CN102367561B - A kind of centrifugal casting method of engine cylinder linder - Google Patents
A kind of centrifugal casting method of engine cylinder linder Download PDFInfo
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- CN102367561B CN102367561B CN201110306205.9A CN201110306205A CN102367561B CN 102367561 B CN102367561 B CN 102367561B CN 201110306205 A CN201110306205 A CN 201110306205A CN 102367561 B CN102367561 B CN 102367561B
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- cylinder sleeve
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- centrifugal casting
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000009750 centrifugal casting Methods 0.000 title claims abstract description 16
- 238000002844 melting Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 238000011081 inoculation Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000005496 tempering Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000005275 alloying Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 239000011651 chromium Substances 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 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
- 230000000694 effects Effects 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
- 238000009413 insulation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 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
- 238000012360 testing method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Heat Treatment Of Articles (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of centrifugal casting method of engine cylinder linder, the method includes melting, breeds, pours into a mould, cools down, is tempered five steps.The method, by selected alloying component, coordinates rational technological design so that prepared cylinder sleeve of engine internal layer performance is improved, and improves the abrasion resistance properties of material, reduces the coefficient of friction of material and reduces engine consumption；Cylinder sleeve internal layer wearability more conventional centrifugal cast cylinder sleeve wearability improves 25 40%.
Description
Technical field
The present invention relates to casting field, particularly to centrifugal casting field.
Background technology
Cylinder sleeve of engine works under high temperature, high speed and high-pressure environment, to this end, require that it prepares material
Material has higher room elevated temperature strength, good anti-wear performance and high organizational structure stability.In recent years,
Energy-saving and emission-reduction Economic Development Mode requires that cylinder sleeve of engine uses temperature to improve, own wt alleviates as far as possible, makes
With life, to this end, be widely used high performance alloys cast iron quality to prepare cylinder sleeve.In order to improve cylinder sleeve
Operating temperature, the engine dry weight that reduces, the engine life that improves, minimizing waste gas discharge, particularly in heavy type
On delivery locomotive, the inner surface organizational structure for engine cylinder cover material requires the strictest.
At present, in China's industry standard regulation, the metallographic for centrifugal cast cylinder sleeve detects position selection typically
Within nearly work surface 2mm scope, and the organism optical metallographic testing requirement of this cylinder sleeve is significantly larger than row
Industry requires: it requires that the tissue on whole cylinder sleeve cross section all should meet the requirements.Therefore, conventional centrifugal is used
Casting technique, due to centrifugal casting process melt consecutive solidification mode and the effect of centrifugal force, the cylinder sleeve of preparation
Although the tensile strength of material and hardness can meet product mechanical property requirements, but, alloy cylinder jacket makes
After a period of time, bore wear aggravates, and produces bigger gap between casing wall and piston ring, causes and sends out
Motivation becomes flat, and effective power reduces, and Oil Consumption significantly rises, and service life of aeroengine reduces.Therefore,
Research and development improve interior surface of cylinder liner organizational structure, it is thus achieved that have the aluminum of more high-wear resistance, more low abrasion coefficient
Alloy cylinder jacket is particularly important.
Summary of the invention
For the deficiencies in the prior art, an object of the present invention is to provide a kind of cylinder sleeve of engine centrifugal casting
Make method, it is intended on the premise of meeting tensile strength and hardness, control internal layer tissue morphology, improve material
Abrasion resistance properties, reduces the coefficient of friction of material and reduces engine consumption.
For achieving the above object, the technical solution used in the present invention is:
A kind of centrifugal casting method of engine cylinder linder, the method comprises the steps:
1) melting: carry out melting with high-quality steel scrap, molten iron and intermediate alloy for raw material in middle frequency furnace,
The chemical composition controlling cylinder sleeve of engine is: C 2.8-3.1, Si 2.6-3.0, Mn
1.2-1.5, 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 ferrum and inevitable impurity；Smelting temperature
For 1550-1600 DEG C；
2) breed: inoculation is carried out at twice, including adding breeding of heavy dose of 0.4%-0.6%
Agent carries out ladle inoculation for the first time and processes；Add the inovulant of low dose of 0.1%-0.3%
Carry out second time current-following inoculation to process；
3) cast: first make the rotating speed of centrifugal casting machine be 480-520 rev/min, pour into a mould；When watering
When fluence reaches half, rotating speed is made to improve 50 revs/min, then cast residue one semimetal；
4) cooling: pour to the interval time that discharges water be the 30-35 second, then water is cooled to below 200 DEG C；
5) tempering: being tempered in heat-treatment furnace by cylinder sleeve, temperature is 530 DEG C, is incubated 1.5-3
Hour, then cool down with 40-120 DEG C/h.
Having the beneficial effect that of cylinder sleeve of engine prepared by the present invention
1., on the basis of great many of experiments, by selected alloying component, coordinate rational technological design so that made
Standby cylinder sleeve of engine reaches following performance:
Mechanical property is: tensile strength sigmab≥300MPa；Hardness HB240-HB280.Tissue morphology: inner circle graphite
Length 100-120 μm, cylindrical graphite length 50-70 μm, internal layer graphite A type, outer layer graphite A, Type B；
The complex 12%～15% such as phosphorous, copper, chromium；Pearlite matrix 100%；Ferrite content ＜ 2%；
The most above-mentioned performance guarantee internal layer performance, improves the abrasion resistance properties of material, reduce material coefficient of friction and
Reduce engine consumption.Cylinder sleeve internal layer wearability more conventional centrifugal cast cylinder sleeve wearability improves 25-40%.
Detailed description of the invention
Embodiment one
A kind of centrifugal casting method of engine cylinder linder, the method comprises the steps:
1) melting: carry out melting with high-quality steel scrap, molten iron and intermediate alloy for raw material in middle frequency furnace,
The chemical composition controlling cylinder sleeve of engine is: C 2.8, Si 2.6, Mn 1.2, P≤0.2, S
≤ 0.10, Cr 0.4, Ni 0.1, Mo 0.2, Cu 0.6, Sn 0.3, surplus be ferrum and
Inevitably impurity；Smelting temperature is 1550 DEG C；
2) breed: inoculation is carried out at twice, enter including the inovulant adding heavy dose of 0.4%%
Row ladle inoculation for the first time processes；The inovulant adding low dose of 0.1%% carries out second
Secondary current-following inoculation processes；
3) cast: the rotating speed first making centrifugal casting machine is 480 revs/min, pours into a mould；When watering fluence
When reaching half, rotating speed is made to bring up to 530 revs/min, then cast residue one semimetal；
4) cooling: pour to the interval time that discharges water be 30 seconds, then water is cooled to below 200 DEG C；
5) tempering: being tempered in heat-treatment furnace by cylinder sleeve, temperature is 530 DEG C, insulation 1.5 is little
Time, then cool down with 40 DEG C/h.
After tested, the wearability of this cylinder sleeve of engine improves 28%.
Embodiment two
A kind of centrifugal casting method of engine cylinder linder, the method comprises the steps:
1) melting: carry out melting with high-quality steel scrap, molten iron and intermediate alloy for raw material in middle frequency furnace,
The chemical composition controlling cylinder sleeve of engine is: C 3.1, Si 3.0, Mn 1.5, P≤0.2, S
≤ 0.10, Cr 0.6, Ni 0.2, Mo 0.3, Cu 0.8, Sn 0.5, surplus be ferrum and
Inevitably impurity；Smelting temperature is 1600 DEG C；
2) breed: inoculation is carried out at twice, carry out including the inovulant adding heavy dose of 0.6%
Ladle inoculation for the first time processes；Add the inovulant of low dose of 0.3% carry out second time with
Stream inoculation；
3) cast: the rotating speed first making centrifugal casting machine is 520 revs/min, pours into a mould；When watering fluence
When reaching half, rotating speed is made to bring up to 570 revs/min, then cast residue one semimetal；
4) cooling: pour to the interval time that discharges water be 35 seconds, then water is cooled to below 200 DEG C；
5) tempering: being tempered in heat-treatment furnace by cylinder sleeve, temperature is 530 DEG C, is incubated 3 hours,
Then cool down with 120 DEG C/h.
After tested, the wearability of this cylinder sleeve of engine improves 35%.
Embodiment three
A kind of centrifugal casting method of engine cylinder linder, the method comprises the steps:
1) melting: carry out melting with high-quality steel scrap, molten iron and intermediate alloy for raw material in middle frequency furnace,
The chemical composition controlling cylinder sleeve of engine is: C 3.0, Si 2.8, Mn 1.4, P≤0.2, S
≤ 0.10, Cr 0.5, Ni 0.15, Mo 0.25, Cu 0.7, Sn 0.4, surplus is ferrum
And inevitable impurity；Smelting temperature is 1570 DEG C；
2) breed: inoculation is carried out at twice, carry out including the inovulant adding heavy dose of 0.5%
Ladle inoculation for the first time processes；Add the inovulant of low dose of 0.2% carry out second time with
Stream inoculation；
3) cast: the rotating speed first making centrifugal casting machine is 500 revs/min, pours into a mould；When watering fluence
When reaching half, rotating speed is made to bring up to 550 revs/min, then cast residue one semimetal；
4) cooling: pour to the interval time that discharges water be 35 seconds, then water is cooled to below 200 DEG C；
5) tempering: being tempered in heat-treatment furnace by cylinder sleeve, temperature is 530 DEG C, is incubated 2 hours,
Then cool down with 80 DEG C/h.
After tested, the wearability of this cylinder sleeve of engine improves 40%.
Applicant states, the present invention illustrates detailed process equipment and the technique of the present invention by above-described embodiment
Flow process, but the invention is not limited in above-mentioned detailed process equipment and technological process, i.e. do not mean that the present invention
Have to rely on above-mentioned detailed process equipment and technological process could be implemented.Person of ordinary skill in the field should
This understands, any improvement in the present invention, and the equivalence of raw material each to product of the present invention is replaced and auxiliary element
Interpolation, concrete way choice etc., within the scope of all falling within protection scope of the present invention and disclosure.
Claims (1)
1. a centrifugal casting method of engine cylinder linder, the method comprises the steps:
1) melting: carry out melting with high-quality steel scrap, molten iron and intermediate alloy for raw material in middle frequency furnace, control
The chemical composition of cylinder sleeve of engine processed is: C 3.0, Si 2.8, Mn 1.4, P≤0.2, S≤0.10, Cr 0.5,
Ni 0.15, Mo 0.25, Cu 0.7, Sn 0.4, surplus is ferrum and inevitable impurity；Smelting temperature
It it is 1570 DEG C；
2) breed: inoculation is carried out at twice, carry out first including the inovulant adding heavy dose of 0.5%
Secondary ladle inoculation processes；The inovulant adding low dose of 0.2% carries out second time current-following inoculation process；
3) cast: the rotating speed first making centrifugal casting machine is 500 revs/min, pours into a mould；Reach when watering fluence
During half, rotating speed is made to bring up to 550 revs/min, then cast residue one semimetal；
4) cooling: pour to the interval time that discharges water be 35 seconds, then water is cooled to below 200 DEG C；
5) tempering: being tempered in heat-treatment furnace by cylinder sleeve, temperature is 530 DEG C, is incubated 2 hours, so
After with 80 DEG C/h cool down；
6) after tested, the wearability of this cylinder sleeve of engine improves 40%.
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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 |
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| 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 CN102367561A (en) | 2012-03-07 |
| CN102367561B true CN102367561B (en) | 2016-12-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369116B (en) * | 2014-08-29 | 2017-03-08 | 中原内配集团股份有限公司 | A kind of piebald cylinder jacket of centrifugal casting production and its production technology |
| 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 |
| 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 |
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 |
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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 |
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Effective date of registration: 20160420 Address after: Lake Town, Xishan District People's road 214000 Jiangsu city of Wuxi province and red Ju Wei Village No. 100 Applicant after: Hua Wenwei Address before: 214000 Jiangsu City, Xishan District tin Beizhen North Guangming Village Chen Lane on the number (Chen Weijun), No. 15 () Applicant before: Chen Weijun |
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Effective date of registration: 20161130 Address after: 226600 Jiangsu Nantong Haian economic and Technological Development Zone Development Avenue Patentee after: Jiangsu Greenhub Technology Co., Ltd. Address before: Lake Town, Xishan District People's road 214000 Jiangsu city of Wuxi province and red Ju Wei Village No. 100 Patentee before: Hua Wenwei |
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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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