CN101476091A - Pipe drawing continuous casting thin wall cylinder jacket and foundry technique thereof - Google Patents
Pipe drawing continuous casting thin wall cylinder jacket and foundry technique thereof Download PDFInfo
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- CN101476091A CN101476091A CNA2009100291862A CN200910029186A CN101476091A CN 101476091 A CN101476091 A CN 101476091A CN A2009100291862 A CNA2009100291862 A CN A2009100291862A CN 200910029186 A CN200910029186 A CN 200910029186A CN 101476091 A CN101476091 A CN 101476091A
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Abstract
The invention discloses a tube-drawing continuous-casting thin-wall cylinder cover and the casting technique thereof. The cylinder cover comprises the following components: C of 2.7-2.9%, Si of 1.8-2.0%, Mn of 0.25-0.40%, Cu of 0.60-0.90%, Ni of 0.20-0.40%, Mo of 0.25-0.45%, Cr of 0.20-0.35%, Re of 0.15-0.25%, Sb of 0.10-0.20%, and Fe of 92.15-93.75%. The casting technique comprises steps of selecting materials according to the above components and smelting at 1560 DEG C; purifying after smelting and keeping the temperature for 5 minutes, performing inoculation to the added silicon barium powder of 0.6%; performing the tube-drawing continuous-casting process after the inoculation with a pouring temperature of 1370-1420 DEG C, a pouring rate of 1.6Kg/s, and a propulsion pressure of 2.5MPa/cm2; cooling, dragging and cutting off after the pouring with a dragging force of 2000kg/N, a cutting-off length of 2m; cutting off the rough parts into single bodies of 0.2m; rough turning top circle, precision boring inner bores, honing flat reticulate patterns, polishing, cleaning, inspecting, packaging and putting into warehouse after performing aging treatment to a single body of 4.5 hours. The invention reduces the utilized quantity of materials and improves the mechanical property and metallographic structure of cylinder covers.
Description
Technical field
The present invention relates to thin wall cylinder cover and casting technique thereof, be specifically related to a kind of pipe drawing continuous casting thin wall cylinder jacket and casting technique thereof, be applicable to the supporting of automobile, car engine with supercharger.
Background technology
At present, the manufacturing process of cylinder sleeve all adopts sand mold casting and rotary casting.During sand mold casting, material use efficiency has only 1/5th, and metallographic structure is loose, and mechanical property is low, and work efficiency is low, and scrap rate is very high; During metal rotary casting, owing to be subjected to mould to go out the restriction of mode structure, certain depanning gradient need be arranged, because of the rotary casting action of centrifugal force, cause cylinder liner blank cylindrical hardness height simultaneously, internal surface hardness is soft, difference of hardness is bigger, the surplus of inside and outside wall is very big, and material use efficiency is low, only is 1/3rd of blank weight.These two kinds of casting techniques can not adapt to the needs of current energy dilemma and high-grade engine.
Summary of the invention
The objective of the invention is to: a kind of pipe drawing continuous casting thin wall cylinder jacket and casting technique thereof are provided, reduce the material use amount, reduce energy consumption, improve the mechanical property and the metallographic structure of cylinder sleeve, strengthen wear resistance, prolong engine work-ing life.
The technical scheme that technical solution problem of the present invention is adopted is: this cylinder sleeve is made up of following weight percentages: C 2.7～2.9%, Si 1.8～2.0%, Mn 0.25～0.40%, Cu 0.60～0.90%, and Ni 0.20～0.40%, and Mo 0.25～0.45%, Cr 0.20～0.35%, Re 0.15～0.25%, and Sb 0.10～0.20%, and Fe 92.15～93.75%.
The casting technique of this cylinder sleeve comprises following concrete steps: 1, select materials 1560 ℃ of meltings by the requirement of above-mentioned cylinder sleeve component; 2, melting after insulation is 5 minutes, adds 0.6% silicon barium powder inoculation of molten steel weight; 3, tube pulling formula continuous casting after the inoculation, teeming temperature 1370-1420 ℃, pouring speed 1.6kg/s, propelling pressure 2.5MPa/cm
24, the cast postcooling, draw, cut off, pulling force 2000kg/N cuts off length 2m; 5, blank continues to cut off into the monomer of 0.2m; 6, to monomer ageing treatment rough turn successively cylindrical, right boring endoporus, finish turning cylindrical and chamfering after 4.5 hours, rough honing endoporus, platform reticulate pattern honing, polishing, cleaning, check, packing warehouse-in.
The blank of this thin wall cylinder cover adopts the tube drawing cooling casting, and the surplus of inside and outside circle is 1.5 millimeters; Cylinder sleeve is a straight barrel type, cylindrical is a minute surface, on the upper surface of cylinder sleeve and the cylindrical between the lower surface, establish chamfering, chamfering down, upper surface and the internal surface between the lower surface in cylinder sleeve are established chamfering, following chamfering, distribution platform reticulate pattern on interior surface of cylinder liner, platform reticulate pattern is made up of deep trench and chain-wales.
The technical parameter of described platform reticulate pattern is: roughness Rz0.55～0.90 μ m, core roughness Rk 0.35～0.65 μ m, reticulate pattern peak height Rpk 0.3 μ m, reticulate pattern gash depth 1.3～2.0 μ m, the ratio R vk/Rk of reticulate pattern groove and core roughness 〉=2.5, less than 7%, reality supports contact area Mr2 to 1 μ m with upper support rate Mr1〉70%.
The present invention has the following advantages: 1, adopt the tube drawing cooling casting, the surplus of inside and outside circle is only stayed 1.5 millimeters, and its work efficiency is 20 times of rotary casting, and material use efficiency is 70%; 2, form platform reticulate pattern by chain-wales and deep trench, chain-wales mainly plays the piston ring high speed to-and-fro movement effect of friction pair and sets up the equally distributed oil lamella of high strength, deep trench works the lubricating oil effect that stores, strengthen lubricity, reduce friction, strengthen wear resistance, prolong engine fittings work-ing life, be suitable for the supporting of high-grade engine with supercharger.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1. upper surface, 2. chamfering on the cylindrical, 3. cylindrical, 4. chamfering under the cylindrical, 5. lower surface, 6. chamfering under the internal surface, 7. internal surface, 8. platform reticulate pattern, 9. chain-wales, 10. deep trench, chamfering on 11. internal surfaces.
Embodiment
Below by embodiment the present invention is carried out concrete description; be necessary to be pointed out that at this embodiment only is used for the present invention is further specified; can not be interpreted as limiting the scope of the invention, the person skilled in art can make some nonessential improvement and adjustment according to foregoing.
Embodiment 1: cylinder sleeve is made up of following weight percentages: C 2.7%, and Si 1.8%, and Mn 0.25%, and Cu 0.60%, and Ni 0.20%, and Mo 0.25%, and Cr 0.20%, and Re 0.15%, and Sb 0.10%, and Fe 93.75%.
Cast cylinder sleeve according to following steps: 1, select materials 1560 ℃ of meltings by the requirement of above-mentioned cylinder sleeve component; 2, melting after insulation is 5 minutes, adds 0.6% silicon barium powder inoculation of molten steel weight; 3, tube pulling formula continuous casting after the inoculation, 1370 ℃ of teeming temperatures, pouring speed 1.6kg/s, propelling pressure 2.5MPa/cm
24, the cast postcooling, draw, cut off, pulling force 2000kg/N cuts off length 2m; 5, blank continues to cut off into the monomer of 0.2m; 6, to monomer ageing treatment rough turn successively cylindrical, right boring endoporus, finish turning cylindrical and chamfering after 4.5 hours, rough honing endoporus, platform reticulate pattern honing, polishing, cleaning, check, packing warehouse-in.
Adopt the blank of tube drawing cooling casting thin wall cylinder cover, the inside and outside circle surplus is 1.5mm, cut off the single-piece blank; Cylinder sleeve is a straight barrel type, cylindrical is a minute surface, establish on the cylindrical chamfering 4 under the chamfering 2 and cylindrical on the upper surface 1 of cylinder sleeve and the cylindrical 3 between the lower surface 5, establishing under the internal surface chamfering 11 on the chamfering 6 and internal surface on the upper surface 1 of cylinder sleeve and the inner surface of cylinder liner 7 between the lower surface 5, uniform distribution platform reticulate pattern 8 on interior surface of cylinder liner 7, platform reticulate pattern 8 is made up of chain-wales 9 and deep trench 10.
The technical parameter of described platform reticulate pattern is: roughness Rz 0.55 μ m, core roughness Rk 0.35 μ m, reticulate pattern peak height Rpk 0.3 μ m, reticulate pattern gash depth 1.3 μ m, the ratio R vk/Rk 2.5 of reticulate pattern groove and core roughness, 1 μ m is with upper support rate Mr1 7%, and reality supports contact area Mr2 70%.
Embodiment 2: cylinder liner material is made up of following weight percentages: C 2.8%, and Si 1.9%, and Mn 0.325%, and Cu 0.75%, and Ni 0.3%, and Mo 0.35%, and Cr 0.275%, and Re 0.175%, and Sb 0.3%, and Fe 92.825%.
Cast cylinder sleeve according to following steps: 1, select materials 1560 ℃ of meltings by the requirement of above-mentioned cylinder sleeve component; 2, melting after insulation is 5 minutes, adds 0.6% silicon barium powder inoculation of molten steel weight; 3, tube pulling formula continuous casting after the inoculation, 1395 ℃ of teeming temperatures, pouring speed 1.6kg/s, propelling pressure 2.5MPa/cm
24, the cast postcooling, draw, cut off, pulling force 2000kg/N cuts off length 2m; 5, blank continues to cut off into the monomer of 0.2m; 6, to monomer ageing treatment rough turn successively cylindrical, right boring endoporus, finish turning cylindrical and chamfering after 4.5 hours, rough honing endoporus, platform reticulate pattern honing, polishing, cleaning, check, packing warehouse-in.
Adopt the blank of tube drawing cooling casting thin wall cylinder cover, the inside and outside circle surplus is 1.5mm, cylinder sleeve is a straight barrel type, cylindrical is a minute surface, establish on the cylindrical chamfering 4 under the chamfering 2 and cylindrical on the upper surface 1 of cylinder sleeve and the cylindrical 3 between the lower surface 5, establishing under the internal surface chamfering 11 on the chamfering 6 and internal surface on the upper surface 1 of cylinder sleeve and the inner surface of cylinder liner 7 between the lower surface 5, uniform distribution platform reticulate pattern 8 on interior surface of cylinder liner 7, platform reticulate pattern 8 is made up of chain-wales 9 and deep trench 10.
The technical parameter of described platform reticulate pattern is: roughness Rz 0.70 μ m, core roughness Rk 0.50 μ m, reticulate pattern peak height Rpk 0.3 μ m, reticulate pattern gash depth 1.60 μ m, the ratio R vk/Rk of reticulate pattern groove and core roughness 〉=2.6,1 μ m is with upper support rate Mr1 6%, and reality supports contact area Mr2 72%.
Embodiment 3: cylinder liner material is made up of following weight percentages: C 2.9%, and Si 2.0%, and Mn 0.40%, and Cu 0.90%, and Ni 0.40%, and Mo 0.45%, and Cr 0.35%, and Re 0.25%, and Sb 0.20%, and Fe 92.15%.
Cast cylinder sleeve according to following steps: 1, select materials 1560 ℃ of meltings by the requirement of above-mentioned cylinder sleeve component; 2, melting after insulation is 5 minutes, adds 0.6% silicon barium powder inoculation of molten steel weight; 3, tube pulling formula continuous casting after the inoculation, 1420 ℃ of teeming temperatures, pouring speed 1.6kg/s, propelling pressure 2.5MPa/cm
24, the cast postcooling, draw, cut off, pulling force 2000kg/N cuts off back degree 2m; 5, blank continues to cut off into the monomer of 0.2m; 6, to monomer ageing treatment rough turn successively cylindrical, right boring endoporus, finish turning cylindrical and chamfering after 4.5 hours, rough honing endoporus, platform reticulate pattern honing, polishing, cleaning, check, packing warehouse-in.
Adopt the blank of tube drawing cooling casting thin wall cylinder cover, the inside and outside circle surplus is 1.5mm, cylinder sleeve is a straight barrel type, cylindrical is a minute surface, establish on the cylindrical chamfering 4 under the chamfering 2 and cylindrical on the upper surface 1 of cylinder sleeve and the cylindrical 3 between the lower surface 5, establishing under the internal surface chamfering 11 on the chamfering 6 and internal surface on the upper surface 1 of cylinder sleeve and the inner surface of cylinder liner 7 between the lower surface 5, uniform distribution platform reticulate pattern 8 on interior surface of cylinder liner 7, platform reticulate pattern 8 is made up of chain-wales 9 and deep trench 10.
The technical parameter of described platform reticulate pattern is: roughness Rz 0.90 μ m, core roughness Rk 0.65 μ m, reticulate pattern peak height Rpk 0.3 μ m, reticulate pattern gash depth 2.0 μ m, the ratio R vk/Rk 2.7 of reticulate pattern groove and core roughness, 1 μ m is with upper support rate Mr1 5%, and reality supports contact area Mr2 75%.
Claims (4)
1. pipe drawing continuous casting thin wall cylinder jacket, it is characterized in that this cylinder sleeve is made up of following weight percentages: C 2.7～2.9%, Si 1.8～2.0%, and Mn 0.25～0.40%, Cu0.60～0.90%, Ni 0.20～0.40%, Mo 0.25～0.45%, and Cr 0.20～0.35%, and Re 0.15～0.25%, Sb 0.10～0.20%, and Fe 92.15～93.75%.
2. the casting technique of pipe drawing continuous casting thin wall cylinder jacket according to claim 1 is characterized in that the casting technique of this cylinder sleeve comprises following concrete steps: 1, select materials 1560 ℃ of meltings by the requirement of above-mentioned cylinder sleeve component; 2, melting after insulation is 5 minutes, adds 0.6% silicon barium powder inoculation of molten steel weight; 3, tube pulling formula continuous casting after the inoculation, teeming temperature 1370-1420 ℃, pouring speed 1.6kg/s, propelling pressure 2.5MPa/cm
24, the cast postcooling, draw, cut off, pulling force 2000kg/N cuts off length 2m; 5, blank continues to cut off into the monomer of 0.2m; 6, to monomer ageing treatment rough turn successively cylindrical, right boring endoporus, finish turning cylindrical and chamfering after 4.5 hours, rough honing endoporus, platform reticulate pattern honing, polishing, cleaning, check, packing warehouse-in.
3. the casting technique of pipe drawing continuous casting thin wall cylinder jacket according to claim 2, it is characterized in that: the blank of this thin wall cylinder cover adopts the tube drawing cooling casting, the surplus of inside and outside circle is 1.5 millimeters, cylinder sleeve is a straight barrel type, cylindrical (3) is a minute surface, on the upper surface 1 of cylinder sleeve and the cylindrical (3) between lower surface (5), establish chamfering (2), following chamfering (4), upper surface and the internal surface between the lower surface (7) in cylinder sleeve are established chamfering (11), following chamfering (6), go up distribution platform reticulate pattern (8) at interior surface of cylinder liner (7), platform reticulate pattern (8) is made up of deep trench (10) and chain-wales (9).
4. the casting technique of pipe drawing continuous casting thin wall cylinder jacket according to claim 2, it is characterized in that described platform reticulate pattern parameter is: roughness Rz0.55～0.90 μ m, core roughness Rk0.35～0.65 μ m, reticulate pattern peak height Rpk0.3 μ m, reticulate pattern gash depth 1.3～2.0 μ m, less than 7%, reality supports contact area Mr2 to the ratio R vk/Rk of reticulate pattern groove and core roughness 〉=2.5,1 μ m with upper support rate Mr1〉70%.
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| CNA2009100291862A CN101476091A (en) | 2009-01-16 | 2009-01-16 | Pipe drawing continuous casting thin wall cylinder jacket and foundry technique thereof |
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| CNA2009100291862A CN101476091A (en) | 2009-01-16 | 2009-01-16 | Pipe drawing continuous casting thin wall cylinder jacket and foundry technique thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358928A (en) * | 2011-09-28 | 2012-02-22 | 重庆大学 | Self-generated mixed particle-reinforced aluminum alloy cylinder sleeve and preparation method thereof |
| CN103469108A (en) * | 2013-09-05 | 2013-12-25 | 无锡双友石化机械有限公司 | Diameter-enlarging cone and manufacturing process thereof |
| CN106001450A (en) * | 2016-06-30 | 2016-10-12 | 娄土岭 | Cylinder sleeve casting technology |
| CN106523171A (en) * | 2016-11-02 | 2017-03-22 | 中原内配集团股份有限公司 | New energy cylinder sleeve and production method thereof |
| CN106736312A (en) * | 2017-03-08 | 2017-05-31 | 聚兴(福建)机械股份有限公司 | A kind of manufacture method of high intensity super abrasive cylinder sleeve |
| CN109844292A (en) * | 2016-10-20 | 2019-06-04 | 本田技研工业株式会社 | Component with sliding contact surface |
| CN113564452A (en) * | 2021-07-13 | 2021-10-29 | 山西滨腾机械有限公司 | Water quenching lining plate and preparation method and application thereof |
| CN114810407A (en) * | 2022-05-07 | 2022-07-29 | 安庆帝伯格茨缸套有限公司 | Cylinder sleeve with low-friction inner circle reticulate pattern and preparation method thereof |
-
2009
- 2009-01-16 CN CNA2009100291862A patent/CN101476091A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358928A (en) * | 2011-09-28 | 2012-02-22 | 重庆大学 | Self-generated mixed particle-reinforced aluminum alloy cylinder sleeve and preparation method thereof |
| CN103469108A (en) * | 2013-09-05 | 2013-12-25 | 无锡双友石化机械有限公司 | Diameter-enlarging cone and manufacturing process thereof |
| CN103469108B (en) * | 2013-09-05 | 2015-10-21 | 无锡双友石化机械有限公司 | Expanding cone and manufacture craft thereof |
| CN106001450A (en) * | 2016-06-30 | 2016-10-12 | 娄土岭 | Cylinder sleeve casting technology |
| CN109844292A (en) * | 2016-10-20 | 2019-06-04 | 本田技研工业株式会社 | Component with sliding contact surface |
| CN106523171A (en) * | 2016-11-02 | 2017-03-22 | 中原内配集团股份有限公司 | New energy cylinder sleeve and production method thereof |
| CN106736312A (en) * | 2017-03-08 | 2017-05-31 | 聚兴(福建)机械股份有限公司 | A kind of manufacture method of high intensity super abrasive cylinder sleeve |
| CN106736312B (en) * | 2017-03-08 | 2019-02-19 | 聚兴(福建)机械股份有限公司 | A kind of manufacturing method of high intensity super abrasive cylinder sleeve |
| CN113564452A (en) * | 2021-07-13 | 2021-10-29 | 山西滨腾机械有限公司 | Water quenching lining plate and preparation method and application thereof |
| CN113564452B (en) * | 2021-07-13 | 2022-05-20 | 山西滨腾机械有限公司 | Water quenching lining plate and preparation method and application thereof |
| CN114810407A (en) * | 2022-05-07 | 2022-07-29 | 安庆帝伯格茨缸套有限公司 | Cylinder sleeve with low-friction inner circle reticulate pattern and preparation method thereof |
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Open date: 20090708 |