CN2542680Y - Heat treatment device - Google Patents
Heat treatment device Download PDFInfo
- Publication number
- CN2542680Y CN2542680Y CN 02227129 CN02227129U CN2542680Y CN 2542680 Y CN2542680 Y CN 2542680Y CN 02227129 CN02227129 CN 02227129 CN 02227129 U CN02227129 U CN 02227129U CN 2542680 Y CN2542680 Y CN 2542680Y
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- CN
- China
- Prior art keywords
- retort
- vacuum extractor
- furnace
- penetration enhancer
- thermal treatment
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Abstract
A heat treatment device comprises a furnace body of an electric heat treatment device, a furnace jar arranged in the furnace body, a furnace jar cover which can be airproofed and pressed on the furnace jar, an electric handspike device driving the furnace jar cover to run, a leakage agent accession device, a vacuumizing device, a controlling device, a vacuum link of the vacuumizing device and the furnace jar. The utility model is characterized in that an airproofed blower is arranged on the furnace jar cover and a leakage agent accession pipe is arranged above the blower impeller. Compared with the prior technique, the utility model has the advantages of good speed quality (black organization produced without oxygenation), little energy consumption and quick seep speed without pollution after the heat treatment.
Description
Technical field:
The utility model relates to a kind of thermal treatment unit.
Background technology:
Existing carburizing, carbonitriding are carried out under constant voltage, penetration enhancer in the burner hearth around the workpiece is a mobile, when fresh penetration enhancer enters burner hearth continuously, waste gas in the stove (aging atmosphere) continuously is discharged from outside the burner hearth, and take away a large amount of heat energy, workpiece is finished the carburizing or carbonitriding process under constant voltage and penetration enhancer flow condition.This kind technology is owing to will constantly add fresh penetration enhancer, constantly waste gas is drained simultaneously, to keep carbon potential or nitrogen gesture in the burner hearth to meet the requirements, and the useful penetration enhancer of part pyritous also will be drained inevitably in the exhaust gas discharging process, like this, not only wasted penetration enhancer, the more important thing is and to consume a large amount of energy, simultaneously, owing to remain malleation in the burner hearth, remain in the waste gas between slight gap between workpiece (aging atmosphere) and be not easy to flow and obtain replacing, make this part surface of workpiece can not obtain required infiltration layer, therefore, certain clearance must be kept between the workpiece in the burner hearth, output certainly will be influenced like this, in addition, blind hole is arranged on the workpiece, during micropore, because blind hole under constant voltage, waste gas in the micropore (aging atmosphere) can not be drained, and makes blind hole, micropore can not obtain required infiltration layer, as for the groove on the workpiece surface, if groove is very dark, then can not get required infiltration layer equally because of the waste gas in the groove can not obtain upgrading.
Summary of the invention:
Goal of the invention of the present utility model be to provide the workpiece quality after a kind of thermal treatment good (the black tissue that non-oxidation generates), less energy consumption, infiltration rate soon, the thermal treatment unit of pollution-free green.
Thermal treatment unit of the present utility model is to realize like this, comprise the body of heater that has electric heater unit, be arranged on the intravital retort of stove, sealable lid tightly the lid of the retort on retort, drive electric pushrod device, penetration enhancer adding set, vacuum extractor, the control device of the action of retort lid, vacuum extractor connects with valve tube on the retort, its special feature is that retort covers and is provided with seal fan that penetration enhancer adds pipe and is positioned at the draught fan impeller top.During use, the heat treated workpiece of needs put into begin then in the airtight thermal treatment retort workpiece in the thermal treatment retort is carried out the heat treated process of surface chemistry, under the control of control device, the thermo-chemical treatment process is such:
The first step: earlier retort is pumped into rough vacuum, then sucks in retort or injection penetration enhancer (gas or liquid), above-mentioned steps repeats repeatedly voluntarily so that rapidly with air in the retort or waste gas (aging atmosphere) emptying;
Second step: fresh penetration enhancer enters retort by under meter immediately quantitatively, directionally, rapidly by the hole that retort covers face under negative pressure, automatically be diffused in the retort everywhere, and make furnace gas carry out internal recycle by seal fan, fresh penetration enhancer enters behind the retort pressure in the retort and is elevated to normal pressure from negative pressure and is elevated to malleation again, keeps the atmosphere of certain hour in retort aging in malleation;
After the penetration enhancer atmosphere in the retort was aging, control device started by pre-set programs control vacuum pump, repeated first, second above-mentioned step then, obtained required infiltration layer until workpiece.
For the structure of simplified apparatus, reduce the volume of equipment, be provided with water jacket on retort top, the valve tube of bleeding that connects with the retort wall is arranged in the water jacket, and the valve tube of bleeding of drawing from water jacket links to each other with vacuum extractor.The effect one of water jacket is the waste gas in valve tube cooling, and two prevent the seal washer Yin Gaowen below the retort lid and softening transform makes its loss of seal performance.
Vacuum extractor adopts the water ring vacuum extractor, in the recirculated water of water ring vacuum extractor, put into sterilizing agents such as ferrous sulfate, chlorinated lime, carry out disinfection voluntarily behind the cyclic water tank of harmful furnace gas of extracting out in the retort, thereby satisfy environmental protection requirement by the water ring vacuum extractor.
The utility model compared with the prior art, owing to adopted to cover and be provided with seal fan at retort, penetration enhancer is added pipe be arranged on the draught fan impeller top, make and adopt new technology, new method becomes possibility, like this, can adopt the thermal treatment process of exhaust of rough vacuum transformation and malleation pressurization, (being no more than 10 minutes) at short notice just can be with air in the retort or waste gas (aging atmosphere) emptying, quantitatively add penetration enhancer then, carbon potential or nitrogen gesture in the heat treatment of workpieces process are met the requirements, make workpiece energy closely packed in retort, significantly improved the batch of retort, and infiltration rate is fast, aperture blind hole hole wall and very dark groove all can obtain satisfied infiltration layer, the penetration enhancer consumption is few, energy consumption is little, composition of fumes can adopt static control (quantitatively adding penetration enhancer after air or the waste gas emptying), easy to operate, and at an easy rate carbon potential is remained in the optimum regime, adopt the rough vacuum structure, make the cost of vacuum system be lower than high vacuum system widely, and reduced maintenance cost (can reach 80%) significantly, adopt the carbon potential or the nitrogen gesture of static control furnace gas, the cost of Controlling System and maintenance cost reduce (can reach 90%) significantly than the cost and the maintenance cost of kinetic control system, adopt water ring vacuum pump and in vacuum pump recirculated water, add sterilizing agent and can reach and to handle by the three wastes, the clean environment effect, therefore, the utlity model has workpiece quality good (the black tissue that non-oxidation generates) after the thermal treatment, less energy consumption, infiltration rate is fast, the advantage of pollution-free green.
Description of drawings:
Fig. 1 is the structural representation of thermal treatment unit of the present invention;
Fig. 2 is a control flow chart of the present invention.
Embodiment:
Now in conjunction with the accompanying drawings and embodiments the present invention is described in further detail:
Thermal treatment unit of the present utility model is to realize like this, comprise the body of heater 2 that has electric heater unit 1, be arranged on the retort 3 in the body of heater 2, sealable lid is the lid of the retort on retort 34 tightly, drive the electric pushrod device 5 of retort lid 4 actions, penetration enhancer adding set 6, vacuum extractor 7, control device 8, vacuum extractor 7 connects with valve tube 9 on the retort 3, its special feature is that retort lid 4 is provided with seal fan 11, penetration enhancer adds pipe 12 and is positioned at seal fan 11 impellers 13 tops, be provided with water jacket 14 on retort 3 tops, the valve tube 9 of bleeding that connects with retort 3 walls is arranged in the water jacket 14, and the valve tube 9 of bleeding of drawing from water jacket 14 links to each other with vacuum extractor 7.As shown in Figure 2, control device 8 is according to opportunity, time and the number of times of the work of the amount of the interpolation penetration enhancer of pressure in the retort 3 and pre-set programs control penetration enhancer adding set 6 and vacuum extractor 7, vacuum extractor 7 adopts the water ring vacuum extractor, puts into sterilizing agents such as ferrous sulfate, chlorinated lime in the recirculated water of water ring vacuum extractor.
Claims (3)
1, a kind of thermal treatment unit, comprise the body of heater that has electric heater unit, be arranged on the intravital retort of stove, sealable lid tightly the lid of the retort on retort, drive electric pushrod device, penetration enhancer adding set, vacuum extractor, the control device of the action of retort lid, vacuum extractor connects with valve tube on the retort, it is characterized in that retort covers is provided with blower fan, and penetration enhancer adds pipe and is positioned at the draught fan impeller top.
2, thermal treatment unit according to claim 1, its characteristic method are to be provided with water jacket on retort top, and the valve tube of bleeding that connects with the retort wall is arranged in the water jacket, and the valve tube of bleeding of drawing from water jacket links to each other with vacuum extractor.
3, thermal treatment unit according to claim 1 is characterized in that the water in the vacuum extractor employing water tank has the water ring vacuum extractor of sterilizing agent ferrous sulfate, chlorinated lime.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02227129 CN2542680Y (en) | 2002-04-26 | 2002-04-26 | Heat treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02227129 CN2542680Y (en) | 2002-04-26 | 2002-04-26 | Heat treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2542680Y true CN2542680Y (en) | 2003-04-02 |
Family
ID=33703982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02227129 Expired - Fee Related CN2542680Y (en) | 2002-04-26 | 2002-04-26 | Heat treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2542680Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244011A (en) * | 2018-09-05 | 2019-01-18 | 黄家仓 | A kind of semiconductor integrates disk production and uses annealing device |
| CN111424231A (en) * | 2020-05-28 | 2020-07-17 | 眉山市三泰铁路车辆配件有限公司 | Special gas nitrogen carbon oxygen QPQ multi-component composite co-permeation furnace for cast iron products |
| CN113604635A (en) * | 2021-07-27 | 2021-11-05 | 雷桂群 | Tempering equipment for solar heat collector manufacturing system and tempering method thereof |
-
2002
- 2002-04-26 CN CN 02227129 patent/CN2542680Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244011A (en) * | 2018-09-05 | 2019-01-18 | 黄家仓 | A kind of semiconductor integrates disk production and uses annealing device |
| CN109244011B (en) * | 2018-09-05 | 2021-07-23 | 黄家仓 | Heat treatment device for semiconductor integrated wafer production |
| CN111424231A (en) * | 2020-05-28 | 2020-07-17 | 眉山市三泰铁路车辆配件有限公司 | Special gas nitrogen carbon oxygen QPQ multi-component composite co-permeation furnace for cast iron products |
| CN113604635A (en) * | 2021-07-27 | 2021-11-05 | 雷桂群 | Tempering equipment for solar heat collector manufacturing system and tempering method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |