CN100436633C - Low carbon high alloy steel for ball mill lining and its making process - Google Patents
Low carbon high alloy steel for ball mill lining and its making process Download PDFInfo
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- CN100436633C CN100436633C CNB2006100966987A CN200610096698A CN100436633C CN 100436633 C CN100436633 C CN 100436633C CN B2006100966987 A CNB2006100966987 A CN B2006100966987A CN 200610096698 A CN200610096698 A CN 200610096698A CN 100436633 C CN100436633 C CN 100436633C
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Abstract
The present invention is low carbon high alloy steel for ball mill lining and its making process, and the features that the lining steel has the composition of C 0.15-0.30 wt%, Cr 5.0-10.0 wt%, Ni 0-1.5 wt%, Mn 0.5-1.7 wt%, Mo 0-1.5 wt%, RE 0-0.8 wt%, Ti 0-1.0 wt%, Si 0-1.6 wt%, P 0.01-0.045 wt%, S 0.01-0.045 wt%, other metal and non-metal elements not more than 3 wt% and Fe for the rest. The lining of the low carbon high alloy steel has excellent wear resistance in the wet ore grinder environment, service life as long as twice that of lining of high manganese steel, and low cost.
Description
Technical field
The present invention relates to alloy lining steel and manufacture method thereof, more particularly, alloy lining steel and the manufacture method thereof especially on the wet-type ball mill liner plate, used.
Background technology
30 years of development have been passed through in the production and the application of external lining material, have successively experienced the developmental stage from high mangaenese steel, ordinary white cast iron, ni-hard cast iron, high-chromium white cast iron to the middle-low alloy steel of modified high manganese steel and various Q-tempering technologies.In the domestic practical application, still be that high mangaenese steel rules all the land, do not replaced that this is determined by the problem that exists on quality own, stability and the technologies such as middle-low alloy steel by high alloy iron, middle dilute-alloy martensite steel.In present several main flow materials, high mangaenese steel toughness is had a surplus, and wear resistance, solidity to corrosion are all not enough; Rich chromium cast iron is wear-resisting, but poor toughness; Middle-low alloy steel fragility and solidity to corrosion are all very poor, so the comprehensive Corrosive Impact Wear performance of these materials and bad.
Summary of the invention
The present invention hits the deficiency that corrosion wear characteristic is relatively poor, work-ing life is lower for fear of liner plates such as existing high mangaenese steel and middle-low alloy steels with steel drift, a kind of Heavy-alloyed ball mill lining board steel of low carbon and its preparation method is provided, this steel not only has good Corrosive Impact Wear performance, and cost is lower.
The technical scheme that technical solution problem of the present invention is adopted is:
Low carbon high alloy steel for ball mill lining of the present invention is characterized in that described liner plate steel alloying constituent by weight percentage is:
C：0.15～0.30％、Cr：5.0～10.0％、Ni：0.5～1.0％、
Mn：1.5～1.7％、 Mo：0～1.5％、 RE：0～0.8％、
Ti：0～1.0％、 Si：0～1.6％、 P：0.01～0.045％、
S0.01～0.045%; Other metals and non-metallic element total amount are no more than 3%;
Surplus is Fe.
The characteristics of the manufacture method of steel for ball mill lining of the present invention are that all the components is through batching, common melting, cast molding and thermal treatment;
The smelting temperature of described melting is 1550～1650 ℃;
The pouring temperature of described cast molding is 1400～1500 ℃, casting mold preheating between 200～500 ℃ before the casting, and ingot casting at first is incubated 2-10 hour and carries out homogenizing annealing under 900～950 ℃ of temperature;
Described thermal treatment is that quenching and tempering is handled; The quenching and tempering treatment process is: preheating is 0.5～2 hour under 450～650 ℃ temperature, and quench treatment behind reheat to 950～1050 ℃ with 200～300 ℃ temperature tempering 1～3 hour, is promptly finished subsequently.
The design considerations of the inventive method is:
C:C is one of constituent element in the steel.The control of C amount is intensity, hardness, toughness, the corrosion proof cooperation in order to guarantee that alloy obtains on the one hand in the liner plate of the present invention.Carbon content is on the low side, and the toughness of material will be improved, but wear resistance can be not enough; Carbon content is too high, and the hardness of material, wear resistance can be improved, but toughness can descend.
Cr: chromium is the hardening capacity that improves steel, the important element that steel is strengthened, and also is simultaneously the corrosion proof important element that improves steel.In the abrasion-proof backing block material in the past, except that the rich chromium cast iron chrome content was higher, chrome content was lower than 5% more in the general material.It is between the 5-10% that liner plate of the present invention is selected chromium content.Because chrome content on the low side is unfavorable to the erosion resistance of material; And higher chromium content is unfavorable to toughness.The selection of chrome content also will take into account the rational Match of chromium amount and carbon amount in addition.
Mn, Si: solution strengthening is arranged, improve the hardening capacity effect, but Mn easily makes grain coarsening, amount is unsuitable too many, should be no more than 1.7%.
Ni: add solidity to corrosion, toughness and hardening capacity that nickel element can improve steel, under multi-element alloyed condition, element actings in conjunction such as nickel and Cr, Mo, obvious to corrosion proof raising effect.And wet-type ball mill liner plate working condition requires lining material that sufficiently high solidity to corrosion, toughness, hardening capacity should be arranged.But owing to costing an arm and a leg of Ni, in order to control cost of alloy, add-on is no more than 1.5%.
Mo: add a small amount of Mo element and can improve alloy hardening capacity.Simultaneously, Mo helps eliminating the anti intercrystalline corrosion ability of temper brittleness and raising alloy.In order to control cost of alloy, add-on is no more than 1.5%.
RE and Ti: add that a small amount of rare earth can purify, thinning microstructure, improve solidity to corrosion.The Ti element can hinder grain growth, plays the refining grain size effect.The add-on of RE, Ti can not be high, is controlled at respectively below 0.8% and 1.0%.
Nb, Zr, V, W: can improve alloy property, but can increase the liner plate cost, should control its add-on.
P, S and other metals and non-metallic element: P can cause hot-short, and S easily causes cold short.All as impurity, its amount needs strict control in liner plate of the present invention for other metals and non-metallic element.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, liner plate of the present invention is by alloy designs, and the final tissue that makes liner plate is based on lath martensite, and hardness is HRC 48～55, impelling strength a
KBe 50～150Jcm
-2, uniform corrosion speed is 0.1～0.5gm during pH=4
-2H
-1, under the Working environment of wet-grinding machine liner plate, having good wear resistance, its life-span is 2 times of high manganese steel lining plate.
2, main alloy element content such as Cr, Mo, Mn are not high in the liner plate of the present invention.Compare with the low carbon high alloy steel liner plate of being developed in " wet mill with the research and development of new material liner plate " that obtain Anhui Province's scientific and technical second prize in 2000, owing to ni content is low, the liner plate cost obviously reduces.
Below by embodiment the present invention is further described:
Embodiment:
Present embodiment low carbon high alloy steel for ball mill lining alloying constituent by weight percentage is: C:0.15～0.30%, Cr:5.0～10.0%, Ni:0～1.5%, Mn:0.5～1.7%, Mo:0～1.5%, RE:0～0.8%, Ti:0～1.0%, Si:0～1.6%, P:0.01～0.045%, S:0.01～0.045%; Other metals and non-metallic element total amount are no more than 3%; Surplus is Fe.
Wherein, other metals and non-metallic element comprise N, H, O, Al, Cu, Ni, Nb, Zr, V, W, Co, B, Ta, Mg, Ca, Zn, K, Y, Sn, Pb and Ba.
Present embodiment low carbon high alloy steel for ball mill lining material composition by weight percentage is exemplified below table:
| Group | C | Cr | Ni | Mn | Mo | RE | Ti | Si | Cu | Fe |
| 1 | 0.15 | 9.0 | 1.5 | 0.5 | 0.7 | 0 | 0 | 0 | 0 | Surplus |
| 2 | 0.2 | 9.0 | 0 | 1.5 | 0.7 | 0 | 0 | 0 | 0 | Surplus |
| 3 | 0.22 | 9.0 | 1.0 | 1.5 | 0.3 | 0 | 0 | 0 | 0 | Surplus |
| 4 | 0.22 | 9.0 | 1.0 | 1.5 | 0 | 0 | 0 | 0 | 0.5 | Surplus |
| 5 | 0.22 | 9.0 | 1.0 | 1.0 | 0.3 | 0.2 | 0 | 0.5 | 0 | Surplus |
| 6 | 0.20 | 9.0 | 1.0 | 1.5 | 0.3 | 0 | 0.5 | 0 | 0 | Surplus |
| 7 | 0.25 | 10.0 | 0.5 | 1.0 | 0.7 | 0.2 | 0 | 0.5 | 0 | Surplus |
| 8 | 0.30 | 5.0 | 1.0 | 1.0 | 1.5 | 0 | 0 | 0.5 | 0 | Surplus |
In the last table first group, carbon content is 0.15, has guaranteed that alloy has higher plasticity and toughness, and after being quenched, alloy is organized as lath martensite, have good strong hardness, the cooperation of plasticity and toughness like this under the alloy user mode, and be single phase structure, solidity to corrosion is preferably arranged; Cr, Ni, the multi-element alloyed solidity to corrosion that guarantees alloy of Mo, wherein, Cr, Ni can improve the hardening capacity of alloy, and Ni can improve alloy toughness, and Mo can improve the ability of alloy anti intercrystalline corrosion and reduce temper brittleness.This alloy has the ability of good shock resistance corrosive wear.
In the last table second group, than first group, the Mn amount increases by 1.0%, can improve hardness of alloy, reduce Ni and can reduce cost of alloy, but solidity to corrosion, toughness can reduce can the partial sacrifice life-span of alloy under the deep-etching condition.
In the last table the 3rd group, than second group, Ni measure increases, and 10 measure decline, and total effect can improve the solidity to corrosion of alloy, and obviously improves alloy toughness.
In the last table the 4th group than the 3rd group, replaced Mo with Cu, the effect of alternative its anti intercrystalline corrosion, and cost of alloy obviously reduces.
In the last table the 5th group, Si can improve the hardening capacity of alloy, but the rare earth crystal grain thinning, purifies tissue, improves solidity to corrosion.
In the last table the 6th group, than the 5th group, Mn measures increase, and Si measures minimizing, to the basic neutralisation that influences of hardening capacity; C measures minimizing, and is favourable to toughness, but can reduce alloy rigidity, adds Ti and can improve hardness of alloy.
In the last table the 7th group, than the 5th group, C content increases, and helps improving alloy rigidity, increases Cr, Mo content, reduces the Ni amount and can guarantee alloy corrosion resistance.
In the last table the 8th group, than the 7th group, the C amount increases can increase alloy rigidity, but can cause alloy toughness to descend.Reduce the Cr amount, improve the Ni amount and can improve alloy toughness, avoid the C amount to increase the embrittlement of the alloy that causes.Increase the ability that the Mo amount helps improving the anti intercrystalline corrosion of alloy.
The present invention's batching can be the pig iron+steel scrap+alloying element, also can be steel scrap+alloying element.After above-mentioned batching, melting, casting and the processing, the hardness of gained liner plate is HRC 48～55, impelling strength a
KBe 50～150Jcm
-2, uniform corrosion speed is 0.1～0.5gm during pH=4
-2H
-1
Embodiment 1:
Alloying constituent by weight percentage is: 0.18%C, 10.0%Cr, 1.0%Mo, 1.5%Mn, 0.5%RE, 0.5%Ti, 0.5%Si, 0.035%P, 0.035%S, surplus is Fe and impurity.Smelting temperature is 1600 ℃, and pouring temperature is 1400～1500 ℃.Add AL during melting as reductor (amount of adding is 0.2% by weight percentage).Adopt the punching block casting mold, casting mold is 250 ℃ of preheatings before the casting.After ingot casting is shaped, adopt 900 ℃ of insulations to carry out homogenizing annealing in 2 hours, after the roughing, handle through Q-tempering, technology is: preheating is 1 hour under 550 ℃ the temperature again, and reheat to 1000 a ℃ maintenance was quenched after 0.5 hour, with 250 ℃ of tempering 2 hours, obtain final liner plate product subsequently.
Embodiment 2:
Alloying constituent by weight percentage is: 0.22%C, 9.0%Cr, 1.0%Ni, 0.3%Mo, 1.5%Mn, 0.5%RE, 0.5%Ti, 0.5%Si, 0.035%P, 0.035%S, surplus is Fe and impurity.Smelting temperature is 1600 ℃, and pouring temperature is 1400～1500 ℃.Add AL during melting as reductor (amount of adding is 0.2% by weight percentage).Adopt the punching block casting mold, casting mold is 250 ℃ of preheatings before the casting.After ingot casting is shaped, carried out homogenizing annealing in 2 hours 900 ℃ of insulations, after the roughing, handle through Q-tempering, technology is: preheating is 1 hour under 550 ℃ temperature again, and reheat to 1000 a ℃ maintenance was quenched after 0.5 hour, with 250 ℃ of tempering 2 hours, obtain final liner plate product subsequently.
Embodiment 3:
Alloying constituent by weight percentage is: 0.20%C, 9.0%Cr, 0.7%Mo, 1.5%Mn, 0.5%RE, 0.5%Ti, 0.5%Si, 0.035%P, 0.035%S, surplus is Fe and impurity.Smelting temperature is 1600 ℃, and pouring temperature is 1400～1500 ℃.Add AL during melting as reductor (amount of adding is 0.2% by weight percentage).Adopt the punching block casting mold, casting mold is 250 ℃ of preheatings before the casting.After ingot casting is shaped, carried out homogenizing annealing in 2 hours 900 ℃ of insulations, after the roughing, handle through Q-tempering again, handle through Q-tempering, technology is: preheating is 1 hour under 550 ℃ temperature again, and reheat to 1000 a ℃ maintenance was quenched after 0.5 hour, with 250 ℃ of tempering 2 hours, obtain final liner plate product subsequently.
Claims (2)
1, low carbon high alloy steel for ball mill lining is characterized in that described liner plate steel alloying constituent by weight percentage is:
C：0.15～0.30％、 Cr：5.0～10.0％、 Ni：0.5～1.0％、
Mn：1.5～1.7％、 Mo：0～1.5％、 RE：0～0.8％、
Ti：0～1.0％、 Si：0～1.6％、 P：0.01～0.045％、
S:0.01～0.045%; Other metals and non-metallic element total amount are no more than 3%;
Surplus is Fe.
2, the manufacture method of the described steel for ball mill lining of claim 1 is characterized in that all the components is through batching, common melting, cast molding and thermal treatment;
The smelting temperature of described melting is 1550～1650 ℃;
The pouring temperature of described cast molding is 1400～1500 ℃, casting mold preheating between 200～500 ℃ before the casting, and ingot casting at first is incubated 2-10 hour and carries out homogenizing annealing under 900～950 ℃ of temperature;
Described thermal treatment is that quenching and tempering is handled; The quenching and tempering treatment process is: preheating is 0.5～2 hour under 450～650 ℃ temperature, and quench treatment behind reheat to 950～1050 ℃ with 200～300 ℃ temperature tempering 1～3 hour, is promptly finished subsequently.
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| CN100436633C true CN100436633C (en) | 2008-11-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050567A (en) * | 1989-09-28 | 1991-04-10 | 齐靖远 | A kind of low-carbon low-alloy steel |
| CN1059940A (en) * | 1991-06-24 | 1992-04-01 | 河北工学院 | High-toughness antiwear lining plate of big ball mill and manufacturing process thereof |
| JP2002155341A (en) * | 2000-11-14 | 2002-05-31 | Nippon Steel Corp | Corrosion resistant steel having excellent carbon dioxide gas corrosion resistance and weld zone toughness, and corrosion resistant line pipe using the steel |
-
2006
- 2006-10-18 CN CNB2006100966987A patent/CN100436633C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050567A (en) * | 1989-09-28 | 1991-04-10 | 齐靖远 | A kind of low-carbon low-alloy steel |
| CN1059940A (en) * | 1991-06-24 | 1992-04-01 | 河北工学院 | High-toughness antiwear lining plate of big ball mill and manufacturing process thereof |
| JP2002155341A (en) * | 2000-11-14 | 2002-05-31 | Nippon Steel Corp | Corrosion resistant steel having excellent carbon dioxide gas corrosion resistance and weld zone toughness, and corrosion resistant line pipe using the steel |
Non-Patent Citations (6)
| Title |
|---|
| 低碳高合金钢及其在湿磨衬板上的应用. 陈翌庆，丁厚福，李先芬等.钢铁研究学报，第16，卷第4期. 2004 |
| 低碳高合金钢及其在湿磨衬板上的应用. 陈翌庆，丁厚福，李先芬等.钢铁研究学报，第16，卷第4期. 2004 * |
| 热处理对低碳高合金钢组织和性能的影响. 李先芬，丁厚福，程和法等.现代铸铁. 2003 |
| 热处理对低碳高合金钢组织和性能的影响. 李先芬，丁厚福，程和法等.现代铸铁. 2003 * |
| 碳含量对低碳高合金钢冲击腐蚀磨损性能的影响. 吴凯，丁厚福，杜晓东等.矿冶工程，第26，卷第2期. 2006 |
| 碳含量对低碳高合金钢冲击腐蚀磨损性能的影响. 吴凯，丁厚福，杜晓东等.矿冶工程，第26，卷第2期. 2006 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282823A (en) * | 2016-08-25 | 2017-01-04 | 中建材宁国新马耐磨材料有限公司 | A kind of wear resistant corrosion resistant multicomponent alloy steel liner plate |
| CN106282834A (en) * | 2016-08-25 | 2017-01-04 | 中建材宁国新马耐磨材料有限公司 | A kind of preparation method of wear resistant corrosion resistant multicomponent alloy steel liner plate |
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