CN102925644A - Vacuum heat treatment and subzero treatment integrated machine - Google Patents
Vacuum heat treatment and subzero treatment integrated machine Download PDFInfo
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- CN102925644A CN102925644A CN2012104364050A CN201210436405A CN102925644A CN 102925644 A CN102925644 A CN 102925644A CN 2012104364050 A CN2012104364050 A CN 2012104364050A CN 201210436405 A CN201210436405 A CN 201210436405A CN 102925644 A CN102925644 A CN 102925644A
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Abstract
The invention relates to a vacuum heat treatment and subzero treatment integrated machine and belongs to the field of metal heat treatment devices. The vacuum heat treatment and subzero treatment integrated machine is characterized in that four door openings are arranged on the left lateral face and the right lateral face of a middle corridor chamber in a two-to-two symmetrical mode and provided with unsealing and sealing doors which are respectively connected with a material loading and unloading chamber, a vacuum high-pressure gas quenching heating chamber, a vacuum high-pressure gas quenching cooling chamber and a subzero chamber. One unsealing and sealing door is arranged at the outer end of the material loading and unloading chamber, and a rail for enabling a material conveying cart to move is arranged in the middle corridor chamber. A first solenoid valve and a second solenoid valve are arranged on the outer wall of the material loading and unloading chamber, a third solenoid valve and a fourth solenoid valve are arranged on the outer wall of the vacuum high-pressure gas quenching cooling chamber, and a fifth solenoid valve and a sixth solenoid valve are arranged on the outer wall of the subzero chamber. A gas storage tank is connected with a liquid nitrogen valve through a second stop valve, connected with the vacuum high-pressure gas quenching cooling chamber through a first stop valve and the third solenoid valve, and connected with the subzero chamber through a check valve, an air compressor, a sucking pump and the sixth solenoid valve. The vacuum heat treatment and subzero treatment integrated machine has the advantages of saving device investment, reducing material consumption and improving the production rate and product quality.
Description
Technical field
The invention belongs to metallic substance equipment for Heating Processing field, be specifically related to a kind ofly can either do the integration apparatus that vacuum heat treatment can be done again sub-zero treatment.
Background technology
Vacuum high pressure gas quenching is a kind of Technology to the metal parts material surface hardened, and it hardens evenly, is out of shape littlely, does not destroy the smooth finish of piece surface, has reduced the surface working operation after quenching, thereby has improved production efficiency, has reduced production cost.Have at present the patent of more relevant vacuum high pressure gas quenching equipment.Cryogenics is that the metallic substance process of cooling after quenching is continued, and reaches the temperature far below room temperature, impel conventional thermal treatment after existing residual austenite be further converted to martensite, improve and the thinning microstructure structure.It is very fast that present domestic deep cold treatment apparatus R﹠D work makes progress, especially adopting up-to-date heating technique and liquid nitrogen homogenization technology, low-temperature receiver is evenly distributed, reduces temperature fluctuation, improve the technical feature aspects such as intellectuality, high precision, automatization control and obtained obvious raising.But at present we seen to workpiece carry out vacuum heat treatment and sub-zero treatment process be workpiece is quenched in high-pressure gas quenching furnace after, generally be cooled to room temperature, then workpiece is taken out from vacuum oven, again workpiece is delivered to deep cooling box and is carried out sub-zero treatment.Will be through after a while in the middle of this, affect the Disposal quality of workpiece, a lot of materials are middle from the vacuum heat treatment to the sub-zero treatment to be not allow the long time transition, and this processing mode needs manual operation more, mishandle appears easily, and vacuum heat treatment needs nitrogen, and sub-zero treatment needs liquid nitrogen, and two kinds of equipment claimed differences provide the equipment for the treatment of media, increase cost, the waste liquid nitrogen, productivity is low, and the quality of processing workpiece is unstable.
Summary of the invention
The object of the invention provides a kind of vacuum heat treatment and sub-zero treatment all-in-one, to continuity and the unified treatment media source problem that provides of sub-zero treatment,, enhances productivity the saving processing cost to guarantee to process the quality of workpiece after the solution workpiece vacuum heat treatment.
The present invention realizes like this, as shown in Figure 1, its constitutional features is to be arranged with in twos four door openings on the left and right sides of chamber, columnar central gangway III, and each door opening is equipped with second, third successively, the 4th, the 5th unpacking hermatic door 5,23,22,7 also is connected with material handling chamber I, vacuum high pressure gas quenching heating chamber II, vacuum high pressure gas quenching cooling room IV, chilling chamber V respectively successively.In the outer end of material handling chamber I the first unpacking hermatic door 1 is installed, the bottom surface along axis direction in the III of chamber, central gangway is equipped with the track 6 of walking for material conveying trolley 29.In material handling chamber I, vacuum high pressure gas quenching heating chamber II, vacuum high pressure gas quenching cooling room IV, chilling chamber V, be separately installed with first, second, third, fourth material platform 2,24,19,8.At material handling chamber I outer wall first, second magnetic valve 3,4 is installed, at vacuum high pressure gas quenching cooling room IV outer wall the 3rd, the 4th magnetic valve 20,21 is installed, at chilling chamber V outer wall the 5th, the 6th magnetic valve 17,18 is installed.The connection of liquid air pipe is that gas-holder 10 links to each other with liquid nitrogen container 12 by the second stopping valve 11, gas-holder 10 links to each other with vacuum high pressure gas quenching cooling room IV by the first stopping valve 9, the 3rd magnetic valve 20 in proper order, gas-holder 10 links to each other with the chilling chamber V by check valve 14, air compressor 15, off-gas pump 16, the 6th magnetic valve 18 in proper order, liquid nitrogen container 12 links to each other with the chilling chamber V by the 3rd stopping valve 13, the 5th magnetic valve 17 in proper order, the first magnetic valve 3 links to each other with external vacuum pump, and the 4th magnetic valve 21 is used for exhaust.
Advantage of the present invention and positively effect are: 1. whole equipment adopts computer control system to control, and can enhance productivity.2. during vacuum high pressure gas quenching, heating and cooling are separately carried out, can be saved a large amount of electric energy and nitrogen.3. be furnished with nitrogen gas recovering apparatus at chilling chamber, can reclaim nitrogen.4. the vacuum heat treatment of metal works and sub-zero treatment are combined on the equipment and carry out, both saved equipment investment, saved materials consumption, improved again productivity, improved the quality of processing workpiece.
Description of drawings
The present invention is further described below in conjunction with drawings and embodiments
Fig. 1 is the vertical view of structure of the present invention
A is to view among Fig. 2 Fig. 1
B is to view among Fig. 3 Fig. 1
1-the first unpacking hermatic door among the figure, 2-the first material platform, 3-the first magnetic valve, 4-the second magnetic valve, 5-the second unpacking hermatic door, 6-track, 7-the 5th unpacking hermatic door, 8-the 4th material platform, 9-the first stopping valve, 10-gas-holder, 11-the second stopping valve, 12-liquid nitrogen container, 13-the 3rd stopping valve, the 14-check valve, 15-air compressor, 16-off-gas pump, 17-the 5th magnetic valve, 18-the 6th magnetic valve, 19-the 3rd material platform, 20-the 3rd magnetic valve, 21-the 4th magnetic valve, 22-the 4th unpacking hermatic door, 23-the 3rd unpacking hermatic door, 24-the second material platform, 25-thermofin, 26,26'-blower fan, 27, the 27'-motor, 28-tensimeter, 29-material conveying trolley.I-material handling chamber, II-vacuum high pressure gas quenching heating chamber, III-chamber, central gangway, IV-vacuum high pressure gas quenching cooling room, V-chilling chamber.
Embodiment
As shown in Figure 1, when starting working, open the first stopping valve 9, the second stopping valve 11, the 3rd stopping valve 13, observe the tensimeter 28 on the gas-holder 10, when the pressure of tensimeter demonstration reaches need of work, close the second stopping valve 11.Then open the first unpacking hermatic door 1 by computer control, to need material to be processed to deliver on the first material platform 2 in the I of material handling chamber with truck, withdraw from truck, close subsequently the first unpacking hermatic door 1, open the second unpacking hermatic door 5, the 3rd unpacking hermatic door 23, the 4th unpacking hermatic door 22, the 5th unpacking hermatic door 7, open the first magnetic valve 3, vacuum heat treatment and sub-zero treatment all-in-one integral body are vacuumized.When vacuum tightness reaches the desired vacuum tightness of technique, autoshutdown the first magnetic valve 3.Start material conveying trolley 29, material is taken out from the first material platform 2, close subsequently the second unpacking hermatic door 5.Material conveying trolley 29 is sent into material on the second material platform 24 in the vacuum high pressure gas quenching heating chamber II along track 6, closes subsequently the 3rd unpacking hermatic door 23.Workpiece is carried out electrically heated, after reaching the processing requirement temperature, insulation for some time, open the 3rd unpacking hermatic door 23, take out material with material conveying trolley 29, close subsequently the 3rd unpacking hermatic door 23, material conveying trolley 29 is sent into material on the 3rd material platform 19 in the vacuum high pressure gas quenching cooling room IV, close subsequently the 4th unpacking hermatic door 22, open the 3rd magnetic valve 20 and from gas-holder 10, pass into nitrogen, quench, the 4th magnetic valve 21 opens and closes in order to scavenge simultaneously, and the 3rd magnetic valve 20 cut out after quenching was finished.Open the 4th unpacking hermatic door 22, take out material with material conveying trolley 29, close subsequently the 4th unpacking hermatic door 22, material conveying trolley 29 is sent into material on the 4th material platform 8 in the chilling chamber V, close subsequently the 5th unpacking hermatic door 7, open the 5th magnetic valve 17 and from liquid nitrogen container 12, pass into liquid nitrogen and carry out sub-zero treatment.Control the unlatching of the 5th magnetic valve 17 according to processing requirement, meet the demands to guarantee the temperature in the chilling chamber V.Liquid nitrogen is direct gasification after the jet pipe ejection, utilizes gasification latent heat and low temperature nitrogen to absorb heat temperature of charge is reduced, and motor 27 drives blower fans 26 rotations and makes air flowing in the deep cooling box, impels the interior temperature of chilling chamber V even.Spent air temperture in the chilling chamber V is elevated to certain value, the 5th magnetic valve 17 cuts out, the 6th magnetic valve 18 is opened, and start off-gas pump 16 and nitrogen in the chilling chamber V is extracted out sent into air compressor 15 and be compressed into high pressure gas, being recovered in the gas-holder 10 by check valve 14 again, the 5th magnetic valve 17 is opened afterwards, the 6th magnetic valve 18 cuts out, off-gas pump 16, air compressor 15 quit work, and move in circles, until technique is finished.After sub-zero treatment is finished, autoshutdown the 5th magnetic valve 17, open the 5th unpacking hermatic door 7, material conveying trolley 29 takes out material, close subsequently the 5th unpacking hermatic door 7, open the second unpacking hermatic door 5, material conveying trolley 29 is sent into material on the first material platform 2 in the I of material handling chamber, close subsequently the second unpacking hermatic door 5, open the second magnetic valve 4 and allow air enter.When treating pressure in the I of material handling chamber and atmospheric equilibrium, autoshutdown the second magnetic valve 4.Open the first unpacking hermatic door 1, take out the material of handling well with truck, close subsequently the first unpacking hermatic door 1, if carrying out the second batch material processes, can be when first material be sent into the chilling chamber V and is carried out sub-zero treatment, open the first unpacking hermatic door 1 by computer control, to need second batch material to be processed to deliver on the first material platform 2 in the I of material handling chamber with truck, withdraw from truck, close subsequently the first unpacking hermatic door 1, open the second unpacking hermatic door 5, the 4th unpacking hermatic door 22, open the first magnetic valve 3 and vacuumize.When vacuum tightness reaches the desired vacuum tightness of technique, autoshutdown the first magnetic valve 3.Start material conveying trolley 29, material is taken out from the first material platform 2, close subsequently the second unpacking hermatic door 5.Material conveying trolley 29 is sent into the second batch material in the vacuum high pressure gas quenching heating chamber II along track 6 and is heated.The second batch material need to be sent the second batch material into vacuum high pressure gas quenching cooling room IV with material conveying trolley 29 and quench behind heat tracing in the vacuum high-pressure heating chamber II.After the second batch material quenches in vacuum high pressure gas quenching cooling room IV and finishes, before in sending into the chilling chamber V, carrying out sub-zero treatment, need first first material of chilling chamber V to be sent into material handling chamber I, then the second batch material could be sent into the chilling chamber V and carry out sub-zero treatment.So loop, until all materials are finished dealing with.Process if do not carry out the material of next batch, need to close the first stopping valve 9, the 3rd stopping valve 13.
Claims (1)
1. a vacuum heat treatment and sub-zero treatment all-in-one, its constitutional features is to be arranged with in twos four door openings on the left and right sides of chamber, columnar central gangway (III), each door opening is equipped with second successively, the 3rd, the 4th, the 5th unpacking hermatic door (5,23,22,7) and respectively successively with material handling chamber (I), vacuum high pressure gas quenching heating chamber (II), vacuum high pressure gas quenching cooling room (IV), chilling chamber (V) is connected, the first unpacking hermatic door (1) is installed in the outer end of material handling chamber (I), bottom surface along axis direction in chamber, central gangway (III) is equipped with the track (6) of walking for material conveying trolley (29), in material handling chamber (I), vacuum high pressure gas quenching heating chamber (II), vacuum high pressure gas quenching cooling room (IV), be separately installed with first in the chilling chamber (V), second, the 3rd, the 4th material platform (2,24,19,8), outer wall is equipped with first in material handling chamber (I), the second magnetic valve (3,4), be equipped with the 3rd at vacuum high pressure gas quenching cooling room (IV) outer wall, the 4th magnetic valve (20,21), be equipped with the 5th at chilling chamber (V) outer wall, the 6th magnetic valve (17,18), the connection of liquid air pipe is that gas-holder (10) links to each other with liquid nitrogen container (12) by the second stopping valve (11), gas-holder (10) is in proper order by the first stopping valve (9), the 3rd magnetic valve (20) links to each other with vacuum high pressure gas quenching cooling room (IV), gas-holder (10) is in proper order by check valve (14), air compressor (15), off-gas pump (16), the 6th magnetic valve (18) links to each other with chilling chamber (V), liquid nitrogen container (12) is in proper order by the 3rd stopping valve (13), the 5th magnetic valve (17) links to each other with chilling chamber (V), the first magnetic valve (3) links to each other with external vacuum pump, and the 4th magnetic valve (21) is used for exhaust.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210436405.0A CN102925644B (en) | 2012-11-06 | 2012-11-06 | Vacuum heat treatment and subzero treatment integrated machine |
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| CN201210436405.0A CN102925644B (en) | 2012-11-06 | 2012-11-06 | Vacuum heat treatment and subzero treatment integrated machine |
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| CN102925644B CN102925644B (en) | 2014-02-12 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433616A (en) * | 2013-07-25 | 2013-12-11 | 中国科学院理化技术研究所 | Friction stir welding device |
| CN104975155A (en) * | 2015-07-02 | 2015-10-14 | 如皋市非标轴承有限公司 | High pressure gas quenching, subzero treatment, ion nitriding processing vacuum nitrogen circulation all-in-one machine |
| CN106834618A (en) * | 2016-12-06 | 2017-06-13 | 太原科技大学 | A kind of cryogenic treating process for improving coal mining cutting pick mechanical property |
| CN107904386A (en) * | 2017-11-13 | 2018-04-13 | 遵义中铂硬质合金有限责任公司 | A kind of tool heat treatment method |
| CN107974547A (en) * | 2017-11-13 | 2018-05-01 | 遵义中铂硬质合金有限责任公司 | A kind of cutter annealing device |
| CN108603240A (en) * | 2016-12-29 | 2018-09-28 | 郑元基 | Vacuum heat treatment device |
| CN113621901A (en) * | 2021-08-09 | 2021-11-09 | 中国航空制造技术研究院 | Cryogenic heat treatment device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830479A (en) * | 1972-08-23 | 1974-08-20 | M Knowles | Heat treatment furnace |
| CN202220190U (en) * | 2011-08-05 | 2012-05-16 | 上海汇森益发工业炉有限公司 | Continuous type cryogenic treatment and tempering equipment |
-
2012
- 2012-11-06 CN CN201210436405.0A patent/CN102925644B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830479A (en) * | 1972-08-23 | 1974-08-20 | M Knowles | Heat treatment furnace |
| CN202220190U (en) * | 2011-08-05 | 2012-05-16 | 上海汇森益发工业炉有限公司 | Continuous type cryogenic treatment and tempering equipment |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433616A (en) * | 2013-07-25 | 2013-12-11 | 中国科学院理化技术研究所 | Friction stir welding device |
| CN104975155A (en) * | 2015-07-02 | 2015-10-14 | 如皋市非标轴承有限公司 | High pressure gas quenching, subzero treatment, ion nitriding processing vacuum nitrogen circulation all-in-one machine |
| CN106834618A (en) * | 2016-12-06 | 2017-06-13 | 太原科技大学 | A kind of cryogenic treating process for improving coal mining cutting pick mechanical property |
| CN108603240A (en) * | 2016-12-29 | 2018-09-28 | 郑元基 | Vacuum heat treatment device |
| CN108603240B (en) * | 2016-12-29 | 2020-11-06 | 郑元基 | Vacuum heat treatment apparatus |
| US10927427B2 (en) | 2016-12-29 | 2021-02-23 | Won Ki Chung | Vacuum heat treatment apparatus |
| CN107904386A (en) * | 2017-11-13 | 2018-04-13 | 遵义中铂硬质合金有限责任公司 | A kind of tool heat treatment method |
| CN107974547A (en) * | 2017-11-13 | 2018-05-01 | 遵义中铂硬质合金有限责任公司 | A kind of cutter annealing device |
| CN113621901A (en) * | 2021-08-09 | 2021-11-09 | 中国航空制造技术研究院 | Cryogenic heat treatment device |
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| CN102925644B (en) | 2014-02-12 |
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