CN116396096A - Light magnetic ceramic paste material and preparation method thereof - Google Patents

Light magnetic ceramic paste material and preparation method thereof Download PDF

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Publication number
CN116396096A
CN116396096A CN202310233036.3A CN202310233036A CN116396096A CN 116396096 A CN116396096 A CN 116396096A CN 202310233036 A CN202310233036 A CN 202310233036A CN 116396096 A CN116396096 A CN 116396096A
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ceramic
light
glaze
magnetic ceramic
magnetic
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Chinese (zh)
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滕跃
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/32Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/04Clay; Kaolin
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
    • C04B33/1305Organic additives
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/32Burning methods
    • C04B33/34Burning methods combined with glazing
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/022 layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/22All layers being foamed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00Composition of foam
    • B32B2266/04Inorganic
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/60Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

The invention relates to a light magnetic ceramic paste material and a preparation method thereof, which is technically characterized in that: the magnetic ceramic sticker comprises two light ceramic greens and a magnet, wherein at least one magnet mounting groove is formed in the relative position between the two light ceramic greens, the number of the magnets is the same as that of the magnet mounting grooves, the magnets are embedded in the magnet mounting grooves, the two light ceramic greens and the magnets are fixedly arranged together in an adhesive mode, and ceramic glaze is formed on the surfaces of the light magnetic ceramic greens. The invention embeds the magnetic material in the light ceramic biscuit, so that the ceramic paste material has light weight and magnetism, can be used for manufacturing ceramic pastes with any shape, and has smooth and aesthetic surface due to the ceramic glaze manufactured on the surface of the ceramic paste, and can be widely used for manufacturing refrigerator pastes, storeroom displays, photographic backgrounds, film and television props, three-dimensional menus, hobbies and the like.

Description

Light magnetic ceramic paste material and preparation method thereof
Technical Field
The invention belongs to the technical field of magnetic patches, and particularly relates to a light magnetic ceramic patch material and a preparation method thereof.
Background
Along with the continuous improvement of the living standard of people, people put forward higher aesthetic demands on living environment. The magnetic paste with lovely shape can be used as home decoration, not only can be used for decorating a refrigerator, a bookshelf and the like, but also can be used as a shop display, a photographic background, a film and television prop, a three-dimensional menu, a hobby collection and the like.
At present, the magnetic paste is usually made of PVC materials, the PVC magnetic paste can be used repeatedly, is convenient to use and is popular with masses, but the PVC magnetic paste is usually formed by mixing PVC and magnetic powder, has high material density and is easy to fall off, and because the PVC magnetic paste is heavier, the PVC magnetic paste can only be made into a sheet form on the premise of meeting normal magnetic adsorption, and cannot be made into the magnetic paste with certain thickness, strong layering sense and good three-dimensional effect.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a light magnetic ceramic paste material and a preparation method thereof, and solves the problems that the existing PVC magnetic paste is easy to fall off due to high material density and can only be made into a sheet shape.
The invention solves the technical problems in the prior art by adopting the following technical scheme:
the light magnetic ceramic paste material comprises two light ceramic blanks and a magnet, wherein at least one magnet mounting groove is formed in the relative position between the two light ceramic blanks, the number of the magnets is the same as that of the magnet mounting grooves, the magnets are embedded in the magnet mounting grooves, the two light ceramic blanks and the magnets are fixedly arranged together in an adhering mode, and ceramic glaze is formed on the surfaces of the light magnetic ceramic blanks.
Further, the light ceramic biscuit is prepared by taking a kaolin system or a cinnabar system as a raw material and adopting a foaming method.
Further, the adhesive is made of kaolin slurry.
Further, the ceramic glaze adopts white glaze or colored glaze.
A preparation method of a light magnetic ceramic patch material comprises the following steps:
step 1, mixing ceramic powder with water, adding a dispersing agent, ball milling, adding a foaming agent, stirring, injecting into a ceramic paste die after stirring uniformly, drying and demoulding to obtain a light ceramic biscuit with a required shape;
step 2, mixing kaolin powder with water, and ball milling to obtain an adhesive;
step 3, uniformly coating the adhesive prepared in the step 2 on the opposite surfaces of the two light ceramic greenbodies and the surface of the magnet mounting groove, uniformly coating the adhesive on the surface of the magnet and embedding the magnet into the magnet mounting groove, and tightly combining the three materials and drying to obtain a light magnetic ceramic adhesive material main body;
step 4, mixing and ball milling the ceramic glaze and water to obtain glaze slurry;
step 5, coating the glaze slurry prepared in the step 4 on the surface of the main body of the light magnetic ceramic paste material, and sintering after drying;
and 6, after sintering, magnetizing the sintered body prepared in the step 5 by using a coil, and finally obtaining the light magnetic ceramic paste material.
Further, the ceramic powder is kaolin system powder or Zhu Ni system powder.
Further, in the step 1, the ratio of the ceramic powder to the water is 1:1, wherein the dosage of the dispersing agent is 3% of the total weight, and the dosage of the foaming agent is 3% -5% of the total weight.
Further, in the step 2, the ratio of the kaolin powder to the water is 1:1, and the granularity after ball milling is below 5 microns.
Further, in the step 4, the ratio of the ceramic glaze to the water is 1:3, and the granularity after ball milling is below 5 microns.
Further, the step 5 adopts 1300 ℃ sintering.
The invention has the advantages and positive effects that:
1. the invention embeds the magnetic material in the light ceramic biscuit, so that the ceramic paste material has light weight and magnetism, can be used for manufacturing ceramic pastes with any shape, and has smooth and aesthetic surface due to the ceramic glaze manufactured on the surface of the ceramic paste, and can be widely used for manufacturing refrigerator pastes, storeroom displays, photographic backgrounds, film and television props, three-dimensional menus, hobbies and the like.
2. The light magnetic ceramic sticker material surface of the invention can be processed with creative patterns again, has the texture of artistic ceramics, is light in plastic material, and enriches the requirements of people on artistic culture diversity.
3. In the preparation process, the ceramic lightening is realized by preparing the porous ceramic through a foaming process, the product density can be controlled by controlling the foaming degree, and the requirements of different application scenes can be met through the selection of magnetic materials and the magnetic size of a plurality of controllers.
Drawings
FIG. 1 is a schematic view of the structure of a lightweight magnetic ceramic patch according to the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
The design idea of the invention is as follows: because the existing light foamed ceramic materials in the market have no magnetism, the light foamed ceramic materials cannot be adsorbed on the surface of an object in a simple magnetic adsorption mode; in addition, the light foamed ceramic material does not have a smooth and attractive outer surface, lacks artistic aesthetic feeling, and cannot meet the aesthetic feeling requirement of the light magnetic paste. Therefore, the density of the ceramic paste is controlled by controlling the foaming degree, and the weight of the ceramic paste is reduced; the ceramic paste is magnetic through the embedding of the magnetic material; the ceramic glaze is made on the surface of the ceramic paste so that the surface of the ceramic paste is smooth and has aesthetic feeling.
The invention provides a light magnetic ceramic paste material, which comprises a light ceramic biscuit 1, a light ceramic biscuit 3 and a magnet 2, wherein a plurality of magnet mounting grooves 4 are uniformly distributed at opposite positions between the two light ceramic biscuits, the size and shape of the magnet mounting grooves are completely matched with those of the magnet, and the magnet is mounted in the magnet mounting grooves. The surface between two light ceramic greens and the surface between the magnet mounting groove and the magnet are coated with adhesive, the light ceramic greens 1, the light ceramic greens 3 and the magnet 2 are fixedly arranged together in an adhesive mode to form a light magnetic ceramic paste material main body, ceramic glaze 5 is manufactured on the surface of the light magnetic ceramic paste material main body, and the ceramic glaze is fixedly arranged with the light magnetic ceramic paste material main body in a sintering mode to finally obtain the light magnetic ceramic paste material.
In this embodiment, the lightweight ceramic greenware may be made using a kaolin system, or may be made using a cinnabar system, or other ceramic system. The adhesive adopts kaolin slurry as the adhesive; the ceramic glaze adopts white glaze or colored glaze so as to meet the application requirements of different scenes. The number of magnets can be set as desired, shaped cylinders, square cylinders or other shapes of magnets.
Based on the light magnetic ceramic paste material, the invention also provides a preparation method of the light magnetic ceramic paste material, which comprises the following steps:
step 1, mixing ceramic powder with water according to a ratio of 1:1, adding a certain amount of dispersing agent, ball milling, adding a certain amount of foaming agent, stirring, injecting into a ceramic paste die after stirring uniformly, drying and demoulding to obtain the light ceramic biscuit with the required shape.
In this embodiment, the ceramic powder may be a kaolin system powder or a cinnabar system powder. Ceramic powder to water ratio 1:1, can also float up and down, because of adopting the slip casting, can adjust the water consumption appropriately.
In this example, cetyltrimethylammonium bromide (CTAB) was used as the dispersant, in an amount of 3%.
In this example, cetyltrimethylammonium chloride (CTAC) was used as the blowing agent in an amount of 3% to 5%.
The content percentage of the foaming agent added is not fixed according to the different viscosity and solid content of the ceramic powder, and the product density is controlled by controlling the foaming degree.
And step 2, mixing kaolin powder with water according to a ratio of 1:1, performing ball milling, and stopping ball milling when the granularity is below 5 microns to obtain the adhesive.
And 3, uniformly coating the adhesive prepared in the step 2 on the corresponding surfaces of the two light ceramic greenware and the surface of the magnet mounting groove, simultaneously coating the adhesive on the surface of the magnet and embedding the adhesive into the magnet mounting groove, tightly combining the three materials, and drying in the shade for more than 24 hours to obtain the light magnetic ceramic adhesive material main body.
Step 4, mixing the ceramic glaze with water according to the weight ratio of 1:3, then ball milling is carried out, and after the ball milling is carried out and the particle size reaches below 5 microns, the ball milling is stopped, thus obtaining the glaze slurry.
And 5, coating the glaze slurry prepared in the step 4 on the surface of the main body of the light magnetic ceramic paste material, drying and sintering at 1300 ℃.
And 6, after sintering, magnetizing the sintered magnet by using a coil, and finally obtaining the light magnetic ceramic paste material.
The magnetization intensity of the light magnetic ceramic paste material prepared by the steps is more than 60emu/g, and the coercive force is more than 30000e.
It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the invention includes, but is not limited to, the examples described in the detailed description, as other embodiments derived from the technical solutions of the invention by a person skilled in the art are equally within the scope of the invention.

Claims (10)

1. A lightweight magnetic ceramic tile, characterized by: the ceramic glaze is characterized by comprising two light ceramic greens and a magnet, wherein at least one magnet mounting groove is formed in the relative position between the two light ceramic greens, the number of the magnets is the same as that of the magnet mounting grooves, the magnets are embedded in the magnet mounting grooves, the two light ceramic greens and the magnets are fixedly arranged together in an adhesive mode, and ceramic glaze is formed on the surfaces of the light magnetic ceramic greens.
2. The lightweight magnetic ceramic tile according to claim 1, wherein: the light ceramic biscuit is prepared from a kaolin system or a cinnabar system serving as a raw material by adopting a foaming method.
3. The lightweight magnetic ceramic tile according to claim 1, wherein: the adhesive is prepared from kaolin slurry.
4. The lightweight magnetic ceramic tile according to claim 1, wherein: the ceramic glaze adopts white glaze or colored glaze.
5. A method for producing the lightweight magnetic ceramic tile according to any one of claims 1 to 4, characterized in that: the method comprises the following steps:
step 1, mixing ceramic powder with water, adding a dispersing agent, ball milling, adding a foaming agent, stirring, injecting into a ceramic paste die after stirring uniformly, drying and demoulding to obtain a light ceramic biscuit with a required shape;
step 2, mixing kaolin powder with water, and ball milling to obtain an adhesive;
step 3, uniformly coating the adhesive prepared in the step 2 on the opposite surfaces of the two light ceramic greenbodies and the surface of the magnet mounting groove, uniformly coating the adhesive on the surface of the magnet and embedding the magnet into the magnet mounting groove, and tightly combining the three materials and drying to obtain a light magnetic ceramic adhesive material main body;
step 4, mixing and ball milling the ceramic glaze and water to obtain glaze slurry;
step 5, coating the glaze slurry prepared in the step 4 on the surface of the main body of the light magnetic ceramic paste material, and sintering after drying;
and 6, after sintering, magnetizing the sintered body prepared in the step 5 by using a coil, and finally obtaining the light magnetic ceramic paste material.
6. The method for preparing a lightweight magnetic ceramic tile according to claim 5, wherein: the ceramic powder is kaolin system powder or Zhu Ni system powder.
7. The method for preparing a lightweight magnetic ceramic tile according to claim 5, wherein: in the step 1, the ratio of the ceramic powder to the water is 1:1, wherein the dosage of the dispersing agent is 3% of the total weight, and the dosage of the foaming agent is 3% -5% of the total weight.
8. The method for preparing a lightweight magnetic ceramic tile according to claim 5, wherein: in the step 2, the proportion of the kaolin powder to the water is 1:1, and the granularity after ball milling is below 5 microns.
9. The method for preparing a lightweight magnetic ceramic tile according to claim 5, wherein: in the step 4, the ratio of the ceramic glaze to the water is 1:3, and the granularity after ball milling is below 5 microns.
10. The method for preparing a lightweight magnetic ceramic tile according to claim 5, wherein: and the step 5 is sintering at 1300 ℃.
CN202310233036.3A 2023-03-13 2023-03-13 Light magnetic ceramic paste material and preparation method thereof Pending CN116396096A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1032641A (en) * 1987-10-17 1989-05-03 周宗正 Composite magnetized plastic sheet and manufacturing thereof
CN1045945A (en) * 1989-04-01 1990-10-10 北京大学 Magnetic is pasted thing and adhering technique thereof
CN1046728A (en) * 1989-04-28 1990-11-07 湖南省陶瓷研究所 Magnetically therapeutic ceramic product and manufacture method thereof
CN102153333A (en) * 2010-12-19 2011-08-17 佛山市中国科学院上海硅酸盐研究所陶瓷研发中心 Method for preparing magnetizable ceramic
CN210696919U (en) * 2019-08-14 2020-06-09 德化县建益瓷业有限责任公司 Ceramic product convenient to place
CN214305777U (en) * 2021-03-04 2021-09-28 山东晟鲁机电科技有限公司 Double-end-face magnetic attraction lock catch type sealed ceramic pipeline expansion joint

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1032641A (en) * 1987-10-17 1989-05-03 周宗正 Composite magnetized plastic sheet and manufacturing thereof
CN1045945A (en) * 1989-04-01 1990-10-10 北京大学 Magnetic is pasted thing and adhering technique thereof
CN1046728A (en) * 1989-04-28 1990-11-07 湖南省陶瓷研究所 Magnetically therapeutic ceramic product and manufacture method thereof
CN102153333A (en) * 2010-12-19 2011-08-17 佛山市中国科学院上海硅酸盐研究所陶瓷研发中心 Method for preparing magnetizable ceramic
CN210696919U (en) * 2019-08-14 2020-06-09 德化县建益瓷业有限责任公司 Ceramic product convenient to place
CN214305777U (en) * 2021-03-04 2021-09-28 山东晟鲁机电科技有限公司 Double-end-face magnetic attraction lock catch type sealed ceramic pipeline expansion joint

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