CN107398532A - The turbine technical field of producing poured into a mould using split crucible formwork - Google Patents

The turbine technical field of producing poured into a mould using split crucible formwork Download PDF

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Publication number
CN107398532A
CN107398532A CN201710652535.0A CN201710652535A CN107398532A CN 107398532 A CN107398532 A CN 107398532A CN 201710652535 A CN201710652535 A CN 201710652535A CN 107398532 A CN107398532 A CN 107398532A
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CN
China
Prior art keywords
wax
dewaxing
pattern
formwork
crucible
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
CN201710652535.0A
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Chinese (zh)
Inventor
张云飞
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.)
Wuxi Ruichang Precision Casting Co Ltd
Original Assignee
Wuxi Ruichang Precision Casting 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 Wuxi Ruichang Precision Casting Co Ltd filed Critical Wuxi Ruichang Precision Casting Co Ltd
Priority to CN201710652535.0A priority Critical patent/CN107398532A/en
Publication of CN107398532A publication Critical patent/CN107398532A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/02Sand moulds or like moulds for shaped castings
    • B22C9/04Use of lost patterns
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings
    • B22C9/28Moulds for peculiarly-shaped castings for wheels, rolls, or rollers

Abstract

The present invention relates to a kind of turbine production technology, particularly a kind of turbine production technology poured into a mould using split crucible formwork, comprise the following steps:Step 1:The clamping tooling of split crucible and disk are threadedly secured on split crucible gate stick by rotation, the split crucible has added bowl-type cylinder for the bottom of the gate stick of common crucible;Step 2:Wax-pattern is welded on cast gate with electric iron, wax-pattern is welded when welding according to the position location on gate stick, welds adjacent wax-pattern, leaf position must stagger;Step 3:Whether the wax-pattern tree that inspection group welds has wax bits, and whether wax-pattern is intact, and whether the wax-pattern quantity for the wax-pattern group number that group is soldered has Short Item, then carries out wax-pattern cleaning;Step 4:Formwork sabot is subjected to coating;Step 5:Formwork is subjected to dewaxing treatment;Step 6. is poured into a mould.A kind of turbine production technology using the cast of split crucible formwork provided by the invention reduces cost, improves product qualification rate.

Description

The turbine technical field of producing poured into a mould using split crucible formwork
The present invention relates to a kind of turbine production technology, particularly a kind of turbine using the cast of split crucible formwork produces work Skill.
Background technology
Turbocharger is actually a kind of air compressor, increases air inflow by compressed air.It is to utilize hair The waste gas inertia impulsive force of motivation discharge promotes the turbine in turbine room, and turbine drives coaxial impeller again, impeller force feed is by sky The air that air cleaner pipeline is sent, it is allowed to supercharging and enters cylinder.When engine speed increases, the waste gas velocity of discharge turns with turbine Speed also synchronous increase, impeller just compress more air and enter cylinder, and pressure and the density increase of air can burn more Fuel, the corresponding rotating speed for increasing fuel quantity and adjusting engine, it is possible to increase the power output of engine.
Turbine in turbocharger uses crucible formwork in process of production, and integral type crucible mold of the prior art Crucible in shell will pass through 1100 DEG C of high-temperature baking with formwork, and the higher high temperature strength to crucible of temperature requires higher, More easily come off by the crucible internal walls fiber of high-temperature baking, crucible fiber is mixed into inside foundry alloy during cast, forms casting table Face and the cinder hole of inside, cinder hole percent defective improves, so as to reduce product qualification rate.
It is above-mentioned to solve it is therefore desirable to develop a kind of turbine production technology poured into a mould using split crucible formwork Technical problem.
The content of the invention
It is an object of the invention to overcome defect present in prior art, there is provided one kind is poured into a mould using split crucible formwork Turbine production technology.
The turbine production technology poured into a mould using Split-type crucible formwork, is comprised the following steps:
Step 1:The clamping tooling of split crucible and disk are threadedly secured on split crucible gate stick by rotation, described point Body crucible has added bowl-type cylinder for the bottom of the gate stick of common crucible;
Step 2:Wax-pattern is welded on cast gate with electric iron, wax-pattern is welded when welding according to the position location on gate stick Connect, weld adjacent wax-pattern, leaf position must stagger;
Step 3:Whether the wax-pattern tree that inspection group welds has wax bits, and whether wax-pattern is intact, the wax-pattern for the wax-pattern group number that group is soldered Whether quantity has Short Item, then carries out wax-pattern cleaning;
Step 4:Formwork sabot is subjected to coating;
Step 5:Formwork is subjected to dewaxing treatment;
Step 6:According to the model of cast, the height of lifting tray is adjusted, monitor system is set as 105-115KW, according to cast Model, get out the metal charge of dimension, formwork is vertically disposed on cast pallet by filling metal material into formwork, Lift pallet and close vacuum chamber, start automatic running button, completion to be cast, pallet declines automatically, removes the work of casting complete Part, formwork is put into holding furnace insulation.
Preferably, the specific embodiment of the step 5 is:
A. after dewaxing kettle is all gone well, shell mould is neatly put upside down on dewaxing special-purpose vehicle by the group number of process stipulation;
The time that dewaxes is transferred to the time of its technological requirement on the control panel according to shell mould model B,.Confirm errorless rear dewaxing Driving on special-purpose vehicle is promoted in dewaxing kettle, shuts kettle door, until dewaxing kettle prepares to start working after instruction green light lights;
C, wax has been taken off and has treated that electric bell sounds, opened the door and take out shell mould, inaccurate station has been opened during fire door in the front of burner hearth, to prevent steam fumigating Wound;
D, in whole dewaxing process, have to check for dewaxing kettle technological parameter during dewaxing every time and meet process stipulation parameter request ability The dewaxing of subsequent cycle is carried out, during specifications and models difference, it is necessary to which peace peace job instruction parameter request resets the dewaxing time;
E, shell mould must be handled with care in dewaxing process, and the impurity of shell mould wax outlet must be cleared up before dewaxing, must after the completion of dewaxing It must check whether shell mould has cracking phenomena in dewaxing process, whether de- wax is clean, and qualified shell mould is neatly placed shell mould car On, it is put into the region specified;
F, after power cut-off, by dewaxing kettle idle discharge 2 times, it is ensured that without power supply can be closed after remaining wax material in pipeline, and discharge kettle Interior sewage, carries out equipment maintenance and scene cleans.It is required that on every Mondays, Thursday to kettle filtering net and dewax special-purpose vehicle mistake Filter screen cleans 1 time;
The dewaxing technique parameter:Dewaxing temperature:170-180℃;Dewax pressure(Outer courage):8.5-10Bar;Dewax pressure(It is interior Courage):Reach 8.5Bar in 6S.
Preferably, monitor system is set as 110kw.
Preferably, finally also include in the step 5:
G. in time, it is accurate, true fill in on-the-spot record card, block with tree, and by live fixation requirements put shell mould frame, dewax it is special Car.
Compared with prior art, it is an advantage of the current invention that
1st, cost is reduced
Split crucible price is 50% or so of integral type crucible price, and we monthly crucible dosage is 20,000, using split Crucible can greatly save cost.
2nd, product qualification rate improves
2.1st, the pattern of split type formwork and crucible composite pouring, crucible only need the baking by 600 DEG C, dry internal moisture .And the crucible in integral type crucible formwork and formwork will pass through 1100 DEG C of high-temperature baking, temperature is higher to crucible High temperature strength requires higher, is more easily come off by the crucible internal walls fiber of high-temperature baking, and crucible fiber is mixed into mother during cast Inside alloy, cast(ing) surface and the cinder hole of inside are formed, cinder hole percent defective improves, so as to reduce product qualification rate.
2.1st, used crucible can not make by dewaxing process processing, steam dewaxing when split crucible formwork is poured into a mould Crucible internal walls water crucible internal walls are made moist, and cause crucible inwall fiber easily to peel off, and cast crucible fiber is mixed into inside foundry alloy, is formed Cast(ing) surface and the cinder hole of inside.Therefore, the product qualification rate ratio one by the way of split type formwork and crucible composite pouring The qualification rate of formula crucible formwork is high.
Embodiment
With reference to embodiment and comparative example, the embodiment of the present invention is further described.It is real in detail below The mode of applying is only used for clearly illustrating technical scheme, and can not be limited the scope of the invention with this.
The turbine production technology poured into a mould using Split-type crucible formwork, is comprised the following steps:
Step 1:The clamping tooling of split crucible and disk are threadedly secured on split crucible gate stick by rotation, described point Body crucible has added bowl-type cylinder for the bottom of the gate stick of common crucible;
Step 2:Wax-pattern is welded on cast gate with electric iron, wax-pattern is welded when welding according to the position location on gate stick Connect, weld adjacent wax-pattern, leaf position must stagger;
Step 3:Whether the wax-pattern tree that inspection group welds has wax bits, and whether wax-pattern is intact, the wax-pattern for the wax-pattern group number that group is soldered Whether quantity has Short Item, then carries out wax-pattern cleaning;
Step 4:Formwork sabot is subjected to coating;
Step 5:Formwork is subjected to dewaxing treatment;
Step 6:According to the model of cast, the height of lifting tray is adjusted, monitor system is set as 110KW, according to the type of cast Number, the metal charge of dimension is got out, formwork is vertically disposed on cast pallet, lifting by filling metal material into formwork Pallet closes vacuum chamber, starts automatic running button, completion to be cast, and pallet declines automatically, removes the workpiece of casting complete, will Formwork is put into holding furnace insulation.
Preferably, the specific embodiment of the step 5 is:
A. after dewaxing kettle is all gone well, shell mould is neatly put upside down on dewaxing special-purpose vehicle by the group number of process stipulation;
The time that dewaxes is transferred to the time of its technological requirement on the control panel according to shell mould model B,.Confirm errorless rear dewaxing Driving on special-purpose vehicle is promoted in dewaxing kettle, shuts kettle door, until dewaxing kettle prepares to start working after instruction green light lights;
C, wax has been taken off and has treated that electric bell sounds, opened the door and take out shell mould, inaccurate station has been opened during fire door in the front of burner hearth, to prevent steam fumigating Wound;
D, in whole dewaxing process, have to check for dewaxing kettle technological parameter during dewaxing every time and meet process stipulation parameter request ability The dewaxing of subsequent cycle is carried out, during specifications and models difference, it is necessary to which peace peace job instruction parameter request resets the dewaxing time;
E, shell mould must be handled with care in dewaxing process, and the impurity of shell mould wax outlet must be cleared up before dewaxing, must after the completion of dewaxing It must check whether shell mould has cracking phenomena in dewaxing process, whether de- wax is clean, and qualified shell mould is neatly placed shell mould car On, it is put into the region specified;
F, after power cut-off, by dewaxing kettle idle discharge 2 times, it is ensured that without power supply can be closed after remaining wax material in pipeline, and discharge kettle Interior sewage, carries out equipment maintenance and scene cleans.It is required that on every Mondays, Thursday to kettle filtering net and dewax special-purpose vehicle mistake Filter screen cleans 1 time;
G. in time, it is accurate, true fill in on-the-spot record card, block with tree, and by live fixation requirements put shell mould frame, dewax it is special Car.
The dewaxing technique parameter:Dewaxing temperature:170-180℃;Dewax pressure(Outer courage):8.5-10Bar;Dewaxing pressure Power(Inner bag):Reach 8.5Bar in 6S.
Compared with prior art, it is an advantage of the current invention that
1st, cost is reduced
Split crucible price is 50% or so of integral type crucible price, and we monthly crucible dosage is 20,000, using split Crucible can greatly save cost.
2nd, product qualification rate improves
2.1st, the pattern of split type formwork and crucible composite pouring, crucible only need the baking by 600 DEG C, dry internal moisture .And the crucible in integral type crucible formwork and formwork will pass through 1100 DEG C of high-temperature baking, temperature is higher to crucible High temperature strength requires higher, is more easily come off by the crucible internal walls fiber of high-temperature baking, and crucible fiber is mixed into mother during cast Inside alloy, cast(ing) surface and the cinder hole of inside are formed, cinder hole percent defective improves, so as to reduce product qualification rate.
2.1st, used crucible can not make by dewaxing process processing, steam dewaxing when split crucible formwork is poured into a mould Crucible internal walls water crucible internal walls are made moist, and cause crucible inwall fiber easily to peel off, and cast crucible fiber is mixed into inside foundry alloy, is formed Cast(ing) surface and the cinder hole of inside.Therefore, the product qualification rate ratio one by the way of split type formwork and crucible composite pouring The qualification rate of formula crucible formwork is high.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications Also it should be regarded as protection scope of the present invention.

Claims (4)

1. using the turbine production technology of Split-type crucible formwork cast, it is characterised in that comprise the following steps:
Step 1:The clamping tooling of split crucible and disk are threadedly secured on split crucible gate stick by rotation, described point Body crucible has added bowl-type cylinder for the bottom of the gate stick of common crucible;
Step 2:Wax-pattern is welded on cast gate with electric iron, wax-pattern is welded when welding according to the position location on gate stick Connect, weld adjacent wax-pattern, leaf position must stagger;
Step 3:Whether the wax-pattern tree that inspection group welds has wax bits, and whether wax-pattern is intact, the wax-pattern for the wax-pattern group number that group is soldered Whether quantity has Short Item, then carries out wax-pattern cleaning;
Step 4:Formwork sabot is subjected to coating;
Step 5:Formwork is subjected to dewaxing treatment;
Step 6:According to the model of cast, the height of lifting tray is adjusted, monitor system is set as 105-115KW, according to cast Model, get out the metal charge of dimension, formwork is vertically disposed on cast pallet by filling metal material into formwork, Lift pallet and close vacuum chamber, start automatic running button, completion to be cast, pallet declines automatically, removes the work of casting complete Part, formwork is put into holding furnace insulation.
2. as claimed in claim 1 using the turbine production technology of Split-type crucible formwork cast, it is characterised in that the step Rapid 5 specific embodiment is:
A. after dewaxing kettle is all gone well, shell mould is neatly put upside down on dewaxing special-purpose vehicle by the group number of process stipulation;
The time that dewaxes is transferred to the time of its technological requirement on the control panel according to shell mould model B,;
Confirm it is errorless after on dewaxing special-purpose vehicle driving promote dewaxing kettle in, shut kettle door, until dewaxing kettle prepare instruction it is green Lamp is started working after lighting;
C, wax has been taken off and has treated that electric bell sounds, opened the door and take out shell mould, inaccurate station has been opened during fire door in the front of burner hearth, to prevent steam fumigating Wound;
D, in whole dewaxing process, have to check for dewaxing kettle technological parameter during dewaxing every time and meet process stipulation parameter request ability The dewaxing of subsequent cycle is carried out, during specifications and models difference, it is necessary to which peace peace job instruction parameter request resets the dewaxing time;
E, shell mould must be handled with care in dewaxing process, and the impurity of shell mould wax outlet must be cleared up before dewaxing, must after the completion of dewaxing It must check whether shell mould has cracking phenomena in dewaxing process, whether de- wax is clean, and qualified shell mould is neatly placed shell mould car On, it is put into the region specified;
F, after power cut-off, by dewaxing kettle idle discharge 2 times, it is ensured that without power supply can be closed after remaining wax material in pipeline, and discharge kettle Interior sewage, carries out equipment maintenance and scene cleans;It is required that on every Mondays, Thursday to kettle filtering net and dewax special-purpose vehicle mistake Filter screen cleans 1 time;
The dewaxing technique parameter:Dewaxing temperature:170-180℃;Dewax pressure(Outer courage):8.5-10Bar;Dewax pressure(It is interior Courage):Reach 8.5Bar in 6S.
3. as claimed in claim 2 using the turbine production technology of Split-type crucible formwork cast, it is characterised in that melting work( Rate is set as 110kw.
4. as claimed in claim 2 or claim 3 using the turbine production technology of Split-type crucible formwork cast, it is characterised in that institute Stating in step 5 finally also includes:
G. in time, it is accurate, true fill in on-the-spot record card, block with tree, and by live fixation requirements put shell mould frame, dewax it is special Car.
CN201710652535.0A 2017-08-02 2017-08-02 The turbine technical field of producing poured into a mould using split crucible formwork Pending CN107398532A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109014051A (en) * 2018-09-26 2018-12-18 天长市兴宇铸造有限公司 A kind of environmental protection recoverable version steam dewaxing method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05253640A (en) * 1992-03-11 1993-10-05 Mitsubishi Materials Corp Assembly for precision casting
CN1154882A (en) * 1996-01-17 1997-07-23 祁殿立 Section mould assembly of closed impeller and method for making sand mould of closed impeller by said assembly
CN102717030A (en) * 2012-06-14 2012-10-10 西安西工大超晶科技发展有限责任公司 Precision casting method for thick-wall base aluminium alloy casting
CN202621834U (en) * 2012-05-04 2012-12-26 宁波通达精密铸造有限公司 Gate stick for investment casting
CN203737939U (en) * 2013-11-14 2014-07-30 黄冈市钰丰精密五金有限公司 Side injection gate stick of small stop valve
CN204413057U (en) * 2014-12-31 2015-06-24 鹰普航空零部件(无锡)有限公司 Model casting is clear cup cover plate easily
CN205074528U (en) * 2015-09-18 2016-03-09 无锡市华佩机械制造有限公司 Novel pouring basin structure
CN105414484A (en) * 2015-11-24 2016-03-23 怀宁县群力汽车配件有限公司 Fired mold precise casting technology for producing automobile H-shaped front shaft
CN105953583A (en) * 2016-07-06 2016-09-21 上海华培动力科技有限公司 Cambered crucible used for high-temperature alloy special casting and preparation method thereof
CN106914587A (en) * 2017-01-10 2017-07-04 浙江美德光学有限公司 A kind of processing technology of precision-investment casting housing

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05253640A (en) * 1992-03-11 1993-10-05 Mitsubishi Materials Corp Assembly for precision casting
CN1154882A (en) * 1996-01-17 1997-07-23 祁殿立 Section mould assembly of closed impeller and method for making sand mould of closed impeller by said assembly
CN202621834U (en) * 2012-05-04 2012-12-26 宁波通达精密铸造有限公司 Gate stick for investment casting
CN102717030A (en) * 2012-06-14 2012-10-10 西安西工大超晶科技发展有限责任公司 Precision casting method for thick-wall base aluminium alloy casting
CN203737939U (en) * 2013-11-14 2014-07-30 黄冈市钰丰精密五金有限公司 Side injection gate stick of small stop valve
CN204413057U (en) * 2014-12-31 2015-06-24 鹰普航空零部件(无锡)有限公司 Model casting is clear cup cover plate easily
CN205074528U (en) * 2015-09-18 2016-03-09 无锡市华佩机械制造有限公司 Novel pouring basin structure
CN105414484A (en) * 2015-11-24 2016-03-23 怀宁县群力汽车配件有限公司 Fired mold precise casting technology for producing automobile H-shaped front shaft
CN105953583A (en) * 2016-07-06 2016-09-21 上海华培动力科技有限公司 Cambered crucible used for high-temperature alloy special casting and preparation method thereof
CN106914587A (en) * 2017-01-10 2017-07-04 浙江美德光学有限公司 A kind of processing technology of precision-investment casting housing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109014051A (en) * 2018-09-26 2018-12-18 天长市兴宇铸造有限公司 A kind of environmental protection recoverable version steam dewaxing method

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Application publication date: 20171128