CN1560311A - Wear-resisting cast steel and preparation method thereof - Google Patents
Wear-resisting cast steel and preparation method thereof Download PDFInfo
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- CN1560311A CN1560311A CNA2004100186967A CN200410018696A CN1560311A CN 1560311 A CN1560311 A CN 1560311A CN A2004100186967 A CNA2004100186967 A CN A2004100186967A CN 200410018696 A CN200410018696 A CN 200410018696A CN 1560311 A CN1560311 A CN 1560311A
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Abstract
The invention relates to a wearable cast steel and its preparing method, containing C 0.2-0.35, Si 0.6-1.0, Mn 0.8-1.2, Ni 0.2-0.6, Cr 0.6-1.2, and Mo 0.15-0.35. Its preparing method includes melting, casting and heat treating. The melting: as 1/5-2/5 of steel is melted, putting in Cr, Ni and Mo, and casting in Mn and Si in 5-15 minutes before leaving the furnace, and then casting in deoxidant; the heat treating: normalizing casts at 910-930 deg.C, preserving the heat for 2 hours, leaving the furnace and cooling, quenching at 860-900 deg.C and preserving the heat for 1.5 hour, leaving the furnace and water-quenching at water temperature below 30 deg.C, tempering at 210-230 deg.C and preserving the heat for 2-2.5 hours, and leaving the furnace and cooling. The preparing method is simple and the product has strong wearability and impact ductility.
Description
Technical field
The invention belongs to the metal material processing technical field, particularly relate to a kind of wearable cast steel and preparation method thereof.
Background technology
At present, high-wearing feature and impelling strength material are starved of in actual production, life.As: the scope of work of snagboat is very extensive, and shovel dress soil, sandstone, rock, rubbish etc. are come into contacts with seawater in port construction, and operating condition is very complicated.Manipulating object has: soft, hard, lumpiness varies in size, the sharp-pointed degree difference of corner angle, do wet condition and temperature contrast, these bucket tooth is got failure mode and work-ing life all influential.Sum up failure mode and have only two kinds: wear and tear and fracture.
In quite long in the past period, high mangaenese steel dominates in bucket tooth material always.The easy brittle failure of high-manganese steel can not embody abrasive wear resistance etc. before work hardening.The complete processing complexity, the manufacturing cost height.
Summary of the invention
The present invention provides a kind of wearable cast steel and preparation method thereof for solving the problem that exists in the known technology.
The purpose of this invention is to provide a kind of abrasion-resistant cast steel material, have good hardening capacity, temper resistance, very high wear resistance and impelling strength.
Abrasion-resistant cast steel material of the present invention is taked following technical scheme:
A kind of wearable cast steel contains carbon, silicon, manganese, nickel, chromium and molybdenum element, and the weight percent of trace element is formed: C0.2-0.35, Si 0.6-1.0, Mn 0.8-1.2, Ni 0.2-0.6, Cr 0.6-1.2, Mo 0.15-0.35.
Abrasion-resistant cast steel material of the present invention can also adopt following technical measures:
Above-mentioned wearable cast steel, its micro-weight percent is formed: C 0.25-0.30, Si 0.6-0.8, Mn0.8-1.2, Ni 0.2-0.4, Cr 0.6-1.0, Mo 0.15-0.25.
Another object of the present invention provides a kind of method for preparing abrasion-resistant cast steel material, can manufacture the technological process of wearable cast steel device.
The preparation method of abrasion-resistant cast steel material of the present invention takes following technical scheme:
The preparation method of abrasion-resistant cast steel material comprises following smelting, casting and heat treatment process, and its concrete processing parameter is:
(1) smelting technology
Steelmaking feed selects carbon content at the steel scrap below 0.17, spends iron as furnace charge as low-carbon (LC), optimization degree steel.
In the molten steel smelting process, throw in alloying element and carry out when the ladle molten steel dissolves 1/5-2/5, put into chromium, nickel, molybdenum and dissolve, 5-15 minute input manganese, silicon molten steel is come out of the stove before drop into the purity of reductor purify hot metal then;
(2) thermal treatment process
Molten steel casting foundry goods is heat-treated, and heat treatment normalizing 910-930 ℃, be incubated the air cooling of coming out of the stove after 2 hours,
Quenching 860-900 ℃ of insulation shrend of coming out of the stove after 1.5 hours, the temperature of water is below 30 ℃, tempering 210-230 ℃,
Be incubated 2-2.5 hour, the air cooling of coming out of the stove.Metallographic structure is a lath-shaped, tempered martensite, and metallographic structure is the change of material
Composition and thermal treatment process decision, metallographic structure influences the mechanical property of material again.
Abrasion-resistant cast steel material of the present invention can also adopt following technical measures:
The preparation method of described wearable cast steel, its chromium is Chrome metal powder, and molybdenum is a molybdenum alloy, and manganese is manganese alloy, and silicon is silicon alloy.
The preparation method of described wearable cast steel, the weight percent of its alloy consists of, and the chromium 75-80% of Chrome metal powder, the molybdenum of molybdenum alloy are 55-65%, and the manganese 68-75% of manganese alloy, the silicon of silicon alloy are 75-80%.
The preparation method of described wearable cast steel, its reductor is a silicocalcium.
Advantage that the present invention has and positively effect:
This technological process is simple, easily-controlled operation, adopt microalloying and rotten the processing, the wearable cast steel that makes has good hardening capacity, anti-temper resistance, has high-wearing feature and impelling strength, bear harsh abrasive wear and intense impact operating condition, be suitable for performance requriementss such as snagboat bucket tooth, long service life.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and be described in detail as follows:
Embodiment 1
A kind of wearable cast steel, the weight percent of trace element consists of C 0.28, Si 0.7, Mn 0.9, Ni 0.3, Cr 0.8, Mo 0.2.
Embodiment 2
The preparation method of wearable cast steel comprises following smelting, casting and heat treatment process, and specific embodiment is:
(1) smelting technology
Choosing carbon content and be 0.16 low-carbon (LC) flower iron steel scrap 1000Kg does raw material and smelts.
In the molten steel smelting process, dissolved 1/3 o'clock at the ladle molten steel, consider burn out rate, at first put into the Chrome metal powder 14.10Kg that contains chromium 78%, nickel 4Kg contains molybdenum and is 60% molybdenum alloy 4.17Kg, fully dissolves.Come out of the stove at molten steel and to drop into the manganese alloy 22.74Kg contain manganese 70% in preceding 10 minutes, siliceous 80% silicon alloy 10.53Kg drops into 16Kg silico-calcium reductor purify hot metal then;
(2) thermal treatment process
Molten steel casting foundry goods is heat-treated, and 920 ℃ of heat treatment normalizings are incubated the air cooling of coming out of the stove after 2 hours, the 880 ℃ of insulations of the quenching shrend of coming out of the stove after 1.5 hours, and the temperature of water is 20 ℃, 220 ℃ of tempering are incubated 2 hours, the air cooling of coming out of the stove.Make patent wearable cast steel device of the present invention.
Claims (6)
1. wearable cast steel, contain carbon, silicon, manganese, nickel, chromium and molybdenum element, it is characterized in that: the weight percent of trace element consists of C 0.2-0.35, Si 0.6-1.0, Mn 0.8-1.2, Ni 0.2-0.6, Cr 0.6-1.2, Mo 0.15-0.35 in the wearable cast steel.
2. wearable cast steel according to claim 1 is characterized in that: C 0.25-0.30, Si 0.6-0.8, Mn 0.8-1.2, Ni 0.2-0.4, Cr 0.6-1.0, Mo 0.15-0.25.
3. according to the preparation method of the described wearable cast steel of claim 1, comprise following smelting, casting and heat treatment process, it is characterized in that:
(1) smelting technology
In the molten steel smelting process, when the ladle molten steel dissolves 1/5-2/5, put into chromium, nickel, molybdenum and dissolve, before molten steel is come out of the stove, dropped into manganese, silicon in 5-15 minute, drop into the reductor purify hot metal then;
(2) thermal treatment process
Molten steel casting foundry goods is heat-treated, and heat treatment normalizing 910-930 ℃, be incubated the air cooling of coming out of the stove after 2 hours, quenching 860-900 ℃ of insulation shrend of coming out of the stove after 1.5 hours, the temperature of water is below 30 ℃, tempering 210-230 ℃, is incubated 2-2.5 hour, the air cooling of coming out of the stove.
4. according to the preparation method of the described wearable cast steel of claim 3, it is characterized in that: chromium is Chrome metal powder, and molybdenum is a molybdenum alloy, and manganese is manganese alloy, and silicon is silicon alloy.
5. according to the preparation method of the described wearable cast steel of claim 4, it is characterized in that: the weight percent of alloy consists of, and the chromium 75-80% of Chrome metal powder, the molybdenum of molybdenum alloy are 55-65%, and the manganese 68-75% of manganese alloy, the silicon of silicon alloy are 75-80%.
6. according to the preparation method of the described wearable cast steel of claim 3, it is characterized in that: reductor is a silicocalcium.
Priority Applications (1)
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| CNA2004100186967A CN1560311A (en) | 2004-02-27 | 2004-02-27 | Wear-resisting cast steel and preparation method thereof |
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| CNA2004100186967A CN1560311A (en) | 2004-02-27 | 2004-02-27 | Wear-resisting cast steel and preparation method thereof |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359036C (en) * | 2004-06-07 | 2008-01-02 | 河南石油勘探局南阳石油机械厂 | Cast steel for bearing parts in mechanical lifting system and its making process |
| CN100453682C (en) * | 2005-04-01 | 2009-01-21 | 攀枝花市白云铸造有限责任公司 | Wear-resistant hammer head and its manufacturing process |
| CN101857940A (en) * | 2010-06-23 | 2010-10-13 | 抚顺泰平铸造有限公司 | ZG35MnMo steel ball |
| CN101864545A (en) * | 2010-06-30 | 2010-10-20 | 浙江红马铸造有限公司 | Abrasion-resistant steel |
| CN101962739A (en) * | 2010-11-15 | 2011-02-02 | 广东省韶铸集团有限公司 | Cast steel material suitable for high-pressure resistant cylinder body and manufacturing method thereof |
| CN102260779A (en) * | 2011-07-20 | 2011-11-30 | 武汉钢铁(集团)公司 | Quenching method for 20CrNiMo material drill bit |
| CN102277535A (en) * | 2011-08-12 | 2011-12-14 | 宁波万冠熔模铸造有限公司 | Ridger tooth alloy material and preparation method thereof |
| CN101899552B (en) * | 2009-05-26 | 2012-01-18 | 宁波市鄞州商业精密铸造有限公司 | Heat treatment equipment of antifriction alloy cast steel |
| CN101899553B (en) * | 2009-05-26 | 2012-01-18 | 宁波市鄞州商业精密铸造有限公司 | Heat treatment technology and device of wear-resistant alloy cast steel |
| CN102433506A (en) * | 2011-12-19 | 2012-05-02 | 张家港市鼎力铸钢有限公司 | High strength wear resistant cast steel free from molybdenum and nickel |
| CN101899626B (en) * | 2009-05-26 | 2012-05-23 | 宁波市鄞州商业精密铸造有限公司 | Wear-resistant alloy cast steel |
| CN102051455B (en) * | 2009-11-04 | 2012-07-04 | 宁波市鄞州商业精密铸造有限公司 | Heat-treatment process for low-temperature abrasion-resistant alloy cast steel |
| CN102605272A (en) * | 2012-03-31 | 2012-07-25 | 三一集团有限公司 | Low-alloy ultrahigh-strength wear-resistant steel and production method thereof |
| CN102808133A (en) * | 2011-05-31 | 2012-12-05 | 新东工业株式会社 | Abrasion-resistant low alloy cast steel |
| CN101988173B (en) * | 2009-07-30 | 2013-01-23 | 郑州四维机电设备制造有限公司 | Cast steel material and preparation method thereof |
| CN102051528B (en) * | 2009-11-04 | 2013-02-13 | 宁波市鄞州商业精密铸造有限公司 | Abrasion resistant alloy cast steel product |
| CN102978537A (en) * | 2012-12-10 | 2013-03-20 | 张家港市鼎力铸钢有限公司 | Wear-resistant cast steel |
| CN103014521A (en) * | 2012-12-27 | 2013-04-03 | 四川优机实业股份有限公司 | High-hardness high-toughness wear-resistant steel and production method thereof |
| CN103184390A (en) * | 2013-04-09 | 2013-07-03 | 扬州通盈机械制造有限公司 | High-strength metallic alloy and corner fitting made from same |
| CN103228807A (en) * | 2010-11-30 | 2013-07-31 | 钴碳化钨硬质合金公司 | Abrasion resistant steel, method of manufacturing the abrasion resistant steel and articles made therefrom |
| CN103589965A (en) * | 2013-11-08 | 2014-02-19 | 中国重汽集团济南动力有限公司 | Low-alloy high-strength cast steel and preparation method thereof |
| CN108588549A (en) * | 2017-12-28 | 2018-09-28 | 天津威尔朗科技有限公司 | A kind of drag conveyor high abrasion ledge and its manufacturing method |
| CN109487048A (en) * | 2019-01-11 | 2019-03-19 | 徐州徐工矿业机械有限公司 | A kind of bearing of ultra-large type mining equiment cast steel material and preparation method |
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| CN114277320A (en) * | 2021-12-28 | 2022-04-05 | 内蒙古科技大学 | High-strength and high-wear-resistance tooth tip steel for bucket shovel and preparation method thereof |
| CN114381666A (en) * | 2021-12-24 | 2022-04-22 | 鞍钢集团矿业有限公司 | High-carbon high-chromium cast steel for ball mill cylinder liner and heat treatment method thereof |
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-
2004
- 2004-02-27 CN CNA2004100186967A patent/CN1560311A/en active Pending
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| CN100359036C (en) * | 2004-06-07 | 2008-01-02 | 河南石油勘探局南阳石油机械厂 | Cast steel for bearing parts in mechanical lifting system and its making process |
| CN100453682C (en) * | 2005-04-01 | 2009-01-21 | 攀枝花市白云铸造有限责任公司 | Wear-resistant hammer head and its manufacturing process |
| CN101899552B (en) * | 2009-05-26 | 2012-01-18 | 宁波市鄞州商业精密铸造有限公司 | Heat treatment equipment of antifriction alloy cast steel |
| CN101899626B (en) * | 2009-05-26 | 2012-05-23 | 宁波市鄞州商业精密铸造有限公司 | Wear-resistant alloy cast steel |
| CN101899553B (en) * | 2009-05-26 | 2012-01-18 | 宁波市鄞州商业精密铸造有限公司 | Heat treatment technology and device of wear-resistant alloy cast steel |
| CN101988173B (en) * | 2009-07-30 | 2013-01-23 | 郑州四维机电设备制造有限公司 | Cast steel material and preparation method thereof |
| CN102051455B (en) * | 2009-11-04 | 2012-07-04 | 宁波市鄞州商业精密铸造有限公司 | Heat-treatment process for low-temperature abrasion-resistant alloy cast steel |
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| CN101864545A (en) * | 2010-06-30 | 2010-10-20 | 浙江红马铸造有限公司 | Abrasion-resistant steel |
| CN101962739A (en) * | 2010-11-15 | 2011-02-02 | 广东省韶铸集团有限公司 | Cast steel material suitable for high-pressure resistant cylinder body and manufacturing method thereof |
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| CN103228807B (en) * | 2010-11-30 | 2015-07-15 | 钴碳化钨硬质合金公司 | Abrasion resistant steel, method of manufacturing the abrasion resistant steel and articles made therefrom |
| CN102808133B (en) * | 2011-05-31 | 2017-04-26 | 新东工业株式会社 | abrasion-resistant low alloy cast steel |
| CN102808133A (en) * | 2011-05-31 | 2012-12-05 | 新东工业株式会社 | Abrasion-resistant low alloy cast steel |
| CN102260779A (en) * | 2011-07-20 | 2011-11-30 | 武汉钢铁(集团)公司 | Quenching method for 20CrNiMo material drill bit |
| CN102277535B (en) * | 2011-08-12 | 2013-06-05 | 宁波万冠精密铸造厂 | Ridger tooth alloy material and preparation method thereof |
| CN102277535A (en) * | 2011-08-12 | 2011-12-14 | 宁波万冠熔模铸造有限公司 | Ridger tooth alloy material and preparation method thereof |
| CN102433506A (en) * | 2011-12-19 | 2012-05-02 | 张家港市鼎力铸钢有限公司 | High strength wear resistant cast steel free from molybdenum and nickel |
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| CN102978537A (en) * | 2012-12-10 | 2013-03-20 | 张家港市鼎力铸钢有限公司 | Wear-resistant cast steel |
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| CN103184390A (en) * | 2013-04-09 | 2013-07-03 | 扬州通盈机械制造有限公司 | High-strength metallic alloy and corner fitting made from same |
| CN103589965B (en) * | 2013-11-08 | 2016-02-10 | 中国重汽集团济南动力有限公司 | A kind of Low-alloy high-strength cast steel and preparation method thereof |
| CN103589965A (en) * | 2013-11-08 | 2014-02-19 | 中国重汽集团济南动力有限公司 | Low-alloy high-strength cast steel and preparation method thereof |
| CN108588549A (en) * | 2017-12-28 | 2018-09-28 | 天津威尔朗科技有限公司 | A kind of drag conveyor high abrasion ledge and its manufacturing method |
| CN109487048A (en) * | 2019-01-11 | 2019-03-19 | 徐州徐工矿业机械有限公司 | A kind of bearing of ultra-large type mining equiment cast steel material and preparation method |
| CN110468339A (en) * | 2019-09-26 | 2019-11-19 | 郑州机械研究所有限公司 | A kind of low temperature high-strength gear box body material and preparation method thereof |
| CN115198170A (en) * | 2021-04-10 | 2022-10-18 | 山西中盈万维耐磨材料有限公司 | High-strength wear-resistant alloy cast steel and manufacturing method thereof |
| CN114381666A (en) * | 2021-12-24 | 2022-04-22 | 鞍钢集团矿业有限公司 | High-carbon high-chromium cast steel for ball mill cylinder liner and heat treatment method thereof |
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