CN107812895A - A kind of method of salt core compacting tool set and its salt core of manufacture and its manufacture salt core - Google Patents
A kind of method of salt core compacting tool set and its salt core of manufacture and its manufacture salt core Download PDFInfo
- Publication number
- CN107812895A CN107812895A CN201711284112.4A CN201711284112A CN107812895A CN 107812895 A CN107812895 A CN 107812895A CN 201711284112 A CN201711284112 A CN 201711284112A CN 107812895 A CN107812895 A CN 107812895A
- Authority
- CN
- China
- Prior art keywords
- horizontal groove
- salt core
- groove
- dip mold
- die cavity
- 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.)
- Granted
Links
- 150000003839 salts Chemical group 0.000 title claims abstract description 91
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 2
- 239000004115 Sodium Silicate Substances 0.000 claims 1
- 229910052911 sodium silicate Inorganic materials 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B22C9/105—Salt cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/06—Core boxes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of method of salt core compacting tool set and its salt core of manufacture and its manufacture salt core.Dip mold internal model of the present invention is provided with horizontal groove I, horizontal groove II, vertical groove I；Dip mold external mold is provided with horizontal groove III, horizontal groove IV, vertical groove II；Horizontal groove I, two vertical grooves I connected with horizontal groove I, horizontal groove III, two vertical grooves II that are connected with horizontal groove III are collectively forming the first die cavity；Horizontal groove II, two vertical grooves I connected with horizontal groove II, horizontal groove IV, two vertical grooves II that are connected with horizontal groove IV are collectively forming the second die cavity；The bottom surface of upper press mold is provided with horizontal groove V, horizontal groove VI；Forming salt core chamber I after horizontal groove V docks with the first die cavity, forming salt core chamber II after horizontal groove VI docks with the second die cavity；Dip mold internal model is provided with the positioning hole being connected with vertical groove I.The present invention can once suppress the salt core of two semicircular structures with thin-wall copper pipe.
Description
Technical field
The present invention relates to Piston Salt Core manufacturing technology field, more particularly, to a kind of salt core compacting tool set and its manufacture
The method of salt core and its manufacture salt core.
Background technology
And piston plays ten as one important core component of internal combustion engine, the quality of its performance for engine performance
Divide important effect.In order to reduce piston crown temperature, the reliability under the conditions of piston high temperature working in reciprocating mode, the high property in part are improved
Energy engine piston is using double fuel feed hole, double fuel-displaced pore structure inner cooling paths, so that machine oil can be in the working in reciprocating mode of piston
Do not shunt, increase oil inlet quantity, improve cooling effectiveness.Structure in the prior art be present for simple annular rotary structure
Salt core, still, such salt core can only suppress one of end surface shape, other end shape during being suppressed with compacting tool set
Shape needs to complete by following process, and thin-wall copper pipe positioning hole needed for assembling needs, by drill carriage machine-shaping, to suppress
Journey is sufficiently complex.
The content of the invention
In order to make up the deficiencies in the prior art, the invention provides a kind of salt core compacting tool set and its salt core of manufacture and its
The method for manufacturing salt core.
The technical solution adopted by the present invention is：
A kind of salt core compacting tool set, including top die, dip mold internal model and dip mold external mold；
The horizontal groove I along the extension of its axis direction, horizontal groove are arranged with the top of the outer wall of the dip mold internal model
II, the horizontal groove I, horizontal groove II are nearly semicircle, and the horizontal groove I, two free ends of horizontal groove II are equal
Downward transition extends to form vertical groove I；
The horizontal groove III along the extension of its axis direction, horizontal groove are respectively equipped with the top of the inwall of the dip mold external mold
IV, the horizontal groove III, the downward transition in two free ends of horizontal groove IV extend to form vertical groove II；The level is recessed
Groove III is adapted with horizontal groove I, and the horizontal groove IV is adapted with horizontal groove II, the vertical groove II with it is vertical recessed
Groove I is adapted；
The horizontal groove I, two vertical grooves I being connected with horizontal groove I, horizontal groove III and with horizontal groove III
Two vertical grooves II being connected are collectively forming the first die cavity；The horizontal groove II, two to be connected with horizontal groove II
Individual vertical groove I, horizontal groove IV and two vertical grooves II being connected with horizontal groove IV are collectively forming the second die cavity；
Further respectively had on the bottom surface of the upper press mold horizontal groove V corresponding with the first die cavity and with the second die cavity phase
Corresponding horizontal groove VI；Forming salt core chamber I after the horizontal groove V docks with the first die cavity, the horizontal groove VI with
Forming salt core chamber II after the docking of second die cavity；
It is vertical on the outer wall of the dip mold internal model of the lower section of vertical groove I to be provided with positioning hole, the positioning hole and vertical groove I
It is connected.
Preferably, boss I is equipped with the top end face of the dip mold internal model, four edges of the boss I are all provided with
There is the breach corresponding with vertical groove I；The top end face of the dip mold external mold is provided with the boss II corresponding with boss I,
Four edges of the boss II are equipped with the breach corresponding with vertical groove II.
Preferably, the salt core chamber I, the mold cavity volume ratio of salt core chamber II are 1：（1+0.6）.
Preferably, the dip mold inner membrance is provided with alignment pin, and the dip mold external mold is provided with and is adapted with alignment pin
Anti-rotational locating slot.
Preferably, it is additionally provided with horizontal passage in the dip mold internal model.
Preferably, the upper press mold is provided with the air-vent of longitudinal direction.
A kind of salt core as manufactured by above-mentioned salt core compacting tool set, including nearly semi-circular structure, the two of the nearly semi-circular structure
The downward transition in end forms revolving body, and the lower end of the revolving body is equipped with thin-wall copper pipe, nearly semi-circular structure, the nearly semicircle knot
The revolving body and thin-wall copper pipe that structure both ends are provided with are once compressing.
A kind of method that salt core is manufactured by above-mentioned salt core compacting tool set, comprises the following steps：
1）Suppress salt core integral workblank：
1. salt core compacting tool set is installed in place, dip mold external mold and dip mold internal model are adjusted into good position, ensure that die parting line is concordant；
2. it is put into thin-wall copper pipe in the positioning hole of dip mold internal model；
3. the salt fines prepared are added in the first die cavity that dip mold external mold and dip mold internal model are formed, the second die cavity, then
Upper surface is struck off with scraper plate；
4. top die presses down, moulding pressure is 8 ± 1MPa, dwell time 1S；
5. and then top die is run up, rear dip mold internal model ejects salt core blank in place.
2）Deburring processing is carried out to salt core blank；
3）Salt core blank is sintered, is heated to 650 ± 10 DEG C, is incubated 2 ± 0.5 hours；
4）The salt core that sintering finishes is put into heat preservation for standby use in 80 DEG C~100 DEG C incubators.
Preferably, according to weight ratio, the salt fines include 94.2% salt material, 5% ceramic additive and 0.8% water
Glass binder.
Compared with prior art, its advantage is the present invention：
1st, compacting tool set of the present invention uses a mould two-chamber symmetrical structure, and the present invention can once suppress two half with thin-wall copper pipe
The salt core of circular configuration, production efficiency are high；Compacting tool set of the present invention is provided with positioning hole, by salt core body and can be put into fixed
Thin-wall copper pipe in the hole of position is once compressing, is allowed to be formed and piston mould without carrying out following process to salt core body again
Has the positioning hole being adapted；In addition, for compressing salt core blank, then do not need follow-up car process i.e. reachable
To finished size, it can accurately ensure salt core height；
2nd, in the present invention boss I and boss II setting, can be achieved salt core nearly semi-circular structure part and revolution body portion etc.
Compression ratio is suppressed；
3rd, salt core to be once compressing, is allowed to be formed and piston in follow-up assembling process without be processed again in the present invention
The positioning hole that mould is adapted.
Brief description of the drawings
Fig. 1 is the section figure structure schematic representation of salt core compacting tool set of the present invention；
Fig. 2 is the structural representation of upper press mold in Fig. 1 of the present invention；
Fig. 3 is the structural representation of dip mold internal model in Fig. 1 of the present invention；
Fig. 4 is the structural representation of dip mold external mold in Fig. 1 of the present invention；
Fig. 5 is the structural representation of salt core.
In figure：1st, top die, 2, dip mold internal model, 3, dip mold external mold, 4, horizontal groove I, 5, horizontal groove II, 6, perpendicular
Straight groove I, 7, horizontal groove III, 8, horizontal groove IV, 9, vertical groove II, 10, the first die cavity, the 11, second die cavity, 12, water
Flat grooves V, 13, horizontal groove VI, 14, positioning hole, 15, boss I, 16, breach, 17, boss II, 18, alignment pin, 19, anti-rotation
Turn locating slot, 20, passage, 21, air-vent, 22, nearly semi-circular structure, 23, revolving body, 24, thin-wall copper pipe.
Embodiment
As shown in Fig. 1,2,3,4,5, outside a kind of salt core compacting tool set, including top die 1, dip mold internal model 2 and dip mold
Mould 3；
The horizontal groove I 4 along the extension of its axis direction, horizontal groove II are arranged with the top of the outer wall of dip mold internal model 2
5, horizontal groove I 4, horizontal groove II 5 are nearly semicircle, horizontal groove I 4, the downward mistake in two free ends of horizontal groove II 5
Cross extension and form vertical groove I 6；
The horizontal groove III 7 along the extension of its axis direction, horizontal groove IV are respectively equipped with the top of the inwall of dip mold external mold 3
8, the downward transition in two free ends of horizontal groove III 7 and two free ends of horizontal groove IV 8 extends to form vertical groove II
9；Horizontal groove III 7 is adapted with horizontal groove I 4, and horizontal groove IV 8 is adapted with horizontal groove II 5, vertical groove II 9 with
Vertical groove I 6 is adapted；
Horizontal groove I 4, two vertical grooves I 6 being connected with horizontal groove I 4, horizontal groove III 7 and with horizontal groove III
7 two vertical grooves II 9 being connected are collectively forming the first die cavity 10；Horizontal groove II 5, it is connected with horizontal groove II 5
Two vertical grooves I 6, horizontal groove IV 8 and two vertical grooves II 9 being connected with horizontal groove IV 8 are collectively forming
Two die cavities 11；
Further respectively had on the bottom surface of upper press mold 1 horizontal groove V 12 corresponding with the first die cavity 10 and with the second die cavity 11
Corresponding horizontal groove VI 13；Forming salt core chamber I, horizontal groove VI 13 after horizontal groove V 12 docks with the first die cavity 10
Forming salt core chamber II after being docked with the second die cavity 115；
It is vertical on the outer wall of the dip mold internal model 1 of the lower section of vertical groove I 6 to be provided with positioning hole 14, positioning hole 14 and vertical groove I 6
It is connected.
Be equipped with boss I 15 on the top end face of dip mold internal model 2, four edges of boss I 15 be equipped with it is vertical recessed
The corresponding breach 16 of groove I 6；The top end face of dip mold external mold 3 is provided with the boss II 17 corresponding with boss I 15, boss II
17 four edges are equipped with the breach 16 corresponding with vertical groove II 9.
Salt core chamber I, the mold cavity volume ratio of salt core chamber II are 1：（1+0.6）.
Dip mold inner membrance 2 is provided with alignment pin 18, and dip mold external mold 3 is anti-rotational fixed provided with being adapted with alignment pin 18
Position groove 19.
Horizontal passage 20 is additionally provided with dip mold internal model 2, upper press mold 1 is provided with the air-vent 21 of longitudinal direction.
A kind of salt core as manufactured by above-mentioned salt core compacting tool set, including nearly semi-circular structure 22, the two of nearly semi-circular structure 22
The downward transition in end forms revolving body 23, and the lower end of revolving body 23 is equipped with thin-wall copper pipe 24, nearly semi-circular structure 22, nearly semicircle knot
The revolving body 23 and thin-wall copper pipe 24 that the both ends of structure 22 are provided with are once compressing.
A kind of method that salt core is manufactured by above-mentioned salt core compacting tool set, comprises the following steps：
1）Suppress salt core integral workblank：
1. salt core compacting tool set is installed in place, dip mold external mold 3 and dip mold internal model 2 are adjusted into good position, ensure that die parting line is put down
Together；
2. it is put into thin-wall copper pipe 24 in the positioning hole 14 of dip mold internal model 2；
3. the salt prepared is added in the first die cavity 10 that dip mold external mold 3 and dip mold internal model 2 are formed, the second die cavity 11
Powder, then upper surface is struck off with scraper plate；
6. top die 1 presses down, moulding pressure is 8 ± 1MPa, dwell time 1S；
7. and then top die 1 is run up, rear dip mold internal model 2 ejects salt core blank in place.
2）Deburring processing is carried out to salt core blank；
3）Salt core blank is sintered, is heated to 650 ± 10 DEG C, is incubated 2 ± 0.5 hours；
4）The salt core that sintering finishes is put into heat preservation for standby use in 80 DEG C~100 DEG C incubators.
Wherein, according to weight ratio, the salt fines prepared include 94.2% salt material, 5% ceramic additive and 0.8% water glass
Glass binding agent.
Claims (9)
1. a kind of salt core compacting tool set, including top die, dip mold internal model and dip mold external mold；It is characterized in that：
The horizontal groove I along the extension of its axis direction, horizontal groove are arranged with the top of the outer wall of the dip mold internal model
II, the horizontal groove I, horizontal groove II are nearly semicircle, and the horizontal groove I, two free ends of horizontal groove II are equal
Downward transition extends to form vertical groove I；
The top of the inwall of the dip mold external mold is provided with the horizontal groove III and horizontal groove being adapted with horizontal groove I
II horizontal groove IV being adapted and the vertical groove II being adapted with vertical groove I；
The horizontal groove I, two vertical grooves I being connected with horizontal groove I, horizontal groove III and with the phase of horizontal groove III
Two vertical grooves II of connection are collectively forming the first die cavity；The horizontal groove II, two to be connected with horizontal groove II are vertical
Groove I, horizontal groove IV and two vertical grooves II that are connected with horizontal groove IV are collectively forming the second die cavity；
Further respectively had on the bottom surface of the upper press mold horizontal groove V corresponding with the first die cavity and with the second die cavity phase
Corresponding horizontal groove VI；Forming salt core chamber I after the horizontal groove V docks with the first die cavity, the horizontal groove VI with
Forming salt core chamber II after the docking of second die cavity；
It is vertical on the outer wall of the dip mold internal model of the lower section of vertical groove I to be provided with positioning hole, the positioning hole and vertical groove I
It is connected.
2. salt core compacting tool set according to claim 1, it is characterised in that：It is equipped with the top end face of the dip mold internal model
Boss I, four edges of the boss I are equipped with the breach corresponding with vertical groove I；The top of the dip mold external mold
Face is provided with the boss II corresponding with boss I, and four edges of the boss II are equipped with corresponding with vertical groove II
Breach.
3. salt core compacting tool set according to claim 1, it is characterised in that：The salt core chamber I, the die cavity of salt core chamber II
Volume ratio is 1：（1+0.6）.
4. salt core compacting tool set according to claim 1, it is characterised in that：The dip mold inner membrance is provided with alignment pin, institute
State dip mold external mold and be provided with the anti-rotational locating slot being adapted with alignment pin.
5. salt core compacting tool set according to claim 1, it is characterised in that：Horizontal lead to is additionally provided with the dip mold internal model
Stomata.
6. salt core compacting tool set according to claim 1, it is characterised in that：The upper press mold is provided with the air-vent of longitudinal direction.
A kind of 7. salt core manufactured by salt core compacting tool set as described in any one of claim 1 to 6, it is characterised in that：Including
Nearly semi-circular structure, the downward transition in both ends of the nearly semi-circular structure form revolving body, and the lower end of the revolving body is equipped with thin
Wall copper pipe, the revolving body and thin-wall copper pipe that the nearly semi-circular structure, nearly semi-circular structure both ends are provided with are once compressing.
8. a kind of method of salt core compacting tool set manufacture salt core as described in any one of claim 1 to 6, it is characterised in that：Bag
Include following steps：
1）Suppress salt core integral workblank；
1. salt core compacting tool set is installed in place, dip mold external mold and dip mold internal model are adjusted into good position, ensure that die parting line is concordant；
2. it is put into thin-wall copper pipe in the positioning hole of dip mold internal model；
3. the salt fines prepared are added in the first die cavity that dip mold external mold and dip mold internal model are formed, the second die cavity, then
Upper surface is struck off with scraper plate；
Top die presses down, and moulding pressure is 8 ± 1MPa, dwell time 1S；
Then top die is run up, and rear dip mold internal model ejects salt core blank in place；
2）Deburring processing is carried out to salt core blank；
3）Salt core blank is sintered, is heated to 650 ± 10 DEG C, is incubated 2 ± 0.5 hours；
4）The salt core that sintering finishes is put into heat preservation for standby use in 80 DEG C~100 DEG C incubators.
9. the method for salt core compacting tool set manufacture salt core according to claim 8, it is characterised in that：According to weight ratio, institute
Stating salt fines includes 94.2% salt material, 5% ceramic additive and 0.8% sodium silicate binder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711284112.4A CN107812895B (en) | 2017-12-07 | 2017-12-07 | Salt core pressing die, salt core manufactured by same and method for manufacturing salt core by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711284112.4A CN107812895B (en) | 2017-12-07 | 2017-12-07 | Salt core pressing die, salt core manufactured by same and method for manufacturing salt core by same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107812895A true CN107812895A (en) | 2018-03-20 |
| CN107812895B CN107812895B (en) | 2023-07-11 |
Family
ID=61605413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711284112.4A Active CN107812895B (en) | 2017-12-07 | 2017-12-07 | Salt core pressing die, salt core manufactured by same and method for manufacturing salt core by same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107812895B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994262A (en) * | 2018-08-30 | 2018-12-14 | 湖南江滨机器（集团）有限责任公司 | Cooling oil duct salt core sintering method in a kind of aluminum piston |
| CN109570498A (en) * | 2018-11-16 | 2019-04-05 | 滨州渤海活塞有限公司 | A kind of tilting band notch salt core compacting tool set in the same direction and manufacturing process |
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| KR100685864B1 (en) * | 2005-11-09 | 2007-02-22 | 김희수 | Salt core for forming oil gallery of engine piston |
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| CN107262674A (en) * | 2017-07-04 | 2017-10-20 | 湖南江滨机器（集团）有限责任公司 | A kind of salt core pressing mold and salt core, manufacturing method |
| CN207787618U (en) * | 2017-12-07 | 2018-08-31 | 滨州渤海活塞有限公司 | A kind of salt core compacting tool set and its salt core of manufacture |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05318025A (en) * | 1992-05-18 | 1993-12-03 | Unisia Jecs Corp | Manufacture of piston for internal combusion engine |
| KR100685864B1 (en) * | 2005-11-09 | 2007-02-22 | 김희수 | Salt core for forming oil gallery of engine piston |
| CN201677001U (en) * | 2010-03-30 | 2010-12-22 | 山东滨州渤海活塞股份有限公司 | Salt core compacting tool set designed by proportional cavity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994262A (en) * | 2018-08-30 | 2018-12-14 | 湖南江滨机器（集团）有限责任公司 | Cooling oil duct salt core sintering method in a kind of aluminum piston |
| CN109570498A (en) * | 2018-11-16 | 2019-04-05 | 滨州渤海活塞有限公司 | A kind of tilting band notch salt core compacting tool set in the same direction and manufacturing process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107812895B (en) | 2023-07-11 |
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Denomination of invention: A salt core pressing mold and its manufactured salt core, as well as a method for manufacturing salt cores thereof Granted publication date: 20230711 Pledgee: Binzhou branch of China CITIC Bank Co.,Ltd. Pledgor: BINZHOU BOHAI PISTON Co.,Ltd. Registration number: Y2024980014544 |