulamentum under vacuo while hot with vacuum chamber compound, not only shorten technological process, reduce energy consumption, and panel, articulamentum, eliminate the existence of bubble between vacuum chamber, make the combination between panel, articulamentum, vacuum chamber more solid and reliable; 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; The two composite evacuated plate of vacuum layer stone material of glass solder of the present invention is made up of stone material and composite metal plate, so not only thickness is thin, lightweight, and has very high mechanical strength; Two its vacuum chamber of the composite evacuated plate of vacuum layer stone material of glass solder of the present invention is divided into two by dividing plate and forms two vacuum layer, the cost of increase and operation little, but effectively can improve heat insulation, sound insulation and the mechanical performance of composite evacuated plate; The two vacuum layer stone material composite evacuated plate manufacture craft of glass solder of the present invention is simple, cost of production is low, can mechanization, automation, production in enormous quantities, product can be widely used in interior wall, exterior wall and curtain wall, the consumption that can greatly reduce material and the energy, the weight alleviating building, shortening building cycle; The two composite evacuated plate of vacuum layer stone material of glass solder of the present invention not only can be applied to new building, and the energy-conservation of existing building and outward appearance transformation can be applied to, not only can wet combining but also can be cladding, can greatly save the engineering time compared with existing heat insulating material, improve heat insulation and soundproof effect; The two composite evacuated plate of vacuum layer stone material of glass solder of the present invention can also 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 the two composite evacuated plated construction schematic diagram of vacuum layer stone material of glass solder of the present invention;

Fig. 2 of the present inventionly has the two composite evacuated plated construction schematic diagram of vacuum layer stone material of the glass solder of seal groove.

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

Detailed description of the invention

Embodiment 1: see Fig. 1, the two composite evacuated plate of vacuum layer stone material of glass solder is made up of panel 1, articulamentum 2, vacuum chamber 3, supporter 4 and dividing plate 5, and panel 1 is that the lithotome of 2-8mm or artificial stone etc. are formed by thickness; Articulamentum 2 is resistant to elevated temperatures bonding adhesive, can select organic adhesion agent and conventional inorganic adhesive or the organo-mineral complexing bonding adhesive etc. such as the resistant to elevated temperatures phenolic resin glue of normal temperature or hot setting, epoxide-resin glue, organic siliconresin glue and polyimides; The low carbon steel plate that vacuum chamber 3 is 0.3-1.0mm by thickness is welded, and dividing plate 5 can adopt same sheet material, directly welds together with vacuum chamber 3, makes vacuum chamber 3 form two independently vacuum layer; Supporter 4 is made up of metal, pottery, glass or high polymer, modes such as utilizing printing, print, spray, machinery lays becomes dot matrix to be distributed on two surfaces up and down of dividing plate 5, the bearing height of supporter 4 is advisable with 0.15-1.0mm, and the diameter of the strong point is advisable with 0.3-1.0mm.The preparation method of the two composite evacuated plate of vacuum layer stone material of glass solder is as follows: the low carbon steel plate that first cutting two pieces is onesize is for making vacuum chamber 3, and it is shaping to utilize the mode of punching press to carry out flanging to two pieces of low carbon steel plates, the low carbon steel plate that cutting one piece is more smaller again, as dividing plate 5, is that supporter 4 is printed on two surfaces up and down of dividing plate 5 by raw material by the mode of printing with cryogenic glass powder; By in three pieces of low carbon steel plates, the weld coated glass solder 6 of lower two pieces of low carbon steel plates, then be combined by three pieces of low carbon steel plate consistencies from top to bottom, glass solder 6 leaves slit as the passage vacuumized; Secondly the low carbon steel plate closed after sheet is sent in continuous vacuum stove, vacuum drying oven comprises pre-vacuum chamber, vacuum chamber, cooling chamber and compound room etc., tentatively vacuumizing and heating through pre-vacuum chamber, complete in a vacuum chamber and vacuumize and pressure welding, after cooling chamber cooling, glass solder 6 solidifies, and vacuum chamber 3 is shaped and reached airtight sealing; Finally make two pieces of onesize ultra-thin marble slabs as panel 1, choose epoxide-resin glue as articulamentum 2, successively panel 1 is pasted onto on two surfaces up and down of vacuum chamber 3 by articulamentum 2 in the compound room of vacuum drying oven, after applying pressure, forms composite plate; The two composite evacuated plate of vacuum layer stone material of glass solder is obtained after going out vacuum drying oven; In order to protect vacuum chamber 3 and attractive in appearance, the surrounding of vacuum chamber 3 can smear fluid sealant or structure glue.

Embodiment 2: see embodiment 1 and Fig. 2, substantially the same manner as Example 1, difference is that dividing plate 5 adopts aluminium alloy plate, is placed directly in vacuum chamber 3, the low carbon steel plate forming vacuum chamber 3 directly stamps out the seal groove of supporter 4 and edge sealing, placing glass solder in seal groove when punch forming.

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. the two composite evacuated plate of vacuum layer stone material of glass solder, comprise panel, articulamentum and vacuum chamber, it is characterized in that described panel is lithotome or artificial stone, described panel is connected as a whole with described vacuum chamber by described articulamentum, described vacuum chamber is welded by thin low carbon steel plate, described panel and or described articulamentum provide additional strength for described vacuum chamber, ensure vacuum chamber planarization under atmospheric pressure, described vacuum chamber high vacuum in vacuum drying oven, glass solder welded seal is utilized under high temperature, the coefficient of thermal expansion of described low carbon steel plate and described glass solder matches, 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, supporter is had in described vacuum layer, above support makes separately or directly formed on vacuum chamber or dividing plate.

2. the two composite evacuated plate of vacuum layer stone material of glass solder as claimed in claim 1, is characterized in that the two composite evacuated plate of vacuum layer stone material of described glass solder comprises surface plate, curved slab, bending plate and sketch plate.

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

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

5. the two composite evacuated plate of vacuum layer stone material of glass solder as claimed in claim 1, it is characterized in that described vacuum chamber has one to several, when described vacuum chamber is two, upper and lower two vacuum chambers stack bonding along the diagonal dislocation of lower upper surface, it is made to form overlap edge, to reduce edge cold bridge impact during installation.

6. the two composite evacuated plate of vacuum layer stone material of glass solder as claimed in claim 1, is characterized in that described dividing plate is metal sheet, glass plate, ceramic wafer or resistant to elevated temperatures high polymer plate.

7. the two composite evacuated plate of vacuum layer stone material of glass solder as claimed in claim 1, is characterized in that described dividing plate can be integrally welded with the inwall of vacuum chamber, makes vacuum chamber form two independently vacuum layer; Described dividing plate also can be placed directly in vacuum chamber, makes vacuum chamber form the vacuum layer of Liang Ge UNICOM.

8. the two composite evacuated plate of vacuum layer stone material of glass solder as claimed in claim 1, is characterized in that described glass solder is pressure welding.

9. the two composite evacuated plate of vacuum layer stone material of glass solder as claimed in claim 1, is characterized in that the inwall of described vacuum chamber can have coating that is heat insulation, sound insulation, has getter in described vacuum chamber.

10. the preparation method of the two composite evacuated plate of vacuum layer stone material of the glass solder described in any one of claim 1 to 9, is characterized in that comprising the following steps:

The first step, two pieces of panels and two pieces of low carbon steel plates for the formation of vacuum chamber and one piece of dividing plate is made respectively according to the shape of the two composite evacuated plate of vacuum layer stone material of the glass solder of required making and size, two pieces of low carbon steel plates for the formation of vacuum chamber are carried out flanging shaping, and make supporter on two pieces of low carbon steel plates, or supporter is produced on dividing plate;

Second step, first by the weld coated glass solder of the lower low carbon steel plate in two pieces of low carbon steel plates and or dividing plate, and reserved bleed-off passage, then is placed on consistency from top to bottom between two pieces of low carbon steel plates and is combined, then send in continuous vacuum stove by dividing plate;

3rd step, is introduced in the pre-vacuum chamber of vacuum drying oven, carries out forvacuum and preheats; Then enter in the vacuum chamber of vacuum drying oven, further gas clean-up and heating-up temperature, after vacuum reaches requirement, then be warming up to the temperature 380-500 DEG C of welding, after glass solder fusing, upper and lower low carbon steel plate and dividing plate are bonded together; Enter subsequently in the cooling chamber of vacuum drying oven, by vacuum chamber hermetic welded seal after glass solder solidifies; Finally enter in the compound room of vacuum drying oven, first spraying or lay articulamentum on the external surface of vacuum chamber, then panel covering is bonded on articulamentum, after going out vacuum drying oven, obtain the two composite evacuated plate of vacuum layer stone material of glass solder.