CN103716923B - A kind of ceramic electric heating heating carrier and preparation method thereof - Google Patents
A kind of ceramic electric heating heating carrier and preparation method thereof Download PDFInfo
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- CN103716923B CN103716923B CN201310726199.1A CN201310726199A CN103716923B CN 103716923 B CN103716923 B CN 103716923B CN 201310726199 A CN201310726199 A CN 201310726199A CN 103716923 B CN103716923 B CN 103716923B
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Abstract
A kind of ceramic electric heating heating carrier, comprise heating carrier, be provided with heating wire in heating carrier, end element conneccting is installed at heating wire two ends, and described heating carrier is high-temperature ceramic materials, and described heating carrier is provided with installing hole and heat radiation drain hole.Preparation method comprises raw material preparation, gel injection molding and forming technology, formula material is added goal machine and carries out being mixed and finely ground 12-14 hours, then through calcining synthesis, levigate 8-10 hours, adds 0.8-1.5% shitosan again and stir for subsequent use after crossing 160 order vibrating screens; Shaping slip casting flow process comprises raw pulp and dissolves; Be placed on by product mold and shaking platform carry out vibration first time: put down platform and catch electric discharge heated filament, upper shaking platform carries out filling requirement mud, mould puts down platform and staticly to solidify by it.To have in hot environment heating use do not burst, be not oxidized, generate heat uniform and stable, the feature that heat transfer is fast, energy-saving effect is obvious, product is indeformable, specification standards are unified, convenient for assembly, and technique is simple, production efficiency is high, significantly reduces production cost.
Description
Technical field
The present invention relates to a kind of ceramic electric heating heating carrier and preparation method thereof.
Background technology
The traditional structure of this product is, mica insulation medium and resistance wire prop up the fever tablet serving as a contrast and pack metal material outward mutually, its complex structure, unreasonable, and cost is high, and useful life is short.Resistance wire and insulating ceramics slurry form the outer coupling metal shell that to be connected with metal circular tube and easily get rusty, and indirect heat transfer thermal effect is poor, it is high to consume energy.
Existing market PTC ceramic heating, it is self-conductive heating, and resistivity changes with temperature, and temperature raises resistivity to be increased, and electric current declines, and heating rate changes.PTC pottery Curie temperature is lower, and control temperature is also lower, is thus subject to around closely environmental impact, unfavorable persistent fever, can only make the parts to working media heating on air conditioner, cannot make separate heater.
Summary of the invention
Its object of the present invention is just to provide a kind of ceramic electric heating heating carrier and preparation method thereof, to have in hot environment heating use do not burst, be not oxidized, generate heat uniform and stable, the feature that heat transfer is fast, energy-saving effect is obvious, product is indeformable, specification standards are unified, convenient for assembly, and technique is simple, production efficiency is high, significantly reduces production cost.
Realize above-mentioned purpose and the technical scheme taked, comprising:
A kind of ceramic electric heating heating carrier, comprise heating carrier, be provided with heating wire in heating carrier, end element conneccting is installed at heating wire two ends, and described heating carrier is high-temperature ceramic materials, and described heating carrier is provided with installing hole and heat radiation drain hole.
The preparation method of described a kind of ceramic electric heating heating carrier, comprise raw material preparation, gel injection molding and forming technology, described raw material preparation comprises
1) raw material preparation weight ratio: kaolin 35-40%, spodumene 20-25%, aluminium titanates 2-5%, quartz 16-20%, aluminium oxide 6-8%, talcum 4-7%, carborundum 10-15%;
2) Material synthesis;
3) ball mill grinding, is mixed and finely ground 12-14 hours;
4) calcine, through calcining synthesis, temperature 1320 DEG C-1330 DEG C;
5) ball mill grinding, levigate 8-10 hours;
6) sieve: 160 orders sieve;
7) stir: add large biological molecule 0.8-1.5% shitosan and stir;
Described gel injection molding and forming technology comprises
1) preparation raw material, solution and dispersant, 100 grams of powder join 55-70 milliliters of clear water, acetic acid 0.5-10 milliliters, glutaraldehyde 0.5-0.7 milliliter;
2) mix;
3) stir;
4) slurrying;
5) mould upper vibrating grouting for the first time;
6) catch electric discharge heated filament, selected temperature required, power, determine that electric furnace heating wire diameter, length, spacing carry out roasting sizing, sintering temperature 600 DEG C-700 DEG C;
7) through secondary vibration slip casting;
8) mud solidifies;
9) louvre core rod is taken off;
10) leather-hard drying;
11) to mould adobe blocks mould;
12) base substrate is dried;
13) base substrate testing and finishing;
14) inspection of semifinished product;
15) burn till;
16) finished product detection;
17) packaging warehouse-in.
Compared with prior art the present invention has the following advantages.
This product adopts high temperature resistant, the nonmetallic materials that low bulk, high-temperature, pyroconductivity are high, through calcining (1320 DEG C-1330 DEG C), the ceramic new material of synthesis and high-temperature electric heated filament (1380 DEG C), the ceramic electric heating fired by gel injection-moulding new technology injection body heating carrier.Its advantage:
1. solidify easy to control, the convenient location of heating wire, can guarantee that heating wire spacing gap is even;
2. because solidifying slurry can join by glue mutually, form the solidifying body with higher-strength, any position is not stratified, heating wire center tight, makes ceramic powder and electric heating in conjunction with closely knit, serves heating evenly, fast key effect of conducting heat;
3. this technique can according to different purposes, different capacity, and difformity is produced, and particularly special-shaped product has original advantage, as: various hot air heater, electric cooker, electric kettle, various baking Shanghai, injection molding machine of plastic and electro-heat equipment etc.;
4. heating block needs tool pilot hole and with louvre etc., need not need mechanical tapping, can complete at mould with technique in conjunction with disposable, and solve ceramic semi-finished product and finished product and to hole easy avalanche, a damaged cost high difficult problem, Simplified flowsheet, guarantees quality, improves efficiency;
5. mould adopts the permanent use of (ABC) plastics to stop to produce without waste water, used pottery model discharge, and reduces the advantages such as molding factory building input.Anti-high thermal shock, reaches 800 DEG C, and supplementary cold water repeatedly exchanges and do not ftracture.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is ceramic electric heating heating carrier structure schematic front view in the present invention:
Fig. 2 is ceramic electric heating heating carrier structure diagrammatic top view in the present invention.
Embodiment
A kind of ceramic electric heating heating carrier, comprises heating carrier 5, is provided with heating wire 4 in heating carrier 5, end element conneccting 1 is installed at heating wire 4 two ends, as shown in Figure 1, 2, described heating carrier 5 is high-temperature ceramic materials, and described heating carrier 5 is provided with installing hole 2 and heat radiation drain hole 3.
Described heating carrier 5 is rectangle, circle, polygon or abnormity.
Described heating wire 4 is high-temperature electric heated filament.
The preparation method of described a kind of ceramic electric heating heating carrier, comprise raw material preparation, gel injection molding and forming technology, described raw material preparation comprises
1) raw material preparation weight ratio: kaolin 35-40%, spodumene 20-25%, aluminium titanates 2-5%, quartz 16-20%, aluminium oxide 6-8%, talcum 4-7%, carborundum 10-15%;
2) Material synthesis;
3) ball mill grinding, is mixed and finely ground 12-14 hours;
4) calcine, through calcining synthesis, temperature 1320 DEG C-1330 DEG C;
5) ball mill grinding, levigate 8-10 hours;
6) sieve: 160 orders sieve;
7) stir: add large biological molecule 0.8-1.5% shitosan and stir;
Described gel injection molding and forming technology comprises
1) preparation raw material, solution and dispersant, 100 grams of powder join 55-70 milliliters of clear water, acetic acid 0.5-10 milliliters, glutaraldehyde 0.5-0.7 milliliter;
2) mix;
3) stir;
4) slurrying;
5) mould upper vibrating grouting for the first time;
6) catch electric discharge heated filament, selected temperature required, power, determine that electric furnace heating wire diameter, length, spacing carry out roasting sizing, sintering temperature 600 DEG C-700 DEG C;
7) through secondary vibration slip casting;
8) mud solidifies;
9) louvre core rod is taken off;
10) leather-hard drying;
11) to mould adobe blocks mould;
12) base substrate is dried;
13) base substrate testing and finishing;
14) inspection of semifinished product;
15) burn till;
16) finished product detection;
17) packaging warehouse-in.
Described raw material preparation weight ratio: kaolin 30-35%, spodumene 30-35%, quartz 15-18%, aluminium oxide 8-12%, talcum 5-8%, zirconium silicate 2-5%, carborundum 2-5%.
Described raw material preparation weight ratio: kaolin 35-40%, spodumene 35-40%, quartz 16-20%, aluminium oxide 8-12%, talcum 6-8%, carborundum 10-15%.
The present invention adopts high temperature resistant, the nonmetallic materials that low bulk, high-temperature, pyroconductivity are high, through calcining (1320 DEG C-1330 DEG C), the ceramic new material of synthesis and high-temperature electric heated filament (1380 DEG C), the ceramic electric heating fired by gel injection-moulding new technology injection body heating carrier.All mixed by ceramic powder raw material adapted 0.8-1.5% shitosan, dissolving (100 grams of powder join 55-70 milliliters of clear water, acetic acid 0.5-10 milliliters, glutaraldehyde 0.5-0.7 milliliter) stirs into mud, pours into a mould.
Formula for a product and production procedure
1, raw material type and formula
According to different purposes and serviceability for three formulas: (% by weight)
1. kaolin 35-40%, spodumene 20-25%, aluminium titanates 2-5%, quartz 16-20%, aluminium oxide 6-8%, talcum 4-7%, carborundum 10-15%;
2. kaolin 30-35%, spodumene 30-35%, quartz 15-18%, aluminium oxide 8-12%, talcum 5-8%, zirconium silicate 2-5%, carborundum 2-5%;
3. kaolin 35-40%, spodumene 35-40%, quartz 16-20%, aluminium oxide 8-12%, talcum 6-8%, carborundum 10-15%.
2, Raw material processing flow process
Formula material is added ball mill to carry out being mixed and finely ground 12-14 hours, then through calcining synthesis (temperature 1320 DEG C-1330 DEG C), after to carry out grinding of ball grinder thin 8-10 hours, add 0.8-1.5% shitosan again after crossing 160 order vibrating screens and stir for subsequent use.
3, shaping slip casting flow process
1. raw pulp dissolves: look temperature height and regulate height in amplitude, and 100 grams of powder join 55-70 milliliters of clear water, acetic acid 0.5-10 milliliters, glutaraldehyde 0.5-0.7 milliliter stir into mud;
2. be placed on shaking platform by product mold and vibrate, slip casting, put down platform and catch electric discharge heated filament, upper shaking platform carries out filling requirement mud, mould puts down platform and staticly to solidify by it.After having a louvre product it solidifying completely, take off radiation hole mould, core, base substrate with mould nature drying shrinkage, the demoulding, dry, the inspection of semifinished product is repaired, dress bad enter kiln, burn till that (kiln atmosphere becomes barotropic state to burn till, 1290 DEG C-1300 DEG C), kiln discharge finished product detection, warehouse.
4, heating wire preparation
Selected good temperature required, power, determine that electric furnace heating wire diameter, length, spacing carry out roasting sizing (temperature 600 DEG C-700 DEG C).
Claims (3)
1. a preparation method for ceramic electric heating heating carrier, is characterized in that, comprises raw material preparation, gel injection molding and forming technology, and described raw material preparation comprises
1) raw material preparation weight ratio: kaolin 35-40%, spodumene 20-25%, aluminium titanates 2-5%, quartz 16-20%, aluminium oxide 6-8%, talcum 4-7%, carborundum 10-15%;
2) Material synthesis;
3) ball mill grinding, is mixed and finely ground 12-14 hours;
4) calcine, through calcining synthesis, temperature 1320 DEG C-1330 DEG C;
5) ball mill grinding, levigate 8-10 hours;
Sieve: 160 orders sieve;
Stir: add large biological molecule 0.8-1.5% shitosan and stir;
Described gel injection molding and forming technology comprises
1) preparation raw material, solution and dispersant, 100 grams of powder join 55-70 milliliters of clear water, acetic acid 0.5-10 milliliters, glutaraldehyde 0.5-0.7 milliliter;
2) mix;
3) stir;
4) slurrying;
5) mould upper vibrating grouting for the first time;
6) catch electric discharge heated filament, selected temperature required, power, determine that electric furnace heating wire diameter, length, spacing carry out roasting sizing, sintering temperature 600 DEG C-700 DEG C;
7) through secondary vibration slip casting;
8) mud solidifies;
9) louvre core rod is taken off;
10) leather-hard drying;
11) to mould adobe blocks mould;
12) base substrate is dried;
13) base substrate testing and finishing;
14) inspection of semifinished product;
15) burn till;
16) finished product detection;
17) packaging warehouse-in.
2. the preparation method of a kind of ceramic electric heating heating carrier according to claim 1, it is characterized in that, described raw material preparation weight ratio: kaolin 30-35%, spodumene 30-35%, quartz 15-18%, aluminium oxide 8-12%, talcum 5-8%, zirconium silicate 2-5%, carborundum 2-5%.
3. the preparation method of a kind of ceramic electric heating heating carrier according to claim 1, it is characterized in that, described raw material preparation weight ratio: kaolin 35-40%, spodumene 35-40%, quartz 16-20%, aluminium oxide 8-12%, talcum 6-8%, carborundum 10-15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310726199.1A CN103716923B (en) | 2013-12-26 | 2013-12-26 | A kind of ceramic electric heating heating carrier and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310726199.1A CN103716923B (en) | 2013-12-26 | 2013-12-26 | A kind of ceramic electric heating heating carrier and preparation method thereof |
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| CN103716923A CN103716923A (en) | 2014-04-09 |
| CN103716923B true CN103716923B (en) | 2016-03-09 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007661A (en) * | 2016-05-23 | 2016-10-12 | 湖南省醴陵市电热电器瓷厂 | Making method of integral ceramic heating body and integral ceramic heating body |
| CN110560680B (en) * | 2019-09-24 | 2021-10-15 | 深圳睿蚁科技有限公司 | Preparation process of high-thermal-conductivity heating wire |
| CN113816733A (en) * | 2021-11-06 | 2021-12-21 | 何祥林 | Formula of electrothermal ceramic material, preparation method of electrothermal ceramic blank and heating element |
| CN113816730A (en) * | 2021-11-06 | 2021-12-21 | 何祥林 | Formula of electrothermal ceramic material, preparation method of electrothermal ceramic blank and heating element |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397210A (en) * | 2007-09-24 | 2009-04-01 | 深圳市金科特种材料股份有限公司 | Gel-casting moulding technique for preparing silicon nitride ceramics heating element |
| CN202364398U (en) * | 2011-10-12 | 2012-08-01 | 徐梦彪 | High temperature chromium wire rare earth composite ceramic heating sheet |
| CN102671550A (en) * | 2012-06-01 | 2012-09-19 | 清华大学 | Ceramic membrane tube support and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002235016A (en) * | 2001-02-13 | 2002-08-23 | Minebea Co Ltd | Ceramic coating material and ceramic sintered product using the same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397210A (en) * | 2007-09-24 | 2009-04-01 | 深圳市金科特种材料股份有限公司 | Gel-casting moulding technique for preparing silicon nitride ceramics heating element |
| CN202364398U (en) * | 2011-10-12 | 2012-08-01 | 徐梦彪 | High temperature chromium wire rare earth composite ceramic heating sheet |
| CN102671550A (en) * | 2012-06-01 | 2012-09-19 | 清华大学 | Ceramic membrane tube support and preparation method thereof |
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Granted publication date: 20160309 Termination date: 20171226 |