CN202543262U - Resin film seal-protected aqueous medium vacuum direct water quenching heat treatment apparatus - Google Patents
Resin film seal-protected aqueous medium vacuum direct water quenching heat treatment apparatus Download PDFInfo
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- CN202543262U CN202543262U CN2011205256139U CN201120525613U CN202543262U CN 202543262 U CN202543262 U CN 202543262U CN 2011205256139 U CN2011205256139 U CN 2011205256139U CN 201120525613 U CN201120525613 U CN 201120525613U CN 202543262 U CN202543262 U CN 202543262U
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Abstract
A resin film seal-protected aqueous medium vacuum direct water quenching heat treatment apparatus adopts a vertical vacuum water quenching heat treatment furnace. The furnace body is divided into an upper section and a lower section. The upper section is a vacuum section furnace body. The vacuum section furnace body is divided into two parts, the upper vacuum section part is a heating section furnace body, the lower vacuum section part is a workpiece support section furnace body, the top of the workpiece support section furnace body is connected with the heating section furnace body, and the bottom of the workpiece support section furnace body is connected with a quenching water bath furnace body. The heating section furnace body is connected with a vacuumizer through a vacuum pipeline opening and closing valve and a vacuum pipeline connector. The workpiece support section furnace body is provided with a quenched workpiece-bearing platform support which can be split from the middle. A heat-shielding metal plate which can be rapidly opened is arranged in the lower part of the workpiece support section furnace body. The quenching water bath furnace body is sealed by a resin film. The resin film seal-protected aqueous medium vacuum direct water quenching heat treatment apparatus can prevent a high-temperature workpiece heated under vacuum from being in contact with gas when the workpiece is transferred from a vacuum chamber to a quenching water bath, and thus greatly shortening the time of quenching transfer.
Description
Technical field: the utility model relates to a kind of HTFX, the heat treated equipment of particularly a kind of direct shrend of resin film seal protection water medium vacuum.
Background technology: along with industry-by-industry improving constantly such as aerospace, the energy, automobile, electronics, machineries to the thermal treatment process demand.Develop multiple vacuum heat treatment equipment both at home and abroad, comprised vacuum oil quenching, overlength horizontal vacuum lehre, pallet car type vacuum annealing furnace, vacuum nitriding stove etc.
Vacuum heat treatment has characteristic and advantages such as non-oxidation, no decarburization, no flue dust, the flames of anger, pollution-free, energy-saving and environmental protection, cleaning, safety.The metallic substance responsive when being specially adapted to heat to elemental gas such as oxygen, carbon, nitrogen, hydrogen.Wherein, vacuum hardening is the new technology that obtains special metal material.Can obtain the material of property, for example ultrafine-grained (UFG) microstructure, HS, high-ductility and toughness etc. through vacuum hardening.The vacuum hardening heat treatment technics is mainly used in the vacuum solid solution of titanium alloy, Precise Alloy, PH Stainless Steel and other Rare Metals Materials and handles.Present sophisticated vacuum hardening technology has the vacuum air-quenching as quenchant such as the rare gas element that utilizes argon gas, helium, and with oil as the vacuum oil quenching of quenchant etc.
But present vacuum hardening technology makes the through hardening ability of metallic substance be restricted because the heat-sinking capability of quenchant is limited.Some material require shrends just can reach required performance requriements.In order further to improve the performance of material, people have developed the vacuum water quenching heat treatment technics, utilize the water and the aqueous solution to carry out vacuum hardening as quenchant.
Present vacuum water quenching oven is handled and is mainly contained horizontal pair of chamber and vertical vacuum shrend mode, and they all need two isolated zones, and a zone is the heating zone, is the vacuum zone; Another zone is the normal barometric pressure district for the shrend district.Isolate by sealing door between vacuum zone and the antivacuum district.But present vacuum water quenching oven does not possess the directly quick quenching capacity that gets into water medium of workpiece under vacuum state.Its reason is because in vacuum, the water medium of exposure will volatilize because of barometric point reduces.Therefore; Present vacuum water quenching oven must charge into the rare gas element that equates with shrend district barometric point before quenching; Just can open the sealing door between vacuum zone and the antivacuum district then, shift workpiece and get into water medium, and this process has increased quenching transfer time greatly; Make the quenching temperature of workpiece that reduction to a certain extent arranged, the effect of thermal treatment process is had remarkably influenced.Introduce the duration of contact that pure inert gas has not also increased obnoxious flavoures such as the metallic substance that is in the condition of high temperature and hydrogen, oxygen before quenching in addition.
The utility model content: to the deficiency of above-mentioned prior art, the utility model provides a kind of direct shrend of resin film seal protection water medium vacuum heat treated equipment.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is: the heat treated equipment of a kind of direct shrend of resin film seal protection water medium vacuum, adopt vertical vacuum shrend heat treatment furnace.Body of heater is divided into two zones up and down.Top zone is the vacuum zone body of heater.The vacuum zone body of heater is divided into two portions, and top, vacuum zone is heating zone body of heater (8), is provided with heating unit (25) in the heating zone body of heater (8), and heating unit (25) is connected with temperature control heating power supply (22).The bottom, vacuum zone is a work support district body of heater (3), and work support district body of heater (3) top is connected with heating zone body of heater (8), and the bottom is connected with quench water tank furnace body (2).Heating zone body of heater (8) is connected with vacuum extractor (17) with vacuum pipe coupling device (15) through vacuum pipe opening-closing valve (14).
Discerptible quenching workpiece placement platform support (27) in the middle of work support district body of heater (3) is provided with; Platform is made up of two portions; Every part platform outside is connected for axle with support, and two portions platform connects through the pin locking, and the outer mechanical arm A (21) of stove is connected with pin.Work support district body of heater (3) bottom is provided with the thermoshield tinsel (30) that can open rapidly.The outer mechanical arm B (20) of body of heater is connected with thermoshield tinsel (30).
The quench water medium (19) of packing in the quench water tank furnace body (2).Be provided with the quenching workpiece in the quench water tank furnace body (2) and collect basketry (18), the basketry bottom is provided with the basketry support (29) of band spring.Quench water tank furnace body (2) is through resin film (28) sealing.
The high temperature workpiece that the utility model can be stopped after the heating under vacuum is transferred to the quenching tank process and the contacting of gas from Vakuumkammer, has greatly shortened quenching transfer time.The high temperature workpiece has been exempted the time that exposes in the rare gas element near barometric point simultaneously; Thereby avoided surperficial oxidation; Also avoided obnoxious flavoures such as hydrogen when high temperature, to cause infringement, thereby improved titanium alloy greatly, the shrend thermal treatment process level and the material property of metal such as superalloy, stainless steel and nonferrous materials and alloy material mechanical performance through the inside that crystal boundary is penetrated into metallic substance.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the inner structural representation of the utility model.
Fig. 3 is the split synoptic diagram of the utility model
Embodiment:
Like Fig. 1-shown in Figure 3: the utility model is a vertical vacuum shrend heat treatment furnace.The body of heater xsect is circular.Body of heater is divided into two zones up and down.Top zone is the vacuum zone body of heater.The vacuum zone body of heater is two portions, and top, vacuum zone is heating zone body of heater 8, is provided with alternating current impression heating or resistive heating device 25 that the quenching workpiece is heated in the heating zone body of heater 8, and heating unit 25 is connected with temperature control heating power supply 22.Body of heater bottom, heating zone is provided with wear ring.Bottom, vacuum zone (being the middle part of whole stove) is a work support district body of heater 3, and body of heater 3 tops, work support district are provided with the wear ring of band cushion rubber, and the bottom also is provided with wear ring, can dock each other with heating zone, top body of heater 8 and lower section quench water tank furnace body 2 respectively.Heating zone body of heater 8 is connected with vacuum extractor 17 with vacuum pipe coupling device 15 through vacuum pipe opening-closing valve 14.Be gas clean-up, vacuum extractor 17 is combined by mechanical pump and DP or molecular pump.
Discerptible quenching workpiece placement platform support 27 in the middle of work support district body of heater 3 is provided with; Platform is made up of two portions, and every part platform outside is connected for axle with support, and two portions platform connects through the pin locking; Can open pin rapidly through the outer mechanical arm 21 of stove; When pin separates, falls in the middle of the platform, the quenching workpiece of placing on it 26 falls thereupon.Body of heater bottom, work support district is provided with the thermoshield tinsel 30 that can open rapidly.The outer mechanical arm B20 of body of heater is connected with thermoshield tinsel 30.
Be antivacuum body of heater under the body of heater of vacuum zone, wherein splendid attire quench water medium is called for short quench water tank furnace body 2.Quench water tank furnace body 2 tops are provided with the wear ring of band cushion rubber, can dock each other with the wear ring that body of heater 3 bottoms, work support district are provided with, and realize sealing.Be provided with the quenching workpiece in the tank body of heater 2 and collect basketry 18, the basketry bottom is provided with the basketry support 29 of band spring, so that the quenching workpiece that falls is cushioned.
The ring-type body of heater in vacuum and antivacuum district, promptly work support district body of heater 3 and the 2 salable butt joints of quench water tank furnace body are middle with resin film 28 isolation.Utilization has 28 pairs of tanks of certain thickness resin film to carry out seal protection, isolates with the vacuum system of top body of heater, thereby has prevented the volatilization of the quench water medium 19 in the tank body of heater.The film that resin film 28 can adopt Vilaterm, SE, Vestolen PP 7052, PS and other resins to process.
Tank body of heater 2 is airtight.Owing to resin film has certain intensity, nothing exceeds the stress concentration generation of its ability to bear to vacuum one side is protruding equably to a certain extent in vacuum, and the pressure difference that does not therefore produce owing to water medium side after vacuumizing is destroyed.
The thermometric mode has two kinds respectively, thermocouple temperature measurement and infrared measurement of temperature.When temperature is low (about 1200 ° below the C), the thermocouple of thermocouple temperature measuring equipment 24 contacts with workpiece 26, carries out thermometric; When temperature is higher: adopt infrared temperature measurement apparatus 11 to carry out contactless temperature-measuring, do not contact with workpiece 26.Control furnace temperature for temperature control heating power supply 22 through the electrical signal of temperature measuring equipment feedback.
Temperature control heating power supply 22 is connected with temperature regulating device 24 with heating unit 25.Body of heater 8 upper ends in heating zone are provided with thermometric window 10, and the light that workpiece sends can reach infrared temperature measurement apparatus 11 through the thermometric window.Heating zone body of heater 8 is provided with vacuumometer 23.
Heating zone body of heater 8 goes up and down through the heating zone with work support district body of heater 3 and side shifter 13 goes up and down with the work support district and side shifter 4 is connected with gantry support 9.The lower end of gantry support 9 is provided with lower margin 1, and the upper end is provided with lifting machine 12.The surface of heating zone body of heater 8 is provided with viewing window 7, rare gas element intake air release valve 6 and heating zone body of heater recirculated cooling water interface 5.Work support district body of heater 3 is provided with recirculated cooling water interface 16 with quench water tank furnace body 2.
Three part bodies of heater are the double-layer furnace body structure, feed recirculated cooling water in the middle of the body of heater, in time take away the heat of heat-processed, furnace body temperature is not obviously raise, thereby equipment is protected.In order to prevent that the thermal radiation that workpiece heat-processed produces from making resin film take place softening even the damage resin film; Cause vacuum breaking; Utilize the metal fever shield blade of work support district body of heater that thermal radiation is reflected to the heating zone, make the temperature of resin film be lower than its glass transition temp.
Equipment characteristic
1. the utility model is a vertical vacuum shrend heat treatment furnace, and body of heater is divided into three districts: heating zone body of heater (top), work support district body of heater (middle part) and tank body of heater (bottom);
2. heating zone body of heater, work support district body of heater, tank body of heater are double-layer furnace body, and furnace sandwich feeds recirculated cooling water so that the heat that heat treatment process is produced dispels the heat, protection body of heater and sealing-ring;
3. heating zone body of heater bottom, work support district upper of furnace body and bottom, tank upper of furnace body are equipped with wear ring, and wherein, work support district upper of furnace body and tank upper of furnace body wear ring all are provided with cushion rubber.Three bodies of heater are Butt sealing in twos.In each thermal treatment set-up procedure resin film is set between two wear rings of work support district body of heater and tank body of heater, vacuum zone and antivacuum district are isolated;
4. be provided with and be displaced sideways the gantry support of body of heater, the heating zone body of heater that goes up and down respectively, work support district body of heater are so that install operations such as workpiece, placement thermopair, electrode.Rotate rising and the decline that makes body of heater up-down and side shifter available apparatus realization body of heater through electric screw, and shift out to the side.Gantry support is provided with the hoisting crane that can on gantry stand, move, and is used for placing and taking out workpiece;
5. two kinds of the workpiece type of heating that quenches employing alternating current impression heating or resistive heating.Utilize the ruhmkorff coil of alternating current impression heating to be the fine copper air, coil inside feeds recirculated cooling water.Utilize temperature controlling system constantly to adjust the power supply power input, guarantee that the quenching workpiece temperature meets the parameter that thermal treatment process requires.When utilizing resistive heating, plain conductor is connected with workpiece, and body of heater is wanted reliable ground.Workpiece temperature measure to adopt contact, to improve thermometric precision, simultaneously with infrared measurement of temperature as a reference thermometric monitor;
6. rare gas elementes such as high-purity argon gas or helium can be fed in right amount for several times repeatedly in the vacuum, to reduce the content of oxygen to greatest extent.Before the heating of quenching, also can feed rare gas element in right amount, workpiece is heated in inert gas environment and be incubated;
7. after the workpiece that quenches reached the heating of heat treatment process parameter requirement, insulation program, through opening work support platform and thermoshield tinsel, workpiece was directly fallen on the resin film and its fusing is destroyed, and workpiece directly falls into the quench water medium then.Therefore, it is close with the freely falling body time to drop to the entry time from workpiece, and its process is very fast, is generally less than for 1 second, has guaranteed that workpiece accomplishes the not obvious reduction temperature in heating back, thereby has guaranteed the mechanical property of thermal treatment process effect and material;
8. the thermoshield tinsel that setting can be opened rapidly in the work support district body of heater, opening ways can adopt the aperture formula structure of similar camera aperture principle.Observe operation through viewing window; Work support pin is opened in the middle of mechanical arm and the pin through rotation and is realized being connected and separate that (workpiece will good and soundly be pinned before placing, but heating furnace body rises at this moment, and mechanical arm can not be connected with pinning; After only putting down body of heater, could be through being rotatably connected.）；
9. quench water side medium body of heater is airtight.Sealing resin film on it has certain intensity; Protruding equably to a certain extent to vacuum one side in the body of heater vacuum of vacuum zone; The pressure that certain vacuum tightness of can bearing resin film causes and not destroying, thus the isolation of tank body of heater and vacuum furnace body air guaranteed.Confirm resin film through viewing window before the heating, no steam in the Vakuumkammer.Water level abnormality in the tank body of heater water level sensor is set, in case can stop vaccum-pumping equipment and heating power supply automatically;
10. splash for reducing the quench water medium, can feed the high pressure high purity inert gas during quenching to reduce vacuum tightness.The back quench water medium that quenches will pass back into the utilization of tank cycle repeats.Vacuum pipe before the vacuum pipe valve is designed to outwards be inclined upwardly from body of heater, is beneficial to the backflow of water.Vacuumometer is provided with the switching valve, places water vapour and gets into vacuumometer;
⑾ each valve can be designed to manually or be automatic.Pin opening device and thermoshield tinsel opening device can be designed to manually or be automatic.
The equipment significant parameter
Body of heater external diameter: 300mm～3000mm;
Body of heater height: 500mm～10000mm;
Final vacuum: 1 * 10
-3Pa;
The Heating temperature upper limit: 1700 ° of C;
Quench transfer time: less than 1 second.
The thickness of resin film: 0.1～20mm.
Working process
Rise the heating zone body of heater to eminence, the work support platform is closed, with the pin locking, utilize lifting machine that workpiece to be quenched is placed on the work support, confirm that workpiece does not exceed heating region.If adopt the alternating current impression type of heating, body of heater is installed ruhmkorff coil in the heating zone.If adopt the resistive heating mode to heat installing electrodes on workpiece.Rise the work support body of heater to eminence, the resin film tension is placed on the tank body of heater, fall the work support body of heater, make work support body of heater and the tight closure of tank body of heater.Fall the heating zone body of heater, make heating zone body of heater and the tight closure of work support body of heater, work support pin is opened mechanical arm A be rotated with pin and be connected.Close the thermoshield tinsel with mechanical arm B.The vacuum pipe coupling device is connected.
Close gas valve, vacuumize, whether the inspection resin film is intact.After the heating zone of vacuum zone, the top intravital vacuum tightness of stove reaches requirement, close the vacuum pipe valve.The quenching workpiece is closed heating power supply after being heated and being incubated by quenching technology, and is outside through mechanical arm B opening metal heat shield plate from body of heater, removes the pin of quenching work piece platform simultaneously rapidly through mechanical arm A.The quench hot workpiece will drop on the resin film, and resin film was destroyed by high temperature workpiece heating and melting in moment, and the quenching workpiece will fall into the quench water medium.Thereby realize the shrend thermal treatment of workpiece.Open gas valve after the quenching, make the interior vacuum tightness of stove consistent, rise and sidesway heating zone body of heater and work support body of heater with barometric point.Utilize lifting machine that workpiece is taken out.
The quench water medium that splashes after the quenching is back in the tank at last, can recycle.
Claims (4)
1. the heat treated equipment of the direct shrend of resin film seal protection water medium vacuum adopts vertical vacuum shrend heat treatment furnace, and its characteristic is being used for: body of heater is divided into two zones up and down; Top zone is the vacuum zone body of heater, and the vacuum zone body of heater is divided into two portions, and top, vacuum zone is the heating zone body of heater; Be provided with heating unit in the body of heater of heating zone; Heating unit is connected with the temperature control heating power supply, and the bottom, vacuum zone is a work support district body of heater, and work support district upper of furnace body is connected with the heating zone body of heater; The bottom is connected with quench water tank furnace body, and the heating zone body of heater is connected with vacuum extractor with the vacuum pipe coupling device through the vacuum pipe opening-closing valve; Discerptible quenching workpiece placement platform support in the middle of work support district body of heater is provided with; Platform is made up of two portions; Every part platform outside is connected for axle with support, and two portions platform connects through the pin locking, and the outer mechanical arm A of stove is connected with pin; Body of heater bottom, work support district is provided with the thermoshield tinsel that can open rapidly, and the outer mechanical arm B of body of heater is connected with the thermoshield tinsel; Be provided with the quenching workpiece in the quench water tank furnace body and collect basketry, the basketry bottom is provided with the basketry support of band spring, and quench water tank furnace body is through the resin film sealing.
2. the heat treated equipment of a kind of direct shrend of resin film seal protection water medium vacuum as claimed in claim 1 is characterized in that: described heating unit is alternating current impression heating or resistive heating device.
3. the heat treated equipment of a kind of direct shrend of resin film seal protection water medium vacuum as claimed in claim 1 is characterized in that: vacuum extractor is combined by mechanical pump and DP or molecular pump.
4. the heat treated equipment of a kind of direct shrend of resin film seal protection water medium vacuum as claimed in claim 1, it is characterized in that: heating power supply is connected with temperature regulating device with heating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205256139U CN202543262U (en) | 2011-12-15 | 2011-12-15 | Resin film seal-protected aqueous medium vacuum direct water quenching heat treatment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205256139U CN202543262U (en) | 2011-12-15 | 2011-12-15 | Resin film seal-protected aqueous medium vacuum direct water quenching heat treatment apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202543262U true CN202543262U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205256139U Withdrawn - After Issue CN202543262U (en) | 2011-12-15 | 2011-12-15 | Resin film seal-protected aqueous medium vacuum direct water quenching heat treatment apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202543262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492812A (en) * | 2011-12-15 | 2012-06-13 | 沈阳航空航天大学 | Vacuum direct-water-quenching heat treatment equipment with water medium protected by resin film hermetically |
-
2011
- 2011-12-15 CN CN2011205256139U patent/CN202543262U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492812A (en) * | 2011-12-15 | 2012-06-13 | 沈阳航空航天大学 | Vacuum direct-water-quenching heat treatment equipment with water medium protected by resin film hermetically |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121121 Effective date of abandoning: 20140101 |
|
| RGAV | Abandon patent right to avoid regrant |