CN106604791A - Hybrid die cast system for forming component usable in gas turbine engine - Google Patents

Hybrid die cast system for forming component usable in gas turbine engine Download PDF

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Publication number
CN106604791A
CN106604791A CN201480081803.2A CN201480081803A CN106604791A CN 106604791 A CN106604791 A CN 106604791A CN 201480081803 A CN201480081803 A CN 201480081803A CN 106604791 A CN106604791 A CN 106604791A
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CN
China
Prior art keywords
die
casting
cooling
inside liner
casting system
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
CN201480081803.2A
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Chinese (zh)
Inventor
A.R.比克
A.W.詹姆斯
G.B.梅里尔
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of CN106604791A publication Critical patent/CN106604791A/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
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/229—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies with exchangeable die part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2218—Cooling or heating equipment for dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/32—Controlling equipment

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A hybrid die cast system (10) having an inner liner insert (12) that enables the configuration of a component (18) produced by the system (10) to be easily changed by changing the inner liner insert (12) without having to rework the die housing (16) is disclosed. Because the inner liner insert (12) only need be removed and replaced to change the configuration of an outer surface (18) of a component (18) produced by the system (10), the cost savings is significant in contrast with conventional systems in which the die would have to be reworked. The system (10) may also include a cooling system (20) for controlling the casting process by controlling the rate of solidification and the rate of cooling of the casting. Local heating and cooling may be used to control the microstructure, enhance mold fill and reduce casting defects such as porosity.

Description

For forming the mixing die-casting system of the part that can be used in gas-turbine unit
Technical field
The present invention relates generally to die-casting system, and relates more specifically to can be used for the turbine airfoil in turbogenerator Manufacture method.
Background technology
Die casting is traditionally been limited to the casting of non-iron class alloy, because using high-temperature materials such as such as nickel-based superalloys Extrusion process is challenging.In extrusion process, can under high pressure by motlten metal press-in die.The technique is generally used In production in enormous quantities, because there is the high original capital cost of investment being associated with manufacture mould.Most of die castings be all by Made by the such as non-iron class alloy such as zinc, aluminium and magnesium.Die casting can produce the parts of consistent size.
Using the model casting of lost wax process manufacture is generally employed to by high-temperature material systems such as such as nickel-based superalloys Into turbine part.Model casting is frequently utilized for forming the such as part such as blade (blade), stator (vane) and ring segment.It is molten Die cast is multi-functional technique, and it allows casting impossible complicated shape for traditional die casting.For fusible pattern For casting technique, internal cavity can be incorporated in turbine part by using core.
The content of the invention
A kind of mixing die-casting system is disclosed, it has inside liner insert, and it is allowed by changing inside liner insert Easily to change the construction of the part produced by system, without repairing mould housing.Because only needing to remove and change interior Lining insert come change by system produce part outer surface construction, so with the conventional system phase that must repair mould It is more notable than cost savings.System can also include mold cooling system, for by the cooldown rate of control foundry goods and solidification speed Rate is controlling casting technique.Local heating and cooling can be used for controlling microstructure, strengthen mould compactedness and reduce such as The casting flaws such as shrinkage porosite.
In at least one embodiment, mixing die-casting system can include mould housing, and it has one or more inner chambers Room and one or more inside liners in the inner chamber room of mould housing.Inside liner can have inner surface, and it has been limited Beneficial to the border of the outer surface for forming part.In at least one embodiment, the inner surface of inside liner can be configured to form combustion The part of gas eddy turbine.In another embodiment, the inner surface of inside liner can be configured to be formed and can be used for gas turbine Airfoil in engine.Mixing die-casting system can include one or more casting cores, one or more of cast mouldings Core is located in the inner cavity chamber of mould housing, to generate the internal cooling system in airfoil.Mixing die-casting system can also include one Individual or multiple interlinings, it is located between the inner surface of the inner cavity chamber in mould housing and inside liner.Interlining can be by One or more compliant material that differential expansion occurs is allowed to be formed.
Mixing die-casting system can also include what is formed by one or more the serpentine shape cooling ducts in inside liner One or more mold cooling systems.Mold cooling system can include being in what is be in fluid communication with the entrance of multiple cooling ducts One or more cooling fluid supply manifolds, and it is cold in one or more being in fluid communication with the outlet of multiple cooling ducts But fluid collection manifold.Mold cooling system can also include one or more valves, for control through mold cooling system The flowing of cooling fluid.Mixing die-casting system can also include being formed by one or more in mould housing plus the passage of heat One or more mold heating systems.
The method for disclosing the part to form gas-turbine unit.Methods described can include casting one or more Core is placed in the inner cavity chamber of mould housing, and wherein mould housing has at least one inner cavity chamber and in mould housing At least one inside liner of within the chamber, and wherein inside liner can have inner surface, and the inner surface is limited and advantageously formed The border of the outer surface of part.Methods described can also include motlten metal is ejected into the interior table by inside liner of mould housing In the inner cavity chamber that face limits.Methods described can also be included via by one or more the serpentine shape coolings in inside liner At least one mold cooling system that passage is formed, and including with the entrance of multiple cooling ducts in being in fluid communication Or one or more cooling fluids of the outlet of multiple cooling fluid supply manifolds and multiple cooling ducts in being in fluid communication are received Collection manifold and for control through the flowing of the cooling fluid of mold cooling system one or more valves controlling the cold of foundry goods But speed and freezing rate.
One advantage of mixing die-casting system is, because only needing to remove and change inside liner insert to change by system The construction of the outer surface of the part of production, so realizing significant cost section compared with it must repair the conventional system of mould About.
Another advantage of mixing die-casting system is that mold cooling system and mold heating system can be used for controlling casting unit The cooldown rate and freezing rate of part, and local heating and cooling can be used for control microstructure, strengthen mould compactedness And reduce the casting flaw such as such as shrinkage porosite.
The another advantage of mixing die-casting system is that mold cooling system and mold heating system can be used for molten alloy In being maintained at some positions of cast member, in the section that particularly mould filling otherwise may be relatively difficult.
Another advantage of mixing die-casting system is will to be reduced in conventional casting using mixing die-casting system and build formwork Required time and efforts.
These and other embodiment is discussed in more detail below.
Description of the drawings
Accompanying drawing (it is incorporated in specification and is formed a part for specification) shows the embodiment of invention disclosed herein, And the principle of the present invention is disclosed together with specification.
Fig. 1 is the sectional view for mixing die-casting system.
Fig. 2 is the sectional view of the mold cooling system and heating system for mixing die-casting system.
Fig. 3 is the sectional view of another embodiment of the mold cooling system and heating system that mix die-casting system.
Fig. 4 is the perspective view that can be used for the airfoil in gas-turbine unit.
Fig. 5 is the sectional view of airfoil shown in the Fig. 5 taken at cutting line 5-5 in the diagram.
Specific embodiment
As shown in figures 1-5, a kind of mixing die-casting system 10 is disclosed, it has inside liner insert 12, and it allows logical The construction for changing inside liner insert 12 easily to change the part 14 produced by system 10 is crossed, without repairing mould housing 16.Because only needing to remove and change the structure of outer surface 18 of the inside liner insert 12 to change the part 14 produced by system 10 Make, so cost savings are notable compared with it must repair the conventional system of mould.System 10 can also include mold cooling system 20, for controlling casting technique by controlling the cooldown rate and freezing rate of foundry goods.Local heating and cooling can be used for Control microstructure, enhancing mould compactedness simultaneously reduce the casting flaws such as such as shrinkage porosite.
In at least one embodiment, mixing die-casting system 10 can include mould housing 16, and it has at least one Chamber 22 and one or more inside liners 12 in the inner cavity chamber 22 in mould housing 16.Inside liner 12 can have interior table Face 24, it limits the border of the outer surface 18 for advantageously forming part 14.One or more inside liners 12 may be located at mould In the inner cavity chamber 22 of housing 16 so that inside liner 12 can have the border for limiting the outer surface 18 for advantageously forming part 14 Inner surface 24.In at least one embodiment, the inner surface 24 of inside liner 12 can be configured to form gas-turbine unit Part 14, as shown in Figures 4 and 5.In another embodiment, the inner surface 24 of inside liner 12 can be configured to be formed and can be used for Airfoil 28 in gas-turbine unit.Airfoil 28 can be by the hollow airfoil of the substantially elongated shape with leading edge 62 60 form, and the leading edge 62 is located at the opposite side relative with back edge 64, and by it is concave on the pressure side 66 and convex take out Inhale side 68 to separate.One or more casting cores 61 may be located in the inner cavity chamber 22 of mould housing 16, to form airfoil One or more passages of inner cooling system in 28.In at least one embodiment, as shown in fig. 1, mould housing 16 Can be formed by the first mould subshell 56 and the second mould subshell 58.
In at least one embodiment, inside liner 12 can be formed at least in part by one or more ceramic material.Pottery Porcelain liner 12 can form and can be used for producing in foundry goods because withdrawing pattern face is limited by the impossible feature of conventional die casting Formwork.Ceramic lined 12 can be formed by any appropriate mode, such as but not limited to flexible silicon technology, or increasing material manufacturing Technique, such as but not limited to 3 D-printing or selective laser melting.The construction of the inner surface 24 of ceramic lined 12 can be changed To change the construction of the outer surface 18 of the part 14 formed in mixing die-casting system 10, without repairing mould housing 16.Cause This, realizes significant cost saving.In addition, ceramic lined 12 can also be used to form part in the inner cavity chamber 22 of lining 12 Barrier is provided between 14 motlten metals, thus prevents motlten metal from contacting with mould housing 16 during casting technique.
In at least one embodiment, mixing die-casting system 10 can include one or more interlinings 30, and it is located at Between the inner surface 32 and inside liner 12 of the inner cavity chamber 22 in mould housing 16.It is swollen that interlining 30 can occur difference by permission One or more swollen compliant material is formed.Interlining 30 is adapted to any between mould housing 16 and inside liner 12 Dimensional mismatch.In at least one embodiment, intermediate layer 30 can be formed by ceramic (i.e. underdone state) is not burnt.
Mixing die-casting system 10 can also include that one or more moulds formed by one or more cooling ducts 38 are cold But system 20 or one or more heating systems 36, or both, for controlling casting technique.Heating and cooling system 20,36 Can be used for controlling the cooldown rate and freezing rate of cast member 14.Local heating and cooling can be used for controlling microcosmic knot Structure, enhancing mould compactedness simultaneously reduce the casting flaws such as such as shrinkage porosite.Heating and cooling system 20,36 can be used for closing melting Gold is maintained in some positions of cast member 14, in the section that particularly mould filling otherwise may be relatively difficult. Cooling system 20 can be configured to provide cooling to mixing die-casting system 10 via embedded cooling duct 38.In cooling system 20 The cooling fluid for using can be but be not limited to gas (such as air or other inert gases), or liquid (such as water, The liquid metal such as oil, Polymer Solution, fused salt or such as aluminium or tin).Heating and cooling system 20,36 can be used in mixing pressure Thermograde is formed in casting system 10, to promote directional solidification.
In at least one embodiment, mold cooling system 20 can be wriggled by one or more in inside liner 12 Shape cooling duct 38 is formed.One cooling duct 28 may be located at the interface between lining 12 and one or more interlinings 30 At 40, positioned at lining 12 and limit between the inner surface 32 of the inner cavity chamber 22 in mould housing 16, in inside liner 12, position In mould housing 16, in interlining 30, or their any combination.In another embodiment, mold cooling system 20 can include being in one or more the cooling fluid supply manifolds 42 being in fluid communication with the entrance 44 of multiple cooling ducts 38, And one or more the cooling fluid collecting manifolds 46 with the outlet 48 of multiple cooling ducts 38 in being in fluid communication.Can be One or more cooling circuits are formed in mold cooling system 20.In at least one embodiment, multiple cooling circuits can be with shape Into in mold cooling system 20.Mold cooling system 20 can also include one or more valves 50, for control through mould Flowing of the cooling system 20 especially through the cooling fluid of multiple cooling circuits.In at least one embodiment, mould cooling System 20 can include multiple valves, and it is configured to control cooling system 20, to be switched on and off cooling fluid, so as to allow cooling Fluid is moved according to the solidification position of liquid metal.Mold cooling system 20 can also include one or more chill plates 54. In at least one embodiment, chill plate 54 may be located in mould housing 16.
Mixing die-casting system 10 can also include being formed by one or more in mould housing 16 plus the passage of heat 52 One or more mold heating systems 36.Heating system 36 can include stratie 54, and it is implemented at least one Can be the induction coil 54 or other appropriate thermals source for strategically arranging in example.The one or more aspects of heating system 36 Such as but not limited to plus the passage of heat 52 may be located at the interface 40 between lining 12 and one or more interlinings 30, it is located at Lining 12 and limit the inner cavity chamber 22 in mould housing 16 inner surface 32 between, in inside liner 12, positioned at mould crust In body 16, in interlining 30, or their any combination.As shown in Figure 3, mixing die-casting system 10 can include mould Tool cooling system 20 and heating system 36, to mobile thermal field, and more specifically to be made by combined heating system 36 With with multiple loops of mold cooling system 20 realizing crystal growth.
Mixing die-casting system 10 can in several ways be used.In at least one embodiment, die-casting system is mixed 10 methods that can be used for being formed the part 14 of gas-turbine unit (are placed on mould including by one or more casting cores 61 In at least one inner cavity chamber 22 of tool housing 16), wherein mould housing 16 can have one or more inner cavity chamber 22 and be located at One or more inside liners 12 in the inner cavity chamber 22 of mould housing 16.Inside liner 12 can have inner surface 24, and it is limited Advantageously form the border of the outer surface 26 of part 14.Methods described can also include for motlten metal being ejected into mould housing 16 The inner cavity chamber 22 limited by the inner surface 24 of inside liner 12 in.Methods described can also be included via by positioned inside liner 12 One or more mold cooling systems 20 that interior at least one serpentine shape cooling duct 38 is formed and with multiple cooling ducts 38 Entrance 44 in be in fluid communication one or more cooling fluid supply manifolds 42 and multiple cooling ducts 38 outlet 48 at In at least one cooling fluid collecting manifold 46 being in fluid communication and for controlling the cooling fluid through mold cooling system 20 Flowing at least one valve 50 controlling the cooldown rate and freezing rate of foundry goods.
Foregoing teachings are provided for illustrating, illustrate and describing embodiments of the invention.The modification of these embodiments and Adjustment will be apparent for a person skilled in the art, and can be in the feelings without departing substantially from the scope of the present invention or spirit Make under condition.

Claims (11)

  1. It is 1. a kind of to mix die-casting system (10), it is characterised in that：
    Mould housing (16), with least one inner cavity chamber (22)；With
    At least one inside liner (12), at least one inner cavity chamber (22) of mould housing (16), wherein described at least one With inner surface (24), the inner surface (24) limits the outer surface (18) that advantageously forms part (18) to individual inside liner (12) Border.
  2. 2. mixing die-casting system (10) as claimed in claim 1, it is characterised in that at least one inside liner (12) it is interior Surface (24) can be configured to form the part (18) of gas-turbine unit.
  3. 3. mixing die-casting system (10) as claimed in claim 1, it is characterised in that at least one inside liner (12) it is interior Surface (24) can be configured to be formed the airfoil (28) that can be used in gas-turbine unit.
  4. 4. it is as claimed in claim 1 to mix die-casting system (10), further characterized in that：At least one interlining (30), positioned at the interior table of at least one of at least one inside liner (12) and the mould housing (16) inner cavity chamber (22) Between face (32).
  5. 5. mixing die-casting system (10) as claimed in claim 4, it is characterised in that the interlining (30) can be by allowing At least one compliant material that differential expansion occurs is formed.
  6. 6. it is as claimed in claim 1 to mix die-casting system (10), further characterized in that：At least one casting core (61), at least one inner cavity chamber (22) of mould housing (16).
  7. 7. it is as claimed in claim 1 to mix die-casting system (10), further characterized in that：At least one mold cooling system (20), formed by least one cooling duct (38).
  8. 8. it is as claimed in claim 7 to mix die-casting system (10), it is characterised in that at least one mold cooling system (20) formed by least one serpentine shape cooling duct (38) at least one inside liner (12).
  9. 9. it is as claimed in claim 7 to mix die-casting system (10), it is characterised in that the mold cooling system (20) is further Including with the entrance of multiple cooling ducts (38) (44) in be in fluid communication at least one cooling fluid supply manifold (42) and At least one cooling fluid collecting manifold (46) of the outlet (48) with multiple cooling ducts (38) in being in fluid communication.
  10. 10. it is as claimed in claim 7 to mix die-casting system (10), it is characterised in that the mold cooling system (20) enters one Step includes at least one valve (50), for controlling the flowing through the cooling fluid of mold cooling system (20).
  11. 11. mixing die-casting system (10) as claimed in claim 1, further characterized in that：At least one mould heating system System (36), is formed by least one in mould housing (16) plus the passage of heat (52).
CN201480081803.2A 2014-09-08 2014-09-08 Hybrid die cast system for forming component usable in gas turbine engine Pending CN106604791A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2014/054463 WO2016039715A1 (en) 2014-09-08 2014-09-08 Hybrid die cast system for forming a component usable in a gas turbine engine

Publications (1)

Publication Number Publication Date
CN106604791A true CN106604791A (en) 2017-04-26

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CN201480081803.2A Pending CN106604791A (en) 2014-09-08 2014-09-08 Hybrid die cast system for forming component usable in gas turbine engine

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US (1) US20170274447A1 (en)
EP (1) EP3191241A1 (en)
JP (1) JP2017534459A (en)
CN (1) CN106604791A (en)
WO (1) WO2016039715A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN108213381A (en) * 2018-01-22 2018-06-29 广德盛源电器有限公司 A kind of Al-alloy parts die casting machine
CN113695549A (en) * 2021-08-24 2021-11-26 张英华 Method for manufacturing pressure casting product with alloy lining or inner container

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CN109759560B (en) * 2019-04-01 2019-12-31 江苏祥和电子科技有限公司 Aluminum alloy die casting die with quick cooling function

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CN113695549A (en) * 2021-08-24 2021-11-26 张英华 Method for manufacturing pressure casting product with alloy lining or inner container

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Publication number Publication date
JP2017534459A (en) 2017-11-24
WO2016039715A1 (en) 2016-03-17
US20170274447A1 (en) 2017-09-28
EP3191241A1 (en) 2017-07-19

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Application publication date: 20170426