CN103937944B - A kind of vacuum annealing furnace - Google Patents
A kind of vacuum annealing furnace Download PDFInfo
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- CN103937944B CN103937944B CN201410186481.XA CN201410186481A CN103937944B CN 103937944 B CN103937944 B CN 103937944B CN 201410186481 A CN201410186481 A CN 201410186481A CN 103937944 B CN103937944 B CN 103937944B
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Abstract
A kind of vacuum annealing furnace, comprise flue, bell, between bell and flue, be provided with sealing ring, form vacuum lumen, the 1st heating element heater is arranged in furnace outer wall or inwall and bottom outside, the barrel-like structure that flue is opening upwards, this flue middle part is provided with the tubbiness inner bag that Open Side Down, between the peristome of this tubbiness inner bag and middle part, the end of flue, arc transition is connected, and forms annular blowing district, at the inner chamber of tubbiness inner bag, the 2nd heating element heater and temperature-adjusting device thereof is housed. This vacuum annealing furnace can heat annealing workpiece from the central region of the outer peripheral areas of workpiece and workpiece simultaneously, realizes two-way heat transfer, greatly shortens the heat transfer distances between annealing workpiece, and each whole workpiece is heated evenly, and has improved the quality of integrally annealed workpiece.
Description
Technical field
The present invention relates to annealing of metal materials equipment technical field, particularly relate to a kind of vacuum annealing furnace.
Background technology
Vacuum heat refers to the heat treatment process that workpiece heats, is incubated or lower the temperature under vacuum state. Vacuum heat can realize the Technology for Heating Processing that nearly all conventional heat treatment can relate to, but thermal treatment quality improves greatly. With conventional heat treatment phase ratio, vacuum heat can realize non-oxidation simultaneously, without decarburization, without carburizing, thereby reaches the effect that surface of the work light purifies.
The vacuum annealing furnace that traditional metal material heat treatment adopts has internal heat type and external-heat, and so-called internal heat type refers to that heating element heater is installed on to inboard wall of furnace directly to be heated workpiece, external-heat refers to that heating element heater is installed on to furnace outer wall to be heated workpiece across furnace wall. the heat transfer path of these two kinds of forms is all the mode of heating being conducted heat to center gradually by workpiece circumferential perimeter, when in order to improve output, when flue is done greatlyr, its heat transfer distances is also longer, such as: more than when flue intracavity diameter is above to φ 900mm greatly, its heat transfer distances reaches 400mm, if heat treatment of workpieces temperature is 800 DEG C, namely in the time that around outside, workpiece temperature reaches 800 DEG C, center workpiece temperature may only have 500 DEG C of left and right, in the time that center workpiece temperature is slowly raised to 800 DEG C, now around outside, workpiece temperature has been incubated more than two hours at 800 DEG C, periphery workpiece and center workpiece are the temperature retention time of 800 DEG C like this, the temperature difference is just made a world of difference, cause the thermal effectiveness of each workpiece reality also just to make a world of difference. but in actual applications, the thermal effectiveness that always requires each workpiece in same stove is consistent, existing vacuum annealing furnace is difficult to reach this effect.
Summary of the invention
The object of the present invention is to provide a kind of vacuum annealing furnace, it can heat annealing workpiece from the central region of the outer peripheral areas of workpiece and workpiece simultaneously, realize two-way heat transfer, greatly shorten the heat transfer distances between annealing workpiece, each whole workpiece is heated evenly, and has improved the quality of integrally annealed workpiece.
Technical solution proposed by the invention is such: a kind of vacuum annealing furnace, comprise flue 1, bell 2, heating element heater and temperature-adjusting device thereof, between bell 2 and flue 1, be provided with sealing ring, form vacuum lumen, be provided with on the outer wall or inwall and flue 1 bottom outside that the 1st heating element heater 31 is arranged on flue 1, the barrel-like structure that described flue 1 is opening upwards, the middle part of this flue 1 is provided with the tubbiness inner bag 4 that Open Side Down, between the middle part, the end of the peristome of tubbiness inner bag 4 and flue 1, arc transition is connected, form annular blowing district 5, be installed with the 2nd heating element heater 32 and temperature-adjusting device thereof at the inner chamber of tubbiness inner bag 4.
Tubbiness inner bag 4 is located at the central area of flue 1, and its axis overlaps with the axis of described flue 1. In the outside of flue 1 courage wall or inner side, flue 1 bottom outside subregion arranged the 1st heating element heater 31 and one group of thermocouple 6, with corresponding measuring and controlling temp device composition the 1st temp of heating element adjusting device, one group of thermocouple 6 is equipped with in outside or inner side at tubbiness inner bag 4 courage walls, with the 2nd heating element heater 32 and corresponding measuring and controlling temp device composition the 2nd temp of heating element adjusting device. Described the 1st heating element heater 31 and the 2nd heating element heater 32 all adopt heating wire.
Substantive features of the present invention are to set up heating chamber structure at flue middle part, make vacuum annealing furnace except from flue outside or inner side with and two heating surfaces of bottom, also increase by a heater at the central part of annealing workpiece simultaneously, make annealing workpiece be changed into also heat transfer (being two-way heat transfer) to the periphery of center in conducting heat toward center in periphery from traditional periphery toward the unidirectional heat transfer in center, heat transfer distances foreshortens to original 1/2nd or shorter greatly like this, effectively shorten the heat time that annealing workpiece reaches holding temperature, in having dwindled in blowing district, temperature difference between outer workpiece. because each workpiece heat transfer distances is short, be heated evenly, improved widely the annealing quality of whole furnaceman's part. simultaneously, this vacuum annealing furnace adopts the correspondence of multistage heating element and thermocouple to arrange, and has improved the temperature monitoring precision of annealing furnace inside, by independently controlling the heating element heater caloric value of adjusting correspondence position, workpiece in annealing furnace is heated evenly, thereby has ensured the annealing quality of workpiece. vacuum annealing furnace compact conformation of the present invention, it is rapid, even that heating is conducted heat, and temperature control precision is high, and workpiece annealing quality is good. be specially adapted to the annealing in process of silicon steel sheet core.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of vacuum annealing furnace of one embodiment of the invention.
Fig. 2 is that Fig. 1 removes the schematic top plan view after bell.
Fig. 3 is the STRUCTURE DECOMPOSITION figure of vacuum annealing furnace shown in Fig. 1.
In figure: 1, flue; 2, bell; 31, the 1st heating element heater; 32, the 2nd heating element heater; 4, tubbiness inner bag; 5, annular blowing region; 6, thermocouple.
Detailed description of the invention
By embodiment below, the present invention is further elaborated.
As Figure 1-3, a kind of vacuum annealing furnace is made up of flue 1, bell 2, the 1st heating element heater 31 and temperature-adjusting device thereof, the 2nd heating element heater 32 and temperature-adjusting device thereof and tubbiness inner bag 4. Between bell 2 and flue 1, be provided with sealing ring, make to form vacuum lumen in stove, its vacuum can reach 1～0.001pa. The 1st heating element heater 31 is arranged on the outer wall or inwall and flue 1 bottom outside of flue 1, the barrel-like structure that flue 1 is opening upwards, the middle part of this flue 1 is provided with the tubbiness inner bag 4 that Open Side Down, between the middle part, the end of the peristome of this tubbiness inner bag 4 and flue 1, arc transition is connected, form annular blowing district 5, be installed with the 2nd heating element heater 32 and temperature-adjusting device thereof at the inner chamber of tubbiness inner bag 4.
Tubbiness inner bag 4 is located at the central area of flue 1, and these tubbiness inner bag 4 axis overlap with the axis of flue 1. The outside of flue 1 courage wall or inner side, flue 1 bottom outside Fen Sange district have arranged the 1st heating element heater 31 and one group of thermocouple 6, with corresponding measuring and controlling temp device composition the 1st temp of heating element adjusting device. The 1st heating element heater 31 in the courage wall outside of flue 1 or inner side and flue 1 bottom outside arranged 3rd district, upper, middle and lower the 1st heating element heater 31, the height of the interior workpiece that fills of the height of middle district the 1st heating element heater 31 and stove matches. Flue 1 bottom outside is equipped with one section of the 1st heating element heater 31, merges into a district with the 1st heating element heater 31 of flue 1 inferior segment, shares one group of thermocouple 6. One group of thermocouple 6 is equipped with in the outside of tubbiness inner bag 4 courage walls or inner side, with the 2nd heating element heater 32 and corresponding measuring and controlling temp device composition the 2nd temp of heating element adjusting device. The 1st heating element heater 31 and the 2nd heating element heater 32 all adopt heating wire.
Described in the present embodiment, vacuum annealing furnace is of a size of flue 1 internal diameter and is about φ 900mm, and flue is about 1500mm deeply, and tubbiness inner bag 4 diameters are about φ 340mm; The 1st heating element heater 31-arrangement mode is flue 1 Fen Sange district, outside (flue 1 bottom and flue 1 lower bottom part are combined into inferior segment, flue 1 Wei Zhong district, middle part, flue 1 Wei Shang district, top), tubbiness inner bag 4 the 2nd heating element heater 32 that fills is provided with 3rd district, upper, middle and lower equally corresponding to flue 1, and flue 1, inner bag 4 Zhong Ge district heating powers divide Bouyei's flue size different and different (adopting evenly or uneven distribution). The independent temperature control in each district. The thermometric end of thermocouple 6 extend into heated workpiece wall.
Claims (5)
1. a vacuum annealing furnace, comprise flue (1), bell (2), heating element heater and temperature-adjusting device thereof, between bell (2) and flue (1), be provided with sealing ring, form vacuum lumen, be provided with on the outer wall or inwall and flue (1) bottom outside that the 1st heating element heater (31) is arranged on flue (1), it is characterized in that: the barrel-like structure that described flue (1) is opening upwards, the middle part of this flue (1) is provided with the tubbiness inner bag (4) that Open Side Down, between the middle part, the end of the peristome of described tubbiness inner bag (4) and described flue (1), arc transition is connected, form annular blowing district (5), be installed with the 2nd heating element heater (32) and temperature-adjusting device thereof at the inner chamber of described tubbiness inner bag (4).
2. vacuum annealing furnace according to claim 1, is characterized in that: the axis of described tubbiness inner bag (4) overlaps with the axis of described flue (1).
3. vacuum annealing furnace according to claim 1, it is characterized in that: the outside of described flue (1) courage wall or inner side, flue (1) bottom outside subregion have been arranged the 1st heating element heater (31) and one group of thermocouple (6), with corresponding measuring and controlling temp device composition the 1st temp of heating element adjusting device.
4. vacuum annealing furnace according to claim 1, it is characterized in that: one group of thermocouple (6) is equipped with in outside or the inner side of described tubbiness inner bag (4) courage wall, with the 2nd heating element heater (32) and corresponding measuring and controlling temp device composition the 2nd temp of heating element adjusting device.
5. vacuum annealing furnace according to claim 1, is characterized in that: described the 1st heating element heater (31) and the 2nd heating element heater (32) all adopt heating wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410186481.XA CN103937944B (en) | 2014-05-06 | 2014-05-06 | A kind of vacuum annealing furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410186481.XA CN103937944B (en) | 2014-05-06 | 2014-05-06 | A kind of vacuum annealing furnace |
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| CN103937944A CN103937944A (en) | 2014-07-23 |
| CN103937944B true CN103937944B (en) | 2016-05-18 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105969970A (en) * | 2016-07-07 | 2016-09-28 | 安庆市庆华精工机械有限责任公司 | Hanging-type heat treatment device of high temperature resistant bearing and treatment method |
| CN105925765A (en) * | 2016-07-07 | 2016-09-07 | 安庆市庆华精工机械有限责任公司 | Heat treatment device for high-temperature-resistant bearing |
| CN107267729A (en) * | 2017-05-04 | 2017-10-20 | 北京中科科美科技股份有限公司 | A kind of multistation vacuum drying oven is uniformly heated and temperature control system |
| CN109929971B (en) * | 2019-05-06 | 2024-05-03 | 鹰潭毅鹏智能科技有限公司 | Production line of micro-wire annealing tinning machine |
| CN111261474A (en) * | 2020-01-29 | 2020-06-09 | 北方夜视技术股份有限公司 | Exhaust apparatus for high temperature uniformity in microchannel plate type photomultiplier fabrication |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2299873Y (en) * | 1997-03-31 | 1998-12-09 | 沈阳友邦真空设备有限公司 | Large internally heated vacuum annealing furnace |
| JP2954607B2 (en) * | 1989-09-21 | 1999-09-27 | 日本真空技術株式会社 | In-line vacuum heat treatment furnace |
| CN2611387Y (en) * | 2003-04-09 | 2004-04-14 | 中国科学院金属研究所 | Vacuum annealer |
| CN202063970U (en) * | 2011-05-26 | 2011-12-07 | 湖南新新线缆有限公司 | Pot type heated air circulation annealing furnace |
| CN202152359U (en) * | 2011-06-11 | 2012-02-29 | 湘潭高耐合金制造有限公司 | Three-area three-control closed type vacuum rapid cooling annealing furnace for copper wire protected by inner-circulation gas |
| CN103045810A (en) * | 2012-12-29 | 2013-04-17 | 江苏丰东热技术股份有限公司 | Large-space hearth for heat-treatment vacuum furnace and temperature control method |
| CN203429209U (en) * | 2013-08-31 | 2014-02-12 | 江苏华飞不锈钢有限公司 | High-efficient annealing furnace |
| CN203833975U (en) * | 2014-05-06 | 2014-09-17 | 佛山市南海矽钢铁芯制造有限公司 | Vacuum annealing furnace |
-
2014
- 2014-05-06 CN CN201410186481.XA patent/CN103937944B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2954607B2 (en) * | 1989-09-21 | 1999-09-27 | 日本真空技術株式会社 | In-line vacuum heat treatment furnace |
| CN2299873Y (en) * | 1997-03-31 | 1998-12-09 | 沈阳友邦真空设备有限公司 | Large internally heated vacuum annealing furnace |
| CN2611387Y (en) * | 2003-04-09 | 2004-04-14 | 中国科学院金属研究所 | Vacuum annealer |
| CN202063970U (en) * | 2011-05-26 | 2011-12-07 | 湖南新新线缆有限公司 | Pot type heated air circulation annealing furnace |
| CN202152359U (en) * | 2011-06-11 | 2012-02-29 | 湘潭高耐合金制造有限公司 | Three-area three-control closed type vacuum rapid cooling annealing furnace for copper wire protected by inner-circulation gas |
| CN103045810A (en) * | 2012-12-29 | 2013-04-17 | 江苏丰东热技术股份有限公司 | Large-space hearth for heat-treatment vacuum furnace and temperature control method |
| CN203429209U (en) * | 2013-08-31 | 2014-02-12 | 江苏华飞不锈钢有限公司 | High-efficient annealing furnace |
| CN203833975U (en) * | 2014-05-06 | 2014-09-17 | 佛山市南海矽钢铁芯制造有限公司 | Vacuum annealing furnace |
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