CN109992813A - New energy cogeneration machine suction end body casting technique design method - Google Patents
New energy cogeneration machine suction end body casting technique design method Download PDFInfo
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- CN109992813A CN109992813A CN201811472286.8A CN201811472286A CN109992813A CN 109992813 A CN109992813 A CN 109992813A CN 201811472286 A CN201811472286 A CN 201811472286A CN 109992813 A CN109992813 A CN 109992813A
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000005266 casting Methods 0.000 title claims abstract description 38
- 238000007711 solidification Methods 0.000 claims abstract description 4
- 230000008023 solidification Effects 0.000 claims abstract description 4
- 238000004458 analytical method Methods 0.000 claims description 6
- 206010037660 Pyrexia Diseases 0.000 claims description 5
- 210000000481 breast Anatomy 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004883 computer application Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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Abstract
The invention discloses a kind of new energy cogeneration machine suction end body casting technique design methods, including step S1: using ProE modeling software, establishes the three-dimensional entity model of new energy cogeneration machine suction end body, obtain virtual casting mold；Step S2: using numerical inversion transform software, carries out filling type and solidification to virtual casting mold obtained by step S1, obtains virtual casting；Step S3: the thermal center position of virtual casting is analyzed；Step S4: casting actual new energy cogeneration machine suction end body casting according to the parameters of virtual casting obtained by step S2, eliminates thermal center by the riser and chill that design practical casting.New energy cogeneration machine suction end body casting technique design method in the present invention, optimizes thermal center method for determining position, can accurately predict the thermal center position of casting flaw.Carry out respective handling for thermal center, can reduce the shrinkage porosite of production process medium casting, shrinkage cavity, stomata situation occurrence probability.
Description
Technical field
The present invention relates to casting Technology Design technical fields more particularly to a kind of new energy cogeneration machine suction end body to cast
Make process design method.
Background technique
For energy saving, reduction pollution, production cost is reduced, most enterprises begin to use cogeneration machine to utilize waste heat
Power generation, the important component of cogeneration machine are suction end bodies, and structure is opened as shown in Figure 1, the structure of suction end body is more complicated
Degree of raising difficult questions is larger, and production difficulty coefficient is high, causes gas leakage in product use process, and the service efficiency even product for reducing product is straight
Connecing can not normal use.
Casting Technology Design is to make the critical process of suction end body, with the casting that ensures to produce without shrinkage porosite, shrinkage cavity, gas
The defects of hole, improves the service efficiency of product, extends the service life of product, avoids replacing and repairing caused by because of product repairing
Cost.Existing casting Technology Design, the point modulus method that analysis thermal center position uses, is only capable of being directed to two-dimensional cross section and answer
With, and the selected section requirement of usually artificial calculating is harsh, and calculation amount is very big and cumbersome, is not easy to carry out computer application.
After being extended to three-dimensional situation, due to that cannot consider that surroundings nodes influence the heat dissipation of a certain node, using obtained result
It is unsatisfactory, it can not accurately predict the thermal center position for being easy to produce casting flaw.
Summary of the invention
To solve casting Technology Design proposed in above-mentioned background technique, technical side of the invention
Case is as follows:
New energy cogeneration machine suction end body casting technique design method in the present invention, comprising the following steps:
Step S1: ProE modeling software is used, the three-dimensional entity model of new energy cogeneration machine suction end body is established, obtains
To the virtual casting mold of new energy cogeneration machine suction end body；
Step S2: using numerical inversion transform software, carries out filling type and solidification to virtual casting mold obtained by step S1, obtains new
The virtual casting of energy cogeneration machine suction end body；
Step S3: the thermal center position of virtual casting obtained by analytical procedure S2；
Step S4: actual new energy cogeneration machine air-breathing is cast according to the parameters of virtual casting obtained by step S2
Body casting is held, by the thermal center for designing position shown in the riser and chill removal process S3 of practical casting.
In a preferred embodiment, step S3 specifically:
Step S31: Finite Difference Meshes are carried out to virtual casting obtained by step S2 and are evenly dividing；
Step S32: the centre coordinate value of each unit grid in read step S31；
Step S33: first time traversal is carried out to total-grid, obtains the self-radiating of each orthogonal direction of each unit grid
Ability；
Step S34: second is carried out to total-grid and is traversed, the heat-sinking capability of each unit grid is obtained；
Step S35: according to the heat-sinking capability of calculated each unit grid, judge that foundryman's fever section is set.
In a preferred embodiment, step S33 specifically:
Step S331: calculate virtual casting radiating surface on each unit grid center to ± X, ± Y, ± Z-direction away from
From df, f=1~6；
Step S332: the inverse of distance is the heat-sinking capability p of the unit grid in this direction on each directionf, pf=
1/df, f=1~6.
In a preferred embodiment, step S34 specifically:
Step S341: each unit grid center is calculated to ± X, ± Y, ± Z-direction i.e. to the self-radiating energy in six faces
The sum of power
Step S342: the sum of all self-radiating abilities are calculatedHeat radiation energy corresponding with the adjacent cells in each face
The difference of power, it is inverted to difference, obtain the heat-sinking capability of each unit grid:
Wherein, PI, j, kIt is the current heat-sinking capability calculated at grid cell,It is current calculating grid list
The heat-sinking capability in each orthogonal direction face of member, f=1 is top surface, and f=2 is bottom surface, and f=3 is the left side, and f=4 is the right side, and f=5 is
Front, f=6 are below；It is the upper surface heat radiation energy with the grid cell for currently calculating grid cell following table face contact
Power；The lower surface heat-sinking capability for being and currently calculating the grid cell that grid cell upper surface contacts；It is and works as
The left surface heat-sinking capability of the preceding grid cell for calculating the right surface contact of grid cell；It is and currently calculates grid cell
The right surface radiating ability of the grid cell of left-handed watch face contact；It is and currently calculates the grid that contacts of grid cell rear surface
The front surface heat-sinking capability of unit；It is to be dissipated with the rear surface for currently calculating the grid cell that grid cell front surface contacts
Thermal energy power.
In a preferred embodiment, judge that foundryman's fever section is set in step S35 specifically:
Heat-sinking capability is reflected in three-dimensional grid physically by color, the size and shade of heat-sinking capability are at just
Than the i.e. more big corresponding color of heat-sinking capability is deeper, and the smaller corresponding color of heat-sinking capability is more shallow, and color bosom is virtual casting
Part thermal center position.
In a preferred embodiment, step S4 specifically:
Actual new energy cogeneration machine suction end body casting is cast according to the parameters of virtual casting obtained by step S2
Part puts chill in heat energy-saving position and carries out Quench, increases subsidy in riser lower part and eliminates thermal center.
New energy cogeneration machine suction end body casting technique design method in the present invention, compared with prior art,
It has the beneficial effect that
New energy cogeneration machine suction end body casting technique design method in the present invention, optimizes thermal center position really
Determine method, surroundings nodes takes into account the heat dissipation influence of a certain node, accuracy greatly promotes, and can accurately predict
The thermal center position of casting flaw.Respective handling is carried out for thermal center, shrinkage porosite, the shrinkage cavity, stomata of production process medium casting can be reduced
The occurrence probability of situation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of new energy cogeneration machine suction end body in the present invention；
Fig. 2 is the flow chart of new energy cogeneration machine suction end body casting technique design method in the present invention.
Specific embodiment
Technical solution of the present invention will be clearly and completely described below.Based on the embodiments of the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to guarantor of the present invention
The range of shield.
New energy cogeneration machine suction end body casting technique design method of the invention, process are shown in Fig. 2, including following
Step:
Step S1: ProE modeling software is used, the three-dimensional entity model of new energy cogeneration machine suction end body is established, obtains
To the virtual casting mold of new energy cogeneration machine suction end body；
Step S2: using numerical inversion transform software, carries out filling type and solidification to virtual casting mold obtained by step S1, obtains new
The virtual casting of energy cogeneration machine suction end body；
Step S3: the thermal center position of virtual casting obtained by analytical procedure S2, specifically:
Step S31: Finite Difference Meshes are carried out to virtual casting obtained by step S2 and are evenly dividing；
Step S32: the centre coordinate value of each unit grid in read step S31；
Step S33: first time traversal is carried out to total-grid, obtains the self-radiating of each orthogonal direction of each unit grid
Ability, specifically:
Step S331: calculate virtual casting radiating surface on each unit grid center to ± X, ± Y, ± Z-direction away from
From df, f=1~6；
Step S332: the inverse of distance is the heat-sinking capability p of the unit grid in this direction on each directionf, pf=
1/df, f=1~6.
Step S34: carrying out second to total-grid and traverse, obtain the heat-sinking capability of each unit grid, specifically:
Step S341: each unit grid center is calculated to ± X, ± Y, ± Z-direction i.e. to the self-radiating energy in six faces
The sum of power
Step S342: the sum of all self-radiating abilities are calculatedHeat radiation energy corresponding with the adjacent cells in each face
The difference of power, it is inverted to difference, obtain the heat-sinking capability of each unit grid:
Wherein, PI, j, kIt is the current heat-sinking capability calculated at grid cell,It is current calculating grid list
The heat-sinking capability in each orthogonal direction face of member, f=1 is top surface, and f=2 is bottom surface, and f=3 is the left side, and f=4 is the right side, and f=5 is
Front, f=6 are below；It is the upper surface heat radiation energy with the grid cell for currently calculating grid cell following table face contact
Power；The lower surface heat-sinking capability for being and currently calculating the grid cell that grid cell upper surface contacts；It is and works as
The left surface heat-sinking capability of the preceding grid cell for calculating the right surface contact of grid cell；It is and currently calculates a grid cell left side
The right surface radiating ability of the grid cell of surface contact；It is and currently calculates the grid that contacts of grid cell rear surface
The front surface heat-sinking capability of unit；It is to be dissipated with the rear surface for currently calculating the grid cell that grid cell front surface contacts
Thermal energy power.
Step S35: according to the heat-sinking capability of calculated each unit grid, judging that foundryman's fever section is set, specifically:
Heat-sinking capability is reflected in three-dimensional grid physically by color, the size and shade of heat-sinking capability are at just
Than the i.e. more big corresponding color of heat-sinking capability is deeper, and the smaller corresponding color of heat-sinking capability is more shallow, and color bosom is virtual casting
Part thermal center position.
Step S4: actual new energy cogeneration machine air-breathing is cast according to the parameters of virtual casting obtained by step S2
Body casting is held, chill is put in heat energy-saving position and carries out Quench, increases subsidy in riser lower part and eliminates thermal center.
Embodiment
To suction end body casting shown in FIG. 1, using a position for modulus method analysis thermal center, by itself and actual suction end body
The thermal center position of casting is compared, and it is 88% that thermal center, which analyzes predictablity rate, and the method in the application is used to carry out heat
The analysis of section, thermal center predictablity rate are 98%.From predictablity rate as it can be seen that the application can accurate thermal center, reduction produced
The shrinkage porosite of journey medium casting, shrinkage cavity, stomata situation occurrence probability.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (6)
1. new energy cogeneration machine suction end body casting technique design method, which comprises the following steps:
Step S1: using ProE modeling software, establish the three-dimensional entity model of new energy cogeneration machine suction end body, obtains new
The virtual casting mold of energy cogeneration machine suction end body；
Step S2: using numerical inversion transform software, carries out filling type and solidification to virtual casting mold obtained by step S1, obtains new energy
The virtual casting of cogeneration machine suction end body；
Step S3: the thermal center position of virtual casting obtained by analytical procedure S2；
Step S4: actual new energy cogeneration machine suction end body is cast according to the parameters of virtual casting obtained by step S2
Casting, by the thermal center for designing position shown in the riser and chill removal process S3 of practical casting.
2. new energy cogeneration machine suction end body casting technique design method according to claim 1, which is characterized in that
The step S3 specifically:
Step S31: Finite Difference Meshes are carried out to virtual casting obtained by step S2 and are evenly dividing；
Step S32: the centre coordinate value of each unit grid in read step S31；
Step S33: first time traversal is carried out to total-grid, obtains the self-radiating energy of each orthogonal direction of each unit grid
Power；
Step S34: second is carried out to total-grid and is traversed, the heat-sinking capability of each unit grid is obtained；
Step S35: according to the heat-sinking capability of calculated each unit grid, judge that foundryman's fever section is set.
3. new energy cogeneration machine suction end body casting technique design method according to claim 2, which is characterized in that
The step S33 specifically:
Step S331: the distance d of virtual casting radiating surface on each unit grid center to ± X, ± Y, ± Z-direction is calculatedf, f
=1~6；
Step S332: the inverse of distance is the heat-sinking capability p of the unit grid in this direction on each directionf, pf=1/
df, f=1~6.
4. new energy cogeneration machine suction end body casting technique design method according to claim 2 or 3, feature exist
In the step S34 specifically:
Step S341: calculate each unit grid center to ± X, ± Y, ± Z-direction i.e. to six faces self-radiating ability it
With
Step S342: the sum of all self-radiating abilities are calculatedHeat-sinking capability corresponding with the adjacent cells in each face it
Difference, it is inverted to difference, obtain the heat-sinking capability of each unit grid:
Wherein, PI, j, kIt is the current heat-sinking capability calculated at grid cell,It is that current calculating grid cell is each
The heat-sinking capability in a orthogonal direction face, f=1 are top surface, and f=2 is bottom surface, and f=3 is the left side, and f=4 is the right side, before f=5 is
Face, f=6 are below；It is the upper surface heat-sinking capability with the grid cell for currently calculating grid cell following table face contact；The lower surface heat-sinking capability for being and currently calculating the grid cell that grid cell upper surface contacts；It is and currently counts
Calculate the left surface heat-sinking capability of the grid cell of the right surface contact of grid cell；It is and currently calculates grid cell left-handed watch
The right surface radiating ability of the grid cell of face contact；It is and currently calculates the grid list that contacts of grid cell rear surface
The front surface heat-sinking capability of member；It is to radiate with the rear surface for currently calculating the grid cell that grid cell front surface contacts
Ability.
5. new energy cogeneration machine suction end body casting technique design method according to claim 4, which is characterized in that
Judge that foundryman's fever section is set in the step S35 specifically:
Heat-sinking capability is reflected in three-dimensional grid physically by color, the size of heat-sinking capability is directly proportional to shade, i.e.,
The more big corresponding color of heat-sinking capability is deeper, and the smaller corresponding color of heat-sinking capability is more shallow, and color bosom is virtual casting heat
Section is set.
6. new energy cogeneration machine suction end body casting technique design method according to claim 1, which is characterized in that
Step S4 specifically:
Actual new energy cogeneration machine suction end body casting is cast according to the parameters of virtual casting obtained by step S2,
Heat energy-saving position puts chill and carries out Quench, increases subsidy in riser lower part and eliminates thermal center.
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| CN201811472286.8A CN109992813A (en) | 2018-11-27 | 2018-11-27 | New energy cogeneration machine suction end body casting technique design method |
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| CN201811472286.8A CN109992813A (en) | 2018-11-27 | 2018-11-27 | New energy cogeneration machine suction end body casting technique design method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073769A (en) * | 2011-01-12 | 2011-05-25 | 山东大学 | Method for quickly predicting casting hot spot |
| CN105033191A (en) * | 2015-06-30 | 2015-11-11 | 四川德恩精工科技股份有限公司 | Belt pulley casting simulation analysis and optimization design method |
| CN105447282A (en) * | 2015-12-31 | 2016-03-30 | 天津浩宇天仿科技有限公司 | Casting simulation system |
-
2018
- 2018-11-27 CN CN201811472286.8A patent/CN109992813A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073769A (en) * | 2011-01-12 | 2011-05-25 | 山东大学 | Method for quickly predicting casting hot spot |
| CN105033191A (en) * | 2015-06-30 | 2015-11-11 | 四川德恩精工科技股份有限公司 | Belt pulley casting simulation analysis and optimization design method |
| CN105447282A (en) * | 2015-12-31 | 2016-03-30 | 天津浩宇天仿科技有限公司 | Casting simulation system |
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Application publication date: 20190709 |
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