CN105598380B - A kind of casting pattern application method of internal densener sand core structure - Google Patents
A kind of casting pattern application method of internal densener sand core structure Download PDFInfo
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- CN105598380B CN105598380B CN201610050168.2A CN201610050168A CN105598380B CN 105598380 B CN105598380 B CN 105598380B CN 201610050168 A CN201610050168 A CN 201610050168A CN 105598380 B CN105598380 B CN 105598380B
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- internal densener
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
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- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Present invention casting, which is related to, makes a kind of casting pattern internal densener sand core structure and its application method in technical field, wherein, casting pattern internal densener sand core structure, including the internal densener core being adhesively fixed on casting sand mold, internal densener is embedded with the internal densener core, easily there is the position of shrinkage cavity shrinkage porosity in the internal densener correspondence casting, and the casting pattern corresponding position for being bonded internal densener core forms the cavity for accommodating internal densener core when being used for moulding sand mold provided with core print.The casting pattern of the present invention is with internal densener sand core structure in casting pattern transformation, in the position for needing the position for designing internal densener to fix internal densener by internal densener core, and internal densener core design is into can be bonded in the loose piece form on casting sand type surface, existing casting pattern structure need not be destroyed, internal densener simply, flexibly can be set up as needed, and the precise positioning of internal densener is realized, structure of the invention is particularly suitable in metal structure casting pattern.
Description
Technical field
The present invention relates to casting technology field, more particularly to a kind of casting pattern is with internal densener sand core structure and its user
Method, it is adaptable in casting pattern redesign transformation.
Background technology
During Foundry Production is verified and produced in batches, it occur frequently that the shrinkage porosity defect of contraction cavity beyond control limit is processed drilling brill
Out, causing casting needs to pass through welding, the stifled repairing of edge could use or scrap.And large-scale ductile iron part is under normal circumstances
Do not allow repair by welding, can only directly scrap, caused to particularly nodular iron casting manufacturing enterprise of casting manufacturing enterprise huge
Big loss.To this problem, with regard in terms of casting technique, using chill to needing to accelerate the position of cooling to carry out Quench, using emitting
The technological measures such as mouthful feeding obtain the casting of interior solid.It can not effectively overcome ball in techniques such as external chill, riser feedings
During the shrinkage porosity defect of contraction cavity of black ironcasting, it is a kind of more effective technological measure that internal densener is particularly fused using internal densener.
Internal densener needs to be placed on the accurate location of casting mold and can fixed, it is necessary to carry out different degrees of change to mould or core box structure
Make, boring positioning or loose piece is done such as on mould, and the modification to metal die is then extremely difficult.
The content of the invention
It is an object of the invention to provide a kind of casting pattern internal densener sand core structure, to realize casting pattern redesign transformation
In, casting pattern need not be machined when internal densener is set, it is ensured that the complete and service life of moulding mould.
The object of the present invention is achieved like this, a kind of casting pattern internal densener sand core structure, including is adhesively fixed on
Internal densener is embedded with internal densener core on casting sand mold, the internal densener core, the internal densener correspondence casting easily occurs
The position of shrinkage cavity shrinkage porosity, the corresponding position for being bonded internal densener core of the casting pattern, which is provided with core print, is used for shape during moulding sand mold
Into the cavity for accommodating internal densener core.
The casting pattern of the present invention in casting pattern transformation, is needing the portion of design internal densener with internal densener sand core structure
Position fixes the position of internal densener by internal densener core, and internal densener core design is into can be bonded in the work on casting sand type surface
Block form, it is not necessary to destroy existing casting pattern structure, simply, flexibly can set up internal densener as needed, and in realizing
The precise positioning of chill, structure of the invention is particularly suitable in metal structure casting pattern.
Can also be fused close to casting mold part for ease of internal densener after cast, the internal densener be two ends it is thick in the middle of it is thin symmetrical
Or unsymmetric structure, 1/4-the 1/3 of a diameter of two end portions diameter of internal densener interlude.
According to casting structure needs, the internal densener is along internal densener core level, vertical or be obliquely installed.
For ease of the fixation of internal densener, the internal densener is embedded in internal densener core in one end when internal densener core makes
It is interior.
It is a further object to provide a kind of application method of above-mentioned casting pattern with internal densener sand core structure, institute
Casting pattern internal densener sand core structure is stated suitable for casting pattern redesign transformation, including following process：a）According to casting
The position of shrinkage porosity defect of contraction cavity frequency higher part position occurs after cast, it is determined that needing to set position, the number of internal densener in casting
Shape, the size of amount and internal densener；B) according to design attitude of the internal densener in casting in the corresponding Position Design of casting sand mold
Internal densener core and with core print of the internal densener core with physical dimension；C) design and produce for quicksand shape internal densener core and
The core box of core print, then utilizes the core box moulding core print；D) when sand mold makes, glued in the position of casting pattern correspondence internal densener
Connect or place core print, then carry out moulding, coremaking, complete casting sand type, core and manufacture, and core print is taken out, in core print position
Put the cavity to be formed for accommodating internal densener core；E) internal densener core is made using the core box back-up sand in step c), and will be interior
Chill one end is embedded in internal densener core；F) casting sand type, core are normally coated, internal densener core is bonded or
Be placed into casting sand type SMIS capitiform into cavity in, and internal densener is covered with protective case, carries out coating brushing, to prevent from applying
Material, which is sticked to, produces casting flaw on internal densener；G) mould assembling, pouring cast part；H) casting is cleared up, by internal densener unnecessary on casting
Core removes.
In the step e), internal densener core makes the used time, and internal densener is embedded in internal densener core.
In the step e), internal densener core completes from core box after taking-up, by internal densener fixing card mounted in interior cold
Iron sand in-core.
Brief description of the drawings
The schematic diagram for the internal densener core that Fig. 1 is uprightly set for the internal densener of the present invention.
The schematic diagram for the internal densener core that Fig. 2 is obliquely installed for the internal densener of the present invention
Fig. 3 is the schematic diagram of internal densener.
The structural representation of Fig. 4 core boxes.
The schematic diagram of core print is bonded when Fig. 5 is Molding Casting sand mold on cast model.
Fig. 6 is adhered to the schematic diagram on casting sand type for internal densener core before mould assembling.
Embodiment
Embodiment 1
The casting pattern internal densener sand core structure of the present invention, as shown in fig. 6, including being adhesively fixed on casting sand mold 6
Internal densener core 1, internal densener 2 is embedded with internal densener core 1, the position of shrinkage cavity shrinkage porosity easily occurs in the correspondence casting of internal densener 2,
As shown in figure 5, the position of the corresponding bonding internal densener core of casting pattern 5 is formed when being used for moulding castings sand mold 6 provided with core print 4
Accommodate the cavity of internal densener core 1；For ease of the fracture separation of internal densener after cast 2, internal densener 2 is thick middle thin pair in two ends
Claim or unsymmetric structure, 1/4-the 1/3 of a diameter of two end portions diameter of the interlude of internal densener 2；According to casting structure needs,
Internal densener 2 along internal densener core 1 can level, vertical or be obliquely installed, as depicted in figs. 1 and 2；For ease of consolidating for internal densener
Fixed, internal densener 2 is embedded in internal densener core 1 one end when internal densener core 1 makes, can also internal densener core 1 be fabricated to
The clamp of internal densener 2 is fixed on sand core internal after work(, for same casting different parts set multiple internal denseners when, internal densener
The shape and size of core 1 can be with different, to adapt to the shape need of casting corresponding site.
The casting pattern of the present invention in casting pattern transformation, is needing the portion of design internal densener with internal densener sand core structure
Position fixes the position of internal densener 2 by internal densener core 1, and internal densener core design is into can be bonded in casting sand type surface
Loose piece form, it is not necessary to destroy existing casting pattern structure, can simply, flexibly set up internal densener as needed, and realize
The precise positioning of internal densener, structure of the invention is particularly suitable in metal structure casting pattern.
Embodiment 2
In application method of the casting pattern of the present invention with internal densener sand core structure, above-mentioned casting pattern internal densener core
Structure is carried out redesign transformation suitable for casting pattern using occurring shrinkage porosity defect of contraction cavity after a period of time for casting, specifically
Including following process：a）According to the position of shrinkage porosity defect of contraction cavity frequency higher part position occurs after casting pouring, it is determined that in casting
Need to set the position of internal densener, the shape of quantity and internal densener, size；B) existed according to design attitude of the internal densener in casting
The corresponding Position Design internal densener core 1 of casting sand mold 6 and with core print 4 of the internal densener core with physical dimension, such as Fig. 5 and Fig. 6
It is shown；C) core box 3 that internal densener core and core print are shaped for quicksand is designed and produced, as shown in figure 4, then utilizing the core box 3
Moulding core print 4；D) when sand mold makes, in the position bonding or placement core print 4 of the correspondence internal densener of casting pattern 5, then made
Type, coremaking, complete casting sand type, core and manufacture, and core print 4 is taken out, and are formed in the position of core print 4 for accommodating internal densener sand
The cavity of core；E) internal densener core 1 is made using the back-up sand of core box 3 in step c), and the one end of internal densener 2 is embedded in internal densener
In core；In this step, internal densener can be embedded in core in coremaking, core can also be taken out from core box after the completion of coremaking
Internal densener clamp is fixed in core afterwards；F) casting sand type, core are normally coated, internal densener core 1 is bonded or
Be placed into the SMIS capitiform of casting sand type 5 into cavity in, and internal densener is covered with protective case, coating brushing is carried out, to prevent
Clagging produces casting flaw on internal densener 2；G) mould assembling, pouring cast part；H) clear up casting, will be unnecessary on casting in it is cold
Iron sand core removes.
To sum up embodiment, casting pattern of the invention in casting pattern transformation, is being needed with internal densener sand core structure
The position of internal densener is fixed at the position for designing internal densener by internal densener core, and internal densener core design is into can be bonded in casting
Make the loose piece form of mould surface, it is not necessary to destroy existing casting pattern structure, simply, flexibly can set up interior as needed
Chill, and the precise positioning of internal densener is realized, structure of the invention is particularly suitable in metal structure casting pattern.
Claims (6)
1. a kind of casting pattern application method of internal densener sand core structure, it is characterised in that the casting pattern internal densener
Sand core structure is suitable for casting pattern redesign transformation, including following process：a）According to occurring shrinkage cavity shrinkage porosity after casting pouring
The position of defect frequency higher part position, it is determined that needing to set the position of internal densener, the shape of quantity and internal densener, chi in casting
It is very little；B) according to design attitude of the internal densener in casting in the corresponding Position Design internal densener core of casting sand mold and and internal densener
Core print of the core with physical dimension；The internal densener core is adhesively fixed on casting sand mold, is buried in the internal densener core
Easily there is the position of shrinkage cavity shrinkage porosity in the internal densener, the internal densener correspondence casting, and the core print is arranged on casting pattern bonding
The correspondence position of internal densener core is used to form the cavity for accommodating internal densener core during moulding sand mold；C) design and produce for flowing
Sand shapes the core box of internal densener core and core print, then utilizes the core box moulding core print；D) when sand mold makes, in casting pattern
The position bonding of correspondence internal densener places core print, then carries out moulding, coremaking, completes casting sand type, core and manufactures, and will
Core print is taken out, and the cavity for accommodating internal densener core is formed in core print position；E) made using the core box back-up sand in step c)
Internal densener core, and internal densener one end is embedded in internal densener core；F) casting sand type, core are normally coated, will
Internal densener core be bonded or be placed into casting sand type SMIS capitiform into cavity in, and internal densener is covered with protective case, carried out
Coating is brushed, to prevent that clagging from producing casting flaw on internal densener；G) mould assembling, pouring cast part；H) casting is cleared up, will be cast
Unnecessary internal densener core removes on part.
2. the application method of internal densener sand core structure of casting pattern described in claim 1, it is characterised in that the process e)
In, when internal densener core makes, internal densener is embedded in internal densener core.
3. the application method of internal densener sand core structure of casting pattern described in claim 2, it is characterised in that the process e)
In, internal densener core completes from core box after taking-up, by internal densener fixing card in internal densener core.
4. the application method of internal densener sand core structure of casting pattern described in claim 1, it is characterised in that the process b)
In, internal densener is the thick middle thin symmetrically or non-symmetrically structure in two ends, a diameter of two end portions diameter of internal densener interlude
1/4—1/3。
5. the application method of internal densener sand core structure of casting pattern described in claim 1, it is characterised in that the process b)
In, internal densener is along internal densener core level, vertical or be obliquely installed.
6. the application method of internal densener sand core structure of casting pattern described in claim 1, it is characterised in that the process b)
In, internal densener is embedded in internal densener core one end when internal densener core makes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610050168.2A CN105598380B (en) | 2016-01-26 | 2016-01-26 | A kind of casting pattern application method of internal densener sand core structure |
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| CN201610050168.2A CN105598380B (en) | 2016-01-26 | 2016-01-26 | A kind of casting pattern application method of internal densener sand core structure |
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| CN105598380A CN105598380A (en) | 2016-05-25 |
| CN105598380B true CN105598380B (en) | 2017-07-11 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745084A (en) * | 2017-11-06 | 2018-03-02 | 四川共享铸造有限公司 | A kind of combining structure and design method of core chill |
| CN108176834A (en) * | 2018-03-01 | 2018-06-19 | 溧阳市联华机械制造有限公司 | A kind of special chill sand core and preparation method thereof |
| CN109317607A (en) * | 2018-11-28 | 2019-02-12 | 贵州安吉航空精密铸造有限责任公司 | A kind of method and core box placed machine on film covered sand core and add chill |
| CN111097876B (en) * | 2019-12-03 | 2021-06-08 | 清华大学 | Method for applying chilling block to 3D printing sand mold |
| CN112059137A (en) * | 2020-08-24 | 2020-12-11 | 乔治费歇尔金属成型科技（昆山）有限公司 | Novel application method of chilling block |
| US11654476B2 (en) * | 2020-09-28 | 2023-05-23 | GM Global Technology Operations LLC | Hybrid core for manufacturing of castings |
| CN114309523B (en) * | 2021-11-29 | 2024-03-26 | 共享装备股份有限公司 | Internal chill for casting, use method and casting method |
| CN114632913A (en) * | 2022-03-23 | 2022-06-17 | 山河智能装备股份有限公司 | Casting method |
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| JPS5224924A (en) * | 1975-08-21 | 1977-02-24 | Honda Motor Co Ltd | Mold for casting chill cam shaft |
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| CN101637814A (en) * | 2009-08-27 | 2010-02-03 | 山西华翔同创铸造有限公司 | Casting method of movable and fixed vortex casting pieces of compressor |
| CN102049473A (en) * | 2011-01-25 | 2011-05-11 | 西峡县众德汽车部件有限公司 | Novel sand core and preparation method thereof |
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| CN105598380A (en) | 2016-05-25 |
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