CN204386752U - A kind of passenger car lightweight air cylinder sleeve of engine - Google Patents
A kind of passenger car lightweight air cylinder sleeve of engine Download PDFInfo
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- CN204386752U CN204386752U CN201420853960.8U CN201420853960U CN204386752U CN 204386752 U CN204386752 U CN 204386752U CN 201420853960 U CN201420853960 U CN 201420853960U CN 204386752 U CN204386752 U CN 204386752U
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Abstract
The utility model belongs to a kind of passenger car lightweight air cylinder sleeve of engine and preparation method thereof, cylinder liner outer round surface is distributed with pit, the shape of pit comprises dumbbell shaped, just puts cone table shape, vermiform, olecranon shape four kinds of shapes, the pit of four kinds of shapes is in cylinder liner outer round surface random distribution, and the height of pit is 0.25mm ~ 1.1mm.The utility model cylinder liner pit height only has 0.25 ~ 1.1mm, significantly reduces the blank rate of cooling in Cylinder Sleeve by Centrifugal Casting process, thus significantly improves metallographic structure, improves the antifriction performance of cylinder liner, extends the working life of cylinder liner; Because the height fluctuation of pit is less, in aluminum cylinder casting process, circularity fluctuation significantly reduces, and decreases the possibility that firing chamber scurried into by machine oil, decreases firing chamber exhaust emissions; Low height pit and excellent metallographic structure, can make cylinder liner wall thickness reduce 1mm, makes cylinder sleeve of engine cylinder pintch reduce more than 2mm.
Description
Technical field
The utility model belongs to passenger vehicle engine field, is specifically related to a kind of passenger car lightweight air cylinder sleeve of engine.
Background technique
Haze weather affects a lot of areas of China always, and the very major reason that haze is formed is that the discharge of uncombusted particulate matter is too many, and wherein the discharge amount of vehicle exhaust accounts for total release more than 50%.Automotive industry, in order to reduce oil consumption and exhaust emissions amount, begins through the weight that various method alleviates car load.Under this background, full aluminium motor car engine is arisen at the historic moment, and it becomes reduction vehicle weight, reduces the main path of exhaust emissions.
Although all-aluminium engine effects of energy conservation and environmental protection is good, but because the key core technology such as aluminium material hardness, tensile strength, wear resistance still do not reach associated specifications, its cylinder sleeve must adopt cast iron materials, how to make Cast iron liner be combined closely with aluminum cylinder, become the difficult point of puzzlement development all-aluminium engine.Current all-aluminium engine cylinder sleeve adopts cylindrical threading cylinder liner and cylindrical as cast condition cylinder liner mostly.Occurred cylindrical threading cylinder liner for promoting in cylinder sleeve cylinder body adhesive strength industry, because this series products inner and outer surface needs to carry out machining, cost compare is high, less with aluminum cylinder combination force.Cylindrical as cast condition cylinder liner is compared thread cylinder cover combination force and is increased, but its projection is higher.The projection that outer round surface is higher causes cylinder liner blank cooling in Cylinder Sleeve by Centrifugal Casting process too fast, causes graphite structure and metallographic structure significantly to worsen, forms a large amount of E type graphite and over-cooling structure, reduce the wear-resisting type of cylinder liner and the matching property with piston ring.Simultaneously higher rising height fluctuation ratio is comparatively large, causes circularity fluctuation ratio in aluminum cylinder casting process comparatively large, causes exhaust emissions fluctuation ratio larger.
Model utility content
The purpose of this utility model is to provide a kind of rub resistance, passenger car lightweight air cylinder sleeve of engine that cylinder liner outer round surface pit height is less.
For achieving the above object, the technical solution adopted in the utility model is, a kind of passenger car lightweight air cylinder sleeve of engine, cylinder liner outer round surface is distributed with pit, the shape of pit has dumbbell shaped, just puts cone table shape, vermiform, olecranon shape four kinds of shapes, and the pit of four kinds of shapes is in cylinder liner outer round surface random distribution, and the height of pit is 0.25 mm ~ 1.1mm, the top of described pit is arc surface, and the area apart from single pit cross section, pit root base surface height 0.2mm place is 0.05mm
2~ 7mm
2, the Distances Between Neighboring Edge Points of adjacent two pits is 0.5mm ~ 5mm; When the height of pit is 0.5 ~ 1.1mm, the 3/5 times of single pit sectional area in place being pit height apart from pit root base surface height is 0.05mm
2~ 5mm
2.
Preferably, the top of described pit is irregular roundness cambered surface, and the area apart from single pit cross section, pit root base surface height 0.2mm place is 0.05mm
2~ 7mm
2, the Distances Between Neighboring Edge Points of adjacent two pits is 0.5mm ~ 5mm; The Distances Between Neighboring Edge Points of two pits refers on the cross section apart from pit root base surface 0.2mm At The Height, the minimum value of the spacing of the point in two pit section edges, the Distances Between Neighboring Edge Points of adjacent two pits refers to the minimum value between a certain pit and the pit around it in Distances Between Neighboring Edge Points.
The pit height of described passenger car lightweight air cylinder sleeve of engine is that 0.25mm ~ 0.5(does not comprise 0.5) mm time, the Distances Between Neighboring Edge Points of adjacent two pits is 0.5 ~ 3mm, and the sectional area apart from pit root base surface height 0.2mm place single pit is 0.05 ~ 0.3mm
2.
When the pit height of described passenger car lightweight air cylinder sleeve of engine is 0.5 ~ 1.1mm, the Distances Between Neighboring Edge Points of adjacent two pits is 1.0 ~ 5mm, and the sectional area apart from the single pit in pit root base surface height 0.2mm place is 0.2 ~ 7mm
2.
The preparation method of described passenger car lightweight air cylinder sleeve of engine, comprise the following steps: come out of the stove after 1. each composition of following weight percentage being smelted into iron liquid at 1480 DEG C ~ 1550 DEG C: C 2.8 ~ 3.8%, S 0.03 ~ 0.06%, Si 1.8 ~ 2.9%, P≤0.7%, Mn 0.5 ~ 0.9%, Cr 0.1 ~ 0.4%, Cu 0.1 ~ 0.7%, surplus is iron; 2. masking liquid is prepared, the process preparing masking liquid is as follows: with weight parts, get 10 ~ 45 parts, silicious marl, bentonite clay 2.5 ~ 25 parts, neopelex 0.1-0.5 part, 30 ~ 85 parts, water, bentonite clay is added to the water, soak to add after 20 ~ 28 hours in stirrer and stir 1 ~ 6 hour, add silicious marl, stir 200 ~ 400 minutes, add neopelex, stir and can obtain masking liquid; 3. centrifugal casting: the masking liquid configured is added in pressure coating tank, pressure adjusting is 0.3 ~ 0.5MPa; Start centrifugal tube casting machine, speed setting is 1400 ~ 1700r/min, by the heating temperatures of mould to 150 ~ 450 DEG C, then masking liquid jet pipe starts to spray to mould inner wall the masking liquid prepared, and the thickness of the masking liquid of sprinkling is 0.3 ~ 1.2mm, and masking liquid is heated on mould inner wall, masking liquid be heated produce steam in masking liquid, form even cavity rapidly, then masking liquid surface produces and breaks, and gas overflowing is coated with liquid layer, finally in painting liquid layer, forms cavity; Be that the iron liquid of 1480-1550 DEG C is transferred in teeming ladle by temperature, the inovulant simultaneously adding iron liquid quality 0.6-1.0% breeds, except de-iron liquid surface scum can be poured in mould, iron liquid is injected in cavity under centrifugal action, forms pit after crystallisation by cooling on blank.
Preferably, described inovulant is ferrosilicon.
The method of measurement that passenger car lightweight cylinder of the present utility model puts pit height is as follows: on lathe, cylinder liner is clamped size, and the front outside diameter of turning and pit car fall the half of rear difference in diameter, are the height of pit; The surface that pit car falls rear cylinder cover cylindrical is pit root base surface.
The measurement of pit height also can adopt conventional three-dimensional laser scanner to carry out the bad 3 d surface topography of Non-contact nondestructive to cylinder-barrel surface and detect, form 3D figure, then measure pit height with the analysis software that three-dimensional laser scanner carries after scanning.
The beneficial effect that the utility model produces is, cylinder liner pit height of the present utility model only has 0.25 ~ 1.1mm, significantly reduce the blank rate of cooling in Cylinder Sleeve by Centrifugal Casting process, thus significantly improve metallographic structure, improve the antifriction performance of cylinder liner, extend the working life of cylinder liner; Simultaneously because the height of pit is less, in aluminum cylinder casting process, circularity fluctuation significantly reduces, and decreases the possibility that firing chamber scurried into by machine oil, decreases firing chamber exhaust emissions; Low height pit and excellent metallographic structure, can make cylinder liner wall thickness reduce 1mm, make cylinder sleeve of engine cylinder pintch reduce by 2 more than mm, and the final weight reducing aluminum cylinder, realizes motor lightweight.
Accompanying drawing explanation
Fig. 1 is the structural representation of passenger car lightweight air cylinder sleeve of engine of the present utility model;
Fig. 2 is the structural representation of olecranon shape pit;
Fig. 3 is the structural representation of dumbbell shaped pit;
Fig. 4 is the structural representation just putting cone table shape pit;
Fig. 5 is the structural representation of vermiform pit;
Fig. 6 is the schematic cross-section that passenger car lightweight cylinder of the present utility model is enclosed within apart from pit root base surface 0.2mm At The Height.
Embodiment
Embodiment 1
As shown in figures 1 to 6, a kind of passenger car lightweight air cylinder sleeve of engine, cylinder liner 5 outer round surface is distributed with pit, pit comprises dumbbell shaped pit 2, just puts cone table shape pit 3, vermiform pit 4, olecranon shape pit 1 four kinds, the pit of four kinds of shapes is in cylinder liner outer round surface random distribution, and the height of pit is 0.25 mm.
The top of described pit is irregular roundness cambered surface, and the area apart from single pit cross section, pit root base surface height 0.2mm place is 0.05mm
2~ 0.12mm
2; The Distances Between Neighboring Edge Points of adjacent two pits is 0.5mm ~ 2mm; The Distances Between Neighboring Edge Points of two pits refers on the cross section apart from pit root base surface 0.2mm At The Height, the minimum value of the spacing of the point in two pit section edges, the Distances Between Neighboring Edge Points of adjacent two pits refers to the minimum value between a certain pit and the pit around it in Distances Between Neighboring Edge Points.In Fig. 6, L1 can not as the Distances Between Neighboring Edge Points of adjacent two pits, and L0 can as the Distances Between Neighboring Edge Points of adjacent two pits.
The preparation method of described passenger car lightweight air cylinder sleeve of engine, comprise the following steps: come out of the stove after 1. each composition of following weight percentage being smelted into iron liquid at 1500 DEG C: C 3.2%, S 0.05%, Si 2.5%, P 0.5%, Mn 0.7%, Cr 0.3%, Cu 0.5%, surplus is iron; 2. masking liquid is prepared: with weight parts, get 30 parts, silicious marl, bentonite clay 15 parts, neopelex 0.3 part, 50 parts, water, bentonite clay is added to the water, soak to add after 24 hours in stirrer and stir 4 hours, add silicious marl, stir 300 minutes, add neopelex, stir and can obtain masking liquid; 3. centrifugal casting: the masking liquid configured is added in pressure coating tank, pressure adjusting is 0.4MPa; Start centrifugal tube casting machine, speed setting is 1500r/min, by the heating temperatures of mould to 300 DEG C, then masking liquid jet pipe starts to spray to mould inner wall the masking liquid prepared, and the thickness of the masking liquid of sprinkling is 0.8mm, and masking liquid is heated on mould inner wall, masking liquid be heated produce steam in coating, form even cavity rapidly, then masking liquid surface produces and breaks, and gas overflowing is coated with liquid layer, finally in painting liquid layer, forms cavity; Be that the iron liquid of 1500 DEG C is transferred in teeming ladle by temperature, the inovulant simultaneously adding iron liquid quality 0.8% breeds, except de-iron liquid surface scum can be poured in mould, iron liquid is injected in cavity under centrifugal action, forms pit after crystallisation by cooling on blank.
Described inovulant is 75 ferrosilicon.
The method of measurement that described car lightweight cylinder puts pit height is as follows: on lathe, cylinder liner is clamped size, and the front outside diameter of turning and pit car fall the half of rear difference in diameter, are pit height; The surface that pit car falls rear rear cylinder cover cylindrical is pit root base surface.
Embodiment 2
The passenger car lightweight air cylinder sleeve of engine of embodiment 2 and the difference of embodiment 1 are, the height of pit is 0.5 mm, and the top of described pit is irregular roundness cambered surface, and the area apart from single pit cross section, pit root base surface height 0.2mm place is 0.2mm
2~ 0.3mm
2, be that the area in the pit cross section, 3/5 times of place of pit height is 0.05mm apart from pit root base surface height
2~ 0.7mm
2; The Distances Between Neighboring Edge Points of adjacent two pits is 1mm ~ 3mm.
The preparation method of described passenger car lightweight air cylinder sleeve of engine, comprise the following steps: come out of the stove after 1. each composition of following weight percentage being smelted into iron liquid at 1480 DEG C: C 2.8%, S 0.03%, Si 1.8%, P 0.1%, Mn 0.5%, Cr 0.1%, Cu 0.1%, surplus is iron; 2. masking liquid is prepared: with weight parts, get 10 parts, silicious marl, bentonite clay 2.5 parts, neopelex 0.1 part, 30 parts, water, bentonite clay is added to the water, soak to add after 20 hours in stirrer and stir 1 hour, add silicious marl, stir 200 minutes, add neopelex, stir and can obtain being coated with feed liquid; 3. centrifugal casting: the masking liquid configured is added in pressure coating tank, pressure adjusting is 0.3MPa; Start centrifugal tube casting machine, speed setting is 1400r/min, by the heating temperatures of mould to 150 DEG C, then masking liquid jet pipe starts to spray to mould inner wall the masking liquid prepared, and the thickness of the masking liquid of sprinkling is 0.3mm, and masking liquid is heated on mould inner wall, masking liquid be heated produce steam in masking liquid, form even cavity rapidly, then masking liquid surface produces and breaks, and gas overflowing is coated with liquid layer, finally in painting liquid layer, forms cavity; Be that the iron liquid of 1480 DEG C is transferred in teeming ladle by temperature, the inovulant simultaneously adding iron liquid quality 0.6% breeds, except de-iron liquid surface scum can be poured in mould, iron liquid is injected in cavity under centrifugal action, forms pit after crystallisation by cooling on blank.
Described inovulant is 75 ferrosilicon.
Embodiment 3
The passenger car lightweight air cylinder sleeve of engine of embodiment 3 and the difference of embodiment 1 are, the height of pit is 1.1 mm, and the top of described pit is irregular roundness cambered surface, and the area apart from single pit cross section, pit root base surface height 0.2mm place is 0.8mm
2~ 7mm
2, be that the area in the pit cross section, 3/5 times of place of pit height is 0.7mm apart from pit root base surface height
2~ 5mm
2; The Distances Between Neighboring Edge Points of adjacent two pits is 1.5mm ~ 5.0mm.
Embodiment 3 is with the difference of embodiment 1: the preparation method of described passenger car lightweight air cylinder sleeve of engine, comprise the following steps: come out of the stove after 1. each composition of following weight percentage being smelted into iron liquid at 1550 DEG C: C 3.8%, S 0.06%, Si 2.9%, P 0.7%, Mn 0.9%, Cr 0.4%, Cu 0.7%, surplus is iron; 2. masking liquid is prepared: with weight parts, get 45 parts, silicious marl, bentonite clay 25 parts, neopelex 0.5 part, 85 parts, water, bentonite clay is added to the water, soak to add after 28 hours in stirrer and stir 6 hours, add silicious marl, stir 400 minutes, add neopelex, stir and can obtain masking liquid; 3. centrifugal casting: the masking liquid configured is added in pressure coating tank, pressure adjusting is 0.5MPa; Start centrifugal tube casting machine, speed setting is 1700r/min, by the heating temperatures of mould to 450 DEG C, then masking liquid jet pipe starts to spray to mould inner wall the masking liquid prepared, and the thickness of the masking liquid of sprinkling is 1.2mm, and masking liquid is heated on mould inner wall, masking liquid be heated produce steam in masking liquid, form even cavity rapidly, then masking liquid surface produces and breaks, and gas overflowing is coated with liquid layer, finally in painting liquid layer, forms cavity; Be that the iron liquid of 1550 DEG C is transferred in teeming ladle by temperature, the inovulant simultaneously adding iron liquid quality 1.0% breeds, except de-iron liquid surface scum can be poured in mould, iron liquid is injected in cavity under centrifugal action, forms pit after crystallisation by cooling on blank.
Described inovulant is 75 ferrosilicon.
Claims (3)
1. a passenger car lightweight air cylinder sleeve of engine, it is characterized in that: cylinder liner outer round surface is distributed with pit, the shape of pit has dumbbell shaped, just puts cone table shape, vermiform, olecranon shape four kinds of shapes, the pit of four kinds of shapes is in cylinder liner outer round surface random distribution, the height of pit is 0.25 mm ~ 1.1mm, the top of described pit is arc surface, and the area apart from single pit cross section, pit root base surface height 0.2mm place is 0.05mm
2~ 7mm
2, the Distances Between Neighboring Edge Points of adjacent two pits is 0.5mm ~ 5mm; When the height of pit is 0.5 ~ 1.1mm, the 3/5 times of single pit sectional area in place being pit height apart from pit root base surface height is 0.05mm
2~ 5mm
2.
2. passenger car lightweight air cylinder sleeve of engine as claimed in claim 1, it is characterized in that: when the height of pit is 0.25mm ~ 0.5mm but does not comprise 0.5mm, the Distances Between Neighboring Edge Points of adjacent two pits is 0.5 ~ 3mm, and the sectional area apart from the single pit in pit root base surface height 0.2mm place is 0.05 ~ 0.3mm
2.
3. passenger car lightweight air cylinder sleeve of engine as claimed in claim 1, it is characterized in that: when the height of pit is 0.5 ~ 1.1mm, the Distances Between Neighboring Edge Points of adjacent two pits is 1.0 ~ 5mm, and the sectional area apart from the single pit in pit root base surface height 0.2mm place is 0.2 ~ 7mm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853960.8U CN204386752U (en) | 2014-12-30 | 2014-12-30 | A kind of passenger car lightweight air cylinder sleeve of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853960.8U CN204386752U (en) | 2014-12-30 | 2014-12-30 | A kind of passenger car lightweight air cylinder sleeve of engine |
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| CN204386752U true CN204386752U (en) | 2015-06-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595050A (en) * | 2014-12-30 | 2015-05-06 | 河南省中原内配股份有限公司 | Light-weight engine cylinder sleeve of passenger vehicle and production method of light-weight engine cylinder sleeve |
| CN105484888A (en) * | 2015-09-30 | 2016-04-13 | 常州倍安特动力机械有限公司 | Aluminum casting cylinder sleeve for gasoline engine |
| US10215128B2 (en) | 2016-04-27 | 2019-02-26 | Mahle International Gmbh | Rough cast cylinder liner |
-
2014
- 2014-12-30 CN CN201420853960.8U patent/CN204386752U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595050A (en) * | 2014-12-30 | 2015-05-06 | 河南省中原内配股份有限公司 | Light-weight engine cylinder sleeve of passenger vehicle and production method of light-weight engine cylinder sleeve |
| CN104595050B (en) * | 2014-12-30 | 2017-06-30 | 中原内配集团股份有限公司 | A kind of passenger car lightweight air cylinder sleeve of engine and preparation method thereof |
| CN105484888A (en) * | 2015-09-30 | 2016-04-13 | 常州倍安特动力机械有限公司 | Aluminum casting cylinder sleeve for gasoline engine |
| US10215128B2 (en) | 2016-04-27 | 2019-02-26 | Mahle International Gmbh | Rough cast cylinder liner |
| US10465627B2 (en) | 2016-04-27 | 2019-11-05 | Mahle International Gmbh | Rough cast cylinder liner |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHONGYUAN NEIPEI GROUP CO., LTD. Free format text: FORMER NAME: ZHONGYUAN NEIPEI CO., LTD., HENAN PROV. |
|
| CP03 | Change of name, title or address |
Address after: 454750 Huaihe Road, Mengzhou industrial agglomeration area, Henan, China, No. 69, No. Patentee after: Central Plains Nei Pei Group Plc Patentee after: Anhui Zhongyuan Internal Fit LLC Address before: 454750 No. 146 Han Yu Avenue, Mengzhou, Henan, Jiaozuo Patentee before: Zhongyuan Neipei Co., Ltd., Henan Prov. Patentee before: Anhui Zhongyuan Internal Fit LLC |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 454750, No. 69, Huaihe Avenue, Mengzhou industrial agglomeration area, Jiaozuo, Henan Co-patentee after: MCC REAL ESTATE CHONGQING CO., LTD. Patentee after: Central Plains Nei Pei Group Plc Address before: 454750, No. 69, Huaihe Avenue, Mengzhou industrial agglomeration area, Jiaozuo, Henan Co-patentee before: Anhui Zhongyuan Internal Fit LLC Patentee before: Central Plains Nei Pei Group Plc |
|
| CP01 | Change in the name or title of a patent holder |