CN101775468B - Normal-pressure nitrogen and water mixed gas jet quenching device - Google Patents
Normal-pressure nitrogen and water mixed gas jet quenching device Download PDFInfo
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- CN101775468B CN101775468B CN2010101241825A CN201010124182A CN101775468B CN 101775468 B CN101775468 B CN 101775468B CN 2010101241825 A CN2010101241825 A CN 2010101241825A CN 201010124182 A CN201010124182 A CN 201010124182A CN 101775468 B CN101775468 B CN 101775468B
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000010791 quenching Methods 0.000 title claims abstract description 37
- 230000000171 quenching effect Effects 0.000 title claims abstract description 37
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 title claims abstract description 20
- 238000000889 atomisation Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to a normal-pressure nitrogen and water mixed gas jet quenching device, comprising an air compressor, an oil-water separator, a dryer, a nitrogen machine, a supercharger and a controller, an air storage tank 1, an air storage tank 2, an air storage tank 3, an air storage tank 4, an air storage tank 5 and the like, wherein the air storage tank 4 and the air storage tank 5 are connected with a cooling device and an atomization device. The mixture mixed with nitrogen and atomized water vapor according to a certain ratio is taken as a quenching medium, and is jetted to the surface of a workpiece at a certain speed by the cooling device so as to reduce the temperature of a test piece, thus reaching the purpose of quenching. On one side, the device can solve the deformation and stress of the workpiece caused by too rapid cooling speed during water quenching, on the other side, the requirement of pure gas quenching for a vacuum high pressure device during reaching the effect of water quenching can be satisfied. The quenching device has the characteristics of simple equipment, environmental protection and energy conservation, small deformation and stress of the quenching piece and controllable quenching process and parameters, can automatically control the process flow of quenching through combining a computer, and can realize local quenching.
Description
Technical field
The present invention relates to a kind of heat-treatment quenching device, specifically is a kind of normal pressure nitrogen, water mixed gas jet quenching device.
Background technology
Characteristics such as the gas quenching technology has clean environment firendly, workpiece distortion is little, energy consumption is low, process and controllable parameters have obtained the concern of international thermal treatment industry.But present research shows; Because generally the heat-conduction coefficient of gas is all littler than oil and aqueous medium; So high pressure gas quenching wants to reach the hardness effect after the shrend, just must consider strict demand to the vacuum high-pressure quenching apparatus, will increase cost like this; And the shrend initial stage can produce a kind of fluid film between water and workpiece, and the air that comprises in the fluid film can slow down the thermal conduction between water and the workpiece, thereby reduces the coefficient of heat transfer between water and the workpiece, causes the shrend initial stage coefficient of heat transfer less.
Summary of the invention
The purpose of this invention is to provide a kind ofly have that equipment is simple, normal pressure nitrogen, the water mixed gas jet quenching device of the distortion of environmental protection and energy saving, quenching workpiece and characteristics such as stress is little, quenching process and controllable parameters system.
Technical scheme of the present invention is: the quenching device system comprises air compressor machine, water-and-oil separator, drying machine, nitrogen machine, supercharger and unit, gas-holder 1, gas-holder 2, gas-holder 3, gas-holder 4 and gas-holder 5 etc.; Air compressor machine, gas-holder 1, water-and-oil separator, drying machine connect successively; Nitrogen machine connects drying machine, gas-holder 3; Drying machine connects gas-holder 2; Gas-holder 2 is communicated with gas-holder 3 and is connected supercharger, and supercharger is connected with gas-holder 5 with gas-holder 4, is connected with refrigerating unit and atomisation unit with gas-holder 4 and gas-holder 5.
Constituting of refrigerating unit: be made up of urceolus, inner core, the upper and lower capping that is connected with urceolus, a plurality of current collector are arranged in inner core and be connected with upper cover plate, the sidewall of inner core and bottom surface have some apertures respectively.
The structure of atomisation unit is: on a cylindrical shell, establish the different shoulder hole of diameter, in the ladder position filtering net is arranged, in a certain side of cylindrical shell pod apertures is arranged, at cylinder inboard wall processing diversion trench, communicate cylindrical shell two ends joint flange with pod apertures.
Normal pressure nitrogen of the present invention, water mixed gas jet quenching device are combined into nitrogen and atomized water the quenching mode of mixed gas; Can improve the coefficient of heat transfer of heat-eliminating medium (being nitrogen, water mixed gas) with respect to gas quenching on the one hand; Between workpiece and quenchant, produce fluid film in the time of conventional shrend can being solved with respect to shrend on the other hand; Thereby the problem that stops heat exchange between workpiece and the quenchant further improves the cooling performance of quenchant.In addition; Normal pressure nitrogen, water mixed gas jet quenching do not need vacuum high-pressure equipment; Have that equipment is simple, the distortion of environmental protection and energy saving, quenching workpiece and characteristics such as stress is little, quenching process and controllable parameters system; Combine to realize controlling automatically the quenching technology flow process as required with computingmachine, also can realize selective hardening.
Description of drawings
Fig. 1 is normal pressure nitrogen of the present invention, water mixed gas jet quenching device system chart;
Fig. 2 is the atomisation unit synoptic diagram of normal pressure nitrogen of the present invention, water mixed gas jet quenching device;
Fig. 3 is the refrigerating unit synoptic diagram of normal pressure nitrogen of the present invention, water mixed gas jet quenching device.
Among the figure, 1-upper flange, 2-prosopyle, 3-pod apertures, 4-diversion trench, 5-filtering net; The 6-lower flange, 7-outlet, 8-cover plate, 9-upper cover, 10-urceolus, 11-current collector; 12-inner core areole, 13-inner core, 14-inner core bottom outlet, capping under the 15-, 16-inlet, 17-ring flange.
Embodiment
Quenching device of the present invention system comprises air compressor machine, water-and-oil separator, drying machine, nitrogen machine, supercharger and unit, gas-holder 1, gas-holder 2, gas-holder 3, gas-holder 4 and gas-holder 5 etc.; Partly connecting relation is as shown in Figure 1 for each; Air compressor machine, gas-holder 1, water-and-oil separator, drying machine connect successively, and nitrogen machine connects drying machine, gas-holder 3, and drying machine connects gas-holder 2; Gas-holder 2 is communicated with and is connected supercharger with gas-holder 3; Unit is connected with supercharger, and supercharger is connected with gas-holder 5 with gas-holder 4, and gas-holder 4 is connected with refrigerating unit and atomisation unit with gas-holder 5; Constituting of refrigerating unit: 8 current collector 11 are connected on the cover plate 8 through long screw (not marking among Fig. 3); Upper cover 9, capping 15 down, urceolus 10, outlet 7 and ring flange 17 are integrally welded; Wherein ring flange can be connected with ring flange in the atomisation unit, inner core sidewall and bottom surface respectively drill diameter be 5mm aperture several.The atomisation unit structure is: the different shoulder hole of drill diameter on the atomisation unit cylindrical shell, and the welding filtering net 5 in the ladder position, it is the steel plate of 2mm that filtering net adopts thickness; And drill diameter is the hole of 1.2mm in the above; In a certain sidetracking pod apertures 3 of cylindrical shell,, communicate with pod apertures at cylinder inboard wall processing diversion trench 4; After processing, the intermediary pod apertures, welds lower flange simultaneously below with top dead with the upper flange weldering.Resistance strain meter among Fig. 1 is the dynamic signal analysis system of model DH5922, and PC is association's computingmachine that image data is used.
Working process: air is sucked gas-holder 1 through air compressor machine; Then through efficient water-and-oil separator; After air purge drying machine drying, preparing purity in the input PSA nitrogen machine again is the nitrogen more than 99%; Deposit in then in gas-holder 2 and the gas-holder 3, through the nitrogen supercharging machine nitrogen pressure is pressurized to 15MPa from 0.6MPa then, be deposited at last in gas-holder 4 and the gas-holder 5.Open the valve of the high pressure nitrogen behind gas-holder 4 and the gas-holder 5 and on the one hand nitrogen is sent into refrigerating unit through atomisation unit; Swiftly flowing on the other hand nitrogen blows out water from the water storage bottle; Enter into atomisation unit through prosopyle and pod apertures and diversion trench; And be atomized into the very little vaporific drop of particle diameter through filtering net; This moment, the nitrogen and the vaporific drop of certain ratio of mixture mixed through the refrigerating unit that designs voluntarily, were ejected into workpiece surface with certain speed at last, and the temperature that reduces test specimen is to reach the purpose of quenching.Utilize of the variation of computer data acquiring software simultaneously through the thermocouple measurement workpiece temperature.
Claims (3)
1. a normal pressure nitrogen, water mixed gas jet quenching device comprise air compressor machine, water-and-oil separator, drying machine, nitrogen machine, supercharger and unit, gas-holder 1, gas-holder 2, gas-holder 3, gas-holder 4 and gas-holder 5; Air compressor machine, gas-holder 1, water-and-oil separator, drying machine connect successively; Nitrogen machine connects drying machine, and gas-holder 2 is communicated with gas-holder 3 and is connected supercharger, and supercharger is connected with gas-holder 5 with gas-holder 4; Its working process is: through air compressor machine air is sucked gas-holder 1; Through water-and-oil separator, after air purge drying machine drying, preparing purity in the input nitrogen machine again is the nitrogen more than 99% then, deposits in then in gas-holder 2 and the gas-holder 3; Through supercharger nitrogen pressure is pressurized to 15MPa from 0.6MPa then; Be deposited at last in gas-holder 4 and the gas-holder 5, it is characterized in that being connected atomisation unit with gas-holder 4 with gas-holder 5, atomisation unit connects refrigerating unit.
2. normal pressure nitrogen according to claim 1, water mixed gas jet quenching device; It is characterized in that constituting of refrigerating unit: form by urceolus, inner core, the upper and lower capping that is connected with urceolus; A plurality of current collector are arranged in inner core and be connected with upper cover plate, the sidewall of inner core and bottom surface have some apertures respectively.
3. normal pressure nitrogen according to claim 1, water mixed gas jet quenching device; The structure that it is characterized in that atomisation unit is: on a cylindrical shell, establish the different shoulder hole of diameter; In the ladder position filtering net is arranged, pod apertures is arranged, at cylinder inboard wall processing diversion trench in a certain side of cylindrical shell; Communicate cylindrical shell two ends joint flange with pod apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101241825A CN101775468B (en) | 2010-03-15 | 2010-03-15 | Normal-pressure nitrogen and water mixed gas jet quenching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101241825A CN101775468B (en) | 2010-03-15 | 2010-03-15 | Normal-pressure nitrogen and water mixed gas jet quenching device |
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| Publication Number | Publication Date |
|---|---|
| CN101775468A CN101775468A (en) | 2010-07-14 |
| CN101775468B true CN101775468B (en) | 2012-07-25 |
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| CN2010101241825A Expired - Fee Related CN101775468B (en) | 2010-03-15 | 2010-03-15 | Normal-pressure nitrogen and water mixed gas jet quenching device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107576559A (en) * | 2017-10-11 | 2018-01-12 | 中国航发北京航空材料研究院 | A kind of cooling system for being used in high frequency fatigue test prevent sample overheat |
| CN107694796B (en) * | 2017-10-18 | 2023-02-28 | 浙江丰诚智能科技有限公司 | Full-automatic hot forging manufacturing system ink jet mechanism |
| CN113025788A (en) * | 2021-02-03 | 2021-06-25 | 上海专一热处理有限公司 | Heat treatment process for rare metal and superhard metal parts |
| CN116143346B (en) * | 2023-03-11 | 2024-04-26 | 昆明理工大学 | Reusable oil-water separation device and separation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5820705A (en) * | 1993-05-18 | 1998-10-13 | Aluminum Company Of America | Spray quenching of metal with liquid coolant containing dissolved gas |
| CN2663429Y (en) * | 2003-12-01 | 2004-12-15 | 昆明理工大学 | Pressure gas quenching experimental device for metals and alloys |
| CN201250256Y (en) * | 2008-08-14 | 2009-06-03 | 管序荣 | Water mist quenching device of steel pipe |
-
2010
- 2010-03-15 CN CN2010101241825A patent/CN101775468B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5820705A (en) * | 1993-05-18 | 1998-10-13 | Aluminum Company Of America | Spray quenching of metal with liquid coolant containing dissolved gas |
| CN2663429Y (en) * | 2003-12-01 | 2004-12-15 | 昆明理工大学 | Pressure gas quenching experimental device for metals and alloys |
| CN201250256Y (en) * | 2008-08-14 | 2009-06-03 | 管序荣 | Water mist quenching device of steel pipe |
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| CN101775468A (en) | 2010-07-14 |
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