CN104446507A - Manufacturing method of ceramic heating element and ceramic heating element - Google Patents
Manufacturing method of ceramic heating element and ceramic heating element Download PDFInfo
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- CN104446507A CN104446507A CN201410661199.2A CN201410661199A CN104446507A CN 104446507 A CN104446507 A CN 104446507A CN 201410661199 A CN201410661199 A CN 201410661199A CN 104446507 A CN104446507 A CN 104446507A
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Abstract
The invention relates to the technical field of ceramic heating elements and in particular relates to a manufacturing method of a ceramic heating element. The manufacturing method comprises the following steps: putting ceramic particles into a rubber die and sealing the rubber die; putting the sealed rubber die into an isostatic press for hydraulic pressing under the hydraulic pressure of 50-300MPa; biscuiting the green-body semi-finished product formed after isostatic pressing, thereby forming a green body, wherein the biscuiting is performed at a temperature ranging from 900 to 1400 DEG C; curling a substrate printed with a heating circuit with the green body; packaging the curled substrate and green body in vacuum; putting the vacuum-packaged substrate and green body into the isostatic press for hydraulic pressing under the hydraulic pressure of 5-50MPa; and sintering the heating element semi-finished product formed after isostatic pressing, thereby forming the ceramic heating element, wherein the sintering is performed at a temperature within the range of 1400 to 1600 DEG C. The green body of the ceramic heating element produced by use of the preparation method is uniform in density, the bonding of the green body and the substrate is stable, and the product is good in quality and long in service life.
Description
Technical field
The present invention relates to ceramic heating element technical field, particularly relate to a kind of manufacture method and ceramic heating element of ceramic heating element.
Background technology
Heating electrical appliance, such as: electric water heater, electric kettle etc., is now widely used in family, this type of electrical equipment that can heat current, its core component is the heating element arranged in electrical equipment heating chamber, during work, can realize heating work by carrying out energising to heating element.Heating element generally comprises base substrate and substrate, and substrate envelopes base substrate, and substrate is provided with the heating circuit for carrying out heating power with the coated one side be connected of base substrate.The base substrate of traditional above-mentioned heating element is generally to adopt injection moulding technique, dry process or extrusion process to produce, and pressure during production, generally at 5 ~ 50MPa, easily causes local pressure during compacting, causes the Density inhomogeneity of base substrate; And the combination of base substrate and substrate generally adopts the mode of hard rubber mould pressurizing to realize, hard rubber mould ensures definitely to coordinate with very difficult between product, during compacting, product local compression is inconsistent, cause the local of product in conjunction with bad, cause interiors of products to there is space, during high temperature exothermic, line with heating function Louis is oxidized, quality product can not get ensureing, work-ing life shortens.
Summary of the invention
The object of the invention is to the manufacture method providing a kind of ceramic heating element for the deficiencies in the prior art, the ceramic heating element manufactured by the method, can ensure that blank density is even, the combination of base substrate and substrate is stablized, good product quality, long service life.
Another object of the present invention is to provide a kind of ceramic heating element for the deficiencies in the prior art, the base substrate of this ceramic heating element and the combination of substrate are stablized, good product quality, long service life.
For achieving the above object, the manufacture method of a kind of ceramic heating element of the present invention, comprises the following steps,
(a) filler: ceramic prilling material is loaded in rubber mold, and rubber mold is sealed;
(b) isostatic pressed: the rubber mold completing sealing is put into isostatic pressing machine and carries out hydraulic pressure, its hydraulic pressure is 50 ~ 300MPa;
(c) biscuiting: biscuiting is carried out to the base substrate work in-process formed after completing previous step step process, form base substrate, its biscuiting temperature is 900 ~ 1400 DEG C;
D () rolls: the substrate and base substrate that are printed with heating circuit are rolled;
(e) vacuum packaging: vacuum packaging is carried out to rolled substrate and base substrate;
(f) isostatic pressed: will complete vacuum-packed substrate and base substrate and put into isostatic pressing machine and carry out hydraulic pressure, its hydraulic pressure is 5 ~ 50MPa;
G () sinters: sinter the heating element work in-process formed after completing isostatic pressed, and form ceramic heating element, its sintering temperature is 1400 ~ 1600 DEG C.
Preferably, described step (b) is 25 ~ 99 DEG C with the hydraulic pressure liquid temperature in step (f), and hydraulic pressure duration is 5 ~ 60min.
Preferably, described step (a) is specially: loaded in rubber mold by ceramic prilling material, by vibrating disk jolt ramming, and seal rubber mold.
Preferably, after described step (b), before step (c), also comprise step (b1) surperficial Vehicle Processing: take out the base substrate work in-process formed in rubber mold, by lathe, this base substrate semi-finished vehicles is become cylindric.
Preferably, after described step (b1), also comprise step (b2) surface fine grinding before step (c): precision work is carried out to the half-finished surface of columned base substrate, reaches required concrete size.
Preferably, in described step (c), by High Temperature Furnaces Heating Apparatus, biscuiting is carried out to the base substrate work in-process formed after completing previous step step process.
Preferably, described step (e) is specially: rolled substrate and base substrate are loaded in elastic colloid pipe or elastic colloid bag, and carries out vacuum packaging by Vacuum Packaging Machine to it.
Preferably, in described step (g), by High Temperature Furnaces Heating Apparatus, the heating element work in-process formed after completing isostatic pressed are sintered.
Preferably, in described step (b), step (f), isostatic pressed mode to can be after wet isostatic pressed, dry isostatic pressed or first dry-pressing isostatic pressed again.
For realizing another object above-mentioned, a kind of ceramic heating element of the present invention.
Beneficial effect of the present invention: the manufacture method of a kind of ceramic heating element of the present invention, carry out compacting by isostatic pressed to base substrate to produce, hydrostatic pressure is 50 ~ 300MPa, isostatic pressed pressing force is large and to base substrate respectively to uniform pressurization, base substrate can be made respectively to uniform stressed, blank density is consistent, promotes more than 20% than traditional blank density; Base substrate and substrate are suppressed to combine by isostatic pressed and are connected, hydrostatic pressure is 5 ~ 50MPa, during compacting, base substrate can be effectively made to be connected uniform stressed with the combination of substrate, base substrate is connected with the combination of substrate and there is not gap, the connection of base substrate and substrate there will not be crack to come off, thus can avoid the oxidation of heating circuit, and then guarantees that heating element consistence is good.The ceramic heating element of the manufacture method manufacturing of a kind of ceramic heating element of the present invention, stability during use is better, good product quality, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ceramic heating element that method manufacture of the present invention is produced.
Fig. 2 is the structural representation that the base substrate of the ceramic heating element that method manufacture of the present invention is produced is connected with substrate.
Reference numeral comprises:
10-base substrate, 20-substrate, 30-heating circuit.
Embodiment
Shown in accompanying drawing 1 to 2, the present invention is described in detail.
embodiment one.
The manufacture method of a kind of ceramic heating element of the present invention, comprises the following steps,
(a) filler: ceramic prilling material is loaded in rubber mold, and rubber mold is sealed, avoid ceramic prilling material to emerge in outside rubber mold;
(b) isostatic pressed: the rubber mold completing sealing is put into isostatic pressing machine and carries out hydraulic pressure, its hydraulic pressure is 50MPa, can guarantee that the rubber mold to being equipped with ceramic prilling material is suppressed comprehensively, pressure is large and even, hydraulic pressure liquid temperature is 50 DEG C, and wherein, pressure medium is water or wet goods; Heating certain temperature can make hydraulic effect better, and hydraulic pressure duration is 60min, can take out the rubber mold that ceramic prilling material is housed after hydraulic pressure compacting 60min;
(c) biscuiting: biscuiting is carried out to the base substrate work in-process formed after completing isostatic pressed, form base substrate 10, its biscuiting temperature is 900 DEG C;
D () rolls: rolled with base substrate 10 by the substrate 20 being printed with heating circuit 30;
(e) vacuum packaging: vacuum packaging is carried out to rolled substrate 20 and base substrate 10;
(f) isostatic pressed: vacuum-packed substrate 20 will be completed and put into isostatic pressing machine with base substrate 10 and carry out hydraulic pressure, its hydraulic pressure is 5MPa, base substrate 10 can be effectively made to be connected uniform stressed with the combination of substrate 20, base substrate 10 is connected with the combination of substrate 20 and there is not gap, hydraulic pressure liquid temperature is 25 DEG C, heating certain temperature can make hydraulic effect better, and hydraulic pressure duration is 60min, can take out the heating element work in-process of formation after hydraulic pressure compacting 60min;
G () sinters: sinter the heating element work in-process formed after completing isostatic pressed, and form ceramic heating element, its sintering temperature is 1400 DEG C.
Through the ceramic heating element that the present embodiment is manufactured out, its base substrate 10 is produced by isostatic pressed compacting, and hydrostatic pressure is 50MPa, and isostatic pressed pressing force is large and each to uniform pressurization to base substrate 10, base substrate 10 can be made each to uniform stressed, base substrate 10 consistent in density; Base substrate 10 and substrate 20 are suppressed to combine by isostatic pressed and are connected, hydrostatic pressure is 5MPa, during compacting, can effectively make base substrate 10 be connected uniform stressed with the combination of substrate 20, base substrate 10 is connected with the combination of substrate 20 and there is not gap, base substrate 10 there will not be crack to come off with the connection of substrate 20, thus heating circuit 30 can be avoided to be oxidized, and then guarantee that heating element consistence is good, stability during use is better, quality product is ensured, longer service life.
In addition, in described step (b), step (f), isostatic pressed mode to can be after wet isostatic pressed, dry isostatic pressed or first dry-pressing isostatic pressed again.
embodiment two.
The manufacture method of a kind of ceramic heating element of the present invention, comprises the following steps,
(a) filler: ceramic prilling material is loaded in rubber mold, by vibrating disk jolt ramming, and rubber mold is sealed, after jolt ramming ceramic prilling material, the gap existed between ceramic prilling material can be reduced;
(b) isostatic pressed: the rubber mold completing sealing is put into isostatic pressing machine and carries out hydraulic pressure, its hydraulic pressure is 100MPa, and hydraulic pressure liquid temperature is 60 DEG C, and hydraulic pressure duration is 49min;
(c) biscuiting: biscuiting is carried out to the base substrate work in-process formed after completing isostatic pressed, form base substrate 10, its biscuiting temperature is 1000 DEG C;
D () rolls: rolled with base substrate 10 by the substrate 20 being printed with heating circuit 30;
(e) vacuum packaging: vacuum packaging is carried out to rolled substrate 20 and base substrate 10;
(f) isostatic pressed: will complete vacuum-packed substrate 20 and put into isostatic pressing machine with base substrate 10 and carry out hydraulic pressure, its hydraulic pressure is 14MPa, and hydraulic pressure liquid temperature is 55 DEG C, and hydraulic pressure duration is 49min;
G () sinters: sinter the heating element work in-process formed after completing isostatic pressed, and form ceramic heating element, its sintering temperature is 1440 DEG C.
Through the ceramic heating element that the present embodiment is manufactured out, base substrate 10 can be made equally each to uniform stressed, base substrate 10 consistent in density; Base substrate 10 and substrate 20 are suppressed to combine by isostatic pressed and are connected, and effectively make base substrate 10 be connected uniform stressed with the combination of substrate 20, base substrate 10 is connected with the combination of substrate 20 and there is not gap, base substrate 10 there will not be crack to come off with the connection of substrate 20, thus heating circuit 30 can be avoided to be oxidized, and then guarantee that heating element consistence is good, stability during use is better, quality product is ensured, longer service life.
embodiment three.
The manufacture method of a kind of ceramic heating element of the present invention, comprises the following steps,
(a) filler: ceramic prilling material is loaded in rubber mold, by vibrating disk jolt ramming, and rubber mold is sealed, after jolt ramming ceramic prilling material, the gap existed between ceramic prilling material can be reduced;
(b) isostatic pressed: the rubber mold completing sealing is put into isostatic pressing machine and carries out hydraulic pressure, its hydraulic pressure is 150MPa, and hydraulic pressure liquid temperature is 70 DEG C, and hydraulic pressure duration is 38min;
(b1) surperficial Vehicle Processing: take out the base substrate work in-process formed in rubber mold, by lathe, this base substrate semi-finished vehicles is become cylindric, base substrate work in-process formation rule is cylindric after lathe turning;
(c) biscuiting: biscuiting is carried out to the base substrate work in-process formed after completing surperficial Vehicle Processing step, form base substrate 10, its biscuiting temperature is 1100 DEG C;
D () rolls: rolled with base substrate 10 by the substrate 20 being printed with heating circuit 30, roll into cylindric;
(e) vacuum packaging: vacuum packaging is carried out to rolled substrate 20 and base substrate 10;
(f) isostatic pressed: will complete vacuum-packed substrate 20 and put into isostatic pressing machine with base substrate 10 and carry out hydraulic pressure, its hydraulic pressure is 23MPa, and hydraulic pressure liquid temperature is 65 DEG C, and hydraulic pressure duration is 38min;
G () sinters: sinter the heating element work in-process formed after completing isostatic pressed, and form ceramic heating element, its sintering temperature is 1480 DEG C.
Through the ceramic heating element that the present embodiment is manufactured out, base substrate 10 can be made equally each to uniform stressed, base substrate 10 consistent in density; Base substrate 10 and substrate 20 are suppressed to combine by isostatic pressed and are connected, and effectively make base substrate 10 be connected uniform stressed with the combination of substrate 20, base substrate 10 is connected with the combination of substrate 20 and there is not gap, base substrate 10 there will not be crack to come off with the connection of substrate 20, thus heating circuit 30 can be avoided to be oxidized, and then guarantee that heating element consistence is good, stability during use is better, quality product is ensured, longer service life.
Wherein, finally shaping columned ceramic heating element is applicable to being applied to most of electricradiator, and applied widely, result of use is better.
embodiment four.
The manufacture method of a kind of ceramic heating element of the present invention, comprises the following steps,
(a) filler: ceramic prilling material is loaded in rubber mold, by vibrating disk jolt ramming, and rubber mold is sealed, after jolt ramming ceramic prilling material, the gap existed between ceramic prilling material can be reduced;
(b) isostatic pressed: the rubber mold completing sealing is put into isostatic pressing machine and carries out hydraulic pressure, its hydraulic pressure is 200MPa, and hydraulic pressure liquid temperature is 80 DEG C, and hydraulic pressure duration is 27min;
(b1) surperficial Vehicle Processing: take out the base substrate work in-process formed in rubber mold, by lathe, this base substrate semi-finished vehicles is become cylindric, base substrate work in-process formation rule is cylindric after lathe turning;
(b2) surface fine grinding: precision work is carried out to the half-finished surface of columned base substrate, reach required concrete size, wherein, the half-finished length of base substrate after fine grinding is 10 ~ 300mm, diameter is 2 ~ 50mm, and concrete length can be 10mm, 50mm, 100mm, 150mm, 200mm, 250mm, 300mm etc.; Concrete diameter can be 2mm, 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm etc.;
(c) biscuiting: biscuiting is carried out to the base substrate work in-process formed after completing surperficial precision grinding step, form base substrate 10, its biscuiting temperature is 1200 DEG C;
D () rolls: rolled with base substrate 10 by the substrate 20 being printed with heating circuit 30;
(e) vacuum packaging: vacuum packaging is carried out to rolled substrate 20 and base substrate 10;
(f) isostatic pressed: will complete vacuum-packed substrate 20 and put into isostatic pressing machine with base substrate 10 and carry out hydraulic pressure, its hydraulic pressure is 32MPa, and hydraulic pressure liquid temperature is 75 DEG C, and hydraulic pressure duration is 27min;
G () sinters: sinter the heating element work in-process formed after completing isostatic pressed, and form ceramic heating element, its sintering temperature is 1520 DEG C.
Through the ceramic heating element that the present embodiment is manufactured out, base substrate 10 can be made equally each to uniform stressed, base substrate 10 consistent in density; Base substrate 10 and substrate 20 are suppressed to combine by isostatic pressed and are connected, and effectively make base substrate 10 be connected uniform stressed with the combination of substrate 20, base substrate 10 is connected with the combination of substrate 20 and there is not gap, base substrate 10 there will not be crack to come off with the connection of substrate 20, thus heating circuit 30 can be avoided to be oxidized, and then guarantee that heating element consistence is good, stability during use is better, quality product is ensured, longer service life.
embodiment five.
The manufacture method of a kind of ceramic heating element of the present invention, comprises the following steps,
(a) filler: ceramic prilling material is loaded in rubber mold, by vibrating disk jolt ramming, and rubber mold is sealed, after jolt ramming ceramic prilling material, the gap existed between ceramic prilling material can be reduced;
(b) isostatic pressed: the rubber mold completing sealing is put into isostatic pressing machine and carries out hydraulic pressure, its hydraulic pressure is 250MPa, and hydraulic pressure liquid temperature is 90 DEG C, and hydraulic pressure duration is 16min;
(b1) surperficial Vehicle Processing: take out the base substrate work in-process formed in rubber mold, by lathe, this base substrate semi-finished vehicles is become cylindric, base substrate work in-process formation rule is cylindric after lathe turning;
(b2) surface fine grinding: precision work is carried out to the half-finished surface of columned base substrate, reach required concrete size, wherein, the half-finished length of base substrate after fine grinding is 10 ~ 300mm, diameter is 2 ~ 50mm, and concrete length can be 10mm, 50mm, 100mm, 150mm, 200mm, 250mm, 300mm etc.; Concrete diameter can be 2mm, 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm etc.;
(c) biscuiting: biscuiting is carried out to the base substrate work in-process formed after completing surperficial precision grinding step by High Temperature Furnaces Heating Apparatus, form base substrate 10, its biscuiting temperature is 1300 DEG C;
D () rolls: rolled with base substrate 10 by the substrate 20 being printed with heating circuit 30;
(e) vacuum packaging: vacuum packaging is carried out to rolled substrate 20 and base substrate 10;
(f) isostatic pressed: will complete vacuum-packed substrate 20 and put into isostatic pressing machine with base substrate 10 and carry out hydraulic pressure, its hydraulic pressure is 41MPa, and hydraulic pressure liquid temperature is 85 DEG C, and hydraulic pressure duration is 16min;
G () sinters: sinter the heating element work in-process formed after completing isostatic pressed, and form ceramic heating element, its sintering temperature is 1560 DEG C.
Through the ceramic heating element that the present embodiment is manufactured out, base substrate 10 can be made equally each to uniform stressed, base substrate 10 consistent in density; Base substrate 10 and substrate 20 are suppressed to combine by isostatic pressed and are connected, and effectively make base substrate 10 be connected uniform stressed with the combination of substrate 20, base substrate 10 is connected with the combination of substrate 20 and there is not gap, base substrate 10 there will not be crack to come off with the connection of substrate 20, thus heating circuit 30 can be avoided to be oxidized, and then guarantee that heating element consistence is good, stability during use is better, quality product is ensured, longer service life.
embodiment six.
The manufacture method of a kind of ceramic heating element of the present invention, comprises the following steps,
(a) filler: ceramic prilling material is loaded in rubber mold, by vibrating disk jolt ramming, and rubber mold is sealed, after jolt ramming ceramic prilling material, the gap existed between ceramic prilling material can be reduced;
(b) isostatic pressed: the rubber mold completing sealing is put into isostatic pressing machine and carries out hydraulic pressure, its hydraulic pressure is 300MPa, and hydraulic pressure liquid temperature is 99 DEG C, and hydraulic pressure duration is 5min;
(b1) surperficial Vehicle Processing: take out the base substrate work in-process formed in rubber mold, by lathe, this base substrate semi-finished vehicles is become cylindric, base substrate work in-process formation rule is cylindric after lathe turning;
(b2) surface fine grinding: precision work is carried out to the half-finished surface of columned base substrate, reach required concrete size, wherein, the half-finished length of base substrate after fine grinding is 10 ~ 300mm, diameter is 2 ~ 50mm, and concrete length can be 10mm, 50mm, 100mm, 150mm, 200mm, 250mm, 300mm etc.; Concrete diameter can be 2mm, 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm etc.;
(c) biscuiting: biscuiting is carried out to the base substrate work in-process formed after completing surperficial precision grinding step by High Temperature Furnaces Heating Apparatus, form base substrate 10, its biscuiting temperature is 1400 DEG C;
D () rolls: rolled with base substrate 10 by the substrate 20 being printed with heating circuit 30;
(e) vacuum packaging: rolled substrate 20 is loaded in elastic colloid pipe or elastic colloid bag with base substrate 10, and by Vacuum Packaging Machine, vacuum packaging is carried out to it;
(f) isostatic pressed: will complete vacuum-packed substrate 20 and put into isostatic pressing machine with base substrate 10 and carry out hydraulic pressure, its hydraulic pressure is 50MPa, and hydraulic pressure liquid temperature is 99 DEG C, and hydraulic pressure duration is 5min;
G () sinters: sintered the heating element work in-process formed after completing isostatic pressed by High Temperature Furnaces Heating Apparatus, and form ceramic heating element, its sintering temperature is 1600 DEG C.
Through the ceramic heating element that the present embodiment is manufactured out, base substrate 10 can be made equally each to uniform stressed, base substrate 10 consistent in density; Base substrate 10 and substrate 20 are suppressed to combine by isostatic pressed and are connected, and effectively make base substrate 10 be connected uniform stressed with the combination of substrate 20, base substrate 10 is connected with the combination of substrate 20 and there is not gap, base substrate 10 there will not be crack to come off with the connection of substrate 20, thus heating circuit 30 can be avoided to be oxidized, and then guarantee that heating element consistence is good, stability during use is better, quality product is ensured, longer service life.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (10)
1. a manufacture method for ceramic heating element, is characterized in that: comprise the following steps,
(a) filler: ceramic prilling material is loaded in rubber mold, and rubber mold is sealed;
(b) isostatic pressed: the rubber mold completing sealing is put into isostatic pressing machine and carries out hydraulic pressure, its hydraulic pressure is 50 ~ 300MPa;
(c) biscuiting: biscuiting is carried out to the base substrate work in-process formed after completing previous step step process, form base substrate, its biscuiting temperature is 900 ~ 1400 DEG C;
D () rolls: the substrate and base substrate that are printed with heating circuit are rolled;
(e) vacuum packaging: vacuum packaging is carried out to rolled substrate and base substrate;
(f) isostatic pressed: will complete vacuum-packed substrate and base substrate and put into isostatic pressing machine and carry out hydraulic pressure, its hydraulic pressure is 5 ~ 50MPa;
G () sinters: sinter the heating element work in-process formed after completing isostatic pressed, and form ceramic heating element, its sintering temperature is 1400 ~ 1600 DEG C.
2. the manufacture method of a kind of ceramic heating element according to claim 1, is characterized in that: described step (b) is 25 ~ 99 DEG C with the hydraulic pressure liquid temperature in step (f), and hydraulic pressure duration is 5 ~ 60min.
3. the manufacture method of a kind of ceramic heating element according to claim 1, is characterized in that: described step (a) is specially: loaded in rubber mold by ceramic prilling material, by vibrating disk jolt ramming, and seal rubber mold.
4. the manufacture method of a kind of ceramic heating element according to claim 1, it is characterized in that: after described step (b), step (b1) surperficial Vehicle Processing is also comprised: take out the base substrate work in-process formed in rubber mold, by lathe, this base substrate semi-finished vehicles is become cylindric before step (c).
5. the manufacture method of a kind of ceramic heating element according to claim 4, it is characterized in that: after described step (b1), step (b2) surface fine grinding is also comprised: precision work is carried out to the half-finished surface of columned base substrate, reaches required concrete size before step (c).
6. the manufacture method of a kind of ceramic heating element according to claim 1, is characterized in that: in described step (c), carries out biscuiting by High Temperature Furnaces Heating Apparatus to the base substrate work in-process formed after completing previous step step process.
7. the manufacture method of a kind of ceramic heating element according to claim 1, it is characterized in that: described step (e) is specially: rolled substrate and base substrate are loaded in elastic colloid pipe or elastic colloid bag, and by Vacuum Packaging Machine, vacuum packaging is carried out to it.
8. the manufacture method of a kind of ceramic heating element according to claim 1, is characterized in that: in described step (g), is sintered the heating element work in-process formed after completing isostatic pressed by High Temperature Furnaces Heating Apparatus.
9. the manufacture method of a kind of ceramic heating element according to claim 1, is characterized in that: in described step (b), step (f), and isostatic pressed mode to can be after wet isostatic pressed, dry isostatic pressed or first dry-pressing isostatic pressed again.
10. the ceramic heating element that produces of the manufacture method of the ceramic heating element according to claim 1 ~ 9 any one.
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| CN109005608A (en) * | 2018-06-28 | 2018-12-14 | 珠海华宇宏瑞科技有限公司 | A kind of processing method of hollow out ceramic heating element |
| CN109451607A (en) * | 2018-11-23 | 2019-03-08 | 福建闽航电子有限公司 | A kind of manufacturing method of the ceramic heating plate for closestool |
| CN109704783A (en) * | 2018-12-26 | 2019-05-03 | 常熟市银洋陶瓷器件有限公司 | A kind of forming method suitable for thin-wall part output window ceramics |
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Application publication date: 20150325 |