CN105838858A - Bainite quick air-cooled isothermal quenching furnace - Google Patents
Bainite quick air-cooled isothermal quenching furnace Download PDFInfo
- Publication number
- CN105838858A CN105838858A CN201610326809.2A CN201610326809A CN105838858A CN 105838858 A CN105838858 A CN 105838858A CN 201610326809 A CN201610326809 A CN 201610326809A CN 105838858 A CN105838858 A CN 105838858A
- Authority
- CN
- China
- Prior art keywords
- air
- isothermal
- bainite
- isothermal quenching
- quick
- 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.)
- Granted
Links
- 238000010791 quenching Methods 0.000 title claims abstract description 32
- 230000000171 quenching effect Effects 0.000 title claims abstract description 32
- 229910001563 bainite Inorganic materials 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 150000003839 salts Chemical class 0.000 claims description 38
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000011780 sodium chloride Substances 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 210000005056 cell body Anatomy 0.000 description 3
- 239000000112 cooling gas Substances 0.000 description 3
- 238000005279 austempering Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/20—Isothermal quenching, e.g. bainitic hardening
Landscapes
- 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)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The invention discloses a bainite quick air-cooled isothermal quenching furnace, and relates to a quick cooling device of a bainite isothermal quenching device. The bainite quick air-cooled isothermal quenching furnace comprises an isothermal quenching chamber, a heating device, a lifting device and a conveying device; the heating device and the lifting device are mounted on one side of the isothermal quenching chamber; the conveying device penetrates through the whole heating device and the isothermal quenching chamber; and the lifting device feeds a part to be machined entering the isothermal quenching chamber into an isothermal quenching groove in the lower part of the isothermal quenching chamber. The bainite quick air-cooled isothermal quenching furnace further comprises a quick air cooling device and a cold air output device; and the cold air output device is inserted in the isothermal quenching groove, and is connected with an output end of the quick air cooling device through a pipeline. The bainite quick air-cooled isothermal quenching furnace has such characteristics as novel structure, simple machining, convenience for use, high production efficiency, reduction of manufacturing and production costs and convenience for transformation of traditional equipment, and integrates economy and practicability as a whole.
Description
Technical field
Bainite of the present invention quick air cooling isothermal quenching furnace, relates to a kind of austempering device
Fast cooling device.
Background technology
Along with the quality requirement of the high-accuracy general parts of mechanical industry steps up, parts body tissue
Isothermal quenching technique for bainite structure is used widely.Wherein cooling velocity during isothermal hardening, salt
The salt temperature uniformity of liquid plays conclusive effect to the final effect of the isothermal hardening of parts.Equipment in the past
The mode solving this problem is: first in the time increasing volume of manufacture isothermal cell body, increase the throwing of Nacl
High-volume, such as: the isothermobath that useful load is 1000kg/ time, cell body volume is 22m3, isothermobath fused salt
Electrical heating power 240KW, a fused salt time is 80 hours；For control isothermal hardening time salt liquid temp upper
Rising, complete cooling task by the mode of adding water before quenching, saline solution circulation mixer and flow guide system have come
Become.Its result is: when 1, isothermobath makes, materials put into big, add manufacturing cost；2, isothermal is put into
Raw material (salt made from earth containing a comparatively high percentage of sodium chloride) injected volume of quenching is high, improves production cost；3, a fused salt time is long, Yi Ji
Increase accordingly for constant temperature power consumption needed for safeguarding saline solution when using continuously；4, using continuously, salt temperature remains high,
Then can only reduce salt temperature with increasing a large amount of water quality or reduce useful load, owing to too much adding water quality, can be straight
Connecing and affect the most several times of workpiece quenching tissue, especially summer, defect is clearly.
For the problem in the presence of above-mentioned prior art, the research and design quick air cooling of a kind of novel bainite
Isothermal quenching furnace, thus the problem in the presence of overcoming prior art is the most necessary.
Summary of the invention
In view of the problem in the presence of above-mentioned prior art, it is an object of the invention to research and design a kind of novel
Bainite quick air cooling isothermal quenching furnace.For thoroughly solving the deficiencies in the prior art, stablize parts
Isothermal hardening after quality, reduce the production cost that comes into operation of manufacture machine, improve business efficiency, this
Bright on the basis of absorbing, digesting domestic and international sophisticated equipment and technique, well-designed, science innovation, voluntarily
Design, produce bainite quick air cooling isothermal quenching furnace.
The technical solution of the present invention is achieved in that
Bainite of the present invention quick air cooling isothermal quenching furnace, including isothermal hardening room, heater,
Lowering or hoisting gear and conveying device；Heater and lowering or hoisting gear are loaded on the side of isothermal hardening room；Conveying device
Run through whole heater and isothermal hardening room；Lowering or hoisting gear will go into the workpiece to be added of isothermal hardening room and send
Enter in the isothermal hardening groove of bottom, isothermal hardening room；It is characterized in that described bainite quick air cooling isothermal
Glowing furnace also includes quick air device for cooling and cold air output device；Cold air output device is inserted in isothermal hardening groove
In；And be connected by the output of pipeline with quick air device for cooling；
Quick air device for cooling of the present invention includes: air compressor, air accumulator and air refrigerating machine；Empty
Air compressor, air accumulator and air refrigerating machine pass sequentially through pipeline and connect；
Cold air output device of the present invention is the frame structure being welded by many seamless steel pipes, often
The part that root steel pipe is inserted in isothermal hardening groove in salt made from earth containing a comparatively high percentage of sodium chloride is uniformly machined with venthole；Cold air output device with
The gas outlet of air refrigerating machine is connected.
Air compressor of the present invention is screw air compressor.
Air refrigerating machine of the present invention is that flat air is frozen and dried machine.
Isothermal hardening cell body volume of the present invention is 10m3, useful load 1200kg/ time, isothermal is quenched
Fire raw material 14T, isothermobath fused salt electrical heating power 90KW.
The salt temperature type of cooling of the present invention is on the basis of adding water, and it is special to add by air compressor, air accumulator
The quick air device for cooling that is integrated of flat gas refrigeration machine three machine, be input to special flat with common gas
In formula dry gas refrigerator, after its cold air being cooled to 3 degree Celsius, then by branched seamless steel pipe
Cold air is rapidly input in the saline solution of isothermobath, saline solution is cooled down, and can be salt liquid temp control
System within the specific limits, can make saline solution quickly flow again simultaneously well.At salt during fused salt
When temperature reaches uniform temperature, nature gas can be passed through in isothermal hardening groove by cold air output device, due to
Acted on by gas, the saline solution that melted can be pushed as on unfused salt made from earth containing a comparatively high percentage of sodium chloride, thus accelerate fused salt speed
Degree.
It is an advantage of the invention that it will be apparent that be mainly manifested in:
1, owing to invention increases quick air device for cooling, cooling gas enters can be quickly and effectively salt in saline solution
Temperature drop is low to get off, and efficiently solves the quick rising of the conventional workpiece salt temperature when entering isothermobath quenching,
Hot soak condition and the temp effects such as impact, highly desirable overcome simultaneously and need into reducing salt liquid temp
Add a large amount of water quality to meet the unstability of austempering temperature, can essence control salt liquid hold-up, it is ensured that isothermal is quenched
The matrix mechanical performance of firer's part, bainite structure i.e. rank；
2, owing to invention increases quick air device for cooling, cooling gas enters in saline solution, can effectively
Saline solution temperature control, in certain scope, can make saline solution quickly flow well again, promote saline solution
Convection current is formed, so that it is guaranteed that the uniformity of salt temperature is relatively uniform, to meet the hard of quenching workpiece in isothermobath
Angle value and uniformity of hardness ratio are more consistent；
3, owing to invention increases cold air output device, during fused salt when salt temperature reaches uniform temperature,
Nature gas can be passed through in isothermal hardening groove by cold air output device, can be the most molten under the effect of gas
The warm liquid changed pushes on unfused salt made from earth containing a comparatively high percentage of sodium chloride, thus accelerates fused salt speed, is greatly saved the time of fused salt
And power consumption.
4, the body volume of isothermal hardening groove of the present invention is by conventional 22m3Drop to 10m3, useful load is by conventional
Increasing to 1200kg/ time for 1000kg/ time, fused salt electrical heating power is reduced to 90KW by original 240KW,
But the fused salt time is shortened to 24 hours/time by 80 original hours/time；After quickly cooling gas isothermal hardening
Workpiece hardness value and uniformity of hardness be significantly superior to originally without cooling down gas-cooled isothermal hardening
The workpiece of technique, device fabrication low cost, raw material (salt made from earth containing a comparatively high percentage of sodium chloride) less investment, the fused salt time is short, safeguards
Electrical heating consumption needed for salt temperature is few, salt Wen Nengke estimate drip control set in the range of, salt made from earth containing a comparatively high percentage of sodium chloride contain accuracy of measurement
Height, reduction workpiece quality fast, isothermal hardening are stable, and body tissue structural behaviour is good, under metallographic structure is
Bainite structure, rank is more than 2 grades.
5, the present invention runs the most continuously, and production efficiency is high, power consumption is low, with the equipment of conventional homogeneity same amount
Compare, productivity ratio 20% can be improved, the input 80% that economizes in raw materials, save electricity reach 50%, Increasing Production and Energy Saving
Effect is the most notable.
The present invention have novel structure, process easy, easy to use, production efficiency is high, reduce and manufacture and raw
Producing cost, be easy to the advantages such as existing equipment transformation, its high-volume puts goods on the market and will produce positive society's effect
Beneficial and significant economic benefit.
Accompanying drawing explanation
The present invention has 1 width accompanying drawing, wherein:
Accompanying drawing 1 present configuration schematic diagram.
In the drawings: 1, lowering or hoisting gear 2, heater 3, isothermal hardening room 4, seamless steel pipe 5,
Workpiece 6 to be added, isothermal hardening groove 7, venthole 8, air refrigerating machine 9, air accumulator 10, sky
Air compressor.
Detailed description of the invention
As shown in drawings, bainite quick air cooling isothermal quenching furnace, including isothermal for the specific embodiment of the present invention
Quenching chamber 3, heater 2, lowering or hoisting gear 1 and conveying device；Heater 2 and lowering or hoisting gear 1 are loaded on
The side of isothermal hardening room 3；Conveying device runs through whole heater 2 and isothermal hardening room 3；Lowering or hoisting gear
1 workpiece to be added 5 that will go into isothermal hardening room 3 is sent to the isothermal hardening groove 6 of bottom, isothermal hardening room 3
In；It is characterized in that described bainite quick air cooling isothermal quenching furnace also includes quick air device for cooling and cold air
Output device；Cold air output device is inserted in isothermal hardening groove 6；And by pipeline and quick air device for cooling
Output be connected；
Quick air device for cooling includes: air compressor 10, air accumulator 9 and air refrigerating machine 8；Air compresses
Machine 10 is screw air compressor；Air refrigerating machine 8 is frozen and dried machine for flat air；Air compressor
10, air accumulator 9 and air refrigerating machine 8 pass sequentially through pipeline connection；
Cold air output device is the frame structure being welded by many seamless steel pipes, is inserted at every steel pipe
In isothermal hardening groove 6, the part in salt made from earth containing a comparatively high percentage of sodium chloride is uniformly machined with venthole 7；Cold air output device and air refrigerating machine
The gas outlet of 8 is connected.
Isothermal hardening groove 6 body volume is 10m3, useful load 1200kg/ time, isothermal hardening raw material 14T,
Isothermobath fused salt electrical heating power 90KW.
The above, the only preferably detailed description of the invention of the present invention, but protection scope of the present invention is not
Be confined to this, all those familiar with the art in technical scope disclosed by the invention, according to
The design of technical scheme and the present invention thereof in addition equivalent or change all should contain the present invention's
Within protection domain.
Claims (4)
1. a bainite quick air cooling isothermal quenching furnace, including isothermal hardening room (3), heater (2),
Lowering or hoisting gear (1) and conveying device；Heater (2) and lowering or hoisting gear (1) are loaded on isothermal hardening room (3)
Side；Conveying device runs through whole heater (2) and isothermal hardening room (3)；Lowering or hoisting gear (1)
The workpiece to be added (5) of isothermal hardening room (3) will be delivered into by conveying device, be sent to isothermal hardening room
(3) in the isothermal hardening groove (6) of bottom；It is characterized in that the quick air cooling isothermal hardening of described bainite
Stove also includes quick air device for cooling and cold air output device；Cold air output device is inserted in isothermal hardening groove (6)
In；And be connected by the output of pipeline with quick air device for cooling；
Described quick air device for cooling includes: air compressor (10), air accumulator (9) and air refrigerating machine
(8)；Air compressor (10), air accumulator (9) and air refrigerating machine (8) pass sequentially through pipeline and connect；
Described cold air output device is the frame structure being welded by many seamless steel pipes (4), at every
The part that steel pipe is inserted in isothermal hardening groove (6) interior salt made from earth containing a comparatively high percentage of sodium chloride is uniformly machined with venthole (7)；Cold air exports
Device is connected with the gas outlet of air refrigerating machine (8).
Bainite the most according to claim 1 quick air cooling isothermal quenching furnace, it is characterised in that described
Air compressor (10) is screw air compressor.
Bainite the most according to claim 1 quick air cooling isothermal quenching furnace, it is characterised in that described
Air refrigerating machine (8) is that flat air is frozen and dried machine.
Bainite the most according to claim 1 quick air cooling isothermal quenching furnace, it is characterised in that described
Isothermal hardening groove (6) body volume is 10m3, useful load 1200kg/ time, isothermal hardening raw material 14T,
Isothermobath fused salt electrical heating power 90KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326809.2A CN105838858B (en) | 2016-05-17 | 2016-05-17 | Bainite is quickly gas-cooled isothermal quenching furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326809.2A CN105838858B (en) | 2016-05-17 | 2016-05-17 | Bainite is quickly gas-cooled isothermal quenching furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105838858A true CN105838858A (en) | 2016-08-10 |
| CN105838858B CN105838858B (en) | 2017-12-22 |
Family
ID=56592551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610326809.2A Expired - Fee Related CN105838858B (en) | 2016-05-17 | 2016-05-17 | Bainite is quickly gas-cooled isothermal quenching furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105838858B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750139A (en) * | 2019-03-19 | 2019-05-14 | 上海颐柏科技股份有限公司 | Controllable cooling system for impewdance matching |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613488Y (en) * | 2003-03-20 | 2004-04-28 | 东风汽车公司 | Intenral heating-cooling nitrate quenching furnace |
| CN202054866U (en) * | 2011-04-02 | 2011-11-30 | 山东四方钢管设备制造有限公司 | Isothermal quenching salt bath furnace |
| CN204151375U (en) * | 2014-08-21 | 2015-02-11 | 沈阳罕王精密轴承有限公司 | The whipping appts of bearing products quenching nitrate solution groove |
| CN104745980A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Isothermal quenching of 2A12 aluminum alloy sheet |
-
2016
- 2016-05-17 CN CN201610326809.2A patent/CN105838858B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613488Y (en) * | 2003-03-20 | 2004-04-28 | 东风汽车公司 | Intenral heating-cooling nitrate quenching furnace |
| CN202054866U (en) * | 2011-04-02 | 2011-11-30 | 山东四方钢管设备制造有限公司 | Isothermal quenching salt bath furnace |
| CN104745980A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Isothermal quenching of 2A12 aluminum alloy sheet |
| CN204151375U (en) * | 2014-08-21 | 2015-02-11 | 沈阳罕王精密轴承有限公司 | The whipping appts of bearing products quenching nitrate solution groove |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750139A (en) * | 2019-03-19 | 2019-05-14 | 上海颐柏科技股份有限公司 | Controllable cooling system for impewdance matching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105838858B (en) | 2017-12-22 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220107 Address after: 315000 room 216-28, Kechuang building, No. 777, Zhongguan West Road, Zhuangshi street, Zhenhai District, Ningbo City, Zhejiang Province Patentee after: Ningbo Feimei Technology Co.,Ltd. Address before: 116600 No. 92, Tieshan East Road, Jinzhou new district, Dalian, Liaoning Patentee before: DALIAN SHENGJIE HEAT TREATMENT TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220623 Address after: 315000 No. 777 Zhongguanxi Road, Zhuangshi Street, Zhenhai District, Ningbo City, Zhejiang Province Patentee after: Zhejiang Feirui Technology Co.,Ltd. Address before: 315000 room 216-28, Kechuang building, No. 777, Zhongguan West Road, Zhuangshi street, Zhenhai District, Ningbo City, Zhejiang Province Patentee before: Ningbo Feimei Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 |