CN103388102A - Casting process for high abrasion-resistant and dust-resistant cylinder sleeve suitable for western area - Google Patents
Casting process for high abrasion-resistant and dust-resistant cylinder sleeve suitable for western area Download PDFInfo
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- CN103388102A CN103388102A CN2012101424859A CN201210142485A CN103388102A CN 103388102 A CN103388102 A CN 103388102A CN 2012101424859 A CN2012101424859 A CN 2012101424859A CN 201210142485 A CN201210142485 A CN 201210142485A CN 103388102 A CN103388102 A CN 103388102A
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- cylinder sleeve
- resistant
- casting
- engine
- casting process
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- 238000005299 abrasion Methods 0.000 title claims abstract description 8
- 238000005266 casting Methods 0.000 title abstract description 10
- 239000000428 dust Substances 0.000 title abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 21
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 7
- 239000000956 alloy Substances 0.000 claims abstract description 7
- 229910001563 bainite Inorganic materials 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 238000010791 quenching Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000002667 nucleating agent Substances 0.000 claims abstract description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 238000009395 breeding Methods 0.000 claims description 5
- 230000001488 breeding effect Effects 0.000 claims description 5
- 238000009400 out breeding Methods 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000000171 quenching effect Effects 0.000 abstract description 2
- 238000011081 inoculation Methods 0.000 abstract 1
- 239000010936 titanium Substances 0.000 description 9
- 229910001018 Cast iron Inorganic materials 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- GFNGCDBZVSLSFT-UHFFFAOYSA-N titanium vanadium Chemical compound [Ti].[V] GFNGCDBZVSLSFT-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a casting process for high abrasion-resistant and dust-resistant cylinder sleeve suitable for western area. The cylinder sleeve comprises 3.0-3.3% of C, 2.1-2.4% of Si, 0.8-1.1% of Mn, 0.1-0.2% of P, 0.02-0.08% of S, 0.35-0.45% of Ti, 0.2-0.4% of Sb, 0.8-1.1% of Cu, 0.25-0.35% of Cr and 90.62-92.38% of Fe. The casting process for the cylinder sleeve comprises the following steps of firstly processing Ti and Sb into synthetic particles with the diameter of 2-3 mm for use; mixing the alloy according to proportions and melting; adding the synthetic particles when a melting temperature reaches 1,550 DEG C; purifying for 6 minutes after the particles are added; then carrying out twice inoculations, firstly inoculating a nucleating agent in a large ladle and then inoculating in a casting ladle, wherein a casting temperature is 1,350 DEG C-1,320 DEG C; a casting speed is 2 kg/s; a cooling intensity is water-cooled 120 seconds; putting a blank with a temperature of about 600 DEG C into a solution for quenching; and transferring a metallographic structure of the cylinder sleeve into a lower bainite. The cylinder sleeve can increase usage performance and abrasion performance of the engine, prolongs service life, reduces energy consumption, improves exhaust quality of the engine and protects natural environment.
Description
Technical field
The present invention relates to cylinder liner casting technology, be specifically related to a kind of western high abrasion desertification dirt cylinder liner casting technology.
Background technology
Due to the deterioration increasingly of environment, China's most areas is northern especially, central and west regions, and sand and dust are larger, and hard particulate very easily sucks engine cylinder, produces abrasive wear, has a strong impact on the work-ing life of engine.
Cylinder is the engine core part, is the space of gas compression, burning expansion, is the track of piston motion guiding.The highest transient temperature in combustion processes is up to 2200～2400 ℃, the highest transient pressure is up to 12～14MPa, the inwall of cylinder sleeve directly is subject to the effect of high temperature, high pressure, fusible, if cylinder sucks the particulate sand and dust again, make cylinder inner wall increase again abrasive wear under the extreme working conditions that worsens, further shortened the work-ing life of engine.
Cylinder sleeve is one of important friction pair of engine, and its wear resistance directly has influence on the consumption of life-span, power, fuel oil and the machine oil of engine.Along with improving constantly of engine movement velocity, mechanical property stress and thermal stresses that its cylinder sleeve, piston, piston ring bear are more and more high, the wearing and tearing of the cylinder of diesel engine internal friction pair that causes therefrom, and particularly the sand and dust abrasive wear is even more serious.
The material cylinder sleeve such as the traditional high-phosphorous iron of China, boron cast iron, low-alloy cast iron, vanadium-titanium cast iron have not adapted to the demand of present high-grade engine with supercharger.Its main wear form has: abrasive wear, scuff wear, corrosive wear etc.Along with the improving constantly of diesel engine strengthening, its movement velocity and explosion pressure all are greatly improved, so the wear problem of cylinder sleeve is also day by day serious in recent years.Therefore, development anti-abrasion type cylinder sleeve is very important.
Summary of the invention
The invention provides a kind of western high abrasion desertification dirt cylinder liner casting technology, adopt this kind cylinder sleeve to improve the engine use properties, increase the service life, reduce energy consumption, improve the engine exhaust emission quality, the conservation of nature environment.
Technical solution of the present invention is to contain following alloying element: C3.0～3.3% in this cylinder sleeve; Si2.1～2.4%; Mn0.8～1.1%; P0.1～0.2%; S0.02～0.08%; Ti0.35～0.45%; Sb0.2～0.4%; Cu0.8～1.1%; Cr0.25～0.35%; Fe90.62～92.38%.
Cylinder sleeve method of manufacturing technology of the present invention is: at first Ti and Sb being processed into synthetic particle is that 2-3mm is standby; Then the alloy melting of preparing burden in proportion, add synthetic particle in proportion when smelting temperature reaches 1550 ℃, particle added afterpurification 6 minutes, then carries out breeding for twice, first nucleating agent bred in large bag, then breeding in pouring ladle; Teeming temperature is 1350 ℃～1320 ℃; Pouring speed is 2kg/s; Cooling intensity is water-cooled 120 seconds; Put into solution during 600 ℃ of left and right after the blank depanning and quench, make the metallographic structure of cylinder sleeve change lower bainite into.
The present invention has the following advantages: 1. add Ti and Sb to synthesize particle in Cast Iron Melts, particle dispersion is even, the dense structure of cylinder sleeve, and Heat stability is good, have good oil storage capacity and excellent wear resisting property and resistance to corrosion; 2. the method flow of the synthetic particle of Ti and Sb is simple, and cost is low, is easy to realize industrialization production; 3. Ti and Sb are strong graphite elements, have the pearlitic effect of refinement graphite, form the stable especially high-intensity compound that contains Ti and Sb, and disperse is dispersed in the matrix of Cast iron liner, strengthen wear resistance.4. breed further refinement metallographic structure by twice, strengthen mechanical property; 5. utilize the immediate quenching of depanning blank, make it change the lower bainite tissue into, make engine more advance one one and improve its wear resistance, adapt to the more severe environment work of Midwest sand and dust.
Embodiment
Example 1: at first Ti and Sb being processed into synthetic particle is that 2-3mm is standby; Then prepare burden in proportion melting, wherein C3.0% of alloy; Si2.1%; Mn0.8%; P0.1%; S0.02%; Cu0.8%; Cr0.25%; When reaching 1550 ℃, Fe92.38%, smelting temperature add in proportion synthetic particle, wherein Ti0.35%, Sb0.2%, and particle added afterpurification 6 minutes, then carried out breeding for twice, first nucleating agent was being bred in large bag, then was breeding in pouring ladle; Teeming temperature is 1350 ℃～1320 ℃; Pouring speed is 2kg/s; Cooling intensity is water-cooled 120 seconds; Put into solution during 600 ℃ of left and right after the blank depanning and quench, make the metallographic structure of cylinder sleeve change lower bainite into.
Example 2: at first Ti and Sb being processed into synthetic particle is that 2-3mm is standby; Then prepare burden in proportion melting, wherein C3.3% of alloy; Si2.4%; Mn1.1%; P0.2%; S0.08%; Cu1.1%; Cr0.35%; When reaching 1550 ℃, Fe90.62%, smelting temperature add in proportion synthetic particle, wherein Ti0.45%, Sb0.4%, and particle added afterpurification 6 minutes, then carried out breeding for twice, first nucleating agent was being bred in large bag, then was breeding in pouring ladle; Teeming temperature is 1350 ℃～1320 ℃; Pouring speed is 2kg/s; Cooling intensity is water-cooled 120 seconds; Put into solution during 600 ℃ of left and right after the blank depanning and quench, make the metallographic structure of cylinder sleeve change lower bainite into.
Example 3: at first Ti and Sb being processed into synthetic particle is that 2-3mm is standby; Then prepare burden in proportion melting, wherein C3.15% of alloy; Si2.25%; Mn0.95%:P0.15%; S0.05%; Cu0.95%; Cr0.3%; When reaching 1550 ℃, Fe91.5%, smelting temperature add in proportion synthetic particle, wherein Ti0.4%, Sb0.3%, and particle added afterpurification 6 minutes, then carried out breeding for twice, first nucleating agent was being bred in large bag, then was breeding in pouring ladle; Teeming temperature is 1350 ℃～1320 ℃; Pouring speed is 2kg/s; Cooling intensity is water-cooled 120 seconds; Put into solution during 600 ℃ of left and right after the blank depanning and quench, make the metallographic structure of cylinder sleeve change lower bainite into.
Introduce the synthetic granuloplastic cylinder sleeve of Ti and Sb in the solution of HT300 cast iron quality, tensile strength is greater than 300MPa, and hardness is greater than 310HB.
Claims (1)
1. high abrasion desertification dirt engine jacket, contain following element: C3.0～3.3% in this cylinder sleeve; Si2.1～2.4%; Mn0.8～1.1%; P0.1～0.2%; S0.02～0.08%; Ti0.35～0.45%; Sb0.2～0.4%; Cu0.8～1.1%; Cr0.25～0.35%; Fe90.62～92.38%; It is characterized in that: at first Ti and Sb being processed into synthetic particle is that 2-3mm is standby; Then the alloy melting of preparing burden in proportion, add synthetic particle in proportion when smelting temperature reaches 1550 ℃, particle added afterpurification 6 minutes, then carries out breeding for twice, first nucleating agent bred in large bag, then breeding in pouring ladle; Teeming temperature is 1350 ℃～1320 ℃; Pouring speed is 2kg/s; Cooling intensity is water-cooled 120 seconds; Put into solution during 600 ℃ of left and right after the blank depanning and quench, make the metallographic structure of cylinder sleeve change lower bainite into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101424859A CN103388102A (en) | 2012-05-09 | 2012-05-09 | Casting process for high abrasion-resistant and dust-resistant cylinder sleeve suitable for western area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101424859A CN103388102A (en) | 2012-05-09 | 2012-05-09 | Casting process for high abrasion-resistant and dust-resistant cylinder sleeve suitable for western area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103388102A true CN103388102A (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101424859A Pending CN103388102A (en) | 2012-05-09 | 2012-05-09 | Casting process for high abrasion-resistant and dust-resistant cylinder sleeve suitable for western area |
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| CN (1) | CN103388102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107365939A (en) * | 2017-08-28 | 2017-11-21 | 广东荻赛尔机械铸造股份有限公司 | Engine is cylinder iron and preparation method thereof |
-
2012
- 2012-05-09 CN CN2012101424859A patent/CN103388102A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107365939A (en) * | 2017-08-28 | 2017-11-21 | 广东荻赛尔机械铸造股份有限公司 | Engine is cylinder iron and preparation method thereof |
| CN107365939B (en) * | 2017-08-28 | 2019-08-02 | 广东荻赛尔机械铸造股份有限公司 | Engine is cylinder iron and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20131113 |