CN107745084A - A kind of combining structure and design method of core chill - Google Patents
A kind of combining structure and design method of core chill Download PDFInfo
- Publication number
- CN107745084A CN107745084A CN201711080202.1A CN201711080202A CN107745084A CN 107745084 A CN107745084 A CN 107745084A CN 201711080202 A CN201711080202 A CN 201711080202A CN 107745084 A CN107745084 A CN 107745084A
- Authority
- CN
- China
- Prior art keywords
- core
- chill
- sub
- parent
- combination
- 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
Links
Classifications
-
- 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
- B22C9/103—Multipart cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Abstract
The present invention discloses a kind of design method of the combining structure of core chill, comprises the following steps：Step a：Manufacture chill is required according to casting process scheme and casting structure；Step b：Require to complete parent core according to casting process scheme and casting structure and combine the design drawing of core, the combination core includes chill and sub- core；Step c：Parent core is manufactured according to the design drawing of parent core；Step d：According to the design drawing manufacture combination core of combination core, manufacture first lays chill when combining core, remanufactures sub- core；Step e：Combination core is bonded together with parent core with bonding agent.This method is by first laying chill, then completes the mode of sub- core manufacture and produce combination core, can avoid because chill caused by the reasons such as chill pattern draft, dimensional discrepancy and overlap lays the problems such as difficult.
Description
Technical field
The present invention relates to casting technique field, and in particular to a kind of combining structure and design method of core chill.
Background technology
For increase casting Local cooling speed, inside core die cavity and working surface lay metal derby be referred to as chill,
In Foundry Production, chill is used for preventing casting from producing shrinkage cavity and porosity and the problems such as crackle, to ensureing that it is important that casting quality plays
Effect.In the prior art, core manufacture is mainly traditional-handwork molding and core making, traditional cold-box core shooting coremaking and 3D printing system
Core, traditional-handwork molding and core making efficiency is low, and for traditional cold-box core shooting coremaking and 3D printing coremaking, efficiency is more manual
Model coremaking is high, but problems be present：
Traditional cold-box core shooting coremaking：Chill is generally arranged at lower mould, but when upper sand core needs chill, chill is but
It or can not be not easy to lay, chill placement space need to be reserved in design, treat again to paste chill up after the completion of sand mold core shooting.But
It is in chill installation process, due to the problems such as casting the pattern draft of chill, dimensional discrepancy and overlap, causes chill and core
Chill headspace misfit, it is necessary to chill of polishing, time-consuming, cost is high, and efficiency is low, is not advised additionally, due to chill profile
Whole, because gap is more in taping process, the sand bond in gap is difficult to ensure that, adds casting burning into sand risk；Such as mistake
Use binding agent more, then can increase the gas forming amount of sand mold, easily cause the casting flaws such as stomata.
3D printing coremaking：3D printing coremaking can not lay chill, it is necessary to during chill, chill need to be reserved in core design and put
Between being empty, treat again to paste chill up after the completion of core printing.But in chill installation process, exist and traditional cold-box
The problem of the same during chill is laid after the completion of core shooting coremaking again.
To sum up, in order to improve efficiency, the cold-box core shooting coremaking of generally use tradition and 3D printing coremaking in industrial production, but
It is due to that chill can not be previously positioned in core model (in traditional cold-box core shooting coremaking, when mould on core be present
Need not placing during chill, chill can not be laid at all during 3D printing coremaking), in the case of these, chill is completed in coremaking
It is directly placed at afterwards in the reserved space of shaping core, and because the problems such as the pattern draft of chill, dimensional discrepancy and overlap, meeting
Chill is caused to be laid difficult.
The content of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of combining structure and design method of core chill, this
For method by first laying chill, the mode for remanufacturing sub- core produces combination core, can avoid due to chill pattern draft,
Chill caused by the reason such as dimensional discrepancy and overlap lays the problems such as difficult, and the chill after combination and sub- core are put into mother simultaneously
The headspace of body core, because no matter the core produced using that mode has a smooth outer surface, size is accurate
The characteristics of, the problem of being misfitted in the absence of sub- core profile and parent core headspace, the present invention is realized by following scheme：
A kind of design method of the combining structure of core chill, comprises the following steps：
Step a：Manufacture chill is required according to casting process scheme and casting structure；
Step b：Require to complete parent core according to casting process scheme and casting structure and combine the design drawing of core, institute
Stating combination core includes sub- core and chill；
Step c：Parent core is manufactured according to the design drawing of parent core；
Step d：According to the design drawing manufacture combination core of combination core, manufacture first lays chill when combining core, then makes
Make sub- core；
Step e：The sub- core for combining core is bonded together with parent core by bonding agent.
Further, step b includes：
Step b1：Required to complete the design drawing of integral sand core according to casting process scheme and casting structure；
Step b2：Required to determine riding position of the chill in integral sand core according to casting process scheme and casting structure,
And it is reacted in the design drawing of integral sand core；
Step b3：In the design drawing of integral sand core, by core thick 5-40mm being in contact with chill outer surface from whole
Splitted out in body core, complete parent core and combine the design drawing of core.
Further, step c is specially：3D printing technique or cold-box core shooting system are used according to the design drawing of parent core
Core technology manufactures parent core.
Further, step d includes：
Step d1：The mould needed according to the manufacture of the design drawing of sub- core when manufacturing sub- core；
Step d2：Core is combined according to the Making mold of chill and sub- core.
Further, step d3 is specially：Cold-box core shooting core-making technique system is used according to the mould of chill and sub- core
Make combination core.
Further, step e is specially：Pass through a kind of sub- core that will be combined in core in cold glue or sand mold binder
Bonded together with parent core.
A kind of combining structure of the core chill manufactured in aforementioned manners, including：
Parent core and combination core；
The combination core includes sub- core and chill；
The combination core is bonded together by bonding agent and parent core.
Further, the parent core and sub- core are provided with die cavity, and the chill is located in the die cavity of sub- core,
The sub- core is located in the die cavity of parent core, and the die cavity inner wall size phase of the exterior surface dimension of sub- core and parent core
Matching, is bonded together between the outer surface of sub- core and the die cavity inwall of parent core by bonding agent.
Further, the bonding agent is one kind in cold glue or moulding sand binder.
Further, the thickness of the sub- core is 5-40mm.
Using the inventive method, chill, pattern draft, the dimensional discrepancy of chill only need to be manufactured and designed according to a conventional method
And the problems such as overlap, is all wrapped in sub- sand core internal when manufacturing sub- core, it is not necessary to chill polishing chill is individually laid,
And zero clearance between chill and sub- core, it is ensured that combine the intensity of core, combination core is integrally being placed to parent
When in core, due to smooth outer surface when core manufactures, size is accurate, in the absence of sub- core profile and parent core headspace
The problem of misfitting, so as in bonding process, will not excessive use bonding agent, can effectively reduce the gas forming amount of sand mold, no
The casting flaws such as stomata can be caused.
Brief description of the drawings
Fig. 1 is a kind of profile of the combining structure of core chill provided by the invention.
Reference：1-parent core, 2-sub- core, 3-chill.
Embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to embodiment
The present invention is described in further detail.
Embodiment 1
The present embodiment provides a kind of design method of the combining structure of core chill, comprises the following steps：
Step a：Manufacture chill 3 is required according to casting process scheme and casting structure；
Step b：Required to complete the design drawing of parent core 1 and combination core according to casting process scheme and casting structure,
The combination core includes chill 3 and sub- core 2；
Step c：Parent core 1 is manufactured according to the design drawing of parent core 1；
Step d：According to the design drawing manufacture combination core of combination core, manufacture first lays chill 3 when combining core, then makes
Make sub- core 2；
Step e：Bonded together by bonding agent by core is combined with parent core 1.
Further, step b includes：
Step b1：Required to complete the design drawing of integral sand core according to casting process scheme and casting structure；
Step b2：Required to determine riding position of the chill 3 in integral sand core according to casting process scheme and casting structure,
And it is reacted in the design drawing of integral sand core；
Step b3：In the design drawing of integral sand core, by core thick 5-40mm being in contact with the outer surface of chill 3 from
Splitted out in integral sand core, complete the design drawing of parent core 1 and combination core.
In order to improve production efficiency, step c is specially：3D printing technique or cold is used according to the design drawing of parent core 1
Core box core shooting core-making technique manufacture parent core 1.
Further, step d includes：
Step d1：The mould needed according to the manufacture of the design drawing of sub- core 2 when manufacturing sub- core 2；
Step d2：Chill 3 is placed on the mould of sub- core 2；
Step d3：Core is combined according to the Making mold of chill 3 and sub- core 2.
In order to improve production efficiency, can be placed in advance in core mold also for guarantee chill 3, step d3 is specific
For：According to the mould of chill 3 and sub- core 2 using cold-box core shooting core-making technique manufacture combination core.
Further, step e is specially：Pass through a kind of sub- core that will be combined in core in cold glue or sand mold binder
2 bond together with parent core 1.
In the present embodiment, production procedure is that first layout design carries out manufacture in kind further according to drawing.
In the present embodiment, no matter using cold-box core shooting core-making technique or 3D printing technique manufacture parent core 1, setting
When counting parent core 1 and combination core shooting, will combine when the sub- core of core splits out from integral sand core, it is necessary to pay attention to
Lower problem：
(1) it is 0.5-1mm by the gap setting between parent core and sub- core, specific gap length is according to sub- core
Size determine；
(2) combine in core, the mold thickness around chill must assure that the intensity requirement for individually producing and making core.
If parent core 1 is manufactured using cold-box core shooting core-making technique it is also noted that sub- core split after parent core
Pattern draft problem.
In the present embodiment, except manufacturing combination core with cold-box core shooting core-making technique, traditional-handwork moulding can also be used
Core-making technique is manufactured, and in the specific implementation, typically cold-box core shooting core-making technique is used using of large quantities.
When the present embodiment is embodied, the present embodiment can be solved effectively：
(1) during traditional cold-box core shooting coremaking, upper mould face can not (or being not easy) directly lay chill cause band withdrawing pattern
The problem of gap is big between the chill and core of gradient；
(2) chill can not directly lay cause gap between chill and core with pattern draft big during 3D printing core
Problem；
(3) the problem of can not ensureing to bond fastening and intensity when chill is less than 4 faces with core contact surface；
(4) size for pasting chill requires higher, i.e., without die joint overlap and pattern draft, the problem of；
(5) the problem of secondary operation chill cost is high；
(6) because chill and core material are different, chill is directly bonded in asking of causing adhesive strength inadequate on core
Topic；
So as to efficiently solve the efficiency of casting production in enormous quantities and production line balance, shorten the group core station of production line
Beat；It ensure that the sticking Quality of core chill and the stabilization of product quality.
Embodiment 2
As shown in figure 1, the present embodiment provides a kind of combination knot for the core chill that method provided with embodiment 1 manufactures
Structure, including：
Parent core 1 and combination core；Combination core includes sub- core 2 and chill 3；Combine core and pass through bonding agent and mother
Body core bonds together.
Specifically, parent core 1 and sub- core 2 are provided with die cavity, and chill 3 is located in the die cavity of sub- core 2, sub- core
2 in the die cavity of parent core 1, and the die cavity inner wall size of the exterior surface dimension of sub- core 2 and parent core 1 matches,
Bonded together between the outer surface of sub- core 2 and the die cavity inwall of parent core 1 by bonding agent.
Bonding agent used in the present embodiment is one kind in cold glue or moulding sand binder, and the thickness of sub- core 2 is 5-40mm.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of design method of the combining structure of core chill, it is characterised in that comprise the following steps：
Step a：Manufacture chill (3) is required according to casting process scheme and casting structure；
Step b：Require to complete parent core (1) according to casting process scheme and casting structure and combine the design drawing of core, institute
Stating combination core includes chill (3) and sub- core (2)；
Step c：Parent core (1) is manufactured according to the design drawing of parent core (1)；
Step d：According to the design drawing manufacture combination core of combination core, manufacture is first laid chill (3) when combining core, remanufactured
Sub- core (2)；
Step e：Core will be combined by bonding agent to bond together with parent core (1).
A kind of 2. design method of the combining structure of core chill according to claim 1, it is characterised in that step b bags
Include：
Step b1：Required to complete the design drawing of integral sand core according to casting process scheme and casting structure；
Step b2：Required to determine riding position of the chill (3) in integral sand core according to casting process scheme and casting structure, and
It is reacted in the design drawing of integral sand core；
Step b3：In the design drawing of integral sand core, the core thick 5-40mm that will be in contact with chill (3) outer surface is from whole
Splitted out in body core, complete parent core (1) and combine the design drawing of core.
3. the design method of the combining structure of a kind of core chill according to claim 1, it is characterised in that step c has
Body is：According to the design drawing of parent core (1) using 3D printing technique or cold-box core shooting core-making technique manufacture parent core
(1)。
A kind of 4. design method of the combining structure of core chill according to claim 1, it is characterised in that step d bags
Include：
Step d1：The mould needed according to the manufacture of the design drawing of sub- core (2) when manufacturing sub- core (2)；
Step d2：Chill (3) is placed on the mould of sub- core (2)；
Step d3：Core is combined according to the Making mold of chill (3) and sub- core (2).
5. the design method of the combining structure of a kind of core chill according to claim 4, it is characterised in that step d3 has
Body is：According to the mould of chill (3) and sub- core (2) using cold-box core shooting core-making technique manufacture combination core.
6. the design method of the combining structure of a kind of core chill according to claim 1, it is characterised in that step e has
Body is：By the sub- core (2) in a kind of core by combination in cold glue or sand mold binder one is bonded in parent core (1)
Rise.
A kind of 7. combining structure for the core chill that method with described in claim 1 manufactures, it is characterised in that including：
Parent core (1) and combination core；
The combination core includes sub- core (2) and chill (3)；
The combination core is bonded together by bonding agent and parent core.
A kind of 8. combining structure of core chill according to claim 7, it is characterised in that the parent core (1) and
Sub- core (2) is provided with die cavity, and the chill (3) is located in the die cavity of sub- core (2), and the sub- core (2) is located at parent
In the die cavity of core (1), and the die cavity inner wall size of the exterior surface dimension of sub- core (2) and parent core (1) matches, sub- sand
Bonded together between the outer surface of core (2) and the die cavity inwall of parent core (1) by bonding agent.
9. the combining structure of a kind of core chill according to claim 7 or 8, it is characterised in that the bonding agent is cold
One kind in glue or moulding sand binder.
A kind of 10. combining structure of core chill according to claim 7, it is characterised in that the thickness of the sub- core (2)
Spend for 5-40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080202.1A CN107745084A (en) | 2017-11-06 | 2017-11-06 | A kind of combining structure and design method of core chill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080202.1A CN107745084A (en) | 2017-11-06 | 2017-11-06 | A kind of combining structure and design method of core chill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107745084A true CN107745084A (en) | 2018-03-02 |
Family
ID=61250590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711080202.1A Pending CN107745084A (en) | 2017-11-06 | 2017-11-06 | A kind of combining structure and design method of core chill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107745084A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745087A (en) * | 2017-11-27 | 2018-03-02 | 四川共享铸造有限公司 | Core and its cold-box core shooting universal mold and manufacture method |
| CN109732041A (en) * | 2019-01-30 | 2019-05-10 | 浙江春晖复合材料有限公司 | A kind of novel die |
| CN111097876A (en) * | 2019-12-03 | 2020-05-05 | 清华大学 | Method for applying chilling block to 3D printing sand mold |
| CN111590029A (en) * | 2020-04-22 | 2020-08-28 | 共享铸钢有限公司 | Method for setting chilling blocks in 3D printing sand core |
| CN112808941A (en) * | 2020-12-30 | 2021-05-18 | 四川共享铸造有限公司 | Sand core of exhaust pipe casting and casting method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510203Y (en) * | 2001-11-15 | 2002-09-11 | 赵强 | Anti-heat crack and shrikage-porosity composite core special for aluminium-copper alloy casting |
| CN101797628A (en) * | 2009-02-06 | 2010-08-11 | 南方汇通股份有限公司 | Special sand magnetic adsorption method for core-shooting sand core upper die |
| CN103056300A (en) * | 2012-12-27 | 2013-04-24 | 天瑞集团铸造有限公司 | Production process for high-strength sand moulds and cores added with novel chill |
| CN104308156A (en) * | 2014-11-13 | 2015-01-28 | 四川南车共享铸造有限公司 | Composition for three-dimensional print casting and applications thereof |
| CN104741539A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Manufacturing process of high-strength sand mold with novel chiller added |
| CN105598380A (en) * | 2016-01-26 | 2016-05-25 | 共享装备股份有限公司 | Inner-cooling iron sand core structure for casting section mold and using method thereof |
| CN106862494A (en) * | 2017-02-28 | 2017-06-20 | 宁夏共享模具有限公司 | A kind of preparation method of the 3D printing core with direct-cooled chill |
| CN107282892A (en) * | 2017-07-21 | 2017-10-24 | 北京航星机器制造有限公司 | A kind of 3D printing core formative method of aluminium alloy castings |
-
2017
- 2017-11-06 CN CN201711080202.1A patent/CN107745084A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510203Y (en) * | 2001-11-15 | 2002-09-11 | 赵强 | Anti-heat crack and shrikage-porosity composite core special for aluminium-copper alloy casting |
| CN101797628A (en) * | 2009-02-06 | 2010-08-11 | 南方汇通股份有限公司 | Special sand magnetic adsorption method for core-shooting sand core upper die |
| CN103056300A (en) * | 2012-12-27 | 2013-04-24 | 天瑞集团铸造有限公司 | Production process for high-strength sand moulds and cores added with novel chill |
| CN104741539A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Manufacturing process of high-strength sand mold with novel chiller added |
| CN104308156A (en) * | 2014-11-13 | 2015-01-28 | 四川南车共享铸造有限公司 | Composition for three-dimensional print casting and applications thereof |
| CN105598380A (en) * | 2016-01-26 | 2016-05-25 | 共享装备股份有限公司 | Inner-cooling iron sand core structure for casting section mold and using method thereof |
| CN106862494A (en) * | 2017-02-28 | 2017-06-20 | 宁夏共享模具有限公司 | A kind of preparation method of the 3D printing core with direct-cooled chill |
| CN107282892A (en) * | 2017-07-21 | 2017-10-24 | 北京航星机器制造有限公司 | A kind of 3D printing core formative method of aluminium alloy castings |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745087A (en) * | 2017-11-27 | 2018-03-02 | 四川共享铸造有限公司 | Core and its cold-box core shooting universal mold and manufacture method |
| CN107745087B (en) * | 2017-11-27 | 2019-08-02 | 四川共享铸造有限公司 | Sand core and its cold-box core shooting universal mold and manufacturing method |
| CN109732041A (en) * | 2019-01-30 | 2019-05-10 | 浙江春晖复合材料有限公司 | A kind of novel die |
| CN111097876A (en) * | 2019-12-03 | 2020-05-05 | 清华大学 | Method for applying chilling block to 3D printing sand mold |
| CN111097876B (en) * | 2019-12-03 | 2021-06-08 | 清华大学 | Method for applying chilling block to 3D printing sand mold |
| CN111590029A (en) * | 2020-04-22 | 2020-08-28 | 共享铸钢有限公司 | Method for setting chilling blocks in 3D printing sand core |
| CN111590029B (en) * | 2020-04-22 | 2022-05-13 | 共享铸钢有限公司 | Method for setting chilling blocks in 3D printing sand core |
| CN112808941A (en) * | 2020-12-30 | 2021-05-18 | 四川共享铸造有限公司 | Sand core of exhaust pipe casting and casting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107745084A (en) | A kind of combining structure and design method of core chill | |
| CN107745087B (en) | Sand core and its cold-box core shooting universal mold and manufacturing method | |
| WO2011017864A1 (en) | Adaptive production method for mould | |
| CN108057873A (en) | The process of low pressure casting thin-walled aluminium alloy castings | |
| CN105478667B (en) | A kind of production method of water-jacket typ exhaust manifold casting sand type | |
| CN102000781A (en) | Metal mold sand coating device for casting upper mold of brake drum | |
| CN110815854A (en) | Manufacturing method and application of flexible tool for molding longitudinal and transverse T-shaped reinforcing rib workpieces | |
| CN102935488A (en) | Shell filler assisting shell manufacture in investment casting and method filling shells by adopting filler | |
| CN102009128A (en) | Metal mold sand-overlying device used for casting lower die of brake drum | |
| CN104527201A (en) | Carbon fiber sandwich gauge framework and manufacturing method thereof | |
| CN201913186U (en) | Metal mold sand coating device for casting lower shape of brake drum | |
| CN103769535B (en) | The manufacture method of core mold, core and core | |
| CN105268925B (en) | The casting group core and its formative method of a kind of compressor of air conditioner disc-like casting | |
| CN207465923U (en) | A kind of mold for manufacturing carbon fiber horn mouth pipeline | |
| CN110280722B (en) | Manufacturing method of 3D printed turbine shell runner core | |
| CN109774130A (en) | A kind of 3D printing forming graphite chill and preparation method thereof | |
| CN108296451A (en) | The parting and its parting scheme of automobile engine exhaust manifold | |
| CN107598084A (en) | A kind of secondary shooting sand core manufacturing craft and its mould used | |
| CN110802850A (en) | Forming method of composite material pipe with large slenderness ratio | |
| CN112705674A (en) | Simple method for arranging chilling blocks in 3DP printing sand mold | |
| CN106064421B (en) | A kind of complicated ceramic part forming method based on wax spray rapid hardening principle | |
| CN104494161B (en) | Manufacture method for Z-shaped structure composite material product | |
| CN109791830A (en) | Transfer modling inductance element and its manufacturing method | |
| CN111001788B (en) | Differential low-pressure pouring method for reinforcing by resin sand after core assembly | |
| CN105689652A (en) | Double-layer brake disc molding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180302 |
|
| WD01 | Invention patent application deemed withdrawn after publication |