CN105583371A - Die for physically simulating casting forming process of aero-engine intermediate case piece - Google Patents
Die for physically simulating casting forming process of aero-engine intermediate case piece Download PDFInfo
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- CN105583371A CN105583371A CN201510988485.4A CN201510988485A CN105583371A CN 105583371 A CN105583371 A CN 105583371A CN 201510988485 A CN201510988485 A CN 201510988485A CN 105583371 A CN105583371 A CN 105583371A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
- B22D13/101—Moulds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/205—Metals in liquid state, e.g. molten metals
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- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a die for physically simulating the casting forming process of an aero-engine intermediate case piece. The die comprises a die unit, a fixing unit and an illumination unit. The die unit is formed by stacking a plurality of layers of die cavity structures. Inner cavities of all layers of die cavity structures communicate with one another. The shape of a cavity formed by combining the inner cavities of the multiple layers of die cavity structures is matched with the shape of the aero-engine intermediate case piece. A center sprue communicating with the bottom-layer die cavity structure is arranged in the middle portion of the die unit. A drain valve and supporting positioning columns are arranged at the bottom of the bottom-layer die cavity structure. The fixing unit comprises combined pin holes and cylindrical pins. The combined pin holes are formed by stacking coaxial pin holes in all layers of die cavity structures, and the cylindrical pins penetrate the combined pin holes. The illumination unit comprises a round tray and a power supply device installed on the bottom face of the round tray. The round tray is connected to the bottom of the bottom-layer die cavity structure, and a plurality of LED lamp beads are evenly arranged on the top face of the round tray in an array manner. According to the die, physical simulation in multiple casting manners can be achieved, and the die has the beneficial effects of being accurate in simulation, high in adaptability and the like.
Description
Technical field
The invention belongs to cast form mould applications, more specifically, relate to a kind of physical analogy aviation and send outThe mould of motivation intermediary casing part cast form process.
Background technology
Casing part is one of key components and parts of aero-engine, in recent years due to Chinese large-sized aircraft itemObject starts, and aerial motor spare part is also constantly carried in the requirement of structure, material and manufacture viewHeight, therefore, also has higher requirement and challenges casing part quality. Casing part is generally applied toSupporting engines framework, often adopts thin-walled, overall revolving structure, has the inner circle of the domain and more complicatedOuter mold surface, traditional machining shaping technology is difficult to realize the processing of outer mold surface, and adopt manyWhen Shaft and NC Machining Test process technology, expense is high, and working (machining) efficiency is low, and hold facility amount is large.
Due to titanium alloy fine casting structural member manufacturing technology, there is overall structure good, quality is high, costThe advantage such as low, becomes the preferred option of manufacturing casing part. But due to casing casting structure complex appearance,The factor impacts such as casting technique, particularly in casing part mould, metal fluid filling order will cause foundry goodsPerformance generation gross differences, performance is inhomogeneous. For research metal fluid flows filling sequentially, at the sceneBefore cast experiment, must, through physical analogy casing part casting and pouring process, study its filling rule.Therefore, design a kind of physical simulation experiment that approaches true die casting process of can being convenient to accurately obtainData, again can be realistic the mould of the cast casing class wax-pattern filling rule of producing, be essential.
At present, existing patent CN202024943U discloses liquid under a kind of physical analogy vertical centrifugal field of forceState metal flow device, this device is applicable to the liquid gold of physical analogy under centrifugal force field and under gravitational fieldBelonging to filling casting mold flows and passes through dendrite feeding coagulation defect seepage flow flow process. But this device onlyFor centrifugal casting, and be unfavorable for obtaining of experiment observation and data.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of physical analogy castingMake the mould of forming process, wherein in conjunction with the design feature of aero-engine intermediary casing part self, phaseShould design the mould that is applicable to physical analogy aero-engine intermediary casing part cast form process, logicalCross three unit as research and the design of die unit, fixed cell and lighting unit concrete structure,Obtain the mould of the casing class wax-pattern filling rule that both realistic cast had been produced, can easily realize again heavilyThe casting mould that PHYSICAL MODELING OF IN under the multiple forging types such as power cast, centrifugal casting requires, canAccurately obtain the physical simulation experiment data that approach true die casting process, can be widely used in variousIn the Design of Dies of actual production aviation casing part casting.
For achieving the above object, the present invention proposes a kind of physical analogy aero-engine intermediary casing partThe mould of cast form process, is characterized in that, this mould comprises die unit, fixed cell and photographBright unit, wherein:
Described die unit is from top to bottom formed by stacking successively by multilayer film cavity configuration, and every layer of die cavityThe internal cavity of structure is interconnected, the cavity geometry that multilayer film cavity configuration internal cavity combines withThe shape of aero-engine intermediary casing part to be simulated adapts; The middle part of described die unit is provided withThe central straight running channel that connects die unit, this central straight running channel is connected with bottom mold cavity configuration; DescribedThe bottom of bottom mold cavity configuration is provided with draining valve and supporting and location post; In described every layer of mold cavity configuration, arrangeThere are multiple pin-and-holes that are distributed in mold cavity configuration outer annular edge, and pin on every layer of mold cavity configuration correspondence positionHole is coaxial;
Described fixed cell comprises combination pin-and-hole and straight pin, and described combination pin-and-hole is by each layer of mold cavity configurationOn coaxial pin-and-hole stack combinations form, described straight pin runs through described combination pin-and-hole with by described multilayerMold cavity configuration is connected and fixed;
Described lighting unit comprises round tray and electric supply installation, and described round tray is connected by screwIn the bottom of bottom mold cavity configuration, its towards be provided with in the one side of described bottom mold cavity configuration multiple allThe LED lamp pearl of even array, described electric supply installation is arranged on the another side of described round tray.
Further preferred, described multilayer film cavity configuration is specially three layers, be followed successively by top layer mold cavity configuration,Middle level mold cavity configuration and bottom mold cavity configuration, it processes by lucite.
Further preferred, described straight pin is 4, and described combination pin-and-hole is 4 groups; Described cylinderPin is coaxially installed with combination pin-and-hole, and its length equals to combine the total depth of pin-and-hole.
Further preferred, between described draining valve and bottom mold cavity configuration bottom, be fixed with boss,To increase the intensity of die unit.
Further preferred, described supporting and location post is four, is distributed in the bottom of bottom mold cavity configuration,Its bottom is insert structure, is convenient to casting platform location fixing.
Further preferred, the lighting source vertical irradiation of described lighting unit in bottom mold cavity configuration,And extended to the inside of top layer mold cavity configuration by bottom mold cavity configuration, so that observe clearly multilayer filmFluid nowed forming rule in cavity configuration.
Further preferred, described LED lamp pearl is arranged in the following way: longitudinally with equidistantly horizontalArrange, be evenly arranged on described round tray, and be centrosymmetric.
Further preferred, described multilayer film cavity configuration is by interior ring running channel, outer shroud running channel and cross gateBe interconnected.
Further preferred, cast fluid in described mould with from bottom to up, by outer shroud inwardly ring fillFull mode is carried out filling.
In general, the above technical scheme of conceiving by the present invention compared with prior art, mainPossess following technological merit:
1. the present invention has the die unit of layering mold cavity configuration by design, realizes in aero-engineThe physical analogy of Jie's casing parts of Casting forming process, not only separate but also phase interworking of each layer of mold cavity configurationClose, the machine-shaping of every layer of mold cavity configuration independence, by cooperatively interacting of each layer of mold cavity configuration, can formThe internal cavity of various structures complexity, the mould that is applicable to various actual production aviation casing part castings is establishedIn meter, simulate the filling rule of realistic true casting and pouring process, mould flexibility is strong, costLow; Simultaneously in conjunction with existing experimental technique, by the LED of uniform array is set in bottom mold cavity configuration bottomLamp pearl, solves existing high-speed photography experiment observation process light source deficiency and unsettled problem, is convenient to realityTest the collection of observation and data, Design of Dies theoretical research and actual production are had to important guidance meaningJustice.
2. the present invention arranges interior ring running channel, outer shroud running channel and cross gate by increase, and mould is applicable toThe cast form of the case structure of various complex appearances, and realize cast fluid from bottom to up, by outsideThe mode that in hoop, ring is full of is carried out filling, can effectively avoid the casting flaw such as misrun, cold shut; LogicalThe cooperation of crossing in each layer of mold cavity configuration coaxial pin-and-hole and straight pin realizes the firm connection of multilayer film cavity configuration;The present invention, also by the supporting and location post with insert structure is set, realizes the stable support of mould on the one hand,By insert structure, die unit is fixed on casting platform on the other hand, can realizes easily gravity and waterPHYSICAL MODELING OF IN under the multiple forging types such as note, centrifugal casting.
Brief description of the drawings
Fig. 1 is the three-dimensional structure schematic diagram of physical analogy mould of the present invention;
Fig. 2 is the front view of physical analogy mould of the present invention;
Fig. 3 is the upward view of physical analogy mould of the present invention;
Fig. 4 is the top layer mold cavity configuration schematic diagram of physical analogy mould of the present invention;
Fig. 5 is the middle level mold cavity configuration schematic diagram of physical analogy mould of the present invention;
Fig. 6 is the longitudinal sectional view of physical analogy mould of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawingAnd embodiment, the present invention is further elaborated. Should be appreciated that described herein concreteEmbodiment only, in order to explain the present invention, is not intended to limit the present invention. In addition described,Involved technical characterictic in each embodiment of the present invention just can as long as do not form to conflict each otherMutually to combine.
As shown in Fig. 1-6, a kind of physical analogy aero-engine of the present invention intermediary casing part is cast asThe mould of shape process, it is applicable to wax-pattern filling, mainly comprises die unit, fixed cell, illuminationThree unit. Wherein, die unit is used for realizing cast and fills type simulated, and fixed cell rises and is fixedly connected withThe effect of layering mould, lighting unit is convenient to the collection of physical analogy observation experiment and data. The present inventionIn die unit adopt layering die cavity to be formed by stacking, the die cavity of die unit is not limited to a certain spyFixed structure, can realize the physical analogy of any labyrinth form casing part casting.
To specifically three unit in physical analogy mould of the present invention be elaborated one by one below.
First module: die unit is from top to bottom formed by stacking successively by multilayer film cavity configuration, and everyThe internal cavity of layer mold cavity configuration makes by interior ring running channel 14, outer shroud running channel 15 and cross gate 16 are setBe interconnected, wherein in ring running channel 14, outer shroud running channel 15 and cross gate 16 concrete size, clothPut mode by for the casing part of labyrinth profile determine, thereby make in multilayer film cavity configurationThe cavity geometry that portion's cavity combines is suitable mutually with the shape of aero-engine intermediary casing part to be simulatedShould; The middle part of die unit is provided with the central straight running channel 1 that connects die unit, 1 of this central straight running channelBe connected with bottom mold cavity configuration, and with interior ring running channel, outer shroud running channel and the horizontal stroke of other layer of mold cavity configurationRunning channel cooperatively interacts, and the fluid-filled mode of controlling cast is for from bottom to up, inwardly encircled and be full of by outer shroud;The bottom of bottom mold cavity configuration is provided with draining valve 6 and supporting and location post 7, and this draining valve is used for physics mouldIntend cast medium and discharge, this supporting and location post 7 plays a supportive role.
In one embodiment, multilayer film cavity configuration is specially three layers, be followed successively by top layer mold cavity configuration 2,Middle level mold cavity configuration 3 and bottom mold cavity configuration 4, it forms by lucite processing and fabricating, by establishingPut interior ring running channel, outer shroud running channel and cross gate, the dimensional structure of three layers of mold cavity configuration interdepended,Inner die cavity is interconnected. In the present invention, be not limited to certain for the die unit of this layering manufactureThe casing part of one ad hoc structure, can change top layer mold cavity configuration or middle level mold cavity configuration by suitably designingOr the mode such as bottom mold cavity configuration, study the casing part casting process rule of different labyrinths, therefore,The mould of hierarchy of the present invention is highly suitable for having the casing part of labyrinth die cavity.
In one embodiment, between draining valve 6 and bottom mold cavity configuration bottom, be fixed with boss 5,For increasing the intensity of die unit.
In one embodiment, supporting and location post 7 is four, is distributed in the bottom of bottom die cavity, thisOutward, the bottom of supporting and location post 7 is insert structure, make it easy to fix with casting platform location, fromAnd can be applicable in the multiple forging type such as gravity casting and pouring, centrifugal casting cast.
Second unit: fixed cell comprises combination pin-and-hole 13 and straight pin 12. First, at every layer of die cavityIn structure, offer multiple pin-and-holes that are distributed in mold cavity configuration outer annular edge, and make the corresponding position of every layer of mold cavity configurationThe pin-and-hole being set up is coaxial, and in each layer of mold cavity configuration, coaxial pin-and-hole stack obtains combination pin-and-hole 13, straight pin12 run through combination pin-and-hole 13 so that multilayer film cavity configuration is connected and fixed.
In one embodiment, straight pin 12 is 4, and combination pin-and-hole 13 is 4 groups, multilayer die cavityStructure is three layers, and any one group of combination pin-and-hole 13 is by top layer die cavity 2, middle level die cavity 3 and bottom mouldCoaxial pin-and-hole in chamber 4 is formed by stacking, and 4 groups of combination pin-and-holes 13 are distributed in die unit outer annular edge, circlePin 12 coaxial installation corresponding to pin-and-hole 13, any one group of pin-and-hole 13 total depth equal a straight pin12 length, and adopt interference fit, wherein straight pin plays location fixation.
Unit the 3rd: lighting unit comprises round tray 11 and electric supply installation 9, and round tray 11 passes throughScrew 8 is connected in the bottom of bottom mold cavity configuration, and its one side towards bottom mold cavity configuration is (circularThe end face of pallet 11) on be provided with the LED lamp pearl 10 of multiple uniform arrays, for example LED lamp pearl is verticalTo equidistantly arranging with horizontal, be evenly arranged on round tray, and be centrosymmetric, so makeThe distribution of light sources of lamp pearl is soft, stable, is convenient to the data acquisition of fluid cast cavity filling process; Electric supply installation 9The another side (being the bottom surface of round tray 11) that is arranged on round tray 11, it is LED lamp pearl10 power supplies.
Concrete, the direction of illumination of lighting unit be vertical irradiation in bottom mold cavity configuration, illumination lightSource extends to top layer mold cavity configuration inside by bottom mold cavity configuration, so that observe clearly multilayer die cavityThe mobile form law of fluid in structure.
How brief description adopts mould of the present invention to casing part cast form process simulation below.
First, before physical analogy, carry out necessary preparation, for a certain class aviation casing part castingBefore shaping, analyze its basic structure, be roughly divided into sandwich construction, from bottom mold cavity configuration, byLayer processing and fabricating cavity body of mould structure, is not affecting or the actual cast of less impact cavity filling process meanwhileUnder prerequisite, be used in conjunction with the improvement centres such as interior ring running channel, outer shroud running channel and cross gate and be not communicated with or hinderFluid fills the cavity body structure of type order, optimizing machining technology operation; Secondly, operate for convenience and rely on realityBorder casting platform, makes mould with matching location fixed cell; Again, consider reality repeatedlyPhysical analogy needs, and necessary annex is installed, as boss, draining valve etc.; Finally, for ease of numberAccording to collection, lighting unit is installed.
Then, by the supporting and location post of mould of the present invention and existing gravitational casting or centrifugal casting castingPlatform coordinates to install to be fixed; Before type is filled in cast, close draining valve, open lighting unit, cloth sets highSpeed video camera shooting angle direction (level or vertical), mixes up high-speed motion picture camera focal length, carries out data acquisitionCollection preparation etc.; Finally, control cast and carry out, cavity filling process is taken to record, preserve in real time numberAccording to, utilize data analysis, obtain the mobile form law of casing part cast form process medium fluid.
Those skilled in the art will readily understand, the foregoing is only preferred embodiment of the present invention,Not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, etc.With replacement and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a mould for physical analogy aero-engine intermediary casing part cast form process, its featureBe, this mould comprises die unit, fixed cell and lighting unit, wherein:
Described die unit is from top to bottom formed by stacking successively by multilayer film cavity configuration, and every layer of die cavityThe internal cavity of structure is interconnected, the cavity geometry that multilayer film cavity configuration internal cavity combines withThe shape of aero-engine intermediary casing part to be simulated adapts; The middle part of described die unit is provided withConnect the central straight running channel (1) of die unit, this central straight running channel (1) and bottom mold cavity configuration phaseBe communicated with; The bottom of described bottom mold cavity configuration is provided with draining valve (6) and supporting and location post (7); InstituteState and in every layer of mold cavity configuration, be provided with multiple pin-and-holes that are distributed in mold cavity configuration outer annular edge and every layer of mouldPin-and-hole on cavity configuration correspondence position is coaxial;
Described fixed cell comprises combination pin-and-hole (13) and straight pin (12), described combination pin-and-hole (13)Formed by the coaxial pin-and-hole stack combinations in each layer of mold cavity configuration, described in described straight pin (12) runs throughCombination pin-and-hole (13) is to be connected and fixed described multilayer film cavity configuration;
Described lighting unit comprises round tray (11) and electric supply installation (9), described round tray (11)The bottom that is connected in bottom mold cavity configuration by screw (8), it is towards one of described bottom mold cavity configurationThe LED lamp pearl (10) that is provided with multiple uniform arrays on face, described electric supply installation (9) is arranged onThe another side of described round tray (11).
2. physical analogy aero-engine as claimed in claim 1 intermediary casing part cast form processMould, it is characterized in that, described multilayer film cavity configuration is specially three layers, is followed successively by top layer die cavity knotStructure (2), middle level mold cavity configuration (3) and bottom mold cavity configuration (4), it is by lucite processingBecome.
3. physical analogy aero-engine as claimed in claim 2 intermediary casing part cast form processMould, it is characterized in that, described straight pin (12) is 4, described combination pin-and-hole (13) is 4Group; Described straight pin (12) is coaxially installed with combination pin-and-hole (13), and its length equals combinationThe total depth of pin-and-hole (13).
4. physical analogy aero-engine as claimed in claim 3 intermediary casing part cast form processMould, it is characterized in that, between described draining valve (6) and bottom mold cavity configuration bottom, be fixed with and addStrong piece (5), to increase the intensity of die unit.
5. physical analogy aero-engine as claimed in claim 4 intermediary casing part cast form processMould, it is characterized in that, described supporting and location post (7) is four, is distributed in bottom mold cavity configurationBottom, its bottom be insert structure, is convenient to fix with casting platform location.
6. the physical analogy aero-engine intermediary casing part cast form as described in claim 4 or 5The mould of process, is characterized in that, the lighting source vertical irradiation of described lighting unit is at bottom die cavityIn structure, and extended to the inside of top layer mold cavity configuration by bottom mold cavity configuration, so that see clearlyExamine fluid nowed forming rule in multilayer film cavity configuration.
7. the physical analogy aero-engine intermediary casing part cast form as described in claim 4 or 5The mould of process, is characterized in that, described LED lamp pearl (10) is arranged in the following way: longitudinallyWith laterally equidistantly arrangement, be evenly arranged in described round tray (11) upper, and be centrosymmetric.
8. physical analogy aero-engine as claimed in claim 7 intermediary casing part cast form processMould, it is characterized in that, described multilayer film cavity configuration is by interior ring running channel (14), outer shroud running channel(15) and cross gate (16) be interconnected.
9. physical analogy aero-engine as claimed in claim 8 intermediary casing part cast form processMould, it is characterized in that, cast fluid in described mould with from bottom to up, inwardly encircled by outer shroudThe mode being full of is carried out filling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510988485.4A CN105583371B (en) | 2015-12-24 | 2015-12-24 | A kind of mould of physical analogy aero-engine Middle casing part cast form process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510988485.4A CN105583371B (en) | 2015-12-24 | 2015-12-24 | A kind of mould of physical analogy aero-engine Middle casing part cast form process |
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| CN105583371A true CN105583371A (en) | 2016-05-18 |
| CN105583371B CN105583371B (en) | 2017-07-18 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106770A (en) * | 2017-11-10 | 2018-06-01 | 华中科技大学 | It is a kind of to fill type Fluid pressure on-line measurement system for centrifugal casting physical analogy |
| CN108145117A (en) * | 2018-01-31 | 2018-06-12 | 华中科技大学 | A kind of polymorphic type running channel Collapsible mould for vertical centrifugal casting physical analogy |
| CN108237204A (en) * | 2018-03-07 | 2018-07-03 | 衢州学院 | A kind of aluminium alloy front end frame running gate system and manufacturing method |
| CN108765578A (en) * | 2018-05-15 | 2018-11-06 | 华中科技大学 | Type fluid pattern three-dimensional camera system and method are filled in centrifugal casting physical analogy |
| CN113858608A (en) * | 2021-09-26 | 2021-12-31 | 清华大学 | Casting simulation method and casting simulation system |
| CN114029449A (en) * | 2021-10-15 | 2022-02-11 | 宜昌船舶柴油机有限公司 | Casting method of heavy-duty gas turbine diffusion casing casting |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106770A (en) * | 2017-11-10 | 2018-06-01 | 华中科技大学 | It is a kind of to fill type Fluid pressure on-line measurement system for centrifugal casting physical analogy |
| CN108106770B (en) * | 2017-11-10 | 2019-05-03 | 华中科技大学 | It is a kind of to fill type Fluid pressure on-line measurement system for centrifugal casting physical analogy |
| CN108145117A (en) * | 2018-01-31 | 2018-06-12 | 华中科技大学 | A kind of polymorphic type running channel Collapsible mould for vertical centrifugal casting physical analogy |
| CN108237204A (en) * | 2018-03-07 | 2018-07-03 | 衢州学院 | A kind of aluminium alloy front end frame running gate system and manufacturing method |
| CN108237204B (en) * | 2018-03-07 | 2023-06-20 | 衢州学院 | Aluminum alloy front end frame pouring system and manufacturing method |
| CN108765578A (en) * | 2018-05-15 | 2018-11-06 | 华中科技大学 | Type fluid pattern three-dimensional camera system and method are filled in centrifugal casting physical analogy |
| CN113858608A (en) * | 2021-09-26 | 2021-12-31 | 清华大学 | Casting simulation method and casting simulation system |
| CN114029449A (en) * | 2021-10-15 | 2022-02-11 | 宜昌船舶柴油机有限公司 | Casting method of heavy-duty gas turbine diffusion casing casting |
| CN114029449B (en) * | 2021-10-15 | 2024-04-16 | 宜昌船舶柴油机有限公司 | Casting method of heavy gas turbine diffusion casing casting |
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| Publication number | Publication date |
|---|---|
| CN105583371B (en) | 2017-07-18 |
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