CN204817930U - Car cylinder body core - Google Patents
Car cylinder body core Download PDFInfo
- Publication number
- CN204817930U CN204817930U CN201520470396.6U CN201520470396U CN204817930U CN 204817930 U CN204817930 U CN 204817930U CN 201520470396 U CN201520470396 U CN 201520470396U CN 204817930 U CN204817930 U CN 204817930U
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- China
- Prior art keywords
- core
- main
- main core
- base plate
- cross gate
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- Expired - Fee Related
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Casting Devices For Molds (AREA)
Abstract
The utility model discloses a car cylinder body core, including main core, the bottom plate core, main core bottom surface is because of adopting main core die coremaking to form a rule, tight real sand mould recess, main core surface dip -coating one deck graphite powder alcohol group coating, through the core drying, it is levelly and smoothly smooth to make winner's core cross the basin top surface, in the mould assembling, grind at ordinary times main core bottom surface, can not cross the wearing and tearing of basin top surface with this main core, bottom plate core owner cross gate is crossed the basin with main core and is corresponded from top to bottom, basin top surface dope layer is crossed to main core has the effect of scour protection sand, can not the sand washing during pouring, thereby reduce car cylinder body blowholes defect, adopt the utility model discloses carry out the car cylinder body core machine tooling, the useless rate of processing blowholes material is fallen for 1.3% by original 2.7%, and blowholes rewelding rate is fallen for 3% by original 8%.
Description
Technical field
The utility model relates to a kind of sand mold casting mold, particularly a kind of motor cylinder block core body.
Background technology
Sand casting is that main Modeling Material makes casting mold with molding sand and core sand, and liquid metal under gravity filling casting mold goes up the method for producing foundry goods.Its master operation comprises: manufacture apperance, prepare Modeling Material, moulding, make core, mould assembly, melting, cast, knockout, cleaning and inspection etc.
Existing motor cylinder block is produced and is adopted self-hardening resin sand molding production technology, and at mould assembling station, with corner, cubing comparison main core bottom surface thickness, the especially main core of 465Q series cylinder body, by manually polishing main core on flat board.Usually main core bottom surface and base plate cross gate corresponding position molding sand can be caused to loosen polishing in correcting process, during cast, surface is dredged sand and is poured in type with molten iron, causes product sand holes defect, causes cylinder body passing rate of processing to reduce.
Utility model content
In order to reduce motor cylinder block sand holes percent defective, especially for 465Q series cylinder body, improve Product processing qualification rate, the utility model provides a kind of motor cylinder block core body, comprises main core, base plate core; Main core comprises a horizontal base, cylinder, and described horizontal base is made up of cuboid, and respectively arrange two little cuboids at cuboid broadside, described cylinder is connected with horizontal base; Base plate core comprises base plate, the main cross gate be arranged on base plate, limit cross gate, ingate; A groove running through long limit is had in the middle part of main core horizontal base.Adopt this groove structure.Core sand bottom winner's core can not be washed away by molten iron when pouring into a mould, reducing cylinder body sand holes defect.
Preferably according to the motor cylinder block core body of optimum embodiment of the present utility model, the groove of main core horizontal base is corresponding with the main cross gate on described base plate core.
Preferably according to the motor cylinder block core body of optimum embodiment of the present utility model, main core horizontal base is that the left-right parts of symmetry axis segmentation is corresponding with the part that base plate core surrounds for symmetry axis limit cross gate with main cross gate with groove.
Preferably according to the motor cylinder block core body of optimum embodiment of the present utility model, the material of main core, base plate core is furan no-bake resin sand.
Preferably according to the motor cylinder block core body of optimum embodiment of the present utility model, main core, main core horizontal base central slot inner top surface have one deck graphite powder alcohol-base paint layer.Main core is through this coating of dip-coating, and after baking, cross water groove inner top surface dope layer smooth, smooth, the performance of flushing of resistance to molten iron promotes.
Preferably according to the motor cylinder block core body of optimum embodiment of the present utility model, the main cross gate on base plate core, limit cross gate form " ± " shape on base plate.
The utility model motor cylinder block core body, because forming the sand mold groove of a rule, consolidation after adopting main core mold coremaking in main core bottom surface, main wicking surface dip-coating one deck graphite powder alcohol-base paint, through core drying, winner's core is made to cross tank end face flat smooth, when mould assembling, main core bottom surface polish, this main core can not be crossed the wearing and tearing of tank end face, it is corresponding up and down that tank crossed by main cross gate and main core, tank top coat layer crossed by main core anti-sand washing effect, can not sand washing during cast, thus reduce motor cylinder block sand holes defect.Adopt the utility model to carry out the machined of motor cylinder block core body, motor cylinder block processing sand holes material rate of giving up reduces to 1.3% by original 2.7%, and sand holes rewelding rate reduces to 3% by original 8%.
Accompanying drawing explanation
Fig. 1 is main core mold schematic diagram;
Fig. 2 arranges cuboid schematic diagram at main core mold top;
Fig. 3 is the main core schematic diagram utilizing main core mold to make;
Fig. 4 is base plate core schematic diagram;
Fig. 5 is that main core and base plate core combine schematic diagram;
Fig. 6 is mould assembling schematic diagram;
Fig. 7 is running gate system schematic diagram;
In figure: the left core box of 1-; The right core box of 2-; The main core base plate of 3-; The rectangular aluminium sheet of 4-; 5-base plate core; The main cross gate of 6-; The main core of 7-; 8-groove; 9-termination core; The left outside type of 10-; 11-water oil duct core; The right outside type of 12-; 13-sprue; Tank crossed by the main core of 14-; 15-ingate; 16-limit cross gate;
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is a kind of mould making the main core of motor cylinder block core body, comprise main core base plate 3, left core box 1, right core box 2, on main core mold end face both sides, Central Symmetry arranges a notch, and two notches are of a size of 51mm (length) × 18mm (wide) × 5mm (height).When Fig. 2 is for making motor cylinder block core body main core, a rectangular aluminium sheet 4 is placed at notch place, aluminium sheet is of a size of 400mm × 50mm × 10mm, main core is furan no-bake resin sand, the main core 7 (Fig. 3) of the main core of motor cylinder block core body produced, form a groove 8 in the middle part of main core bottom surface, groove size is 167mm × 50mm × 5mm.
Fig. 4 is base plate core 5, and this base plate core is furan no-bake resin sand.Fig. 5 is motor cylinder block core body described in the utility model, combined by main core 7, base plate core 5, on base plate core, to cross tank about 14 corresponding overlapping main cross gate 6 and main core bottom surface, and main core horizontal base is that the left-right parts of symmetry axis segmentation is corresponding with the part that base plate core surrounds for symmetry axis limit cross gate with main cross gate with groove.
Fig. 6 is mould assembling diagram, termination core 9 combination is bonded in main core 7, main wicking surface dip-coating one deck graphite powder alcohol-base paint, and after baking, main core 7 polishes on mould assembling flat board, concordant with corner, cubing comparison main core bottom surface thickness, then combine with base plate core 5, left outside type 10, right outside type 12.
Fig. 7 is running gate system schematic diagram: be made up of sprue 13, main cross gate 6, limit cross gate 16, ingate 15, when pouring into a mould, molten iron enters main cross gate 6 from top to bottom from sprue 13, again by limit cross gate 16, molten iron enters to directly watering full casting mold in type by four ingates 19 respectively, forms cast product.
It is corresponding overlapping that tank about 11 crossed by main cross gate 6 and main core, the sand mold groove 8 of main core bottom surface because adopting main core mold coremaking to form a rule, consolidation, and namely tank 11 crossed by main core; Main wicking surface dip-coating one deck graphite powder alcohol-base paint, through core drying, makes winner's core cross tank end face flat smooth, when mould assembling, main core bottom surface polish, because of fluted protection, this main core can not be crossed the wearing and tearing of tank end face; It is corresponding that tank about 11 crossed by the main cross gate of base plate core 6 and main core, and tank end face 11 dope layer crossed by main core anti-sand washing effect, can not sand washing during cast, thus reduce motor cylinder block sand holes defect.
Claims (6)
1. a motor cylinder block core body, comprises main core, base plate core;
Described main core comprises a horizontal base, cylinder, and described horizontal base is made up of cuboid, and respectively arrange two little cuboids at cuboid broadside, described cylinder is connected with horizontal base;
Described base plate core comprises base plate, the main cross gate be arranged on base plate, limit cross gate, ingate;
It is characterized in that there is a groove running through long limit in the middle part of described main core horizontal base.
2. a kind of motor cylinder block core body as claimed in claim 1, is characterized in that, the groove of described main core horizontal base is corresponding with the main cross gate on described base plate core.
3. a kind of motor cylinder block core body as claimed in claim 1, is characterized in that, described main core horizontal base is that the left-right parts of symmetry axis segmentation is corresponding with the part that base plate core surrounds for symmetry axis limit cross gate with main cross gate with groove.
4. a kind of motor cylinder block core body as claimed in claim 1, is characterized in that, the material of described main core, base plate core is furan no-bake resin sand.
5. a kind of motor cylinder block core body as claimed in claim 1 or 2, is characterized in that, described main core, main core horizontal base central slot inner top surface have one deck graphite powder alcohol-base paint layer.
6. a kind of motor cylinder block core body as claimed in claim 1 or 2, is characterized in that, the main cross gate on described base plate core, limit cross gate form " ± " shape on base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520470396.6U CN204817930U (en) | 2015-07-02 | 2015-07-02 | Car cylinder body core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520470396.6U CN204817930U (en) | 2015-07-02 | 2015-07-02 | Car cylinder body core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204817930U true CN204817930U (en) | 2015-12-02 |
Family
ID=54675572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520470396.6U Expired - Fee Related CN204817930U (en) | 2015-07-02 | 2015-07-02 | Car cylinder body core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204817930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734962A (en) * | 2017-02-07 | 2017-05-31 | 成都佰富隆精工机械有限公司 | 465Q motor cylinder castings mould assembling seat core mold, seat core and casting method |
-
2015
- 2015-07-02 CN CN201520470396.6U patent/CN204817930U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734962A (en) * | 2017-02-07 | 2017-05-31 | 成都佰富隆精工机械有限公司 | 465Q motor cylinder castings mould assembling seat core mold, seat core and casting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20180702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |