CN103757184A - Vacuum electric annealing furnace - Google Patents
Vacuum electric annealing furnace Download PDFInfo
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- CN103757184A CN103757184A CN201410036853.0A CN201410036853A CN103757184A CN 103757184 A CN103757184 A CN 103757184A CN 201410036853 A CN201410036853 A CN 201410036853A CN 103757184 A CN103757184 A CN 103757184A
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- furnace
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Abstract
The invention discloses a vacuum electric annealing furnace comprising a rack, a furnace body and an annealing cavity arranged in the furnace body, wherein two ends of the furnace body are open; a conveying device is arranged in the furnace body; openings at two ends of the furnace body are respectively provided with a sealing furnace cover; a vacuum pumping pipeline and a nitrogen filling pipeline are arranged on one of the furnace covers and respectively connected with a vacuum pumping device and a nitrogen filling device; an aluminum silicate fiber cotton liner is arranged in the annealing cavity; annular shelf bricks are uniformly embedded and laid on the liner along the length direction; resistance wires are arranged on the shelf bricks. The vacuum electric annealing furnace disclosed by the invention has the advantages that (1) through vacuumizing the airtight furnace cavity and filling the cavity with nitrogen, the annealing quality of die steel is increased and the heat loss in the furnace body is reduced; (2) the structures of the furnace covers are further improved, so that the sealing performance and the heat insulating performance of the furnace are increased and the service life of sealing materials is prolonged.
Description
Technical field
The present invention relates to a kind of vacuum electric annealing furnace, belong to die steel producing apparatus technical field.
Background technology
Annealing is a kind of metal heating processing technology, refers to metal is slowly heated to certain temperature, keeps enough time, then cooling with Reasonable Speed.Object is to reduce hardness, improves deep processing performance; Eliminate unrelieved stress, stable dimensions, reduces distortion and crackle tendency; Crystal grain thinning, adjusts tissue, eliminates tissue defects.
In the process for processing industry of metallic element, annealing furnace is a kind of heat treatment furnace of indispensability, is periodic operating heat treatment furnace.At present, in relevant industries, use more annealing furnace, its annealing way is combustion-type, and by using oil to anneal to workpiece, this annealing way exists following shortcoming: oil is comparatively expensive fuel, with combustion system annealing, can increase production cost, do not meet the energy-conservation requirement of national environmental protection, simultaneously temperature of combustion should not be controlled simultaneously, the more difficult assurance requirement of annealing comparatively accurately.
Summary of the invention
Goal of the invention: the object of the invention is to for the deficiencies in the prior art, a kind of vacuum electric annealing furnace is provided, it,, by vacuumizing in airtight furnace chamber, is then filled with nitrogen, has improved the annealing quality of die steel, reduces the loss of heat in furnace chamber.
Technical scheme: a kind of vacuum electric annealing furnace of the present invention, comprise frame, body of heater and be arranged on the anneal chamber in body of heater, the both ends open of described body of heater, wherein be provided with e Foerderanlage, the both ends open of described body of heater is provided with airtight bell, described bell is provided with vacuum lead and inflated with nitrogen pipeline, described vacuum lead and rush nitrogen pipeline distribution and be connected with vacuum extractor and nitrogen charging device, in described anneal chamber, be provided with aluminosilicate fiber cotton liner, in described, be lining with even embedding block annular along its length and put brick, described putting is provided with resistance wire on brick.
Further, described bell adopts 30mm Plate Steel to make, and bell inner side is provided with thermal insulation layer.
Further improve technique scheme, between described bell and body of heater, adopt inside and outside two-layer composite sealing, internal layer graphite asbestos strip, the outer silicon rubber by oil resistant heatproof.
Further, described bell is provided with water cooling plant, and described water cooling plant is welded on respectively bell and body of heater flange, for the protection of sealing material.
Compared with prior art, its beneficial effect is in the present invention: vacuum electric annealing furnace of the present invention, and (1), by vacuumizing in airtight furnace chamber, is then filled with nitrogen, has improved the annealing quality of die steel, reduces the loss of heat in furnace chamber; (2) furnace cover structure is further improved, improved its sealing thermal insulation performance, extended the work-ing life of sealing material.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, frame; 2, body of heater; 3, anneal chamber; 4, bell; 5, vacuum lead; 6, inflated with nitrogen pipeline.
Embodiment
Below technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
embodiment 1:as shown in Figure 1, a kind of vacuum electric annealing furnace, comprise frame 1, body of heater 2 and be arranged on the anneal chamber 3 in body of heater, the both ends open of described body of heater, wherein be provided with e Foerderanlage, the both ends open of described body of heater is provided with airtight bell 4, described bell is provided with vacuum lead 5 and inflated with nitrogen pipeline 6, described vacuum lead 5 and rush nitrogen pipeline 6 distributions and be connected with vacuum extractor and nitrogen charging device, in described anneal chamber 3, be provided with aluminosilicate fiber cotton liner, in described, be lining with along its length evenly embedding and build annular and put brick, described in put resistance wire be installed on brick.
Described bell adopts 30mm Plate Steel to make, and bell inner side is provided with thermal insulation layer.Between described bell and body of heater, adopt inside and outside two-layer composite sealing, internal layer graphite asbestos strip, the outer silicon rubber by oil resistant heatproof.State bell and be provided with water cooling plant, described water cooling plant is welded on respectively bell and body of heater flange, for the protection of sealing material.
As mentioned above, although represented and explained the present invention with reference to specific preferred embodiment, it shall not be construed as the restriction to the present invention self.Not departing under the spirit and scope of the present invention prerequisite of claims definition, can make in the form and details various variations to it.
Claims (4)
1. a vacuum electric annealing furnace, comprise frame, body of heater and be arranged on the anneal chamber in body of heater, it is characterized in that, the both ends open of described body of heater, wherein be provided with e Foerderanlage, the both ends open of described body of heater is provided with airtight bell, described bell is provided with vacuum lead and inflated with nitrogen pipeline, described vacuum lead and rush nitrogen pipeline distribution and be connected with vacuum extractor and nitrogen charging device, in described anneal chamber, be provided with aluminosilicate fiber cotton liner, in described, be lining with along its length evenly embedding and build annular and put brick, described in put resistance wire be installed on brick.
2. a kind of vacuum electric annealing furnace according to claim 1, is characterized in that, described bell adopts 30mm Plate Steel to make, and bell inner side is provided with thermal insulation layer.
3. a kind of vacuum electric annealing furnace according to claim 2, is characterized in that, adopts inside and outside two-layer composite sealing between described bell and body of heater, internal layer graphite asbestos strip, the outer silicon rubber by oil resistant heatproof.
4. a kind of vacuum electric annealing furnace according to claim 3, is characterized in that, described bell is provided with water cooling plant, and described water cooling plant is welded on respectively bell and body of heater flange, for the protection of sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036853.0A CN103757184A (en) | 2014-01-26 | 2014-01-26 | Vacuum electric annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036853.0A CN103757184A (en) | 2014-01-26 | 2014-01-26 | Vacuum electric annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103757184A true CN103757184A (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410036853.0A Pending CN103757184A (en) | 2014-01-26 | 2014-01-26 | Vacuum electric annealing furnace |
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| CN (1) | CN103757184A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400934A (en) * | 2015-11-23 | 2016-03-16 | 苏州市职业大学 | Vertical type hardening furnace |
| CN106122776A (en) * | 2016-06-30 | 2016-11-16 | 东莞轩朗实业有限公司 | The production method of quantum dot Rhizoma Dioscoreae (peeled) |
| CN106755939A (en) * | 2017-03-10 | 2017-05-31 | 江苏伟建工具科技有限公司 | A kind of high-speed steel is flushed with hydrogen annealing pipe |
| CN107699664A (en) * | 2017-11-29 | 2018-02-16 | 苏州金钜松机电有限公司 | A kind of vacuum annealing furnace of heat stepwise |
| CN107723426A (en) * | 2017-11-29 | 2018-02-23 | 苏州金钜松机电有限公司 | A kind of vacuum annealing furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2791065Y (en) * | 2005-05-31 | 2006-06-28 | 孔可强 | Vacuum-prepumping protective atmosphere multi-purpose furnace |
| CN202519307U (en) * | 2012-03-12 | 2012-11-07 | 溧阳市宏大机械设备有限公司 | Double-layer sealing non-standard bell type furnace |
| CN202968636U (en) * | 2012-11-22 | 2013-06-05 | 天津钢管集团股份有限公司 | Vacuum-annealing thermal treatment furnace for titanium alloy tubes |
| CN203754765U (en) * | 2014-01-26 | 2014-08-06 | 万世泰金属工业（昆山）有限公司 | Vacuum electric annealing furnace |
-
2014
- 2014-01-26 CN CN201410036853.0A patent/CN103757184A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2791065Y (en) * | 2005-05-31 | 2006-06-28 | 孔可强 | Vacuum-prepumping protective atmosphere multi-purpose furnace |
| CN202519307U (en) * | 2012-03-12 | 2012-11-07 | 溧阳市宏大机械设备有限公司 | Double-layer sealing non-standard bell type furnace |
| CN202968636U (en) * | 2012-11-22 | 2013-06-05 | 天津钢管集团股份有限公司 | Vacuum-annealing thermal treatment furnace for titanium alloy tubes |
| CN203754765U (en) * | 2014-01-26 | 2014-08-06 | 万世泰金属工业（昆山）有限公司 | Vacuum electric annealing furnace |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400934A (en) * | 2015-11-23 | 2016-03-16 | 苏州市职业大学 | Vertical type hardening furnace |
| CN106122776A (en) * | 2016-06-30 | 2016-11-16 | 东莞轩朗实业有限公司 | The production method of quantum dot Rhizoma Dioscoreae (peeled) |
| CN106122776B (en) * | 2016-06-30 | 2019-01-25 | 东莞轩朗实业有限公司 | The production method of quantum dot striation |
| CN106755939A (en) * | 2017-03-10 | 2017-05-31 | 江苏伟建工具科技有限公司 | A kind of high-speed steel is flushed with hydrogen annealing pipe |
| CN107699664A (en) * | 2017-11-29 | 2018-02-16 | 苏州金钜松机电有限公司 | A kind of vacuum annealing furnace of heat stepwise |
| CN107723426A (en) * | 2017-11-29 | 2018-02-23 | 苏州金钜松机电有限公司 | A kind of vacuum annealing furnace |
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Application publication date: 20140430 |