CN201969858U - Multifunctional vacuum centrifugal oscillation fine grain melting and casting furnace - Google Patents
Multifunctional vacuum centrifugal oscillation fine grain melting and casting furnace Download PDFInfo
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- CN201969858U CN201969858U CN2011200061613U CN201120006161U CN201969858U CN 201969858 U CN201969858 U CN 201969858U CN 2011200061613 U CN2011200061613 U CN 2011200061613U CN 201120006161 U CN201120006161 U CN 201120006161U CN 201969858 U CN201969858 U CN 201969858U
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- 238000001816 cooling Methods 0.000 claims abstract description 44
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Abstract
The utility model relates to the field of integral precision casting of cast superalloy, in particular to a multifunctional vacuum centrifugal oscillation fine grain melting and casting furnace. The multifunctional vacuum centrifugal oscillation fine grain melting and casting furnace is melting and casting equipment for preparing various precision fine grain castings by steps of induction melting, pouring, rotating oscillation and rapid cooling and solidification under a vacuum condition. The difficult problem that in the prior art, the large-sized complex thin-wall fine grain casting cannot be prepared by a kinetic method is solved. The melting and casting furnace is provided with a vacuum system, a melting furnace, a heat preserving furnace, a rotating mechanism, a water cooling turntable, a gas cooling ring and a lifting mechanism. The melting furnace is positioned above the heat preserving furnace. A shell mold is arranged on the water cooling turntable in the heat preserving furnace. The bottom of the water cooling turntable is connected with the rotating mechanism. The gas cooling ring is arranged below the water cooling turntable. The melting furnace and the heat preserving furnace are connected with the vacuum system. The equipment can be used for producing engine crankcase fine grain structural parts in the fields of aviation, aerospace, a burning machine and the like, plate integrated fine grain casting turbines and other precision castings for fine grain casting.
Description
Technical field
The utility model relates to the whole smart casting of cast superalloy field, be specially the thin brilliant casting furnace of the centrifugal vibration of a kind of multifunctional vacuum, it is to adopt induction melting, cast, rotational oscillation, quick cooled and solidified to prepare the smelting-casting equipment of the thin brilliant foundry goods of multiple precision under vacuum.
Background technology
The whole smart casting technology of cast superalloy is aviation, a significant development of space flight casting industry, use more and more wider, turbine rotor from integral body, the guider impeller, nozzle ring is to baroque diffusion casing, the diffusion casing, combustion box, turbine case and fan frame etc. all can be by the hot investment casting moulding. and increasing whole precision casting is used to replace forging, forge casting sub-assembly and machining sub-assembly, not only can improve the serviceability of parts, effectively reduce the weight of engine, improve the serviceability and the reliability of engine, and can enhance productivity greatly, reduce manufacturing cost, bring fairly obvious economic benefit.
From the eighties in last century, abroad development and the application about the whole smart casting technology of high temperature alloy is very rapid, the whole precision castings of large thin-wall that has occurred high temperature alloys such as Ni-based, cobalt-based, titanium base in succession, the appearance and size of this class precision castings is generally all greater than 300mm, typical minimum wall thickness (MINI W.) can reach 1.25mm, the maximum weight of cast can reach 720kg, and crystallite dimension controlled, obtained fine grained texture, be aided with hot isostatic pressing technique, the low-cycle fatigue life of foundry goods is significantly improved.
The development of thin brilliant precision casting technology has further improved the serviceability of monoblock cast large thin-wall structural member, wherein, improvement to middle low temperature (≤760 ℃) serviceability of high temperature alloy foundry goods is particularly evident, on the one hand the low-cycle fatigue life of foundry goods is enhanced about more than once, and can effectively improve the uniformity of alloy structure and composition, reduce the decentralization of mechanical castings data, thereby improve the design tolerances of foundry goods and the reliability of use.
As shown in Figure 1, the existing mechanical thin brilliant foundry furnace that vibrates mainly comprises: melting induction coil 11, melting kettle 12, molten metal 13, cover plate 14, shell mould 15, heating crucible 16, hydraulic vibration unit 17, heat insulation layer 18, heat induced coil 19 etc., shell mould 15 is arranged in the heating crucible 16, heating crucible 16 is provided with heat insulation layer 18, heat induced coil 19, heat insulation layer 18 is in heat induced coil 19 inboards, heating crucible 16 tops are provided with cover plate 14, and heating crucible 16 bottoms are provided with hydraulic vibration unit 17; The top of heating crucible 16 is provided with melting kettle 12, and melting kettle 12 is provided with melting induction coil 11, and the molten metal 13 in the melting kettle 12 is corresponding with shell mould 15.
Be fining high temperature alloy crystal grain, external thermal control method, chemical method and the KINETIC METHOD thinning methods such as (Mechanical Method) of successively having developed.The characteristics of thermal control method are to reduce refining temperature and time, keep carbide, reduce pouring temperature simultaneously, quicken cooling, limit grain growth; Chemical method is to add the solid nucleating agent in melt, forms a large amount of heterogeneous body nucleus; The dynamics rule is to stir melt, crystal grain thinning by rotation casting mold, mechanical oscillation.But above-mentioned process all exists certain limitation and defective on using, as its shortcoming of thermal control method is to be difficult for getting rid of bubble and being mingled with, the foundry goods degree of purity is reduced, cast big part difficulty, because extremely low overtemperature and strict temperature control have limited its application.During Mechanical Method is used, utilize mechanical force to be difficult to make bath movement evenly and limited by component shape.The chemical method shortcoming is restive chemical analysis, and nucleating agent easily forms oxide and causes tired source.
The utility model content
The purpose of this utility model is to be to provide the centrifugal vibration of a kind of multifunctional vacuum thin brilliant casting furnace, solves the KINETIC METHOD that can not rely on that exists in the prior art and prepares the difficult problem of the thin brilliant foundry goods of large-scale complex thin-wall.
The technical solution of the utility model:
The thin brilliant casting furnace of the centrifugal vibration of a kind of multifunctional vacuum, this casting furnace is provided with vacuum system, smelting furnace, holding furnace, rotating mechanism, water-cooled rotating disk, air cooling ring and elevating mechanism, smelting furnace is positioned at the top of holding furnace, shell mould places on the water-cooled rotating disk of holding furnace, water-cooled rotating disk bottom connects rotating mechanism, water-cooled rotating disk below is provided with the air cooling ring, and smelting furnace, holding furnace are connected with vacuum system.
The thin brilliant casting furnace of the centrifugal vibration of described multifunctional vacuum, vacuum system, elevating mechanism, smelting furnace and holding furnace all are arranged in the body of heater.
The thin brilliant casting furnace of the centrifugal vibration of described multifunctional vacuum, body of heater top are provided with the reinforced temp measuring system of capstan head.
The thin brilliant casting furnace of the centrifugal vibration of described multifunctional vacuum, the water-cooled rotating disk is communicated with water-cooling system, and water-cooling system is passed through the water-cooled rotating disk to the shell mould water-cooled.
The thin brilliant casting furnace of the centrifugal vibration of described multifunctional vacuum, the air cooling ring is connected with air cooling system, air cooling system by the air cooling ring to shell mould air cooling.
The thin brilliant casting furnace of the centrifugal vibration of described multifunctional vacuum, holding furnace, air cooling ring are connected with elevating mechanism respectively, and elevating mechanism is to holding furnace and air cooling ring lifting control.
The thin brilliant casting furnace of the centrifugal vibration of described multifunctional vacuum, the rotating mechanism that water-cooled rotating disk bottom connects is a rotational oscillation mechanism, realizes the positive and negative rotation of water-cooled chassis adjustable-speed and can suddenly stop reverse rotation.
The beneficial effects of the utility model are:
1, the thin brilliant casting furnace of the centrifugal vibration of the utility model multifunctional vacuum is provided with water-cooled chassis and the liftable holding furnace of graphite eddy-current heating, air cooling ring, is used for the core components such as induction coil of melting, belong to KINETIC METHOD and thermodynamics and send out the thin crystal preparation method that combines, can be used for preparing the thin brilliant precision casting of casing class of Aeronautics and Astronautics engine, combustion machine etc., the incorporate thin brilliant hot investment casting turbine of disc that can also be used for engine, and the preparation of some other thin brilliant precision casting.
2, the utility model water-cooled chassis when rotation adjustable-speed and can the rotating rotation, and can be in rotation anxious stopping, reverse rotation again, thus under centrifugal vibration fining high temperature alloy crystal grain.
Description of drawings
Fig. 1 is the existing mechanical thin brilliant foundry furnace structural representation that vibrates.Among the figure, 11 melting induction coils; 12 melting kettles; 13 molten metals; 14 cover plates; 15 shell moulds; 16 heating crucibles; 17 hydraulic vibration unit; 18 heat insulation layers; 19 heat induced coils.
Fig. 2 is the thin brilliant casting furnace structural representation of the centrifugal vibration of the utility model.Among the figure, 1 body of heater; 2 vacuum systems; 3 elevating mechanisms; 4 smelting furnaces; The 5 capstan heads temp measuring system that feeds in raw material; 6 holding furnaces; 7 air cooling systems; 8 rotating mechanisms (rotational oscillation mechanism); 9 water-cooled rotating disks; 10 air cooling rings.
The specific embodiment
As shown in Figure 2, the thin brilliant casting furnace of the centrifugal vibration of the utility model multifunctional vacuum mainly comprises: body of heater 1, vacuum system 2, elevating mechanism 3, smelting furnace 4, the reinforced temp measuring system 5 of capstan head, holding furnace 6, air cooling system 7, rotating mechanism 8, water-cooled rotating disk 9, air cooling ring 10 etc., and concrete structure is as follows:
Vacuum system 2, elevating mechanism 3, smelting furnace 4, holding furnace 6 are set in the body of heater 1, and body of heater 1 top is provided with the reinforced temp measuring system 5 of capstan head, and smelting furnace 4 is positioned at the top of holding furnace 6; Shell mould places on the water-cooled rotating disk 9 of holding furnace 6, and water-cooled rotating disk 9 is communicated with water-cooling system, and water-cooling system realizes water-cooled by 9 pairs of shell moulds of water-cooled rotating disk; Water-cooled rotating disk 9 belows are provided with air cooling ring 10, and air cooling ring 10 is connected with air cooling system 7, and air cooling system 7 is realized air cooling by 10 pairs of shell moulds of air cooling ring; Holding furnace 6, air cooling ring 10 are connected with elevating mechanism 3 respectively, and elevating mechanism 3 is realized holding furnace 6 and air cooling ring 10 liftings control.Water-cooled rotating disk 9 bottoms connect rotating mechanism 8, realize the positive and negative rotation of water-cooled chassis adjustable-speed and can suddenly stop reverse rotation.Smelting furnace 4, holding furnace 6 are connected with vacuum system 2, are implemented in induction melting under the vacuum.
The utility model complete set of equipments partly is made up of workbench, body of heater, smelting furnace, holding furnace, rotating disk tractor, coil elevating mechanism, vacuum system, feeding device, temperature measuring equipment, hydraulic system, melting power supply, insulation power supply and switch board etc.Wherein,
Casting furnace adopts vertical structure, and body of heater 1 is placed on the ground, and body of heater 1 bottom tractor is stretched in melt pit, and the oily booster pump in the vacuum system 2 also is contained in the melt pit, and sliding vane rotary pump and lobe pump in the vacuum system 2 place on the ground.
Body of heater 1 (being vacuum chamber) adopts U type structure, the water-jacket typ cooling, and the inwall outer wall is corrosion resistant plate, adds honeycomb and T type muscle for strengthening the rigidity shell, and material alloying device, temperature measuring equipment are equipped with in the top.The electricity that advances of smelting furnace and holding furnace is introduced by the side, and the elevating mechanism of holding furnace and the tractor of rotating disk are introduced by the bottom.The side also has 2 standby holes and 6 pairs of thermocouples are introduced the hand seat, can survey 6 temperature simultaneously.Two observation windows are arranged at the body of heater top, can observe melting and casting situation.
Smelting furnace 4 adopts graphite induction heating type holding furnace, links to each other with the smelting furnace power supply by the rotating shaft of sidewall of the furnace body and the water-cooled cable outside the stove.Control crank is installed in fire door upper left side nearby, finishes the coil action of verting with the chain transmission.Changeing casting is to realize by handle in the rotating shaft or hydraulic cylinder.
Holding furnace 6 adopts graphite induction heating type holding furnace, is installed on the holding furnace elevating mechanism, is connected with the holding furnace power supply by water-cooled cable and the outer busbar of body of heater.Can realize being incubated spun casting with it, when need cooled off fast, holding furnace can rise, away from foundry goods.The holding furnace bottom is connected with the air cooling ring, with holding furnace one lifting, can cool off fast shell mould.
Material alloying, temperature measuring equipment (capstan head feed in raw material temp measuring system 5) are installed in furnace roof portion, and pivoted arm is with the lifting of hand-hydraulic jack, and manually the lifting of straight cutting thermometric is by the rack-and-pinion transmission.
The high temperature alloy of smelting furnace fusing can be cast straight in the formwork of holding furnace, and formwork is fixed on the water-cooled rotating disk.The water-cooled disk diameter is Φ 390mm, and the speed of mainshaft is that 0-300r/min is adjustable, and rotating commutation fast, and to stop growing up of casting crystalline grain, main shaft is hollow water-cooling structure.
Hydraulic system is the power source of holding furnace rotating disk tractor, and the hydraulic oil of each oil cylinder and hydraulic motor is provided by it.
The main pump of vacuum system 2 is a Z-400 oil booster pump, and a prime ZJ-300 lobe pump of series connection and a 2X-70 sliding vane rotary pump also are equipped with a 2X-15 sliding vane rotary pump and make auxiliary pump and linked by vacuum pipe and valve, and be furnished with auxiliary equipments such as vacuum meter, pressure vacuum gauge.
Body of heater all adopts water-jacket typ cooling means steel pipe central water supply, concentrates backwater, and pressure switch is housed in the system, to realize cutting off the water warning.
Pneumatic system is provided with compositions such as source of the gas, pneumatic, pipeline, valve, and the source of the gas specification is 0.4～0.6MPa.
The power supply of smelting furnace and automatically controlled part adopt 100KW, 400HZ thyristor intermediate frequency electric source, and the power supply of holding furnace and automatically controlled part adopt 100KW, 2500HZ thyristor intermediate frequency electric source.On the switch board intelligent temperature measuring gauge and temperature control instrument can be housed, can and realize temperature automatically controlled the smelting furnace thermometric to holding furnace.Can also be provided with large-scale analog board on the switch board, can show the working condition of stove, and by relevant button vacuum system exhaust, holding furnace lifting, ingot mould rotation, smelting furnace and holding furnace be heated etc. and manually to control, the stokehold also is provided with control box.Power supply and automatically controlled part can also have cut off the water supply, sound and light of alarm such as under-voltage, overtemperature, overcurrent.
Embodiment 1
At first, make barrel-shaped thin-walled shell put into the holding furnace of the thin brilliant casting furnace of the centrifugal vibration of the utility model multifunctional vacuum, be warming up to 1200 ℃ of insulations 0.5 hour, (built-in crucible) melting high temperature alloy K18C alloy in the melting induction coil then, alloy melting is after 1500 ℃ of refinings 10 minutes, thermometric is 1480 ℃ of cast down, cast back molten steel left standstill 20 seconds, start the rotational oscillation mechanism of the thin brilliant casting furnace of the centrifugal vibration of multifunctional vacuum, just changeing the anxious backward rotation again of stopping after 3 seconds with 60 rev/mins rotating speeds, and then backward rotation is moved and so forth, reduce to below 1000 ℃ until the holding furnace temperature and to stop operating, wait is solidified, when holding furnace is reduced to below 200 ℃, open vent valve, open fire door and take out foundry goods.Utilize the precision casting of thin brilliant smelting-casting equipment cast of the present utility model, through measuring average grain diameter at 1mm, and the cylindrical casting of common smelting-casting equipment cast, its average grain diameter is at 5mm, and the thin brilliant method effect of dynamics that visible the utility model equipment is realized is still clearly.
Claims (7)
1. thin brilliant casting furnace of the centrifugal vibration of multifunctional vacuum, it is characterized in that: this casting furnace is provided with vacuum system, smelting furnace, holding furnace, rotating mechanism, water-cooled rotating disk, air cooling ring and elevating mechanism, smelting furnace is positioned at the top of holding furnace, shell mould places on the water-cooled rotating disk of holding furnace, water-cooled rotating disk bottom connects rotating mechanism, water-cooled rotating disk below is provided with the air cooling ring, and smelting furnace, holding furnace are connected with vacuum system.
2. according to the thin brilliant casting furnace of the centrifugal vibration of the described multifunctional vacuum of claim 1, it is characterized in that: described vacuum system, elevating mechanism, smelting furnace and holding furnace all are arranged in the body of heater.
3. according to the thin brilliant casting furnace of the centrifugal vibration of the described multifunctional vacuum of claim 2, it is characterized in that: the body of heater top is provided with the reinforced temp measuring system of capstan head.
4. according to the thin brilliant casting furnace of the centrifugal vibration of the described multifunctional vacuum of claim 1, it is characterized in that: the water-cooled rotating disk is communicated with water-cooling system.
5. according to the thin brilliant casting furnace of the centrifugal vibration of the described multifunctional vacuum of claim 1, it is characterized in that: the air cooling ring is connected with air cooling system.
6. according to the thin brilliant casting furnace of the centrifugal vibration of the described multifunctional vacuum of claim 1, it is characterized in that: holding furnace, air cooling ring are connected with elevating mechanism respectively.
7. according to the thin brilliant casting furnace of the centrifugal vibration of the described multifunctional vacuum of claim 1, it is characterized in that: the rotating mechanism that water-cooled rotating disk bottom connects is a rotational oscillation mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200061613U CN201969858U (en) | 2011-01-11 | 2011-01-11 | Multifunctional vacuum centrifugal oscillation fine grain melting and casting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200061613U CN201969858U (en) | 2011-01-11 | 2011-01-11 | Multifunctional vacuum centrifugal oscillation fine grain melting and casting furnace |
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| CN201969858U true CN201969858U (en) | 2011-09-14 |
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| CN2011200061613U Expired - Lifetime CN201969858U (en) | 2011-01-11 | 2011-01-11 | Multifunctional vacuum centrifugal oscillation fine grain melting and casting furnace |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581245A (en) * | 2011-01-11 | 2012-07-18 | 中国科学院金属研究所 | Multifunctional vacuum centrifugal oscillating fine grain melting and casting furnace |
| CN102796944A (en) * | 2012-09-14 | 2012-11-28 | 黄山学院 | Method for casting mine hammer |
| CN103231017A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | High-temperature alloy complex thin-wall casting precise casting device |
| CN107186193A (en) * | 2016-03-14 | 2017-09-22 | 上海日立电器有限公司 | Vacuum drying oven centrifugal casting technique and its equipment |
| CN107962172A (en) * | 2018-01-18 | 2018-04-27 | 沈阳真空技术研究所有限公司 | Vacuum precision foundry furnace equipped with built-in formwork transmission system |
| CN108817356A (en) * | 2018-07-25 | 2018-11-16 | 广东嘉铭智能科技有限公司 | A kind of smelting-casting equipment |
| CN109396376A (en) * | 2019-01-08 | 2019-03-01 | 广州市瑞晖铸造机械有限公司 | A kind of efficient centrifugal casting machine |
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2011
- 2011-01-11 CN CN2011200061613U patent/CN201969858U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581245A (en) * | 2011-01-11 | 2012-07-18 | 中国科学院金属研究所 | Multifunctional vacuum centrifugal oscillating fine grain melting and casting furnace |
| CN102581245B (en) * | 2011-01-11 | 2014-05-14 | 中国科学院金属研究所 | Multifunctional vacuum centrifugal oscillating fine grain melting and casting furnace |
| CN102796944A (en) * | 2012-09-14 | 2012-11-28 | 黄山学院 | Method for casting mine hammer |
| CN103231017A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | High-temperature alloy complex thin-wall casting precise casting device |
| CN103231017B (en) * | 2013-04-07 | 2015-10-28 | 上海交通大学 | A kind of high temperature alloy complex thin wall castings hot investment casting device |
| CN107186193A (en) * | 2016-03-14 | 2017-09-22 | 上海日立电器有限公司 | Vacuum drying oven centrifugal casting technique and its equipment |
| CN107962172A (en) * | 2018-01-18 | 2018-04-27 | 沈阳真空技术研究所有限公司 | Vacuum precision foundry furnace equipped with built-in formwork transmission system |
| CN107962172B (en) * | 2018-01-18 | 2024-02-09 | 沈阳真空技术研究所有限公司 | Vacuum precision casting furnace with built-in mould shell transmission system |
| CN108817356A (en) * | 2018-07-25 | 2018-11-16 | 广东嘉铭智能科技有限公司 | A kind of smelting-casting equipment |
| CN108817356B (en) * | 2018-07-25 | 2020-04-07 | 广东嘉铭智能科技有限公司 | Casting equipment |
| CN109396376A (en) * | 2019-01-08 | 2019-03-01 | 广州市瑞晖铸造机械有限公司 | A kind of efficient centrifugal casting machine |
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Owner name: SHENYANG ZHONGKE SANNAI NEW MATERIALS CO., LTD. Free format text: FORMER OWNER: METALLIC INST., CHINESE ACADEMY OF SCIENCES Effective date: 20140217 |
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Free format text: CORRECT: ADDRESS; FROM: 110016 SHENYANG, LIAONING PROVINCE TO: 110179 SHENYANG, LIAONING PROVINCE |
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Effective date of registration: 20140217 Address after: Hunnan New Century Road 110179 Shenyang city of Liaoning Province, No. 8 8-3 Patentee after: Shenyang Zhongke three new materials Limited by Share Ltd Address before: 110016 Shenyang, Liaoning Province Cultural Road, No. 72, Shenhe Patentee before: Institute of metal research, Chinese Academy of Sciences |
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Granted publication date: 20110914 Effective date of abandoning: 20140514 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110914 Effective date of abandoning: 20140514 |
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