CN106521321A - High-toughness wear resisting ball and preparation method thereof - Google Patents
High-toughness wear resisting ball and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a high-toughness wear resisting ball. The high-toughness wear resisting ball comprises the following chemical components in percentage by weight: 0.65-0.7% of C, 0.25-0.35% of Si, 2-2.5% of Mn, 0.03-0.04% of Al, 0.98-1.1% of Cr, 0.003-0.005% of B, 0.03-0.06% of Mg, 0.02-0.04% of V, 0.01-0.03% of Ti, 0.02-0.04% of Zr, 0.01-0.03% of Nb, 0.1-0.35% of Mo, 0.01-0.02% of S, 0.01-0.02% of P, and the balance of Fe and inevitable impurities. The invention further proposes a preparation method of the high-toughness wear resisting ball; the preparation method is simple in process and mild in conditions; and the prepared wear resisting ball is high in toughness and excellent in wear resistance.
Description
Technical field
The present invention relates to high-abrasive material technical field, more particularly to a kind of high-toughness wear-resistant ball and preparation method thereof.
Background technology
Capital equipment of the ball mill as material grinding in mine, cement industry, obtains extensive popularization and application, therein
Ball mill steel ball is the important expendable material of ball mill operation work, its principle be using wear-resistant ball and material impact and grind
Mill effect makes the quality of crushing material, wear-resistant ball directly affect the crushing quality of material to be comminuted, and the service life of wear-resistant ball is straight
Impact labor productivity is connect, so the requirement to wear-resistant ball is that to have enough intensity and hardness, has preferably anti-again
Impact flexibility.In prior art, mill Jie steel ball of ball mill is mainly ball milling steel-casting or the ball millings such as chromium alloy, Mn series alloy
Ironcasting, such as high chrome ball, low-chrome steel ball, multicomponent alloy steel ball and vanadium-titanium-chromium alloy steel ball etc., during use, are present
Impact flexibility is not the fine, defect that anti-wear performance is not good enough.
The content of the invention
Based on the technical problem that background technology is present, the present invention proposes a kind of high-toughness wear-resistant ball and preparation method thereof,
The preparation method of the high-toughness wear-resistant ball, its process are simple, mild condition, and the wear-resistant ball toughness for obtaining is high, anti-wear performance is good.
A kind of high-toughness wear-resistant ball proposed by the present invention, its chemical composition include by weight percentage：C：0.65-0.7%,
Si：0.25-0.35%, Mn：2-2.5%, Al：0.03-0.04%, Cr：0.98-1.1%, B：0.003-0.005%, Mg：
0.03-0.06%, V：0.02-0.04%, Ti：0.01-0.03%, Zr：0.02-0.04%, Nb：0.01-0.03%, Mo：
0.1-0.35%, S：0.01-0.02%, P：0.01-0.02%, remaining be Fe and inevitable impurity.
Preferably, in its chemical composition, the percentage by weight of Cr, Mn, Mo meets relationship below：Mn >=10 × Mo, and
Cr+Mn >=3.2%.
Preferably, in its chemical composition, the percentage by weight of Nb, B, Ti meets relationship below：Ti=kB+Nb, and k takes
3-5。
Preferably, its chemical composition includes by weight percentage：C：0.68%th, Si：0.31%th, Mn：2.3%th, Al：
0.034%th, Cr：1%th, B：0.004%th, Mg：0.045%th, V：0.03%th, Ti：0.027%th, Zr：0.028%th, Nb：
0.011%th, Mo：0.13%th, S：0.014%th, P：0.01%th, remaining is Fe and inevitable impurity.
The preparation method of a kind of described high-toughness wear-resistant ball that the present invention is also proposed, comprises the following steps：
S1, chromium steel, molybdenum-iron, the pig iron, steel scrap are placed in vaccum sensitive stove, are warming up to 1400-1450 DEG C, be incubated 8-
13min, is subsequently adding ferrosilicon, ferromanganese, aluminium ingot, magnesium, vanadium iron, ferrotianium, ferrozirconium, adds ferro-boron and ferro-niobium, rise after melting sources
Temperature is incubated 10-30min, aluminium alloy is obtained after slag is pulled out to 1550-1570 DEG C；
S2, it is poured in metal die die cavity after aluminium alloy is cooled to 1430-1450 DEG C, treats that aluminium alloy temperature is down to
Take out when 900-950 DEG C, be cooled to room temperature and obtain wear-resistant ball base substrate；
S3, wear-resistant ball base substrate is warming up to into 850-900 DEG C, is incubated 20-35min, tempering after being cooled to room temperature obtains described
High-toughness wear-resistant ball.
Preferably, in S3, during intensification, heating rate is A DEG C/s, A=1.3+K1×CCr+K2×CMn, wherein,
K1Take 50-100, K2Take 30-50, CCr、CMnThe percentage by weight of respectively Cr and Mn.
Preferably, in S3, during being cooled to room temperature, cooling rate is B DEG C/s, B=0.8+K3×CCr+K4×
CMn, wherein, K3Take 100-200, K4Take 30-80, CCr、CMnThe respectively percentage by weight of Cr, Mn.
Preferably, in S3, the temperature of the tempering is 350-365 DEG C, and the time of tempering is 45-65min.
High-toughness wear-resistant ball of the present invention, has properly increased the content of C in its chemical composition, after material quenching is prevented
On the premise of workpiece ftractures, the impact flexibility of material is improve, while adding Mn and Cr, and containing for Mn and Cr has been properly increased
Amount, while reducing the content of Mo, significantly improves the quenching degree and temper resistance of material, while making the Mn and B phase of addition
Coordinate, on the premise of preventing boron crisp, it is suppressed that the transformation of polygonal ferrite, while bainite transformation area is protruded, larger
In the range of obtain Bei-horse tissue；In Nb and B addition systems, the transition temperature of bainite is reduced, has further refined tissue,
Matrix middle position dislocation density is improve, and adds a certain amount of Ti, and make the percentage by weight of Nb, B, Ti meet following relation
Formula：Ti=kB+Nb, and k takes 3-5, so that Nb, B, Ti have optimum synergisticing performance, it is to avoid N and B's is in combination with the simultaneously formed
TiN, significantly improves the toughness of material, while preventing the formation of thick field trash.It is in preparation method, specifically chosen
The temperature of quenching is 850-900 DEG C, is incubated 20-35min, to ensure abundant austenitizing, in addition, rising in controlling quenching process
The speed of temperature and the speed of cooling, make heating rate A meet A=1.3+K1×CCr+K2×CMn, K1Take 50-100, K2Take 30-50,
Rate of temperature fall B meets B=0.8+K3×CCr+K4×CMn, K3Take 100-200, K430-80 is taken, is separated out pearlite and is reduced, geneva
Body tissue gradually increases, hardness increase, increased the stability that Cooling Austenite Transformation is martensite, enhances the through hardening of material
Property, improve the hardness of through hardening layer.
Specific embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of high-toughness wear-resistant ball proposed by the present invention, its chemical composition include by weight percentage：C：0.7%th, Si：
0.25%th, Mn：2.5%th, Al：0.03%th, Cr：1.1%th, B：0.003%th, Mg：0.06%th, V：0.02%th, Ti：0.03%th, Zr：
0.02%th, Nb：0.03%th, Mo：0.1%th, S：0.02%th, P：0.01%th, remaining is Fe and inevitable impurity.
The preparation method of a kind of described high-toughness wear-resistant ball that the present invention is also proposed, comprises the following steps：
S1, chromium steel, molybdenum-iron, the pig iron, steel scrap are placed in vaccum sensitive stove, are warming up to 1450 DEG C, be incubated 8min, Ran Houjia
Enter ferrosilicon, ferromanganese, aluminium ingot, magnesium, vanadium iron, ferrotianium, ferrozirconium, ferro-boron and ferro-niobium are added after melting sources, 1570 DEG C are warming up to, is protected
Warm 10min, obtains aluminium alloy after slag is pulled out；
S2, it is poured in metal die die cavity after aluminium alloy is cooled to 1450 DEG C, when aluminium alloy temperature is down to 900 DEG C
Take out, be cooled to room temperature and obtain wear-resistant ball base substrate；
S3, wear-resistant ball base substrate is warming up to 900 DEG C, is incubated 20min, to obtain the high tenacity resistance to for tempering after being cooled to room temperature
Abrading-ball.
Embodiment 2
A kind of high-toughness wear-resistant ball proposed by the present invention, its chemical composition include by weight percentage：C：0.65%th, Si：
0.35%th, Mn：2%th, Al：0.04%th, Cr：0.98%th, B：0.005%th, Mg：0.03%th, V：0.04%th, Ti：0.01%th, Zr：
0.04%th, Nb：0.01%th, Mo：0.35%th, S：0.01%th, P：0.02%th, remaining is Fe and inevitable impurity.
The preparation method of a kind of described high-toughness wear-resistant ball that the present invention is also proposed, comprises the following steps：
S1, chromium steel, molybdenum-iron, the pig iron, steel scrap are placed in vaccum sensitive stove, are warming up to 1400 DEG C, be incubated 13min, then
Ferrosilicon, ferromanganese, aluminium ingot, magnesium, vanadium iron, ferrotianium, ferrozirconium are added, ferro-boron and ferro-niobium are added after melting sources, 1550 DEG C are warming up to,
Insulation 30min, obtains aluminium alloy after slag is pulled out；
S2, it is poured in metal die die cavity after aluminium alloy is cooled to 1430 DEG C, when aluminium alloy temperature is down to 950 DEG C
Take out, be cooled to room temperature and obtain wear-resistant ball base substrate；
S3, wear-resistant ball base substrate is warming up to 850 DEG C, is incubated 35min, to obtain the high tenacity resistance to for tempering after being cooled to room temperature
Abrading-ball.
Embodiment 3
A kind of high-toughness wear-resistant ball proposed by the present invention, its chemical composition include by weight percentage：C：0.68%th, Si：
0.27%th, Mn：2.2%th, Al：0.038%th, Cr：1.05%th, B：0.0036%th, Mg：0.035%th, V：0.036%th, Ti：
0.029%th, Zr：0.024%th, Nb：0.011%th, Mo：0.2%th, S：0.018%th, P：0.012%th, remaining is Fe and inevitable
Impurity.
The preparation method of a kind of described high-toughness wear-resistant ball that the present invention is also proposed, comprises the following steps：
S1, chromium steel, molybdenum-iron, the pig iron, steel scrap are placed in vaccum sensitive stove, are warming up to 1470 DEG C, be incubated 9min, Ran Houjia
Enter ferrosilicon, ferromanganese, aluminium ingot, magnesium, vanadium iron, ferrotianium, ferrozirconium, ferro-boron and ferro-niobium are added after melting sources, 1560 DEG C are warming up to, is protected
Warm 13min, obtains aluminium alloy after slag is pulled out；
S2, it is poured in metal die die cavity after aluminium alloy is cooled to 1440 DEG C, when aluminium alloy temperature is down to 910 DEG C
Take out, be cooled to room temperature and obtain wear-resistant ball base substrate；
S3, wear-resistant ball base substrate is warming up to 890 DEG C, is incubated 24min, to obtain the high tenacity resistance to for tempering after being cooled to room temperature
Abrading-ball, wherein, the temperature of tempering is 350 DEG C, and the time of tempering is 65min；
Wherein, it is warming up to during 890 DEG C, heating rate is A DEG C/s, A=1.3+K1×CCr+K2×CMn, wherein, K1
Take 50, K2Take 50, CCr、CMnThe percentage by weight of respectively Cr and Mn, i.e., A=2.925 DEG C/s；
In S3, during being cooled to room temperature, cooling rate is B DEG C/s, B=0.8+K3×CCr+K4×CMn, wherein,
K3Take 100, K4Take 80, CCr、CMnThe respectively percentage by weight of Cr, Mn, i.e., B=3.61 DEG C/s.
Embodiment 4
A kind of high-toughness wear-resistant ball proposed by the present invention, its chemical composition include by weight percentage：C：0.66%th, Si：
0.32%th, Mn：2.3%th, Al：0.033%th, Cr：0.98%th, B：0.0035%th, Mg：0.055%th, V：0.026%th, Ti：
0.0255%th, Zr：0.036%th, Nb：0.015%th, Mo：0.18%th, S：0.012%th, P：0.017%th, remaining is Fe and can not keep away
The impurity exempted from.
The preparation method of a kind of described high-toughness wear-resistant ball that the present invention is also proposed, comprises the following steps：
S1, chromium steel, molybdenum-iron, the pig iron, steel scrap are placed in vaccum sensitive stove, are warming up to 1410 DEG C, be incubated 11min, then
Ferrosilicon, ferromanganese, aluminium ingot, magnesium, vanadium iron, ferrotianium, ferrozirconium are added, ferro-boron and ferro-niobium are added after melting sources, 1560 DEG C are warming up to,
Insulation 27min, obtains aluminium alloy after slag is pulled out；
S2, it is poured in metal die die cavity after aluminium alloy is cooled to 1438 DEG C, when aluminium alloy temperature is down to 940 DEG C
Take out, be cooled to room temperature and obtain wear-resistant ball base substrate；
S3, wear-resistant ball base substrate is warming up to 870 DEG C, is incubated 32min, to obtain the high tenacity resistance to for tempering after being cooled to room temperature
Abrading-ball, wherein, the temperature of tempering is 365 DEG C, and the time of tempering is 45min；
Wherein, it is warming up to during 870 DEG C, heating rate is A DEG C/s, A=1.3+K1×CCr+K2×CMn, wherein, K1
Take 100, K2Take 30, CCr、CMnThe percentage by weight of respectively Cr and Mn；I.e. A=2.97 DEG C/s；
During being cooled to room temperature, cooling rate is B DEG C/s, B=0.8+K3×CCr+K4×CMn, wherein, K3Take 200,
K4Take 30, CCr、CMnThe respectively percentage by weight of Cr, Mn, i.e., B=3.45 DEG C/s.
Embodiment 5
A kind of high-toughness wear-resistant ball proposed by the present invention, its chemical composition include by weight percentage：C：0.68%th, Si：
0.31%th, Mn：2.3%th, Al：0.034%th, Cr：1%th, B：0.004%th, Mg：0.045%th, V：0.03%th, Ti：0.027%th,
Zr：0.028%th, Nb：0.011%th, Mo：0.13%th, S：0.014%th, P：0.01%th, remaining is Fe and inevitable impurity.
The preparation method of a kind of described high-toughness wear-resistant ball that the present invention is also proposed, comprises the following steps：
S1, chromium steel, molybdenum-iron, the pig iron, steel scrap are placed in vaccum sensitive stove, are warming up to 1420 DEG C, be incubated 10min, then
Ferrosilicon, ferromanganese, aluminium ingot, magnesium, vanadium iron, ferrotianium, ferrozirconium are added, ferro-boron and ferro-niobium are added after melting sources, 1560 DEG C are warming up to,
Insulation 20min, obtains aluminium alloy after slag is pulled out；
S2, it is poured in metal die die cavity after aluminium alloy is cooled to 1440 DEG C, when aluminium alloy temperature is down to 920 DEG C
Take out, be cooled to room temperature and obtain wear-resistant ball base substrate；
S3, wear-resistant ball base substrate is warming up to 880 DEG C, is incubated 28min, to obtain the high tenacity resistance to for tempering after being cooled to room temperature
Abrading-ball, wherein, the temperature of tempering is 355 DEG C, and the time of tempering is 50min；
Wherein, it is warming up to during 880 DEG C, heating rate is A DEG C/s, A=1.3+K1×CCr+K2×CMn, wherein, K1
Take 80, K2Take 40, CCr、CMnThe percentage by weight of respectively Cr and Mn, i.e., A=3.02 DEG C/s；
During being cooled to room temperature, cooling rate is B DEG C/s, B=0.8+K3×CCr+K4×CMn, wherein, K3Take 150,
K4Take 60, CCr、CMnThe respectively percentage by weight of Cr, Mn, i.e., B=2.33 DEG C/s.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, should all be included within the scope of the present invention.
Claims (8)
1. a kind of high-toughness wear-resistant ball, it is characterised in that its chemical composition includes by weight percentage：C：0.65-0.7%, Si：
0.25-0.35%, Mn：2-2.5%, Al：0.03-0.04%, Cr：0.98-1.1%, B：0.003-0.005%, Mg：0.03-
0.06%th, V：0.02-0.04%, Ti：0.01-0.03%, Zr：0.02-0.04%, Nb：0.01-0.03%, Mo：0.1-
0.35%th, S：0.01-0.02%, P：0.01-0.02%, remaining be Fe and inevitable impurity.
2. high-toughness wear-resistant ball according to claim 1, it is characterised in that in its chemical composition, the weight hundred of Cr, Mn, Mo
Ratio is divided to meet relationship below：Mn >=10 × Mo, and Cr+Mn >=3.2%.
3. high-toughness wear-resistant ball according to claim 1 or claim 2, it is characterised in that in its chemical composition, the weight of Nb, B, Ti
Percentage ratio meets relationship below：Ti=kB+Nb, and k takes 3-5.
4. the high-toughness wear-resistant ball according to any one of claim 1-3, it is characterised in that its chemical composition percentage by weight
Than including：C：0.68%th, Si：0.31%th, Mn：2.3%th, Al：0.034%th, Cr：1%th, B：0.004%th, Mg：0.045%th, V：
0.03%th, Ti：0.027%th, Zr：0.028%th, Nb：0.011%th, Mo：0.13%th, S：0.014%th, P：0.01%th, remaining is Fe
With inevitable impurity.
5. a kind of preparation method of the high-toughness wear-resistant ball as any one of claim 1-4, it is characterised in that including following
Step：
S1, chromium steel, molybdenum-iron, the pig iron, steel scrap are placed in vaccum sensitive stove, are warming up to 1400-1450 DEG C, be incubated 8-13min, so
Ferrosilicon, ferromanganese, aluminium ingot, magnesium, vanadium iron, ferrotianium, ferrozirconium are added afterwards, add ferro-boron and ferro-niobium, be warming up to 1550- after melting sources
1570 DEG C, 10-30min is incubated, aluminium alloy after slag is pulled out, is obtained；
S2, it is poured in metal die die cavity after aluminium alloy is cooled to 1430-1450 DEG C, treats that aluminium alloy temperature is down to 900-
Take out when 950 DEG C, be cooled to room temperature and obtain wear-resistant ball base substrate；
S3, wear-resistant ball base substrate is warming up to into 850-900 DEG C, is incubated 20-35min, tempering after being cooled to room temperature obtains the high-ductility
Property wear-resistant ball.
6. the preparation method of high-toughness wear-resistant ball according to claim 5, it is characterised in that in S3, during intensification,
Heating rate is A DEG C/s, A=1.3+K1×CCr+K2×CMn, wherein, K1Take 50-100, K2Take 30-50, CCr、CMnRespectively Cr
With the percentage by weight of Mn.
7. according to claim 5 or 6 high-toughness wear-resistant ball preparation method, it is characterised in that in S3, be cooled to room temperature
During, cooling rate is B DEG C/s, B=0.8+K3×CCr+K4×CMn, wherein, K3Take 100-200, K4Take 30-80, CCr、
CMnThe respectively percentage by weight of Cr, Mn.
8. according to any one of claim 5-7 high-toughness wear-resistant ball preparation method, it is characterised in that in S3, institute
The temperature for stating tempering is 350-365 DEG C, and the time of tempering is 45-65min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611071441.6A CN106521321A (en) | 2016-11-29 | 2016-11-29 | High-toughness wear resisting ball and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611071441.6A CN106521321A (en) | 2016-11-29 | 2016-11-29 | High-toughness wear resisting ball and preparation method thereof |
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| CN106521321A true CN106521321A (en) | 2017-03-22 |
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| CN201611071441.6A Pending CN106521321A (en) | 2016-11-29 | 2016-11-29 | High-toughness wear resisting ball and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109023089A (en) * | 2018-09-07 | 2018-12-18 | 安徽省宁国市宁沪钢球有限公司 | Low abrasion wear-resistant ball of a kind of ball mill high tenacity and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005298909A (en) * | 2004-04-13 | 2005-10-27 | Nippon Steel Corp | Cast slab having reduced surface crack |
| CN103014550A (en) * | 2012-12-10 | 2013-04-03 | 马鞍山市恒达耐磨材料有限责任公司 | High chromium multielement alloy wear resisting ball and manufacturing method thereof |
| CN104372255A (en) * | 2014-10-14 | 2015-02-25 | 山东钢铁股份有限公司 | Shock-resistant high-abrasion-resistant steel ball steel and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005298909A (en) * | 2004-04-13 | 2005-10-27 | Nippon Steel Corp | Cast slab having reduced surface crack |
| CN103014550A (en) * | 2012-12-10 | 2013-04-03 | 马鞍山市恒达耐磨材料有限责任公司 | High chromium multielement alloy wear resisting ball and manufacturing method thereof |
| CN104372255A (en) * | 2014-10-14 | 2015-02-25 | 山东钢铁股份有限公司 | Shock-resistant high-abrasion-resistant steel ball steel and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109023089A (en) * | 2018-09-07 | 2018-12-18 | 安徽省宁国市宁沪钢球有限公司 | Low abrasion wear-resistant ball of a kind of ball mill high tenacity and preparation method thereof |
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Application publication date: 20170322 |