CN103591793A - Vacuum sintering furnace - Google Patents
Vacuum sintering furnace Download PDFInfo
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- CN103591793A CN103591793A CN201310533845.2A CN201310533845A CN103591793A CN 103591793 A CN103591793 A CN 103591793A CN 201310533845 A CN201310533845 A CN 201310533845A CN 103591793 A CN103591793 A CN 103591793A
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- protection screen
- support column
- heat
- vacuum sintering
- sintering furnace
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Abstract
The invention discloses a vacuum sintering furnace comprising a furnace body, a furnace cover and a heating chamber arranged in the furnace body. An upper heat preservation screen, side heat preservation screens and a lower heat preservation screen are arranged on the periphery of the heating chamber. A glue discharge pipeline is arranged at the upper portion of the furnace body. Supporting columns are arranged at the lower portion of the furnace body, penetrate through the lower heat preservation screen, are arranged in the heating chamber and are used for bearing a machined workpiece. The glue discharge pipeline passes through the upper heat preservation screen and is directly inserted into the heating chamber. Heat insulation materials are lined to the inner wall and the outer wall of the part, arranged in the upper heat preservation screen and the heating chamber, of the glue discharge pipeline. The supporting columns penetrating through the lower heat preservation screen comprise an upper supporting column and a lower supporting column, wherein heat insulation materials are also arranged between the upper supporting column and the lower supporting column. The upper supporting column is hollow. A supporting steel board is arranged below the supporting columns and provided with a notch. By means of the vacuum sintering furnace, heat loss of the heating chamber is reduced, the uniformity of the indoor temperature is improved, and meanwhile the bearing capacity of the supporting columns and the supporting steel board is improved.
Description
Technical field
The present invention relates to high-temperature vacuum field, be specifically related to a kind of vacuum sintering furnace.
Background technology
Vacuum sintering furnace is a kind of advanced person's Equipment for Heating Processing, can carry out metal material and workpiece heating in vacuum, quenching, tempering, annealing, carburizing, nitriding, add the various heat treatment such as quench of calming the anger, vacuum heat process can make processed material and workpiece performance significantly improve, and material is fully used.And a real qualified vacuum drying oven is mainly with working vacuum degree, final vacuum, speed of exhaust ratio, furnace chamber leak rate, heating power, temperature homogeneity is as basic reference, wherein temperature uniformity is the important indicator whether vacuum drying oven is qualified, mainly can in the temperature range of regulation, be heated in order to ensure pending part or raw material, make its microstructure as much as possible in same stage, and prevent from causing the problems such as part deformation because non-uniform temperature causes material differences in expansion, all there is heat loss in the binder removal pipeline that the support column arranging due to existing vacuum high-temperature furnace heating chamber bottom and burner hearth connect, the problem that heat insulation effect is poor, thereby cause heating clamber local temperature inhomogeneous, then affect the heat stability of vacuum drying oven heating clamber, reduced the quality of production of processing parts in stove.
Summary of the invention
The object of the invention is to overcome above shortcoming, a kind of vacuum sintering furnace be provided.
Technical scheme of the present invention is:
A kind of vacuum sintering furnace, comprise body of heater, bell and be arranged on the heating clamber in body of heater, described heating clamber periphery is provided with heat protection screen, side heat protection screen, lower heat protection screen, described upper of furnace body is provided with binder removal pipeline, bottom is provided with to be run through described lower heat protection screen and is placed in heating clamber for carrying the support column of processing work, described binder removal device for cleaning pipeline is crossed heat protection screen and is directly inserted in described heating clamber, the binder removal inner and outer walls of pipeline being arranged in described upper heat protection screen and heating clamber is all lined with heat-barrier material, the described support column that runs through lower heat protection screen comprises upper support column, lower support post, described upper support column, between lower support post, be also provided with heat-barrier material, and described upper support column adopts hollow setting, described support column below is also provided with a supporting steel plate, described supporting steel plate offers a breach.
Further, being arranged on the heat-barrier material that the binder removal inner and outer walls of pipeline in described upper heat protection screen and heating clamber is lined with is insulated porcelain sleeve.
Further, the heat-barrier material arranging between described upper and lower support column is ceramic blanket.
Further, described side heat protection screen periphery is wound with many group coils, and described every group of coil is connected in series, and described coil is all wrapped in mica tape.
Further, described body of heater, bell are sandwich, and described interlayer is hollow.
Further, on described bell, be provided with pluggable temperature measuring equipment.
Further, described pluggable temperature measuring equipment comprises the cylinder that inserts the thermocouple in body of heater and be arranged on thermocouple upper end.
Further, on described bell, offer thermometer hole, be fixedly installed an adapter in described thermometer hole, described thermocouple is arranged in described adapter by sheath, and described cylinder is fixedly connected with described adapter.
Compared with prior art, beneficial effect of the present invention is as follows:
1, reduce the heat loss of heating clamber, improved the uniformity of indoor temperature.Vacuum sintering furnace provided by the invention, comprise body of heater, bell and be arranged on the heating clamber in body of heater, its heating clamber periphery is provided with heat protection screen, side heat protection screen, lower heat protection screen, in order to reduce the heat energy dissipation of heating clamber, the present invention takes measures from the following aspects, reduced the heat leakage at heating clamber edge, improved the heat stability of heating clamber, strengthened stove inner support carrying capacity, 1, the present invention is lined with one deck heat-barrier material by the binder removal inner and outer walls of pipeline that runs through upper heat protection screen and be directly inserted in heating clamber, this heat-barrier material has reduced the indoor heat that binder removal pipeline is taken away, thereby the temperature that makes binder removal Near Pipelines is tending towards heating clamber uniform temperature scope, 2, the present invention is arranged to upper support column, lower support post by the support column that runs through lower heat protection screen, its upper support column adopts hollow setting, and between upper and lower support column, be also provided with heat-barrier material, thereby both reduced the heat transfer area of support column, also the heat that has interrupted heating clamber is sent to lower support post and dispels the heat, the heat that has reduced lower support post, has improved its bearing capacity, 3, on the supporting steel plate of support column below, have a breach, avoided electromagnetic induction to make electric current in gripper shoe form large closed loop, reduced caloric value, reduced support column, gripper shoe temperature, improved both common bearing capacitys.
2, structural design of the present invention is simple, and heat insulating effect is good, workable, can aspect the temperature uniform Design of vacuum high temperature furnace, be applied widely.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the present embodiment.
Fig. 2 is the structural representation of supporting steel plate in the present embodiment;
Fig. 3 is the structural scheme of mechanism of temperature measuring equipment in the present embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The specific embodiment:
In conjunction with Fig. 1, a kind of vacuum sintering furnace shown in Fig. 2, comprise body of heater 1, bell 2 and be arranged on the heating clamber 3 in body of heater 1, its heating clamber 3 peripheries are provided with heat protection screen 4, side heat protection screen 5, lower heat protection screen 6, its body of heater 1 top is provided with binder removal pipeline 7, bottom is provided with to be run through lower heat protection screen 6 and is placed in heating clamber 3 for carrying the support column of processing work, its binder removal pipeline 7 directly inserts in heating clamber 3 by upper heat protection screen 4, binder removal pipeline 7 inside and outside walls that are arranged in heat protection screen 4 and heating clamber 3 are all lined with heat-barrier material 11, its support column that runs through lower heat protection screen 6 comprises upper support column 9, lower support post 10, its upper support column 9, between lower support post 10, be also provided with heat-barrier material 11, and upper support column 9 adopts hollow setting, its support column below is also provided with a supporting steel plate 12, its supporting steel plate 12 offers a breach 13.
In the present embodiment, be arranged on the heat-barrier material 11 being lined with inside and outside the binder removal pipeline 7 in heat protection screen 4 and heating clamber 3 and preferably adopt insulated porcelain sleeve, it has reduced the indoor heat that binder removal system is taken away, thereby near temperature binder removal pipeline 7 will be tending towards within the scope of heating clamber 3 uniform temperatures, and its binder removal pipeline 7 is provided with sealing ring with heating clamber 3 contact-making surfaces; In addition, the present embodiment is arranged to upper and lower support column 9,10 by support column, its upper support column 9 adopts hollow design, and between upper and lower support column 9,10, be provided with ceramic blanket, reduced the heat transfer area of support column, the heat that has also interrupted heating clamber 3 is sent to lower support post 10 and dispels the heat, reduced the heat of lower support post, improved its bearing capacity, for better fixedly upper support column, its lower support post 10 upper surfaces are designed to groove shape.
Be illustrated in figure 2 the structural representation of supporting steel plate in the present embodiment, on its supporting steel plate 12, have a breach 13, for avoiding electromagnetic induction to form large current closed-loop on supporting steel plate 12, reduced caloric value, support column, supporting steel plate 12 temperature have been reduced, the compression strength while having improved both duties.
The advantages such as in the present embodiment, heating clamber 5 peripheries are wound with many group coils, and its every group of coil is connected in series, and described coil is all wrapped in mica tape, adopts mica tape setting, compared to existing castable ceramic insulation, have long service life, with low cost, easy to maintenance.
In the present embodiment, body of heater 1, bell 2 are sandwich, and its interlayer is logical circulation water cooling structure in being.
In order to measure comparatively easily the high-temperature temperature in vacuum sintering furnace, on its bell 2, be provided with dismountable temperature measuring equipment, shown in Fig. 3, this temperature measuring equipment comprises the thermocouple 8 inserting in body of heater 1 and the cylinder 14 that is arranged on thermocouple 8 upper ends, on its bell 2, offer thermometer hole, in its thermometer hole, be fixedly installed an adapter 16, its thermocouple 8 is arranged on and is taken in 16 by sheath 15, and its cylinder 14 is fixedly connected with adapter 16.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing, be equal to replacement etc., within all should being included in protection scope of the present invention in protection scope of the present invention.
Claims (8)
1. a vacuum sintering furnace, comprise body of heater, bell and be arranged on the heating clamber in body of heater, described heating clamber periphery is provided with heat protection screen, side heat protection screen, lower heat protection screen, described upper of furnace body is provided with binder removal pipeline, bottom is provided with to be run through described lower heat protection screen and is placed in heating clamber for carrying the support column of processing work, it is characterized in that, described binder removal device for cleaning pipeline is crossed heat protection screen and is directly inserted in described heating clamber, the binder removal inner and outer walls of pipeline being arranged in described upper heat protection screen and heating clamber is all lined with heat-barrier material, the described support column that runs through lower heat protection screen comprises upper support column, lower support post, described upper support column, between lower support post, be also provided with heat-barrier material, and described upper support column adopts hollow setting, described support column below is also provided with a supporting steel plate, described supporting steel plate offers a breach.
2. a kind of vacuum sintering furnace according to claim 1, is characterized in that, being arranged on the heat-barrier material that the binder removal inner and outer walls of pipeline in described upper heat protection screen and heating clamber is lined with is insulated porcelain sleeve.
3. a kind of vacuum sintering furnace according to claim 1, is characterized in that, the heat-barrier material arranging between described upper and lower support column is ceramic blanket.
4. a kind of vacuum sintering furnace according to claim 1, is characterized in that, described side heat protection screen periphery is wound with many group coils, and described every group of coil is connected in series, and described coil is all wrapped in mica tape.
5. a kind of vacuum sintering furnace according to claim 1, is characterized in that, described body of heater, bell are sandwich, and described interlayer is logical circulation water cooling structure in being.
6. according to a kind of vacuum sintering furnace described in any one in claim 1-5, it is characterized in that, on described bell, be provided with pluggable temperature measuring equipment.
7. a kind of vacuum sintering furnace according to claim 6, is characterized in that, described pluggable temperature measuring equipment comprises the cylinder that inserts the thermocouple in body of heater and be arranged on thermocouple upper end.
8. a kind of vacuum sintering furnace according to claim 7, it is characterized in that, on described bell, offer thermometer hole, in described thermometer hole, be fixedly installed an adapter, described thermocouple is arranged in described adapter by sheath, and described cylinder is fixedly connected with described adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533845.2A CN103591793B (en) | 2013-11-01 | 2013-11-01 | A kind of vacuum sintering furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533845.2A CN103591793B (en) | 2013-11-01 | 2013-11-01 | A kind of vacuum sintering furnace |
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| CN103591793A true CN103591793A (en) | 2014-02-19 |
| CN103591793B CN103591793B (en) | 2015-11-25 |
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| CN201310533845.2A Active CN103591793B (en) | 2013-11-01 | 2013-11-01 | A kind of vacuum sintering furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515395A (en) * | 2014-12-25 | 2015-04-15 | 湖南顶立科技有限公司 | High-temperature furnace bed supporting device |
| CN106017071A (en) * | 2016-05-31 | 2016-10-12 | 成都西沃克真空科技有限公司 | Vacuum furnace |
| CN113959222A (en) * | 2021-11-26 | 2022-01-21 | 中国原子能科学研究院 | High temperature furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101382388A (en) * | 2008-09-17 | 2009-03-11 | 湖南顶立科技有限公司 | Fast cooling method for intermediate frequency induction sintering furnace |
| JP2011021850A (en) * | 2009-07-17 | 2011-02-03 | Tounetsu Co Ltd | One chamber type vacuum furnace |
| CN102162125A (en) * | 2011-05-12 | 2011-08-24 | 石金精密科技（深圳）有限公司 | Thermal field structure of polysilicon ingot casting furnace |
| CN102967140A (en) * | 2012-12-21 | 2013-03-13 | 湖南阳东微波科技有限公司 | Integral microwave vacuum sintering furnace |
| CN203657433U (en) * | 2013-11-01 | 2014-06-18 | 湖南顶立科技有限公司 | Vacuum sintering furnace |
-
2013
- 2013-11-01 CN CN201310533845.2A patent/CN103591793B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382388A (en) * | 2008-09-17 | 2009-03-11 | 湖南顶立科技有限公司 | Fast cooling method for intermediate frequency induction sintering furnace |
| JP2011021850A (en) * | 2009-07-17 | 2011-02-03 | Tounetsu Co Ltd | One chamber type vacuum furnace |
| CN102162125A (en) * | 2011-05-12 | 2011-08-24 | 石金精密科技（深圳）有限公司 | Thermal field structure of polysilicon ingot casting furnace |
| CN102967140A (en) * | 2012-12-21 | 2013-03-13 | 湖南阳东微波科技有限公司 | Integral microwave vacuum sintering furnace |
| CN203657433U (en) * | 2013-11-01 | 2014-06-18 | 湖南顶立科技有限公司 | Vacuum sintering furnace |
Non-Patent Citations (1)
| Title |
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| 易光: "真空处理炉炉温均匀性探讨", 《材料工程》, no. 4, 30 April 1997 (1997-04-30), pages 14 - 17 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515395A (en) * | 2014-12-25 | 2015-04-15 | 湖南顶立科技有限公司 | High-temperature furnace bed supporting device |
| CN106017071A (en) * | 2016-05-31 | 2016-10-12 | 成都西沃克真空科技有限公司 | Vacuum furnace |
| CN106017071B (en) * | 2016-05-31 | 2018-04-10 | 成都西沃克真空科技有限公司 | A kind of vacuum drying oven |
| CN113959222A (en) * | 2021-11-26 | 2022-01-21 | 中国原子能科学研究院 | High temperature furnace |
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| CN103591793B (en) | 2015-11-25 |
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Address after: 410000 in Hunan Dingli Technology Co., Ltd., east of Lantian North Road, north of liangtang East Road, west of Shuangtang Road, Xingsha industrial base, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: ADVANCED CORPORATION FOR MATERIALS & EQUIPMENTS Co.,Ltd. Address before: Changsha County City, Hunan province 410000 Changsha Muyun Town Industrial Park Patentee before: ADVANCED CORPORATION FOR MATERIALS & EQUIPMENTS Co.,Ltd. |
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Address after: 410199 No. 1271, liangtang East Road, Xingsha industrial base (Changlong Street), Changsha area, China (Hunan) pilot Free Trade Zone, Changsha, Hunan Province Patentee after: ADVANCED CORPORATION FOR MATERIALS & EQUIPMENTS Co.,Ltd. Address before: 410000 in Hunan Dingli Technology Co., Ltd., east of Lantian North Road, north of liangtang East Road, west of Shuangtang Road, Xingsha industrial base, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee before: ADVANCED CORPORATION FOR MATERIALS & EQUIPMENTS Co.,Ltd. |
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Address after: 410199 No. 1271, liangtang East Road, Xingsha industrial base (Changlong Street), Changsha area, China (Hunan) pilot Free Trade Zone, Changsha, Hunan Province Patentee after: Hunan Dingli Technology Co.,Ltd. Address before: 410199 No. 1271, liangtang East Road, Xingsha industrial base (Changlong Street), Changsha area, China (Hunan) pilot Free Trade Zone, Changsha, Hunan Province Patentee before: ADVANCED CORPORATION FOR MATERIALS & EQUIPMENTS Co.,Ltd. |