CN203044807U - Sand core mold structure of engine cylinder block - Google Patents
Sand core mold structure of engine cylinder block Download PDFInfo
- Publication number
- CN203044807U CN203044807U CN 201320081158 CN201320081158U CN203044807U CN 203044807 U CN203044807 U CN 203044807U CN 201320081158 CN201320081158 CN 201320081158 CN 201320081158 U CN201320081158 U CN 201320081158U CN 203044807 U CN203044807 U CN 203044807U
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- core
- cylinder
- coating
- cylinder block
- cylinder barrel
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- Expired - Fee Related
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- Mold Materials And Core Materials (AREA)
Abstract
A sand core mold structure of an engine cylinder block aims at improving the surface roughness of a workpiece. The technical scheme of the utility model is as follows: a main sand core is characterized in that a front end core of the cylinder block is fixed at one side of a cylinder tube filler unit, a sprue core of the cylinder block is fixed at the other side of the cylinder tube filler unit, a water jacket core of the cylinder block is fixed between the sprue core of the cylinder block and the cylinder tube filler unit, a feeder head core of the cylinder block is fixed at the upper end of each cylinder tube filler of the cylinder tube filler unit, and a dip-coating layer is adhered on the surface of the main sand core. The sand core mold structure of the engine cylinder block has the beneficial effects that paint is saved, the production cost is reduced, gaps between the sand cores can be filled through whole dip-coating operation, burr and flashing of a casting piece are reduced, the grinding workload can be reduced and the surface roughness of the workpiece is improved.
Description
Technical field
The utility model belongs to motor car engine placing field, specifically a kind of core mold structure of using the engine cylinder-body of whole dip-coating in the automobile engine production process.
Background technology
Development and progress along with society, engine casting field technology is ripe already, especially the surface roughness to some precise parts requires also more and more higher, use molding sand to do sand mo(u)ld in the prior art, when cast, have the grains of sand and incorporate molten iron, cause piece surface rough and uneven in surface, have a strong impact on the surface roughness of part.The coating of sand mold and fuse brushing provides a good surface smoothness to foundry goods, thereby can reduce cleaning as far as possible, repairs number of times, cost and might improve metallurgical quality.Importantly, coating forms impervious, the stable flame retardant coating of one deck between molten iron and molding sand, thereby has avoided molten steel infiltration, scab and erosion.Under some situation, austenitic manganese steel for example, special coating has hindered the reaction between molten steel and the molding sand, thus it is satisfactory to produce cast(ing) surface fineness.
Summary of the invention
The purpose of this utility model provides a kind of core mold structure of using the engine cylinder-body of whole dip-coating in the automobile engine production process.
Technical solutions of the utility model are: main core is the side stationary housing front end core in cylinder barrel core group, the opposite side stationary housing sprue core of cylinder barrel core group, between cylinder body sprue core and the cylinder barrel core group cylinder body water jacket core is arranged fixedly, a cylinder body rising head core is all fixed in each cylinder barrel core upper end of cylinder barrel core group; In main core surface attachment the dip-coating coating is arranged.The dip-coating coating is fireproof coating or high temperature resistant oil film.Cylinder barrel core group is made up of four cylinder barrel cores that are arranged in a row at least.
With the dip-coating suspender sand mold is sling, with wooden stick that the exhaust stopple of jacket core and push rod core core print is good, cylinder barrel is put into coatings tank down slowly, till coating did not just have cross gate, promote suspender and make the sand mold release coating, several down suspenders that swing fall residual coating drop, after the dip-coating sand mold are placed on the surface drying frame.
The coating of sand mold and fuse brushing provides a good surface smoothness to foundry goods, thereby can reduce cleaning as far as possible, repairs number of times, cost and might improve metallurgical quality.Importantly, coating forms impervious, the stable flame retardant coating of one deck between molten iron and molding sand, thereby has avoided molten steel infiltration, scab and erosion.Under some situation, austenitic manganese steel for example, special coating has hindered the reaction between molten steel and the molding sand, thus it is satisfactory to produce cast(ing) surface fineness.
The utlity model has following advantage: will need single core dip-coating to change whole dip-coating into originally, and save time and labour; To originally not need the mating surface of two cores of dip-coating to remove dip-coating from, saved coating, reduced production cost.Whole dip-coating can be filled up the slit between core, reduces the burr of foundry goods, thereby will polish workload less, has shortened the production cycle.
Description of drawings
Fig. 1 is structural representation sketch of the present utility model;
Fig. 2 is the A portion enlarged drawing of Fig. 1.
The utility model is described in further detail by example below in conjunction with accompanying drawing; but following example only is the utility model example wherein; do not represent the right protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claims.
The specific embodiment
Example 1
By shown in Figure 1, main core 1 is the side stationary housing front end core 3 in cylinder barrel core group 2, the opposite side stationary housing sprue core 4 of cylinder barrel core group fixedly has cylinder body water jacket core 5 between cylinder body sprue core and the cylinder barrel core group, and a cylinder body rising head core 6 is all fixed in each cylinder barrel core upper end of cylinder barrel core group; In main core surface attachment dip-coating coating 7 is arranged.The dip-coating coating is fireproof coating or high temperature resistant oil film.Cylinder barrel core group is made up of four cylinder barrel cores that are arranged in a row at least.
Operation principle: will organize good main body core and be put in the coatings tank, be that cylinder barrel enters coatings tank downwards, dip-coating is arrived till the position of cross gate, promotes suspender core is proposed coatings tank, and it is several following to swing then, purpose is that the coating control with core groove place pocket goes out, putting 2-3 minute core is static, drop falls the unnecessary coating in surface, in order to avoid cause the accumulation of coating when sand mold turned, influence the quality of foundry goods, even cause scrapping of foundry goods.
The coating of sand mold and fuse brushing provides a good surface smoothness to foundry goods, thereby can reduce cleaning as far as possible, repairs number of times, cost and might improve metallurgical quality.Importantly, coating forms impervious, the stable flame retardant coating of one deck between molten iron and molding sand, thereby has avoided molten steel infiltration, scab and erosion.Under some situation, austenitic manganese steel for example, special coating has hindered the reaction between molten steel and the molding sand, thus it is satisfactory to produce cast(ing) surface fineness.
Claims (3)
1. the core mold structure of engine cylinder-body, it comprises by cylinder body front end core, cylinder body rising head core, cylinder barrel core group, cylinder body sprue core, the main core that the cylinder body water jacket core is formed, it is characterized in that: main core is the side stationary housing front end core in cylinder barrel core group, the opposite side stationary housing sprue core of cylinder barrel core group fixedly has the cylinder body water jacket core between cylinder body sprue core and the cylinder barrel core group, and a cylinder body rising head core is all fixed in each cylinder barrel core upper end of cylinder barrel core group; In main core surface attachment the dip-coating coating is arranged.
2. the core mold structure of engine cylinder-body according to claim 1, it is characterized in that: described dip-coating coating is fireproof coating or high temperature resistant oil film.
3. the core mold structure of engine cylinder-body according to claim 1, it is characterized in that: described cylinder barrel core group is made up of four cylinder barrel cores that are arranged in a row at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320081158 CN203044807U (en) | 2013-02-22 | 2013-02-22 | Sand core mold structure of engine cylinder block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320081158 CN203044807U (en) | 2013-02-22 | 2013-02-22 | Sand core mold structure of engine cylinder block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203044807U true CN203044807U (en) | 2013-07-10 |
Family
ID=48727804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320081158 Expired - Fee Related CN203044807U (en) | 2013-02-22 | 2013-02-22 | Sand core mold structure of engine cylinder block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203044807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734924A (en) * | 2016-11-23 | 2017-05-31 | 国营第六六厂 | The large-scale snakelike running channel one-step moulding method of housing class casting |
-
2013
- 2013-02-22 CN CN 201320081158 patent/CN203044807U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734924A (en) * | 2016-11-23 | 2017-05-31 | 国营第六六厂 | The large-scale snakelike running channel one-step moulding method of housing class casting |
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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: 20130710 Termination date: 20210222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |