CN104034159B - A kind of C/C composite cvd furnace - Google Patents
A kind of C/C composite cvd furnace Download PDFInfo
- Publication number
- CN104034159B CN104034159B CN201410259458.9A CN201410259458A CN104034159B CN 104034159 B CN104034159 B CN 104034159B CN 201410259458 A CN201410259458 A CN 201410259458A CN 104034159 B CN104034159 B CN 104034159B
- Authority
- CN
- China
- Prior art keywords
- workpiece
- electrode bar
- base plate
- heat
- stock column
- 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.)
- Active
Links
Landscapes
- Furnace Charging Or Discharging (AREA)
Abstract
A kind of C/C composite cvd furnace, each electrode bar between the base plate and the base plate of furnace shell of heat-preserving container, and makes the lower end of each electrode bar be connected with the positive pole of power supply and negative pole respectively; The upper end of each electrode bar is connected with the conduction charging tray of each workpiece stock column respectively.Conduction panel is laid respectively at stock column top.When stacking stock column, the bottom that conduction charging tray is positioned at stock column places outer shroud conductive layer, workpiece, center conducting layer, workpiece and outer shroud conductive layer, from the bottom to top successively until complete stacking of this stock column.In the present invention, connection between each conductive soleplate, conducting ring or sheet, workpiece and conduction panel relies on self gravitation pressing completely and forms current path, eliminate complicated, the inconvenient installation of the bindiny mechanism that in prior art, clipping connection brings, the problem of the workpiece current lead-through poor reliability that cause different from clamping device harmomegathus characteristic, have to install and connect the advantage easy, current lead-through reliability is high, and structure simplifies, low cost of manufacture.
Description
Technical field
The invention belongs to the preparing technical field of C/C composite, specifically a kind of preparation method of direct-heating type C/C composite.
Background technology
The preparation method of C/C composite mainly contains indirect from heat form point and directly heats two large classes.
Indirect is the resistance utilizing heater, makes electric current flow through heater and first heats heater, then utilize the heat radiation of heater, conducts heated parts again, the class methods making workpiece reach depositing temperature to carry out depositing.The method have temperature homogeneity high, can the advantage of many, the technology maturation of heated parts type, be widely adopted in C/C technical field of composite preparation.
The international main C/C composite such as current SGL, goodrich, messier, honeywell is prepared enterprise and is all adopted indirect heating type equipment to carry out the production of C/C composite, but these class methods also exist manufacturing cycle is long, energy consumption is large, Preparation equipment is complicated, preparation cost is high problem.
Direct heating utilizes workpiece self-resistance characteristic, allows electric current directly flow through workpiece and carry out heated parts, and energy, due to the middle heat transmitting procedure of heater having lacked indirect method, directly can be flowed to workpiece by the method.These class methods have the advantage that device structure significantly simplifies, firing rate is fast, energy utilization rate is high, some research institutions have carried out this respect research and development, achieve certain progress, but it is single also to there is heated parts version, the problems such as workpiece and Electrode connection poor reliability, are difficult to industrial application.
Wherein the Luo Rui of BJ University of Aeronautics & Astronautics is full of team and has invented the carbon carbon composite preparation method of direct heat form, is disclose a kind of electrothermal way orienting infiltration in the innovation and creation of 200710121764.6 to amass the technique preparing carbon/carbon component at application number.This invention is fixed on by workpiece suspension to stretch into on the electrode cantilever of cantilever in stove, and another electrode of workpiece lower end and furnace bottom is connected to form closed electrical loop, and two electrifying electrodes make electric current flow through workpiece thus heated parts deposits.The method of this invention shortens C/C composite manufacturing cycle, but this invention is due to the limitation of its structure, limits the method and can only deposit preparation line style or band class workpiece, be difficult to process plate, block-type workpiece, hinder its industrial applications.
Summary of the invention
For overcoming the shortcoming that the manufacturing cycle existed in prior art is long, equipment is complicated or made workpiece form is single, the present invention proposes a kind of C/C composite cvd furnace.
The present invention includes furnace shell, electrode bar, base plate, heat-preserving container, heat-preserving cover plate, electrode plate insulation sleeve, conduction charging tray, conduction panel, outer shroud conductive layer and center conducting layer; Described outer shroud conductive layer is made up of outer conducting ring and insulating trip, and center conducting layer is made up of dead ring and interior conducting strip.Described electrode bar, conduction charging tray are all identical with the quantity of stock column with the quantity of conduction panel.The quantity of described outer shroud conductive layer and center conducting layer is determined according to the number of plies of each stock column.
Described heat-preserving container is positioned at furnace shell.On the base plate of this heat-preserving container and on the base plate of furnace shell, all have electrode bar via hole, and electrode bar via hole on the base plate of electrode bar via hole on the base plate of described heat-preserving container and furnace shell is concentric.Described each electrode bar between the base plate and the base plate of furnace shell of heat-preserving container, and makes the lower end of each electrode bar pass electrode bar via hole on the base plate of furnace shell respectively, is connected respectively with the positive pole of power supply and negative pole; The upper end of each electrode bar wears the base plate of heat-preserving container respectively, is connected respectively in heat-preservation cylinder with the conduction charging tray of each stock column.Smaller diameter end all by insulating sleeve between described electrode bar and the base plate of housing, between electrode bar and the base plate of heat-preserving container insulate.Conduction panel is laid respectively at stock column top.
In described outer shroud conductive layer, insulating trip is placed in the ring of outer conducting ring, and in described center conducting layer, interior conducting strip is placed in the ring of dead ring.
Described outer conducting ring is identical with the conductive area of interior conducting strip.Wherein:
The external diameter of described outer conducting ring is identical with the diameter of workpiece.The width of described outer conducting ring endless belt is 0.05 times of this outer conducting ring external diameter.The internal diameter of the external diameter≤outer conducting ring of insulating trip, and described outer conducting ring and insulating trip equal thickness.
The external diameter of described dead ring is identical with the diameter of workpiece.The internal diameter of the diameter≤dead ring of interior conducting strip, and described dead ring and interior conducting strip equal thickness.
The limiting stand that the middle part of described each electrode bar is protruded by radial direction respectively.Insulating sleeve is respectively installed with between the upper surface and the base plate lower surface of heat-preserving container of described limiting stand, between the lower surface and the upper surface of furnace shell base plate of described limiting stand; The electrode bar via hole that the smaller diameter end of described each insulating sleeve is respectively charged on Housing Base is interior with in the electrode bar via hole on the base plate of heat-preserving container.
The external diameter of described conduction charging tray is identical with the diameter of workpiece.The sleeve pipe of protrusion is had, for electrode bar grafting and the conducting keeping between the two at the lower surface center of this conduction charging tray.
Each conduction charging tray is positioned at the lowermost layer of each stock column.When stacking stock column, an outer shroud conductive layer is placed in the upper surface of each conduction charging tray.Ground floor workpiece is laid at the upper surface of this outer shroud conductive layer.Lay a center conducting layer at the upper surface of described workpiece, and lay second layer workpiece at described center conducting layer upper surface.Stack process by described, constitute first group of workpiece heat unit.Repeat above-mentionedly to stack process, form all the other respectively group workpiece heat unit respectively.Described each group of workpiece heat unit is stacked, forms a stock column, and lay one deck outer shroud conductive layer at the upper surface of this stock column.
According to the described mode stacking stock column, carry out stacking of second stock column.
Lay conduction panel respectively completing the stock column top after stacking.
Due to the technique scheme that the present invention takes, the connection between each conductive soleplate, conducting ring or sheet, workpiece and conduction panel is made to rely on the pressing of above-mentioned parts self gravitation completely and form current path, eliminate complicated, the inconvenient installation of the bindiny mechanism that in prior art, clipping connection brings, the problem of the workpiece current lead-through poor reliability that cause different from clamping device harmomegathus characteristic, have to install and connect the advantage easy, current lead-through reliability is high, and structure simplifies, low cost of manufacture.
The adjustment of the firing point that the present invention utilizes the conducting ring of diverse location setting between workpiece or sheet to be formed realizes adjustment heating system resistance to setting value, thus the power supply overcoming the resistance of workpiece own too small or excessive caused mates problem improperly, realizes the object of high-efficiency heating workpiece.
The present invention adjusts the resistance of this heating system by the conducting ring between adjustment workpiece or the conductive section sum conducting ring of sheet or the thickness of sheet.Thus the power supply overcoming the resistance of workpiece own too small or excessive caused mates problem improperly, realizes the object of high-efficiency heating workpiece.Meanwhile, the heating effect of resistance that conducting ring or sheet have due to itself when conducting workpiece flows through electric current and the indirect that can realize conducting ring or sheet near zone workpiece of generating heat.
Present invention utilizes the resistance that electric current directly flows through workpiece and workpiece self and realize direct heating to workpiece inside and outside, higher than the outer hot indirect type efficiency of heating surface, workpiece core is easier to be better by temperature homogeneity in heated parts.And due to outer surface of workpiece close to furnace shell thus heat radiation faster temperature lower slightly, in heating process, heat is easier accumulates at workpiece core, and make workpiece core temperature a little more than surface of the work, simultaneously because workpiece high-temperature area deposition velocity is faster, achieve deposition process and carried out to surface of the work by workpiece core.It is too fast that the technique scheme taked solves the surface of the work deposition that existing external-heat heating deposition method causes, and easily crust hinders the problem of workpiece core deposition.
Accompanying drawing explanation
Fig. 1 is the axle sectional views such as directly-heated type cvd furnace;
Fig. 2 is the structural representation of directly-heated type cvd furnace;
Fig. 3 be in the present invention in stock column electric current flow to schematic diagram;
Fig. 4 be a stock column stack schematic diagram;
Fig. 5 is the axis side view such as grade of electrode bar;
Fig. 6 is the axis side view such as grade of insulating sleeve;
Fig. 7 is the sectional view such as axle such as grade of conduction charging tray.
In accompanying drawing:
1. furnace shell; 2. the first electrode bar; 3. the second electrode bar; 4. base plate; 5. heat-preservation cylinder; 6. heat-preserving cover plate; 7. insulating sleeve; 8 conduction panels; 9. conduction charging tray; 10. outer conducting ring; 11. insulating trips; 12. workpiece; Conducting strip in 13.; 14. dead rings.
Detailed description of the invention
The present embodiment is a kind of C/C composite cvd furnace of extra quality post.
The present embodiment comprises furnace shell 1, electrode bar, base plate 4, heat-preserving container 5, heat-preserving cover plate 6, electrode plate insulation sleeve 7, conduction charging tray 9, outer conducting ring 10, insulating trip 11, workpiece 12, interior conducting strip 13, dead ring 14 and conduction panel 8.The quantity of described electrode bar is identical with the quantity of stock column, and in the present embodiment, stock column has two, and the quantity of electrode bar corresponding is with it also two, is respectively the first electrode bar 2 and the second electrode bar 3.Described conduction charging tray 9 is also identical with the quantity of stock column with the quantity of conduction panel 8.The quantity of described outer conducting ring 10, insulating trip 11, interior conducting strip 13 and dead ring 14 is determined according to the number of plies of each stock column.
Described heat-preserving container 5 is positioned at furnace shell 1.On the base plate 4 of this heat-preserving container and on the base plate of furnace shell 1, all have electrode bar via hole, and electrode bar via hole on the base plate of electrode bar via hole on the base plate 4 of described heat-preserving container and furnace shell 1 is concentric.Described first electrode bar 2 and the second electrode bar 3 are between the base plate 4 and the base plate of furnace shell 1 of heat-preserving container, and make the lower end of this first electrode bar 2 and the second electrode bar 3 pass electrode bar via hole on the base plate of furnace shell respectively, be connected with the positive pole of power supply and negative pole respectively; The upper end of this first electrode bar 2 and the second electrode bar 3 wears the base plate of heat-preserving container respectively, is connected respectively in heat-preservation cylinder with the conduction charging tray 9 of each stock column.Smaller diameter end all by insulating sleeve between described electrode bar and the base plate of housing, between electrode bar and the base plate 4 of heat-preserving container insulate.
Each conduction charging tray is positioned at the lowermost layer of each stock column.When stacking stock column, described outer conducting ring 10 is placed in the upper surface of each conduction charging tray 9.In the ring of this outer conducting ring 10, there is insulating trip 11, jointly constitute outer shroud conductive layer by outer conducting ring 10 and insulating trip 11; Ground floor workpiece 12 is laid at the upper surface of this outer shroud conductive layer.Dead ring 14 is placed in the upper surface of described ground floor workpiece 12, lays interior conducting strip 13, jointly constitute center conducting layer by dead ring 14 and interior conducting strip 13 in the ring of described dead ring 14; Second layer workpiece is laid at described center conducting layer upper surface.Stack process by described, constitute first group of workpiece heat unit.Repeat above-mentionedly to stack process, form all the other respectively group workpiece heat unit respectively.Described each group of workpiece heat unit is stacked, forms a stock column, and lay one deck outer shroud conductive layer at the upper surface of this stock column.In a stock column, the quantity basis designing requirement of workpiece heat unit is determined.
According to the described mode stacking stock column, carry out stacking of second stock column.
Lay conduction panel 8 respectively completing the stock column top after stacking.
At the limiting stand that the middle part of each electrode bar is protruded by radial direction respectively.Between the upper surface and the base plate lower surface of heat-preserving container of described limiting stand, there is insulating sleeve 7, between the lower surface and the upper surface of furnace shell base plate of described limiting stand, also have insulating sleeve 7.Described each insulating sleeve is all sleeved on described electrode bar, and the electrode bar via hole that the smaller diameter end of each insulating sleeve is respectively charged on Housing Base is interior with in the electrode bar via hole on the base plate of heat-preserving container.
Described conduction charging tray 10 is discoid, and external diameter is identical with the diameter of workpiece.The sleeve pipe of protrusion is had, for electrode bar grafting and the conducting keeping between the two at the lower surface center of this conduction charging tray 10.
Outer conducting ring 10 is identical with the conductive area of interior conducting strip 13.Wherein:
The external diameter of described outer conducting ring 10 is identical with the diameter of workpiece.The width of described outer conducting ring 10 endless belt is 0.05 times of this outer conducting ring external diameter.The internal diameter of the external diameter≤outer conducting ring 10 of insulating trip 11, and described outer conducting ring 10 and insulating trip 11 equal thickness.
The external diameter of described dead ring 14 is identical with the diameter of workpiece.The internal diameter of the diameter≤dead ring 14 of interior conducting strip 13, and described dead ring 14 and interior conducting strip 13 equal thickness.
Described insulating sleeve 7 adopts fiber to make, and its external peripheral surface is stepped.The internal diameter of insulating sleeve 7, slightly larger than the external diameter of electrode bar, makes matched in clearance therebetween.The internal diameter of the internal diameter of electrode bar via hole on the external diameter of little external diameter end of insulating sleeve 7 and the base plate 4 of heat-preserving container and the electrode bar via hole on the base plate of housing is identical, and the smaller diameter end making described insulating sleeve 7 respectively and the electrode bar via hole on the base plate 4 of heat-preserving container and interference engagement between the electrode bar via hole on base plate.
Described heat-preserving container 5 is positioned at furnace shell 1.On the base plate 4 of this heat-preserving container and on the base plate of furnace shell 1, all have electrode bar via hole, and electrode bar via hole on the base plate of electrode bar via hole on the base plate 4 of described heat-preserving container and furnace shell 1 is concentric.Described first electrode bar 2 and the second electrode bar 3 are between the base plate 4 and the base plate of furnace shell 1 of heat-preserving container, and make the lower end of this first electrode bar 2 and the second electrode bar 3 pass electrode bar via hole on the base plate of furnace shell respectively, be connected with the positive pole of power supply and negative pole respectively; The upper end of this first electrode bar 2 and the second electrode bar 3 wears the base plate of heat-preserving container respectively, is connected respectively in heat-preservation cylinder with the conduction charging tray 9 of each stock column.All insulated by insulation sleeve between described electrode bar and the base plate of housing, between electrode bar and the base plate 4 of heat-preserving container.
To stack a stock column, the process that conduction charging tray stacks stock column is described:
An outer conducting ring 10 is placed in conduction charging tray 9 upper surface, an insulating trip 11 is placed in the ring of this outer conducting ring 10, constitute first time outer shroud conductive layer.Ground floor workpiece 12 is placed on the upper surface of described ground floor outer shroud conductive layer.Lay a dead ring 14 at the upper surface of ground floor workpiece 12, an interior conducting strip 13 is placed in the ring of this dead ring 14, constitutes ground floor center conducting layer.Second layer workpiece is placed at described ground floor center conducting layer upper surface.Lay another outer conducting ring 10 at the upper surface of second layer workpiece 12, and another insulating trip 11 is placed in the ring of this outer conducting ring 10, constitute second layer outer shroud conductive layer.Third layer workpiece 12 is placed on the upper surface of described outer second layer conductive layer.Lay another dead ring 14 at the upper surface of third layer workpiece, conducting strip in another 13 is placed in the ring of this dead ring 14, constitute second layer center conducting layer.Third layer workpiece 12 is placed on the upper surface of described outer second layer internal planes.Repeat said process, until according to designing requirement, complete stacking of all workpiece, and the in the end good conduction panel 8 of the surface mount of one deck workpiece, and make each conduction panel 8 and the good conducting of workpiece on each conductive plate, define stock column.
Claims (5)
1. a C/C composite cvd furnace, is characterized in that, comprises furnace shell, electrode bar, base plate, heat-preservation cylinder, heat-preserving cover plate, insulating sleeve, conduction charging tray, conduction panel, outer shroud conductive layer and center conducting layer; Described outer shroud conductive layer is made up of outer conducting ring and insulating trip, and center conducting layer is made up of dead ring and interior conducting strip; Described electrode bar, conduction charging tray are all identical with the quantity of workpiece stock column with the quantity of conduction panel; The quantity of described outer shroud conductive layer and center conducting layer is determined according to the number of plies of each workpiece stock column;
Described heat-preservation cylinder is positioned at furnace shell; On the base plate of this heat-preservation cylinder and on the base plate of furnace shell, all have electrode bar via hole, and electrode bar via hole on the base plate of electrode bar via hole on the base plate of described heat-preservation cylinder and furnace shell is concentric; Described each electrode bar between the base plate and the base plate of furnace shell of heat-preservation cylinder, and makes the lower end of each electrode bar pass electrode bar via hole on the base plate of furnace shell respectively, is connected respectively with the positive pole of power supply and negative pole; The upper end of each electrode bar is each passed through the base plate of heat-preservation cylinder, is connected respectively in heat-preservation cylinder with the conduction charging tray of each workpiece stock column; Smaller diameter end all by insulating sleeve between described electrode bar and the base plate of housing, between electrode bar and the base plate of heat-preservation cylinder insulate; Conduction panel is laid respectively at stock column top.
2. C/C composite cvd furnace as claimed in claim 1, it is characterized in that, in described outer shroud conductive layer, insulating trip is placed in the ring of outer conducting ring, and in described center conducting layer, interior conducting strip is placed in the ring of dead ring;
Described outer conducting ring is identical with the conductive area of interior conducting strip; Wherein:
The external diameter of described outer conducting ring is identical with the diameter of workpiece; The width of described outer conducting ring endless belt is 0.05 times of this outer conducting ring external diameter; The internal diameter of the external diameter≤outer conducting ring of insulating trip, and described outer conducting ring and insulating trip equal thickness;
The external diameter of described dead ring is identical with the diameter of workpiece; The internal diameter of the diameter≤dead ring of interior conducting strip, and described dead ring and interior conducting strip equal thickness.
3. C/C composite cvd furnace as claimed in claim 1, is characterized in that, the middle part of described each electrode bar has the radial limiting stand protruded respectively; Insulating sleeve is respectively installed with between the upper surface and the base plate lower surface of heat-preservation cylinder of described limiting stand, between the lower surface and the upper surface of furnace shell base plate of described limiting stand; The electrode bar via hole that the smaller diameter end of described each insulating sleeve is respectively charged on Housing Base is interior with in the electrode bar via hole on the base plate of heat-preservation cylinder.
4. C/C composite cvd furnace as claimed in claim 1, it is characterized in that, the external diameter of described conduction charging tray is identical with the diameter of workpiece; The sleeve pipe of protrusion is had, for electrode bar grafting and the conducting keeping between the two at the lower surface center of this conduction charging tray.
5. C/C composite cvd furnace as claimed in claim 1, is characterized in that, each conduction charging tray is positioned at the lowermost layer of each stock column; When stacking stock column, an outer shroud conductive layer is placed in the upper surface of each conduction charging tray; Ground floor workpiece is laid at the upper surface of this outer shroud conductive layer; Lay a center conducting layer at the upper surface of described workpiece, and lay second layer workpiece at described center conducting layer upper surface; Stack process by described, constitute first group of workpiece heat unit; Repeat above-mentionedly to stack process, form all the other respectively group workpiece heat unit respectively; Described each group of workpiece heat unit is stacked, forms a stock column, and lay one deck outer shroud conductive layer at the upper surface of this stock column;
According to the described mode stacking stock column, carry out stacking of second stock column;
Lay conduction panel respectively completing the stock column top after stacking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259458.9A CN104034159B (en) | 2014-06-06 | 2014-06-06 | A kind of C/C composite cvd furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259458.9A CN104034159B (en) | 2014-06-06 | 2014-06-06 | A kind of C/C composite cvd furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104034159A CN104034159A (en) | 2014-09-10 |
| CN104034159B true CN104034159B (en) | 2016-01-20 |
Family
ID=51465033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410259458.9A Active CN104034159B (en) | 2014-06-06 | 2014-06-06 | A kind of C/C composite cvd furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104034159B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113774365B (en) * | 2021-08-09 | 2024-08-06 | 山西中电科新能源技术有限公司 | Self-heating carbon-carbon vapor deposition furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5480678A (en) * | 1994-11-16 | 1996-01-02 | The B. F. Goodrich Company | Apparatus for use with CVI/CVD processes |
| CN1158209A (en) * | 1994-07-29 | 1997-08-27 | 热力学美国有限公司 | Resistance heating element with large-area, thinfilm and method |
| CN1202535A (en) * | 1997-05-09 | 1998-12-23 | 住友重机械工业株式会社 | Plasma film deposition apparatus capable of stably depositing variety of materials having variety of characteristics |
| CN1521836A (en) * | 2003-01-27 | 2004-08-18 | ���ǿƼ��ɷ�����˾ | Method of making semiconductor components |
| CN1560334A (en) * | 2004-02-17 | 2005-01-05 | 周永宗 | Apparatus for annealing of crystal with high temp. resistance |
| CN2903095Y (en) * | 2006-04-07 | 2007-05-23 | 烟台冶金新材料研究所 | Carbon tube type multiple material post large gas phase deposition furnace for mfg. airplane carbon braking disc |
-
2014
- 2014-06-06 CN CN201410259458.9A patent/CN104034159B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158209A (en) * | 1994-07-29 | 1997-08-27 | 热力学美国有限公司 | Resistance heating element with large-area, thinfilm and method |
| US5480678A (en) * | 1994-11-16 | 1996-01-02 | The B. F. Goodrich Company | Apparatus for use with CVI/CVD processes |
| CN1202535A (en) * | 1997-05-09 | 1998-12-23 | 住友重机械工业株式会社 | Plasma film deposition apparatus capable of stably depositing variety of materials having variety of characteristics |
| CN1521836A (en) * | 2003-01-27 | 2004-08-18 | ���ǿƼ��ɷ�����˾ | Method of making semiconductor components |
| CN1560334A (en) * | 2004-02-17 | 2005-01-05 | 周永宗 | Apparatus for annealing of crystal with high temp. resistance |
| CN2903095Y (en) * | 2006-04-07 | 2007-05-23 | 烟台冶金新材料研究所 | Carbon tube type multiple material post large gas phase deposition furnace for mfg. airplane carbon braking disc |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104034159A (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102054952B (en) | Insulation can special for sodium-sulphur battery | |
| CN104638982B (en) | Thermoelectric generator | |
| CN106123306A (en) | A kind of electric heater of smart allocation heating power | |
| CN104624765A (en) | Rotary heating and temperature control device in combined spinning process of dissimilar metal | |
| CN203236806U (en) | Heating system for medium-type laminating machine | |
| CN104034159B (en) | A kind of C/C composite cvd furnace | |
| CN106532180A (en) | Battery pack with heat absorption sleeves and power battery with battery pack | |
| CN105449313B (en) | Heating assembly for power battery | |
| CN106278343A (en) | A kind of manufacture method of giant chemical vapour deposition resistance furnace C/C heater | |
| CN204168505U (en) | A kind of heating plate | |
| CN207262996U (en) | One kind is variable to flow to formula solid heat storage device | |
| CN204550075U (en) | There is the silicon tetrachloride conducting furnace of ladder power | |
| CN105018730A (en) | Electro-magnetic induction internal thermal type metallic magnesium vacuum reduction furnace | |
| CN107732267A (en) | The big L/D ratio thermal cell used under hot environment | |
| CN201690627U (en) | Electric heating plate | |
| CN205016602U (en) | Battery block structure | |
| CN203550534U (en) | Microwave-assisted sintering furnace | |
| CN208222655U (en) | A kind of stacked heating electromagnetic oven and heating system | |
| CN105747896A (en) | Alternating current and battery shared electric baking oven | |
| CN204451155U (en) | High-frequency electromagnetic induction sheet material machine die head heater | |
| CN207491234U (en) | A kind of siccative electric heater unit | |
| CN104197403A (en) | Capillary pipe network floor heating system capable of intelligently distributing hot water | |
| CN101906609B (en) | Thermal evaporation device | |
| CN203274268U (en) | Far infrared heating device for vertical coil pipe | |
| CN204026822U (en) | A kind of floor heater of capillary network system that can smart allocation hot water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |