Atomization core structural member and its manufacturing method

Abstract

In the atomizing core structural member and its manufacturing method, the atomizing core structural member includes, as raw materials and their mass parts, 30-50 parts of main body material, 5-20 parts of low melting point glass powder, 0-20 parts of carbon fiber, 0-20 parts of graphene, 0-30 parts of additive, and 0-10 parts of binder. At least one of the carbon fiber, graphene, and additive is not 0 part. The main body material includes at least one of aluminum oxide, bauxite, and corundum. The additive is selected to be an aluminum dihydrogen phosphate solution with a mass fraction of 90%. Compared with conventional silicone structural members, the atomizing core structural member has micropores and relatively high strength, and can effectively prevent liquid leakage and dry burning during atomization by the atomizing core, and can also provide a protective effect for the cotton core attached inside the structural member. In addition, it is easy to manufacture, has a low cost, and is easy to mold.

Description

[Technical field]

[0001] The present invention relates to the technical field of atomization, and in particular to an atomization core structural member and a method for manufacturing the same. [Background technology]

[0002] At present, atomizers seen on the market are usually cotton-core atomizing cores, which are made by adding a heating wire to fiber cords or organic cotton. The main forming methods of cotton-core atomizing cores include the method of surrounding cotton or the method of wrapping cotton, but since the heating wire is not fixed to the cotton, the connection between the cotton and the heating wire cannot be said to be tight. Therefore, when atomizing with the cotton-core atomizing core, phenomena such as liquid leakage and dry burning are likely to occur, which has a significant impact on the user experience and the service life of the cotton-core atomizing core. In addition, the structural support members used in the cotton-core atomizing core, such as silicone plugs and silicone covers, are less effective in preventing liquid leakage and dry burning, and have low strength, so there is a limit to the protection of the cotton core inserted inside. Summary of the Invention [Problem to be solved by the invention]

[0003] The technical problem to be solved by the present invention is to provide an atomizing core structural member and a manufacturing method thereof that can improve the prevention effect of liquid leakage and dry burning of the atomizing core. [Means for solving the problem]

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows: That is, an atomized core structure member is provided, which includes, as raw materials and their mass parts, 30-50 parts of main body material, 5-20 parts of low melting point glass powder, 0-20 parts of carbon fiber, 0-20 parts of graphene, 0-30 parts of additive, and 0-10 parts of binder, and at least one of the carbon fiber, graphene, and additive is not 0 part.

[0005] The body material includes at least one of aluminum oxide, bauxite, and corundum, and the additive is selected from an aluminum dihydrogen phosphate solution having a mass fraction of 50 to 95%.

[0006] Preferably, the particle size of the body material is 200-2000 mesh.

[0007] Preferably, the particle size of the low melting point glass powder is 80 to 600 mesh.

[0008] Preferably, the graphene has a thickness of 3 to 9 nm.

[0009] Preferably, the particle size of the carbon fibers is 80 to 600 mesh.

[0010] Preferably, the binder is a solution containing at least one of polyvinyl alcohol, maltodextrin, sodium polyacrylate, sodium carboxymethylcellulose, and polyvinyl butyral at a mass fraction of 1 to 10%.

[0011] Preferably, the solvent used in the solution is water.

[0012] The present invention further provides a method for manufacturing an atomizing core structural member, the method comprising the steps of:

[0013] S1: The raw materials are mixed and granulated to form a mixed material.

[0014] S2: The mixed material is poured into a mold and dry-press molded.

[0015] S3: The base material obtained by dry press molding is sintered at 400 to 700°C to obtain the atomization core structural member.

[0016] Preferably, in step S1, during mixing and granulation, the additives and binders in the raw materials are added dropwise in portions.

[0017] Preferably, in step S2, the pressure of the dry press molding is 0.1 to 10 MPa, and the pressure is maintained for 0 to 5 minutes.

[0018] Preferably, in step S3, the green body is first dried at 90 to 150° C. prior to sintering. Effect of the Invention

[0019] The atomization core structural member of the present invention realizes low-temperature sintering molding of the structural member by mixing raw materials such as the main body material and additives. In addition, the addition of carbon fiber and / or graphene improves the space filling rate and bending strength of the structural member. The atomization core structural member of the present invention is a ceramic structural member, which has micropores and relatively high strength compared to conventional silicone structural members, and can effectively prevent liquid leakage and dry burning during atomization by the atomization core, and can also provide protection for the cotton wick attached inside the structural member. In addition, it is easy to manufacture, has low cost, and is easy to mold.

[0020] The present invention will be further described below in combination with the drawings and examples. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is a SEM image of an atomizing core structural member in one embodiment of the present invention. [Diagram 2] FIG. 2 is a SEM image of an atomizing core structural member in another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The atomization core structure member of the present invention contains, as raw materials and parts by mass thereof, 30-50 parts of main body material, 5-20 parts of low melting point glass powder, 0-20 parts of carbon fiber, 0-20 parts of graphene, 0-30 parts of additives, and 0-10 parts of binder.

[0023] At least one of the carbon fiber, graphene, and additive is not 0 part. When the carbon fiber is not 0 part, it may be 3 to 20 parts. When the graphene is not 0 part, it may be 3 to 20 parts. When the additive is not 0 part, it may be 5 to 30 parts.

[0024] Specifically, among the raw materials of the atomization core structural member, the main body material may include at least one of aluminum oxide, bauxite, corundum, and the like.

[0025] The binder is a solution formed by mixing at least one of materials including polyvinyl alcohol, maltodextrin, sodium polyacrylate, sodium carboxymethylcellulose, and polyvinyl butyral, and the mass fraction of the solution is 1 to 10%. As a solvent required for mixing the solution, water may be used as the solvent depending on each of the above materials, and preferably distilled water may be used.

[0026] Regarding the selection of particle size, the particle size of the main body material is 200-2000 mesh, the particle size of the low melting point glass powder is 80-600 mesh, and the particle size of the carbon fiber is 80-600 mesh. In addition, the thickness of the graphene is 3-9 nm.

[0027] In the present invention, the additive is selected to be an aluminum dihydrogen phosphate solution having a mass fraction of 50 to 95%, and preferably has a mass fraction of 90%.

[0028] In the atomizing core structural member of the present invention, the bending strength of the structural member is improved by adding carbon fiber and / or graphene. Graphene is mixed between the particles of the main body material and wraps and winds around the particles, forming an anchor mechanism. Meanwhile, carbon fiber can exert a fiber toughening effect. Also, the strength of the structural member can be improved by adding aluminum dihydrogen phosphate as an additive. This is mainly because phosphoric acid or phosphate reacts with aluminum oxide or aluminum oxide in bauxite to form tridymite and squartz type aluminum phosphate that is thermosettingly bonded, improving the strength.

[0029] The manufacturing method of the atomization core structural member in the present invention may include the following steps.

[0030] S1: After measuring the desired mass parts of the raw materials, they are mixed and granulated to form a mixed material.

[0031] Since the binder and additives are both in a solution state, the additives and / or binders in the raw materials are added dropwise during mixing and granulation. The granulation time is 1 to 5 hours. Depending on the condition of the mixed materials, the granulation time may be increased or decreased appropriately.

[0032] S2: The mixed material is poured into a mold and dry-press molded.

[0033] The pressure in the dry press molding is 0.1 to 10 MPa, and the pressure is maintained for 0 to 5 minutes.

[0034] S3: The base material obtained by dry press molding is sintered at 400 to 700°C to obtain the atomization core structural member.

[0035] Prior to sintering the base material, it is first dried at 90 to 150°C to remove moisture.

[0036] The sintering is carried out in an air, vacuum or rare gas atmosphere, and the atomizing core structural member obtained after sintering has a certain space filling rate and strength.

[0037] In the above manufacturing method, when the raw material of the atomization core structural member contains graphene, the SEM image (50.0 μm) is as shown in Figure 1. It can be seen from the figure that the graphene is uniformly dispersed between the particles of the main body material, greatly improving the density of the structural member. When the raw material of the atomization core structural member contains carbon fiber, the SEM image (50.0 μm) is as shown in Figure 2. It can be seen from the figure that after sintering, the carbon fiber tightly covers the matrix of the structural member, thereby exerting the effect of strengthening the fiber.

[0038] The atomizing core structural member of the present invention may be formed by dry pressing a mold having a cavity of a corresponding shape according to the actual shape required, so that the base material to be dry pressed corresponds to the desired shape of the structural member after subsequent sintering, for example, a circular cylinder, a polygonal cylinder, etc.

[0039] When applying the atomizing core structural member of the present invention, a liquid absorbing member (eg, a cotton wick) equipped with a heating wire can be inserted inside the structural member to form the entire atomizing core.

[0040] The present invention will now be further described with reference to specific examples.

[0041] Example 1: 35 parts of aluminum oxide, 15 parts of low melting point glass powder, 4 parts of 10% binder, and 5 parts of 90% aluminum dihydrogen phosphate solution were mixed and granulated, then placed in a metal mold and dry press molded. The molding pressure was 0.1-10 MPa, and the molding pressure holding time was 1-2 minutes. The molded base material was placed in an oven and dried at 90-150°C, then placed in a sintering furnace and sintered at 660°C to obtain the atomization core structural member.

[0042] Example 2: Same as Example 1 except no binder was added.

[0043] Example 3: The same as Example 1 was conducted, except that the aluminum dihydrogen phosphate solution was replaced with 2 parts carbon fiber.

[0044] Example 4: The same as in Example 1, except that the aluminum dihydrogen phosphate solution was replaced with 2 parts graphene.

[0045] Example 5: Same as Example 1, except no binder was added and 2 parts carbon fiber was added.

[0046] Example 6: 30 parts of aluminum oxide, 20 parts of low melting point glass powder, and 5 parts of 90% aluminum dihydrogen phosphate solution were mixed and granulated, then placed in a metal mold and dry pressed. The molding pressure was 0.1-10 MPa, and the molding pressure holding time was 1-2 minutes. The molded base material was placed in an oven and dried at 90-150°C, then placed in a sintering furnace and sintered at 660°C to obtain the atomization core structural member.

[0047] Example 7: 40 parts of aluminum oxide, 10 parts of low melting point glass powder, and 5 parts of 90% aluminum dihydrogen phosphate solution were mixed and granulated, then placed in a metal mold and dry pressed. The molding pressure was 0.1-10 MPa, and the molding pressure holding time was 1-2 minutes. The molded base material was placed in an oven and dried at 90-150°C, then placed in a sintering furnace and sintered at 660°C to obtain the atomization core structural member.

[0048] Example 8: 50 parts of aluminum oxide, 5 parts of low melting point glass powder, and 10 parts of 90% aluminum dihydrogen phosphate solution were mixed and granulated, then placed in a metal mold and dry pressed. The molding pressure was 0.1-10 MPa, and the molding pressure holding time was 1-2 minutes. The molded base material was placed in an oven and dried at 90-150°C, then placed in a sintering furnace and sintered at 660°C to obtain the atomization core structural member.

[0049] Comparative Example 1: An atomized core structure member was produced by referring to the method of Example 1 using 35 parts of aluminum oxide, 15 parts of low melting point glass powder, and 4 parts of 10% binder.

[0050] Comparative Example 2: 80 parts of aluminum oxide, 15 parts of feldspar, and 5 parts of lepidolite were mixed and pressed to form a base material, which was then placed in a sintering furnace and sintered at 1000 to 1200°C to obtain the atomization core structural member.

[0051] The atomization core structural members obtained in the above Examples 1 to 8 and Comparative Examples 1 and 2 were measured for space filling rate and bending strength, and the results are shown in Table 1 below.

[0052] [Table 1]

[0053] As is clear from the results in Table 1, the atomization core structural members obtained in Examples 1 to 8 were obviously superior in space filling rate and bending strength to those obtained in Comparative Examples 1 and 2. In particular, when graphene or carbon fiber was added to the atomization core structural member as in Examples 3 to 5, the bending strength was obviously improved.

[0054] The above description is merely an embodiment of the present invention, and does not limit the scope of the present invention. Any equivalent structure or equivalent flow modification made using the contents of the specification and drawings of the present invention, or direct or indirect operation in other related technical fields, are all included in the scope of protection of the present invention for the same reasons.

Claims

1. The raw materials and their mass parts include 30 to 50 parts of a main body material, 5 to 20 parts of a low melting point glass powder, 0 to 20 parts of carbon fiber, 0 to 20 parts of graphene, 0 to 30 parts of an additive, and 0 to 10 parts of a binder, and at least one of the carbon fiber, graphene, and additive is not 0 part, The body material includes at least one of aluminum oxide, bauxite, and corundum, and the additive is selected from an aluminum dihydrogen phosphate solution having a mass fraction of 50 to 95%; The atomizing core structure member is characterized in that the binder is a solution containing at least one of polyvinyl alcohol, maltodextrin, sodium polyacrylate, sodium carboxymethylcellulose, and polyvinyl butyral at a mass fraction of 1 to 10%.

2. The atomizing core structure according to claim 1, wherein the particle size of said body material is 200-2000 mesh.

3. 2. The atomizing core structure member according to claim 1, wherein the particle size of the low melting point glass powder is 80 to 600 mesh.

4. The atomization core structure member according to claim 1, wherein the thickness of the graphene is 3 to 9 nm.

5. The atomizing core structure member according to claim 1, wherein the particle size of said carbon fiber is 80-600 mesh.

6. The atomizing core structure member according to claim 5, wherein the solvent used in the solution is water.

7. A method for producing the atomization core structure member according to any one of claims 1 to 6, comprising the steps of: S1: Mix and granulate the raw materials to form a mixed material; S2: The mixed material is poured into a mold and dry press molded; S3: The base material obtained by dry press molding is sintered at 400 to 700 ° C to obtain an atomization core structural member. A method comprising the steps of:

8. In step S1, during mixing and granulation, the additives and binders in the raw materials are added dropwise in portions; 8. The method for manufacturing an atomization core structure member according to claim 7, wherein in step S2, the pressure of the dry press molding is 0.1-10 MPa, and the pressure is maintained for 0-5 min.

9. 8. The method for manufacturing an atomization core structural member according to claim 7, wherein in step S3, the green body is first dried at 90 to 150° C. prior to sintering.

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