CN109516778A - A kind of preparation process of double-layer ceramic vacuum insulating utensils - Google Patents
A kind of preparation process of double-layer ceramic vacuum insulating utensils Download PDFInfo
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- CN109516778A CN109516778A CN201811505443.0A CN201811505443A CN109516778A CN 109516778 A CN109516778 A CN 109516778A CN 201811505443 A CN201811505443 A CN 201811505443A CN 109516778 A CN109516778 A CN 109516778A
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- Prior art keywords
- venthole
- interlayer
- liner
- wall
- shell
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/24—Manufacture of porcelain or white ware
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
- A47J41/02—Vacuum-jacket vessels, e.g. vacuum bottles
- A47J41/022—Constructional details of the elements forming vacuum space
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
- C04B41/90—Coating or impregnation for obtaining at least two superposed coatings having different compositions at least one coating being a metal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a kind of preparation processes of double-layer ceramic vacuum insulating utensils, comprising the following steps: (1) prepares liner and shell with mold using ceramic material；(2) coating is carried out to outer casing inner wall, inner bladder outer wall；(3) in the reserved venthole vacuumized of outer casing bottom；(4) liner is put into shell, and liner oral area and housing mouth is bonded together by mud, and form interlayer between liner and shell, interlayer is connected to by venthole with outside；(5) it in outer shell outer wall and liner inner wall glazing, and is sintered；(6) inspiration piece is packed into interlayer from venthole, is then placed in vessel bottom in vaccum-pumping equipment downward, heated and to interlayer vacuum-pumping；(7) venthole is blocked, and taken out.Wall, inner bladder outer wall carry out coating to the present invention inside the shell, so that outside air cannot be introduced into interlayer, in this way, can get higher vacuum degree, heat insulation effect is good to interlayer vacuum-pumping by venthole.
Description
Technical field
The invention belongs to the preparation technical fields of insulating utensils, and in particular to a kind of system of double-layer ceramic vacuum insulating utensils
Standby technique.
Background technique
Insulating utensils are usually to add the container that vacuum layer is made by ceramics or stainless steel, and lid is arranged at top, and sealing is tight
Real, vacuum heat-insulating layer can make to delay to radiate mounted in liquid such as internal water, to achieve the purpose that heat preservation, such as vacuum cup, heat preservation
Bottle etc..Vacuum cup generally uses stainless steel vacuum cup at present, and this vacuum cup liner and shell are made of stainless steel, and
Stainless steel poor corrosion resistance can cause liner impaired, cause chromium contained by stainless steel, nickel, manganese with very polyoxybiontic solution reaction
Migration of element carrys out hidden danger to the health care belt of user.
Ceramics have lower thermal coefficient and cold-resistant thermal shock, and ceramic is smooth penetrating, beautiful, are production warmers
The good material of ware, commercially available thermal-insulation ceramic cup are mostly the structure of stainless steel and Ceramic Composite, and liner is ceramics, and shell is stainless
Steel, liner and shell are that the two-layer thermal-insulation ceramic cup of ceramics is less, on the one hand, double-layer ceramic warm-keeping vessel are usually whole at present
Body is fired, and when firing, the air expansion in hollow sandwich easily leads to quick-fried base, it is thus typically necessary to influence beauty there are air hole
It sees, and air hole causes interlayer that can not form vacuum, heat insulation effect is poor, and on the other hand, ceramics are internal to form increased number of stomata, even if
It is glazing, during the gas evolution that ceramic composition decomposes, volatilization generates, it is smaller more or less all can forms size in glaze layer
Pin hole can not obtain higher vacuum degree always in this way, when to interlayer vacuum-pumping, and vacuum degree hold time it is short so that
Two-layer thermal-insulation ceramic cup heat insulation effect is poor, service life is short.
Summary of the invention
It is an object of the invention to: higher vacuum, heat preservation can not be obtained for above-mentioned existing double-layer ceramic warm-keeping vessel
The problem of effect difference, the present invention provide a kind of preparation process of double-layer ceramic vacuum insulating utensils.
The technical solution adopted by the invention is as follows:
A kind of preparation process of double-layer ceramic vacuum insulating utensils, comprising the following steps:
(1) liner and shell are prepared with mold using ceramic material；
(2) coating is carried out to outer casing inner wall, inner bladder outer wall；
(3) in the reserved venthole vacuumized of outer casing bottom；
(4) liner is put into shell, and liner oral area and housing mouth is bonded together by mud, and liner and
Interlayer is formed between shell, interlayer is connected to by venthole with outside；
(5) it in outer shell outer wall and liner inner wall glazing, and is sintered；
(6) inspiration piece is packed into interlayer from venthole, is then placed in vessel bottom in vaccum-pumping equipment downward, heated
And to interlayer vacuum-pumping；
(7) venthole is blocked, and taken out.
Wall, inner bladder outer wall carry out coating to the present invention inside the shell first, fine and close, uniform coating are obtained, in this way, liner is put
When entering to be formed interlayer in shell, the inner wall of interlayer is covered by coating, and after glazing, sintering, outside air enters glaze layer pin hole, pottery
Stopped after porcelain internal porosity by coating, cannot be introduced into interlayer, in this way, can get higher by venthole to interlayer vacuum-pumping
Vacuum degree, heat insulation effect is good.In addition, integrally firing in compared with the existing technology to double-layer ceramic, the present invention passes through reserved
Air in venthole release jacket coating, it is not necessary to consider the problems of that the air expansion in interlayer leads to quick-fried base, also there is no need to stay
Stomata.The present invention also places inspiration piece in interlayer, and the length so that vacuum degree is held time prolongs the service life.
Further, in step (2), coating is carried out using the method for chemical plating, the coating is nickel layer.Chemical plating is one
Kind do not need to be powered, according to principle of oxidation and reduction, using strong reductant in the solution containing metal ion, by metal from
Son is reduced into metal and is deposited on the method that a variety of materials surface forms close coating.The present invention makes nickel by the method for chemical plating
Layer is deposited on outer casing inner wall and inner bladder outer wall, and the same platinum of nickel, palladium are the same, and when passivation can inhale a large amount of hydrogen, thus, nickel layer is in addition to right
Ceramic stomata is blocked to obtain high vacuum and be outside one's consideration, can also assisted inhalation piece absorb the gas in interlayer, to extend true
The time that reciprocal of duty cycle maintains.
Further, in step (3), the diameter of venthole is 4-8mm.In the prior art, the diameter of venthole is usually small
In 1mm, it is difficult to vacuumize, vacuum degree is lower, and the present invention increases the diameter of venthole, can get higher vacuum degree, improves and protects
Temp effect.
Further, in step (3), the diameter of venthole is 6mm.
Further, in step (5), sintering temperature is 1300-1400 DEG C.
Further, in step (6), inspiration piece is by biomass layer of charcoal and the spaced multilayered structure of palladium layers.It is existing
Inspiration piece is mostly made of palladium, and reguline metal palladium can absorb a large amount of hydrogen, and under room temperature, 1 volume palladium sponge can absorb 900 volume hydrogen
Gas, 1 volume colloid palladium can absorb 1200 volume hydrogen, and still, palladium is at 40~50 DEG C, and hydrogen, that is, big portion of absorption is released, this hair
Bright inspiration piece is that biomass carbon refers to be existed by the biomass rich in carbon by biomass layer of charcoal and the spaced multilayered structure of palladium layers
A kind of solid, porous particles object with height aromatization, rich in carbon generated under anaerobic or anoxia condition by Pintsch process
Matter, it, which contains, contains more oxygen-content active group, biomass with pore structure abundant, biggish specific surface area and surface
Charcoal has powerful adsorption capacity to gases such as CO, CO2, on the one hand, auxiliary palladium absorbs gas, and has to carbon nitrogen good
Fixed function is not easy to discharge again after absorption, in addition, when environment temperature is higher, when the hydrogen for causing palladium to absorb discharges, due to palladium
Layer structure is formed with biomass carbon, the hydrogen of release is largely adsorbed by biomass carbon, significantly reduces high ambient temperature to vacuum degree
Influence.
Further, in step (6), heating temperature is 350 DEG C -480 DEG C.The present invention vacuumizes at 350 DEG C, interlayer
Vacuum degree is up to 2.0 × 10-3Pa is warming up to 480 DEG C, and vacuum degree is up to 2.0 × 10-4Pa is much better than existing insulating utensils.
Further, it in step (7), is blocked using with the plugging block that venthole cooperates, plugging block is made of fine aluminium.
Venthole may be designed as bell shape, and diameter is gradually reduced from outside to inside, and fine aluminium is softer, not easy damaged shell, and block
Block is equipped with sealing ring, guarantees the leakproofness between plugging block and venthole.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, wall, inner bladder outer wall carry out coating to the present invention inside the shell first, fine and close, uniform coating are obtained, in this way, liner
Be put into shell formed interlayer when, the inner wall of interlayer is covered by coating, after glazing, sintering, outside air enter glaze layer pin hole,
Stopped after ceramic internal porosity by coating, cannot be introduced into interlayer, in this way, by venthole to interlayer vacuum-pumping, can get compared with
High vacuum degree, heat insulation effect are good；
2, the present invention passes through the air in reserved venthole release jacket coating, it is not necessary to consider that air when sintering in interlayer is swollen
Swollen the problem of leading to quick-fried base, also there is no need to stay air hole, product is beautiful；
3. coating of the present invention is nickel layer, can assisted inhalation piece absorb the gas in interlayer, vacuum degree holds time in 1-2
Year, substantially prolong the service life of insulating utensils.
Specific embodiment
All features disclosed in this specification can be with any other than mutually exclusive feature and/or step
Mode combines.
Embodiment 1
A kind of preparation process of double-layer ceramic vacuum insulating utensils, comprising the following steps:
(1) liner and shell are prepared with mold using ceramic material；
(2) using the method for chemical plating to outer casing inner wall, inner bladder outer wall nickel coating, nickel layer thickness is 0.5 μm；
(3) in the reserved venthole vacuumized of outer casing bottom, the diameter of venthole is 6mm；
(4) liner is put into shell, and liner oral area and housing mouth is bonded together by mud, and liner and
Interlayer is formed between shell, interlayer is connected to by venthole with outside；
(5) it in outer shell outer wall and liner inner wall glazing, and is sintered at 1300 DEG C；
(6) inspiration piece is packed into interlayer from venthole, is then placed in vessel bottom in vaccum-pumping equipment downward, heated
To 350 DEG C, and to interlayer vacuum-pumping, vacuum degree is 2.1 × 10-3Pa；Wherein, inspiration piece is by biomass layer of charcoal and palladium layers interval
The four-layer structure of setting, top and bottom are biomass layer of charcoal；
(7) venthole is blocked using the plugging block made of fine aluminium, venthole is designed as bell shape, and straight
Diameter is gradually reduced from outside to inside, and fine aluminium is softer, not easy damaged shell, and plugging block is equipped with 2 O-ring seals, guarantees plugging block
Leakproofness between venthole.95 DEG C of hot water is poured into device after using 1 year by double-layer ceramic warm-keeping vessel obtained
In ware, after 5h, water temperature is 43 DEG C, and heat insulation effect is good.
Embodiment 2
A kind of preparation process of double-layer ceramic vacuum insulating utensils, comprising the following steps:
(1) liner and shell are prepared with mold using ceramic material；
(2) using the method for chemical plating to outer casing inner wall, inner bladder outer wall nickel coating, nickel layer thickness is 0.6 μm；
(3) in the reserved venthole vacuumized of outer casing bottom, the diameter of venthole is 6mm；
(4) liner is put into shell, and liner oral area and housing mouth is bonded together by mud, and liner and
Interlayer is formed between shell, interlayer is connected to by venthole with outside；
(5) it in outer shell outer wall and liner inner wall glazing, and is sintered at 1350 DEG C；
(6) inspiration piece is packed into interlayer from venthole, is then placed in vessel bottom in vaccum-pumping equipment downward, heated
To 400 DEG C, and to interlayer vacuum-pumping, vacuum degree is 7 × 10-4Pa；Wherein, inspiration piece is to be set by biomass layer of charcoal and palladium layers interval
The four-layer structure set, top and bottom are biomass layer of charcoal；
(7) venthole is blocked using the plugging block made of fine aluminium, venthole is designed as bell shape, and straight
Diameter is gradually reduced from outside to inside, and fine aluminium is softer, not easy damaged shell, and plugging block is equipped with 2 O-ring seals, guarantees plugging block
Leakproofness between venthole.Double-layer ceramic warm-keeping vessel obtained are poured into 95 DEG C of hot water after using a year and a half
In vessel, after 5h, water temperature is 45 DEG C, and heat insulation effect is good.
Embodiment 3
A kind of preparation process of double-layer ceramic vacuum insulating utensils, comprising the following steps:
(1) liner and shell are prepared with mold using ceramic material；
(2) using the method for chemical plating to outer casing inner wall, inner bladder outer wall nickel coating, nickel layer thickness is 0.8 μm；
(3) in the reserved venthole vacuumized of outer casing bottom, the diameter of venthole is 6mm；
(4) liner is put into shell, and liner oral area and housing mouth is bonded together by mud, and liner and
Interlayer is formed between shell, interlayer is connected to by venthole with outside；
(5) it in outer shell outer wall and liner inner wall glazing, and is sintered at 1400 DEG C；
(6) inspiration piece is packed into interlayer from venthole, is then placed in vessel bottom in vaccum-pumping equipment downward, heated
To 480 DEG C, vacuum degree is 2.2 × 10-4Pa；Wherein, inspiration piece be by biomass layer of charcoal and the spaced four-layer structure of palladium layers,
Top and bottom are biomass layer of charcoal；
(7) venthole is blocked using the plugging block made of fine aluminium, venthole is designed as bell shape, and straight
Diameter is gradually reduced from outside to inside, and fine aluminium is softer, not easy damaged shell, and plugging block is equipped with 2 O-ring seals, guarantees plugging block
Leakproofness between venthole.95 DEG C of hot water is poured into device after using 2 years by double-layer ceramic warm-keeping vessel obtained
In ware, after 5h, water temperature is 48 DEG C, and heat insulation effect is good.
It is as described above the embodiment of the present invention.The present invention is not limited to the above-described embodiments, anyone should learn that
The structure change made under the inspiration of the present invention, the technical schemes that are same or similar to the present invention each fall within this
Within the protection scope of invention.
Claims (8)
1. a kind of preparation process of double-layer ceramic vacuum insulating utensils, which comprises the following steps:
(1) liner and shell are prepared with mold using ceramic material；
(2) coating is carried out to outer casing inner wall, inner bladder outer wall；
(3) in the reserved venthole vacuumized of outer casing bottom；
(4) liner is put into shell, and liner oral area and housing mouth is bonded together by mud, and liner and shell
Between form interlayer, interlayer is connected to by venthole with external；
(5) it in outer shell outer wall and liner inner wall glazing, and is sintered；
(6) inspiration piece is packed into interlayer from venthole, is then placed in vessel bottom in vaccum-pumping equipment downward, heated and right
Interlayer vacuum-pumping；
(7) venthole is blocked, and taken out.
2. a kind of preparation process of double-layer ceramic vacuum insulating utensils according to claim 1, which is characterized in that the step
Suddenly in (2), coating is carried out using the method for chemical plating, the coating is nickel layer.
3. a kind of preparation process of double-layer ceramic vacuum insulating utensils according to claim 1, which is characterized in that the step
Suddenly in (3), the diameter of venthole is 4-8mm.
4. a kind of preparation process of double-layer ceramic vacuum insulating utensils according to claim 3, which is characterized in that the step
Suddenly in (3), the diameter of venthole is 6mm.
5. a kind of preparation process of double-layer ceramic vacuum insulating utensils according to claim 1, which is characterized in that the step
Suddenly in (5), sintering temperature is 1300-1400 DEG C.
6. a kind of preparation process of double-layer ceramic vacuum insulating utensils according to claim 1, which is characterized in that the step
Suddenly in (6), inspiration piece is by biomass layer of charcoal and the spaced multilayered structure of palladium layers.
7. a kind of preparation process of double-layer ceramic vacuum insulating utensils according to claim 1, which is characterized in that the step
Suddenly in (6), heating temperature is 350 DEG C -480 DEG C.
8. a kind of preparation process of double-layer ceramic vacuum insulating utensils according to claim 1, which is characterized in that the step
Suddenly it in (7), is blocked using with the plugging block that venthole cooperates, plugging block is made of fine aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505443.0A CN109516778A (en) | 2018-12-10 | 2018-12-10 | A kind of preparation process of double-layer ceramic vacuum insulating utensils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505443.0A CN109516778A (en) | 2018-12-10 | 2018-12-10 | A kind of preparation process of double-layer ceramic vacuum insulating utensils |
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| CN109516778A true CN109516778A (en) | 2019-03-26 |
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| CN201811505443.0A Pending CN109516778A (en) | 2018-12-10 | 2018-12-10 | A kind of preparation process of double-layer ceramic vacuum insulating utensils |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190922571A (en) * | 1909-10-04 | 1910-02-24 | Frederick William Golby | Improvements in the Manufacture of Double-walled Vessels of Porcelain, China or other Ceramic Ware. |
| CN2242045Y (en) * | 1995-07-24 | 1996-12-11 | 国营第七○二厂 | Vacuum stainless steel cup |
| CN1388051A (en) * | 2001-05-28 | 2003-01-01 | 日本酸素株式会社 | Heat insulation container and its producing method |
| CN201160795Y (en) * | 2008-01-08 | 2008-12-10 | 王野 | Solar vacuum thermos cup |
| CN204146781U (en) * | 2014-08-09 | 2015-02-11 | 台州市泰澄电子科技有限公司 | A kind of Vacuuming structure of titanium vacuum cup |
-
2018
- 2018-12-10 CN CN201811505443.0A patent/CN109516778A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190922571A (en) * | 1909-10-04 | 1910-02-24 | Frederick William Golby | Improvements in the Manufacture of Double-walled Vessels of Porcelain, China or other Ceramic Ware. |
| CN2242045Y (en) * | 1995-07-24 | 1996-12-11 | 国营第七○二厂 | Vacuum stainless steel cup |
| CN1388051A (en) * | 2001-05-28 | 2003-01-01 | 日本酸素株式会社 | Heat insulation container and its producing method |
| CN201160795Y (en) * | 2008-01-08 | 2008-12-10 | 王野 | Solar vacuum thermos cup |
| CN204146781U (en) * | 2014-08-09 | 2015-02-11 | 台州市泰澄电子科技有限公司 | A kind of Vacuuming structure of titanium vacuum cup |
Non-Patent Citations (4)
| Title |
|---|
| 周光真: "《电窑烧制陶艺教程》", 31 July 2018, 上海科学技术出版社 * |
| 池至铣: "《陶瓷釉色料及装饰》", 30 November 2015, 中国建材工业出版社 * |
| 田庆华: "《金属元素大探秘》", 31 March 2018, 冶金工业出版社 * |
| 达道安: "《真空设计手册》", 31 July 2004, 国防工业出版社 * |
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