CN2258876Y - Medium frequency induction continuous heating furnace for step shafts - Google Patents
Medium frequency induction continuous heating furnace for step shafts Download PDFInfo
- Publication number
- CN2258876Y CN2258876Y CN 95226471 CN95226471U CN2258876Y CN 2258876 Y CN2258876 Y CN 2258876Y CN 95226471 CN95226471 CN 95226471 CN 95226471 U CN95226471 U CN 95226471U CN 2258876 Y CN2258876 Y CN 2258876Y
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- induction heating
- medium frequency
- furnace
- district
- frequency induction
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Abstract
The utility model discloses a medium frequency induction continuous heating furnace suitable for parts in staircase-shaped shaft category. The induction heating furnace is provided with an inducting coil, besides, adds a radiant tube, causing the furnace body to be divided into two sections of induction heating and radiation heating, so that solves the problem that after rough process, the temperature of shaft parts is not uniform in the induction heating. The utility model causes the realization that medium frequency induction heating technique is used for shaft part quality modification and normalizing heat treatment aspects, and finally reaches the purposes of high quality, high efficiency and energy conservation.
Description
The utility model belongs to induction heating and thermal treatment field, is the induction body of heater that a kind of induction heating combines with radiation heating.
At present, the axial workpiece on China's automobile, tractor, the agricultural transportation vehicle is selected the steel grade of 45 steel, two trades mark of 40Cr steel basically for use.Operational path be blanking-→ rough turn-→ modifier treatment-→ precision work.For many years, the technology that modified thermal treatment is adopted is: with chamber type electric resistance furnace heating, Heating temperature 820-860 ℃, when being incubated, temperature uniformity diathermanous to workpiece under this temperature, carry out the water medium quench cooled, carry out high tempering subsequently.Mode of operation with chamber type electric resistance furnace is a periodic, and be 2-3 hour heating period.This traditional mode of operation, in production in enormous quantities, problem such as exist a part quality instability, efficient is lower, energy consumption is bigger.Along with the development of silicon controlled rectifier medium frequency converter, its Application Areas is constantly being widened.The existing application aspect equal diameter axle spare thermal treatment heating, but can't guarantee its temperature uniformity for step shaft different diameter place, thus its application is restricted.
The purpose of this utility model is to provide a kind of continous way Medium Frequency Induction Heating Furnace that the step shaft part is modified or normalizing thermal treatment is used that is suitable for, and with alternative existing weaponry and equipment, thereby improves the modified and normalizing process of thermal treatment level of axle part.
The utility model adopts following technical scheme to realize above-mentioned purpose: based on the continous way induction heater, set up radiator tube at its discharge end, thereby increased the radiation heating district, this district and level and smooth corresponding joining of induction heating district, described radiator tube is fixed on the furnace lining inwall of radiation zone, the heating of this radiator tube is finished by its peripheral inductor block is set, and is positioned at the inductor block of radiation zone furnace lining periphery and the inductor block in induction heating district and is connected in series, and provide energy by same intermediate frequency power supply.
The temperature of radiator tube depends on that the radiation heating section takies the design that how much reaches radiator tube of power.
The radiator tube material is a ferrous metal in the continous way Medium Frequency Induction Heating Furnace described in the utility model, radiation zone.
The utility model is applicable to is with the thermal treatment of step axle spare to heat continuously after roughing.Alternative original chamber type electric resistance furnace.Compare with chamber type electric resistance furnace, modified quenching hardness first-time qualification rate can be brought up to more than 90% from original 60%, and accomplishing does not substantially have reprocessed products.The alignment rate of major axis spare reduces by 40%.Saves energy 30%, and significantly improve work efficiency, be convenient to realize automatic production.
Below in conjunction with the description of drawings specific embodiment;
Fig. 1 is the structure longitudinal sectional drawing of step shaft Medium frequency induction continuous furnace.
Fig. 2 is the fundamental diagram of step shaft Medium frequency induction continuous furnace.
1 is induction furnace thermal insulation layer and flame retardant coating in Fig. 1; 2 is inductor block; 3 is furnace lining; 4 is radiator tube.
In Fig. 2,5 is the silicon controlled rectifier medium frequency converter, and it is 50 meters conspicuous alternating-current frequency conversions of three-phase single-phase medium frequency alternating current.Building-out capacitor 7 is formed the intermediate frequency load with induction furnace 8.Power in the load is regulated by power regulator 6 as required.
In Fig. 1, induction heating district I and radiation heating district II form the body of heater of step shaft Medium frequency induction continuous furnace jointly, the level and smooth butt joint in two districts, the induction heater 2 that is arranged in insulation, flame retardant coating 1 in the induction heating district is serially connected in outside the furnace lining 3, and connect, and provide energy by same intermediate frequency power supply with the inductor block 2 of radiation zone II; In radiation zone II, be fixed with the radiator tube of making by ferrous metal 4 on the inwall of its furnace lining 3, this radiator tube 4 is by being arranged on the outer inductor block 3 of furnace lining to its heating.Work is sent in the stove with step-by-step system one by one along the direction of arrow shown in Figure 1 during use.Workpiece is elevated to the temperature of process stipulation in I district skin temperature, enters in the II district, carries out heat exchange at this interval workpiece and radiator tube, and workpiece temperature is subjected to the radiator tube Temperature Influence, and stair-stepping axle part temperature and radiator tube everywhere reaches unanimity.The final uniform workpiece of temperature that obtains.
Claims (2)
1, a kind of induction heating and radiation heating bonded step shaft Medium frequency induction continuous furnace, its body of heater comprises an induction heating district, it is characterized in that: described body of heater also is included in the radiation heating district that radiator tube that the discharge end in induction heating district sets up produces, smoothly dock with the induction heating district in this district, described radiator tube is fixed on the furnace lining inwall of radiation zone, the inductor block that is positioned at radiation zone furnace lining periphery is connected in series with the inductor block in induction heating district, and provides energy by same intermediate frequency power supply.
2, continous way Medium Frequency Induction Heating Furnace as claimed in claim 1 is characterized in that the radiator tube in the described radiation zone is a ferrous metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226471 CN2258876Y (en) | 1995-11-15 | 1995-11-15 | Medium frequency induction continuous heating furnace for step shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226471 CN2258876Y (en) | 1995-11-15 | 1995-11-15 | Medium frequency induction continuous heating furnace for step shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2258876Y true CN2258876Y (en) | 1997-08-06 |
Family
ID=33872623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95226471 Expired - Fee Related CN2258876Y (en) | 1995-11-15 | 1995-11-15 | Medium frequency induction continuous heating furnace for step shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2258876Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422353C (en) * | 2007-06-28 | 2008-10-01 | 朱兴发 | Medium frequency induction heating treatment method for steel pipe, petroleum well pipe and drill pipe |
| CN102010971A (en) * | 2010-12-07 | 2011-04-13 | 苏州中门子科技有限公司 | All-hydrogen thermal treatment furnace of nuclear safety pipe |
| CN105021053A (en) * | 2015-08-08 | 2015-11-04 | 西安东威电炉设备有限公司 | Bearing steel medium-frequency induction heating surface-crack-free device |
| CN110819786A (en) * | 2019-11-20 | 2020-02-21 | 宿州市祁南工贸有限责任公司 | Machining process suitable for sun wheel bearing of large speed reducer |
| CN118600191A (en) * | 2024-08-08 | 2024-09-06 | 山西天宝集团有限公司 | Annealing device for high-strength alloy steel shaft forge piece and using method of annealing device |
-
1995
- 1995-11-15 CN CN 95226471 patent/CN2258876Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422353C (en) * | 2007-06-28 | 2008-10-01 | 朱兴发 | Medium frequency induction heating treatment method for steel pipe, petroleum well pipe and drill pipe |
| CN102010971A (en) * | 2010-12-07 | 2011-04-13 | 苏州中门子科技有限公司 | All-hydrogen thermal treatment furnace of nuclear safety pipe |
| CN105021053A (en) * | 2015-08-08 | 2015-11-04 | 西安东威电炉设备有限公司 | Bearing steel medium-frequency induction heating surface-crack-free device |
| CN110819786A (en) * | 2019-11-20 | 2020-02-21 | 宿州市祁南工贸有限责任公司 | Machining process suitable for sun wheel bearing of large speed reducer |
| CN118600191A (en) * | 2024-08-08 | 2024-09-06 | 山西天宝集团有限公司 | Annealing device for high-strength alloy steel shaft forge piece and using method of annealing device |
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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 |