CN111972993A - Implementation method for improving heat conduction efficiency of glass heating container - Google Patents
Implementation method for improving heat conduction efficiency of glass heating container Download PDFInfo
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- CN111972993A CN111972993A CN202010780128.XA CN202010780128A CN111972993A CN 111972993 A CN111972993 A CN 111972993A CN 202010780128 A CN202010780128 A CN 202010780128A CN 111972993 A CN111972993 A CN 111972993A
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- 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
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
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- 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
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21166—Constructional details or accessories
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- 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
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
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- 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
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
- A47J36/04—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay the materials being non-metallic
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/003—General methods for coating; Devices therefor for hollow ware, e.g. containers
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/06—Surface treatment of glass, not in the form of fibres or filaments, by coating with metals
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/17—Deposition methods from a solid phase
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Cookers (AREA)
Abstract
The invention relates to a realization method for improving the heat conduction efficiency of a glass heating container, which is characterized by comprising the following steps: coating a coating on the bottom surface of the glass heating container, or coating a coating after the bottom surface of the glass heating container is ground flat, so that the coating fills the unevenness of the bottom surface of the glass heating container, and the flatness tolerance of the bottom surface of the glass heating container is 0.02-0.20 mm; the flatness tolerance of the bottom surface of the glass cup is 0.02mm-0.20mm or 0.03-0.10mm by coating the coating on the bottom surface of the glass heating container, so that the bottom surface of the glass cup can be attached to the surface of the heating plate of the heating base to the maximum extent, which has the similar flatness tolerance requirement, and the heating efficiency of the glass heating container is improved obviously.
Description
The technical field is as follows:
the invention relates to a realization method for improving the heat conduction efficiency of a glass heating container, which is mainly used for heating water and is used as applied products such as milk conditioners, health preserving kettles, electric heating kettles, tea boiling devices and the like.
Background art:
the existing kettles on the market at present have a variety of forms, such as stainless steel kettles, glass kettles, IH heating milk mixing kettles, full glass kettles and the like, but the kettles all have more or less defects:
heating components of stainless steel kettles and glass kettles are arranged at the bottom of a kettle body, the bottom of the kettle body is generally made of stainless steel materials which are contacted with water, the surface of the kettle body needs to be polished, and the polishing process is difficult to avoid dust brought in after polishing, so that rusts with different degrees can be caused to appear in the heating process to pollute the water; since the water is generally weakly alkaline, it contains Ca (HCO)3)2Dirt such as incrustation scale and the like generated after the kettle body is heated is easy to deposit on the heating plate, the kettle body cannot be completely put into water for thorough cleaning, and the drinking water quality cannot be guaranteed due to the dirt carried by the kettle body all the year round.
The IH heating milk mixing device is characterized in that a magnetic conductive material is fixed on the bottom of the glass cup body, so that liquid in the glass cup is electromagnetically heated through the heating base with the electromagnetic heating function, and the IH heating milk mixing device has the following defects: electromagnetic radiation can be generated during electromagnetic heating, the nursing device can bring physical injury to pregnant women and infants, is not suitable for the requirements of the nursing device in the field of mother and infant products on human health, and is high in manufacturing cost by adopting the electromagnetic heating technology, and restriction on wide use and sale of products is generated.
As another example, the whole glass kettle is made of whole glass, so that the whole glass kettle is beautiful and is purchased by customers due to the love to the appearance of the kettle, but tests show that the whole glass kettle needs more than one hour for heating 1200ml of water from 25 ℃ to 100 ℃, and the heating efficiency is extremely low.
The electric ceramic furnace is used for heating by utilizing an electric ceramic furnace like the existing full-glass kettle, the surface heating temperature of the electric ceramic furnace is up to more than 500 ℃, the surface emits strong red light radiation, the milk regulator is particularly not suitable for the requirements of the milk regulator in the field of mother and infant products on the health of human bodies under the requirement of dim light at night, the heat efficiency is low, and the temperature can not be accurately controlled.
The invention content is as follows:
in view of the above-mentioned shortcomings of the prior art, the present invention provides a method for improving the heat conduction efficiency of a glass heating container, which is beneficial to improving the heat conduction efficiency of the glass heating container and shortening the heating time.
The invention relates to a realization method for improving the heat conduction efficiency of a glass heating container, which is characterized in that: and (3) coating a coating on the bottom surface of the glass heating container, or coating a coating after the bottom surface of the glass heating container is ground flat, so that the coating fills the unevenness of the bottom surface of the glass heating container, and the flatness tolerance of the bottom surface of the glass heating container is 0.02-0.20 mm.
Further, the coating is a high-temperature resistant ink coating with heat-conducting metal powder.
Further, the coating is a high-temperature resistant ink coating containing metal powder and graphene powder.
Further, the coating is a heat-conducting silica gel coating and a high-temperature-resistant ink coating.
Further, before the bottom surface of the glass heating container is coated with the coating, the bottom surface of the glass heating container is ground to be flat, the flatness tolerance of the bottom surface of the glass heating container is smaller than 0.20mm after the bottom surface of the glass heating container is ground to be flat, and the flatness tolerance of the bottom surface of the glass heating container is smaller than 0.10mm after the coating is coated.
Furthermore, the flatness tolerance of the bottom surface of the glass heating container is 0.03mm-0.1mm through coating.
Further, the thickness of the coating is 0.005-0.5 mm.
The invention relates to a realization method for improving the heat conduction efficiency of a glass heating container, which is characterized in that: preparing a glass heating container blank according to the shape requirement in advance, brushing or screen-printing a coating with heat-conducting metal powder on the bottom surface of the glass heating container blank to fill the place with uneven bottom, so that the tolerance of the uneven bottom surface reaches 0.02mm-0.20mm or 0.03mm-0.1mm, and then baking and curing the glass heating container blank with the coating at high temperature to obtain the requirements of high wear resistance and high adhesive force.
Further, in the screen printing process, firstly, the high-temperature resistant ink with heat-conducting metal powder is primarily printed on the bottom surface of the glass cup bottom by using a 100-plus-200-mesh screen, so that the lower part of the cup bottom is filled with the ink, after the cup bottom is primarily dried, the 250-plus-500-mesh screen is replaced, and then screen printing is carried out on the bottom surface of the glass cup bottom, so that uneven parts are printed smoothly to meet the requirement of unevenness tolerance; baking the glass heating container blank with the coating in a high-temperature oven (furnace) at the temperature of more than 500 ℃ for 30-90 minutes; performing an adhesion test, a cold and hot impact test and a heat conducting performance test after the coating is cured; and (3) testing the adhesive force: firstly, 100 lattices with the size of 2 x 2mm are scribed by using an art designing knife or a hundred lattice knife, the surface of the scribed lattice is cleaned by using a brush after scribing, then an adhesive tape is pasted on the surface of the lattice, an eraser is used for wiping the surface of the adhesive tape flat, the adhesive tape is pulled after the adhesive tape is placed for 3-5min at room temperature, one end of the adhesive tape and the coating surface form a 90-degree right angle when the adhesive tape is pulled, the adhesive tape is quickly torn off, and the 3 times are repeated to ensure that no falling coating on the adhesive tape is qualified; and (3) testing cold and hot impact: under the condition of room temperature, the glass heating container is placed on the 280 ℃ surface of the heating base in an empty cup state for 10min and then taken out, and then the glass heating container is immediately put into an ice-water mixture with the temperature of 0 ℃ for 1min, which is 1 test period, and 30 test periods are cumulatively completed, so that the surface of the coating of the glass heating container is free of bubbles, cracks, falling off and color difference and is qualified; testing the heat conduction performance: heating with the power of more than or equal to 700W of the heating base, and heating 1200ml of water at the temperature of 25 ℃ to 100 ℃ for less than or equal to 12 minutes to be qualified.
Further, the coating with the heat-conducting metal powder is replaced by a high-temperature-resistant ink coating containing metal powder and graphene powder, and the high-temperature-resistant ink coating containing the metal powder and the graphene powder is prepared by the following steps of 1) diluting sodium dodecyl sulfate with water according to the volume ratio of 1:500, 2) adding a proper amount of graphene into the diluted liquid for dispersion, and 3) adding the dispersed graphene liquid into the high-temperature-resistant ink; 4) adding metal powder with particles of 800nm into the debugged graphene-containing ink, wherein the mass ratio of the metal powder to the ink is not less than 1: 4; in the screen printing process, firstly, 100-plus-200-mesh screen printing ink is used for primarily printing ink on the bottom surface of the glass cup, so that the lower part of the cup bottom is filled with the ink, after primary drying, 250-plus-500-mesh screen printing is used for performing screen printing on the bottom surface of the glass cup, and uneven parts are printed smoothly to meet the requirement of unevenness tolerance.
Further, the coating with the heat-conducting metal powder is replaced by coating and printing the heat-conducting silica gel and the high-temperature-resistant ink coating, and the coating and printing steps of the heat-conducting silica gel and the high-temperature-resistant ink coating are as follows: firstly printing heat-conducting silica gel on the bottom surface of the glass cup by using a 100-mesh and 200-mesh screen, filling the heat-conducting silica gel at the lower part of the cup bottom, after the heat-conducting silica gel is firstly dried, replacing the 250-mesh and 500-mesh screen, then carrying out screen printing on the bottom surface of the glass cup bottom to ensure that the uneven part is printed smoothly so as to meet the requirement of unevenness tolerance, then baking and curing in a high-temperature oven or furnace at about 200 ℃, wherein the curing depth is less than or equal to 0.5mm, then screen printing high-temperature hardening ink on the heat-conducting silica gel coating by using the screen with the mesh number of 250-mesh and 500-mesh screen, and finally baking and curing in a high-temperature oven or furnace at about.
Further, before a coating with heat-conducting metal powder, a high-temperature-resistant ink coating with metal powder and graphene powder or heat-conducting silica gel and the high-temperature-resistant ink coating are coated and printed on the bottom surface of the glass heating container blank, the bottom surface of the glass heating container blank is ground and flattened by water.
The flatness tolerance of the bottom surface of the glass cup bottom is 0.02mm-0.20mm or 0.03-0.10mm by coating and printing the coating on the bottom surface of the glass heating container, so that the bottom surface of the glass cup bottom can be attached to the surface of a heating plate of a heating base to the maximum extent, the heating efficiency of the heating base is improved obviously, and the heating container can be used for holding 1200ml of water and heating the water from 25 ℃ to 100 ℃ within 12 minutes by testing under the conditions of the same heating power and the like as that of the existing all-glass kettle, and the heating efficiency is improved obviously; the whole body of the glass heating container prepared by the method is made of glass, and the glass heating container does not have any electronic element, and can be immersed into water to be cleaned, so that the dirt on the glass heating container can be completely removed, and the drinking water quality of people is ensured; meanwhile, the glass heating container does not generate electromagnetic radiation by using an electromagnetic heating technology or infrared radiation generated by an electric ceramic furnace, and does not have health influence on human bodies, and the glass heating container is simple to manufacture, low in cost and easy to sell, popularize and use; in addition this application is through heating base heating plate and the heat-conduction that the bottom of cup is the face contact, and heat conduction area is big and even, has solved current heating kettle or transfer the milk ware at the water boiling in-process, because of heating inhomogeneous production air blasting arouses the problem of too big noise.
Description of the drawings:
FIG. 1 is a schematic perspective view of a high efficiency heat conductive glass heating vessel according to the present invention;
FIG. 2 is a cross-sectional view of one embodiment of FIG. 1;
FIG. 3 is a cross-sectional view of another embodiment of FIG. 1;
FIG. 4 is an enlarged view of section A of FIG. 2;
FIG. 5 is a cross-sectional view of the use state of FIG. 2;
FIG. 6 is a perspective view of another embodiment heating base;
FIG. 7 is a cross-sectional view of the base of FIG. 6 with a heating vessel of the present application positioned thereon;
fig. 8 and 9 are cross-sectional views of alternative embodiments of fig. 1 and 3.
The specific implementation mode is as follows:
the method of the present invention is further described in detail with reference to the following examples, and it should be specifically noted that the scope of the present invention should include, but is not limited to, the technical contents disclosed in the examples.
The main reason that the pure glass container as a water boiler cannot be widely popularized is that the heating efficiency of the water boiler of the existing pure glass container is extremely low, namely, as mentioned in the background art, the time of heating 1200ml of water from 25 ℃ to 100 ℃ needs more than 40-60 minutes, but the application overcomes the problem which cannot be overcome for a long time and is a revolutionary product; the applicant finds through research that the reason that the heating efficiency of the glass container adopting the heating pipe arranged on the bottom surface is low is that the surface of the bottom surface of the glass container is high, low and extremely uneven in microscopic view, the contact between the heating pipe and the bottom surface of the glass container is line contact, the contact area is extremely effective, the heating efficiency is low and uneven, and even if the heating plate constructed by the application is used as a heating source, the contact area between the heating pipe and the bottom surface of the glass container is still limited, and the heating efficiency is still low.
The high-efficiency heat-conduction glass heating container manufactured by the method comprises a glass cup body 1 and a glass cup bottom 2 integrated with the glass cup body, wherein a coating 4 is coated on the bottom surface of the glass heating container (the bottom surface of the glass cup bottom 2) so as to fill the unevenness of the bottom surface of the glass heating container, the flatness tolerance of the bottom surface of the glass heating container is 0.02-0.20mm, the flatness tolerance of the bottom surface 3 of the glass cup bottom 2 is 0.03-0.1 mm or 0.03-0.05 mm, the thickness of the glass cup bottom 2 of the embodiment is 1.0-2.2 mm, 1.2-2.0mm is preferably adopted, the adoption of the flatness tolerance of the bottom surface of the glass cup bottom and the thickness of the glass cup bottom is a preferred scheme obtained by infinite tests, the flatness tolerance of the bottom surface of the glass cup is larger, the heating efficiency of the glass cup is worse, the flatness tolerance is smaller, the processing difficulty is higher, a large number of defective products are generated, thereby increasing the manufacturing cost.
In order to realize the flatness tolerance of the bottom surface 3 of the glass cup bottom 2, the requirement of the flatness tolerance of the bottom surface of the glass cup bottom is realized by coating and printing a high-temperature resistant ink coating with heat-conducting metal powder, a high-temperature resistant ink coating with metal powder and graphene powder, or heat-conducting silica gel and a high-temperature resistant ink coating on the bottom surface of the glass cup bottom; or after the flatness tolerance of the bottom surface of the glass cup is ground flat by a water mill, a high-temperature-resistant ink coating with heat-conducting metal powder, a high-temperature-resistant ink coating with metal powder and graphene powder, or heat-conducting silica gel and a high-temperature-resistant ink coating are coated and printed to meet the flatness tolerance requirement.
The specific process of coating the bottom surface of the glass cup with the coating 4 with the heat-conducting metal powder comprises the following steps:
when the glass heating container is manufactured, a blank body is manufactured according to the shape requirement, the thickness is controlled to be 1.2-2.0mm by adjusting the air blowing amount during glass blowing, the flatness tolerance of the bottom surface of the glass heating container blank formed by blowing is below 0.30mm, then the place with uneven bottom is filled by brushing or silk-screen printing a coating with heat-conducting metal powder on the bottom surface of the glass heating container blank, the unevenness tolerance of the bottom surface reaches 0.03mm-0.1mm, and then the glass heating container blank with the coating obtains the requirements of high wear resistance and high adhesive force after being baked and cured at high temperature.
In the above steps, after the glass heating container blank is formed by blowing, the unevenness tolerance of the cup bottom is measured by using a plug gauge; in the silk-screen printing process, firstly, printing ink is primarily printed on the bottom surface of the glass cup bottom by using a 200-mesh screen, so that the lower part of the glass cup bottom is filled with the ink, after the ink is primarily dried, the 400-mesh screen is replaced, and then, the silk-screen printing is carried out on the bottom surface of the glass cup bottom, so that uneven parts are printed smoothly to meet the requirement of unevenness tolerance; the glass heating container blank with the coating is baked in a high-temperature oven or furnace with the temperature of more than 500 ℃ for 60 minutes.
The coating 4 with the heat-conducting metal powder can be materials such as high-temperature resistant printing ink and high-temperature resistant printing ink containing the heat-conducting metal powder (the metal powder in the high-temperature resistant printing ink and the high-temperature resistant printing ink needs to be fully and uniformly stirred by a stirrer, the weight of the metal powder in the high-temperature resistant printing ink and the like is not less than 20 percent during mixing and stirring), the materials such as the high-temperature resistant printing ink and the like can be purchased from the market, the heat-conducting metal powder (the weight is not less than 20 percent of the total weight after configuration) is doped in the materials, and the thickness of the coating 4 is 0.005-; the heating efficiency can be improved by brushing the coating 4 with the heat-conducting metal powder on the bottom surface 3 of the glass cup bottom 2, and the metal powder can be metal aluminum powder, metal copper powder and the like.
The coating with the heat-conducting metal powder in the process can be replaced by a high-temperature-resistant ink coating containing metal powder and graphene powder, and the high-temperature-resistant ink coating containing the metal powder and the graphene powder is prepared by the following steps of 1) diluting sodium dodecyl sulfate with water according to the volume ratio of 1:500, 2) adding a proper amount of graphene into diluted liquid for dispersing (the mass of the graphene accounts for 5% -10% of the total mass of the finished high-temperature-resistant ink), and diluting to fully disperse the graphene, and 3) adding the dispersed graphene liquid into the high-temperature-resistant ink; 4) adding metal powder (metal powder can be metal aluminum powder, metal copper powder and the like) with particles of 800nm into the debugged graphene-containing ink, wherein copper powder is usually used, and the mass ratio of the metal powder to the ink is not lower than 1: 4; in the screen printing process, firstly, 100-plus-200-mesh screen printing ink is used for primarily printing ink on the bottom surface of the glass cup, so that the lower part of the cup bottom is filled with the ink, after primary drying, 250-plus-500-mesh screen printing is used for performing screen printing on the bottom surface of the glass cup, and uneven parts are printed smoothly to meet the requirement of unevenness tolerance.
The coating with the heat-conducting metal powder in the process is replaced by coating and printing the heat-conducting silica gel and the high-temperature-resistant ink coating, and the coating and printing steps of the heat-conducting silica gel and the high-temperature-resistant ink coating are as follows: firstly printing heat-conducting silica gel on the bottom surface of the glass cup by using a 100-mesh and 200-mesh screen, filling the heat-conducting silica gel at the lower part of the cup bottom, after the heat-conducting silica gel is firstly dried, replacing the 250-mesh and 500-mesh screen, then carrying out screen printing on the bottom surface of the glass cup bottom to ensure that the uneven part is printed smoothly so as to meet the requirement of unevenness tolerance, then baking and curing in a high-temperature oven or furnace at about 200 ℃, wherein the curing depth is less than or equal to 0.5mm, then screen printing high-temperature hardening ink on the heat-conducting silica gel coating by using the screen with the mesh number of 250-mesh and 500-mesh screen, and finally baking and curing in a high-temperature oven or furnace at about.
The high-temperature resistant ink is purchased from high-temperature resistant ink produced by Junxiang printing equipment Co., Ltd, Suzhou;
the heat-conducting silicone (heat-conducting silicone grease) is purchased from the heat-conducting silicone grease produced by Boneng Yongxin electronics Limited of Shenzhen city;
high temperature hardening inks are purchased from inks manufactured by Suzhou Baulong inks Co., Ltd. similar to the previous high temperature resistant inks, and may be of the same brand.
The high temperature resistant ink, the heat conductive silica gel and the high temperature hardening ink are materials widely used in the prior art, and are only examples and not limited.
In the above printing process, before the coating 4 is printed (the coating refers to a coating with heat-conducting metal powder, a coating with high-temperature ink containing metal powder and graphene powder, or a coating with heat-conducting silica gel and a coating with high-temperature ink), the bottom surface of the glass heating container blank is ground and leveled with water, and the thickness of the glass heating container blank is 1.2-2.5mm, the flatness tolerance of the bottom surface of the blank is below 0.5mm, after the glass heating container blank is ground and leveled with water, the thickness of the bottom of the glass cup is 1.0-1.7 mm, the flatness tolerance of the bottom surface is below 0.2mm, and after the coating 4 is ground and printed, the flatness tolerance of the bottom surface is below 0.1 mm.
The bottom surface of the blank is ground by water before the coating layer 4 is coated, the thickness of the blank for manufacturing is 1.2-2.5mm, the flatness tolerance of the bottom surface of the blank can be below 0.5mm, the manufacturing requirement is easy to realize, the reject ratio of the blank manufacturing is reduced, and the manufacturing cost is reduced (although the grinding process is increased, the flatness tolerance of 0.2mm is easy to realize primarily through grinding, and the blank for manufacturing is difficult to reach the flatness tolerance of the bottom surface of the blank within 0.3 mm).
The coatings and the manufacturing process thereof can meet and realize the requirement on the flatness tolerance of the bottom surface of the glass cup, thereby realizing the improvement of the heating efficiency and the heat conduction efficiency of the glass heating container.
The glass heating container produced and molded by the coatings can be subjected to adhesion test, cold and hot impact test and heat conductivity test after the coatings are cured:
wherein the adhesion test comprises the following steps: firstly, 100 lattices with the size of 2 x 2mm are scribed by using an art designing knife or a hundred lattice knife, the surface of the scribed lattice is cleaned by using a brush after scribing, then an adhesive tape is pasted on the surface of the lattice, the surface of the adhesive tape is smoothly wiped by using an eraser (the adhesive tape is firmly adhered to the surface of the bottom of a cup), the adhesive tape is pulled after being placed for 3-5min at room temperature, one end of the adhesive tape forms a 90-degree right angle with the surface of a coating when the adhesive tape is pulled, the adhesive tape is quickly torn off, and the 3 times are repeated until the coating without any falling off on the adhesive tape is qualified;
wherein, the cold and hot impact test: under the condition of room temperature, the glass heating container is placed on the 280 ℃ surface of the heating base in an empty cup state for 10min and then taken out, and then the glass heating container is immediately put into an ice-water mixture with the temperature of 0 ℃ for 1min, which is 1 test period, and 30 test periods are cumulatively completed, so that the surface of the coating of the glass heating container is free of bubbles, cracks, falling off and color difference and is qualified;
wherein the heat conduction performance test: heating with the power of more than or equal to 700W of the heating base, and heating 1200ml of water at the temperature of 25 ℃ to 100 ℃ for less than or equal to 12 minutes to be qualified.
Example 1 of the construction of the bottom of a glass container, the bottom of the glass cup is entirely planar, and as described above, the cup has a thickness of 1.2 to 2.0mm, and the flatness tolerance of the bottom after the coating is applied is 0.02 to 0.20mm, preferably 0.03 to 0.1mm, or 0.03 to 0.05 mm.
The bottom of the glass container is constructed in the embodiment 2, the glass bottom is provided with an upper boss 5, the upper boss 5 is used for accommodating a temperature sensor 6 protruding on the surface of a heating base, the thickness of the bottom at the position of the upper boss 5 is basically equivalent to that of the other positions, and is 1.2-2.0, and the flatness tolerance of the bottom of the glass bottom is 0.02-0.20mm, preferably 0.03-0.1 mm, or 0.03-0.05 mm after the coating is applied to the bottom of the glass bottom except the bottom at the position of the upper boss.
The glass cup bottom 2 and the glass cup body 1 of the two embodiments are in round corner transition, and high boron glass can be adopted;
the edge of the bottom 2 of the glass cup is a fillet, the R degree of the fillet is 2.0-6.0mm, preferably 4.5 mm, the diameter of the largest part of the bottom of the glass cup in the bottom construction example 1 of the glass container is 137.68 mm, the diameter of the whole plane is 128.68 mm when the R degree of the fillet is 4.5 mm, the thickness of the bottom of the glass cup is 1.5 mm, the flatness tolerance of the bottom is 0.05mm, the glass container with the size is heated at the power of a heating base which is more than or equal to 700W, and the time for heating 1200ml of water at 25 ℃ to 100 ℃ is less than or equal to 12 minutes.
In the bottom structure example 2 of the glass container, the diameter of the largest part of the glass cup bottom can be 137.68 mm, the diameter of the whole plane is 128.68 mm when the R degree of the fillet is 4.5 mm, the thickness of the glass cup bottom is 1.5 mm, the upper boss 5 is a cone frustum, the diameter of the upper bottom is 12.63 mm, the height is 12.0 mm, the taper is 37.7 degrees, the flatness tolerance of the bottom surface is 0.05mm, the glass container with the size is heated at the power of the heating base being more than or equal to 700W, and the time for heating 1200ml of water at the temperature of 25 ℃ to 100 ℃ is less than or equal to 13 minutes.
The heating plate 7 of the heating base 9 associated with the glass container bottom structure of embodiment 1 is also a whole plane, and the temperature sensor 6 for sensing temperature is provided at a side position of the glass container (as shown in fig. 5).
The heating plate middle part of the heating base matched with the temperature sensor in the glass container bottom surface structure embodiment 2 is provided with a boss 8, the boss is provided with the temperature sensor 6 (shown in figure 6), the temperature sensor 6 is very close to the installation position of the heating plate 7, so that the temperature sensor is prevented from being influenced by the temperature of the heating plate (more than 200 ℃), the boss 8 needs to be arranged, the temperature sensor is arranged on the boss, the temperature sensor 6 is separated from the heating plate 7, the boss is arranged in the middle of the heating plate, the boss 5 needs to be arranged at the bottom of the glass cup of the embodiment, the boss 8 is avoided, the boss can be a pipe made of temperature-resistant plastics and other materials, the pipe is arranged in a through hole in the center of the heating plate, the temperature sensor 6 is arranged at the upper end of the boss, and a lead of the temperature sensor penetrates.
The temperature sensors 6 of the two embodiments can be NTC temperature sensors or infrared sensors, the NTC temperature sensors are NTC resistance thermosensitive temperature sensors widely used in the market, and when the temperature sensors are used, the temperature sensors are in contact with the surface of an object to be measured (namely, a glass heating container in the application), the temperature contact is more accurate, the cost is low, the infrared sensors are also temperature sensing elements of the kettle, the temperature sensors are not in contact with the surface of the object to be measured, and the cost is higher.
Both embodiments may also be provided with a coating 4 with a heat conducting metal powder, ensuring that the flatness tolerance of the bottom surface after brushing the coating is also 0.02-0.20mm, preferably 0.03-0.1 mm, or 0.03-0.05 mm.
The flatness tolerance of the surface of the heating plate contacted with the bottom surface of the glass container cup bottom is also 0.02-0.20mm, the preferable flatness tolerance is 0.03-0.1 mm, or 0.03-0.05 mm, the smoothness is more than 5 grade, and the flatness tolerance of the surface of the heating plate meets the requirement of the bottom surface of the glass cup bottom, so that the heat of the heating plate can be better transmitted to the glass cup bottom, and the heating efficiency is ensured; the heating plate of the heating base meets the requirement of flatness tolerance of the cup bottom, so that the heat conduction of surface contact is realized, the heat conduction area is large and uniform, fine bubbles can be distributed on the inner surface of the glass cup bottom in the heating process, the noise generated during explosion of the fine bubbles is small, and an electric heating pipe of the existing heating kettle or milk regulator is fixed at the cup bottom in a circular ring shape, so that the heating is concentrated in one circle of the circular ring, the generated bubbles are also concentrated in one circle of the circular ring, and in the water boiling process, the air explosion of the large bubbles generated in one circle of the circular ring due to uneven heating can cause overlarge noise; this application is the heat-conduction of face and face through heating plate and bottom of cup, and heat conduction area is big and even, is favorable to reducing the air blasting noise of boiling water bubble.
In addition, in order to reduce the damage of the glass heating container, a diameter-reduced step platform M (formed when the blank is manufactured) can be manufactured on the edge of the cup bottom, as shown in fig. 8, a silica gel ring can be sleeved on the outer edge of the diameter-reduced step platform, and the subsequent manufacturing process of the cup bottom can be the same as that described above.
In order to design reasonably, the heating plate can be an aluminum substrate and an electric heating pipe which is arranged on the lower surface of the aluminum substrate and is spirally arranged, and the upper surface of the aluminum substrate is attached to the bottom surface 3 of the high-efficiency heat-conduction glass heating container; the thickness of the aluminum substrate is more than or equal to 2.5mm, the surface of the aluminum substrate is mirror-polished, the flatness tolerance is preferably less than or equal to 0.05mm, and the heating can be more uniform by the spirally arranged electric heating pipe, or the heating plate comprises a die-cast aluminum plate and a teflon sprayed on the surface of the formed electric heating pipe, and the upper surface of the die-cast aluminum plate is attached to the bottom surface of the high-efficiency heat-conduction glass heating container; the electric heating pipe is a conventional heating element, but is usually coiled into a circular ring shape at present and fixed on a heating body, and has the problem of uneven heating, namely the temperature of the circular ring shape near the electric heating pipe is high, and the temperature of the electric heating pipe far away from the circular ring shape is low, so that the condition of uneven heating can be generated, and air blasting of large bubbles can be generated, and overlarge noise is caused, but the electric heating pipe which is spirally arranged in the application can ensure the uniform temperature of the whole aluminum substrate although the length of the electric heating pipe is slightly increased, and is also beneficial to reducing the air blasting noise of water boiling bubbles, the electric heating pipe can be sunk into a spiral channel on the lower surface of the aluminum substrate (the contact surface between the electric heating pipe and the aluminum substrate is increased, the heat conduction effect is improved), or is directly arranged on the planar lower surface of the electric heating pipe, the contact diameter between the bottom surface 3 of the, thereby securing a surface contact area.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (10)
1. The implementation method for improving the heat conduction efficiency of the glass heating container is characterized by comprising the following steps of: and (3) coating a coating on the bottom surface of the glass heating container, or coating a coating after the bottom surface of the glass heating container is ground flat, so that the coating fills the unevenness of the bottom surface of the glass heating container, and the flatness tolerance of the bottom surface of the glass heating container is 0.02-0.20 mm.
2. The method of claim 1, wherein the heat transfer efficiency of the glass heating vessel is improved by: the coating is a high-temperature resistant ink coating with heat-conducting metal powder.
3. The method of claim 1, wherein the heat transfer efficiency of the glass heating vessel is improved by: the coating is a high-temperature-resistant ink coating containing metal powder and graphene powder.
4. The method of claim 1, wherein the heat transfer efficiency of the glass heating vessel is improved by: the coating is a heat-conducting silica gel coating and a high-temperature-resistant printing ink coating.
5. The method of claim 1, wherein the heat transfer efficiency of the glass heating vessel is improved by: the bottom surface of the glass heating container is ground by water before being coated with a coating, the flatness tolerance of the bottom surface of the glass heating container is smaller than 0.20mm after being ground by water, and the flatness tolerance of the bottom surface of the glass heating container is smaller than 0.10mm after being coated with the coating.
6. The method of claim 1, wherein the heat transfer efficiency of the glass heating vessel is improved by: the flatness tolerance of the bottom surface of the glass heating container is 0.03mm-0.1mm through the coating; the thickness of the coating is 0.005-0.5 mm.
7. The implementation method for improving the heat conduction efficiency of the glass heating container is characterized by comprising the following steps of: preparing a glass heating container blank according to the shape requirement in advance, brushing or screen-printing a coating with heat-conducting metal powder on the bottom surface of the glass heating container blank to fill the place with uneven bottom, so that the tolerance of the uneven bottom surface reaches 0.02mm-0.20mm or 0.03mm-0.1mm, and then baking and curing the glass heating container blank with the coating at high temperature to obtain the requirements of high wear resistance and high adhesive force.
8. The method of claim 7, wherein the heat transfer efficiency of the glass heating vessel is improved by: during the silk-screen printing process, firstly, the high-temperature resistant ink with heat-conducting metal powder is primarily printed on the bottom surface of the glass cup bottom by using a 100-plus-200-mesh screen, so that the lower part of the glass cup bottom is filled with the ink, after the glass cup bottom is primarily dried, the 250-plus-500-mesh screen is replaced, and then the silk-screen printing is carried out on the bottom surface of the glass cup bottom, so that uneven parts are printed smoothly to meet the requirement of unevenness tolerance; baking the glass heating container blank with the coating in a high-temperature oven (furnace) at the temperature of more than 500 ℃ for 30-90 minutes; performing an adhesion test, a cold and hot impact test and a heat conducting performance test after the coating is cured; and (3) testing the adhesive force: firstly, 100 lattices with the size of 2 x 2mm are scribed by using an art designing knife or a hundred lattice knife, the surface of the scribed lattice is cleaned by using a brush after scribing, then an adhesive tape is pasted on the surface of the lattice, an eraser is used for wiping the surface of the adhesive tape flat, the adhesive tape is pulled after the adhesive tape is placed for 3-5min at room temperature, one end of the adhesive tape and the coating surface form a 90-degree right angle when the adhesive tape is pulled, the adhesive tape is quickly torn off, and the 3 times are repeated to ensure that no falling coating on the adhesive tape is qualified; and (3) testing cold and hot impact: under the condition of room temperature, the glass heating container is placed on the 280 ℃ surface of the heating base in an empty cup state for 10min and then taken out, and then the glass heating container is immediately put into an ice-water mixture with the temperature of 0 ℃ for 1min, which is 1 test period, and 30 test periods are cumulatively completed, so that the surface of the coating of the glass heating container is free of bubbles, cracks, falling off and color difference and is qualified; testing the heat conduction performance: heating with the power of more than or equal to 700W of the heating base, and heating 1200ml of water at the temperature of 25 ℃ to 100 ℃ for less than or equal to 12 minutes to be qualified.
9. The method of claim 7, wherein the heat transfer efficiency of the glass heating vessel is improved by: the coating with the heat-conducting metal powder is replaced by a high-temperature-resistant ink coating containing metal powder and graphene powder, and the high-temperature-resistant ink coating containing the metal powder and the graphene powder is prepared by the following steps of 1) diluting sodium dodecyl sulfate with water according to the volume ratio of 1:500, 2) adding a proper amount of graphene into the diluted liquid for dispersion, and 3) adding the dispersed graphene liquid into high-temperature-resistant ink; 4) adding metal powder with particles of 800nm into the debugged graphene-containing ink, wherein the mass ratio of the metal powder to the ink is not less than 1: 4; during the silk-screen printing process, firstly printing ink on the bottom surface of the glass cup by using a 100-plus-200-mesh screen, filling the ink at the lower part of the glass cup, after the ink is dried for the first time, replacing the 250-plus-500-mesh screen, and carrying out silk-screen printing on the bottom surface of the glass cup, so that the uneven part is printed smoothly to meet the requirement of unevenness tolerance; or the coating with the heat-conducting metal powder is replaced by a coating and printing heat-conducting silica gel and a high-temperature-resistant ink coating, and the coating and printing steps of the heat-conducting silica gel and the high-temperature-resistant ink coating are as follows: firstly printing heat-conducting silica gel on the bottom surface of the glass cup by using a 100-mesh and 200-mesh screen, filling the heat-conducting silica gel at the lower part of the cup bottom, after the heat-conducting silica gel is firstly dried, replacing the 250-mesh and 500-mesh screen, then carrying out screen printing on the bottom surface of the glass cup bottom to ensure that the uneven part is printed smoothly so as to meet the requirement of unevenness tolerance, then baking and curing in a high-temperature oven or furnace at about 200 ℃, wherein the curing depth is less than or equal to 0.5mm, then screen printing high-temperature hardening ink on the heat-conducting silica gel coating by using the screen with the mesh number of 250-mesh and 500-mesh screen, and finally baking and curing in a high-temperature oven or furnace at about.
10. A method for improving the heat transfer efficiency of a glass heating vessel as in claim 7, 8 or 9, wherein: before a coating with heat-conducting metal powder, a high-temperature-resistant ink coating containing metal powder and graphene powder or heat-conducting silica gel and the high-temperature-resistant ink coating are coated and printed on the bottom surface of the glass heating container blank, the bottom surface of the glass heating container blank is subjected to water grinding and smoothing.
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| CN202021415501.3U Active CN214712043U (en) | 2020-06-29 | 2020-07-17 | Glass heating container |
| CN202021415485.8U Active CN214128137U (en) | 2020-06-29 | 2020-07-17 | Glass heater with heat-conducting metal layer |
| CN202010692045.5A Pending CN111870120A (en) | 2020-06-29 | 2020-07-17 | Glass heating container and manufacturing method thereof |
| CN202021519561.XU Active CN212788241U (en) | 2020-06-29 | 2020-07-28 | Temperature sensing device for heating container |
| CN202010739459.9A Pending CN111759160A (en) | 2020-06-29 | 2020-07-28 | Temperature sensing device for heating container and working method thereof |
| CN202021606851.8U Active CN212438272U (en) | 2020-06-29 | 2020-08-05 | High-efficiency heat-conduction glass heating container |
| CN202021606845.2U Active CN214341743U (en) | 2020-06-29 | 2020-08-05 | Glass heating container for bottom temperature sensing |
| CN202010779526.XA Pending CN111956066A (en) | 2020-06-29 | 2020-08-05 | High-efficiency heat-conduction glass heating container and manufacturing method thereof |
| CN202010780128.XA Pending CN111972993A (en) | 2020-06-29 | 2020-08-05 | Implementation method for improving heat conduction efficiency of glass heating container |
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| CN202021415485.8U Active CN214128137U (en) | 2020-06-29 | 2020-07-17 | Glass heater with heat-conducting metal layer |
| CN202010692045.5A Pending CN111870120A (en) | 2020-06-29 | 2020-07-17 | Glass heating container and manufacturing method thereof |
| CN202021519561.XU Active CN212788241U (en) | 2020-06-29 | 2020-07-28 | Temperature sensing device for heating container |
| CN202010739459.9A Pending CN111759160A (en) | 2020-06-29 | 2020-07-28 | Temperature sensing device for heating container and working method thereof |
| CN202021606851.8U Active CN212438272U (en) | 2020-06-29 | 2020-08-05 | High-efficiency heat-conduction glass heating container |
| CN202021606845.2U Active CN214341743U (en) | 2020-06-29 | 2020-08-05 | Glass heating container for bottom temperature sensing |
| CN202010779526.XA Pending CN111956066A (en) | 2020-06-29 | 2020-08-05 | High-efficiency heat-conduction glass heating container and manufacturing method thereof |
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| CN113795056A (en) * | 2021-09-17 | 2021-12-14 | 福建辉伦婴童用品有限公司 | Electric heating plate and preparation method thereof |
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| CN113057493A (en) * | 2021-04-07 | 2021-07-02 | 江西安姆特母婴用品有限公司 | High-efficiency heat-conduction glass heating container and manufacturing method thereof |
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| CN212788241U (en) | 2021-03-26 |
| CN212438272U (en) | 2021-02-02 |
| CN111956066A (en) | 2020-11-20 |
| CN111759160A (en) | 2020-10-13 |
| CN214712043U (en) | 2021-11-16 |
| CN214341743U (en) | 2021-10-08 |
| CN111870120A (en) | 2020-11-03 |
| CN214128137U (en) | 2021-09-07 |
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