CN111113770A - Preparation method of graphene heating electric brick - Google Patents
Preparation method of graphene heating electric brick Download PDFInfo
- Publication number
- CN111113770A CN111113770A CN202010239993.3A CN202010239993A CN111113770A CN 111113770 A CN111113770 A CN 111113770A CN 202010239993 A CN202010239993 A CN 202010239993A CN 111113770 A CN111113770 A CN 111113770A
- Authority
- CN
- China
- Prior art keywords
- heating
- graphene
- heat
- brick
- insulation board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
- F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
- F24D13/022—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements
- F24D13/024—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements in walls, floors, ceilings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Abstract
The invention discloses a preparation method of a graphene heating electric heating brick, which is formed by compounding a ceramic brick and a heating insulation board, wherein the heating insulation board is formed by integrally foaming a graphene heating chip and an insulation material, and the preparation method comprises the following steps: mixing heat insulation materials; fixing and placing the graphene heating chip; the heating insulation board is integrally formed; curing, curing and trimming the heating insulation board; detecting the performance of the heating insulation board; compounding a ceramic tile and a heating insulation board; and detecting the performance of the graphene heating electric heating brick. The preparation process is simple, and the prepared graphene heating electric-heating brick is good in heat insulation performance, high in heat efficiency, stable in structure and simple in construction and maintenance.
Description
Technical Field
The invention relates to the technical field of preparation methods of heating electric heating bricks, and particularly relates to a preparation method of a graphene heating electric heating brick.
Background
In the north of China, a large central heating mode of large investment, large boiler, large chimney and large pipe network is mostly adopted for heating in winter, the pollution is large, and the heat supply network is long in pipeline, so that the cost is high, the maintenance is difficult, and the limitation of end users is easily caused. And part of the system adopts a water heating mode for central heating, so that the maintenance cost is high and the installation difficulty is high.
In recent years, electric heating brick also becomes a trend of house heating, and electric heating brick product is formed by ceramic brick and heat-generating body complex mostly, and the heat-generating body mainly has carbon brilliant, heating wire and carbon fiber, wherein: the carbon crystal electric heater has short service life, complex construction and high cost and energy consumption; the electric heating wire has large electric heating electromagnetic radiation, slow heating and high energy consumption; the carbon fiber electric heating brick is easy to age and short in service life.
Graphene is used as a new material, and has excellent optical, electrical and mechanical properties, under the condition that a graphene heating film is electrified, carbon molecules in an electric heating film generate phonons, ions and electrons in a resistor, heat energy is generated by mutual friction and collision among generated carbon molecular groups, the heat energy is uniformly radiated out in a plane mode by far infrared rays with the wavelength controlled between 5 and 14 micrometers, the total conversion rate of effective electric heat energy reaches more than 99 percent, and the superconductivity of the graphene material is added, so that the stability of heating performance is ensured. Compared with the conventional metal wire heating film, the metal wire heating film has stable and safe heating, and the emitted infrared rays are called 'life rays'.
The preparation method of the graphene heating floor tile in the prior art has the defects of complex and tedious preparation process, multiple intermediate links, easy leakage phenomenon and the like. The production method of the graphene floor heating brick comprises the steps of firstly printing silver paste electrodes on one surface of a support film, printing conductive ink between the dried silver paste electrodes on the support film, hot-pressing a reflection layer on the other surface of the support film, mounting hollow rivets on the silver paste electrodes, and hot-pressing a protection layer on one surface of the support film printed with the conductive ink, wherein the application publication number is CN107514119A, and the application publication number is 2017, 12 and 26; welding a power line in the hollow rivet, sealing and fixing the welding head, spraying super glue on the surface of the hot-pressed protective layer, and sticking the decorative layer on the protective layer; and spraying strong force on the surface of the reflecting layer, and adhering the heat-insulating layer on the reflecting layer.
According to the preparation method of the graphene floor heating brick in the technical scheme, the floor heating brick comprises a five-layer structure, an additional composite protective layer and a reflecting layer are required besides a heating layer, each layer of structure is independently bonded, the preparation process is complex, intermediate links are multiple, and the prepared product is low in heating efficiency, unstable and easy to leak electricity.
Disclosure of Invention
In order to solve the problems of complex preparation procedures and many intermediate links of the existing graphene heating electric heating brick, the invention provides a preparation method of the graphene heating electric heating brick, which is formed by compounding a ceramic brick and a heating insulation board, wherein the heating insulation board is formed by integrally foaming a graphene heating chip and a heat insulation material.
The technical scheme adopted by the invention for solving the technical problems is as follows: a preparation method of a graphene heating electric heating brick is formed by compounding a ceramic brick and a heating insulation board, wherein the heating insulation board is formed by integrally foaming a graphene heating chip and an insulation material, and comprises the following steps:
s01, mixing of heat preservation materials: weighing the heat-insulating material according to the formula, and then placing the heat-insulating material in a foaming machine for uniformly mixing;
s02, fixing and placing the graphene heating chip: fixing a conductive wire harness of the external power supply of the graphene heating chip, and then placing the conductive wire harness inside the upper die cavity;
s03, integrally forming the heating and heat-insulating plate: injecting the heat insulation material uniformly mixed in the step S01 into the lower die cavity, closing the upper die with the heat insulation material, heating and foaming the heat insulation material in the die cavity, and integrally forming the heat insulation material and the graphene heating chip into a heat generation heat insulation board;
s04, curing and trimming the heating insulation board: taking out the heating insulation board after curing in the mold cavity, and curing and trimming;
s05, detecting the performance of the heating insulation board: detecting the appearance and the electrical performance of the heating insulation board;
s06, compounding the ceramic tile with the heating and heat-preserving plate: spraying a proper amount of adhesive on the bottom of the ceramic tile, then adhering the ceramic tile with the graphene heating chip surface of the heating insulation board, and maintaining pressure and reinforcing the adhered graphene heating electric heating tile;
s07, detecting the performance of the graphene heating electric brick: the appearance and the electrical property of the graphene heating electric brick are detected.
Further, the curing time of the heating insulation board is 8-30 minutes, and the curing time is 2 days.
Further, the graphene heating electric heating brick has the pressure maintaining time of 3 days.
Preferably, the heat insulation material is formed by mixing a polyurethane black material and a polyurethane white material, and the weight ratio of the polyurethane black material to the polyurethane white material is 1: 1.2-2.0.
Further, the electric performance detection of the heating insulation board and the graphene heating electric heating brick comprises power, insulativity, high voltage resistance and leakage current.
Preferably, the adhesive is a polyurethane adhesive.
The invention has the beneficial effects that:
the heating insulation board adopts the integrated foaming molding process of the graphene heating chip and the insulation material, the preparation process is simple, and meanwhile, the graphene heating chip and the insulation material are spliced in a seamless mode and are firmly combined.
The bottom of the ceramic tile is sprayed with a proper amount of adhesive to be directly bonded with the graphene heating chip surface of the heating insulation board, the graphene heating chip is clamped between the ceramic tile and the insulation material, and heat emitted by the graphene heating chip is concentrated on the ceramic tile to dissipate heat, so that the heat is utilized to the maximum extent, and the heat efficiency is high. After being adhered to the heating insulation board, the ceramic tile and the heating insulation board are subjected to pressure maintaining treatment, so that the ceramic tile and the heating insulation board are firmly adhered to each other and are not easy to fall off.
The heating insulation board and the graphene heating electric heating brick need to be subjected to appearance and electric performance detection in the preparation process, and the performance of the product is effectively guaranteed.
Meanwhile, the graphene heating electric warming brick prepared by the preparation method disclosed by the invention generates heat energy through the movement of graphene molecules, so that zero parasitic capacitance is realized, each graphene heating electric warming brick is connected with a thermal protector, automatic protection can be generated when the temperature is too high, the service life of the product is long, and the service life can reach 50 years.
In addition, the graphene power generation electric heating brick prepared by the preparation method can be paved and pasted in a paving and pasting mode of a common ceramic brick, and is easy and simple to construct; the graphene heating electric heating bricks are connected in parallel by adopting a circuit connection mode, and the maintenance and troubleshooting in construction and use are simple.
Drawings
Fig. 1 is a flow chart of a preparation process of a graphene heating electric heating brick;
fig. 2 is a schematic structural diagram of a graphene heat generation electric heating brick;
fig. 3 is an exploded view of the graphene heating electric heating brick;
fig. 4 is a schematic structural diagram of a graphene heating chip;
fig. 5 is an exploded view of a graphene heat-generating chip.
In the figure: 1. ceramic tiles; 2. a thermal insulation material; 3. a graphene heating chip; 31. a PET base film; 32. a graphene heating coating; 33. a polymer insulating film; 34. an electrode current-carrying bar; 35. a connection terminal; 4. a conductive wire bundle; 5. a thermal protector.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the present invention more clearly understood, the present invention is further described below by combining a flow chart of a preparation process of the graphene heating electric heating brick and a structure diagram of the graphene heating electric heating brick.
As shown in fig. 1-5, the graphene heating electric warming brick is formed by compounding a ceramic tile 1 and a heating insulation board, wherein the heating insulation board is formed by integrally foaming a graphene heating chip 3 and an insulation material 2, and the preparation method comprises the following steps:
s01, mixing of heat preservation materials:
firstly, weighing a heat insulation material 2 according to a formula, wherein the heat insulation material 2 is formed by mixing a polyurethane black material and a polyurethane white material, and the weight ratio of the polyurethane black material to the polyurethane white material is 1: 1.2-2.0; then, the heat insulating material 2 is placed in a foaming machine to be uniformly mixed.
S02, fixing and placing the graphene heating chip:
firstly, fixing the conductive wire harness 4 externally connected with the power supply of the graphene heating chip 3 on the outer surface of the graphene heating chip 3, and then placing the conductive wire harness inside the upper die cavity. The graphene heating chip 3 comprises a PET base film 31, a graphene heating coating 32 and a polymer insulating film 33, the graphene heating coating 32 is coated on the upper surface of the PET base film 31, the polymer insulating film 33 is coated on the upper surface of the graphene heating coating 32, electrode current-carrying strips 34 are clamped at two ends of the graphene heating coating 32 and the polymer insulating film 33, the conductive wire harness 4 is led out through a connecting terminal 35 embedded on the electrode current-carrying strips 34, a leading-out terminal of the conductive wire harness 4 is provided with a thermal protector 5, the thermal protector 5 can automatically protect a circuit when the temperature of the graphene heating coating 32 exceeds a rated range, and the use is safer.
The graphene heating coating 32 is prepared by adding high-molecular conductive resin, high-molecular nano conductive graphite powder and other auxiliary materials into graphene powder, and the graphene powder has excellent electric conductivity and heat conductivity, so that a far infrared light wave of 5-14 microns can be released after electrification, and the light wave of the wave band can activate biomolecules such as nucleic acid protein of a human body and the like, so that the graphene heating coating has a physical therapy and health care effect on the human body; the graphene molecules move violently, parasitic capacitance does not exist in the molecules, and the electric conversion efficiency is high; meanwhile, the graphene heating coating 32 has good dispersibility and can be uniformly coated on the PET base film 31, so that the heating uniformity of the graphene heating chip 3 is ensured.
S03, integrally forming the heating and heat-insulating plate:
injecting the heat insulation material 2 uniformly mixed in the step S01 into the lower die cavity, closing the die, carrying out chemical reaction on the uniformly mixed polyurethane black material and polyurethane white material in the die cavity, heating for foaming, and integrally forming the heat insulation plate with the graphene heating chip 3;
the insulating material 2 and the graphene heating chip 3 integrated into one piece in the foaming process, so that the graphene heating chip 3 and the insulating material 2 form seamless splicing, heat generated by the graphene heating chip 3 is guaranteed not to flow outwards, heat dissipation is concentrated on the ceramic tile 1, and the heat efficiency is improved. Meanwhile, the integrated foaming molding not only ensures the tight combination of the graphene heating chip 3 and the heat insulation material 2, but also reduces the secondary bonding process after the foaming of the graphene heating chip 3 and the heat insulation material 2.
The bottom in lower mould chamber sets up to the stripe shape, makes the insulation material face of the heated insulation board after integrated into one piece be the stripe structure to the adhesive force is also stronger when making the heated insulation board change the drawing of patterns, shop paste.
S04, curing and trimming the heating insulation board:
taking out the heating insulation board after curing in the mold cavity, wherein the curing time is 8-30 minutes; curing the heating insulation board for 2 days after curing; and trimming after curing.
S05, detecting the performance of the heating insulation board:
the appearance and the electrical performance of the heating insulation board are detected, the electrical performance detection comprises power, insulativity, high voltage resistance and leakage current, and the heating insulation board with qualified performance indexes is screened out and enters the next production process flow.
S06, compounding the ceramic tile with the heating and heat-preserving plate:
after a proper amount of adhesive is sprayed on the bottom of the ceramic tile 1, the ceramic tile is bonded with the surface of the graphene heating chip 3 of the heating insulation board, and the ceramic tile 1 is tightly bonded with the integrally foamed heating insulation board. Meanwhile, in order to improve the adhesive force between the ceramic tile 1 and the graphene heating chip 3, the bonded graphene heating electric heating brick is subjected to pressure maintaining reinforcement for 3 days.
S07, detecting the performance of the graphene heating electric brick:
the appearance and the electrical property of the graphene heating electric heating brick are detected, the electrical property detection comprises power, insulativity, high voltage resistance and leakage current, and the graphene heating electric heating brick product with all qualified performance indexes can be put into use.
During construction, the graphene heating electric heating brick disclosed by the invention is paved and pasted in a modularized mode, the paving and pasting mode is the same as that of a common ceramic brick, and only ceramic tile glue or cement is needed to be directly paved and pasted on a flat ground or wall surface. Adopt parallelly connected circuit connection mode between each graphite alkene electricity generation electric heating brick, when one of them graphite alkene electricity generation electric heating brick breaks down, other graphite alkene electricity generation electric heating bricks can normally function, and the maintenance investigation is simple, and graphite alkene that does not generate heat generates heat the electric heating brick and just needs to change or maintain the trouble brick for trouble brick.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (6)
1. The utility model provides a preparation method of graphite alkene electricity generation electric heating brick, is formed by pottery brick and the heated board complex that generates heat, and the heated board that generates heat is graphite alkene chip and insulation material integrated into one piece that foams, its characterized in that: the method comprises the following steps:
s01, mixing of heat preservation materials: weighing the heat-insulating material according to the formula, and then placing the heat-insulating material in a foaming machine for uniformly mixing;
s02, fixing and placing the graphene heating chip: fixing a conductive wire harness of the external power supply of the graphene heating chip, and then placing the conductive wire harness inside the upper die cavity;
s03, integrally forming the heating and heat-insulating plate: injecting the heat insulation material uniformly mixed in the step S01 into the lower die cavity, closing the upper die with the heat insulation material, heating and foaming the heat insulation material in the die cavity, and integrally forming the heat insulation material and the graphene heating chip into a heat generation heat insulation board;
s04, curing and trimming the heating insulation board: taking out the heating insulation board after curing in the mold cavity, and curing and trimming;
s05, detecting the performance of the heating insulation board: detecting the appearance and the electrical performance of the heating insulation board;
s06, compounding the ceramic tile with the heating and heat-preserving plate: spraying a proper amount of adhesive on the bottom of the ceramic tile, then adhering the ceramic tile with the graphene heating chip surface of the heating insulation board, and maintaining pressure and reinforcing the adhered graphene heating electric heating tile;
s07, detecting the performance of the graphene heating electric brick: the appearance and the electrical property of the graphene heating electric brick are detected.
2. The preparation method of the graphene heat generation electric heating brick according to claim 1, characterized in that: the curing time of the heating insulation board is 8-30 minutes, and the curing time is 2 days.
3. The preparation method of the graphene heat generation electric heating brick according to claim 1, characterized in that: the graphene heating electric heating brick has the pressure maintaining time of 3 days.
4. The preparation method of the graphene heat generation electric heating brick according to claim 1, characterized in that: the heat insulation material is formed by mixing a polyurethane black material and a polyurethane white material, wherein the weight ratio of the polyurethane black material to the polyurethane white material is 1: 1.2-2.0.
5. The preparation method of the graphene heat generation electric heating brick according to claim 1, characterized in that: the electric performance detection of the heating insulation board and the graphene heating electric heating brick comprises power, insulativity, high voltage resistance and leakage current.
6. The preparation method of the graphene heat generation electric heating brick according to claim 1, characterized in that: the adhesive is a polyurethane adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010239993.3A CN111113770A (en) | 2020-03-31 | 2020-03-31 | Preparation method of graphene heating electric brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010239993.3A CN111113770A (en) | 2020-03-31 | 2020-03-31 | Preparation method of graphene heating electric brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111113770A true CN111113770A (en) | 2020-05-08 |
Family
ID=70493851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010239993.3A Pending CN111113770A (en) | 2020-03-31 | 2020-03-31 | Preparation method of graphene heating electric brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111113770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113840401A (en) * | 2021-10-08 | 2021-12-24 | 清远市简一陶瓷有限公司 | Precise resistance-adjusting heating ceramic tile and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5792628A (en) * | 1980-11-29 | 1982-06-09 | Matsushita Electric Works Ltd | Manufacture of room heating panel |
| CN104818833A (en) * | 2015-03-23 | 2015-08-05 | 江苏科暖热能科技有限公司 | Electric heating tile and manufacturing method thereof |
| CN106760390A (en) * | 2017-01-17 | 2017-05-31 | 马军青 | A kind of far infrared heating ceramic tile and its manufacture method |
| CN108948324A (en) * | 2018-06-29 | 2018-12-07 | 南京红宝丽新材料有限公司 | A kind of electrothemic floor insulation board and preparation method thereof |
-
2020
- 2020-03-31 CN CN202010239993.3A patent/CN111113770A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5792628A (en) * | 1980-11-29 | 1982-06-09 | Matsushita Electric Works Ltd | Manufacture of room heating panel |
| CN104818833A (en) * | 2015-03-23 | 2015-08-05 | 江苏科暖热能科技有限公司 | Electric heating tile and manufacturing method thereof |
| CN106760390A (en) * | 2017-01-17 | 2017-05-31 | 马军青 | A kind of far infrared heating ceramic tile and its manufacture method |
| CN108948324A (en) * | 2018-06-29 | 2018-12-07 | 南京红宝丽新材料有限公司 | A kind of electrothemic floor insulation board and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113840401A (en) * | 2021-10-08 | 2021-12-24 | 清远市简一陶瓷有限公司 | Precise resistance-adjusting heating ceramic tile and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101148939B (en) | Electric heating floor board | |
| CN200994196Y (en) | Electric heating film heating device | |
| CN102307403B (en) | Self-limiting temperature electrothermal membrane of PTC high-molecular conductive fiber and preparation method thereof | |
| CN207727900U (en) | A kind of graphene heat energy floor | |
| CN107613589A (en) | A kind of graphene heating film | |
| CN110126368A (en) | A kind of electric heating rubber and preparation method thereof | |
| CN109673069A (en) | A kind of graphene silicone rubber heating pad and preparation method thereof | |
| CN201712137U (en) | Energy-saving heating ring of material barrel of far-infrared radiation injection molding machine | |
| CN111113770A (en) | Preparation method of graphene heating electric brick | |
| CN206193284U (en) | And simultaneously, | |
| CN105237718A (en) | Making method of soft carbon crystal electric hot plate for U-shaped pillow | |
| KR100553357B1 (en) | MICA using a plane heater | |
| CN207869428U (en) | A kind of graphene heating film | |
| CN211321527U (en) | Floor heating module | |
| CN204578803U (en) | Graphite flake electric heating components and parts | |
| CN111182666A (en) | Graphene heating ceramic tile | |
| CN211152241U (en) | Heating plate for mobile phone maintenance | |
| CN204018171U (en) | For the crucible heating plate of crucible spraying | |
| CN102427616A (en) | Flame-retarded PTC high polymer self-limiting temperature electric heating film and preparation method thereof | |
| WO2020057599A1 (en) | Heating building material and preparation method therefor | |
| CN212324389U (en) | Heating element | |
| CN213979741U (en) | Heating floor heated by composite graphene film | |
| CN205812415U (en) | Infrared heating dish and firing equipment | |
| CN215912245U (en) | Glass tempering furnace heating device for heating by medium-high temperature composite graphene | |
| CN202170609U (en) | Ceramic tile heated by carbon fiber paper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200508 |