CN2832826Y - Impulsive discharge catalyzed chemical heat treatment device - Google Patents
Impulsive discharge catalyzed chemical heat treatment device Download PDFInfo
- Publication number
- CN2832826Y CN2832826Y CN 200520092573 CN200520092573U CN2832826Y CN 2832826 Y CN2832826 Y CN 2832826Y CN 200520092573 CN200520092573 CN 200520092573 CN 200520092573 U CN200520092573 U CN 200520092573U CN 2832826 Y CN2832826 Y CN 2832826Y
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- furnace
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- thermoscreen
- catalyzed
- heat shield
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Abstract
The utility model relates to an impulsive discharge catalyzed chemical heat treatment device, which composed of a furnace base, a furnace barrel, an electric control cabinet, a catalyzed discharging electrode (6), a catalyzed discharging electrode (15) and a pulse power supply. The utility model also comprises a uniform furnace gas circulation system, a heat insulating layer structure and a built-in AC heater, wherein the uniform furnace gas circulation system is composed of a vacuum electric machine, a fan, a heat shield (5) and a heat shield (12). The vacuum electric machine is connected with the fan; the heat shield (5) and the heat shield (12) are respectively arranged at the inner wall of the furnace barrel and the furnace base; the built-in AC heater is arranged at the inside of each heat shield of the furnace barrel; the catalyzed discharging electrode (6) and the catalyzed discharging electrode (15) are arranged at the inside of the built-in AC heater. The furnace barrel and the furnace base can use a double-layer wall structure. The lower end in the furnace is provided with an exhaust annular pipe which is connected with a vacuum pump, and an air supply system is connected with an air supply annular pipe. The utility model has the advantages of high leakage speed, accurate and uniform treatment temperature, high heat efficiency, and easy anti-seepage operation. The treated work pieces in a vacuum can not be oxidized, and the carbon in the work pieces can not be removed. Moreover, the surface of each work piece has good quality after treatment.
Description
Technical field
The present invention relates to the thermo-chemical treatment technical field, particularly a kind of impulsive discharge catalyzed chemical heat treatment apparatus.
Background technology
Vacuum ion-nitriding is a kind of wear-resistant, corrosion-resistant, antifatigue, resistance to high temperature oxidation and technology in raising workpiece life-span that can improve the metallic surface.Be used to finish the specific equipment of this workpiece surface reinforcing process, be referred to as ion nitriding furnace.
Present ion-nitriding furnace mainly is to be made of bell, round kiln tube, plate furnace base, cathode electricity transmission device and temperature thermocouple, vacuum system, airing system and power supply system by furnace base.Though highly versatile, but still exist a lot of weak points: 1. vacuum furnace body all adopts the recirculated water cooling, and water coolant is taken away a large amount of heats, and energy consumption is very big.2. because the water coolant of furnace wall is taken away a large amount of heats, make that the workpiece heat-up rate is slow.When 3. handling elongated or complex-shaped workpieces, glow discharge intensity difference on the workpiece per surface area, temperature homogeneity is very poor.4. because the working parts strap cathode potential makes normal generation of workpiece surface beat the arc phenomenon, influence the surface quality of workpiece.5. gas skewness in stove.
Summary of the invention
In order to solve the deficiency on the prior art, the utility model proposes a kind of impulsive discharge catalyzed chemical heat treatment apparatus, this equipment is saved the energy, workpiece temperature good uniformity, nitriding gas is evenly distributed in equipment and permeating speed is fast, ooze maintenance conveniently.
The technical solution of the utility model is, a kind of impulsive discharge catalyzed chemical heat treatment apparatus, by furnace base 11, stove tube 17, electrical control cubicles (7), catalysis discharge electrode 6, the catalysis discharge electrode 15 and the pulse power are formed, it is characterized in that, this equipment also comprises the even recycle system of furnace gas, insulating layer structure and the built-in well heater 14 that exchanges, the even recycle system of furnace gas is by vacuum motor 1, fan 2, thermoscreen 5 and thermoscreen 12 constitute, vacuum motor 1 is connected with fan 2, thermoscreen 5 and thermoscreen 12 are located at the inwall of stove tube 17 and furnace base 11 respectively, built-in interchange well heater 14 is arranged on the inboard of the thermoscreen 5 of stove tube 17, catalysis discharge electrode 6 places built-in well heater 14 inboards that exchange with catalysis discharge electrode 15, promptly near burner hearth one side, stove tube 17 and furnace base 11 all adopt double-wall structure, in the double walled interlayer, fill with novel heat-insulation filamentary material 4 respectively, insulating fibre material 10, lower end in the stove is provided with exhaust endless tube 9, be connected with vacuum pump 8, airing system 13 is connected with air feed endless tube 3.Furnace base 11 is a camber.
The beneficial effects of the utility model are, the impulsive discharge catalyzed chemical heat treatment apparatus has that infiltration rate is fast, treatment temp is accurately even, the thermo-efficiency height, and save energy, antiseepage is easy.Workpiece surface quality after the not oxidation of workpiece of Chu Liing in a vacuum, not decarburization and the processing is good.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, vacuum motor, 2, fan, 3, the air feed endless tube, 4, insulating fibre material, 5, thermoscreen, 6, the catalysis discharge electrode, 7, electrical control cubicles, 8, vacuum pump, 9, the exhaust endless tube, 10, insulating fibre material, 11, furnace base, 12, thermoscreen, 13, airing system, 14, built-in interchange well heater, 15, the catalysis discharge electrode, 16, insulating fibre material, 17, the stove tube.
Embodiment
Workpiece is placed in the stove, built-in interchange well heater 14 direct heating workpiece are to nitriding temperature, and pulse power output voltage is the 0-8000 volt, act between interior catalysis discharge electrode 6 of stove and the catalysis discharge electrode 15, cause and keep strong gas ionization discharge, furnace pressure is 100-5 * 10
4Pa, the violent ionic discharge of nitrogenous gas produces a large amount of active nitrogens and infiltrates atom, infiltrates workpiece at a high speed, and workpiece does not link to each other with electrode, and the not charged position of workpiece makes workpiece not be subjected to ion bombardment effects, does not produce and beats the arc phenomenon; Nitriding gas enters in the stove by air feed endless tube 3, start external vacuum motor 1, nitriding gas leads through thermoscreen 5 and thermoscreen 12 under the effect of fan 2, all evenly circulate from top to bottom, center to the edge of body of heater, again by outside exhaust endless tube 9 device for transferring, new nitriding gas constantly enters, and old gas is constantly discharged, and nitriding gas evenly passes through the various piece of workpiece.
Claims (2)
1, a kind of impulsive discharge catalyzed chemical heat treatment apparatus, by furnace base (11), stove tube (17), electrical control cubicles (7), catalysis discharge electrode (6), the catalysis discharge electrode (15) and the pulse power are formed, it is characterized in that, this equipment also comprises the even recycle system of furnace gas, insulating layer structure and the built-in well heater (14) that exchanges, the even recycle system of furnace gas is by vacuum motor (1), fan (2), thermoscreen (5) and thermoscreen (12) constitute, vacuum motor (1) is connected with fan (2), thermoscreen (5) and thermoscreen (12) are located at the inwall of stove tube (17) and furnace base (11) respectively, built-in interchange well heater (14) is arranged on the inboard of the thermoscreen (5) of stove tube (17), catalysis discharge electrode (6) places built-in well heater (14) inboard that exchanges with catalysis discharge electrode (15), promptly near burner hearth one side, stove tube (17) and furnace base (11) all adopt double-wall structure, in the double walled interlayer, fill with novel heat-insulation filamentary material (4) respectively, insulating fibre material (10), lower end in the stove is provided with exhaust endless tube (9), be connected with vacuum pump (8), airing system (13) is connected with air feed endless tube (3).
2, a kind of impulsive discharge catalyzed chemical heat treatment apparatus according to claim 1 is characterized in that, described furnace base (11) is a camber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520092573 CN2832826Y (en) | 2005-09-17 | 2005-09-17 | Impulsive discharge catalyzed chemical heat treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520092573 CN2832826Y (en) | 2005-09-17 | 2005-09-17 | Impulsive discharge catalyzed chemical heat treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2832826Y true CN2832826Y (en) | 2006-11-01 |
Family
ID=37197139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520092573 Expired - Fee Related CN2832826Y (en) | 2005-09-17 | 2005-09-17 | Impulsive discharge catalyzed chemical heat treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2832826Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870983A (en) * | 2018-07-11 | 2018-11-23 | 昆山金美创机械有限公司 | A kind of vacuum drying oven of optional intake method |
| CN111850457A (en) * | 2020-07-29 | 2020-10-30 | 扬州大学 | Controllable surface nitriding device and using method thereof |
-
2005
- 2005-09-17 CN CN 200520092573 patent/CN2832826Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870983A (en) * | 2018-07-11 | 2018-11-23 | 昆山金美创机械有限公司 | A kind of vacuum drying oven of optional intake method |
| CN111850457A (en) * | 2020-07-29 | 2020-10-30 | 扬州大学 | Controllable surface nitriding device and using 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 |