CN2281987Y - High sealed heating room for vacuum quenching furnace - Google Patents
High sealed heating room for vacuum quenching furnace Download PDFInfo
- Publication number
- CN2281987Y CN2281987Y CN 96223053 CN96223053U CN2281987Y CN 2281987 Y CN2281987 Y CN 2281987Y CN 96223053 CN96223053 CN 96223053 CN 96223053 U CN96223053 U CN 96223053U CN 2281987 Y CN2281987 Y CN 2281987Y
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- carbon felt
- main body
- ceramic fiber
- heating chamber
- wall
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model relates to a high sealed heating chamber for a vacuum quenching furnace, mainly composed of a body, a chamber door, a chamber cover, a heating body and a material table. The inner space enclosed by the heating body is an effective heating area, the inner wall and the side wall of the body of the heating chamber, the chamber cover, the inner wall of the chamber door are provided with a thermal insulation heat-insulating layer composed of a layer structure mutually superposed by carbon felt layers and ceramic fiber layers, and the edge of the outermost carbon felt layer of the thermal insulation heat-insulating layer is bent to cover the seams of the longitudinal and the lateral carbon felt layers and the ceramic fiber layers The thermal insulation and sealing effects of the overall structure of the heating chamber realized in the utility model effectively homogeneously increases the furnace temperature to plus or minus 3DEG. C, simultaneously increases the heat efficiency of the vacuum quenching furnace, and has obvious energy-saving effect.
Description
The utility model relates to the heat-treatment quenching stove, particularly a kind of body of heater in the vacuum quencher is played insulated heat, the workpiece in effective heating zone is played the high leakproofness vacuum hardening furnace heating chamber of heat effect.
Vacuum oven is one of important directions of Equipment for Heating Processing development, and domestic after early eighties enters ordinary production, very big variation has all taken place for the structure of vacuum quencher and profile.Wherein heat effect is played in effective heating zone, with the fastest developing speed to the vacuum hardening furnace heating chamber that the vacuum hardening furnace body plays a role in insulation.First-generation vacuum hardening furnace heating chamber from early eighties, in effective heating zone, Graphite cloth's heating, temperature uniformity is ± 7.5 ℃, Graphite cloth's life-span is short, produce 150～200 heats and just must change, develop into the s-generation vacuum hardening furnace heating chamber of the early 1990s, in effective heating zone, the graphite rod heating, temperature uniformity is ± 5 ℃, and its stopping property is slightly improved, and the heating member life-span then significantly improves.Basically rest on this level so far.
Along with the development of vacuum quencher technology, the temperature uniformity in effective heating zone is proposed more and more higher requirement, improve homemade vacuum quencher temperature uniformity and become one of current urgent task.
The purpose of this utility model provides a kind of high leakproofness vacuum hardening furnace heating chamber, has the one-piece construction sealing effectiveness, adopts the graphite rod heating.At effective heating zone temperature uniformity be ± 3 ℃, and it is supporting and carry out the transformation of vacuum hardening furnace heating chamber for the user who has vacuum quencher to be mainly each vacuum quencher manufacturing firm vacuum quencher.
Concrete solution of the present utility model is as follows:
A kind of high leakproofness vacuum hardening furnace heating chamber, mainly form by main body, chamber door, chamber cap, heating member, material platform, the internal space that heating member surrounded is effective heating zone, be provided with the insulating of forming with the layered struture of mutual superposition with carbon felt, ceramic fiber layer at heating chamber main body inner wall, sidewall and chamber cap, chamber door inwall, the outermost layer carbon felt edge bending of described insulating, the seam of longitudinal and transverse carbon felt, ceramic fiber layer is hidden, make heating chamber realize integrally-built adiabatic sealing.
Embodiment one, the flanging of described carbon felt, ceramic fiber layer structure comprises: be layed in the outermost carbon felt of main body inner wall two ends and turn back and block layered suture between its carbon felt and ceramic fiber composite bed, make it be abutted against carbon felt and ceramic fiber composite bed in the left and right sidewall of main body, and connect by the screw pressing plate it be pressed on the interior ring limit of housing, on the main body inner wall outermost layer carbon felt end that simultaneously main body wall outermost layer carbon felt flanging is added to the seam covering of heating chamber main body and left and right sidewall.
Embodiment two, and the flanging of described carbon felt, ceramic fiber layer connects structure and comprises: be layed in the outermost carbon felt periphery of main body wall invagination, cover main body inner wall carbon felt, ceramic fiber layer and main body wall carbon felt, the seam between the ceramic fiber layer.
During enforcement, the carbon felt of described heating chamber door closure inwall setting, ceramic fiber composite bed are built on the carbon felt that is added to main body wall, the ceramic fiber composite bed, connect by screw it is compressed.
The utility model has following actively useful effect:
1, improves the temperature uniformity of effective heating zone, thereby improved thermal treatment quality.
This adiabatic sealed structure of the utility model high leakproofness vacuum hardening furnace heating chamber, effective heating zone is obtained ± 3 ℃ temperature uniformity, effectively heating zone temperature uniformity and the thermal insulation of vacuum hardening furnace heating chamber are sealed with much relations, common adiabatic stopping property better, effectively the heating zone temperature uniformity is just better.
2, improved the thermo-efficiency of vacuum quencher, obvious energy saving effect has been arranged.
This adiabatic sealed structure of the utility model high leakproofness vacuum hardening furnace heating chamber, be actually on the basis of existing vacuum hardening furnace heating chamber thermal insulation material and special structure design, accomplished the integrally-built adiabatic sealing effectiveness of vacuum hardening furnace heating chamber, make the effective heating zone of vacuum hardening furnace heating chamber temperature uniformity from ± 5 ℃ bring up to ± 3 ℃, thereby also improved the heating efficiency of vacuum quencher indirectly.
Structure and working process below in conjunction with description of drawings the utility model high leakproofness vacuum hardening furnace heating chamber.
Fig. 1 is the utility model high leakproofness vacuum hardening furnace heating chamber structural representation.
Fig. 2 is the A-A cross sectional view of Fig. 1.
The same Fig. 1 of Fig. 3 is another embodiment.
High leakproofness vacuum hardening furnace heating chamber of the present utility model, mainly form by main body 6, chamber door 2, chamber cap 1, heating member 3, material platform 4, the internal space that heating member surrounded is effective heating zone 5, be provided with the insulating of forming with the layered struture of mutual superposition with carbon felt, ceramic fiber layer 9,10,11 at heating chamber main body inner wall, sidewall and chamber cap, chamber door inwall, the outermost layer carbon felt edge bending of described insulating, the seam of longitudinal and transverse carbon felt, ceramic fiber layer is hidden, make heating chamber realize integrally-built adiabatic sealing.
In the embodiment in figure 1, the flanging of described carbon felt, ceramic fiber layer structure comprises: be layed in the outermost carbon felt of main body inner wall two ends 12 and turn back and block layered suture between carbon felt and ceramic fiber composite bed, make it be abutted against carbon felt and ceramic fiber composite bed 10,11 in the left and right sidewall of main body, and connect it is pressed on the interior ring limit 18 of housing by screw 16 pressing plates 17 and see Fig. 2, on the main body inner wall outermost layer carbon felt end that simultaneously main body wall outermost layer carbon felt 13 flangings is added to heating chamber main body and the covering of left and right sidewall seam.
In the embodiments of figure 3, the flanging of described carbon felt, ceramic fiber layer connection structure comprises: be layed in the outermost carbon felt 12 peripheral invaginations of main body wall, cover the seam between main body inner wall carbon felt, ceramic fiber layer 10,11 and main body wall carbon felt, the ceramic fiber layer 9.
During enforcement, described heating chamber door closure 1 inwall is arranged to be built on the carbon felt that is added to main body wall, the ceramic fiber composite bed 10 by carbon felt, ceramic fiber composite bed 14, connects by screw 15 it is compressed.
The working process of present embodiment high leakproofness vacuum hardening furnace heating chamber is as follows:
As mould is carried out vacuum heat treatment, at first open vacuum quencher gate valve thermal insulation layer 8 or vacuum hardening furnace heating chamber door 1, by truck pending mould is delivered in effective heating zone 5, be placed on the vacuum hardening furnace heating chamber material platform 4, withdraw from truck then, close vacuum quencher gate valve thermal insulation layer 8 or vacuum hardening furnace heating chamber door 1.Pending like this mould be placed to one with vacuum quencher in the heat insulation of furnace body sealed space in.According to the requirement of mould vacuum heat treatment process, mould is carried out heating, start the power supply of vacuum hardening furnace heating chamber heating member 3, under vacuum, vacuum hardening furnace heating chamber heating member 3 to around radiative transfer, be radiated the heat on carbon felt and the ceramic fiber composite bed, because carbon felt and ceramic fiber thermal conductivity are very low, and the not hot short circuit of heat radiation outside the vacuum hardening furnace heating chamber again, so radiation is got back on the workpiece that needs heating again.The heat that sends of vacuum hardening furnace heating chamber 3 all is limited in the high leakproofness vacuum hardening furnace heating chamber basically like this, and the temperature uniformity in effective heating zone be limited in ± 3 ℃ within.Be heated to 600 ℃ of insulations 1.5 hours, continue to be heated to 850 ℃ of insulations 1 hour then, be heated to 1020 ℃ of insulations 3 hours at last.After the workpiece heat tracing is finished, close the power supply of vacuum hardening furnace heating chamber heating member 3, start vacuum quencher gate valve thermal insulation layer 8, the mould of having handled well is taken away from vacuum hardening furnace heating chamber material platform 4, close vacuum quencher gate valve thermal insulation layer 8 then by truck.Perhaps allow workpiece with vacuum hardening furnace heating chamber vacuum cooling.
The utility model high leakproofness vacuum hardening furnace heating chamber is suitable for quench the heating chamber that plays adiabatic heat effect in stove, vacuum brazing furnace, the vacuum sintering furnace equal vacuum quenching furnance of double-chamber vacuum oil vapour.
Claims (4)
1. high leakproofness vacuum hardening furnace heating chamber, mainly form by main body, chamber door, chamber cap, heating member, material platform, the internal space that heating member surrounded is effective heating zone, be provided with the insulating of forming with the layered struture of mutual superposition with carbon felt, ceramic fiber layer at heating chamber main body inner wall, sidewall and chamber cap, chamber door inwall, it is characterized in that: the outermost layer carbon felt edge bending of described insulating, the seam of longitudinal and transverse carbon felt, ceramic fiber layer is hidden, make heating chamber realize integrally-built adiabatic sealing.
2. high leakproofness vacuum hardening furnace heating chamber as claimed in claim 1, it is characterized in that: described carbon felt, the flanging of ceramic fiber layer structure comprises: be layed in the outermost carbon felt of main body inner wall two ends and turn back and block layered suture between carbon felt and ceramic fiber composite bed, it is abutted against in a main body left side, carbon felt and ceramic fiber composite bed in the right side wall, and connect by the screw pressing plate it is pressed on the interior ring limit of housing, simultaneously main body wall outermost layer carbon felt flanging is added on the main body inner wall outermost layer carbon felt end, with a heating chamber main body and a left side, the seam of right side wall hides.
3. high leakproofness vacuum hardening furnace heating chamber as claimed in claim 1, it is characterized in that: the flanging of described carbon felt, ceramic fiber layer connects structure and comprises: be layed in the outermost carbon felt periphery of main body wall invagination, cover main body inner wall carbon felt, ceramic fiber layer and main body wall carbon felt, the seam between the ceramic fiber layer.
4. high leakproofness vacuum hardening furnace heating chamber as claimed in claim 1, it is characterized in that: the carbon felt of described heating chamber door closure inwall setting, ceramic fiber composite bed are built on the carbon felt that is added to main body wall, the ceramic fiber composite bed, connect by screw it is compressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96223053 CN2281987Y (en) | 1996-09-26 | 1996-09-26 | High sealed heating room for vacuum quenching furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96223053 CN2281987Y (en) | 1996-09-26 | 1996-09-26 | High sealed heating room for vacuum quenching furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2281987Y true CN2281987Y (en) | 1998-05-20 |
Family
ID=33902445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96223053 Expired - Fee Related CN2281987Y (en) | 1996-09-26 | 1996-09-26 | High sealed heating room for vacuum quenching furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2281987Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7779767B2 (en) | 2004-08-04 | 2010-08-24 | Ibiden Co., Ltd. | Firing furnace and porous ceramic member manufacturing method |
| CN102425937A (en) * | 2011-11-04 | 2012-04-25 | 北京天恒成工业技术有限公司 | Technology for preventing quenching deformation of muffle of shaft furnace |
| CN106498144A (en) * | 2016-10-27 | 2017-03-15 | 吉林省维尔特隧道装备有限公司 | The gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring |
-
1996
- 1996-09-26 CN CN 96223053 patent/CN2281987Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7779767B2 (en) | 2004-08-04 | 2010-08-24 | Ibiden Co., Ltd. | Firing furnace and porous ceramic member manufacturing method |
| CN1969163B (en) * | 2004-08-04 | 2010-09-29 | 揖斐电株式会社 | Firing kiln and process for producing porous ceramic member therewith |
| CN102425937A (en) * | 2011-11-04 | 2012-04-25 | 北京天恒成工业技术有限公司 | Technology for preventing quenching deformation of muffle of shaft furnace |
| CN106498144A (en) * | 2016-10-27 | 2017-03-15 | 吉林省维尔特隧道装备有限公司 | The gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |