CN1831159A - Thermal treatment furnace - Google Patents
Thermal treatment furnace Download PDFInfo
- Publication number
- CN1831159A CN1831159A CNA2006100547644A CN200610054764A CN1831159A CN 1831159 A CN1831159 A CN 1831159A CN A2006100547644 A CNA2006100547644 A CN A2006100547644A CN 200610054764 A CN200610054764 A CN 200610054764A CN 1831159 A CN1831159 A CN 1831159A
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- CN
- China
- Prior art keywords
- heat treatment
- object thing
- treatment object
- fan
- mentioned
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/16—Arrangements of air or gas supply devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/04—Circulating atmospheres by mechanical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/04—Circulating atmospheres by mechanical means
- F27D2007/045—Fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/007—Cooling of charges therein
- F27D2009/0072—Cooling of charges therein the cooling medium being a gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/007—Cooling of charges therein
- F27D2009/0072—Cooling of charges therein the cooling medium being a gas
- F27D2009/0075—Cooling of charges therein the cooling medium being a gas in direct contact with the charge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The present invention provides a thermal treatment furnace suitable for quenching a large subject to be thermally treated, which is provided with a thermal engine 6, and a fan 5 is driven by the thermal engine 6 to stir high pressure cooling gas for a period during which the subject to be thermally treated W is cooled.
Description
Technical field
The present invention relates to be used for the heat treatment object thing is carried out the heat treatment furnace of quench treatment etc.
Background technology
As the device that is used for the heat treatment object thing of for example metal pattern etc. is carried out quench treatment, known have a vacuum heat treatment furnace (with reference to following patent documentation).In this vacuum heat treatment furnace, normally in stove, under the evacuated state, the heat treatment object thing is carried out the heating of specified time, then this heat treatment object thing is put in the oil groove, perhaps stir with fan, carry out cooling process while filling cryogenic cooling gas.
The cooling of being undertaken by gas has following big advantage, that is, can slow down speed of cooling, avoid the thermal distortion of heat treatment object thing etc., and the heat treatment object thing can not occur by the phenomenon of oil pollution.
Patent documentation 1: the spy opens flat 10-183236 communique
At present, can the needs that bigger object is heat-treated be improved day by day.The needs produced according to Industrial products perhaps as a ring that reduces production costs, have been attempted not being divided into a plurality of parts as the member (for example, the car door of automobile etc.) of the textural element of product and the technology made together, therefore, need large-scale metal pattern.Thus, for such metal pattern being heat-treated the trend that heat treatment furnace also has requirement to maximize.
But,, require to be filled into the high-pressure trend of the cooling gas in the inner room for large-scale heat treatment object thing is carried out chilling.And also run into the problem that how to drive the fan that is used to stir high pressure gas, affiliated high pressure gas are filled in the bigger inner room.Originally, be used to stir the fan of cooling gas specially with motor drive, but, must adopt the high power motor of output rating well beyond existing electric motor as when stirring high pressure gas above-mentionedly.And, in order to obtain big output rating, should also to (particularly when starting, fan need huge mechanical energy output to the voltage that electric motor applies for high pressure, simultaneously, the high-pressure trend that applies voltage is indispensable), not only buying itself is difficult but voltage rating surpasses the electric motor of 400V, but also large-scale power receiving equipment and controller switching equipment must be set inside and outside factory.
In addition, in the quench treatment of heat treatment object, refrigerating work procedure is nothing but the part in the whole operation.Usually, in the heating process of stove and object, need 1-2 hour, in the soaking operation of object, need about a few hours, then in the refrigerating work procedure of object, need 1-2 hour.That is, during by the motor drive fan, only need about 1-2 hour, not as good as stop electric motor and fan during time long.From the position of the Utilities Electric Co. etc. of generating, power supply, for the electric motor that only turned round about a few hours in a day, and need long-time continue to keep power generation capacity, ability to transmit electricity, so that electric motor at any time can both turn round.In other words, must in infrastructure construction, drop into bigger expense, send electric energy power accordingly with the peak value of electric power needs so that guarantee.This expense will be reflected in the electricity charge naturally.In the electricity charge of reality, with the basis of the corresponding expense according to quantity of consumes power on, also to add and the corresponding basic charge of electric power of equipment.Although powerful electric motor improved electric power of equipment value, caused basic charge bigger, the out-of-operation time of electric motor is still longer in one day.The user of heat treatment furnace has born irrational expense, and this is a present situation.
And, not as stable in Japan foreign country, under the situation that makes heat treatment furnace work, be very to take a risk in power condition.When entering refrigerating work procedure, if send electricity unstable, then the heat treatment object thing in the stove will be scrapped, and fatal loss takes place.
Summary of the invention
The present invention is conceived to the problems referred to above first, has proposed new design,, sets up heat engine at the heat treatment furnace that is used for the heat treatment object thing is carried out quench treatment etc. that is, the heat treatment object thing is being carried out cooling period, by this heat engine drive fan.
By such equipment, can from the necessity that large-scale power receiving equipment and controller switching equipment are set, obtain liberation inside and outside factory.And, can cut down irrational social cost of building the Infrastructure of lacking between period of use.In addition, for fear of the construction in new power station, making great efforts to make electric power need equalization at present, the present invention just can help the equalization of electric power needs.In addition, and to sending electricity at electricity such as fuel-burning power plant, being subjected to electricity (power transformation), the situation of drivingmotor and fan is compared then, can save the power loss of sending in the power path, the power loss that is subjected to electricity, the electro-mechanical power loss in can conversion.The heat engine of drive fan is rotation only temporarily in refrigerating work procedure, and it is fully possible suitably suppressing or remove objectionable impurities that this heat engine discharged etc. with rational cost burden.Place everywhere the heat engine of (position of heat treatment furnace running), compare, can easily prevent public hazards by factory management, inspection and restriction with huge fuel-burning power plant etc.
Heat treatment furnace of the present invention is even owing to also can work not as stable in Japan foreign country in power condition, be more satisfactory device therefore.
As secondary effect, can be useful in the rotating speed of the known rotating speed controlling organization control fan that uses in automobile, the boats and ships etc., and can control the speed of cooling of heat treatment object thing flexibly.This point is effective especially in to quench treatment of the material of the speed that is necessary to regulate speed of cooling etc.That is, can when guaranteeing desirable chilling effect (hardness etc.), suppress the generation of thermal distortion.
According to the present invention, can from the necessity that large-scale power receiving equipment and controller switching equipment are set, obtain liberation inside and outside factory.And, can reduce irrational social cost of building the Infrastructure of lacking between period of use.In addition, also be suitable for using not as stable in Japan foreign country in power condition.
Description of drawings
Fig. 1 is the summary side cutaway view of the heat treatment furnace of expression an embodiment of the invention.
Fig. 2 is the summary elevation cross-sectional view of the heat treatment furnace of this embodiment of expression.
Fig. 3 is the summary side cutaway view of an expression variation of the present invention.
Embodiment
Below, describe with regard to embodiments of the present invention with reference to accompanying drawing.The heat treatment furnace of present embodiment behind the heat hot process object thing W, drops into this heat treatment object thing W in the oil groove 26 under vacuum state, stirs, carries out chilling processing with fluid by fan 5 while perhaps fill cooling.This heat treatment furnace as shown in Figures 1 and 2, be heating chamber 1 with heat hot process object thing W and the two chamber-type heat treatment furnace that the heat treatment object thing W in heating chamber 1 heating is carried out refrigerative cooling room 2, have adiabatic body 12 and well heater 14, vacuum evacuating system 3 etc. in heating chamber 1 side, have oil groove 26, fluid import system 4 and fan 5 etc. in cooling room 2 sides.
More particularly, in body of heater 11, dispose the roughly adiabatic body 12 of casing shape, the well heater 14 of portion's configuration within it, constitute the heat treatment space that heat treatment object thing W is heated as the shell of heating chamber 1.Cooling room 2 sides at adiabatic body 12 are provided with the heat-insulating cover 13 that can carry out on-off action.Adiabatic body 12 and heat-insulating cover 13 are for example made by materials such as graphite felt.Vacuum evacuating system 3 for example is the device that diffusion pump (not shown), mechanical booster pump (not shown), oily rotary vacuum pump (not shown) are connected in series and form, and it can carry out switch via valve and be connected with body of heater 11 with switching.Well heater 14 for heat treatment object thing W being heated to temperature required for example graphite heater etc., is arranged on the position of the installation heat treatment object thing W in the heat treatment space.
Body of heater 11 is communicated with housing 21 as the shell of cooling room 2.The border of body of heater 11 and housing 21 isolates by the isolating door 27 that moves integratedly with heat-insulating cover 13.Housing 21 direction expansion up and down, the zone is provided with and is used for filling cooling and makes its round-robin fan 5, be used to cool off the fluidic heat exchanger 22 at housing 21 internal recycle with the fluid import system 4 of fluid (for example N2 etc. rare gas element), the fluid that stirring is filled at an upper portion thereof, constitutes the gas quenching space with this.Fluid import system 4 is used for rare gas element is sent in the housing 21 from bomb (not shown), and described rare gas element is used for the be through with object W of heat treated of chilling.Fluid import system 4 be provided with valve midway, this is self-evident.Fan 5 is arranged on the upper end of housing 21, makes its drive shaft 51 connect housing 21 and gives prominence to upward.The position that the drive shaft 51 of fan 5 connects housing 21 is provided with vacuum-sealing pad 23.In addition, as the device of the drive shaft 51 that is used for cooling fan 5, the stream (for example water-cooled mouth in the axle is not shown) that makes the refrigeration agent circulation can be set in drive shaft 51.In addition, on the position of the regulation of housing 21, taking-up is set, puts into the gangway 24 of heat treatment object thing W.This gangway 24 is undertaken airtight by the door 25 that opens and closes.In addition, the lower region of housing 21 as the oil quenching space, be provided for storing the oil groove 26 of tempering oil, but this oil groove 26 is not to be necessary.
In addition, in the present embodiment, subsidiary output is used for the heat engine 6 of the motivating force of drive fan 5, simultaneously, has clamped transmission rig 7 between the drive shaft 51 of the output shaft 61 of heat engine 6 and fan 5, has linked both.
Heat engine 6 is devices (particularly oil engine) that combustion fuel, output mechanical energy and rotation drive output shaft 61, but its concrete form is not limited thereto.Can Select and Apply various heat engines 6 such as diesel engine, petrol motor, internal combustion turbine according to design and other situations.Preferably, adopt to be suitable for employed known rotating speed controlling organization (not shown) in automobile, the boats and ships etc. and can control the mechanism of the rotating speed of output shaft 61.This heat engine 6 is supported in body of heater 11 and shell 21 and separates on the pallet of constructing 62.
Transmission rig 7 transmits the rotary driving force of heat engine 6 outputs to the drive shaft 51 of fan 5.In the present embodiment, be that key element constitutes transmission rig 7 with clutch coupling and conical gear.In illustrated example, mounting is taken in the clutch housing 71 of clutch coupling on pallet 62, and mounting is taken in the wheel casing 72 of conical gear on housing 21.But the structure of transmission rig 7 is not limited to said apparatus.Clutch coupling, conical gear are not all to be essential.But, also can consider to adopt conical gear gear in addition.In addition, also can use the flexible transmission of belt, chain etc.
In addition, heat engine 6 being bearing on the pallet 62, and clamping transmission rig 7 between heat engine 6 and fan 5, is that it vibrated to transmission such as housing 21, bodies of heater 11 when heat engine 6 turned round in order to be suppressed at.
The process that vacuum heat treatment furnace by present embodiment is carried out quench treatment describes below, by transfer mechanism (not shown) will be from the gangway the 24 heat treatment object thing W that put into send into the heat treatment space of heating chamber 1, close then adiabatic body 12 heat-insulating cover 13 and isolating door 27, heat treatment object thing W is heated.After heating finishes, open heat-insulating cover 13 and isolating door 27, by transfer mechanism heat treatment object thing W is transported to gas quenching space in the housing 21.Then, starting heat engine 6, make fan 5 rotation.After the speed of rotation of fan 5 reaches the rotating speed of regulation, by fluid import system 4 make cooling with fluid, be rare gas element inflow heat treatment furnace inner room (in other words, be exactly in the cooling room 2) in, it is stirred one side on one side by fan 5 heat treatment object thing W is carried out chilling.After cooling finishes, the internal drop of heat treatment furnace to normal atmosphere, and is delivered to heat treatment object thing W near the gangway 24 by transfer mechanism.In addition, to the heat treatment object thing W after the heating when cooling off, can carry out this heat treatment object thing W is put into oil quenching in the oil groove 26.
According to present embodiment, heat treatment furnace has as lower member: the heating chamber 1 that heat treatment object thing W is heated; The cooling room 2 that the heat treatment object thing W that will heat in above-mentioned heating chamber 1 sends into; Stirring is filled into the fluid in the above-mentioned cooling room 2, cools off the fan 5 of above-mentioned heat treatment object thing W; With during the above-mentioned heat treatment object thing of the fan cooling W, output drives the heat engine 6 of the motivating force of said fans 5 in above-mentioned cooling room 2; The transmission rig 7 that the motivating force of above-mentioned heat engine 6 outputs is transmitted to the drive shaft 51 of said fans 5 is because therefore this heat treatment furnace such as above-mentioned constitute can obtain liberation from the necessity that large-scale power receiving equipment and controller switching equipment are set inside and outside factory.And, can reduce irrational social cost of building the Infrastructure of lacking between period of use.In addition, can also be applicable to that being not so good as stable foreign country in Japan in the electric power situation carries out work.
The present invention is not limited to the embodiment of above detailed description.For example, as shown in Figure 3, also can constitute the heat treatment furnace of heating chamber 1 and cooling room 2 unseparated Room types.In the heat treatment furnace of this illustrated example, the drive shaft 51 of fan 5 and the output shaft 61 of heat engine 6 are all towards general horizontal direction, and their mutual almost parallels.Therefore, as the key element of the transmission rig 7 of the output shaft 61 of drive shaft 51 that links fan 5 and heat engine 6, can use spurn wheel, twisted spur gear or V-gear etc.And, as this illustrated example, under the situation of the drive shaft 51 of fan 5 and the output shaft 61 mutual almost parallels of heat engine 6, can directly not link both via transmission rig 7 ground.
The concrete structure of other each several parts is not limited to above-mentioned embodiment, in the scope that does not break away from purport of the present invention, can carry out various distortion.
Claims (2)
1. a heat treatment furnace heats the heat treatment object thing, and filling is cooled off with fluid, the heat treatment object thing is cooled off then, it is characterized in that having:
Inner room is moved into above-mentioned heat treatment object thing in this inner room, and fills above-mentioned fluid;
Fan stirs the fluid that is filled in the above-mentioned inner room, and cools off above-mentioned heat treatment object thing;
Heat engine, during with the above-mentioned heat treatment object thing of fan cooling, output is used to drive the motivating force of said fans.
2. a heat treatment furnace heats the heat treatment object thing, and filling is cooled off with fluid, the heat treatment object thing is cooled off then, it is characterized in that having:
Inner room is moved into above-mentioned heat treatment object thing in this inner room, and fills above-mentioned fluid;
Fan stirs the fluid that is filled in the above-mentioned inner room, and cools off above-mentioned heat treatment object thing;
Heat engine, during with the above-mentioned heat treatment object thing of fan cooling, output is used to drive the motivating force of said fans;
Transmission rig transmits the motivating force that above-mentioned heat engine is exported to the drive shaft of said fans.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005068136 | 2005-03-10 | ||
| JP2005068136 | 2005-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1831159A true CN1831159A (en) | 2006-09-13 |
Family
ID=36588914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100547644A Pending CN1831159A (en) | 2005-03-10 | 2006-03-10 | Thermal treatment furnace |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1701121A3 (en) |
| CN (1) | CN1831159A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209872799U (en) * | 2018-12-14 | 2019-12-31 | 安泰天龙钨钼科技有限公司 | Device of low energy consumption hot pressing production boron nitride base pottery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1274974A (en) * | 1970-04-01 | 1972-05-17 | Wild Barfield Ltd | Improvements in heat treatment furnaces |
| JPH10183236A (en) | 1996-12-25 | 1998-07-14 | Shimazu Mekutemu Kk | Vacuum heat treatment furnace |
-
2006
- 2006-03-09 EP EP06110907A patent/EP1701121A3/en not_active Withdrawn
- 2006-03-10 CN CNA2006100547644A patent/CN1831159A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP1701121A2 (en) | 2006-09-13 |
| EP1701121A3 (en) | 2007-07-25 |
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