CN105296839A - Cylinder sleeve manufacturing process - Google Patents
Cylinder sleeve manufacturing process Download PDFInfo
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- CN105296839A CN105296839A CN201510922057.1A CN201510922057A CN105296839A CN 105296839 A CN105296839 A CN 105296839A CN 201510922057 A CN201510922057 A CN 201510922057A CN 105296839 A CN105296839 A CN 105296839A
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention provides a cylinder sleeve manufacturing process, relating to the technical field of cylinder sleeve manufacturing. The process comprises the following steps: mixing: mixing pig iron with an additive according to a certain proportion, wherein the mass ratio of pig iron to the additive is (85-90) to (10-15); smelting: putting the prepared material into a large intermediate frequency furnace to be smelted; casting: injecting molten iron obtained after smelting into a casting ladle to be cast; demolding: carrying out demolding treatment on a cast-molded cylinder sleeve; spraying treatment: carrying out spraying treatment on the surface of a casting coming out of a mold; and mechanical cutting: finally carrying out mechanical cutting. The process has the beneficial effects that the process flow is rigorous; the machined product has higher quality; the inner surface of the cylinder sleeve has good temperature change resistance and corrosion resistance and good metallic luster; the natural environment is protected; and meanwhile, good economic and environmental benefits can be produced.
Description
Technical field
The present invention relates to cylinder sleeve manufacturing technology field, particularly relate to a kind of cylinder sleeve manufacturing process.
Background technology
In cylinder sleeve, table is by high-temperature high-pressure fuel gas direct effect, and with piston ring and skirt of piston, high-speed slide friction occurs all the time.Appearance contacts with water coolant, produces serious thermal stresses, by cooling water corrosion under the larger temperature difference.Piston not only aggravates table friction in it to the transverse thrust of cylinder sleeve, and it is bending to make it produce.When transverse thrust changes direction, piston also clashes into cylinder sleeve.Be subject to larger installation pretightening force in addition.Gaseous tension makes cylinder wall produce tangential stress and radial compressive stress, and maximum at internal surface, and this stress is all dither stress.Because casing wall internal-external temperature difference produces great thermal stresses, make internal surface generation stress at general temperature and cooling surface exists tensile stress.But under extra-high temperature, nearly internal surface creep of metals viscous deformation, and namely form residual tension at internal surface after cooling, this low-frequency stress caused with starting, change of stopping can make fatigue of materials.
Summary of the invention
The invention provides a kind of cylinder sleeve manufacturing process, comprise batching, melting, casting, the demoulding, cleaning mold, spray treatment and cut mechanically.
A kind of cylinder sleeve manufacturing process, it is characterized in that, comprise batching, melting, casting, the demoulding, cleaning mold, spray treatment and cut mechanically, cylinder sleeve manufacturing process is as follows:
(1) prepare burden: prepare burden according to the pig iron and additive certain proportion, the mass ratio of the pig iron and additive is 85-90:10-15;
(2) melting: batching will be prepared and put in large-scale intermediate frequency furnace and carry out melting;
(3) cast: the molten iron after melting is injected in casting ladle casts;
(4) demoulding: again the cylinder sleeve after cast molding is carried out demoulding process;
(5) spray treatment: the foundry goods after membrane carries out surface spraying process;
(6) cut mechanically.
Preferably, in described step (1), pig iron composition percentage composition is prepared burden: the pig iron: 20-30%, scrap steel 10-20%, waste iron filing 30-50%.
Preferably, additive component percentage composition C:3.4-3.6% in described step (1), Si:1.6-1.8%, Mn:0.5-0.7%, P:0.05-0.15%, S:0.04-0.06%, Cr:0.05-0.15%, nucleating agent: 0.9%.
Preferably, sampling chemical examination when smelting temperature reaches 1200-1300 DEG C in described step (2), then according to chemical composition analysis result adjustment molten iron composition, when smelting temperature reaches 1550 ± 5 DEG C, soaking time controls at 2-3min.
Preferably, cast in casting ladle in described step (3) and breed, pouring temperature is 1320-1350 DEG C, and casting rate is 2-3kg/s.
Preferably, in described step (5), the coating composition of spray treatment is sodium bentonite 40-50 part, food filter aid 90-100 part, silica powder 90-100 part, washing powder 0.3-0.5 part, water 550-580 part.
Beneficial effect: the invention provides a kind of cylinder sleeve manufacturing process, relate to cylinder sleeve manufacturing technology field, comprise batching, melting, casting, the demoulding, spray treatment and cut mechanically, prepare burden according to the pig iron and additive certain proportion, the mass ratio of the pig iron and additive is 85-90:15-10, batching will be prepared put in large-scale intermediate frequency furnace and carry out melting, molten iron after melting is injected in casting ladle casts, again the cylinder sleeve after cast molding is carried out demoulding process, foundry goods after membrane carries out surface spraying process, finally, then carry out cut mechanically.Present invention process flow process is rigorous, and the quality product of processing is higher, the energy of resistance to temperature change of interior surface of cylinder liner and well anticorrosion, and has good metalluster, conservation of nature environment, will produce good economic benefit and environmental benefit simultaneously.
Embodiment
The technique means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
embodiment 1:
A kind of cylinder sleeve manufacturing process, it is characterized in that, comprise batching, melting, casting, the demoulding, cleaning mold, spray treatment and cut mechanically, cylinder sleeve manufacturing process is as follows:
(1) prepare burden: prepare burden according to the pig iron and additive certain proportion, the mass ratio of the pig iron and additive is 85:10;
(2) melting: batching will be prepared and put in large-scale intermediate frequency furnace and carry out melting;
(3) cast: the molten iron after melting is injected in casting ladle casts;
(4) demoulding: again the cylinder sleeve after cast molding is carried out demoulding process;
(5) spray treatment: the foundry goods after membrane carries out surface spraying process;
(6) cut mechanically.
Wherein, in described step (1), pig iron composition percentage composition is prepared burden: the pig iron: 20%, scrap steel 10%, waste iron filing 30%; Additive component percentage composition C:3.4% in described step (1), Si:1.6%, Mn:0.5%, P:0.05%, S:0.04%, Cr:0.05%, nucleating agent: 0.9%; Sampling chemical examination when smelting temperature reaches 1200 DEG C in described step (2), then according to chemical composition analysis result adjustment molten iron composition, when smelting temperature reaches 1545 DEG C, soaking time controls at 2min; Cast in casting ladle in described step (3) and breed, pouring temperature is 1320 DEG C, and casting rate is 2kg/s; In described step (5), the coating composition of spray treatment is sodium bentonite 40 parts, food filter aid 90 parts, silica powder 90 parts, 0.3 part, washing powder, 550 parts, water.
embodiment 2:
A kind of cylinder sleeve manufacturing process, it is characterized in that, comprise batching, melting, casting, the demoulding, cleaning mold, spray treatment and cut mechanically, cylinder sleeve manufacturing process is as follows:
(1) prepare burden: prepare burden according to the pig iron and additive certain proportion, the mass ratio of the pig iron and additive is 86:12;
(2) melting: batching will be prepared and put in large-scale intermediate frequency furnace and carry out melting;
(3) cast: the molten iron after melting is injected in casting ladle casts;
(4) demoulding: again the cylinder sleeve after cast molding is carried out demoulding process;
(5) spray treatment: the foundry goods after membrane carries out surface spraying process;
(6) cut mechanically.
Wherein, in described step (1), pig iron composition percentage composition is prepared burden: the pig iron: 25%, scrap steel 15%, waste iron filing 40%; Additive component percentage composition C:3.5% in described step (1), Si:1.7%, Mn:0.6%, P:0.10%, S:0.05%, Cr:0.10%, nucleating agent: 0.9%; Sampling chemical examination when smelting temperature reaches 1200-1300 DEG C in described step (2), then according to chemical composition analysis result adjustment molten iron composition, when smelting temperature reaches 1550 DEG C, soaking time controls at 2.5min; Cast in casting ladle in described step (3) and breed, pouring temperature is 1330 DEG C, and casting rate is 2.5kg/s; In described step (5), the coating composition of spray treatment is sodium bentonite 45 parts, food filter aid 95 parts, silica powder 95 parts, 0.4 part, washing powder, 560 parts, water.
embodiment 3:
A kind of cylinder sleeve manufacturing process, it is characterized in that, comprise batching, melting, casting, the demoulding, cleaning mold, spray treatment and cut mechanically, cylinder sleeve manufacturing process is as follows:
(1) prepare burden: prepare burden according to the pig iron and additive certain proportion, the mass ratio of the pig iron and additive is 90:15;
(2) melting: batching will be prepared and put in large-scale intermediate frequency furnace and carry out melting;
(3) cast: the molten iron after melting is injected in casting ladle casts;
(4) demoulding: again the cylinder sleeve after cast molding is carried out demoulding process;
(5) spray treatment: the foundry goods after membrane carries out surface spraying process;
(6) cut mechanically.
Wherein, in described step (1), pig iron composition percentage composition is prepared burden: the pig iron: 30%, scrap steel 10%, waste iron filing 50%; Additive component percentage composition C:3.6% in described step (1), Si:1.8%, Mn:0.7%, P:0.15%, S:0.06%, Cr:0.15%, nucleating agent: 0.9%; Sampling chemical examination when smelting temperature reaches 1300 DEG C in described step (2), then according to chemical composition analysis result adjustment molten iron composition, when smelting temperature reaches 1555 DEG C, soaking time controls at 3min; Cast in casting ladle in described step (3) and breed, pouring temperature is 1350 DEG C, and casting rate is 3kg/s; In described step (5), the coating composition of spray treatment is sodium bentonite 50 parts, food filter aid 100 parts, silica powder 100 parts, 0.5 part, washing powder, 580 parts, water.
| The energy of resistance to temperature change | Corrosion resistance nature | Hardness | |
| Embodiment 1 | 80% | 90% | 70% |
| Embodiment 2 | 95% | 99% | 85% |
| Embodiment 3 | 85% | 93% | 76% |
| Existing technical parameter | 75% | 82% | 60% |
According to above table data; cylinder sleeve manufacturing process of the present invention and existing technical parameter is adopted to compare; there is the energy of resistance to temperature change of higher interior surface of cylinder liner, corrosion resistance nature and hardness in example 2; and there is good metalluster; conservation of nature environment, simultaneously by the good economic benefit of generation and environmental benefit.
The invention provides a kind of cylinder sleeve manufacturing process, relate to cylinder sleeve manufacturing technology field, comprise batching, melting, casting, the demoulding, spray treatment and cut mechanically, prepare burden according to the pig iron and additive certain proportion, the mass ratio of the pig iron and additive is 85-90:15-10, batching will be prepared put in large-scale intermediate frequency furnace and carry out melting, molten iron after melting is injected in casting ladle casts, again the cylinder sleeve after cast molding is carried out demoulding process, foundry goods after membrane carries out surface spraying process, finally, then carry out cut mechanically.Present invention process flow process is rigorous, and the quality product of processing is higher, the energy of resistance to temperature change of interior surface of cylinder liner and well anticorrosion, and has good metalluster, conservation of nature environment, will produce good economic benefit and environmental benefit simultaneously.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification sheets of the present invention to do equivalent structure or the conversion of equivalent flow process, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. a cylinder sleeve manufacturing process, is characterized in that, comprises batching, melting, casting, the demoulding, cleaning mold, spray treatment and cut mechanically, and cylinder sleeve manufacturing process is as follows:
(1) prepare burden: prepare burden according to the pig iron and additive certain proportion, the mass ratio of the pig iron and additive is 85-90:10-15;
(2) melting: batching will be prepared and put in large-scale intermediate frequency furnace and carry out melting;
(3) cast: the molten iron after melting is injected in casting ladle casts;
(4) demoulding: again the cylinder sleeve after cast molding is carried out demoulding process;
(5) spray treatment: the foundry goods after membrane carries out surface spraying process;
(6) cut mechanically.
2. cylinder sleeve manufacturing process according to claim 1, is characterized in that, in described step (1), pig iron composition percentage composition is prepared burden: the pig iron: 20-30%, scrap steel 10-20%, waste iron filing 30-50%.
3. cylinder sleeve manufacturing process according to claim 1 and 2, is characterized in that, additive component percentage composition C:3.4-3.6% in described step (1), Si:1.6-1.8%, Mn:0.5-0.7%, P:0.05-0.15%, S:0.04-0.06%, Cr:0.05-0.15%, nucleating agent: 0.9%.
4. cylinder sleeve manufacturing process according to claim 1, it is characterized in that, sampling chemical examination when smelting temperature reaches 1200-1300 DEG C in described step (2), then according to chemical composition analysis result adjustment molten iron composition, when smelting temperature reaches 1550 ± 5 DEG C, soaking time controls at 2-3min.
5. cylinder sleeve manufacturing process according to claim 1, is characterized in that, cast in casting ladle in described step (3) and breed, pouring temperature is 1320-1350 DEG C, and casting rate is 2-3kg/s.
6. cylinder sleeve manufacturing process according to claim 1, it is characterized in that, in described step (5), the coating composition of spray treatment is sodium bentonite 40-50 part, food filter aid 90-100 part, silica powder 90-100 part, washing powder 0.3-0.5 part, water 550-580 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922057.1A CN105296839A (en) | 2015-12-14 | 2015-12-14 | Cylinder sleeve manufacturing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922057.1A CN105296839A (en) | 2015-12-14 | 2015-12-14 | Cylinder sleeve manufacturing process |
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| CN105296839A true CN105296839A (en) | 2016-02-03 |
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| CN201510922057.1A Pending CN105296839A (en) | 2015-12-14 | 2015-12-14 | Cylinder sleeve manufacturing process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267851A (en) * | 2017-06-20 | 2017-10-20 | 合肥尚涵装饰工程有限公司 | A kind of manufacturing process of bearing insert |
| CN111852681A (en) * | 2020-07-28 | 2020-10-30 | 中原内配集团安徽有限责任公司 | Low-density burr cylinder jacket |
Citations (5)
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|---|---|---|---|---|
| JP2008195993A (en) * | 2007-02-09 | 2008-08-28 | Kimura Chuzosho:Kk | Flake graphite cast iron material having excellent weldability |
| CN101381838A (en) * | 2008-10-17 | 2009-03-11 | 河南省中原内配股份有限公司 | Vermicular cast iron cylinder liner and preparation method thereof |
| CN104561763A (en) * | 2015-01-13 | 2015-04-29 | 安庆帝伯格茨缸套有限公司 | Method for producing air cylinder sleeve with silicon based material hardened layer |
| CN104595050A (en) * | 2014-12-30 | 2015-05-06 | 河南省中原内配股份有限公司 | Light-weight engine cylinder sleeve of passenger vehicle and production method of light-weight engine cylinder sleeve |
| CN104741563A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Centrifugal casting process of high-performance engine alloy cylinder sleeve |
-
2015
- 2015-12-14 CN CN201510922057.1A patent/CN105296839A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008195993A (en) * | 2007-02-09 | 2008-08-28 | Kimura Chuzosho:Kk | Flake graphite cast iron material having excellent weldability |
| CN101381838A (en) * | 2008-10-17 | 2009-03-11 | 河南省中原内配股份有限公司 | Vermicular cast iron cylinder liner and preparation method thereof |
| CN104741563A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Centrifugal casting process of high-performance engine alloy cylinder sleeve |
| CN104595050A (en) * | 2014-12-30 | 2015-05-06 | 河南省中原内配股份有限公司 | Light-weight engine cylinder sleeve of passenger vehicle and production method of light-weight engine cylinder sleeve |
| CN104561763A (en) * | 2015-01-13 | 2015-04-29 | 安庆帝伯格茨缸套有限公司 | Method for producing air cylinder sleeve with silicon based material hardened layer |
Non-Patent Citations (1)
| Title |
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| 李远才 等: "《铸造造型材料实用手册 第2版》", 30 June 2015 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267851A (en) * | 2017-06-20 | 2017-10-20 | 合肥尚涵装饰工程有限公司 | A kind of manufacturing process of bearing insert |
| CN111852681A (en) * | 2020-07-28 | 2020-10-30 | 中原内配集团安徽有限责任公司 | Low-density burr cylinder jacket |
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Application publication date: 20160203 |