CN101629230A - Violent stirring and quenching cooling system and quenching cooling method - Google Patents
Violent stirring and quenching cooling system and quenching cooling method Download PDFInfo
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- CN101629230A CN101629230A CN200910165680A CN200910165680A CN101629230A CN 101629230 A CN101629230 A CN 101629230A CN 200910165680 A CN200910165680 A CN 200910165680A CN 200910165680 A CN200910165680 A CN 200910165680A CN 101629230 A CN101629230 A CN 101629230A
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Abstract
The invention relates to a violent stirring and quenching cooling system. A plurality of guide devices distributed abreast are arranged in a quenching tank, the guide devices are U-shaped pipes with upward openings at two ends, one of the openings is aligned with a quenching workpiece, the other opening is internally provided with a propeller blade of a stirring device, and a motor of the stirring device is fixed above the quenching tank. The invention also discloses a quenching cooling method using the violent stirring and quenching cooling system, which comprises the following steps: a, starting the stirring device, mixing quenching liquid in the quenching tank; b, dipping a quenching workpiece into the quenching liquid; c, starting a quenching liquid cooling device to rapidly reduce temperature of the quenching liquid and cool the quenching liquid. Because the quenching tank is internally provided with the guide devices which are distributed abreast, the stirring device can enable the quenching liquid on the surface of the quenching workpiece to generate high-speed flowing through the guide devices, the violent stirring and quenching cooling system quickens the heat exchange of the quenching liquid and the quenching workpiece, and can enable the quenching workpiece to obtain a higher surface rigidity and a hardening layer.
Description
Technical field
The present invention relates to a kind of heat treatment system and method, particularly a kind of violent stirring quench cooled system and method.
Background technology
At present, in traditional quenching technique, do not add in the quenching tank and stir and the hardening liquid refrigerating unit,, flow and the quenching workpiece carries out heat exchange by hardening liquid self only by simple mechanical movements such as artificial, overhead traveling crane and air blowings.But in the quenching high-temperature zone, because the quenching workpiece surface can produce steam film, reduced the quench cooling rate of workpiece, made the quenching workpiece surface form soft spots, hardness non-uniform phenomenon, caused depth of hardening zone to reduce, mechanical property does not often reach technical requirements.If adopt brine quenching, can overcome above-mentioned deficiency, make the quenching workpiece obtain higher surface hardness and quench-hardened case.But salt solution meeting heavy corrosion quenching workpiece and equipment make quenching workpiece and equipment have certain potential safety hazard.
Summary of the invention
For addressing the above problem, the invention provides a kind of heat exchange of accelerating hardening liquid and quenching workpiece, make the quenching workpiece obtain the violent stirring quench cooled system and method for higher surface hardness and quench-hardened case.
Violent stirring quench cooled of the present invention system, comprise quenching tank, wherein: in described quenching tank, be provided with some guiding devices that distribute side by side, described guiding device is the U-shaped pipe that both ends open makes progress, one of them opening is aimed at the position at quenching workpiece place, be provided with the propeller blade of whipping appts in another opening, the motor of whipping appts is fixed on the top of described quenching tank.
Violent stirring quench cooled of the present invention system, wherein: be externally connected to the hardening liquid refrigerating unit at described quenching tank.
Violent stirring quench cooled of the present invention system, wherein: in described quenching tank, be provided with at least two guiding devices.
Violent stirring quench cooled of the present invention system, wherein: the power of motor of described whipping appts is 11-40KW, rotating speed is 460r/min.
Violent stirring quench cooled of the present invention system, wherein: described hardening liquid refrigerating unit is an air-cooler.
The method that the present invention uses violent stirring quench cooled system to quench, wherein: comprise the steps:
A, unlatching whipping appts stir the hardening liquid in the quenching tank;
B, with hanging device with in the described quenching workpiece immersion quenching bath;
C, the described hardening liquid refrigerating unit of unlatching make the cooling of hardening liquid fast cooling.
The present invention uses the method for violent stirring quench cooled system, wherein: among the step a hardening liquid at the flow velocity of the position at quenching workpiece place greater than 1.0m/s;
Violent stirring quench cooled of the present invention system, owing in described quenching tank, be provided with some guiding devices that distribute side by side, whipping appts can make the hardening liquid of quenching workpiece surface produce flow at high speed by guiding device, has therefore accelerated hardening liquid and the heat exchange of quenching workpiece, can make quencher's part obtain higher surface hardness and quench-hardened case.
Description of drawings
Fig. 1 is the front view of violent stirring quench cooled of the present invention system;
Fig. 2 is that sectional view is looked on the left side of Fig. 1;
Fig. 3 is the vertical view cutaway drawing of Fig. 1.
Embodiment
Below in conjunction with Figure of description violent stirring quench cooled system and method for the present invention is described further.
Referring to Fig. 1-Fig. 3, violent stirring quench cooled of the present invention system, in quenching tank 1, be provided with 4 guiding devices 3 that distribute side by side, the U-shaped pipe that guiding device 3 makes progress for both ends open, one of them opening is aimed at the position at quenching workpiece 5 places, the propeller blade 22 of whipping appts is arranged in another opening, propeller blade 22 diameters are 600mm, the motor 21 of whipping appts is fixed on the top of quenching tank 1, motor 21 power of whipping appts are 11KW (peak power 40KW), rotating speed is 460r/min, and actual weight of stirring hardening liquid can reach 30t.Guiding device 3 matches with whipping appts, and concentrated solid matter distributes, and the hardening liquid of high flow rate can lumped scour quenching workpiece 5 surfaces, make quenching workpiece 5 carry out heat exchange to greatest extent.Be externally connected to hardening liquid refrigerating unit 4 at quenching tank 1, hardening liquid refrigerating unit 4 is an air-cooler, is used for quickening the cooling of quenching tank 1 hardening liquid quickened the cooling to quenching workpiece 5 in the hardening liquid, makes the quench cooled effect stronger.
Hardening liquid can adopt clear water, salt solution, PAG (poly-alkylene ethylene glycol) aqueous solution and all kinds of liquid quenching media of wet goods.Because water medium does not have corrosive nature to quenching workpiece 5 and equipment, cost is low, therefore can be used as preferred hardening liquid.
The method that the present invention uses violent stirring quench cooled system to quench, step is as follows:
A, in quenching tank 1, add clear water, open whipping appts and stir hardening liquid in the quenching tank 1, make hardening liquid at the flow velocity of the position at quenching workpiece 5 places greater than 1.0m/s, can make the quenching intensity value of clear water bring up to H＞2.0 from H=1;
B, with hanging device with in the quenching workpiece 5 dip quench liquid;
C, unlatching hardening liquid refrigerating unit 4, make the cooling of hardening liquid fast cooling, enhancing is to the strong quench cooled of quenching workpiece 5, make quenching workpiece 5 quench cooled effects stronger, hardness is higher more even, because quenching workpiece 5 surfaces produce high stress, increase substantially the intensity and the fatigue strength of material, can reduce 5 distortion of quenching workpiece and cracking.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (7)
1. violent stirring quench cooled system, comprise quenching tank (1), it is characterized in that: in described quenching tank (1), be provided with some guiding devices (3) that distribute side by side, the U-shaped pipe that described guiding device (3) makes progress for both ends open, one of them opening is aimed at the position at quenching workpiece (5) place, the propeller blade of whipping appts (22) is arranged in another opening, and the motor of whipping appts (21) is fixed on the top of described quenching tank (1).
2. violent stirring quench cooled according to claim 1 system is characterized in that: be externally connected to hardening liquid refrigerating unit (4) at described quenching tank (1).
3. violent stirring quench cooled according to claim 2 system is characterized in that: be provided with two guiding devices (3) in described quenching tank (1) at least.
4. violent stirring quench cooled according to claim 3 system, it is characterized in that: the motor of described whipping appts (21) power is 11-40KW, and rotating speed is 460r/min.
5. violent stirring quench cooled according to claim 4 system, it is characterized in that: described hardening liquid refrigerating unit (4) is an air-cooler.
6. the method that the violent stirring quench cooled system that uses one of claim 2-5 quenches is characterized in that: comprise the steps:
A, unlatching whipping appts stir the hardening liquid in the quenching tank (1);
B, with hanging device with in described quenching workpiece (5) the dip quench liquid;
C, unlatching described hardening liquid refrigerating unit (4) make the cooling of hardening liquid fast cooling.
7. the method that use violent stirring quench cooled according to claim 6 system quenches is characterized in that: make among the step a hardening liquid at the flow velocity of the position at quenching workpiece (5) place greater than 1.0m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910165680A CN101629230A (en) | 2009-08-18 | 2009-08-18 | Violent stirring and quenching cooling system and quenching cooling method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910165680A CN101629230A (en) | 2009-08-18 | 2009-08-18 | Violent stirring and quenching cooling system and quenching cooling method |
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| CN101629230A true CN101629230A (en) | 2010-01-20 |
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| CN200910165680A Pending CN101629230A (en) | 2009-08-18 | 2009-08-18 | Violent stirring and quenching cooling system and quenching cooling method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061366A (en) * | 2011-01-19 | 2011-05-18 | 机械工业第一设计研究院 | Improved grinding ball quenching tank |
| CN103397149A (en) * | 2013-07-10 | 2013-11-20 | 上海交通大学 | Stirring method and device for medium in steel plate inclined quenching and cooling process |
| CN104846167A (en) * | 2015-06-09 | 2015-08-19 | 嘉善三星轴承有限公司 | Quenching furnace |
| CN106048165A (en) * | 2016-07-28 | 2016-10-26 | 河南省天利工业炉有限公司 | Comprehensive system device for quenching tank |
| CN108977634A (en) * | 2017-05-31 | 2018-12-11 | 湖南南方宇航高精传动有限公司 | A kind of compound quenching cooling and stirring device and quenching system |
| CN111440927A (en) * | 2020-03-03 | 2020-07-24 | 马鞍山固丞热处理科技有限责任公司 | Heat treatment equipment for machining and process thereof |
| CN116124830A (en) * | 2023-01-09 | 2023-05-16 | 季华实验室 | Cooling performance testing device for cooling medium |
-
2009
- 2009-08-18 CN CN200910165680A patent/CN101629230A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061366A (en) * | 2011-01-19 | 2011-05-18 | 机械工业第一设计研究院 | Improved grinding ball quenching tank |
| CN102061366B (en) * | 2011-01-19 | 2012-09-19 | 机械工业第一设计研究院 | Improved grinding ball quenching tank |
| CN103397149A (en) * | 2013-07-10 | 2013-11-20 | 上海交通大学 | Stirring method and device for medium in steel plate inclined quenching and cooling process |
| CN103397149B (en) * | 2013-07-10 | 2014-12-24 | 上海交通大学 | Stirring method and device for medium in steel plate inclined quenching and cooling process |
| CN104846167A (en) * | 2015-06-09 | 2015-08-19 | 嘉善三星轴承有限公司 | Quenching furnace |
| CN106048165A (en) * | 2016-07-28 | 2016-10-26 | 河南省天利工业炉有限公司 | Comprehensive system device for quenching tank |
| CN108977634A (en) * | 2017-05-31 | 2018-12-11 | 湖南南方宇航高精传动有限公司 | A kind of compound quenching cooling and stirring device and quenching system |
| CN111440927A (en) * | 2020-03-03 | 2020-07-24 | 马鞍山固丞热处理科技有限责任公司 | Heat treatment equipment for machining and process thereof |
| CN116124830A (en) * | 2023-01-09 | 2023-05-16 | 季华实验室 | Cooling performance testing device for cooling medium |
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Open date: 20100120 |