CN109759565A - A cylinder liner for automobile engine - Google Patents
A cylinder liner for automobile engine Download PDFInfo
- Publication number
- CN109759565A CN109759565A CN201910073924.7A CN201910073924A CN109759565A CN 109759565 A CN109759565 A CN 109759565A CN 201910073924 A CN201910073924 A CN 201910073924A CN 109759565 A CN109759565 A CN 109759565A
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- China
- Prior art keywords
- layer
- cast iron
- boron
- cylinder jacket
- iron
- 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.)
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- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 59
- 229910052796 boron Inorganic materials 0.000 claims abstract description 35
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 30
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 29
- 239000011574 phosphorus Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 25
- 229910000805 Pig iron Inorganic materials 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 15
- 238000009750 centrifugal casting Methods 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 238000005266 casting Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 6
- 230000003442 weekly effect Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- VAKIVKMUBMZANL-UHFFFAOYSA-N iron phosphide Chemical compound P.[Fe].[Fe].[Fe] VAKIVKMUBMZANL-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
本发明提供了一种用于汽车发动机的气缸套，所述气缸套包括磷铸铁层、中间渗透层和硼铸铁层，磷铸铁层位于外层，硼铸铁层位于内层，其中磷铸铁层的厚度为3.2‑4.6mm，中间渗透层的厚度为1.0‑1.6mm，硼铸铁层的厚度为0.6‑1.8mm；本发明的气缸套采用外层磷铸铁和内层硼铸铁的复合结构，其中以磷铸铁为主体结构，磷铸铁的外壁具有良好的防腐蚀性能，延长气缸套使用寿命，而内壁采用硼铸铁具有良好的耐磨性能。
The invention provides a cylinder liner for an automobile engine. The cylinder liner comprises a phosphorus cast iron layer, an intermediate permeable layer and a boron cast iron layer. The phosphorus cast iron layer is located on the outer layer and the boron cast iron layer is located on the inner layer. The thickness is 3.2-4.6mm, the thickness of the middle permeable layer is 1.0-1.6mm, and the thickness of the boron cast iron layer is 0.6-1.8mm; the cylinder liner of the present invention adopts the composite structure of the outer layer of phosphorous cast iron and the inner layer of boron cast iron, wherein the Phosphorus cast iron is the main structure. The outer wall of phosphorus cast iron has good anti-corrosion performance and prolongs the service life of the cylinder liner, while the inner wall is made of boron cast iron, which has good wear resistance.
Description
Technical field
The present invention relates to parking equipment technical field, especially a kind of cylinder jacket for automobile engine.
Background technique
Cylinder jacket is one of key part of engine, and the etching problem of wet liner outer wall can shorten it and use the longevity
Life, and cylinder liner internal wall is high to wear-resisting property requirement.Cylinder jacket in the prior art generally use gray cast iron, phosphorus cast iron or
Boron cast iron material, wherein boron cast-iron cylinder jacket wear-resisting property is best, and price is more expensive, but corrosion resistance is limited.Currently, both at home and abroad
Cylinder sleeve cast iron products nearly all develop to low emission direction, wear-resisting, the corrosion resistant of the use of EGR to in-engine cylinder jacket
Requirement it is higher.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of cylinder jacket for automobile engine, specific technical solutions
It is:
A kind of cylinder jacket for automobile engine, the cylinder jacket include phosphorus cast iron layer, intermediate permeable formation and boron cast iron layer, phosphorus
Cast iron layer is located at outer layer, and boron cast iron layer is located at internal layer, wherein phosphorus cast iron layer with a thickness of 3.2-4.6mm, the thickness of intermediate permeable formation
Degree be 1.0-1.6mm, boron cast iron layer with a thickness of 0.6-1.8mm；
The phosphorus cast iron layer at being grouped into C3.0-3.3%, Si2.1-2.4%, P0.3-0.6%, S < 0.1%, Mn0.4-0.6%,
Mo0.1-0.3%, the surplus pig iron；
Intermediate permeable formation at being grouped into C2.8-3.2%, Si2.2-2.5%, P0.2-0.4%, S < 0.1%, Mn0.3-0.6%,
Mo0.1-0.3%, Ni0.1 ~ 0.6%, Cu0.1 ~ 0.8%, B0.01 ~ 0.04%, the surplus pig iron；
Boron cast iron layer at be grouped into C2.5 ~ 3.0%, Si 2.3 ~ 2.6%, P0.1% ~ 0.3%, S < 0.1%, Mn0.5 ~ 1.2%,
Mo0.3 ~ 1.5%, Ni0.3 ~ 1.5%, Cu0.3 ~ 1.2%, B0.01 ~ 0.08%, the surplus pig iron；
The preparation method of the cylinder jacket the following steps are included:
1) ferrophosphorus raw material is prepared, ferrophosphorus liquid is obtained after melting, is added before coming out of the stove at the inovulant of iron liquid weight 0.55~0.65%
Reason；
2) ferrophosphorus raw material is prepared, ferro-boron liquid is obtained after melting, is added before coming out of the stove at the inovulant of 0.55~0 .65% of iron liquid weight
Reason；
3) outer layer centrifugal casting is first carried out using the ferrophosphorus liquid that step 1) obtains, then is carried out using the ferro-boron iron liquid that step 2 obtains
Internal layer centrifugal casting, obtains liner blank；
4) liner blank is post-processed to obtain cylinder jacket.
Further, layer centrifugally cast cast temperature in step 3) China and foreign countries is 1450-1490 DEG C, after being spaced 1-3min clock,
Internal layer centrifugal casting is carried out again, and the centrifugally cast cast temperature of internal layer is 1470-1500 DEG C.
Further, the cylinder jacket outer wall is equipped with multiple spiral shape protrusions, multiple spiral salient edges below band
The setting of outer circle weekly interval, height of projection are not more than 0.5mm.
Beneficial point of the invention is: cylinder jacket of the invention uses the composite junction of outer layer phosphorus cast iron and internal layer boron cast iron
Structure, wherein the structure based on phosphorus cast iron, the outer wall of phosphorus cast iron has good Corrosion Protection, extends cylinder jacket and uses the longevity
Life, and inner wall has good wear-resisting property using boron cast iron.In addition, the temperature cast in internal layer casting using slightly above outer layer
Degree is conducive to the infiltration of phosphorus cast iron layer, and when boron cast iron is cast, borocarbide generates around iron phosphide eutectic, can be further
Improve the corrosion-resistant and wear-resisting property of cylinder liner internal wall.
It being directed to and implements the problem of cylinder jacket outer wall is also easy to produce cavitation pitting, the present invention adds a circle spiral shape protrusion in outer wall,
It can play the role of flow-disturbing to cooling water, mitigate impact of the cooling water to outer wall, to avoid the formation of cavitation pitting.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of cylinder jacket in the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Embodiment 1
Such as Fig. 1, a kind of cylinder jacket for automobile engine, the cylinder jacket includes phosphorus cast iron layer, intermediate permeable formation and boron casting
Iron layer, phosphorus cast iron layer are located at outer layer, and boron cast iron layer is located at internal layer, wherein phosphorus cast iron layer with a thickness of 3.2mm, intermediate permeable formation
With a thickness of 1.6mm, boron cast iron layer with a thickness of 0.6mm；
The phosphorus cast iron layer at being grouped into C3.0%, Si2.4%, P0.6%, S0.05%, Mn0.4%, Mo0.1%, the surplus pig iron；
Intermediate permeable formation at being grouped into C2.8%, Si2.5%, P0.4%, S0.04%, Mn0.6%, Mo0.3%, Ni0.1%,
Cu0.1%, B0.01%, the surplus pig iron；
Boron cast iron layer at be grouped into C2.5%, Si 2.6%, P0.3%, S0.04%, Mn1.2%, Mo1.5%, Ni0.3%,
Cu0.3%, B0.01%, the surplus pig iron；
The preparation method of the cylinder jacket the following steps are included:
1) ferrophosphorus raw material is prepared, ferrophosphorus liquid is obtained after melting, the inovulant processing of iron liquid weight 0.55% is added before coming out of the stove；
2) ferrophosphorus raw material is prepared, ferro-boron liquid is obtained after melting, the inovulant processing of iron liquid weight 0.55% is added before coming out of the stove；
3) outer layer centrifugal casting is first carried out using the ferrophosphorus liquid that step 1) obtains, then is carried out using the ferro-boron iron liquid that step 2 obtains
Internal layer centrifugal casting, obtains liner blank；
4) liner blank is post-processed to obtain cylinder jacket.
, layer centrifugally cast cast temperature in step 3) China and foreign countries is 1450 DEG C, after being spaced 1min clock, then carries out internal layer centrifugation and pours
Casting, the centrifugally cast cast temperature of internal layer are 1470 DEG C.
Embodiment 2
Such as Fig. 1, a kind of cylinder jacket for automobile engine, the cylinder jacket includes phosphorus cast iron layer, intermediate permeable formation and boron casting
Iron layer, phosphorus cast iron layer are located at outer layer, and boron cast iron layer is located at internal layer, wherein phosphorus cast iron layer with a thickness of 4.6mm, intermediate permeable formation
With a thickness of 1.0mm, boron cast iron layer with a thickness of 1.8mm；
The phosphorus cast iron layer at being grouped into C3.3%, Si2.1%, P0.3%, S0.06%, Mn0.4%, Mo0.3%, the surplus pig iron；
Intermediate permeable formation at being grouped into C3.2%, Si2.2%, P0.2%, S0.05%, Mn0.6%, Mo0.3%, Ni0.6%,
Cu0.8%, B0.04%, the surplus pig iron；
Boron cast iron layer at be grouped into C3.0%, Si 2.3%, P0.1%%, S0.05%, Mn1.2%, Mo1.5%, Ni1.5%,
Cu1.2%, B0.08%, the surplus pig iron；
The preparation method of the cylinder jacket the following steps are included:
1) ferrophosphorus raw material is prepared, ferrophosphorus liquid is obtained after melting, the inovulant processing of iron liquid weight 0.60% is added before coming out of the stove；
2) ferrophosphorus raw material is prepared, ferro-boron liquid is obtained after melting, the inovulant processing of iron liquid weight 0.60% is added before coming out of the stove；
3) outer layer centrifugal casting is first carried out using the ferrophosphorus liquid that step 1) obtains, then is carried out using the ferro-boron iron liquid that step 2 obtains
Internal layer centrifugal casting, obtains liner blank；
4) liner blank is post-processed to obtain cylinder jacket.
, layer centrifugally cast cast temperature in step 3) China and foreign countries is 1490 DEG C, after being spaced 2min clock, then carries out internal layer centrifugation and pours
Casting, the centrifugally cast cast temperature of internal layer are 1500 DEG C.
Such as Fig. 1, a kind of cylinder jacket for automobile engine, the cylinder jacket include phosphorus cast iron layer, intermediate permeable formation and
Boron cast iron layer, phosphorus cast iron layer are located at outer layer, and boron cast iron layer is located at internal layer, wherein phosphorus cast iron layer with a thickness of 4.0mm, centre infiltration
Layer with a thickness of 1.3mm, boron cast iron layer with a thickness of 1.2mm；
The phosphorus cast iron layer at being grouped into C3.2%, Si2.2%, P0.5%, S0.07%, Mn0.5%, Mo0.2%, the surplus pig iron；
Intermediate permeable formation at being grouped into C3.0%, Si2.4%, P0.3%, S0.08%, Mn0.5%, Mo0.3%, Ni0.4%,
Cu0.5%, B0.03%, the surplus pig iron；
Boron cast iron layer at be grouped into C2.8%, Si 2.5%, P0.2%, S0.06%, Mn0.8%, Mo0.8%, Ni0.8%,
Cu0.8%, B0.05%, the surplus pig iron；
The preparation method of the cylinder jacket the following steps are included:
1) ferrophosphorus raw material is prepared, ferrophosphorus liquid is obtained after melting, the inovulant processing of iron liquid weight 0.65% is added before coming out of the stove；
2) ferrophosphorus raw material is prepared, ferro-boron liquid is obtained after melting, the inovulant processing of 0 .65% of iron liquid weight is added before coming out of the stove；
3) outer layer centrifugal casting is first carried out using the ferrophosphorus liquid that step 1) obtains, then is carried out using the ferro-boron iron liquid that step 2 obtains
Internal layer centrifugal casting, obtains liner blank；
4) liner blank is post-processed to obtain cylinder jacket.
, layer centrifugally cast cast temperature in step 3) China and foreign countries is 1470 DEG C, after being spaced 3min clock, then carries out internal layer centrifugation and pours
Casting, the centrifugally cast cast temperature of internal layer are 1480 DEG C.
Embodiment 4
On the basis of the scheme of embodiment 1-3, such as Fig. 1, it is convex that the cylinder jacket outer wall is equipped with multiple spiral shapes below band
It rises, multiple spiral salients are arranged along outer circle weekly interval, and height of projection is not more than 0.5mm.It is pre- that the protrusion, which can be centrifugal casting,
The processing capacity of raised position is stayed, then is obtained by post-production.
Claims (3)
1. a kind of cylinder jacket for automobile engine, it is characterised in that: the cylinder jacket includes phosphorus cast iron layer, intermediate permeable formation
With boron cast iron layer, phosphorus cast iron layer is located at outer layer, and boron cast iron layer is located at internal layer, wherein phosphorus cast iron layer with a thickness of 3.2-4.6mm, in
Between permeable formation with a thickness of 1.0-1.6mm, boron cast iron layer with a thickness of 0.6-1.8mm；
The phosphorus cast iron layer at being grouped into C3.0-3.3%, Si2.1-2.4%, P0.3-0.6%, S < 0.1%, Mn0.4-0.6%,
Mo0.1-0.3%, the surplus pig iron；
Intermediate permeable formation at being grouped into C2.8-3.2%, Si2.2-2.5%, P0.2-0.4%, S < 0.1%, Mn0.3-0.6%,
Mo0.1-0.3%, Ni0.1 ~ 0.6%, Cu0.1 ~ 0.8%, B0.01 ~ 0.04%, the surplus pig iron；
Boron cast iron layer at be grouped into C2.5 ~ 3.0%, Si 2.3 ~ 2.6%, P0.1% ~ 0.3%, S < 0.1%, Mn0.5 ~ 1.2%,
Mo0.3 ~ 1.5%, Ni0.3 ~ 1.5%, Cu0.3 ~ 1.2%, B0.01 ~ 0.08%, the surplus pig iron；
The preparation method of the cylinder jacket the following steps are included:
1) ferrophosphorus raw material is prepared, ferrophosphorus liquid is obtained after melting, is added before coming out of the stove at the inovulant of iron liquid weight 0.55~0.65%
Reason；
2) ferrophosphorus raw material is prepared, ferro-boron liquid is obtained after melting, is added before coming out of the stove at the inovulant of 0.55~0 .65% of iron liquid weight
Reason；
3) outer layer centrifugal casting is first carried out using the ferrophosphorus liquid that step 1) obtains, then is carried out using the ferro-boron iron liquid that step 2 obtains
Internal layer centrifugal casting, obtains liner blank；
4) liner blank is post-processed to obtain cylinder jacket.
2. the cylinder jacket according to claim 1 for automobile engine, it is characterised in that: the step 3) China and foreign countries leafing heart pours
The cast temperature of casting is 1450-1490 DEG C, after being spaced 1-3min clock, then carries out internal layer centrifugal casting, internal layer is centrifugally cast to be poured
Casting temperature is 1470-1500 DEG C.
3. the cylinder jacket according to claim 1 for automobile engine, it is characterised in that: the cylinder jacket outer wall is along close
Envelope band lower section is equipped with multiple spiral shape protrusions, and multiple spiral salients are arranged along outer circle weekly interval, and height of projection is not more than 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910073924.7A CN109759565B (en) | 2019-01-25 | 2019-01-25 | A cylinder liner for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910073924.7A CN109759565B (en) | 2019-01-25 | 2019-01-25 | A cylinder liner for automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109759565A true CN109759565A (en) | 2019-05-17 |
| CN109759565B CN109759565B (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910073924.7A Active CN109759565B (en) | 2019-01-25 | 2019-01-25 | A cylinder liner for automobile engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN109759565B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923564A (en) * | 2019-12-17 | 2020-03-27 | 赵明 | Wear-resistant cylinder sleeve and manufacturing method thereof |
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| CN1342536A (en) * | 2001-07-23 | 2002-04-03 | 曾凡苏 | Technology for manufacturing structural member of composite material and cylinder sleeve of drilling pump |
| JP2002122043A (en) * | 2000-10-13 | 2002-04-26 | Kubota Corp | Double-layer cylinder liner |
| CN102527978A (en) * | 2012-03-02 | 2012-07-04 | 华南理工大学 | Casting and forming method for double-layer-material engine cylinder liner |
| RU2665862C1 (en) * | 2017-08-15 | 2018-09-04 | Общество с ограниченной ответственностью "ОЗНА - Октябрьский механический завод" | Cast-iron cylinder bushing blank manufacturing method by the centrifugal casting method |
-
2019
- 2019-01-25 CN CN201910073924.7A patent/CN109759565B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002122043A (en) * | 2000-10-13 | 2002-04-26 | Kubota Corp | Double-layer cylinder liner |
| CN1342536A (en) * | 2001-07-23 | 2002-04-03 | 曾凡苏 | Technology for manufacturing structural member of composite material and cylinder sleeve of drilling pump |
| CN102527978A (en) * | 2012-03-02 | 2012-07-04 | 华南理工大学 | Casting and forming method for double-layer-material engine cylinder liner |
| RU2665862C1 (en) * | 2017-08-15 | 2018-09-04 | Общество с ограниченной ответственностью "ОЗНА - Октябрьский механический завод" | Cast-iron cylinder bushing blank manufacturing method by the centrifugal casting method |
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| 刘云溥 董显明: "《发动机铸造工艺及装备调试》", 31 July 2015, 西南交通大学出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923564A (en) * | 2019-12-17 | 2020-03-27 | 赵明 | Wear-resistant cylinder sleeve and manufacturing method thereof |
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| CN109759565B (en) | 2020-12-29 |
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