CN103862023A - Casting equipment - Google Patents

Casting equipment Download PDF

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Publication number
CN103862023A
CN103862023A CN201410118421.4A CN201410118421A CN103862023A CN 103862023 A CN103862023 A CN 103862023A CN 201410118421 A CN201410118421 A CN 201410118421A CN 103862023 A CN103862023 A CN 103862023A
Authority
CN
China
Prior art keywords
chamber
air
casting
furnace
molten aluminum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410118421.4A
Other languages
Chinese (zh)
Inventor
刘宏磊
李昌海
朱志华
王永宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CITIC Dicastal Co Ltd
Original Assignee
CITIC Dicastal Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CITIC Dicastal Co Ltd filed Critical CITIC Dicastal Co Ltd
Priority to CN201410118421.4A priority Critical patent/CN103862023A/en
Publication of CN103862023A publication Critical patent/CN103862023A/en
Priority to US14/670,455 priority patent/US20150273576A1/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002—Castings of light metals
    • B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D47/00—Casting plants
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/064—Obtaining aluminium refining using inert or reactive gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
    • F27B3/045—Multiple chambers, e.g. one of which is used for charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/12—Working chambers or casings; Supports therefor
    • F27B2003/125—Hearths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F27D2099/0008—Resistor heating
    • F27D2099/0011—The resistor heats a radiant tube or surface
    • F27D2099/0013—The resistor heats a radiant tube or surface immersed in the charge

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention relates to aluminum alloy refining and casting integrated equipment. Two chambers are designed in a heat preservation furnace, and are a molten aluminum adding refining chamber and a pressurizing casting chamber respectively, after molten aluminum is refined in the molten aluminum adding refining chamber, the molten aluminum cannot be in contact with air, reoxidation of the molten aluminum is avoided, and castings with the good quality can be manufactured. Meanwhile, dipping type electric heating is adopted by the heat preservation furnace, the heating efficiency and the uniformity of the molten aluminum temperature are improved, after pressure casting, the high-temperature inert gas cannot be directly discharged into the atmosphere and is discharged into a gas storage tank for purification, then the gas is reused, and the utilization rate of resources and energy is improved.

Description

A kind of Casting Equipment
Technical field
The present invention relates to a kind of alloy refining cast form equipment.
Background technology
At the beginning of the blank of low pressure casting method can be traced back to last century.Be applicable to aluminium alloy and be 1917 in France, the imagination that nineteen twenty-four proposes in Germany, but do not form large-scale industrial production.1945 years after World War II for the object of business starts to produce.The slow La Lumo in pool of the U.S. in 1958 it this has used in a large number aluminium alloy castings on the engine part of kart, and has adopted low pressure casting method.It is about nineteen fifty-seven that low pressure casting method is introduced into China, but really causes the attention of industry, starts to carry out various research, introducing equipment since about nineteen sixty.But this epoch-making process of general knowledge in the past of having broken, does not almost have rising head, there is diverse difficulty compared with the technology of the gravity metal casting of establishing as a kind of " technology ", therefore the reaction of industry is colder.Under this situation, the light-duty vehicle of 1961 becomes low pressure casting method at the practical beginning of China with the production of air cooling cylinder head.Later development is very fast, overcoming after multiple technical barriers, the advantages such as type automation are filled in high, the easy realization of stock utilization that utilizes low pressure casting method to have, and centered by automobile component, have progressively established the firm status of the main casting of light alloy casting.In the output of aluminium alloy castings, it is about 50% that low pressure casting product have accounted for, and with its huge output and good quality and be world-famous for.Product expands automobile associated components to.Particularly within 1970, widely apply on wheel hub, and along with requirements such as automotive light weight technology and raising performances, under the strict demand of the complex internal quality of in the past having no precedent and engineering properties, the use in cylinder head, cylinder block also increases gradually later.But current low pressure casting mode is after the refining of aluminium liquid, to pass through casting ladle metaideophone in low pressure casting machine holding furnace, and the aluminium liquid of holding furnace keeps temperature by the heating rod radiation heating on top.On the aluminium liquid surface of airtight holding furnace, apply low pressure dried compressed air pressure, aluminium liquid rises by soaking stalk in aluminium liquid, is pressed in the mold cavity of the top being connected with stove.Aluminium liquid is slowly to start filling from the bottom of die cavity, keeps the pressure after coagulation of a period of time.Finally when being cooled to solid-state temperature, foundry goods just can take out below foundry goods.This kind of mode is because the heating rod radiation heating on top keeps temperature, and temperature of aluminum liquid is inhomogeneous, and upper temp is higher, and bottom is on the low side; After the refining of aluminium liquid, in metaideophone process, meeting oxidation is air-breathing, weakens refining effect; What enter holding furnace is normal temperature compressed air, has increased the oxidation of aluminium liquid in holding furnace, and the high temperature air in release rear hearth directly enters atmosphere in addition, because thermal loss causes energy waste.
Summary of the invention
The object of the invention is to for the problems referred to above, the present invention proposes alloy refining low pressure casting integration apparatus.
The technical scheme that realizes above-mentioned purpose is: in air injection machine frame, mould is installed, in air injection machine frame lower, holding furnace is installed.Holding furnace is divided into liquid feeding refining chamber and two of compression casting chambers furnace chamber, and the channel connection with gate valve is arranged at two furnace chamber bottoms; Filter is housed on passage.Impregnated electric heater is equipped with respectively in two furnace chamber bottoms, and in liquid feeding refining chamber, bottom even arranges air brick, and air brick is connected with tanks of compressed inert gas by air inlet pipe, and dynamoelectric proportion valve A is housed on steel pipe; Be provided with fire door in liquid feeding refining chamber middle and upper part.Two furnace chamber tops have the steel pipe with motor-driven valve to be communicated with.Be connected with the cast gate of mould by stalk, pipette on top, compression casting chamber, screen pack is equipped with in stalk bottom.On top, compression casting chamber, the relief tube with dynamoelectric proportion valve B is housed, relief tube is connected with air accumulator.
Aluminium liquid does not contact with air after the aluminium refining of liquid feeding refining chamber, has avoided the oxidation again of aluminium liquid, can the good foundry goods of workmanship.Meanwhile, holding furnace of the present invention adopts impregnated electrical heating, improves the uniformity with the efficiency of heating surface and temperature of aluminum liquid.After die casting completes, the inert gas of high temperature does not directly enter atmosphere, again utilizes after purifying but enter air accumulator, has improved the utilization rate of natural resources and energy resources.
 
Brief description of the drawings
Fig. 1 is present device front view.
In figure: 1-air injection machine frame, 2-mould, 3-pipette, 4-holding furnace, 4-1-liquid feeding refining chamber, 4-2-compression casting chamber, 5-relief tube, 6-dynamoelectric proportion valve A, 7-stalk, 8-screen pack, 9-air inlet pipe, 10-dynamoelectric proportion valve B, 11-holding furnace is recognized seat, and 12-impregnated electricity adds device, 13-gate valve, 14-screen pack, 15-air brick, 16-fire door, 17-communicating pipe, 18-motor-driven valve.
Detailed description of the invention
By reference to the accompanying drawings the specific embodiment of the present invention is described.
As accompanying drawing, will in the air injection machine frame (1) of equipment of the present invention (Fig. 1), mould (2) be installed, in air injection machine frame (1) bottom, holding furnace (4) is installed.Holding furnace (4) is divided into liquid feeding refining chamber (4-1) and compression casting chamber (4-2) two furnace chambers, and the channel connection of band gate valve (13) is arranged at two furnace chamber bottoms; Filter (14) is housed on passage.Three impregnated electric heaters (12) are equipped with respectively in two furnace chamber bottoms, in liquid feeding refining chamber (4-1), bottom even is equipped with three air bricks (15), air brick (15) is connected with tanks of compressed inert gas by air inlet pipe (9), in air inlet pipe (9), dynamoelectric proportion valve B(10 is housed).Be provided with fire door (16) in liquid feeding refining chamber (4-1) middle and upper part.Two furnace chamber tops have the communicating pipe (17) of band motor-driven valve (18) to be communicated with.Be connected with the cast gate of mould (2) by stalk (7), pipette (3) on top, compression casting chamber (4-2), screen pack (8) is equipped with in stalk (7) bottom.Band dynamoelectric proportion valve A(6 is housed on top, compression casting chamber (4-2)) relief tube (5), relief tube (5) is connected with air accumulator.
The liquid feeding refining chamber (4-1) that aluminium liquid is injected into holding furnace (4) by fire door (16), closes fire door tight.Open gate valve (13) and dynamoelectric proportion valve B(10), the aluminium liquid of liquid feeding refining chamber (4-1) flows into compression casting chamber (4-2) by passage under gravity and gas pressure.When compression casting chamber (4-2) aluminium liquid reaches supreme prescribing a time limit, closing gate valve (13) and dynamoelectric proportion valve B(10).
All valves are initially closed in work, while starting to cast, compression casting chamber (4-2) pressure curve of opening motor-driven valve (18) and set according to industrial computer is opened dynamoelectric proportion valve B(10), inert gas forms minute bubbles by air brick (15) the aluminium liquid of liquid feeding refining chamber (4-1) is carried out to refining, gas after refining is by entering compression casting chamber (4-2 chamber) communicating pipe (17), and the die cavity that the aluminium liquid of compression casting chamber (4-2) enters mould (2) along stalk (7) and pipette (3) under gas pressure fills type; Compression casting chamber (4-2) pressure reaches to be set after dwell pressure, closes motor-driven valve (18) and dynamoelectric proportion valve (10) carries out pressurize.Aluminium liquid in mould (2) is frozen into after foundry goods, open the dynamoelectric proportion valve A(6 on relief tube (5)) and motor-driven valve (18), compression casting chamber (4-2) pressure is closed dynamoelectric proportion valve (6) and the motor-driven valve (18) on relief tube (5) after reaching scheduled pressure value.Open mould (2) foundry goods is taken out, complete a casting circulation.

Claims (1)

1. a Casting Equipment, comprises casting machine, mould, it is characterized in that: mould (2) is installed in air injection machine frame (1), in air injection machine frame (1) bottom, holding furnace (4) is installed; Holding furnace (4) is divided into liquid feeding refining chamber (4-1) and compression casting chamber (4-2) two furnace chambers, and the channel connection of band gate valve (13) is arranged at two furnace chamber bottoms; Filter (14) is housed on passage; Two furnace chamber bottoms arrange respectively impregnated electric heater (12), in liquid feeding refining chamber (4-1), bottom even is equipped with air brick (15), air brick (15) is connected with tanks of compressed inert gas by air inlet pipe (9), in air inlet pipe (9), dynamoelectric proportion valve B(10 is housed); Be provided with fire door (16) in liquid feeding refining chamber (4-1) middle and upper part; Two furnace chamber tops have the communicating pipe (17) of band motor-driven valve (18) to be communicated with; Be connected with the cast gate of mould (2) by stalk (7), pipette (3) on top, compression casting chamber (4-2), screen pack (8) is equipped with in stalk (7) bottom; Band dynamoelectric proportion valve A(6 is housed on top, compression casting chamber (4-2)) relief tube (5), relief tube (5) is connected with air accumulator.
CN201410118421.4A 2014-03-27 2014-03-27 Casting equipment Pending CN103862023A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201410118421.4A CN103862023A (en) 2014-03-27 2014-03-27 Casting equipment
US14/670,455 US20150273576A1 (en) 2014-03-27 2015-03-27 Casting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410118421.4A CN103862023A (en) 2014-03-27 2014-03-27 Casting equipment

Publications (1)

Publication Number Publication Date
CN103862023A true CN103862023A (en) 2014-06-18

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ID=50901375

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410118421.4A Pending CN103862023A (en) 2014-03-27 2014-03-27 Casting equipment

Country Status (2)

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US (1) US20150273576A1 (en)
CN (1) CN103862023A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104625018A (en) * 2015-03-09 2015-05-20 江苏天宏机械工业有限公司 Three-chamber electrical heating and heat preserving furnace for continuously-pressurized molten aluminum
CN106392038A (en) * 2016-10-31 2017-02-15 攀枝花市蓝天锻造有限公司 Casting furnace
CN107470586A (en) * 2017-08-31 2017-12-15 江苏天宏机械工业有限公司 A kind of Room holding furnace of low pressure casting three with aluminium liquid suspension function
CN107952945A (en) * 2017-12-26 2018-04-24 江苏凯特汽车部件有限公司 Semi solid aluminum wheel hub rheology twin furnace apparatus for continuous formation
CN110918940A (en) * 2019-12-18 2020-03-27 内蒙古工业大学 Casting device and casting method for large-scale non-ferrous metal thin-wall structural part

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2471451Y (en) * 2001-03-20 2002-01-16 河北工业大学 Pressurized casting apparatus with vacuum and protective gas protection alternatively
US20040050525A1 (en) * 2002-09-13 2004-03-18 Kennedy Gordon F. Molten metal pressure pour furnace and metering vavle
CN101094740A (en) * 2004-11-25 2007-12-26 株式会社东热 Holding furnace for low pressure casting
CN102463336A (en) * 2011-12-20 2012-05-23 江苏凯特汽车部件有限公司 Novel pressure device for finely turned bright aluminum alloy wheel
CN103495718A (en) * 2013-09-17 2014-01-08 浙江万丰科技开发有限公司 Continuous low pressure casting production method and device
CN203737996U (en) * 2014-03-27 2014-07-30 中信戴卡股份有限公司 Casting device

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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2471451Y (en) * 2001-03-20 2002-01-16 河北工业大学 Pressurized casting apparatus with vacuum and protective gas protection alternatively
US20040050525A1 (en) * 2002-09-13 2004-03-18 Kennedy Gordon F. Molten metal pressure pour furnace and metering vavle
CN101094740A (en) * 2004-11-25 2007-12-26 株式会社东热 Holding furnace for low pressure casting
CN102463336A (en) * 2011-12-20 2012-05-23 江苏凯特汽车部件有限公司 Novel pressure device for finely turned bright aluminum alloy wheel
CN103495718A (en) * 2013-09-17 2014-01-08 浙江万丰科技开发有限公司 Continuous low pressure casting production method and device
CN203737996U (en) * 2014-03-27 2014-07-30 中信戴卡股份有限公司 Casting device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104625018A (en) * 2015-03-09 2015-05-20 江苏天宏机械工业有限公司 Three-chamber electrical heating and heat preserving furnace for continuously-pressurized molten aluminum
CN106392038A (en) * 2016-10-31 2017-02-15 攀枝花市蓝天锻造有限公司 Casting furnace
CN107470586A (en) * 2017-08-31 2017-12-15 江苏天宏机械工业有限公司 A kind of Room holding furnace of low pressure casting three with aluminium liquid suspension function
CN107952945A (en) * 2017-12-26 2018-04-24 江苏凯特汽车部件有限公司 Semi solid aluminum wheel hub rheology twin furnace apparatus for continuous formation
CN110918940A (en) * 2019-12-18 2020-03-27 内蒙古工业大学 Casting device and casting method for large-scale non-ferrous metal thin-wall structural part

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Application publication date: 20140618