CN102102797A - Vacuum insulation panel with groove on panel surface, and manufacturing method thereof - Google Patents
Vacuum insulation panel with groove on panel surface, and manufacturing method thereof Download PDFInfo
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- CN102102797A CN102102797A CN2010101512850A CN201010151285A CN102102797A CN 102102797 A CN102102797 A CN 102102797A CN 2010101512850 A CN2010101512850 A CN 2010101512850A CN 201010151285 A CN201010151285 A CN 201010151285A CN 102102797 A CN102102797 A CN 102102797A
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Abstract
The invention relates to a vacuum insulation panel and a manufacturing method thereof, in particular to the vacuum insulation panel with a groove on the panel surface, and the manufacturing method thereof. The vacuum insulation panel comprises a high-isolation package bag and an insulation core material; the insulation core material is arranged in the high-isolation package bag; a groove is formed on the panel surface of the vacuum insulation panel; a groove structural member is arranged in the groove; the groove structural member is a cylindrical profile which has high isolation performance, an opened upper gap and a closed lower gap; and the groove structural member and the high-isolation package bag are fused or spliced together to form a vacuum sealing cavity for holding the insulation core material. Compared with the prior art, the vacuum insulation panel manufactured by the invention has the advantages that the appearance of the vacuum insulation panel is flat and neat after the groove is processed, so wrinkles are eliminated, the ventilation amount at the wrinkle of the high-insulation package bag is reduced, and the service life of the vacuum insulation panel is prolonged.
Description
Technical field
The present invention relates to a kind of vacuum heat-insulating plate and preparation method thereof, be meant that especially a kind of plate wears vacuum heat-insulating plate of groove and preparation method thereof.
Background technique
Vacuum heat-insulating plate is to be made of surperficial high-barrier package bag and core, getter or sorbent.Completely cut off transmission of heat by the thermal conductivity that improves internal vacuum and reduction core to greatest extent, reach insulation, purpose of energy saving.
Vacuum heat-insulating plate (Vacuum insulation panel is called for short VIP) is a kind of superadiabatic thermal insulating material, and thermal conductivity is about 1/6 of a conventional thermoinsulation material thermal conductivity below 0.005w/ (mK).The thin thickness of vacuum heat-insulating plate, its thickness is generally at 5-40mm.Excellent heat-shielding performance and very thin thickness, make vacuum heat-insulating plate become a kind of novel, integrate efficient and energy-conservation thermal insulating material, be the revolution sexual development of thermal insulating material.With respect to traditional thermoinsulation materials such as polyurethane foam, vacuum heat-insulating plate is in its production and application process, do not use the ODS material, save the volume of thermal insulating material own, and thermal conductivity is lower, have environmental protection, efficient, energy-conservation triple advantages, be widely used in the field of thermal insulation such as low-temperature deep fields such as refrigerator ice cabinet, refrigerator car, medical HEATING BOX, shipping container, freezer and household electric appliances, Aero-Space, building.
When vacuum heat-insulating plate is used for the refrigerator thermal insulation layer, the thickness of vacuum heat-insulating plate can be reduced to general refrigerator with thermal insulating material half in addition still less, what this had not only increased refrigerator effectively utilizes the space, again can saving power about 30%, thereby at present designing and producing of vacuum heat-insulating plate is tending towards ripe, and domestic and international most refrigerator refrigerator producer is all at positive development and application vacuum heat-insulating plate plate.
In building field, taken the lead in beginning the application of vacuum heat-insulating plate in recent years in German and Switzerland, progressively set up the construction market of using vacuum heat-insulating plate in Germany and Switzerland, there have been tens of items to be applied to the heat insulation case history of building heat preservation so far.It is estimated that in European Union member countries, only use one of vacuum heat-insulating plate in the energy-conservation enforcement of old building reducing energy consumption and new building, the discharge amount of building CO2 just can reduce by 8%.In addition; the consumptive material of vacuum heat-insulating plate also will be economized than general thermal insulating material; thereby at architectural development and application vacuum heat-insulating plate; can be energy-efficient; can save a large amount of resources again; under the background of current energy-saving and emission-reduction, development low-carbon economy, intensification, the environmental protectionization that promotes construction industry had great significance.
No matter be which kind of field to use vacuum heat-insulating plate, all have certain restrictive factor to exist in.In fields such as household electric appliances such as water heater, refrigerator, solar water heater insulations, in Refrigerated container and field such as refrigeration tank car etc. in order to avoid the projection on the planes such as riveting component, nut, screw, machinery, just need be on vacuum heat-insulating plate plate face machined grooves; There is the machined grooves difficulty in the traditional vacuum thermal shield, low, the easy back distortion of the groove size precision of processing, problems such as the easy gauffer of processing rear groove place's high-barrier packaging material, intensity difference, cracky gas leakage.Thereby how preparing plate, to wear the vacuum heat-insulating plate of certain specification groove be problem demanding prompt solution.
Summary of the invention
Main purpose of the present invention is to overcome the shortcoming of the vacuum heat-insulating plate surface Machining groove difficulty of prior art, the vacuum heat-insulating plate that provides a kind of plate to wear groove solves thoroughly after the vacuum heat-insulating plate recessing that dimensional accuracy is low, intensity difference, easy problem such as fold and cracky.
Another object of the present invention is to provide a kind of preparation method of above-mentioned vacuum heat-insulating plate.
The present invention adopts following technological scheme:
A kind of plate is worn the vacuum heat-insulating plate of groove, comprise high-barrier package bag and insulated core material, this insulated core material is placed in this high-barrier package bag, be provided with getter in this insulated core material, recessing on the plate face of this vacuum heat-insulating plate, in this groove, groove structure spare is installed, this groove structure spare is the opening suitable for reading with high obstructing performance, the tubular section bar of end opening sealing, this groove structure spare and described high-barrier package bag welding or bond together constitute the vacuum-sealed cavity of holding described insulated core material jointly.
Further, described groove structure spare is metal, glass, nylon, polyimide, polyethylene, polyvinyl alcohol, EVOH, PVDC or other high-barrier section bar.
Further, described groove structure spare comprises the cylinder of the upper and lower equal opening that metal, glass, nylon, polyimide, polyethylene, polyvinyl alcohol, EVOH, PVDC or other high-barrier section bar are made, in the lower surface welding of this cylinder or be bonded with high-isolation film with the end opening sealing.
Further, the direct and described high-barrier package bag welding or bonding of described groove structure spare upper surface, or by a melted material layer or layer of adhesive material and this high-barrier package bag welding or bonding.
Further, described insulated core material is single core or composite core material, is provided with getter and/or sorbent in this core.Single core is such as being pnenolic aldehyde foam material, polyurethane foam material, SiO 2 powder, glass wool, alumina silicate or rock wool etc.; Composite core material is such as being the heat insulation support composite material that inorfils such as hard phenolic aldehyde or urethane foam powder or SiO 2 powder and super glass wool or ultra-fine rock wool constitute.
Preferably, described composite core material is made up of the component of following weight proportion: super glass wool: centrifugal cotton=100: 1～50; Or super glass wool: mineral cotton=100: 1～60; Or super glass wool: centrifugal cotton: mineral cotton=100: 1～30: 1～50.Prepare core by in super glass wool, mixing centrifugal cotton and/or mineral cotton, because the relative super glass wool price of price of centrifugal cotton and mineral cotton is lower, core and vacuum heat-insulating plate contrast with the single super glass wool preparation of available technology adopting, cost of production significantly reduces, simultaneously still strength retention height, advantage that thermal conductivity is low.
Preferably, the wall thickness of described groove structure spare is 0.1-15mm.
Above-mentioned vacuum heat-insulating plate can adopt burning-on method or bonding method in the preparation.
Burning-on method comprises the steps:
Step 1 according to the groove size of required band groove vacuum heat-insulating plate, is made groove structure spare, and be full of packing in this groove structure spare;
Step 2 cuts employed core by required size, according to size recessing on the core relevant position of groove structure spare, and hold the slotted eye of placing getter at the mesosphere core successfully near sealing limit place;
Step 3 places heat treatment furnace with the core of holding groove successfully and heats, and maximum temperature is 120-160 ℃; Be incubated 5-10min rise to numerical value 120-160 ℃ of setting when temperature after, open heat treatment furnace then core is taken out, obtain heat treatment after core standby;
Step 4 is put into the groove on the core after the heat treatment with groove structure spare, with core according to thickness requirement with the high-barrier package bag of packing into of stacked sheet core, and with the getter getter slotted eye of packing into.
Step 5 is put into the high-barrier package bag that is placed with groove structure spare, getter and core in the vacuum sealer that pre-sets and to be vacuumized and to seal, and opens vacuum sealer at last, takes out vacuum heat-insulating plate;
Step 6, thermal fusion welding is carried out in the groove structure spare upper surface and the high-barrier package bag of gained vacuum heat-insulating plate in the step 5, with the part excision of high-barrier package bag in groove structure spare, take out the packing of filling in the groove structure spare, obtain the vacuum heat-insulating plate that plate is worn groove.
Bonding method comprises the steps:
Step 1 according to the groove size of required band groove vacuum heat-insulating plate, is made groove structure spare;
Step 2 cuts employed core by required size, according to size recessing on the core relevant position of groove structure spare, and hold the slotted eye of placing getter at the mesosphere core successfully near sealing limit place;
Step 3 places heat treatment furnace with the core of holding groove successfully and heats, and maximum temperature is 120-160 ℃; Be incubated 5-10min rise to numerical value 120-160 ℃ of setting when temperature after, open heat treatment furnace then core is taken out, obtain heat treatment after core standby;
Step 4, groove structure spare is put into the groove on the core after the heat treatment, with core according to thickness requirement with the high-barrier package bag of packing into of stacked sheet core, with groove structure spare upper surface coated with adhesive, upper surface in high-barrier package bag and the applying of groove structure spare applies certain pressure, it is bonding that it is fully fitted, and with the part excision of high-barrier package bag in groove structure spare, the getter slotted eye of again getter being packed into;
Step 5, the high-barrier package bag that is placed with groove structure spare, getter and core put in the vacuum sealer that pre-sets vacuumize and seal, open vacuum sealer at last, take out vacuum heat-insulating plate, obtain the vacuum heat-insulating plate that plate is worn groove.
Among the present invention, the groove of groove structure spare is cylindrical, cuboid shape, truncated cone, terrace with edge shape or various polymorphic structure, in a word, can freely select according to the actual needs.
By above-mentioned to the invention description as can be known, vacuum heat-insulating plate that a kind of plate of the present invention is worn groove and preparation method thereof has following beneficial effect:
One, flat appearance after the vacuum heat-insulating plate machined grooves of the present invention's preparation has been eliminated the generation of fold, has reduced the fold place Air permenbility of high-barrier package bag, has prolonged the life-span of vacuum heat-insulating plate;
Two, the groove structure spare of the vacuum heat-insulating plate that the present invention prepares can be obtained by methods such as cutting, punching press, forging, injection mouldings, improve the dimensional accuracy of groove greatly, has eliminated conventional method and has made defectives such as the back dimensional accuracy is low, meeting generation back distortion;
Three, higher after the vacuum heat-insulating plate machined grooves of the present invention's preparation in the groove mechanical strength, vacuum heat-insulating plate and some non-planar surface equipment are fitted tightly, avoid the projection on the planes such as riveting component, nut, screw, machinery, increase the utilization ratio of vacuum heat-insulating plate in small space, enlarged its using scope;
Four, preparation method's technology of vacuum heat-insulating plate of the present invention is easy, flexible, can open the groove of Any shape, any size and any number in any position of vacuum heat-insulating plate, and high-barrier package bag sealing in machined grooves place is reliable, easy operating.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the specific embodiment of the invention one;
Fig. 2 is the plan structure schematic representation of the specific embodiment of the invention one;
Fig. 3 is the sectional structure schematic representation of the specific embodiment of the invention two;
Fig. 4 is the plan structure schematic representation of the specific embodiment of the invention two;
Fig. 5 is the axle side structure schematic representation of the groove structure spare of the specific embodiment of the invention one;
Fig. 6 is the axle side structure schematic representation of the groove structure spare of the specific embodiment of the invention two.
Embodiment
Embodiment one
With reference to Fig. 1, Fig. 2 and Fig. 5, a kind of plate of the present invention is worn the vacuum heat-insulating plate of groove, comprise high-barrier package bag 10, insulated core material 20 and groove structure spare 40, insulated core material 20 is arranged in high-barrier package bag 10 and the groove structure spare 40 formed vacuum-sealed cavity, is provided with getter 30 in the insulated core material 20.The vacuum heat-insulating plate that this plate is worn groove adopts burning-on method in the preparation, comprises the steps:
Step 1 according to the depth of groove of required recessing vacuum heat-insulating plate, is got the high-barrier section bar than the big 0.1-10mm thickness of depth of groove, the upper surface of this high-barrier section bar be compounded with can with the material of high-barrier package bag 10 hot melts; The high-barrier section bar is cut into groove, and internal diameter is the aperture of the required groove of vacuum heat-insulating plate, and external diameter is than interior path length 0.2-30mm, and groove structure spare 40 is made and finished;
Step 2, choose the stacked core of suitable thickness, length and width according to required vacuum heat-insulating plate cut, according to the position of external diameter, thickness and the required recessing of groove structure spare 40 core is dug groove again, cut into the size of the internal diameter of groove structure spare 40 with core, the groove of groove structure spare 40 is filled; Hold the slotted eye of placing getter 30 on core successfully, slotted eye is driveed on the core in mesosphere, and the position is apart from sealing nearer position, limit 11, and the size of slotted eye promptly is the outside dimension of getter 30;
Step 3 places heat treatment furnace with the core of holding groove successfully and heats, and maximum temperature is 120-160 ℃; Be incubated 5-10min rise to numerical value 120-160 ℃ of setting when temperature after, open heat treatment furnace then core is taken out, obtain heat treatment after core standby;
Step 4 is put into the groove on the core after the heat treatment with groove structure spare 40, with core according to thickness requirement with the high-barrier package bag 10 of packing into of stacked sheet core, and with the getter 30 getter slotted eye of packing into.
Step 5 is put into the high-barrier package bag 10 that is placed with groove structure spare 40, getter 30 and core 20 in the vacuum sealer that pre-sets and to be vacuumized and to seal, and opens vacuum sealer at last, takes out vacuum heat-insulating plate;
Step 6, thermal fusion welding is carried out in groove structure spare 40 upper surfaces and the high-barrier package bag 10 of gained vacuum heat-insulating plate in the step 5, form welding layer 42, with the part excision of high-barrier package bag 10 in groove structure spare 40, take out the core of filling in the groove structure spare 40, obtain the vacuum heat-insulating plate that plate is worn groove.
The vacuum heat-insulating plate that a kind of plate of the present invention preparation is worn groove in use, can fit tightly with some non-planar surface equipment, avoid the projection on the planes such as riveting component, nut, screw, machinery, increased the utilization ratio of vacuum heat-insulating plate in small space, enlarge its using scope.
Embodiment two
With reference to Fig. 3, Fig. 4 and Fig. 6, a kind of plate of the present invention is worn the vacuum heat-insulating plate of groove, comprise high-barrier package bag 10, insulated core material 20 and groove structure spare 40, insulated core material 20 is arranged in high-barrier package bag 10 and the groove structure spare 40 formed vacuum-sealed cavity, is provided with getter 30 in the insulated core material 20.This vacuum heat-insulating plate adopts bonding method in the preparation, comprises the steps:
Step 1, the degree of depth of machined grooves as required, choose the high-barrier section bar of same thickness, as shown in Figure 6, the high-barrier section bar is cut into the square cylinder 44 of upper and lower equal opening, and the interior length of side is the length of side of the required recessing of vacuum heat-insulating plate, the long 0.2-30mm of the length of side in the outer side ratio, with high-isolation film 43 and square cylinder 44 lower surface bonds, groove structure spare 40 is made and is finished;
Step 2 cuts employed core by required size, according to the 40 outer seamed edge size recessings on the core relevant position of groove structure spare, and hold the slotted eye of placing getter 30 at the mesosphere core successfully near sealing 11 places, limit;
Step 3 places heat treatment furnace with the core of holding groove successfully and heats, and maximum temperature is 120-160 ℃; Be incubated 5-10min rise to numerical value 120-160 ℃ of setting when temperature after, open heat treatment furnace then core is taken out, obtain heat treatment after core standby;
Step 4, groove structure spare 40 is put into the groove on the core after the heat treatment, with core according to thickness requirement with the high-barrier package bag 10 of packing into of stacked sheet core, with groove structure spare 40 upper surface coated with adhesive 42, the upper surface of fitting at high-barrier package bag 10 and groove structure spare 40 applies certain pressure, it is bonding that it is fully fitted, and with the part excision of high-barrier package bag 10 in groove structure spare 40, the getter slotted eye of again getter 30 being packed into;
Step 5, the high-barrier package bag 10 that is placed with groove structure spare 40, getter 30 and core 20 put in the vacuum sealer that pre-sets vacuumize and seal, open vacuum sealer at last, take out vacuum heat-insulating plate, obtain the vacuum heat-insulating plate that plate is worn groove.
Above-mentioned only is two embodiments of the present invention, but design concept of the present invention is not limited thereto, and allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (10)
1. a plate is worn the vacuum heat-insulating plate of groove, comprise high-barrier package bag and insulated core material, this insulated core material is placed in this high-barrier package bag, it is characterized in that: recessing on the plate face of this vacuum heat-insulating plate, in this groove, groove structure spare is installed, this groove structure spare is the opening suitable for reading with high obstructing performance, the tubular section bar of end opening sealing, this groove structure spare and described high-barrier package bag welding or bond together constitute the vacuum-sealed cavity of holding described insulated core material jointly.
2. a kind of plate as claimed in claim 1 is worn the vacuum heat-insulating plate of groove, it is characterized in that: described groove structure spare is metal, glass, nylon, polyimide, polyethylene, polyvinyl alcohol, EVOH, PVDC or other high-barrier section bar.
3. a kind of plate as claimed in claim 1 is worn the vacuum heat-insulating plate of groove, it is characterized in that: described groove structure spare comprises the cylinder of the upper and lower equal opening that metal, glass, nylon, polyimide, polyethylene, polyvinyl alcohol, EVOH, PVDC or other high-barrier section bar are made, in the lower surface welding of this cylinder or be bonded with high-isolation film with the end opening sealing.
4. wear the vacuum heat-insulating plate of groove as claim 1 or 2 or 3 described a kind of plates, it is characterized in that: the direct and described high-barrier package bag welding or bonding of described groove structure spare upper surface, or by a melted material layer or layer of adhesive material and this high-barrier package bag welding or bonding.
5. wear the vacuum heat-insulating plate of groove as claim 1 or 2 or 3 described a kind of plates, it is characterized in that: described insulated core material is single core or composite core material, is provided with getter and/or sorbent in this core.
6. a kind of plate as claimed in claim 5 is worn the vacuum heat-insulating plate of groove, it is characterized in that: described composite core material is made up of the component of following weight proportion:
Super glass wool: centrifugal cotton=100: 1～50; Or
Super glass wool: mineral cotton=100: 1～60; Or
Super glass wool: centrifugal cotton: mineral cotton=100: 1～30: 1～50.
7. wear the vacuum heat-insulating plate of groove as claim 1 or 2 or 3 described a kind of plates, it is characterized in that: the wall thickness of described groove structure spare is 0.1-15mm.
8. wear the vacuum heat-insulating plate of groove as claim 1 or 2 or 3 described a kind of plates, it is characterized in that: the groove of described groove structure spare is cylindrical, cuboid shape, truncated cone, terrace with edge shape or various polymorphic structure.
9. a plate is worn the preparation method of the vacuum heat-insulating plate of groove, it is characterized in that: comprise the steps:
Step 1 according to the groove size of required band groove vacuum heat-insulating plate, is made groove structure spare, and be full of packing in this groove structure spare;
Step 2 cuts employed core by required size, according to size recessing on the core relevant position of groove structure spare, and hold the slotted eye of placing getter at the mesosphere core successfully near sealing limit place;
Step 3 places heat treatment furnace with the core of holding groove successfully and heats, and maximum temperature is 120-160 ℃; Be incubated 5-10min rise to numerical value 120-160 ℃ of setting when temperature after, open heat treatment furnace then core is taken out, obtain heat treatment after core standby;
Step 4 is put into the groove on the core after the heat treatment with groove structure spare, with core according to thickness requirement with the high-barrier package bag of packing into of stacked sheet core, and with the getter getter slotted eye of packing into.
Step 5 is put into the high-barrier package bag that is placed with groove structure spare, getter and core in the vacuum sealer that pre-sets and to be vacuumized and to seal, and opens vacuum sealer at last, takes out vacuum heat-insulating plate;
Step 6, thermal fusion welding is carried out in the groove structure spare upper surface and the high-barrier package bag of gained vacuum heat-insulating plate in the step 5, with the part excision of high-barrier package bag in groove structure spare, take out the packing of filling in the groove structure spare, obtain the vacuum heat-insulating plate that plate is worn groove.
10. a plate is worn the preparation method of the vacuum heat-insulating plate of groove, it is characterized in that: comprise the steps:
Step 1 according to the groove size of required band groove vacuum heat-insulating plate, is made groove structure spare;
Step 2 cuts employed core by required size, according to size recessing on the core relevant position of groove structure spare, and hold the slotted eye of placing getter at the mesosphere core successfully near sealing limit place;
Step 3 places heat treatment furnace with the core of holding groove successfully and heats, and maximum temperature is 120-160 ℃; Be incubated 5-10min rise to numerical value 120-160 ℃ of setting when temperature after, open heat treatment furnace then core is taken out, obtain heat treatment after core standby;
Step 4, groove structure spare is put into the groove on the core after the heat treatment, with core according to thickness requirement with the high-barrier package bag of packing into of stacked sheet core, with groove structure spare upper surface coated with adhesive, upper surface in high-barrier package bag and the applying of groove structure spare applies certain pressure, it is bonding that it is fully fitted, and with the part excision of high-barrier package bag in groove structure spare, the getter slotted eye of again getter being packed into;
Step 5, the high-barrier package bag that is placed with groove structure spare, getter and core put in the vacuum sealer that pre-sets vacuumize and seal, open vacuum sealer at last, take out vacuum heat-insulating plate, obtain the vacuum heat-insulating plate that plate is worn groove.
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| CN 201010151285 CN102102797B (en) | 2010-04-20 | 2010-04-20 | Vacuum insulation panel with groove on panel surface, and manufacturing method thereof |
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| CN 201010151285 CN102102797B (en) | 2010-04-20 | 2010-04-20 | Vacuum insulation panel with groove on panel surface, and manufacturing method thereof |
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| CN102102797A true CN102102797A (en) | 2011-06-22 |
| CN102102797B CN102102797B (en) | 2013-01-23 |
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Cited By (11)
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| CN102494226A (en) * | 2011-12-01 | 2012-06-13 | 蔡财木 | Vacuum insulation panel with embedded parts and preparation method for vacuum heat insulation plate |
| CN102628298A (en) * | 2012-04-10 | 2012-08-08 | 陈照峰 | Vacuum thermal insulation slab with pit on surface and preparation method of vacuum thermal insulation slab |
| CN102679092A (en) * | 2012-05-03 | 2012-09-19 | 周介明 | Vacuum insulation panel (VIP) with protruding structures on surface and manufacturing method thereof |
| CN104089146A (en) * | 2013-03-24 | 2014-10-08 | 苏州维艾普新材料股份有限公司 | Deformable composite insulation board and production method thereof |
| CN105149392A (en) * | 2015-09-22 | 2015-12-16 | 苏州维艾普新材料股份有限公司 | Method for knocking out groove in heterogenic vacuum insulation panel core material |
| CN105570619A (en) * | 2015-12-18 | 2016-05-11 | 滁州银兴新材料科技有限公司 | Method for manufacturing vacuum insulation board core material with low cost |
| CN105805487A (en) * | 2016-05-25 | 2016-07-27 | 合肥华凌股份有限公司 | Vacuum heat insulating plate and household appliance |
| CN105923103A (en) * | 2016-05-18 | 2016-09-07 | 浙江浦森新材料科技有限公司 | Special-shaped material combination heat preservation sleeve block used for ship |
| CN112284021A (en) * | 2019-07-24 | 2021-01-29 | 青岛海尔电冰箱有限公司 | Vacuum heat insulation plate, method for preparing vacuum heat insulation plate and refrigerator |
| WO2023197548A1 (en) * | 2022-04-15 | 2023-10-19 | 南京航空航天大学 | Porous sealing plate and preparation method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102494226A (en) * | 2011-12-01 | 2012-06-13 | 蔡财木 | Vacuum insulation panel with embedded parts and preparation method for vacuum heat insulation plate |
| CN102628298A (en) * | 2012-04-10 | 2012-08-08 | 陈照峰 | Vacuum thermal insulation slab with pit on surface and preparation method of vacuum thermal insulation slab |
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| CN105570619A (en) * | 2015-12-18 | 2016-05-11 | 滁州银兴新材料科技有限公司 | Method for manufacturing vacuum insulation board core material with low cost |
| CN105923103A (en) * | 2016-05-18 | 2016-09-07 | 浙江浦森新材料科技有限公司 | Special-shaped material combination heat preservation sleeve block used for ship |
| CN105805487A (en) * | 2016-05-25 | 2016-07-27 | 合肥华凌股份有限公司 | Vacuum heat insulating plate and household appliance |
| CN112284021A (en) * | 2019-07-24 | 2021-01-29 | 青岛海尔电冰箱有限公司 | Vacuum heat insulation plate, method for preparing vacuum heat insulation plate and refrigerator |
| WO2023197548A1 (en) * | 2022-04-15 | 2023-10-19 | 南京航空航天大学 | Porous sealing plate and preparation method therefor |
| GB2621902A (en) * | 2022-04-15 | 2024-02-28 | Univ Nanjing Aeronautics & Astronautics | Porous sealing plate and preparation method therefor |
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