WO2023029660A1 - Couche de chauffage par induction électromagnétique et son procédé de préparation, et noyau d'atomisation et son procédé de préparation - Google Patents

Couche de chauffage par induction électromagnétique et son procédé de préparation, et noyau d'atomisation et son procédé de préparation Download PDF

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Publication number
WO2023029660A1
WO2023029660A1 PCT/CN2022/099011 CN2022099011W WO2023029660A1 WO 2023029660 A1 WO2023029660 A1 WO 2023029660A1 CN 2022099011 W CN2022099011 W CN 2022099011W WO 2023029660 A1 WO2023029660 A1 WO 2023029660A1
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Prior art keywords
heating layer
electromagnetic induction
induction heating
parts
sintering
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PCT/CN2022/099011
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English (en)
Chinese (zh)
Inventor
陈平
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深圳市华诚达精密工业有限公司
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Publication of WO2023029660A1 publication Critical patent/WO2023029660A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating

Definitions

  • the invention relates to the field of atomization technology, in particular to an electromagnetic induction heating layer and a preparation method thereof, an atomization core and a preparation method thereof.
  • ceramic atomizing cores Due to its high stability and high strength, ceramic atomizing cores are more and more widely used in the field of atomization.
  • the principle of the above-mentioned heating element is to realize the atomization of the atomization core by directly converting electric energy into heat energy.
  • the heating wire often affects the atomization effect due to unstable combination with ceramics or unstable contact resistance; thick film printing
  • the circuit will also have poor uniformity of the atomization effect due to the difficulty in controlling the cross-sectional area on the porous carrier.
  • the technical problem to be solved by the present invention is to provide an electromagnetic induction heating layer for an atomizing core that generates heat through electromagnetic induction and a preparation method thereof, an atomization core with the electromagnetic induction heating layer and a preparation method thereof.
  • the technical solution adopted by the present invention to solve the technical problem is: provide an electromagnetic induction heating layer for the atomizing core, including raw materials and their mass parts as follows: 50-100 parts of magnetically conductive metal powder, 0 parts of ceramic powder -30 parts, 0-40 parts of burning aid and 0-30 parts of paraffin;
  • the electromagnetic induction heating layer is a structural layer with pores formed by sintering the raw materials.
  • the magnetically conductive metal powder includes stainless iron, carbon steel, iron-aluminum alloy, iron-silicon alloy, iron-silicon-aluminum alloy, iron-cobalt alloy, soft magnetic ferrite, nickel, cobalt, amorphous At least one of state soft magnetic alloy and ultrafine crystal soft magnetic alloy.
  • the particle size of the magnetically conductive metal powder is 80 mesh to 1000 mesh.
  • the ceramic powder includes at least one of alumina, cordierite, silicon carbide, titanium diboride, barium titanate, and porcelain stone tailings.
  • the particle size of the ceramic powder is 100 mesh-2000 mesh.
  • the sintering aid includes at least one of low-temperature glaze, frit and low-melting glass powder.
  • the particle size of the sintering aid is 200 mesh-2000 mesh.
  • the present invention also provides a method for preparing an electromagnetic induction heating layer, comprising the following steps:
  • the compression molding method is dry compression molding, isostatic pressing molding or hot die casting molding.
  • the pressure of dry pressing is 1MPa-80MPa, and the pressure is maintained for 1-5min.
  • the pressure of isostatic pressing is 50MPa-200MPa, and the pressure is maintained for 2-10min.
  • the air pressure of hot die casting is 0.1MPa-2MPa, and the hot die casting time is 0.5s-3s.
  • the sintering temperature is 600°C-1300°C.
  • the present invention also provides an atomizing core, comprising a ceramic base and any one of the above electromagnetic induction heating layers, the electromagnetic induction heating layer is compounded on the ceramic base.
  • the present invention also provides a preparation method of the atomizing core, comprising the following steps:
  • the electromagnetic induction heating layer of the present invention is used in the atomizing core as the heating element of the atomizing core.
  • the electromagnetic induction heating layer is made by sintering raw materials such as magnetically conductive metal powder and has a porous structure; it is generated by electromagnetic effects when used.
  • the heat realizes the heating and atomization of the atomizing liquid, and the porous characteristics of the electromagnetic induction heating layer ensure the sufficient supply of the atomizing liquid and the atomizing steam can emerge from the holes smoothly, improving the atomization effect and uniformity.
  • Fig. 1 is the SEM picture of the electromagnetic induction heating layer surface of the present invention
  • Fig. 2 is a SEM image of the end face of the electromagnetic induction heating layer of the present invention.
  • the electromagnetic induction heating layer of the present invention is used in the atomizing core, and as the heating element of the atomizing core, heats and atomizes the atomizing liquid in the manner of electromagnetic induction heating.
  • the electromagnetic induction heating layer includes raw materials and their mass parts as follows: 50-100 parts of magnetically conductive metal powder, 0-30 parts of ceramic powder, 0-40 parts of sintering aid and 0-30 parts of paraffin.
  • the electromagnetic induction heating layer is a structural layer with pores formed by sintering raw materials.
  • the magnetically conductive metal powder is used as the main material of the electromagnetic induction heating layer, and is also a magnetically conductive material to realize electromagnetic induction heating, which can include stainless iron, carbon steel, iron-aluminum alloys, iron-silicon alloys, and iron-silicon-aluminum alloys. At least one of alloys, iron-cobalt alloys, soft ferrites, nickel, cobalt, amorphous soft magnetic alloys and ultrafine crystal soft magnetic alloys.
  • the particle size of the magnetically conductive metal powder can be 80 mesh to 1000 mesh.
  • Ceramic powder, sintering aid and paraffin can be added or not added as needed.
  • its mass fraction is preferably 5-30 parts; when the raw material comprises a sintering aid, its mass fraction is preferably 5-40 parts; when the raw material comprises paraffin, its mass fraction is preferably 10- 30 servings.
  • the ceramic powder may include at least one of alumina, cordierite, silicon carbide, titanium diboride, barium titanate, and porcelain stone tailings.
  • the particle size of the ceramic powder is preferably 100 mesh-2000 mesh.
  • the sintering aid may include at least one of low-temperature glaze, frit and low-melting glass powder.
  • the particle size of the sintering aid can be from 200 mesh to 2000 mesh.
  • the raw material of the electromagnetic induction heating layer of the present invention may also include a surfactant, and its mass fraction is 0.1-2 parts.
  • the surfactant is selected from at least one of oleic acid, Span, Tween and stearic acid.
  • the preparation method of the electromagnetic induction heating layer of the present invention may comprise the following steps:
  • Ceramic powder, sintering aid and paraffin can be added or not added as needed.
  • the press forming method is dry press forming, isostatic pressing or hot die casting.
  • the pressure of the dry pressing is 1MPa-80MPa, and the pressure is maintained for 1-5min.
  • the pressure is 50MPa-200MPa, and the pressure is maintained for 2-10min.
  • the air pressure is 0.1MPa-2MPa
  • the hot die casting time is 0.5s-3s.
  • the mixed raw materials also include a surfactant, and its mass fraction is 0.1-2 parts.
  • the surfactant is selected from at least one of oleic acid, Span, Tween and stearic acid.
  • the sintering temperature is 600°C-1300°C.
  • the magnetically conductive metal powder flows after melting, and the sintering neck formed by accumulation makes the electromagnetic induction heating layer have a porous feature.
  • the sintering temperature is 600°C-900°C
  • the sintering temperature is 900°C-1300°C .
  • the SEM figure of the electromagnetic induction heating layer of the present invention is as shown in Figures 1 and 2, wherein Figure 1 is an SEM figure showing the surface topography of the electromagnetic induction heating layer, and Figure 2 is a SEM figure showing the cross-sectional topography of the electromagnetic induction heating layer . It can be seen from Fig. 1 and Fig. 2 that the electromagnetic induction heating layer is distributed with pores, and the pores are evenly distributed.
  • the electromagnetic induction heating layer of the present invention is applied to an atomizing core, and the atomizing core may include an electromagnetic induction heating layer and a ceramic substrate, and the electromagnetic induction heating layer is compounded on the ceramic substrate.
  • the ceramic matrix of the atomizing core can be a polyhedron, cylinder, cylinder and other structures, and the electromagnetic induction heating layer can be compounded on one or more surfaces of the ceramic matrix, and the outer peripheral shape of the electromagnetic induction heating layer can be, but not limited to, polygonal, circular , oval and other shapes.
  • the ceramic substrate is used to absorb the atomizing liquid, and the electromagnetic induction heating layer generates heat due to the electromagnetic effect after being energized, and heats and atomizes the atomizing liquid.
  • the electromagnetic induction heating layer has the characteristics of porosity and porosity, which can ensure the sufficient supply of atomized liquid and the smooth escape of atomized steam from the holes.
  • the electromagnetic induction heating layer can achieve the effect of heating the entire surface, and the thermal efficiency of the same area is high.
  • the preparation method of the above-mentioned atomizing core may include the following steps:
  • the press forming method is dry press forming, isostatic pressing or hot die casting.
  • the pressure of the dry pressing is 1MPa-80MPa, and the pressure is maintained for 1-5min.
  • the pressure is 50MPa-200MPa, and the pressure is maintained for 2-10min.
  • the air pressure is 0.1MPa-2MPa
  • the hot die casting time is 0.5s-3s.
  • the mixed raw materials also include a surfactant, and its mass fraction is 0.1-2 parts.
  • the surfactant is selected from at least one of oleic acid, Span, Tween and stearic acid.
  • the ceramic slurry is molded on the heating layer body by hot die casting to form the atomizing core body.
  • the ceramic slurry is pre-prepared and made from the raw materials of the ceramic matrix of the atomizing core.
  • the raw material of the ceramic matrix can be selected from one or more of alumina, quartz sand, diatomite, cordierite, glass beads, zirconia, medical stone and the like.
  • the ceramic matrix is formed by molding the ceramic slurry and then sintering, and the heating layer body is sintered to form the electromagnetic induction heating layer.
  • the sintering temperature is 600°C-1300°C.
  • the magnetically conductive metal powder flows after melting, and the sintering neck formed by accumulation makes the electromagnetic induction heating layer have a porous feature.
  • Embodiment 6 is a diagrammatic representation of Embodiment 6
  • Embodiment 7 is a diagrammatic representation of Embodiment 7:
  • Embodiment 8 is a diagrammatic representation of Embodiment 8
  • Example 2 40 10.5368
  • Example 3 38 9.7346
  • Example 4 29 7.3256
  • Example 5 32 7.0326
  • Example 6 36 8.6953
  • Example 7 35 7.9632
  • Example 8 34 7.231
  • the electromagnetic induction heating layer prepared by the present invention has fine pores and uniform pore size, thereby ensuring sufficient liquid supply of the atomized liquid while heating and atomizing, fine atomization, and anti- Leakage effect.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • General Induction Heating (AREA)
  • Powder Metallurgy (AREA)

Abstract

La présente invention divulgue une couche de chauffage par induction électromagnétique et son procédé de préparation, ainsi qu'un noyau d'atomisation et son procédé de préparation. La couche de chauffage par induction électromagnétique comprend les matières premières suivantes, en parties en masse : 50 à 100 parties d'une poudre métallique conductrice magnétique, 0 à 30 parties d'une poudre céramique, 0 à 40 parties d'un auxiliaire de frittage, et 0 à 30 parties de paraffine. La couche de chauffage par induction électromagnétique est une couche structurale ayant des pores formés par frittage des matières premières. La couche de chauffage par induction électromagnétique selon la présente invention est utilisée pour un noyau d'atomisation et sert d'élément chauffant du noyau d'atomisation. La couche de chauffage par induction électromagnétique est formée par frittage de matières premières telles qu'une poudre métallique conductrice magnétique, et présente une structure poreuse. Lors de l'utilisation, le chauffage et l'atomisation d'un liquide d'atomisation sont obtenus au moyen de l'effet électromagnétique, et la caractéristique poreuse de la couche de chauffage par induction électromagnétique assure une alimentation suffisante du liquide d'atomisation et garantit que la vapeur d'atomisation peut s'écouler sans à-coups à partir des pores, ce qui améliore ainsi l'effet et l'uniformité de l'atomisation.
PCT/CN2022/099011 2021-09-03 2022-06-15 Couche de chauffage par induction électromagnétique et son procédé de préparation, et noyau d'atomisation et son procédé de préparation WO2023029660A1 (fr)

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CN202111031692.2 2021-09-03
CN202111031692.2A CN113941704A (zh) 2021-09-03 2021-09-03 电磁感应发热层及其制备方法、雾化芯及其制备方法

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CN111887499A (zh) * 2020-06-29 2020-11-06 阿特麦哲(东莞)科技有限公司 陶瓷复合雾化组件及其制造方法
CN112931952A (zh) * 2021-03-04 2021-06-11 深圳市基克纳科技有限公司 一种雾化芯及电子雾化装置
CN113941704A (zh) * 2021-09-03 2022-01-18 深圳市华诚达精密工业有限公司 电磁感应发热层及其制备方法、雾化芯及其制备方法

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CN116944493A (zh) * 2023-08-03 2023-10-27 广东奇砺新材料科技有限公司 一种金属浆料、具有凹凸表面的发热元件及气雾发生器
CN116944493B (zh) * 2023-08-03 2024-02-13 广东奇砺新材料科技有限公司 一种气雾发生器

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