CN106801122A - A kind of metal material deep cooling process equipment - Google Patents
A kind of metal material deep cooling process equipment Download PDFInfo
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- CN106801122A CN106801122A CN201710048754.8A CN201710048754A CN106801122A CN 106801122 A CN106801122 A CN 106801122A CN 201710048754 A CN201710048754 A CN 201710048754A CN 106801122 A CN106801122 A CN 106801122A
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- casing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/04—Hardening by cooling below 0 degrees Celsius
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The present invention provides a kind of metal material deep cooling process equipment,Including motor,Crossbeam,The axis of rolling two,Pressure liftable bar,Belt,Temperature sensor,Printed circuit board and display screen,Motor is connected by belt with the axis of rolling two,Five axis of rolling two are evenly distributed on crossbeam,Four pressure liftable bars are respectively symmetrically installed in two crossbeam lower ends,The design achieves workpiece automatically into casing function,Save labour and not disfiguring workpiece,Solve and be manually placed into workpiece in original technology,Labour intensity is big and problem of easy disfiguring workpiece,Temperature sensor is arranged on the rear end of box house,Temperature sensor is connected by electric wire with printed circuit board,Printed circuit board is connected by electric wire with display screen,The design achieves the controllable function of processing temperature,Simple structure of the present invention,Processing temperature is controllable,Not disfiguring workpiece,It is easy to operation.
Description
Technical field
The present invention is a kind of metal material deep cooling process equipment, belongs to metal material deep cooling process equipment field.
Background technology
Subzero treatment is that processed workpiece is placed in specific and controllable low temperature environment, makes the heterogeneous microstructure of material
Change is produced, so as to reach a kind of new technology for improving or improving material property, processed material is at low ambient temperatures due to micro-
See institutional framework and there occurs change, macroscopically show as the wearability of material, dimensional stability, tensile strength, residual stress
Etc. aspect raising, the performance of cryogenic treatment apparatus directly influences the carrying out of cryogenic treatment process, wants in actual applications
Ensure that subzero treatment technology produces the effect of anticipation to treatment material, it is necessary that cryogenic treatment process is reasonable.
In the prior art, extensive utilization immersing in liquid nitrogen formula refrigerating method, but the cooling rate of this method is very fast, causes heat to be answered
Power is excessive, and histologic lesion is easily caused to workpiece material, and workpiece material cooling rate in temperature-fall period is uncontrollable
, and then the adjustability of technique is influenceed, and the latent heat of vaporization using liquid nitrogen or low temperature nitrogen refrigeration just can solve immersing in liquid nitrogen
The drawbacks of, existing refrigeration plant is generally horizontal and well formula, and workpiece sends into difficult and easy damaged workpiece, and nitrogen can not reclaim profit
With.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the present invention to provide a kind of metal material deep cooling process equipment, to solve
The problem proposed in certainly above-mentioned background technology, simple structure of the present invention, processing temperature is controllable, not disfiguring workpiece, is easy to operation.
To achieve these goals, the present invention is to realize by the following technical solutions：A kind of metal material deep cooling adds
Construction equipment, including casing, volume adjustment plate, electric lift, workpiece import, the axis of rolling one, hermatic door, cooling assembly and transport
Component, the volume adjustment plate is arranged on the inside of casing, and the volume adjustment plate is connected with electric lift, the electronic liter
Drop machine is arranged on the upper surface of casing, and the workpiece import is opened in the front end of casing, and the hermatic door is arranged on workpiece import
Position, the axis of rolling one is provided with five, and five axis of rolling one are arranged on volume adjustment plate downside and are uniformly distributed, described
Cooling assembly is arranged on casing left side and right side, and the transport component is arranged on cabinet front, and the transport component is by motor, horizontal stroke
Beam, the axis of rolling two, pressure liftable bar and belt composition, the motor are connected by belt with the axis of rolling two, and the crossbeam is provided with
Two, two crossbeams are separately mounted to the left end and right-hand member of the axis of rolling two, and the axis of rolling two is provided with five, described in five
The axis of rolling two is evenly distributed on crossbeam, and the pressure liftable bar is provided with four, and four pressure liftable bars are respectively symmetrically peace
Mounted in two crossbeam lower ends, the cooling assembly by nitrogen pot, bend pipe, entrance, nitrogen input slot, pump, flexible pipe, liquid nitrogen container, go out
Mouth, temperature sensor, printed circuit board and display screen composition, the nitrogen pot are provided with two, and two nitrogen pots are pacified respectively
Mounted in casing left side and right side, the nitrogen pot is connected with entrance by bend pipe, and the entrance is provided with eight, eight entrances
The left end and right-hand member of casing are opened in respectively, and eight entrances are opened in the lower position of casing, and the nitrogen input slot is opened
The left end and right-hand member of box house are located at, eight entrances are opened between bend pipe and nitrogen input slot, and the pump is arranged on
The lower surface of box house, the outlet is connected by flexible pipe with pump, described to export the lower position for being opened in box back, institute
State outlet to be connected with liquid nitrogen container, the liquid nitrogen container is arranged on the rearward position of casing, the temperature sensor is arranged in casing
The rear end in portion, the temperature sensor is connected by electric wire with printed circuit board, and A/D conversions are welded with the printed circuit board
Device, single-chip microcomputer and D/A converter, the printed circuit board are connected by electric wire with display screen, and the display screen is fixed on casing
Front end, the display screen be arranged on workpiece import left side.
Further, sealing strip is arranged between the volume adjustment plate and casing.
Further, dense block is installed between the hermatic door and workpiece import.
Further, anti-slip veins are machined with the axis of rolling one and the axis of rolling two.
Further, valve is installed at the entrance and exit.
Further, the output end of the temperature sensor is connected with the input of A/D converter, the A/D converter
Output end be connected with the input of single-chip microcomputer, the output end of the single-chip microcomputer is connected with the input of D/A converter, the D/
The output end of A converters is connected with display screen.
Beneficial effects of the present invention：A kind of metal material deep cooling process equipment of the invention, because the present invention with the addition of casing,
Electric lift, volume adjustment plate, pump, flexible pipe and liquid nitrogen container, the design can reclaim most nitrogen, economize on resources, and solve
The problem of nitrogen recycling difficulty waste of resource in original technology.
Because the present invention with the addition of motor, the axis of rolling one, the axis of rolling two, cross bar and air pressure elevating lever, the design achieves work
Part saves labour and not disfiguring workpiece automatically into the function of casing, to solve and be manually placed into workpiece in original technology, works
Intensity is big and problem of easy disfiguring workpiece.
Because the present invention with the addition of nitrogen pot, nitrogen input slot, temperature sensor, printed circuit board and display screen, the design
The controllable function of processing temperature is realized, simple structure is easy to operation and uniformity of temperature profile, solves temperature when deep cooling is processed
The problem of degree control difficulty and skewness.
Because with the addition of sealing strip and dense block, the design improves sealing property of the invention, improves operating efficiency, because
With the addition of anti-slip veins, the design makes workpiece transport steady, improve travelling speed, because with the addition of valve, make the input of nitrogen and
The output of liquid nitrogen is controllable, and simple structure of the present invention, processing temperature is controllable, not disfiguring workpiece, is easy to operation.
Brief description of the drawings
The detailed description made to non-limiting example with reference to the following drawings by reading, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is a kind of structural representation of metal material deep cooling process equipment of the invention；
Fig. 2 is the structural representation of transport component in a kind of metal material deep cooling process equipment of the invention；
Fig. 3 is the structural representation of cooling assembly in a kind of metal material deep cooling process equipment of the invention；
Fig. 4 is temperature controlled operation principle block diagram in a kind of metal material deep cooling process equipment of the invention；
In figure：1- casings, 2- volume adjustments plate, 3- electric lifts, 4- workpiece entrance, 5- hermatic doors, 6- transport component, 7- systems
Cold component, the 8- axis of rolling one, 61- motors, 62- belts, 63- crossbeams, the 64- axis of rolling two, 65- pressure liftings bar, 701- show
Screen, 702- printed circuit boards, 703- nitrogen pots, 704- bend pipes, 705- nitrogen input slot, 706- liquid nitrogen containers, 707- TEMPs
Device, 708- outlets, 709- flexible pipes, 710- pumps, 711- entrances, 7021-A/D converters, 7022- single-chip microcomputers, 7023-D/A conversion
Device.
Specific embodiment
For technological means, creation characteristic, reached purpose and effect for making present invention realization are easy to understand, with reference to
Specific embodiment, is expanded on further the present invention.
Fig. 1-Fig. 4 is referred to, the present invention provides a kind of technical scheme：A kind of metal material deep cooling process equipment, including case
Body 1, volume adjustment plate 2, electric lift 3, workpiece import 4, the axis of rolling 1, hermatic door 5, cooling assembly 7 and transport component 6,
Volume adjustment plate 2 is arranged on the inside of casing 1, and volume adjustment plate 2 is connected with electric lift 3, and electric lift 3 is arranged on case
The upper surface of body 1, workpiece import 4 is opened in the front end of casing 1, and hermatic door 5 is arranged on the position of workpiece import 4, and the axis of rolling 1 sets
There are five, five axis of rolling 1 are arranged on the downside of volume adjustment plate 2 and are uniformly distributed, and cooling assembly 7 is arranged on the left side of casing 1
And right side, transport component 6 and be arranged on the front side of casing 1.
Transport component 6 to be made up of motor 61, crossbeam 63, the axis of rolling 2 64, pressure liftable bar 65 and belt 62, motor 61 leads to
Cross belt 62 to be connected with the axis of rolling 2 64, crossbeam 63 is provided with two, and two crossbeams 63 are separately mounted to the left end of the axis of rolling 2 64
And right-hand member, the axis of rolling 2 64 is provided with five, and five axis of rolling 2 64 are evenly distributed on crossbeam 63, and pressure liftable bar 65 is provided with four
Individual, four pressure liftable bars 65 are respectively symmetrically installed in two lower ends of crossbeam 63.
Cooling assembly 7 is by nitrogen pot 703, bend pipe 704, entrance 711, nitrogen input slot 705, pump 710, flexible pipe 709, liquid nitrogen
Tank 706, outlet 708, temperature sensor 707, printed circuit board 702 and display screen 701 are constituted, and nitrogen pot 703 is provided with two, two
Individual nitrogen pot 703 is separately mounted to the left side of casing 1 and right side, and nitrogen pot 703 is connected with entrance 711 by bend pipe 704, entrance
711 are provided with eight, and eight entrances 711 are opened in the left end and right-hand member of casing 1 respectively, and eight entrances 711 are opened under casing 1
Portion position, nitrogen input slot 705 is opened in left end and right-hand member inside casing 1, and eight entrances 711 are opened in bend pipe 704 and nitrogen
Between gas input slot 705, pump 710 is arranged on the lower surface inside casing 1, and outlet 708 is connected with pump 710 by flexible pipe 709, gone out
Mouth 708 is opened in the lower position of the rear end of casing 1, and outlet 708 is connected with liquid nitrogen container 706, and liquid nitrogen container 706 is arranged on casing 1
Rearward position, temperature sensor 707 is arranged on the rear end inside casing 1, and temperature sensor 707 passes through electric wire and printed circuit board
702 connections, are welded with A/D converter 7021, single-chip microcomputer 7022 and D/A converter 7023, printed circuit on printed circuit board 702
Plate 702 is connected by electric wire with display screen 701, and display screen 701 is fixed on the front end of casing 1, and display screen 701 enters installed in workpiece
The left side of mouth 4.
Sealing strip is arranged between volume adjustment plate 2 and casing 1, sealing is installed between hermatic door 5 and workpiece import 4
Lock, is machined with anti-slip veins on the axis of rolling 1 and the axis of rolling 2 64, valve, TEMP are provided with entrance 711 and outlet 708
The output end of device 707 is connected with the input of A/D converter 7021, output end and the single-chip microcomputer 7022 of A/D converter 7021
Input is connected, and the output end of single-chip microcomputer 7022 is connected with the input of D/A converter 7023, the output of D/A converter 7023
End is connected with display screen 701.
Specific embodiment：Pressure liftable bar 65 is preferably minimized when operator uses, it would be desirable to the metal works of processing
The upper end of the axis of rolling 2 64 is placed on, then pressure liftable bar 65 is raised, pressure liftable bar 65 drives crossbeam 63 to move up, from
And drive the axis of rolling 2 64 to move up, and then drive workpiece to move up, when workpiece is risen at workpiece import 4, operation
Personnel are fixed by the height of pressure liftable bar 65, are then turn on the power supply of motor 61, and motor 61 rotates counterclockwise the drive axis of rolling two
64 rotate counterclockwise, so as to drive workpiece to be moved rearwards by, the axis of rolling 2 64 drives the axis of rolling 1 to rotate counterclockwise, when workpiece enters
Enter after workpiece import 4 as the axis of rolling 1 continues to be moved rearwards by, after workpiece is completely into casing 1, operating personnel are by motor 61
Power supply disconnects, and the axis of rolling 1 stops operating, and workpiece is static, the design achieves workpiece automatically into the function of casing 1, saves
Labour and not disfiguring workpiece, solve and be manually placed into original technology workpiece, and labour intensity is big and easy disfiguring workpiece asks
Topic.
After workpiece enters casing 1, operator closes hermatic door 5, then opens the valve at entrance 711, and nitrogen passes through
Entrance 711 enters nitrogen input slot 705, and casing 1 is entered after being mutually mixed, and now the temperature in casing 1 starts to reduce, and temperature is passed
Sensor 707 receives temperature signal, and temperature signal is transferred to A/D converter 7021, and A/D converter 7021 changes temperature signal
Into data signal, then digital data transmission to single-chip microcomputer 7022, single-chip microcomputer 7022 receives data signal and carries out calculating treatment,
Then, to D/A converter 7023, D/A converter 7023 is again signal transmission to display screen for the signal transmission after calculating being processed
On 701, operating personnel understand processing temperature in casing 1 by observing the data on display screen 701, when temperature reaches preferable temperature
After degree, the valve that operating personnel are closed at entrance 711 stops nitrogen input, the design achieves the controllable work(of processing temperature
Can, simple structure is easy to operation and uniformity of temperature profile, solves temperature control when deep cooling is processed difficult and skewness ask
Topic.
By after the stipulated time, operating personnel open hermatic door 5, inverted machine 61 simultaneously switches on power, and makes motor 61 suitable
Hour hands are rotated so as to drive the axis of rolling 1 to rotate clockwise and then workpiece is sent out into casing 1, and workpiece sends out operator after casing 1
Member closes hermatic door 5 immediately, is then turn on the power supply of electric lift 3, and electric lift 3 is started working, the band of electric lift 3
Visibly moved long-pending adjustable plate 2 is moved down, and reduces the volume of nitrogen in casing 1, and pressure increases therewith, and liquefaction of nitrogen, operating personnel connect
The power supply of logical pump 710, liquid nitrogen container 706 is input into by the nitrogen after liquefaction by outlet 708, and the design can reclaim most nitrogen,
Economize on resources, solve the problems, such as nitrogen recycling difficulty waste of resource in original technology.
General principle of the invention and principal character and advantages of the present invention has been shown and described above, for this area skill
For art personnel, it is clear that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing substantially from it is of the invention spirit or
In the case of essential characteristic, the present invention can be in other specific forms realized.Therefore, no matter from the point of view of which point, all should be by
Embodiment regards exemplary as, and is nonrestrictive, and the scope of the present invention is by appended claims rather than above stating
Bright restriction, it is intended that all changes fallen in the implication and scope of the equivalency of claim are included in the present invention
It is interior.Any reference in claim should not be considered as the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (6)
1. a kind of metal material deep cooling process equipment, including casing（1）, volume adjustment plate（2）, electric lift（3）, workpiece enters
Mouthful（4）, the axis of rolling one（8）, hermatic door（5）, cooling assembly（7）With transport component（6）, it is characterised in that：The volume adjustment
Plate（2）Installed in casing（1）Inside, the volume adjustment plate（2）With electric lift（3）Connection, the electric lift
（3）Installed in casing（1）Upper surface, the workpiece import（4）It is opened in casing（1）Front end, the hermatic door（5）Install
In workpiece import（4）Position, the axis of rolling one（8）It is provided with five, five axis of rolling one（8）Installed in volume adjustment plate
（2）Downside is simultaneously uniformly distributed, the cooling assembly（7）Installed in casing（1）Left side and right side, the transport component（6）Install
In casing（1）Front side；
The transport component（6）By motor（61）, crossbeam（63）, the axis of rolling two（64）, pressure liftable bar（65）And belt（62）
Composition, the motor（61）By belt（62）With the axis of rolling two（64）Connection, the crossbeam（63）It is provided with two, described in two
Crossbeam（63）It is separately mounted to the axis of rolling two（64）Left end and right-hand member, the axis of rolling two（64）It is provided with five, described in five
The axis of rolling two（64）It is evenly distributed on crossbeam（63）On, the pressure liftable bar（65）It is provided with four, four pressure liftables
Bar（65）It is respectively symmetrically installed in two crossbeams（63）Lower end；
The cooling assembly（7）By nitrogen pot（703）, bend pipe（704）, entrance（711), nitrogen input slot（705）, pump（710）、
Flexible pipe（709）, liquid nitrogen container（706）, outlet（708）, temperature sensor（707）, printed circuit board（702）And display screen（701）
Composition, the nitrogen pot（703）It is provided with two, two nitrogen pots（703）It is separately mounted to casing（1）Left side and right side,
The nitrogen pot（703）With entrance（711) by bend pipe（704）Connection, the entrance（711) eight are provided with, are entered described in eight
Mouthful（711) casing is opened in respectively（1）Left end and right-hand member, eight entrances（711) it is opened in casing（1）Lower portion
Put, the nitrogen input slot（705）It is opened in casing（1）Internal left end and right-hand member, eight entrances（711) it is opened in curved
Pipe（704）With nitrogen input slot（705）Between, the pump（710）Installed in casing（1）Internal lower surface, the outlet
（708）By flexible pipe（709）With pump（710）Connection, the outlet（708）It is opened in casing（1）The lower position of rear end, it is described
Outlet（708）With liquid nitrogen container（706）Connection, the liquid nitrogen container（706）Installed in casing（1）Rearward position, the temperature passes
Sensor（707）Installed in casing（1）Internal rear end, the temperature sensor（707）By electric wire and printed circuit board（702）
Connection, the printed circuit board（702）On be welded with A/D converter（7021）, single-chip microcomputer（7022）And D/A converter
（7023）, the printed circuit board（702）By electric wire and display screen（701）Connection, the display screen（701）It is fixed on casing
（1）Front end, the display screen（701）Installed in workpiece import（4）Left side.
2. a kind of metal material deep cooling process equipment according to claim 1, it is characterised in that：The volume adjustment plate
（2）With casing（1）Between be arranged on sealing strip.
3. a kind of metal material deep cooling process equipment according to claim 1, it is characterised in that：The hermatic door（5）With
Workpiece import（4）Between dense block is installed.
4. a kind of metal material deep cooling process equipment according to claim 1, it is characterised in that：The axis of rolling one（8）
With the axis of rolling two（64）On be machined with anti-slip veins.
5. a kind of metal material deep cooling process equipment according to claim 1, it is characterised in that：The entrance（711) and
Outlet（708）Place is provided with valve.
6. a kind of metal material deep cooling process equipment according to claim 1, it is characterised in that：The temperature sensor
（707）Output end and A/D converter（7021）Input connection, the A/D converter（7021）Output end and monolithic
Machine（7022）Input connection, the single-chip microcomputer（7022）Output end and D/A converter（7023）Input connection, institute
State D/A converter（7023）Output end and display screen（701）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048754.8A CN106801122B (en) | 2017-01-23 | 2017-01-23 | A kind of metal material deep cooling process equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048754.8A CN106801122B (en) | 2017-01-23 | 2017-01-23 | A kind of metal material deep cooling process equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106801122A true CN106801122A (en) | 2017-06-06 |
| CN106801122B CN106801122B (en) | 2018-01-26 |
Family
ID=58987277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710048754.8A Active CN106801122B (en) | 2017-01-23 | 2017-01-23 | A kind of metal material deep cooling process equipment |
Country Status (1)
| Country | Link |
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Citations (9)
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|---|---|---|---|---|
| EP0301168A1 (en) * | 1987-07-27 | 1989-02-01 | Cryogenics International, Inc. | Apparatus and method for the deep cryogenic treatment of materials |
| CN1305014A (en) * | 2001-02-05 | 2001-07-25 | 华南理工大学 | Microcomputer controlled deeply cold processing equipment and its technology |
| CN201183810Y (en) * | 2008-02-15 | 2009-01-21 | 王绍钢 | Ultra low temperature deep cold treatment apparatus |
| CN101363074A (en) * | 2008-09-25 | 2009-02-11 | 浙江工业大学 | Conveyer belt type cryogenic treatment apparatus |
| CN201343554Y (en) * | 2008-12-24 | 2009-11-11 | 四川科强电子技术有限责任公司 | Cryogenic treatment system for workpieces |
| CN201416023Y (en) * | 2009-06-19 | 2010-03-03 | 天津市热处理研究所有限公司 | On-line sub-zero treatment device |
| EP2361994A1 (en) * | 2010-02-23 | 2011-08-31 | Air Products and Chemicals, Inc. | Method of metal processing using cryogenic cooling |
| 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 |
| CN105972901A (en) * | 2016-02-27 | 2016-09-28 | 中国科学院理化技术研究所 | Cryogenic cooling box |
-
2017
- 2017-01-23 CN CN201710048754.8A patent/CN106801122B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0301168A1 (en) * | 1987-07-27 | 1989-02-01 | Cryogenics International, Inc. | Apparatus and method for the deep cryogenic treatment of materials |
| CN1305014A (en) * | 2001-02-05 | 2001-07-25 | 华南理工大学 | Microcomputer controlled deeply cold processing equipment and its technology |
| CN201183810Y (en) * | 2008-02-15 | 2009-01-21 | 王绍钢 | Ultra low temperature deep cold treatment apparatus |
| CN101363074A (en) * | 2008-09-25 | 2009-02-11 | 浙江工业大学 | Conveyer belt type cryogenic treatment apparatus |
| CN201343554Y (en) * | 2008-12-24 | 2009-11-11 | 四川科强电子技术有限责任公司 | Cryogenic treatment system for workpieces |
| CN201416023Y (en) * | 2009-06-19 | 2010-03-03 | 天津市热处理研究所有限公司 | On-line sub-zero treatment device |
| EP2361994A1 (en) * | 2010-02-23 | 2011-08-31 | Air Products and Chemicals, Inc. | Method of metal processing using cryogenic cooling |
| 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 |
| CN105972901A (en) * | 2016-02-27 | 2016-09-28 | 中国科学院理化技术研究所 | Cryogenic cooling box |
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| Publication number | Publication date |
|---|---|
| CN106801122B (en) | 2018-01-26 |
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