CN104018102A - Non-oxidation well vacuum furnace - Google Patents
Non-oxidation well vacuum furnace Download PDFInfo
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- CN104018102A CN104018102A CN201410279508.XA CN201410279508A CN104018102A CN 104018102 A CN104018102 A CN 104018102A CN 201410279508 A CN201410279508 A CN 201410279508A CN 104018102 A CN104018102 A CN 104018102A
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- furnace
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- inner bag
- burner hearth
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Abstract
The invention discloses a non-oxidation well vacuum furnace which comprises a furnace body, a liner (15) and a cover body, wherein the furnace body comprises a furnace frame (1), a furnace shell (2) and a furnace lining (14); the furnace shell (2) is fixed on the furnace frame (1); a screw rod lifting mechanism (6) mounted on the furnace body and the cover body is used for opening and closing the furnace cover (5) and the furnace body; a sealing ring (7) is arranged between the furnace cover (5) and the liner (15); the furnace cover (5) is provided with a vacuumizing pipe (11), a protective gas filling pipe (12) and a fan (10). The non-oxidation well vacuum furnace is characterized in that the furnace cover (5) is also provided with a thermocouple (9) which passes through the furnace cover (5) and enters the hearth to measure the temperature in the furnace and feeds the temperature back to a user. The non-oxidation well vacuum furnace disclosed by the invention is novel in conception and reasonable in design; in non-oxidation annealing treatment, the temperature of the whole furnace has good uniformity, and the scale of the annealed workpiece is avoided; quick cooling can be performed after heating, the production efficiency is greatly improved, and the service life is long.
Description
Technical field
The present invention relates to industrial heat treatment furnace technical field, especially relate to non-oxidation well vacuum stove.
Background technology
For the annealing thermal treatment of the materials such as non-ferrous metal, prior art adopts common bell furnace or well formula oxidation annealing stove more, and inefficiency, consumes energy high, and oxygenizement at high temperature occurs workpiece, and surface is easy to form oxide skin corrosion product.
Summary of the invention
The deficiency existing during for the above annealing of metal materials thermal treatment, the object of the invention is to provide a kind of non-oxidation well vacuum stove, be used for the thermal treatment of metallic substance vacuum anaerobic annealing, and conscientiously solved the problem in work-ing life of the vacuum seal under hot environment.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of non-oxidation well vacuum stove, comprise body of heater, inner bag and lid, described body of heater comprises grate, furnace shell and furnace lining, described furnace shell is fixed on grate, the burner hearth that has furnace lining to surround in described furnace shell, inner bag is located in burner hearth, described lid comprises bell and liner, liner is fixed on bell, the screw lift structure of installing on described body of heater and lid, be used for opening and seal bell and body of heater, between bell and inner bag, be provided with sealing-ring, bell is provided with vacuum-pumping tube, fill shielding gas pipe and blower fan, it is characterized in that: on described bell, be also provided with thermopair, thermopair enters the interior temperature of measurement stove in burner hearth through bell, and feed back to user.
Described burner hearth surrounding is fixed with side an electric heating element, and upper furnace has thermovent, and the bottom of burner hearth is fixed with end an electric heating element.
Described inner bag suitable for reading, is provided with around the inner bag water bag of a week, and described water bag is to go along with sb. to guard him into airtight inner chamber by steel plate or steel pipe, and is provided with water-in and water outlet, and sealing-ring is located between the water bag of bell and inner bag, sealing inner container suitable for reading.
Described thermopair is armoured thermocouple.
The present invention, novel, reasonable in design, in non-oxidation anneal, whole stove temperature uniformity is good, and annealing workpiece non-scale produces, can be cooling fast after having heated, greatly enhance productivity, long service life.
Accompanying drawing explanation
Accompanying drawing is that non-oxidation well vacuum stove master of the present invention looks sectional view.
In accompanying drawing: 1-grate; 2-furnace shell; 3-gas blower; 4-water bag; 5-bell; 6-screw lift structure; 7-sealing-ring; 8-hook; 9-thermopair; 10-blower fan; 11-vacuum-pumping tube; 12-fills shielding gas pipe; 13-thermovent; 14-furnace lining; 15-inner bag; 16-side an electric heating element; 17-refractory brick; An electric heating element at the bottom of 18-.
Embodiment
Shown in accompanying drawing, non-oxidation well vacuum stove of the present invention, comprise body of heater, inner bag 15 and lid, described body of heater comprises grate 1, furnace shell 2 and furnace lining 14, described grate 1 adopts channel-section steel and Plate Welding to form, stationary positioned is on ground, at grate 1 surface label welding steel plate (thickness ≮ 3 millimeter) furnace shell 2.The interior employing rivet clasp of described furnace shell 2 technology is fixed with furnace lining 14, the present embodiment furnace lining 14 total thickness ≮ 300 millimeter, employing unit weight is high aluminum fiber (compound) module of 200～250 kilograms/cubic metre, by furnace lining 14, go along with sb. to guard him into burner hearth, described burner hearth is opening up, and be sprayed with one deck high-temperature curing agent on furnace lining 14 surfaces, form one deck insulated wall, increase honorable intensity and the heat-radiating properties of furnace lining 14 lining, and further reduce to serve as a contrast body accumulation of heat loss, reach the effect being rapidly heated, improve to greatest extent the thermo-efficiency of stove.Described burner hearth bottom is refractory brick 17 fixedly, is fixed with drum-shaped stainless steel inner container 15 on refractory brick 17, and described inner bag 15 is opening up.The present embodiment high-strength refractory brick 17 has enough intensity to bear pressure, has again good resistance to elevated temperatures.Described lid comprises bell 5 and liner, described steel plate bell 5 inner sides are fixed with high aluminum fiber (compound) module liner, by screw mandrel (lifting) mechanism 6 of installing on body of heater and lid, lifting, keying lid, can by bell 5 fixed caps on burner hearth and inner bag 15, cover tightly burner hearth opening, be combined between bell 5 and inner bag 15 and be provided with silica gel sealing ring 7, sealing inner container 15 openings, guaranteeing that inner bag 15 vacuumizes carries out annealing without non-oxidation; Can after workpiece has been annealed, open bell 5, take out workpiece.Fixing hook 8 on bell 5, plays assistance for lifting, opens and closes bell 5 effects.The present embodiment or suitable for reading at inner bag 15, be provided with and connect airtight set collar around the inner bag water bag 4 of 15 1 weeks, described water bag 4 is gone along with sb. to guard him into airtight inner chamber by steel plate or steel pipe, and be provided with water-in and water outlet, recirculated cooling water is by water-in and water outlet, circulation water-in and water-out bag 4 inner chambers, described sealing-ring 7 is located between bell 5 and the water bag 4 of inner bag 15, described water bag 4 can impose cooling to sealing-ring 7, extended the work-ing life of condition of high temperature lower seal 7, guarantee that sealing-ring 7 remains good sealing effectiveness.Lid of the present invention is fixed with vacuum-pumping tube 11 and fills shielding gas pipe 12; pass into inner bag 15; for inner bag 15 inner chambers are vacuumized and are filled with shielding gas; also be fixed with thermopair; described thermopair is armoured thermocouple, measures the interior temperature of inner bag 15, and is fixed with blower fan 10; make inner bag 15 inner chamber circulations of air and keep temperature equalisation, whole stove temperature uniformity is controlled in the temperature difference ± 8 ℃.After workpiece has been annealed, furnace temperature can be cooling fast, and body of heater of the present invention is fixed with centrifugal blower 3, and have thermovent 13.Described thermovent 13 adopts lagging material sealing when workpiece is annealed, and after workpiece anneal, opens (lead to) thermovent 13, starts gas blower 3, and to air blast heat radiation in burner hearth, acceleration waste heat is from thermovent 13 discharges.For considering the homogeneity of fire box temperature, side an electric heating element 16 of the present invention and end an electric heating element 18 are arranged in burner hearth surrounding and burner hearth bottom.The distribution of heating unit, the surrounding of burner hearth adopts the 0Cr25AL5 resistive band that Shoudu Iron and Steel Co produces to arrange, and bottom has resistance wire to be arranged in the bottom of drop-bottom.Resistive band mounting means adopts dedicated ceramic screw to fix, and its structure formation is easy for installation, safeguards, changes fast, very convenient, will not form hot short circuit and cause stove outer covering local superheating phenomenon with furnace shell 2.During installation, between furnace lining 14 and resistive band, be separated with ceramic washer, to guarantee that furnace lining 14 does not directly contact with resistive band, thus the heating effect of increase resistive band.Described ceramic screw and packing ring all adopt high aluminium material sinter molding under middle temperature, guarantee that it has sufficient intensity and work-ing life.
Except the above, the present invention can also have other embodiments.In every case adopt the technical scheme that is equal to replacement or equivalent transformation formation, all belong to the protection domain of requirement of the present invention.
Claims (4)
1. a non-oxidation well vacuum stove, comprise body of heater, inner bag (15) and lid, described body of heater comprises grate (1), furnace shell (2) and furnace lining (14), described furnace shell (2) is fixed on grate (1), the burner hearth that has furnace lining (14) to surround in described furnace shell (2), inner bag (15) is located in burner hearth, described lid comprises bell (5) and liner, liner is fixed on bell (5), the screw lift structure (6) of installing on described body of heater and lid, be used for opening and seal bell (5) and body of heater, between bell (5) and inner bag (15), be provided with sealing-ring (7), bell (5) is provided with vacuum-pumping tube (11), fill shielding gas pipe (12) and blower fan (10), it is characterized in that: on described bell (5), be also provided with thermopair (9), thermopair (9) enters the interior temperature of measurement stove in burner hearth through bell (5), and feed back to user.
2. a kind of non-oxidation well vacuum stove according to claim 1, is characterized in that: described burner hearth surrounding is fixed with side an electric heating element (16), and upper furnace has thermovent (13), and the bottom of burner hearth is fixed with end an electric heating element (18).
3. a kind of non-oxidation well vacuum stove according to claim 1, it is characterized in that: described inner bag (15) suitable for reading, be provided with around the inner bag water bag (4) of (15) weeks, described water bag (4) is to go along with sb. to guard him into airtight inner chamber by steel plate or steel pipe, and be provided with water-in and water outlet, sealing-ring (7) is located between bell (5) and the water bag (4) of inner bag (15), sealing inner container (15) suitable for reading.
4. a kind of non-oxidation well vacuum stove according to claim 1, is characterized in that: described thermopair (9) is armoured thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279508.XA CN104018102A (en) | 2014-06-23 | 2014-06-23 | Non-oxidation well vacuum furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279508.XA CN104018102A (en) | 2014-06-23 | 2014-06-23 | Non-oxidation well vacuum furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104018102A true CN104018102A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410279508.XA Pending CN104018102A (en) | 2014-06-23 | 2014-06-23 | Non-oxidation well vacuum furnace |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219930A (en) * | 2015-09-17 | 2016-01-06 | 苏州新协力特种工业模板有限公司 | A kind of iron and steel vacuum annealing furnace |
| CN106381463A (en) * | 2016-12-13 | 2017-02-08 | 大连圣洁真空技术开发有限公司开发区分公司 | Heat-insulation structure of salt-bath furnace |
| CN106498339A (en) * | 2016-12-13 | 2017-03-15 | 大连圣洁真空技术开发有限公司开发区分公司 | A kind of salt-bath nitriding stove salt adding sealing structure |
| CN107723437A (en) * | 2017-09-27 | 2018-02-23 | 中原特钢股份有限公司 | A kind of bar destressing special furnace |
| CN109468437A (en) * | 2018-05-31 | 2019-03-15 | 西安圣泰金属材料有限公司 | A kind of temperature-reduction at constant speed vacuum annealing furnace |
| CN110388463A (en) * | 2019-07-09 | 2019-10-29 | 中国航发哈尔滨东安发动机有限公司 | A kind of rubber sealing device of adjustable decrement |
-
2014
- 2014-06-23 CN CN201410279508.XA patent/CN104018102A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219930A (en) * | 2015-09-17 | 2016-01-06 | 苏州新协力特种工业模板有限公司 | A kind of iron and steel vacuum annealing furnace |
| CN106381463A (en) * | 2016-12-13 | 2017-02-08 | 大连圣洁真空技术开发有限公司开发区分公司 | Heat-insulation structure of salt-bath furnace |
| CN106498339A (en) * | 2016-12-13 | 2017-03-15 | 大连圣洁真空技术开发有限公司开发区分公司 | A kind of salt-bath nitriding stove salt adding sealing structure |
| CN107723437A (en) * | 2017-09-27 | 2018-02-23 | 中原特钢股份有限公司 | A kind of bar destressing special furnace |
| CN107723437B (en) * | 2017-09-27 | 2024-01-23 | 河南中原特钢装备制造有限公司 | Special furnace for bar destressing |
| CN109468437A (en) * | 2018-05-31 | 2019-03-15 | 西安圣泰金属材料有限公司 | A kind of temperature-reduction at constant speed vacuum annealing furnace |
| CN109468437B (en) * | 2018-05-31 | 2020-05-19 | 西安圣泰金属材料有限公司 | Constant-speed cooling vacuum annealing furnace |
| CN110388463A (en) * | 2019-07-09 | 2019-10-29 | 中国航发哈尔滨东安发动机有限公司 | A kind of rubber sealing device of adjustable decrement |
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Legal Events
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140903 |
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| WD01 | Invention patent application deemed withdrawn after publication |