CN204329631U - Intermediate frequency furnace for sintering multiple volatile substances - Google Patents
Intermediate frequency furnace for sintering multiple volatile substances Download PDFInfo
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- CN204329631U CN204329631U CN201420719796.1U CN201420719796U CN204329631U CN 204329631 U CN204329631 U CN 204329631U CN 201420719796 U CN201420719796 U CN 201420719796U CN 204329631 U CN204329631 U CN 204329631U
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- heater
- air inlet
- intermediate frequency
- hydrogen
- frequency furnace
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Abstract
The utility model discloses an intermediate frequency furnace of many volatile substances of sintering belongs to the intermediate frequency furnace field. The intermediate frequency furnace comprises a furnace body, a heating body, an upper air inlet and a tungsten bar, wherein the upper end of the heating body is provided with an upper opening, the upper air inlet is arranged at the upper end of the furnace body and communicated with the inside of the furnace body, the tungsten bar is arranged at the bottom inside the heating body, a lower air inlet is arranged at the bottom of the furnace body and the bottom of the heating body, and the outside of the furnace body is communicated with the inside of the. Through set up the lower air inlet outside the intercommunication furnace body and in the heat-generating body bottom at furnace body and heat-generating body, can realize by last air inlet exhaust furnace body air, lower air inlet gets into hydrogen to the heat-generating body in, gets into the furnace body by the heat-generating body upper shed again and establishes the hydrogen atmosphere, can increase the hydrogen through sintered material surface, makes the hydrogen atmosphere in the furnace body more even, makes full stove sintered material sintering effect unanimous.
Description
Technical field
The utility model relates to intermediate frequency furnace field, particularly relates to the intermediate frequency furnace that a kind of rare metal industry sinters many volatile materials.
Background technology
Intermediate frequency furnace utilizes intermediate frequency power supply to set up intermediate frequency magnetic field, makes Ferromagnetic Material produce inductive loop and generate heat, reach the object of heating material.Intermediate frequency furnace application widely, be mainly used in melting carbon steel, steel alloy, special steel, or for copper, the melting of the non-ferrous metals such as aluminium and temperature raising, also can be used for the aspects such as tungsten and molybdenum material sintering.
Tungsten and molybdenum material intermediate frequency furnace sintering is generally carry out under an atmosphere of hydrogen, because hydrogen is a kind of inflammable, explosive gas, and be gas the lightest in all gas, for preventing blast, the mode adopting upper entering and lower leaving is moved towards with the intermediate frequency furnace design hydrogen of hydrogen, all to be discharged by the air in intermediate frequency furnace, prevent danger.
At sintering pure tungsten, during the few material of the volatile matters such as blunt molybdenum, hydrogen is as a kind of reducing agent, a kind of protection gas, sintering requirement can be met, but when sintering Doped Tungsten, during the many material of the volatile matters such as tungsten aluminium, because hydrogen passage has two-way, one tunnel is that hydrogen arrives hydrogen outlet by calandria inside, another road arrives hydrogen outlet by the space between coil and furnace wall, and vapour lock is little between coil and furnace wall, so limited by the hydrogen of material surface, volatile matter is difficult to take away, volatile matter in material is volatilized not out, sintering does not reach desirable effect, strengthen hydrogen flowing quantity and can improve sintering effect, but due to demand amounts of hydrogen too large (300kg material need 100 per hour side hydrogen), very large difficulty is brought to air feed.
Utility model content
Based on the problem existing for above-mentioned prior art, the utility model provides a kind of intermediate frequency furnace sintering many volatile materials, can strengthen the hydrogen by material surface, makes the atmosphere of hydrogen in body of heater more even, is conducive to full stove agglomerated material sintering effect consistent.
For solving the problems of the technologies described above, the utility model provides a kind of intermediate frequency furnace sintering many volatile materials, comprise body of heater, be arranged on upper end in described body of heater have upper shed heater, be arranged on the enterprising gas port be communicated with in described body of heater upper end and described body of heater and the tungsten rod being arranged on described heater inner bottom part, be provided with lower air inlet bottom described body of heater and calandria, described lower air inlet is communicated with outer for described body of heater with in described calandria.
The beneficial effects of the utility model are: by arranging the lower air inlet be communicated with outside body of heater and in heater bottom body of heater with heater; can realize discharging air in body of heater by enterprising gas port; lower air inlet enters hydrogen in heater; entered in body of heater by heater upper shed again and set up hydrogen shield atmosphere; the hydrogen on institute's agglomerated material surface can be increased through; make the atmosphere of hydrogen in body of heater more even, make full stove agglomerated material sintering effect consistent.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The schematic diagram of the intermediate frequency furnace that Fig. 1 provides for the utility model embodiment;
The schematic diagram of the tungsten plate of the intermediate frequency furnace that Fig. 2 provides for the utility model embodiment.
Detailed description of the invention
Be clearly and completely described the technical scheme in the utility model embodiment below, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection domain of the present utility model.
Figure 1 shows that a kind of intermediate frequency furnace sintering many volatile materials that the utility model embodiment provides, specifically sinter Doped Tungsten in a kind of hydrogen shield atmosphere, tungsten aluminium, the intermediate frequency furnace of the materials such as W-Re, comprise body of heater 1, be arranged on the heater 2 that upper end in body of heater 1 has upper shed 20, be arranged on body of heater 1 upper end and the enterprising gas port 3 be communicated with in body of heater 1 and the tungsten rod 22 being arranged on heater 2 inner bottom part, lower air inlet 4 is provided with bottom body of heater 1 and calandria 2, lower air inlet 4 is communicated with outer for body of heater 1 with in calandria 2, in calandria, hydrogen is passed into by this lower air inlet 4.Calandria 2 is communicated with enterprising gas port 2 with in body of heater 1 by upper shed 20, and upper shed 20 can be arranged on the insulating brick lid 21 of heater 2.
Coordinate with enterprising gas port 3 by arranging lower air inlet 4, the air in intermediate frequency furnace all can be discharged by enterprising gas port 3 before electricity heats up, and ensure that in intermediate frequency furnace be hydrogen entirely, after starting sintering, enterprising gas port 3 charge flow rate controls 0.5 side per hour; Hydrogen in lower air inlet 4 all enters calandria 2, from bottom to top by calandria 2 arrive intermediate frequency furnace body 1 push up after from the gas outlet 8 turned back between coil 6 and furnace wall 7 body of heater 1, descend all hydrogen of air inlet 4 inner through heater 2 like this, increase a lot by the hydrogen on agglomerated material surface, effectively material volatile matter can be taken away, create good hydrogen sintering atmosphere.
Above-mentioned intermediate frequency furnace also comprises: be arranged on the tungsten plate 5 (tungsten plate 5 structure as shown in Figure 2) with some through holes 51 on heater 2 inner bottom part tungsten rod 22, this tungsten plate 5 covers lower air inlet 4 on tungsten rod 22, and lower air inlet 4 and some through holes 51 of tungsten plate 5 connect into the passage of air inlet in heater 2.The even cloth of some through holes 51 of this tungsten plate 5 is on this tungsten plate plate body, and tungsten plate 5 is circular, and external diameter is less than heater 2 internal diameter, and preferably, tungsten plate 5 external diameter can be slightly less than heater 2 internal diameter, can ensure the effect of even cloth hydrogen.By arranging this tungsten plate 5; the hydrogen entered through lower air inlet 4 is flowed out from each through hole of tungsten plate 5 uniformly; ensure the uniformity of every position hydrogen flowing quantity in heater 2, make atmosphere of hydrogen in whole heater even, ensure as agglomerated material provides the hydrogen shield atmosphere of even cloth.
Below to utilize the intermediate frequency furnace of the utility model embodiment to sinter cerium tungsten 20 (sintering of other high volatile volatile material is consistent with the sintering method of cerium tungsten 20, does not describe separately), the use procedure of its this intermediate frequency furnace is described in detail.
(1) 20,300kg cerium tungsten is filled in the intermediate frequency furnace of the utility model embodiment, builds the insulating brick lid of calandria and the bell of body of heater, prepare logical hydrogen and heat up;
(2) vacuumize, start evacuator, when vacuum values reaches requirement, close evacuator;
(3) open enterprising gas port adjust hydrogen stream time be 3 cubic metres per hour, open lower air inlet adjust hydrogen flowing quantity be 30 cubic metres per hour;
(4) when pressure instruction in intermediate frequency furnace body reaches hydrogen for after hydrogen pressure, did detonation test after 5 minutes, heat up to after pass the test electricity;
(5) heat up by heating process, insulation terminates rear cooling 8 hours;
(6) cooling shuts air inlet and lower air inlet after terminating, and vacuumizes;
(7), when vacuum values reaches requirement, evacuator is closed, blow-on lid and insulating brick lid feeding;
(8) survey burn cerium tungsten proportion 18.0, reach sintering requirement.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (4)
1. the intermediate frequency furnace of the many volatile materials of sintering, comprise body of heater, be arranged on upper end in described body of heater have upper shed heater, be arranged on the enterprising gas port be communicated with in described body of heater upper end and described body of heater and the tungsten rod being arranged on described heater inner bottom part, it is characterized in that, be provided with lower air inlet bottom described body of heater and calandria, described lower air inlet is communicated with outer for described body of heater with in described calandria.
2. a kind of intermediate frequency furnace sintering many volatile materials according to claim 1, it is characterized in that, also comprise: be arranged on the tungsten plate with some through holes on described heater inner bottom part tungsten rod, this tungsten plate covers the lower air inlet below described tungsten rod, and some through holes of described lower air inlet and described tungsten plate connect into the passage of air inlet in described heater.
3. a kind of intermediate frequency furnace sintering many volatile materials according to claim 2, is characterized in that, the even cloth of described some through holes is on described tungsten plate plate body.
4. a kind of intermediate frequency furnace sintering many volatile materials according to Claims 2 or 3, is characterized in that, described tungsten plate is circular, and external diameter is less than described heater internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719796.1U CN204329631U (en) | 2014-11-25 | 2014-11-25 | Intermediate frequency furnace for sintering multiple volatile substances |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719796.1U CN204329631U (en) | 2014-11-25 | 2014-11-25 | Intermediate frequency furnace for sintering multiple volatile substances |
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| CN204329631U true CN204329631U (en) | 2015-05-13 |
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| CN201420719796.1U Active CN204329631U (en) | 2014-11-25 | 2014-11-25 | Intermediate frequency furnace for sintering multiple volatile substances |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689699A (en) * | 2016-01-27 | 2016-06-22 | 西安建筑科技大学 | Production device and technique for preparing low-oxygen powder material |
-
2014
- 2014-11-25 CN CN201420719796.1U patent/CN204329631U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689699A (en) * | 2016-01-27 | 2016-06-22 | 西安建筑科技大学 | Production device and technique for preparing low-oxygen powder material |
| CN105689699B (en) * | 2016-01-27 | 2018-01-23 | 西安建筑科技大学 | A kind of process units and technique for producing hypoxemia dusty material |
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