CN104120350B - High performance alloys steel and manufacture method thereof - Google Patents
High performance alloys steel and manufacture method thereof Download PDFInfo
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- CN104120350B CN104120350B CN201410314610.9A CN201410314610A CN104120350B CN 104120350 B CN104120350 B CN 104120350B CN 201410314610 A CN201410314610 A CN 201410314610A CN 104120350 B CN104120350 B CN 104120350B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of high performance alloys steel, it is characterized in that: by following component and weight ratio formulated, iron: carbon: manganese: molybdenum: silicon: titanium: nickel: phosphorus: sulphur: copper=93.12 – 96.92:? 0.10 – 0.30:1.80 – 3.20:0.20 – 0.45:0.90 – 2.30:0.03 – 0.30:0.05 – 0.25:0 – 0.03:0 –? 0.03:0.01 – 0.02.Does is high performance alloys product made from steel performance of the present invention: tensile strength Rm>=1350MPa, yield strength Rel>=1050? MPa, elongation A(%)>=10, relative reduction in area Z(%)>=50, room temperature (42 DEG C) impelling strength aku>=100J/cm
2, low temperature (-40 DEG C) impelling strength aku>=50J/cm
2, hardness HRC40-50, product of the present invention detects through national ferrous materials test center, and the indices such as non-metallic inclusion, grain fineness number all meets national standard high grade requirements.
Description
Technical field
The present invention relates to metallurgical technology field, especially a kind of high performance alloys steel and manufacture method thereof.
Background technology
Metallic substance is the base mateiral of modern mechanical manufacturing industry, because it has good use properties and processing performance, is therefore widely used in and manufactures various production unit, instrument, weapon and daily life tools.Steel alloy is more much higher than common metal in intensity and toughness, is usually used in manufacturing the part born under heavy lift and shock action condition.Although at present the kind of steel alloy is more, possess simultaneously high strength, high tenacity, high rigidity alloy steel products less, and require high to production unit, production technique and complicated condition, production cost is high.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of be applicable to being manufactured on heavily stressed and HI high impact working condition under be on active service component, possess high strength, high tenacity, the high performance alloys steel of high rigidity and production method thereof simultaneously.Object of the present invention is realized by following technical proposals: high performance alloys steel by following component and weight ratio formulated; Iron: carbon: manganese: molybdenum: silicon: titanium: nickel: phosphorus: sulphur: copper=93.12 – 96.92:0.10 – 0.30:1.80 – 3.20:0.20 – 0.45:0.90 – 2.30:0.03 – 0.30:0.05 – 0.25:0 – 0.03:0 – 0.03:0.01 – 0.02.
High performance alloys steel production method is pressed step and is carried out:
1, in ladle refining furnace, add high-quality steel scrap, melting of heating, liquid steel temperature controls at 1650-1670 DEG C;
2, with spectrum analyzer, molten steel composition is detected, alloy ingredient in adjustment molten steel, controlling each alloy compositions scope is iron: carbon: manganese: molybdenum: silicon: titanium: nickel: phosphorus: sulphur: copper=93.12 – 96.92:0.10 – 0.30:1.80 – 3.20:0.20 – 0.45:0.90 – 2.30:0.03 – 0.30:0.05 – 0.25:0 – 0.03:0 – 0.03:0 – 0.02
3, vacuum outgas, adopts vacuum oven vacuum outgas after 15-17 minute, detects molten steel, supplements associated alloys composition and makes it in the ratio range of step 2, then continue degassed 23-24 minute;
4, cast, after coming out of the stove, liquid steel temperature is cast into steel ingot at 1660 ± 10 DEG C;
5, forge, steel ingot carries out many hammer time flat-die forgings after cutting on 800T pressing machine, forging through dimensional inspection and UT (Ultrasonic Testing) for subsequent use after the assay was approved;
6, thermal treatment, the forging be up to the standards is incubated 2.5 hours in furnace temperature 860-900 DEG C of box-type furnace, forging is put down in quenchant mixing solutions and is quenched, said quenchant mixing solutions is polyvinyl alcohol 10%, trolamine 1%, Sodium Nitrite 1%, Sodium Benzoate 0.4%, sulfonated castor oil 0.02%, water 87.58% mixed solution.After quenching, 460-500 DEG C of box-type furnace insulation tempering in 24 hours put into by forging, cools under putting natural temperature after tempering completes.Normally can use after mechanical properties test is qualified and manufacture corresponding component.
The present invention is low-carbon steel material, and welding property is good, having when high performance material demand and using this material, can well coordinate other common irons to use when only having key position, greatly can reduce costs while raising mechanism part overall performance.Add trace element and copper raw material in the present invention, optimize alloy structure, improve shock resistance and wearability, make material have lower low-temperature brittle fracture and delayed fracture property, lower notch sensitivity.It has excellent shock resistance and abrasion resistance properties, both can anti-cutting abrasion, can antistripping lose efficacy again.High performance alloys product made from steel performance of the present invention is: tensile strength Rm>=1350MPa, yield strength Rel>=1050MPa, elongation A(%)>=10, relative reduction in area Z(%)>=50, room temperature (42 DEG C) impelling strength aku>=100J/cm
2, low temperature (-40 DEG C) impelling strength aku>=50J/cm
2, hardness HRC40-50, product of the present invention detects through national ferrous materials test center, and the indices such as non-metallic inclusion, grain fineness number all meets national standard high grade requirements.The steel alloy compound wing rail steel alloy heart rail assembled frog utilizing the present invention to manufacture (report number: 201136000J010121) retrieval conclusion in sci-tech novelty-search describes to be had " steel alloy that this project adopts is a kind of novel low carbon steel alloy; its main Mechanical index increases than existing common Ao-Bei steel alloy, high mangaenese steel ", steel alloy compound wing rail steel alloy heart rail assembled frog is once up to the standards through Ministry of Railways's product quality supervision and inspection center, in the end of the year 2011 by Ministry of Railways's alloy steel combination frog technological audit.Rely on the Shi Wujia of the Iron-surfur clusters of manufacture of the present invention in 18 Railway Bureaus in the whole nation to use nearly 3 years in batches, service condition is good.
Embodiment
Embodiment 1: a kind of high performance alloys steel, by following component and weight ratio formulated; Iron: carbon: manganese: molybdenum: silicon: titanium: nickel: phosphorus: sulphur: copper=93.12:0.20:2.3:0.20:1.80:0.03:0.05:0.03:0.01:0.02.
High performance alloys steel production method is pressed step and is carried out:
1, in ladle refining furnace, add high-quality steel scrap, melting of heating, liquid steel temperature controls at 1650-1670 DEG C;
2, detect molten steel composition with spectrum analyzer, alloy ingredient in adjustment molten steel, controlling each alloy compositions is iron: carbon: manganese: molybdenum: silicon: titanium: nickel: phosphorus: sulphur: copper=93.12:0.20:2.3:0.20:1.80:0.03:0.05:0.03:0.01:0.02;
3, vacuum outgas, Bian, detects molten steel after 15-17 minute with vacuum oven vacuum outgas, supplements associated alloys composition and makes it the proportioning reaching step 2, then continue degassed 23-24 minute;
4, cast, after coming out of the stove, liquid steel temperature is cast into steel ingot at 1660 ± 10 DEG C;
5, forge, steel ingot carries out three hammers time flat-die forging after cutting on 800T pressing machine, forging through dimensional inspection and UT (Ultrasonic Testing) for subsequent use after the assay was approved;
6, thermal treatment, the forging be up to the standards is incubated 2.5 hours in furnace temperature 900 DEG C of box-type furnaces, forging is put down in quenchant mixing solutions and is quenched, said quenchant mixing solutions is polyvinyl alcohol 10%, trolamine 1%, Sodium Nitrite 1%, Sodium Benzoate 0.4%, sulfonated castor oil 0.02%, water 87.58% mixed solution.After quenching, 460 DEG C of box-type furnace insulations tempering in 24 hours put into by forging, cools under putting natural temperature after tempering completes.Normally can use after mechanical properties test is qualified and manufacture corresponding component.
Embodiment 2: a kind of high performance alloys steel, by following component and weight ratio formulated; Iron: carbon: manganese: molybdenum: silicon: titanium: nickel: phosphorus: sulphur: copper=95.10:0.30:3.20:0.45:0.90:0.21:0.25:0:0.03:0.015.
High performance alloys steel production method is pressed step and is carried out:
1, in ladle refining furnace, add high-quality steel scrap, melting of heating, liquid steel temperature controls at 1650-1670 DEG C;
2, with spectrum analyzer, molten steel composition is detected, alloy ingredient in adjustment molten steel, controlling each alloy compositions scope is iron: carbon: manganese: molybdenum: silicon: titanium: nickel: phosphorus: sulphur: copper=95.10:0.30:3.20:0.45:0.90:0.21:0.25:0:0.03:0.015;
3, vacuum outgas, adopts vacuum oven vacuum outgas after 15-17 minute, detects molten steel, supplements associated alloys composition and makes it the proportioning reaching step 2, then continue degassed 23-24 minute;
4, cast, after coming out of the stove, liquid steel temperature is cast into steel ingot at 1660 ± 10 DEG C;
5, forge, steel ingot carries out three hammers time flat-die forging after cutting on 800T pressing machine, forging through dimensional inspection and UT (Ultrasonic Testing) for subsequent use after the assay was approved;
6, thermal treatment, the forging be up to the standards is incubated 2.5 hours in furnace temperature 860 DEG C of box-type furnaces, forging is put down in quenchant mixing solutions and is quenched, said quenchant mixing solutions is polyvinyl alcohol 10%, trolamine 1%, Sodium Nitrite 1%, Sodium Benzoate 0.4%, sulfonated castor oil 0.02%, water 87.58% mixed solution.After quenching, 500 DEG C of box-type furnace insulations tempering in 24 hours put into by forging, cools under putting natural temperature after tempering completes.Normally can use after mechanical properties test is qualified and manufacture corresponding component.
Embodiment 3: a kind of high performance alloys steel, by following component and weight ratio formulated; Iron: carbon: manganese: molybdenum: silicon: titanium: nickel: phosphorus: sulphur: copper=96.92:0.10:1.8:0.30:2.30:0.30:0.20:0.03:0.01:0.01.
High performance alloys steel production method is pressed step and is carried out:
1, in ladle refining furnace, add high-quality steel scrap, melting of heating, liquid steel temperature controls at 1650-1670 DEG C;
2, detect molten steel composition with spectrum analyzer, alloy ingredient in adjustment molten steel, controlling each alloy compositions is iron: carbon: manganese: molybdenum: silicon: titanium: nickel: phosphorus: sulphur: copper=96.92:0.10:1.8:0.30:2.30:0.30:0.20:0.03:0.01:0.01;
3, vacuum outgas, adopts vacuum oven vacuum outgas after 15-17 minute, detects molten steel, supplements associated alloys composition and makes it the proportioning reaching step 2, then continue degassed 23-24 minute;
4, cast, after coming out of the stove, liquid steel temperature is cast into steel ingot at 1660 ± 10 DEG C;
5, forge, steel ingot carries out three hammers time flat-die forging after cutting on 800T pressing machine, forging through dimensional inspection and UT (Ultrasonic Testing) for subsequent use after the assay was approved;
6, thermal treatment, the forging be up to the standards is incubated 2.5 hours in furnace temperature 800 DEG C of box-type furnaces, forging is put down in quenchant mixing solutions and is quenched, said quenchant mixing solutions is polyvinyl alcohol 10%, trolamine 1%, Sodium Nitrite 1%, Sodium Benzoate 0.4%, sulfonated castor oil 0.02%, water 87.58% mixed solution.After quenching, 480 DEG C of box-type furnace insulations tempering in 24 hours put into by forging, cools under putting natural temperature after tempering completes.Normally can use after mechanical properties test is qualified and manufacture corresponding component.
Claims (1)
1. a production method for high performance alloys steel, is characterized in that, presses step and carries out:
(1) in ladle refining furnace, add high-quality steel scrap, melting of heating, liquid steel temperature controls at 1650-1670 DEG C;
(2) with spectrum analyzer, molten steel composition is detected, alloy ingredient in adjustment molten steel, controlling each alloy compositions scope is iron: carbon: manganese: molybdenum: silicon: titanium: nickel: phosphorus: sulphur: copper=93.12 – 96.92:0.10 – 0.30:1.80 – 3.20:0.20 – 0.45:0.90 – 2.30:0.03 – 0.30:0.05 – 0.25:0 – 0.03:0 – 0.03:0 – 0.02;
(3) vacuum outgas, adopts vacuum oven vacuum outgas after 15-17 minute, detects molten steel, supplements associated alloys composition and makes it in the ratio range of step 2, then continue degassed 23-24 minute;
(4) cast, after coming out of the stove, liquid steel temperature is cast into steel ingot at 1660 ± 10 DEG C;
(5) forge, steel ingot carries out many hammer time flat-die forgings after cutting on 800T pressing machine, forging through dimensional inspection and UT (Ultrasonic Testing) for subsequent use after the assay was approved;
(6) thermal treatment, the forging be up to the standards is incubated 2.5 hours in furnace temperature 860-900 DEG C of box-type furnace, forging is put down in quenchant mixing solutions and is quenched, and said quenchant mixing solutions is polyvinyl alcohol 10%, trolamine 1%, Sodium Nitrite 1%, Sodium Benzoate 0.4%, sulfonated castor oil 0.02%, water 87.58% mixed solution, after quenching, 460-500 DEG C of box-type furnace insulation tempering in 24 hours put into by forging, cools under putting natural temperature after tempering completes.
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| CN106435347A (en) * | 2016-10-24 | 2017-02-22 | 马鞍山顺发机械制造有限公司 | Automobile brake foundry technology |
| CN106884121A (en) * | 2016-12-29 | 2017-06-23 | 广州凯耀资产管理有限公司 | A kind of high performance steel and its preparation technology |
| CN108660287A (en) * | 2018-07-02 | 2018-10-16 | 邯郸钢铁集团有限责任公司 | A kind of LF stoves steel scrap adding set and adding method |
| CN109082602A (en) * | 2018-09-17 | 2018-12-25 | 四川易亨机械制造有限公司 | A kind of steel alloy of excellent combination property and preparation method thereof |
| CN109023096A (en) * | 2018-09-17 | 2018-12-18 | 四川易亨机械制造有限公司 | A kind of high performance low-alloy steel and preparation method thereof for pitching the heart for manufacturing railway |
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| CN102409138A (en) * | 2011-10-31 | 2012-04-11 | 芜湖山桥铁路器材有限公司 | Process for manufacturing alloy steel for rail frog |
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| JP2000312987A (en) * | 1999-04-28 | 2000-11-14 | Sumitomo Metal Ind Ltd | Welding wire |
| JP5374059B2 (en) * | 2008-03-17 | 2013-12-25 | 株式会社神戸製鋼所 | Super high strength thin steel sheet with excellent workability and corrosion resistance |
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Inventor after: Li Yinfang Inventor before: Li Yinfang Inventor before: Zheng Yuxing |
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