CN101913897B - Inner port for electro-thermal cooker and production method thereof - Google Patents
Inner port for electro-thermal cooker and production method thereof Download PDFInfo
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- CN101913897B CN101913897B CN201010281068A CN201010281068A CN101913897B CN 101913897 B CN101913897 B CN 101913897B CN 201010281068 A CN201010281068 A CN 201010281068A CN 201010281068 A CN201010281068 A CN 201010281068A CN 101913897 B CN101913897 B CN 101913897B
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Abstract
The invention discloses an inner pot made from a carbon/carbon composite material for an electro-thermal cooker. The inner pot comprises a pot body (1), and is characterized in that the pot body (1) is made from the carbon/carbon composite material. A production method of the inner pot comprises the step of carrying out blank making, densifying, purifying, machining and surface densifying on carbon fibers. The inner port produced in the method has good heat conductivity, heat preservation and mechanical property, and is especially free from sticking during use; furthermore, the weight of the inner port is reduced, and the service life is improved.
Description
Technical field
The present invention relates to a kind of kitchen appliance articles for use, specifically a kind of electric-heating cooking utensil, particularly a kind of inner port for electro-thermal cooker and production method.
Background technology
Along with the widely-used raising that reaches living standards of the people of electricity, electric-heating cooking utensil is fully used.Electric-heating cooking utensil comprises that electric cooker, electricity stew crucible, electric frying pan and Electric cooker for soup etc., is a kind of modernized cooker that multiple processing such as can steam, boil, stew, simmer, boil in a covered pot over a slow fire.They not only can cook food ripe, and can be incubated, and use sanitation and hygiene, do not pollute, and are time saving and energy saving, are one of indispensable apparatus of housework modernization.They are made up of outer pot that has heating element and brace table and interior pot usually.Interior pot is used for food, is placed in the outer pot.Heating element heating power on the outer pot, pot in the heating, interior pot are again with the food of heat transferred institute's splendid attire in it, to reach the purpose of processed food.At present, the general made that adopts of the interior pot of electric-heating cooking utensil, its thermal conductivity is good, but yielding and heat insulation effect is poor; Employing marmite (earth is fired and formed) is also arranged, but the crisp cracky of marmite property, thermal conductivity is very poor.And because pot operating temperature is glued pot easily mostly about in the of 100 ℃ in it when being used for processed food, clean trouble, also need internal pot to carry out Teflon film, to avoid sticking pot.The carbon fiber reinforced carbon matrix composite that carbon/carbon compound material is made up of the pure carbon element, its moulding are generally compound or flood into prefabricated component through lamination acupuncture by carbon fibre web and cloth, again through processing after chemical vapour deposition (CVD) density and/or the dipping density.Major advantage comprises: density is low, high strength and high rigidity, high temperature dimensionally stable, intensity raise with the rising of temperature; Anti-ablation, anti-thermal shock, radioresistance and chemical inertness etc.; Be specially adapted to the high temperature field, become one of important foundation material of space flight and aviation and high-tech engineering at present.
Summary of the invention
The purpose of this invention is to provide a kind of inner port for electro-thermal cooker and production method that adopts carbon/carbon compound material to be processed into.
The present invention adopts following technical scheme to realize its goal of the invention:
Chemical vapour deposition (CVD) (Chemical vapor deposition; Be called for short CVD) be meant that under hot environment, pyrolytic deposition carbon takes place hydrocarbon gas treating that the precast body of density is placed in the CVD stove in the porous preform of soaking; On precast body, be the important procedure that improves product density.
Graphitization processing: be meant at high temperature material with carbon element unformed, Turbostratic is transformed to three-dimensional graphite ordered structure, to improve The comprehensive performance.
A kind of inner port for electro-thermal cooker, it comprises a pot body, the pot body adopts carbon/carbon compound material to be processed into.
The surface of pot body of the present invention is provided with the RESEARCH OF PYROCARBON compacted zone.
A kind of production method of inner port for electro-thermal cooker as stated, it comprises the following steps:
⑴ base: will make it to be combined into felt through acupuncture by net tire and the carbon cloth that carbon fiber is processed; Be wound in felt on the mould, cover one deck carbon cloth above that, cover one deck felt again; So crossover is placed and is made it compound through acupuncture, processes the inner port for electro-thermal cooker precast body of necessary requirement;
⑵ density: the inner port for electro-thermal cooker precast body of step ⑴ gained through the chemical vapour deposition (CVD) density, progressively increases its density and through graphitization processing, processes the inner port for electro-thermal cooker base substrate of necessary requirement;
⑶ purifying: the inner port for electro-thermal cooker base substrate of step ⑵ gained is put into high temperature furnace, under vacuum or protective atmosphere condition, add wherein impurity of heat abstraction;
⑷ machined: the inner port for electro-thermal cooker that step ⑶ gained inner port for electro-thermal cooker base substrate is machined to required form and size;
⑸ surface densification: step ⑷ gained inner port for electro-thermal cooker is put into high temperature furnace, adopt chemical gaseous phase depositing process, it is carried out surface densification handle.
The present invention further improves its purity; With the inner port for electro-thermal cooker that step ⑸ gained is handled through surface densification, put into high temperature furnace, under vacuum or protective atmosphere condition, add wherein impurity of heat abstraction; Promptly under vacuum condition, be heated to 1500 ℃～2000 ℃, insulation 2h～3h.
The present invention is in step ⑴, and the surface density of said net tire is 20g/ ㎡～90g/ ㎡, and the surface density of carbon cloth is 200g/ ㎡～320g/ ㎡, and the apparent density of felt is 0.3g/cm
3～0.6g/cm
3, the inner port for electro-thermal cooker precast body of processing, its apparent density is 0.3g/cm
3～0.7g/cm
3
The present invention is in step ⑵, and the apparent density of inner port for electro-thermal cooker base substrate is 1.43g/cm
3～1.75g/cm
3
The present invention is in step ⑶, and described purifying is for to add wherein impurity of heat abstraction under vacuum or protective atmosphere condition, and cleansing temp is 1800 ℃～2500 ℃, and temperature retention time is 2h～6h.
Because adopt technique scheme, the present invention has realized goal of the invention preferably, the interior pot that adopts carbon/carbon compound material to be processed into; Have good heat conduction, insulation and mechanical property; Non-stick pan when particularly using, and reduced interior pot weight, improved service life.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Embodiment 1:
Can know by Fig. 1, a kind of inner port for electro-thermal cooker, it comprises pot body 1, pot body 1 adopts carbon/carbon compound material to be processed into.
The surface of pot body 1 of the present invention is provided with RESEARCH OF PYROCARBON compacted zone 2.
A kind of production method of inner port for electro-thermal cooker as stated, it comprises the following steps:
⑴ base:
1. shredding becomes net: choose the long short carbon fiber (present embodiment is 60 ㎜～90 ㎜) of 30 ㎜～120 ㎜; Become fluffy raphioid fiber through the shredding of shredding equipment; Then the good carbon fiber of shredding through air lay and/or carding (present embodiment is air lay and carding); Utilize the lapping machine to be paved into fleece again, sting into the net tire in advance, the surface density of said net tire is 20g/ ㎡～90g/ ㎡ (present embodiment is 80g/ ㎡);
2. lamination is combined into felt: the carbon cloth of processing the net tire and the carbon fiber of gained makes it to be combined into felt through acupuncture; Be wound in felt on the mould; Cover one deck carbon cloth above that; Cover one deck felt again, so crossover is placed and is made it compound through acupuncture, processes the inner port for electro-thermal cooker precast body of necessary requirement.Depth of needling is 6 mm～25mm (present embodiment is 15mm); Needling density 3 Ci/㎝
2～10 Ci/㎝
2(present embodiment is 6 Ci/㎝
2); Layer density during the processing felt is 5 Ceng/㎝～20 Ceng/㎝ (present embodiment is 9 Ceng/㎝); The apparent density 0.3g/cm of said precast body
3～0.7g/cm
3(present embodiment is 0.5g/cm
3).
⑵ density: the precast body of step ⑴ gained through the chemical vapour deposition (CVD) density, and through graphitization processing, is processed the inner port for electro-thermal cooker base substrate, and the apparent density of said inner port for electro-thermal cooker base substrate is 1.43g/cm
3～1.75g/cm
3(present embodiment is 1.56g/cm
3).
In the chemical vapour deposition (CVD) density; Used carbon-source gas is a natural gas; Flow is 15L/min～40L/min (present embodiment is 29L/min), and temperature is 850 ℃～1200 ℃ (present embodiment is 1050 ℃), and pressure is 0.5KPa～1.5KPa (present embodiment is 0.9KPa); In 1～4 cycle of density (present embodiment is 3 cycles), each cycle is 60h～160h (present embodiment is 120h).After each density, according to base substrate top layer concrete condition, the base substrate top layer is peeled off with machining mode, to guarantee the density effect of follow-up density.
⑶ purifying: step ⑵ gained inner port for electro-thermal cooker base substrate is put into high temperature furnace, under vacuum or protective atmosphere condition, add wherein impurity of heat abstraction, carry out purification process.Cleansing temp is 1800 ℃～2500 ℃ (present embodiment is 2300 ℃), and temperature retention time is 2h～6h (present embodiment is 3h).
(4) machined: the goods that step ⑶ gained inner port for electro-thermal cooker base substrate are machined to required form and size.
⑸ surface densification: step ⑷ gained inner port for electro-thermal cooker goods are put into high temperature furnace; Adopt chemical gaseous phase depositing process; It is carried out surface densification handle, make the surface of pot body 1 form one deck RESEARCH OF PYROCARBON compacted zone 2 that 100 μ m～300 μ m are thick (present embodiment is 230 μ m).Used carbon-source gas is a natural gas, and flow is 25L/min～45 L/min (present embodiment is 40 L/min), and temperature is 950 ℃～1250 ℃ (present embodiment is 1200 ℃), and pressure is 1.5KPa～3KPa (present embodiment is 2.5KPa).
Adopt the carbon/carbon compound material inner port for electro-thermal cooker of this method preparation, have good heat conduction, insulation and mechanical property, non-stick pan when particularly using, and reduced interior pot weight, improved service life.
Embodiment 2:
The present invention further improves its purity, and the inner port for electro-thermal cooker of step ⑸ gained is put into vacuum drying oven, under vacuum condition, is heated to 1500 ℃～2000 ℃ (present embodiment is 1800 ℃), insulation 2h～3h (present embodiment is 2h).
Surplus with embodiment 1.
Claims (5)
1. the production method of an inner port for electro-thermal cooker, inner port for electro-thermal cooker comprises a pot body (1), and a pot body (1) adopts a carbon/carbon compound material to be processed into, and the surface of pot body (1) is provided with RESEARCH OF PYROCARBON compacted zone (2), it is characterized in that it comprises the following steps:
⑴ base: will make it to be combined into felt through acupuncture by net tire and the carbon cloth that carbon fiber is processed; Be wound in felt on the mould, cover one deck carbon cloth above that, cover one deck felt again; So crossover is placed and is made it compound through acupuncture, processes the inner port for electro-thermal cooker precast body of necessary requirement;
⑵ density: the inner port for electro-thermal cooker precast body of step ⑴ gained through the chemical vapour deposition (CVD) density, progressively increases its density and through graphitization processing, processes the inner port for electro-thermal cooker base substrate of necessary requirement;
⑶ purifying: the inner port for electro-thermal cooker base substrate of step ⑵ gained is put into high temperature furnace, under vacuum or protective atmosphere condition, add wherein impurity of heat abstraction;
⑷ machined: the inner port for electro-thermal cooker that step ⑶ gained inner port for electro-thermal cooker base substrate is machined to required form and size;
⑸ surface densification: step ⑷ gained inner port for electro-thermal cooker is put into high temperature furnace, adopt chemical gaseous phase depositing process, it is carried out surface densification handle.
2. according to the production method of the said inner port for electro-thermal cooker of claim 1; It is characterized in that for further improving its purity; With the inner port for electro-thermal cooker that step ⑸ gained is handled through surface densification, put into high temperature furnace, under vacuum condition, add wherein impurity of heat abstraction; Promptly under vacuum condition, be heated to 1500 ℃～2000 ℃, insulation 2h～3h.
3. according to the production method of claim 1 or 2 said inner port for electro-thermal cooker, it is characterized in that in step ⑴ that the surface density of said net tire is 20 g/ ㎡～90g/ ㎡, the surface density of carbon cloth is 200g/ ㎡～320g/ ㎡, and the apparent density of felt is 0.3g/cm
3～0.6g/cm
3, the inner port for electro-thermal cooker precast body of processing, its apparent density is 0.3g/cm
3～0.7g/cm
3
4. according to the production method of claim 1 or 2 said inner port for electro-thermal cooker, it is characterized in that in step ⑵ that the apparent density of inner port for electro-thermal cooker base substrate is 1.43g/cm
3～1.75g/cm
3
5. according to the production method of claim 1 or 2 said inner port for electro-thermal cooker; It is characterized in that in step ⑶; Described purifying is for to add wherein impurity of heat abstraction under vacuum or protective atmosphere condition, cleansing temp is 1800 ℃～2500 ℃, and temperature retention time is 2h～6h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010281068A CN101913897B (en) | 2010-09-14 | 2010-09-14 | Inner port for electro-thermal cooker and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010281068A CN101913897B (en) | 2010-09-14 | 2010-09-14 | Inner port for electro-thermal cooker and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101913897A CN101913897A (en) | 2010-12-15 |
| CN101913897B true CN101913897B (en) | 2012-10-17 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010281068A Active CN101913897B (en) | 2010-09-14 | 2010-09-14 | Inner port for electro-thermal cooker and production method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105686677B (en) * | 2014-11-25 | 2020-09-22 | 佛山市顺德区美的电热电器制造有限公司 | Inner pot for cooking utensil |
| CN105686676B (en) * | 2014-11-25 | 2020-04-03 | 佛山市顺德区美的电热电器制造有限公司 | Inner pot for cooking utensil |
| CN105455617A (en) * | 2016-01-04 | 2016-04-06 | 东莞劲胜精密组件股份有限公司 | Energy-saving carbon fiber pot and manufacturing method thereof |
| CN107296508B (en) * | 2016-04-15 | 2020-12-15 | 佛山市顺德区美的电热电器制造有限公司 | Graphite pot and manufacturing method thereof |
| WO2017177666A1 (en) * | 2016-04-15 | 2017-10-19 | 佛山市顺德区美的电热电器制造有限公司 | Graphite pot and manufacturing method therefor |
| CN106145949A (en) * | 2016-08-12 | 2016-11-23 | 广东伊莱特电器有限公司 | The preparation technology of a kind of graphitic carbon material and apply the inner container of electric cooker of this technique |
| CN106747551A (en) * | 2016-12-20 | 2017-05-31 | 湖南金博碳素股份有限公司 | Carbon/carbon compound material inner pan of electric cooker preparation method based on carbon fiber powder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442619Y (en) * | 2000-10-19 | 2001-08-15 | 温岭市倍得福电器有限公司 | High-strength composite bottom non-sticking lining pot |
| CN1814575A (en) * | 2005-02-05 | 2006-08-09 | 胡刚 | Method for preparing high-density carbon/carbon composite material |
| CN101319353A (en) * | 2008-05-20 | 2008-12-10 | 湖南金博复合材料科技有限公司 | Carbon/carbon composite material crucible pot and preparing technique thereof |
| CN101438932A (en) * | 2007-11-20 | 2009-05-27 | 珠海格力电器股份有限公司 | Inner pot of electric cooker and manufacturing method thereof |
-
2010
- 2010-09-14 CN CN201010281068A patent/CN101913897B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442619Y (en) * | 2000-10-19 | 2001-08-15 | 温岭市倍得福电器有限公司 | High-strength composite bottom non-sticking lining pot |
| CN1814575A (en) * | 2005-02-05 | 2006-08-09 | 胡刚 | Method for preparing high-density carbon/carbon composite material |
| CN101438932A (en) * | 2007-11-20 | 2009-05-27 | 珠海格力电器股份有限公司 | Inner pot of electric cooker and manufacturing method thereof |
| CN101319353A (en) * | 2008-05-20 | 2008-12-10 | 湖南金博复合材料科技有限公司 | Carbon/carbon composite material crucible pot and preparing technique thereof |
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| CN101913897A (en) | 2010-12-15 |
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Address after: 413000 Hunan province Yiyang Yingbin Road No. 2 Patentee after: Hunan gold carbon Limited by Share Ltd Address before: 413000 Hunan province Yiyang Yingbin Road No. 2 Patentee before: Hunan KBCarbon Composite Science and Technology Co., Ltd. |