CN107587041B - High manganese multicomponent alloy liner plate and preparation method thereof - Google Patents
High manganese multicomponent alloy liner plate and preparation method thereof Download PDFInfo
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- CN107587041B CN107587041B CN201610523968.1A CN201610523968A CN107587041B CN 107587041 B CN107587041 B CN 107587041B CN 201610523968 A CN201610523968 A CN 201610523968A CN 107587041 B CN107587041 B CN 107587041B
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Abstract
The invention discloses a kind of high manganese multicomponent alloy liner plates and preparation method thereof, and each chemical component is by weight percentage are as follows: C 1.0~2.0%, Mn 10.0~15.0%；Cr 1.0~3.0%, V 0.1~0.2%, Si0.4~0.6%, Ti 0.2~0.3%, Ni 0.2~0.3%, N 0.1~0.2%, Mo 0.5~1.0%, Dy and/or Tb 0.02~0.03%, S≤0.06%, P≤0.06%, remaining is Fe and inevitable impurity；Crystal phase tissue is carbide+pearlite.High manganese multicomponent alloy liner plate produced by the present invention, can effectively improve the intensity and wearability of liner plate, improve the ore grinding yield of ball mill.
Description
Technical field
The present invention relates to alloy lining fields, and in particular to a kind of ball mill high manganese multicomponent alloy liner plate and its preparation side
Method.
Background technique
Ball grinding machine lining board is so that cylinder is directly impacted and is rubbed from abrasive body and material for protecting ball mill barrel,
Various forms of liner plates can also be used simultaneously to adjust the motion state of abrasive body, made with enhancing abrasive body to the crushing of material
With helping to improve the mill efficiency of grinding machine, increase yield, reduce metal consumption.With following characteristics (1) high abrasion, resistance to punching
Hit: interrupted quenching medium alloy steel liner plate makes the liner plate have good physicochemical property through scientific and reasonable alloying element formula,
Hardness HRC45 ~ 55 or more, notched bar impact strength 25J or more, service life are the 2 times or more of potassium steel, are able to bear huge punching
Dynamics is hit, the surface shape of liner plate can be kept for a long time at work, to guarantee that grinding machine stablizes the yield of 5% or more raising；(2) high
Intensity, high tenacity: in liner plate quenching process, the dedicated interrupted quenching agent for using thermal stability good makes product for medium
Reach high-intensitive, high rigidity and high tenacity cooperation, to meet anti abrasive technique requirement；(3) high performance-price ratio, conformability
Strong: through advanced interrupted quenching process, it has the characteristics that, and quenching hardness is high, toughness value is high, has the liner plate good
Good wear-resisting property, high manganese steel lining plate are compared, and middle alloy interrupted quenching medium alloy steel ball grinding machine lining board shows brilliant
Cost performance adapts to mine wet-milling, dry grinding, mixer mill etc..
But alloy lining currently on the market is big in the presence of abrasion in use, because intensity it is insufficient caused by damage etc. and to ask
Topic.
Summary of the invention
The purpose of the invention is to overcome, alloy lining in use wear greatly, because of intensity by presence in the prior art
Caused by insufficient the problems such as damage, a kind of high manganese multicomponent alloy liner plate and preparation method thereof is provided, liner plate can be effectively improved
Intensity and wearability, improve the ore grinding yield of ball mill.
The present invention provides a kind of high manganese multicomponent alloy liner plate, it is characterised in that: each chemical component is by weight percentage are as follows: C
1.0~2.0%,Mn 10.0~15.0%；Cr 1.0~3.0%,V 0.1~0.2%,Si 0.4~0.6%,Ti 0.2~0.3%,Ni 0.2~
0.3%, N 0.1 ~ 0.2%, Mo 0. 5 ~ 1.0%, Dy and/or Tb 0.02 ~ 0.03%, S≤0.06%, P≤0.06%, remaining is Fe
With inevitable impurity；Crystal phase tissue is carbide+pearlite.
C: carbon is to influence hardness, the key factor of wear resistance and hardness in cast iron.With the increase of phosphorus content, cast iron
Carbide quantity increases in tissue, and hardness of cast improves, and toughness reduces, when especially carbide is in net distribution, impact flexibility drop
It is low even more serious.Reduce carbon content also makes the mobility of molten iron be deteriorated simultaneously, and is easy to make to generate shrinkage cavity and shrinkage porosite inside liner plate,
Liner plate is set casting flaw occur and easily broken.Therefore, how low all unsuitable phosphorus content how high, chooses 1.0-2.0%.
Mn: manganese is good deoxidier and desulfurizing agent, even if having when 0.70% or more being added in carbon steel " manganese steel "
Enough toughness, and intensity with higher and hardness, improve the quenching property of steel, improve the hot-workability of steel, containing manganese 11 ~ 14%
Steel has high wearability, is used for shovel bucket, resistance to lining board of grinder etc.；But manganese amount increases, and can weaken the resistance to corrosion of steel,
Reduce welding performance.
Cr: chromium is carbide former, and anti-graphitization effect is fairly obvious, and chromium containing carbide stability is good, it is ensured that
Liner plate through Overheating Treatment still has higher hardness and a wearability, but chromium content is excessively high will increase melting difficulty, at the same increase at
This, and liner plate is easily broken in use, chooses 1.0-3.0%.
Mo: with elevated temperature strength is good, hardness is high, density is big, resistance to corrosion is strong, thermal expansion coefficient is small, good conduction
With the characteristics such as thermally conductive.The pure metal of molybdenum is silvery white, very rigid.A small amount of molybdenum is added among steel, the hardness of steel can be increased.
Si: silicon is to promote graphited element, can influence the stability of carbide, suitable silicon is added in cast iron,
There is solution strengthening effect, the mobility of molten iron can also be improved；But when silicone content is excessively high, carbide can be made to turn with heat treatment
Become graphite, to reduce the hardness and wearability of liner plate, chooses 0.4 ~ 0.6%.
Ti: the main function of titanium is to strengthen matrix thinning microstructure, is had a positive effect to the wear resistence and toughness that improve alloy,
There is good deoxidation simultaneously, have important beneficial effect to cast carbide form is improved, choose 0.2 ~ 0.3%.
Ni: nickel does not form any type of carbide, is infinitely solid-solution in austenite, expands austenite phase field, and reduction is faced
Boundary's rate of transformation is the main alloy element of stable austenite, can inhibit the formation of pearlite, chooses 0.2 ~ 0.3%.
Dy and/or Tb: rare earth element carries out Metamorphism treatment to molten iron as alterant, can refine crystal grain, reduces carbonization
The distribution that object is set in crystalline substance, being allowed to becomes isolated strip distribution from continuous net-shaped distribution reduces so that impact flexibility be made to improve
The percentage of damage of cast iron lining plate in use chooses 0.02 ~ 0.03%.
Pearlite is that eutectoid reaction occurs by austenite while being precipitated, the ferrite tissue alternate with cementite lamella,
The performance of pearlite is between ferrite and cementite, and obdurability is preferable, and intensity is higher, and hardness is moderate, plasticity and toughness compared with
It is good.Pearlite and carbide are formed into extra large structure, can effectively improve the hardness and toughness of resistance to liner plate.
The present invention provides a kind of high manganese multicomponent alloy liner plate, it is preferred that, each chemical component is by weight percentage are as follows:
C 1.0%,Mn 10.0%；Cr 3.0%,V 0.1%,Si 0.4%,Ti 0.2%,Ni 0.2%,N 0.1%,Mo 0. 5%,Dy
0.02%, S≤0.06%, P≤0.06%, remaining is Fe and inevitable impurity；Crystal phase tissue is carbide+pearlite.
The present invention provides a kind of high manganese multicomponent alloy liner plate, it is preferred that, each chemical component is by weight percentage are as follows:
C 2.0%,Mn 15.0%；Cr 1.0%,V 0.2%,Si 0.6%,Ti 0.3%,Ni 0.3%,N 0.2%,Mo 1.0%,Tb
0.02%, S≤0.06%, P≤0.06%, remaining is Fe and inevitable impurity；Crystal phase tissue is carbide+pearlite.
The present invention provides a kind of high manganese multicomponent alloy liner plate, it is preferred that, each chemical component is by weight percentage are as follows:
C 1.0%,Mn 13%；Cr 2.0%,V 0.1%,Si 0.4%,Ti 0.2%,Ni 0.2%,N 0.1%,Mo 0. 5%,Dy+Tb
0.03%, S≤0.06%, P≤0.06%, remaining is Fe and inevitable impurity；Crystal phase tissue is carbide+pearlite.
The present invention provides a kind of preparation method of high manganese multicomponent alloy liner plate, comprising the following steps:
Step 1: being added in smelting furnace with medium-frequency induction furnace by main chemical compositions weight percent and remove ferro-boron, nitridation
All furnace charges heating other than vanadium iron, ferrotianium, ferronickel and Re, when molten iron temperature reaches 1580 DEG C, sampling carries out chemical analysis,
Control the weight percent of each chemical component；
Step 2: each chemical component is continuously heating to 1600 DEG C after reaching expected percentage, and slagging-off is sprinkled into smelting furnace
Agent scratches clean in furnace after slag, and addition prepares weight and roasted ferro-boron, ferrotianium, ferronickel melting 3 ~ 5 minutes in advance, and vanadium nitride is added
Iron 0.2 ~ 0.25% is completed once to go bad in furnace, and the progress deoxidation of alloy deoxidier 0.2 ~ 0.3% is then added and comes out of the stove；
Step 3: Dy and/or Tb 0.2 ~ 0.3% and ferrovanadium nitride 0.05 ~ 0.1% being crushed to granularity 6 ~ 10mm fritter, passed through
After 200 DEG C of drying, while it being once placed in cinder ladle bottom, access molten iron carries out secondary metamorphic processing；
Step 4: the bits in packet will be scratched clean with deslagging agent by secondary metamorphic treated molten iron, it is cooled to 1460 ~
It 1480 DEG C, is poured with high-frequency vibration platform, high-frequency vibration Platform Vibration frequency is 150 ~ 200Hz, 0.5 ~ 1mm of amplitude, to cast gate
Molten steel is unpacked at when kermesinus, is obtained to casting；
Step 5: 650 DEG C of heat preservation 2h will be warming up to casting, then be warming up to 950 DEG C of heat preservation 3h, be atomized be situated between with liquid-gas later
Matter is cooled to 400 DEG C, then is cooled to room temperature in air to get the polynary tup of the high chromium of finished product is arrived.
The present invention provides a kind of preparation method of high manganese multicomponent alloy liner plate, it is preferred that, nitridation described in step 2
Vanadium iron product grade is FeV55N11。
Ferrovanadium nitride is a kind of VN alloy additive, and performance is better than vanadium iron and vanadium nitride, can be widely applied to high intensity
Pipe line steel, high-intensitive fashioned iron (H profile steel, I-steel, channel steel, angle steel), thin slab continuous casting and rolling high-strength steel strip, non-hardened and tempered steel,
The products such as high-speed tool steel.Ferrovanadium nitride can reach 5.0g/cm because of its specific gravity3More than, than adding vanadium nitride (specific gravity 3.55.0g/
cm3Left and right) there is higher absorptivity, for the absorptivity of ferrovanadium nitride up to 95% or more, average specific VN alloy absorptivity is high by 3%
~5%, performance is more stable, have the function of higher refinement crystal grain and promote intensity, toughness, ductility etc..The trade mark is
FeV55N11Ferrovanadium nitride in V content be not less than 53.0%, N content be not less than 10%.Present invention use with FeV55N11 replace V,
N component improves the recovery rate of V, N, saves V, the dosage 40% of N, while performance is more stable, has higher refinement crystal grain
With promote intensity, toughness, the functions such as ductility, reduce costs.
The present invention provides a kind of preparation method of high manganese multicomponent alloy liner plate, it is preferred that, alloy described in step 2
Deoxidier is FeAl60.The present invention uses FeA160 as alloy deoxidier, than great, matter density is good, easily enters inside molten steel
Recovery rate is saved 30% or more the dosage of Al, is reduced costs up to 90% or more.
The present invention provides a kind of preparation method of high manganese multicomponent alloy liner plate, it is preferred that, casting described in step 4
The molding sand material that platform uses is CO2Waterglass hardened sand.
By the present invention in that being FeV with the trade mark55N11Ferrovanadium nitride as Metamorphism treatment agent, instead of V, N component, improve
The recovery rate of V, N save V, the dosage 40% of N, while performance is more stable, have higher refinement crystal grain and promotion intensity,
The functions such as toughness, ductility, reduce costs.
The present invention further selects FeA160 as alloy deoxidier, than great, matter density is good, easily enters inside molten steel
Recovery rate is saved 30% or more the dosage of Al, is reduced costs up to 90% or more.
The present invention selects high-frequency vibration platform to cast in high manganese multicomponent alloy liner plate preparation process, can significantly refine gold
Belong to, sound casting tissue, eliminates the inhomogeneities of cast structure and chemical analysis.Microscopic segregation is eliminated, gas hole defect is reduced, subtracts
Shrinkage porosite in few casting, improves consistency 5%, improves alloy material tensile strength, elongation percentage, yield strength, wearability etc..
Detailed description of the invention
Fig. 1 is a kind of metallographic structure figure of high manganese multicomponent alloy liner plate
Specific embodiment
Embodiment 1
A kind of high manganese multicomponent alloy liner plate, each chemical component is by weight percentage are as follows: C 1.0%, Mn 10.0%；Cr
3.0%、V 0.1%、Si 0.4%、Ti 0.2%、Ni 0.2%、N 0.1%、Mo 0. 5%、Dy 0.02%、S≤0.06%、P≤
0.06%, remaining is Fe and inevitable impurity；Crystal phase tissue is carbide+pearlite.
Embodiment 2
A kind of high manganese multicomponent alloy liner plate, each chemical component is by weight percentage are as follows: C 2.0%, Mn 15.0%；Cr
1.0%、V 0.2%、Si 0.6%、Ti 0.3%、Ni 0.3%、N 0.2%、Mo 1.0%、Tb 0.02%、S≤0.06%、P≤
0.06%, remaining is Fe and inevitable impurity；Crystal phase tissue is carbide+pearlite.
Embodiment 3
A kind of high manganese multicomponent alloy liner plate, each chemical component is by weight percentage are as follows: C 1.0%, Mn 13%；Cr 2.0%,V
0.1%, Si 0.4%, Ti 0.2%, Ni 0.2%, N 0.1%, Mo 0. 5%, Dy+Tb 0.03%, S≤0.06%, P≤0.06%,
Remaining is Fe and inevitable impurity；Crystal phase tissue is carbide+pearlite.
1 ~ 3 high-frequency vibration of embodiment be poured high manganese multicomponent alloy liner plate the preparation method is as follows:
Step 1: being added in smelting furnace with medium-frequency induction furnace by main chemical compositions weight percent and remove ferro-boron, nitridation
All furnace charges heating other than vanadium iron, ferrotianium, ferronickel and rare earth element, when molten iron temperature reaches 1580 DEG C, samplingization
Credit analysis, controls the weight percent of each chemical component；
Step 2: each chemical component is continuously heating to 1600 DEG C after reaching expected percentage, and slagging-off is sprinkled into smelting furnace
Agent scratches clean in furnace after slag, and addition prepares weight and roasted ferro-boron, ferrotianium, ferronickel melting 3 ~ 5 minutes in advance, and vanadium nitride is added
Iron 0.2 ~ 0.25% is completed once to go bad in furnace, and the progress deoxidation of alloy deoxidier 0.2 ~ 0.3% is then added and comes out of the stove；
Step 3: Re 0.2 ~ 0.3% and ferrovanadium nitride 0.05 ~ 0.1% being crushed to granularity 6 ~ 10mm fritter, dried through 200 DEG C
After dry, while it being once placed in cinder ladle bottom, access molten iron carries out secondary metamorphic processing；
Step 4: the bits in packet will be scratched clean with deslagging agent by secondary metamorphic treated molten iron, it is cooled to 1460 ~
It 1480 DEG C, is poured with high-frequency vibration platform, high-frequency vibration Platform Vibration frequency is 150 ~ 200Hz, 0.5 ~ 1mm of amplitude, to cast gate
Molten steel is unpacked at when kermesinus, is obtained to casting；
Step 5: 650 DEG C of heat preservation 2h will be warming up to casting, then be warming up to 950 DEG C of heat preservation 3h, be atomized be situated between with liquid-gas later
Matter is cooled to 400 DEG C, then is cooled to room temperature in air to get the high manganese multicomponent alloy liner plate of finished product is arrived.
When the low shock loading of high manganese multicomponent alloy liner plate made from embodiment 1 ~ 3, hardness is up to HB400~500, HI high impact
When load, hardness is up to HB600~800, and internal toughness is higher, and chill casting, no rarefaction defect, metallographic structure is not added
As shown in Figure 1, by the extra large structure in sea that carbide and pearlite are formed.Pearlite is that eutectoid reaction occurs by austenite while being precipitated
, the ferrite tissue alternate with cementite lamella, the performance of pearlite between ferrite and cementite, obdurability compared with
Good, intensity is higher, and hardness is moderate, and plasticity and toughness are preferable.Pearlite and carbide are formed into extra large structure, can effectively be mentioned
The hardness and toughness of high liner plate.
Claims (5)
1. a kind of high manganese multicomponent alloy liner plate, it is characterised in that: each chemical component is by weight percentage are as follows: C 1.0 ~ 2.0%, Mn
10.0~15.0%；Cr 1.0~3.0%,V 0.1~0.2%,Si 0.4~0.6%,Ti 0.3%,Ni 0.2~0.3%,N 0.1~0.2%,
Mo 0. 5 ~ 1.0%, Dy and/or Tb 0.02 ~ 0.03%, S≤0.06%, P≤0.06%, remaining is Fe and inevitable impurity；
Crystal phase tissue is carbide+pearlite of the extra large structure in sea；
The preparation method of the high manganese multicomponent alloy liner plate the following steps are included:
Step 1: being added in smelting furnace with medium-frequency induction furnace by main chemical compositions weight percent and remove ferro-boron, vanadium nitride
All furnace charges heating other than iron, ferrotianium, ferronickel and Re, when molten iron temperature reaches 1580 DEG C, sampling carries out chemical analysis, control
Make the weight percent of each chemical component；
Step 2: each chemical component is continuously heating to 1600 DEG C after reaching expected percentage, and deslagging agent is sprinkled into smelting furnace,
It scratches clean in furnace after slag, addition prepares weight and roasted ferro-boron, ferrotianium, ferronickel melting 3 ~ 5 minutes in advance, and ferrovanadium nitride is added
Once go bad in 0.2 ~ 0.25% completion furnace, the progress deoxidation of alloy deoxidier 0.2 ~ 0.3% is then added and comes out of the stove；
Step 3: Dy and/or Tb 0.2 ~ 0.3% and ferrovanadium nitride 0.05 ~ 0.1% being crushed to granularity 6 ~ 10mm fritter, through 200 DEG C
After drying, while it being once placed in cinder ladle bottom, access molten iron carries out secondary metamorphic processing；
Step 4: the bits in packet will be scratched clean with deslagging agent by secondary metamorphic treated molten iron, and be cooled to 1460 ~ 1480 DEG C,
It is poured with high-frequency vibration platform, high-frequency vibration Platform Vibration frequency is 150 ~ 200Hz, 0.5 ~ 1mm of amplitude, to cast gate molten steel at dark
It unpacks, is obtained to casting when red；
Step 5: it will be warming up to 650 DEG C of heat preservation 2h to casting, then be warming up to 950 DEG C of heat preservation 3h, it is cold with liquid-gas atomizing medium later
But it to 400 DEG C, then is cooled to room temperature to get to finished product in air.
2. a kind of high manganese multicomponent alloy liner plate according to claim 1, it is characterised in that: each chemical component percentage by weight
Than are as follows: C 2.0%, Mn 15.0%；Cr 1.0%,V 0.2%,Si 0.6%,Ti 0.3%,Ni 0.3%,N 0.2%,Mo 1.0%,Tb
0.02%, S≤0.06%, P≤0.06%, remaining is Fe and inevitable impurity；Crystal phase tissue be the extra large structure in sea carbide+
Pearlite.
3. a kind of high manganese multicomponent alloy liner plate according to claim 1 or 2, it is characterised in that: vanadium nitride described in step 2
The iron product trade mark is FeV55N11.
4. a kind of high manganese multicomponent alloy liner plate according to claim 1 or 2, it is characterised in that: alloy described in step 2 is de-
Oxygen agent is FeA160.
5. a kind of high manganese multicomponent alloy liner plate according to claim 1 or 2, it is characterised in that: casting described in step 4 is flat
The molding sand material that platform uses is CO2Waterglass hardened sand.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101736200A (en) * | 2009-12-24 | 2010-06-16 | 宁国市开源电力耐磨材料有限公司 | High-carbon steel multi-alloy wear-resisting ball and production method thereof |
| CN101961668A (en) * | 2010-10-28 | 2011-02-02 | 淮阴工学院 | Ball mill groove type lining plate capable of fixing material cushion layer and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101736200A (en) * | 2009-12-24 | 2010-06-16 | 宁国市开源电力耐磨材料有限公司 | High-carbon steel multi-alloy wear-resisting ball and production method thereof |
| CN101961668A (en) * | 2010-10-28 | 2011-02-02 | 淮阴工学院 | Ball mill groove type lining plate capable of fixing material cushion layer and manufacturing method thereof |
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