CN102367561A - Centrifugal casting method of engine cylinder linder - Google Patents
Centrifugal casting method of engine cylinder linder Download PDFInfo
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- CN102367561A CN102367561A CN2011103062059A CN201110306205A CN102367561A CN 102367561 A CN102367561 A CN 102367561A CN 2011103062059 A CN2011103062059 A CN 2011103062059A CN 201110306205 A CN201110306205 A CN 201110306205A CN 102367561 A CN102367561 A CN 102367561A
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- cylinder sleeve
- engine
- tempering
- carries out
- inoculation
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000009750 centrifugal casting Methods 0.000 title claims abstract description 9
- 238000011081 inoculation Methods 0.000 claims abstract description 16
- 238000005496 tempering Methods 0.000 claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 238000003723 Smelting Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000002667 nucleating agent Substances 0.000 claims description 10
- 238000009987 spinning Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 2
- 239000010705 motor oil Substances 0.000 abstract 1
- 239000011651 chromium Substances 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a centrifugal casting method of an engine cylinder linder. The method comprises the five steps of: smelting, inoculation, pouring, cooling and tempering. By carefully selecting alloy components and combining a reasonable technological design, the method provided in the invention improves the internal layer performance of an engine cylinder linder, improves the wear resistance of the material, reduces the material friction coefficient and lowers the engine oil consumption. Specifically, the internal layer wear resistance of the cylinder linder is improved by 25-40% compared with the wear resistance of routine centrifugally casted cylinder linders.
Description
Technical field
The present invention relates to casting field, particularly the rotary casting field.
Background technology
Cylinder sleeve of engine is worked under high temperature, high speed and high-pressure environment, for this reason, requires its preparation material to have higher chamber hot strength, good abrasion resistance and high weave construction stability.In recent years, the energy-saving and emission-reduction Economic Development Mode requires the cylinder sleeve of engine use temperature to improve, own wt alleviates as far as possible, the growth in work-ing life, for this reason, adopts the high performance alloys cast iron quality to prepare cylinder sleeve widely.In order to improve the cylinder sleeve working temperature, reduce engine dry weight, improve engine life, to reduce exhaust gas emission, particularly on heavy type delivery locomotive, more strict for the internal surface weave construction requirement of engine cylinder cover material.
At present; In China's industry standard regulation; Detect the position to the metallographic of rotary casting cylinder sleeve and select generally in the nearly workplace 2mm scope of distance, and the organism optical metallographic of this cylinder sleeve detects and requires to be higher than industry requirement far away: it requires the tissue on whole cylinder sleeve cross section to meet the requirements.Therefore, adopt traditional centrifugal casting technique, because centrifugal casting process melt consecutive solidification mode and action of centrifugal force; Though the tensile strength and the hardness of the cylinder jacket material of preparation can satisfy the product mechanical property requirements,, the alloy cylinder sleeve is after using for some time; Endoporus wearing and tearing aggravation produces bigger gap between casing wall and the piston-ring, cause mover to become flat; Active power reduces, and Oil Consumption rises significantly, and mover reduces work-ing life.Therefore, research and development improve the interior surface of cylinder liner weave construction, and obtaining to have more, the aluminum alloy cylinder sleeve of high-wear resistance, lower coefficient of wear seems particularly important.
Summary of the invention
Deficiency to prior art; One of the object of the invention is to provide a kind of cylinder sleeve of engine centre spinning method, is intended to satisfy under the prerequisite of tensile strength and hardness control internal layer tissue morphology; Improve the abrasion resistance properties of material, reduce the frictional coefficient and reduction engine consumption of material.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
A kind of cylinder sleeve of engine centre spinning method, this method comprises the steps:
1) melting: in middle frequency furnace, be that raw material carries out melting with high-quality steel scrap, molten iron and master alloy, the chemical ingredients of control cylinder sleeve of engine is: C 2.8-3.1, Si 2.6-3.0; Mn1.2-1.5, P≤0.2, S≤0.10; Cr 0.4-0.6, Ni 0.1-0.2, Mo 0.2-0.3; Cu 0.6-0.8, Sn 0.3-0.5, surplus is iron and unavoidable impurities; Smelting temperature is 1550-1600 ℃;
2) breed: inoculation is carried out at twice, comprises that the nucleating agent that adds heavy dose of 0.4%-0.6% carries out the ladle inoculation first time and handles; The nucleating agent that adds low dose of 0.1%-0.3% again carries out the current-following inoculation processing second time;
3) cast: making the rotating speed of centrifugal casting machine earlier is 480-520 rev/min, pours into a mould; Reach a half when watering fluence, make rotating speed improve 50 rev/mins, one semi-metal of cast residue then;
4) cooling: pouring to the pitch time that discharges water is 30-35 second, and water-cooled is to being lower than 200 ℃ then;
5) tempering: with cylinder sleeve tempering in heat treatment furnace, tempering temperature is 530 ℃, is incubated 1.5-3 hour, cools off with 40-120 ℃/h then.
The beneficial effect of the cylinder sleeve of engine that the present invention is prepared is:
1. on the basis of a large amount of experiments,, cooperate the reasonable technology design, make prepared cylinder sleeve of engine reach property through selected alloying constituent:
Mechanical property is: tensile strength sigma
b>=300MPa; Hardness HB240-HB280.Tissue morphology: interior roundstone China ink length 100-120 μ m, cylindrical graphite length 50-70 μ m, internal layer graphite A type, outer graphite A, Type B; Mixtures 12%～15% such as phosphorous, copper, chromium; Pearlite matrix 100%; Ferrite content＜2%;
2. above-mentioned performance has guaranteed the internal layer performance, improves the abrasion resistance properties of material, reduces the frictional coefficient and reduction engine consumption of material.The more conventional rotary casting cylinder sleeve of cylinder sleeve internal layer wear resistance wear resistance improves 25-40%.
Embodiment
Embodiment one
A kind of cylinder sleeve of engine centre spinning method, this method comprises the steps:
1) melting: in middle frequency furnace, be that raw material carries out melting with high-quality steel scrap, molten iron and master alloy, the chemical ingredients of control cylinder sleeve of engine is: C 2.8, and Si 2.6; Mn 1.2, P≤0.2, S≤0.10; Cr 0.4, and Ni 0.1, and Mo 0.2; Cu 0.6, and Sn 0.3, and surplus is iron and unavoidable impurities; Smelting temperature is 1550 ℃;
2) breed: inoculation is carried out at twice, comprises that the nucleating agent that adds heavy dose 0.4%% carries out the ladle inoculation first time and handles; The nucleating agent that adds low dose 0.1%% again carries out the current-following inoculation processing second time;
3) cast: making the rotating speed of centrifugal casting machine earlier is 480 rev/mins, pours into a mould; Reach a half when watering fluence, make rotating speed bring up to 530 rev/mins, one semi-metal of cast residue then;
4) cooling: pour to the pitch time that discharges water be 30 seconds, water-cooled is to being lower than 200 ℃ then;
5) tempering: with cylinder sleeve tempering in heat treatment furnace, tempering temperature is 530 ℃, is incubated 1.5 hours, cools off with 40 ℃/h then.
Through test, the wear resistance of this cylinder sleeve of engine improves 28%.
Embodiment two
A kind of cylinder sleeve of engine centre spinning method, this method comprises the steps:
1) melting: in middle frequency furnace, be that raw material carries out melting with high-quality steel scrap, molten iron and master alloy, the chemical ingredients of control cylinder sleeve of engine is: C 3.1, and Si 3.0; Mn 1.5, P≤0.2, S≤0.10; Cr 0.6, and Ni 0.2, and Mo 0.3; Cu 0.8, and Sn 0.5, and surplus is iron and unavoidable impurities; Smelting temperature is 1600 ℃;
2) breed: inoculation is carried out at twice, comprises that the nucleating agent that adds heavy dose 0.6% carries out the ladle inoculation first time and handles; The nucleating agent that adds low dose 0.3% again carries out the current-following inoculation processing second time;
3) cast: making the rotating speed of centrifugal casting machine earlier is 520 rev/mins, pours into a mould; Reach a half when watering fluence, make rotating speed bring up to 570 rev/mins, one semi-metal of cast residue then;
4) cooling: pour to the pitch time that discharges water be 35 seconds, water-cooled is to being lower than 200 ℃ then;
5) tempering: with cylinder sleeve tempering in heat treatment furnace, tempering temperature is 530 ℃, is incubated 3 hours, cools off with 120 ℃/h then.
Through test, the wear resistance of this cylinder sleeve of engine improves 35%.
Embodiment three
A kind of cylinder sleeve of engine centre spinning method, this method comprises the steps:
1) melting: in middle frequency furnace, be that raw material carries out melting with high-quality steel scrap, molten iron and master alloy, the chemical ingredients of control cylinder sleeve of engine is: C 3.0, and Si 2.8; Mn 1.4, P≤0.2, S≤0.10; Cr 0.5, and Ni 0.15, and Mo 0.25; Cu 0.7, and Sn 0.4, and surplus is iron and unavoidable impurities; Smelting temperature is 1570 ℃;
2) breed: inoculation is carried out at twice, comprises that the nucleating agent that adds heavy dose 0.5% carries out the ladle inoculation first time and handles; The nucleating agent that adds low dose 0.2% again carries out the current-following inoculation processing second time;
3) cast: making the rotating speed of centrifugal casting machine earlier is 500 rev/mins, pours into a mould; Reach a half when watering fluence, make rotating speed bring up to 550 rev/mins, one semi-metal of cast residue then;
4) cooling: pour to the pitch time that discharges water be 35 seconds, water-cooled is to being lower than 200 ℃ then;
5) tempering: with cylinder sleeve tempering in heat treatment furnace, tempering temperature is 530 ℃, is incubated 2 hours, cools off with 80 ℃/h then.
Through test, the wear resistance of this cylinder sleeve of engine improves 40%.
Applicant's statement; The present invention explains detailed process equipment of the present invention and technical process through the foregoing description; But the present invention is not limited to above-mentioned detailed process equipment and technical process, does not mean that promptly the present invention must rely on above-mentioned detailed process equipment and technical process could be implemented.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of each raw material of product of the present invention and ancillary component, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.
Claims (1)
1. cylinder sleeve of engine centre spinning method, this method comprises the steps:
1) melting: in middle frequency furnace, be that raw material carries out melting with high-quality steel scrap, molten iron and master alloy, the chemical ingredients of control cylinder sleeve of engine is: C 2.8-3.1, Si 2.6-3.0; Mn1.2-1.5, P≤0.2, S≤0.10; Cr 0.4-0.6, Ni 0.1-0.2, Mo 0.2-0.3; Cu 0.6-0.8, Sn 0.3-0.5, surplus is iron and unavoidable impurities; Smelting temperature is 1550-1600 ℃;
2) breed: inoculation is carried out at twice, comprises that the nucleating agent that adds heavy dose of 0.4%-0.6% carries out the ladle inoculation first time and handles; The nucleating agent that adds low dose of 0.1%-0.3% again carries out the current-following inoculation processing second time;
3) cast: making the rotating speed of centrifugal casting machine earlier is 480-520 rev/min, pours into a mould; Reach a half when watering fluence, make rotating speed improve 50 rev/mins, one semi-metal of cast residue then;
4) cooling: pouring to the pitch time that discharges water is 30-35 second, and water-cooled is to being lower than 200 ℃ then;
5) tempering: with cylinder sleeve tempering in heat treatment furnace, tempering temperature is 530 ℃, is incubated 1.5-3 hour, cools off with 40-120 ℃/h then.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110306205.9A CN102367561B (en) | 2011-10-10 | 2011-10-10 | A kind of centrifugal casting method of engine cylinder linder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110306205.9A CN102367561B (en) | 2011-10-10 | 2011-10-10 | A kind of centrifugal casting method of engine cylinder linder |
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| Publication Number | Publication Date |
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| CN102367561A true CN102367561A (en) | 2012-03-07 |
| CN102367561B CN102367561B (en) | 2016-12-07 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369116A (en) * | 2014-08-29 | 2016-03-02 | 河南省中原内配铸造有限公司 | Piebald cylinder sleeve for centrifugal casting production and production technology of piebald cylinder sleeve |
| CN106041012A (en) * | 2016-06-30 | 2016-10-26 | 中原内配集团安徽有限责任公司 | Production method of wear-resistant cylinder sleeve |
| CN106282617A (en) * | 2016-08-30 | 2017-01-04 | 中原内配集团安徽有限责任公司 | A kind of production method oozing pottery aluminum alloyage cylinder jacket |
| CN106350729A (en) * | 2016-08-30 | 2017-01-25 | 中原内配集团安徽有限责任公司 | Burr type cylinder liner poduction method |
| CN106553020A (en) * | 2016-11-08 | 2017-04-05 | 潜山县凯创橡塑机械制造有限公司 | The new forging molding process of one kind bushing containing nickel-manganese |
| CN109702164A (en) * | 2018-12-17 | 2019-05-03 | 安徽雅思达汽车装备制造有限公司 | A kind of production method of precision cylinder sleeve of engine cubing accessory |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592097A (en) * | 2008-05-29 | 2009-12-02 | 韦星野 | The processing method of anti-sandstorm cylinder sleeve |
| CN101716665A (en) * | 2009-12-25 | 2010-06-02 | 成都银河动力股份有限公司 | Centrifugal casting technology of high-performance engine alloy cylinder sleeve |
| CN102041426A (en) * | 2009-10-09 | 2011-05-04 | 韦加伟 | Process for casting cylinder jacket by using alloy cast iron |
-
2011
- 2011-10-10 CN CN201110306205.9A patent/CN102367561B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592097A (en) * | 2008-05-29 | 2009-12-02 | 韦星野 | The processing method of anti-sandstorm cylinder sleeve |
| CN102041426A (en) * | 2009-10-09 | 2011-05-04 | 韦加伟 | Process for casting cylinder jacket by using alloy cast iron |
| CN101716665A (en) * | 2009-12-25 | 2010-06-02 | 成都银河动力股份有限公司 | Centrifugal casting technology of high-performance engine alloy cylinder sleeve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369116A (en) * | 2014-08-29 | 2016-03-02 | 河南省中原内配铸造有限公司 | Piebald cylinder sleeve for centrifugal casting production and production technology of piebald cylinder sleeve |
| CN106041012A (en) * | 2016-06-30 | 2016-10-26 | 中原内配集团安徽有限责任公司 | Production method of wear-resistant cylinder sleeve |
| CN106282617A (en) * | 2016-08-30 | 2017-01-04 | 中原内配集团安徽有限责任公司 | A kind of production method oozing pottery aluminum alloyage cylinder jacket |
| CN106350729A (en) * | 2016-08-30 | 2017-01-25 | 中原内配集团安徽有限责任公司 | Burr type cylinder liner poduction method |
| CN106553020A (en) * | 2016-11-08 | 2017-04-05 | 潜山县凯创橡塑机械制造有限公司 | The new forging molding process of one kind bushing containing nickel-manganese |
| CN106553020B (en) * | 2016-11-08 | 2019-12-27 | 潜山县凯创橡塑机械制造有限公司 | Manufacturing process of alloy bushing containing nickel and manganese |
| CN109702164A (en) * | 2018-12-17 | 2019-05-03 | 安徽雅思达汽车装备制造有限公司 | A kind of production method of precision cylinder sleeve of engine cubing accessory |
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| CN102367561B (en) | 2016-12-07 |
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Effective date of registration: 20190618 Address after: 226100 No. 88 Changqing Road, Changle Town, Haimen City, Nantong City, Jiangsu Province Patentee after: Nantong Xinfengxiang Hydraulic Casting Co.,Ltd. Address before: 226100 No. 88 Changqing Road, Changle Town, Haimen City, Nantong City, Jiangsu Province Patentee before: Haimen Dade Intellectual Property Services Limited |
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