CN209681125U - Agitating type vacuum fine grain foundry furnace - Google Patents
Agitating type vacuum fine grain foundry furnace Download PDFInfo
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- CN209681125U CN209681125U CN201920352229.XU CN201920352229U CN209681125U CN 209681125 U CN209681125 U CN 209681125U CN 201920352229 U CN201920352229 U CN 201920352229U CN 209681125 U CN209681125 U CN 209681125U
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Abstract
The utility model category aircraft industry fine grain castings production apparatus field more particularly to a kind of agitating type vacuum fine grain foundry furnace and its application method, including upper furnace chamber (1), lower furnace chamber (2), upper furnace chamber vacuum system (8) and lower furnace chamber vacuum system (9)；Formwork heater (3) and formwork temperature measuring equipment (10) are equipped in upper furnace chamber (1)；Melting coil (5), formwork stirring mechanism (6) and formwork elevating mechanism (7) are equipped in lower furnace chamber (2)；Formwork stirring mechanism (6) is fixed at lower furnace chamber (2) bottom center region；Formwork stirring mechanism (6) includes formwork agitation driving unit (11) and annular agitation pallet (601)；Formwork lifting disk (701) are fixed at the top of formwork elevating mechanism (7)；Formwork lifting disk (701) is equipped with formwork (14)；The utility model high production efficiency, equipment dynamic stability is good, and global reliability is strong, easy to maintain.
Description
Technical field
The utility model category aircraft industry fine grain castings production apparatus field more particularly to a kind of casting of agitating type vacuum fine grain
Furnace is made, high temperature alloy fine grain castings production needed for being mainly used in aerospace and relevant industries.
Background technique
The main purpose of fine grain casting is the low cycle fatigue property in order to improve casting.Using high shell temperature and casting
Temperature, isometric fine grain casting is obtained by the agitation Mechanical Crushing casting crystalline grain of casting mold, and casting degree of purity is high.This technology master
It is used for the key positions such as aerospace engine.The equipment generally uses vertical structure, and furnace body is placed on workbench.Casting mold
Elevating mechanism is placed in melt pit, and vacuum system is placed on work ground.To reinforce rigidity, shell adds bee snail and T-type muscle.Inner wall and
Fire door flange is by fine polishing, convenient for removing melting volatile matter.Top installs coil, and radial water cooling crystallographic orientation device and casting mold stir
Dynamic fine grain casting device.Casting mold room is located at the top of working chamber, and water-jacket typ is cooling, and water-jacket typ is cooling, and inner wall and fire door flange are
Stainless steel plate, outer wall is common carbon steel plate, inner wall and fire door flange by fine polishing, convenient for removing melting volatile matter.Casting mold
It is separated between room and working chamber with flap valve, casting mold room can individually vacuumize, and casting mold room sets graphite electrode heater.Melting coil
It is connected by the water-cooled cable into outside electric shaft and furnace for the body sidewall that breaks with melting intermediate frequency power supply.
Existing vacuum fine grain foundry furnace still has that production efficiency is low, and equipment dynamic stability is poor, and global reliability is not high
Problem.
Utility model content
The utility model overcomes the shortcomings of the prior art place and provides a kind of high production efficiency, equipment dynamic stability
Property is good, and global reliability is strong, agitating type vacuum fine grain foundry furnace easy to maintain.
The utility model also provides a kind of application method of above-mentioned agitating type vacuum fine grain foundry furnace.
In order to solve the above technical problems, the utility model is realized in this way:
Agitating type vacuum fine grain foundry furnace, including upper furnace chamber, lower furnace chamber, upper furnace chamber vacuum system and lower furnace chamber vacuum system
System；The upper furnace chamber fixation is placed on lower furnace chamber；The lower furnace chamber cavity is communicated through isolating valve with upper furnace chamber cavity；On described
The working port of furnace chamber vacuum system and lower furnace chamber vacuum system is communicated with the working port of upper furnace chamber and lower furnace chamber respectively；Institute
It states and is equipped with formwork heater and formwork temperature measuring equipment in furnace chamber；Melting coil, formwork shaker machine are equipped in the lower furnace chamber
Structure and formwork elevating mechanism；The formwork stirring mechanism is fixed at lower furnace chamber bottom center region；The formwork stirring mechanism
Driving unit and annular agitation pallet are stirred including formwork；The power output end of the formwork agitation driving unit drives annular to stir
Dynamic pallet rotation；Formwork lifting disk is fixed at the top of the formwork elevating mechanism；The formwork lifting disk is equipped with formwork；
The minimum diameter of the annular agitation pallet is greater than the diameter of formwork lifting disk.
As a preferred embodiment, positive anti-switching driver can be used in formwork agitation driving unit described in the utility model
Structure.
Further, water-cooling structure can be used in isolating valve described in the utility model.
Further, the tapered structure of looping pit of annular agitation pallet described in the utility model.
The application method of above-mentioned agitating type vacuum fine grain foundry furnace, can implement as follows:
A, master alloy is placed in lower furnace chamber in the crucible of melting coil, the annular that formwork is placed in formwork stirring mechanism is stirred
On dynamic pallet；
B, isolating valve is in close state, and is closed fire door, is synchronized to upper furnace chamber and lower furnace chamber and vacuumize operation；
C, after upper furnace chamber and lower furnace chamber reach specified vacuum degree, isolating valve is opened；
D, formwork is raised to the designated position in upper furnace chamber in formwork heater by formwork elevating mechanism；Formwork heater is logical
Electricity heats formwork；Control is carried out to temperature-rise period by formwork temperature measuring equipment to acquire with data；
E, after reaching predetermined temperature, start intermediate frequency power supply, be powered to melting coil；When master alloy fusing, reach
Assigned temperature and when having casting condition, formwork elevating mechanism stirs the annular that formwork is displaced downwardly to formwork stirring mechanism in lower furnace chamber
On dynamic pallet, isolating valve is closed at this time；
F, melting coil pours into master alloy melt in formwork, and positive and negative rotation direction agitation formwork carries out formwork stirring mechanism repeatedly
Fine grain operation；
G, to fine grain operation complete, reach formwork come out of the stove condition when, lower furnace chamber vacuum system by itself valve cutting with
The connection of lower furnace chamber；
H, the formwork that casting manipulations are completed is taken out；Crucible in cleaning or replacement melting coil, the formwork more renewed are quasi-
It is standby to carry out next heat cycle operation.
The utility model is a kind of continuous shape vacuum fine grain foundry furnace, agitation stability height, production fast with agitation speed
The features such as beat is fast.The utility model uses vertical layout, and occupied area is small；The shape separated using stirring mechanism with elevating mechanism
Formula has the characteristics that stability is high, highly reliable, easy to maintain compared with traditional structure.
Compared with prior art, the utility model has following features.
1, the utility model is laid out using vertical double-chamber, and equipment is continuous type, high production efficiency.
2, formwork heating is placed in upper chamber by the utility model, and melting coil and fine grain agitation casting associated mechanisms are placed in lower furnace
Room can move down the center of gravity of whole equipment as far as possible, and the dynamic stability of equipment increases substantially.
3, the utility model uses the thinking of stirring mechanism and formwork elevating mechanism independent design, it is ensured that Liang Zhong mechanism
It is not interfere with each other in working condition, improves equipment moving stability and global reliability.
Detailed description of the invention
The utility model is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.The utility model
Protection scope is not only limited to the statement of following content:
Fig. 1 is the utility model overall structure diagram.
In figure: 1, upper furnace chamber；2, lower furnace chamber；3, formwork heater；4, isolating valve；5, melting coil；6, formwork shaker machine
Structure；601, annular agitation pallet；7, formwork elevating mechanism；701, formwork lifting disk；8, upper furnace chamber vacuum system；9, lower furnace chamber is true
Empty set system；10, formwork temperature measuring equipment；11, formwork stirs driving unit；12, formwork elevation driving unit；13, formwork lifting is dynamic
Sealing；14, formwork.
Specific embodiment
As shown, agitating type vacuum fine grain foundry furnace, including upper furnace chamber 1, lower furnace chamber 2, upper furnace chamber vacuum system 8 and under
Furnace chamber vacuum system 9；The fixation of upper furnace chamber 1 is placed on lower furnace chamber 2；2 cavity of lower furnace chamber is through isolating valve 4 and upper furnace chamber
1 cavity communicates；The working port of the upper furnace chamber vacuum system 8 and lower furnace chamber vacuum system 9 respectively with upper furnace chamber 1 and lower furnace chamber
2 working port communicates；Formwork heater 3 and formwork temperature measuring equipment 10 are equipped in the upper furnace chamber 1；In the lower furnace chamber 2
It is interior to be equipped with melting coil 5, formwork stirring mechanism 6 and formwork elevating mechanism 7；The formwork stirring mechanism 6 is fixed at lower furnace chamber 2
Bottom center region；The formwork stirring mechanism 6 includes formwork agitation driving unit 11 and annular agitation pallet 601；The mould
The power output end that shell stirs driving unit 11 drives annular agitation pallet 601 to rotate；The top of the formwork elevating mechanism 7 is solid
Surely it is equipped with formwork lifting disk 701；The formwork lifting disk 701 is equipped with formwork 14；In the minimum of the annular agitation pallet 601
Diameter is greater than the diameter of formwork lifting disk 701.
Formwork agitation driving unit 11 described in the utility model uses positive anti-switching transmission mechanism.Formwork stirring section moving cell
11 output shaft can drive annular agitation pallet 601 to rotate by gear transmission mode.When actual design, annular agitation pallet
601 bottom can be fixed with bearing block.Annular agitation pallet 601 can be realized on bearing block to be rotated freely.The utility model
The isolating valve 4 uses water-cooling structure.The tapered structure of looping pit of annular agitation pallet 601 described in the utility model.Formwork
14 bottom structure is consistent with the annular agitation structure of 601 looping pit of pallet.Annular agitation pallet 601 can pass through taper annular
Hole forms support to the bottom of formwork 14.
Agitating type vacuum fine grain foundry furnace is a kind of for carrying out the spy of fine grain hot investment casting under vacuum or protective atmosphere
Kind metallurgical equipment, this equipment are used for the fine grain casting of equiax crystal, predominantly leaf disk-like accessory.Such equipment and such equipment
Expansion equipment can be used for carrying out producing the fine grain hot investment casting product of high temperature alloy under vacuum (or protective atmosphere).Agitating type vacuum
Fine grain foundry furnace uses vertical double-chamber structure, and above, melting and casting room is in lower section for formwork room.Formwork room is mainly used for accommodating mould
Shell heater carries out the heating work before fine grain casting for formwork；Melting and casting room carries out base material alloy for inductor secondary
Remelting and fine grain casting technique operation；After formwork is completed to heat, formwork is moved to by elevating mechanism on the stirring mechanism of lower room,
Master alloy remelting simultaneously, which finishes, has casting condition, starts to carry out casting and fine grain operation.Isolating valve is closed upper and lower room at this time
It separates and maintains vacuum respectively；Lower furnace chamber vacuum breaker takes out casting (and formwork) after the completion of fine grain stirs operation, be put into new formwork and
Master alloy enters the subsequent work period.
The utility model formwork elevating mechanism is used for the formwork support transferred quickly formwork from upper furnace chamber to lower furnace chamber
On motivation structure.The utility model is laid out using vertical double-chamber, and the stirring mechanism of formwork is placed in lower furnace body and farthest guarantees to transport
Dynamic center of gravity reduces to improve the dynamic stability of equipment as much as possible.The utility model using vertical double-chamber be laid out, two furnace chambers it
Between separated by isolating valve, formwork when upper furnace chamber heats, isolating valve open, formwork is moved to upper chamber formwork by jacking system
In heater；Formwork is moved on lower room formwork stirring mechanism by jacking system after the completion of formwork heating, isolating valve is closed, no
Under the influence of room vacuum breaker plus master alloy, the mold changing operations such as shell.Thus it can realize that upper chamber is protected hot to vacuum under continuous duty
State.Agitation method fine grain is realized by a set of transmission mechanism with quickly positive anti-switching, can in formwork melting knot
Quickly positive anti-switching rotation is provided during brilliant, solid crystal grain is being tied for being crushed, is realizing fine grain casting.
The utility model solves the vibration generated in agitation method fine grain casting process using above-mentioned, this
It is fatal for vibrating for stabilization of equipment performance, significantly impacts the stability and effect of casting process.The utility model mould
Shell stirring mechanism and formwork elevating mechanism are the Liang Tao mechanism independently arranged, are not interfered in terms of mechanical structure,
Vibration that equipment generates during stirring fine grain can be guaranteed to elevating mechanism sealing and reliability effect very little.
As shown, the utility model include upper furnace chamber 1, lower furnace chamber 2, formwork heater 3, isolating valve 4, melting coil 5,
Formwork stirring mechanism 6, formwork elevating mechanism 7, upper furnace chamber vacuum system 8, lower furnace chamber vacuum system 9, formwork temperature measuring equipment 10, mould
Shell stirs driving unit 11 and formwork elevation driving unit 12.Above structure unit together constitutes the main body of equipment.On wherein
Furnace chamber 1 and lower furnace chamber 2 are welded structure, collectively constitute oven body part.Formwork heater 3, formwork temperature measuring equipment 10 are placed in
In furnace chamber 1, upper furnace chamber 1 is equipped with independent fire door with lower furnace chamber 2, for installation and casting manipulations.Isolating valve 4 is placed in lower furnace chamber
In 2, for realizing the sealing between upper furnace chamber 1 and lower furnace chamber 2, isolating valve 4 uses water-cooling structure, prevents for a long time in hot state
Valve plate is deformed.Melting coil 5, formwork stirring mechanism 6, formwork elevating mechanism 7 are placed in lower furnace chamber 2, wherein formwork liter
The formwork lifting disk of descending mechanism 7 is passed through from the annular agitation pallet in formwork stirring mechanism 6, when formwork 14 is placed in formwork lifting
When mechanism 7, with formwork lifting disk synchronizing moving.When formwork lifting disk is reduced to annular agitation pallet or less, formwork 14 is de-
It is placed on formwork stirring mechanism 6 from formwork elevating mechanism 7.Melting coil 5 is placed in lower furnace chamber 2, can be by the mother of secondary remelting
Alloy is poured into will be in the formwork 14 on formwork stirring mechanism 6.
Above equipment application method is as follows:
1, prepare alloy and formwork used, and routine inspection is carried out to equipment, functions feedback is normal, report without exception
Starting device after police；
2, in being placed in master alloy in the crucible of melting coil 5, the taper that formwork 14 is placed in formwork stirring mechanism 6 is fixed
On frame；
3, isolating valve 4 is in closing shape and reaches, and closes fire door, synchronizes to upper furnace chamber 1 and lower furnace chamber 2 and carry out vacuumizing operation；
4, after upper furnace chamber 1 reaches specified vacuum degree with lower furnace chamber 2, isolating valve 4 is opened, and upper and lower furnace chamber 1 connects with lower furnace chamber 2
It is logical；
5, formwork elevating mechanism 7 works, and formwork 14 is raised to the designated position in the formwork heater 3 of upper furnace chamber 2, then
Formwork heater 3 be powered, by set heating curve progress formwork heating operation, by formwork temperature measuring equipment 10 to temperature-rise period into
Row control is acquired with data；
6, after reaching predetermined temperature and keeping the temperature a period of time by technique, start intermediate frequency power supply, melting coil 5 is carried out greatly
Power is powered, and master alloy melts at this time, and reaches assigned temperature and have a casting condition, while formwork elevating mechanism 7 is by formwork 14
It is quickly displaced downwardly on the formwork stirring mechanism 6 in lower furnace chamber 2, in state to be cast, isolating valve 4 should be closed at this time, again will
Upper furnace chamber 1 is separated with lower furnace chamber 2；
7, melting coil 5 is poured into master alloy melt in formwork 14 by set casting curve, by given design scheme, is stood
After several minutes, positive and negative rotation direction agitation formwork 14 carries out fine grain operation to formwork stirring mechanism 6 repeatedly；
8, to fine grain make complete latter time, and have formwork 14 come out of the stove condition when, lower furnace chamber vacuum system 9 pass through from
The cutting of body valve is contacted with lower furnace chamber 2, lower 2 vacuum breaker of furnace chamber；
9, the formwork 14 that casting manipulations are completed is taken out, cleared up by technique requirement or replaces the crucible in melting coil 5, more
The formwork 14 renewed is ready for the cycle operation of next heat；
11, repeatedly above 2~9 steps, it can be achieved that continous way production technology.
In the present invention unless specifically defined or limited otherwise, the arts such as term " setting ", " connection ", " fixation "
Language shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly, for those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. agitating type vacuum fine grain foundry furnace, which is characterized in that including upper furnace chamber (1), lower furnace chamber (2), upper furnace chamber vacuum system
(8) and lower furnace chamber vacuum system (9)；Upper furnace chamber (1) fixation is placed on lower furnace chamber (2)；Lower furnace chamber (2) the cavity warp
Isolating valve (4) is communicated with upper furnace chamber (1) cavity；The working end of the upper furnace chamber vacuum system (8) and lower furnace chamber vacuum system (9)
Mouth is communicated with the working port of upper furnace chamber (1) and lower furnace chamber (2) respectively；Formwork heater (3) are equipped in the upper furnace chamber (1)
And formwork temperature measuring equipment (10)；Melting coil (5), formwork stirring mechanism (6) and formwork lifting are equipped in the lower furnace chamber (2)
Mechanism (7)；The formwork stirring mechanism (6) is fixed at lower furnace chamber (2) bottom center region；The formwork stirring mechanism (6)
Including formwork agitation driving unit (11) and annular agitation pallet (601)；The power of formwork agitation driving unit (11) is defeated
Outlet drives annular agitation pallet (601) rotation；Formwork lifting disk is fixed at the top of the formwork elevating mechanism (7)
(701)；The formwork lifting disk (701) is equipped with formwork (14)；The minimum diameter of annular agitation pallet (601) is greater than mould
The diameter of shell lifting disk (701).
2. agitating type vacuum fine grain foundry furnace according to claim 1, it is characterised in that: the formwork stirs driving unit
(11) positive anti-switching transmission mechanism is used.
3. agitating type vacuum fine grain foundry furnace according to claim 2, it is characterised in that: the isolating valve (4) uses water
Air-cooled structure.
4. agitating type vacuum fine grain foundry furnace according to claim 3, it is characterised in that: the annular agitation pallet
(601) the tapered structure of looping pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920352229.XU CN209681125U (en) | 2019-03-20 | 2019-03-20 | Agitating type vacuum fine grain foundry furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920352229.XU CN209681125U (en) | 2019-03-20 | 2019-03-20 | Agitating type vacuum fine grain foundry furnace |
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| CN209681125U true CN209681125U (en) | 2019-11-26 |
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| CN201920352229.XU Active CN209681125U (en) | 2019-03-20 | 2019-03-20 | Agitating type vacuum fine grain foundry furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719278A (en) * | 2019-03-20 | 2019-05-07 | 沈阳真空技术研究所有限公司 | Agitating type vacuum fine grain foundry furnace and its application method |
| CN111889653A (en) * | 2020-07-27 | 2020-11-06 | 山东鑫聚龙动力科技集团有限公司 | Temperature measuring device for inner formwork of vacuum furnace |
| CN114619021A (en) * | 2020-12-11 | 2022-06-14 | 中国科学院金属研究所 | Method for casting integral equiaxial fine-grained blade disc by mechanical oscillation method |
-
2019
- 2019-03-20 CN CN201920352229.XU patent/CN209681125U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719278A (en) * | 2019-03-20 | 2019-05-07 | 沈阳真空技术研究所有限公司 | Agitating type vacuum fine grain foundry furnace and its application method |
| CN111889653A (en) * | 2020-07-27 | 2020-11-06 | 山东鑫聚龙动力科技集团有限公司 | Temperature measuring device for inner formwork of vacuum furnace |
| CN114619021A (en) * | 2020-12-11 | 2022-06-14 | 中国科学院金属研究所 | Method for casting integral equiaxial fine-grained blade disc by mechanical oscillation method |
| CN114619021B (en) * | 2020-12-11 | 2024-04-16 | 中国科学院金属研究所 | Method for casting integral equiaxial fine-grain leaf disc by mechanical oscillation method |
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