CN107747031A - A kind of wear-resistant ball of corrosion-resistant low abrasion and preparation method thereof - Google Patents
A kind of wear-resistant ball of corrosion-resistant low abrasion and preparation method thereof Download PDFInfo
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- CN107747031A CN107747031A CN201710995945.5A CN201710995945A CN107747031A CN 107747031 A CN107747031 A CN 107747031A CN 201710995945 A CN201710995945 A CN 201710995945A CN 107747031 A CN107747031 A CN 107747031A
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- low abrasion
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/20—Disintegrating members
-
- 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
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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Abstract
The present invention proposes a kind of wear-resistant ball of corrosion-resistant low abrasion and preparation method thereof, including following percentage composition alloying element：Carbon 2.1 2.8%, silicon 0.5 0.8%, manganese 1.8 2.2%, chromium 16 22%, nickel 1.8 2.1%, molybdenum 0.5 2%, vanadium 0.1 0.35%, tantalum 1.3 2.6%, surplus is iron and inevitable impurity, the present invention is matched by rational element and process optimization, obtained wear-resistant ball comprehensive mechanical performance is strong, with excellent corrosion-resistant and wearability, service life improves more than 6 times compared to traditional high-chromium wear-resistant ball.
Description
Technical field
The present invention relates to wear-resistant ball and its preparing technical field, and in particular to a kind of wear-resistant ball of corrosion-resistant low abrasion and its
Preparation method.
Background technology
Wear-resistant ball is a kind of crushing medium being used in ball mill, wide at present for the material in crushing mill
It is general be applied to metallurgical mine, cement building material, thermal power generation, flue gas desulfurization, magnetic material, chemical industry, water-coal-slurry, pellet, slag,
In the industry ball mill such as superfine powder, flyash, calcium carbonate, quartz sand.
Wear-resistant ball should have following property as a kind of lost material：(1) high hardness, the matrix of high rigidity can support
Wear-resistant grain is acted on the micro cutting of matrix, embodies the wearability of material to a certain extent；(2) higher plasticity and toughness, should
The germinating and extension of crackle can be reduced or suppress by becoming fatigue resistance, brittle failure drag and delamination fatigue resistance, high plasticity and toughness,
Particularly there is excellent Resisting fractre damage capability under the operating mode of HI high impact effect；(3) high quenching degree, the quenching degree of material
Height just can guarantee that under the conditions of large scale material global tissue is uniform, stable performance, and wearability must give guarantee.
The hardness and abrasion resistance of existing wear-resistant ball is not good enough, it is impossible to meet requirement of the modern society to wear-resistant ball, therefore, choosing
It is to study at present to select suitable composition, control the technical process prepared to obtain the strong wear-resistant ball of high rigidity, friction resistant, combination property
Hot issue.
The content of the invention
For above-mentioned problem, the present invention proposes a kind of wear-resistant ball of corrosion-resistant low abrasion and preparation method thereof,
Matched by rational element and process optimization, obtained wear-resistant ball comprehensive mechanical performance is strong, has excellent corrosion-resistant and resistance to
Mill property, service life improves more than 6 times compared to traditional high-chromium wear-resistant ball.
In order to realize above-mentioned purpose, the present invention uses following technical scheme：
A kind of wear-resistant ball of corrosion-resistant low abrasion, including following percentage composition alloying element：Carbon 2.1-2.8%, silicon 0.5-
0.8%th, manganese 1.8-2.2%, chromium 16-22%, nickel 1.8-2.1%, molybdenum 0.5-2%, vanadium 0.1-0.35%, tantalum 1.3-2.6%, it is remaining
Measure as iron and inevitable impurity.
Preferably, the wear-resistant ball of corrosion-resistant low abrasion, including following percentage composition alloying element：Carbon 2.1-2.6%, silicon
0.6-0.8%, manganese 1.8-2%, chromium 16-18%, nickel 1.8-2%, molybdenum 0.5-1.3%, vanadium 0.22-0.35%, tantalum 2.1-
2.6%, surplus is iron and inevitable impurity.
Preferably, the wear-resistant ball of corrosion-resistant low abrasion, including following percentage composition alloying element：Carbon 2.6%, silicon 0.5%,
Manganese 2%, chromium 16.5%, nickel 2%, molybdenum 1.5%, vanadium 0.2%, tantalum 2%, surplus are iron and inevitable impurity.
Preferably, in addition to copper powder 0-0.45%, niobium oxide powder 0.05-0.2%, zirconia powder 0.1-0.3%.
Preferably, the wear-resistant ball of corrosion-resistant low abrasion, preparation method are as follows：
1) pig iron, steel scrap, molybdenum-iron, ferronickel, ferromanganese are added in middle frequency furnace, is heated to 1500-1530 DEG C, melting
Ferrochrome, ferrosilicon, tantalum oxide are added thereto again afterwards, continues heating and is heated to melting, then adjusts temperature as 1450-1480 DEG C, is added
Enter vanadium iron and copper powder, refine 20-40min, then sequentially add deoxidier, deslagging agent, skimmed after standing 3-5min；
2) mixed oxidization metal powder is blended to obtain in niobium oxide powder, zirconia powder, takes part mixed oxidization metal powder to be placed in bag
Bottom, treat that molten iron is cooled to 1380-1400 DEG C and poured into ladle, and add remaining mixed oxidization metal powder with stream and breed in right amount
Agent, then the molten iron in ladle is cast；
3) casting product is taken out in die sinking, carries out aging strengthening model, obtains wear-resistant ball finished product.
Preferably, first raw material in stove is preheated before being heated to 1500-1530 DEG C in step 1), specially pre-add
Hot to 900-920 DEG C DEG C insulation 1-2h.
Preferably, mixed oxidization metal powder adds at twice in step 2), and it is 1 to add mass ratio twice：0.8-1.2.
Preferably, inovulant uses rare earth inovulant in step 2), and addition is the 1-1.2% of molten steel quality.
Preferably, first mould is preheated before step 2) casting, preheating temperature is 750-800 DEG C, molten iron injection molding matched moulds
20-30s is tapped to mould afterwards.
Preferably, aging strengthening model is specially first heated to 950-1000 DEG C in step 3), is incubated 1-2h, then with 2 DEG C/
Min is warming up to 1050-1060 DEG C, is incubated 30min, then is cooled to 850-900 DEG C with 1.5 DEG C/min, is incubated 0.5-1h, Ran Houkong
It is cooled to room temperature, then 380-400 DEG C of tempering insulation 2h.
Due to using above-mentioned technical scheme, the beneficial effects of the invention are as follows：The present invention by rational element proportioning and
Process optimization, obtained wear-resistant ball comprehensive mechanical performance is strong, has excellent corrosion-resistant and wearability, service life is compared to biography
The high-chromium wear-resistant ball of system improves more than 6 times.
Silicon has excellent deoxidizing capacity, and is advantageous to improve bulk temperature after heating, and coordinates tantalum oxide together to add, has
Effect promotes the melting rheological characteristic of tantalum element, and corrosion resistant effect is good, and silicon can generate compatibility product with chromium, molybdenum, nickel, except molybdenum, chromium,
The reinforcing efficiency external enwergy of nickel in itself effectively improves calorific intensity, is finally again added thereto vanadium, copper, further raising molten iron flow
Property, the deoxidation for being advantageous to then carry out removes Slag treatment, and vanadium has very strong affinity to oxygen, coordinates deoxidier, significantly improves
Deoxidation degasifying effect, improves the compactness of fine grained texture, obdurability, can process moulding, impulse fatigue resistance be respectively provided with it is bright
Aobvious lifting.Coordinate copper powder with the niobium oxide of molten iron addition, zirconium oxide mixed powder, there is good against corrosion, acid-resisting, and niobium
Generation FeNb intermetallic compounds can be reacted with molten iron, finished product age-hardening is may advantageously facilitate, improves the abrasion resistant effect of casting.
Present invention process is simple, easy to operate, and distribution, effect balancing between obtained wear-resistant ball each element, institutional framework cause
Close uniformly the metallurgical transformation degree of balance is high, and average hardness is less than 25mg/kg up to 62.5HRC, abrasion loss, and impact flexibility is more than
25J/cm3, ball falling impact fatigue life is more than 16000 times.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described.Based on embodiments of the invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
Embodiment 1：
A kind of wear-resistant ball of corrosion-resistant low abrasion, it is characterised in that including following percentage composition alloying element：Carbon 2.6%,
Silicon 0.5%, manganese 2%, chromium 16.5%, nickel 2%, molybdenum 1.5%, vanadium 0.2%, tantalum 2%, surplus are iron and inevitable impurity.
Also include copper powder 0.45%, niobium oxide powder 0.15%, zirconia powder 0.12%.
The wear-resistant ball of corrosion-resistant low abrasion, preparation method are as follows：
1) pig iron, steel scrap, molybdenum-iron, ferronickel, ferromanganese are added in middle frequency furnace, 920 DEG C first is preheated to raw material in stove
DEG C insulation 1h, reheating be warming up to 1520 DEG C, ferrochrome, ferrosilicon, tantalum oxide are added thereto again after melting, continues heating and is heated to
Melting, then temperature is adjusted as 1450 DEG C, vanadium iron and copper powder are added, 40min is refined, then sequentially adds deoxidier, deslagging agent, it is quiet
Skimmed after putting 3-5min；
2) mixed oxidization metal powder is blended to obtain in niobium oxide powder, zirconia powder, takes part mixed oxidization metal powder to be placed in bag
Bottom, treat that molten iron is cooled to 1380 DEG C and poured into ladle, and remaining mixed oxidization metal powder and appropriate inovulant are added with stream, so
The molten iron in ladle is cast afterwards；Wherein, mixed oxidization metal powder adds at twice, and it is 1 to add mass ratio twice：1, it is pregnant
Educate agent and use rare earth inovulant, addition is the 1% of molten steel quality；First mould is preheated before casting, preheating temperature 760
DEG C, 20-30s is tapped to mould after molten iron injection molding matched moulds；
3) casting product is taken out in die sinking, carries out aging strengthening model, is specially first heated to 950 DEG C, 2h is incubated, then with 2
DEG C/min is warming up to 1050 DEG C, 30min is incubated, then 880 DEG C are cooled to 1.5 DEG C/min, 0.8h is incubated, is then air-cooled to room
Temperature, then 380 DEG C of tempering insulation 2h, obtain wear-resistant ball finished product.
Embodiment 2：
A kind of wear-resistant ball of corrosion-resistant low abrasion, it is characterised in that including following percentage composition alloying element：Carbon 2.1%,
Silicon 0.65%, manganese 2.1%, chromium 16%, nickel 1.8%, molybdenum 0.5%, vanadium 0.22%, tantalum 1.3%, surplus is for iron and inevitably
Impurity.
Also include copper powder 0.3%, niobium oxide powder 0.2%, zirconia powder 0.1%.
The wear-resistant ball of corrosion-resistant low abrasion, preparation method are as follows：
1) pig iron, steel scrap, molybdenum-iron, ferronickel, ferromanganese are added in middle frequency furnace, 900 DEG C first is preheated to raw material in stove
DEG C insulation 2h, reheating be warming up to 1500 DEG C, ferrochrome, ferrosilicon, tantalum oxide are added thereto again after melting, continues heating and is heated to
Melting, then temperature is adjusted as 1480 DEG C, vanadium iron and copper powder are added, 30min is refined, then sequentially adds deoxidier, deslagging agent, it is quiet
Skimmed after putting 3-5min；
2) mixed oxidization metal powder is blended to obtain in niobium oxide powder, zirconia powder, takes part mixed oxidization metal powder to be placed in bag
Bottom, treat that molten iron is cooled to 1400 DEG C and poured into ladle, and remaining mixed oxidization metal powder and appropriate inovulant are added with stream, so
The molten iron in ladle is cast afterwards；Wherein, mixed oxidization metal powder adds at twice, and it is 1 to add mass ratio twice：1.2
Inovulant uses rare earth inovulant, and addition is the 1.2% of molten steel quality；First mould is preheated before casting, preheating temperature
For 750 DEG C, 20-30s is tapped to mould after molten iron injection molding matched moulds；
3) casting product is taken out in die sinking, carries out aging strengthening model, is specially first heated to 950 DEG C, 2h is incubated, then with 2
DEG C/min is warming up to 1060 DEG C, 30min is incubated, then 900 DEG C are cooled to 1.5 DEG C/min, 1h is incubated, is then air-cooled to room temperature,
400 DEG C of tempering insulation 2h again, obtain wear-resistant ball finished product.
Embodiment 3：
A kind of wear-resistant ball of corrosion-resistant low abrasion, it is characterised in that including following percentage composition alloying element：Carbon 2.5%,
Silicon 0.6%, manganese 2.2%, chromium 17.5%, nickel 2.1%, molybdenum 1.3%, vanadium 0.15%, tantalum 2.1%, surplus is for iron and unavoidably
Impurity.
Also include copper powder 0.2%, niobium oxide powder 0.1%, zirconia powder 0.25%.
The wear-resistant ball of corrosion-resistant low abrasion, preparation method are as follows：
1) pig iron, steel scrap, molybdenum-iron, ferronickel, ferromanganese are added in middle frequency furnace, 910 DEG C first is preheated to raw material in stove
DEG C insulation 2h, reheating be warming up to 1530 DEG C, ferrochrome, ferrosilicon, tantalum oxide are added thereto again after melting, continues heating and is heated to
Melting, then temperature is adjusted as 1460 DEG C, vanadium iron and copper powder are added, 20min is refined, then sequentially adds deoxidier, deslagging agent, it is quiet
Skimmed after putting 3-5min；
2) mixed oxidization metal powder is blended to obtain in niobium oxide powder, zirconia powder, takes part mixed oxidization metal powder to be placed in bag
Bottom, treat that molten iron is cooled to 1380 DEG C and poured into ladle, and remaining mixed oxidization metal powder and appropriate inovulant are added with stream, so
The molten iron in ladle is cast afterwards；Wherein, mixed oxidization metal powder adds at twice, and it is 1 to add mass ratio twice：1, it is pregnant
Educate agent and use rare earth inovulant, addition is the 1.2% of molten steel quality；First mould is preheated before casting, preheating temperature is
750 DEG C, 20-30s is tapped to mould after molten iron injection molding matched moulds；
3) casting product is taken out in die sinking, carries out aging strengthening model, is specially first heated to 1000 DEG C, is incubated 1.5h, then
1050 DEG C are warming up to 2 DEG C/min, is incubated 30min, then 850 DEG C are cooled to 1.5 DEG C/min, 1h is incubated, is then air-cooled to room
Temperature, then 300 DEG C of tempering insulation 2h, obtain wear-resistant ball finished product.
Embodiment 4：
A kind of wear-resistant ball of corrosion-resistant low abrasion, it is characterised in that including following percentage composition alloying element：Carbon 2.4%,
Silicon 0.5%, manganese 1.8%, chromium 18%, nickel 1.8%, molybdenum 2%, vanadium 0.1%, tantalum 1.5%, surplus be iron and inevitably it is miscellaneous
Matter.
Also include copper powder 0%, niobium oxide powder 0.1%, zirconia powder 0.3%.
The wear-resistant ball of corrosion-resistant low abrasion, preparation method are as follows：
1) pig iron, steel scrap, molybdenum-iron, ferronickel, ferromanganese are added in middle frequency furnace, 900 DEG C first is preheated to raw material in stove
DEG C insulation 1h, reheating be warming up to 1500 DEG C, ferrochrome, ferrosilicon, tantalum oxide are added thereto again after melting, continues heating and is heated to
Melting, then temperature is adjusted as 1450 DEG C, vanadium iron and copper powder are added, 40min is refined, then sequentially adds deoxidier, deslagging agent, it is quiet
Skimmed after putting 3-5min；
2) mixed oxidization metal powder is blended to obtain in niobium oxide powder, zirconia powder, takes part mixed oxidization metal powder to be placed in bag
Bottom, treat that molten iron is cooled to 1400 DEG C and poured into ladle, and remaining mixed oxidization metal powder and appropriate inovulant are added with stream, so
The molten iron in ladle is cast afterwards；Wherein, mixed oxidization metal powder adds at twice, and it is 1 to add mass ratio twice：0.8,
Inovulant uses rare earth inovulant, and addition is the 1% of molten steel quality；First mould is preheated before casting, preheating temperature is
800 DEG C, 20-30s is tapped to mould after molten iron injection molding matched moulds；
3) casting product is taken out in die sinking, carries out aging strengthening model, is specially first heated to 950 DEG C, 1h is incubated, then with 2
DEG C/min is warming up to 1060 DEG C, 30min is incubated, then 850 DEG C are cooled to 1.5 DEG C/min, 0.5h is incubated, is then air-cooled to room
Temperature, then 380 DEG C of tempering insulation 2h, obtain wear-resistant ball finished product.
Embodiment 5：
A kind of wear-resistant ball of corrosion-resistant low abrasion, it is characterised in that including following percentage composition alloying element：Carbon 2.8%,
Silicon 0.7%, manganese 2.2%, chromium 20%, nickel 2%, molybdenum 1%, vanadium 0.35%, tantalum 2.6%, surplus are iron and inevitable impurity.
Also include copper powder 0%, niobium oxide powder 0.2%, zirconia powder 0.2%.
The wear-resistant ball of corrosion-resistant low abrasion, preparation method are as follows：
1) pig iron, steel scrap, molybdenum-iron, ferronickel, ferromanganese are added in middle frequency furnace, 900 DEG C first is preheated to raw material in stove
DEG C insulation 2h, reheating be warming up to 1530 DEG C, ferrochrome, ferrosilicon, tantalum oxide are added thereto again after melting, continues heating and is heated to
Melting, then temperature is adjusted as 1480 DEG C, vanadium iron and copper powder are added, 40min is refined, then sequentially adds deoxidier, deslagging agent, it is quiet
Skimmed after putting 3-5min；
2) mixed oxidization metal powder is blended to obtain in niobium oxide powder, zirconia powder, takes part mixed oxidization metal powder to be placed in bag
Bottom, treat that molten iron is cooled to 1400 DEG C and poured into ladle, and remaining mixed oxidization metal powder and appropriate inovulant are added with stream, so
The molten iron in ladle is cast afterwards；Wherein, mixed oxidization metal powder adds at twice, and it is 1 to add mass ratio twice：1.2
Inovulant uses rare earth inovulant, and addition is the 1.2% of molten steel quality；First mould is preheated before casting, preheating temperature
For 800 DEG C, 20-30s is tapped to mould after molten iron injection molding matched moulds；
3) casting product is taken out in die sinking, carries out aging strengthening model, is specially first heated to 960 DEG C, 2h is incubated, then with 2
DEG C/min is warming up to 1060 DEG C, 30min is incubated, then 900 DEG C are cooled to 1.5 DEG C/min, 1h is incubated, is then air-cooled to room temperature,
380 DEG C of tempering insulation 2h again, obtain wear-resistant ball finished product.
Embodiment 6：
A kind of wear-resistant ball of corrosion-resistant low abrasion, it is characterised in that including following percentage composition alloying element：Carbon 2.6%,
Silicon 0.8%, manganese 1.8%, chromium 22%, nickel 2.1%, molybdenum 1.5%, vanadium 0.3%, tantalum 2.2%, surplus be iron and inevitably it is miscellaneous
Matter.
Also include copper powder 0.3%, niobium oxide powder 0.15%, zirconia powder 0.2%.
The wear-resistant ball of corrosion-resistant low abrasion, preparation method are as follows：
1) pig iron, steel scrap, molybdenum-iron, ferronickel, ferromanganese are added in middle frequency furnace, 910 DEG C first is preheated to raw material in stove
DEG C insulation 1h, reheating be warming up to 1500 DEG C, ferrochrome, ferrosilicon, tantalum oxide are added thereto again after melting, continues heating and is heated to
Melting, then temperature is adjusted as 1450 DEG C, vanadium iron and copper powder are added, 30min is refined, then sequentially adds deoxidier, deslagging agent, it is quiet
Skimmed after putting 3-5min；
2) mixed oxidization metal powder is blended to obtain in niobium oxide powder, zirconia powder, takes part mixed oxidization metal powder to be placed in bag
Bottom, treat that molten iron is cooled to 1380 DEG C and poured into ladle, and remaining mixed oxidization metal powder and appropriate inovulant are added with stream, so
The molten iron in ladle is cast afterwards；Wherein, mixed oxidization metal powder adds at twice, and it is 1 to add mass ratio twice：0.8,
Inovulant uses rare earth inovulant, and addition is the 1.2% of molten steel quality；First mould is preheated before casting, preheating temperature
For 780 DEG C, 20-30s is tapped to mould after molten iron injection molding matched moulds；
3) casting product is taken out in die sinking, carries out aging strengthening model, is specially first heated to 950 DEG C, 2h is incubated, then with 2
DEG C/min is warming up to 1050 DEG C, 30min is incubated, then 900 DEG C are cooled to 1.5 DEG C/min, 0.5h is incubated, is then air-cooled to room
Temperature, then 380 DEG C of tempering insulation 2h, obtain wear-resistant ball finished product.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of wear-resistant ball of corrosion-resistant low abrasion, it is characterised in that including following percentage composition alloying element：Carbon 2.1-
2.8%th, silicon 0.5-0.8%, manganese 1.8-2.2%, chromium 16-22%, nickel 1.8-2.1%, molybdenum 0.5-2%, vanadium 0.1-0.35%, tantalum
1.3-2.6%, surplus are iron and inevitable impurity.
2. the wear-resistant ball of corrosion-resistant low abrasion according to claim 1, it is characterised in that including following percentage composition alloy
Element：Carbon 2.1-2.6%, silicon 0.6-0.8%, manganese 1.8-2%, chromium 16-18%, nickel 1.8-2%, molybdenum 0.5-1.3%, vanadium
0.22-0.35%, tantalum 2.1-2.6%, surplus are iron and inevitable impurity.
3. the wear-resistant ball of corrosion-resistant low abrasion according to claim 1, it is characterised in that including following percentage composition alloy
Element：Carbon 2.6%, silicon 0.5%, manganese 2%, chromium 16.5%, nickel 2%, molybdenum 1.5%, vanadium 0.2%, tantalum 2%, surplus is for iron and not
Evitable impurity.
4. the wear-resistant ball of the corrosion-resistant low abrasion according to claim any one of 1-3, it is characterised in that：Also include copper powder 0-
0.45%th, niobium oxide powder 0.05-0.2%, zirconia powder 0.1-0.3%.
5. the wear-resistant ball of corrosion-resistant low abrasion according to claim 4, it is characterised in that preparation method is as follows：
1) pig iron, steel scrap, molybdenum-iron, ferronickel, ferromanganese are added in middle frequency furnace, is heated to 1500-1530 DEG C, after melting again
Ferrochrome, ferrosilicon, tantalum oxide are added thereto, continues heating and is heated to melting, then adjusts temperature as 1450-1480 DEG C, adds vanadium
Iron and copper powder, 20-40min is refined, then sequentially add deoxidier, deslagging agent, skimmed after standing 3-5min；
2) mixed oxidization metal powder is blended to obtain in niobium oxide powder, zirconia powder, takes part mixed oxidization metal powder to be placed in bag bottom, treat
Molten iron is cooled to 1380-1400 DEG C and poured into ladle, and adds remaining mixed oxidization metal powder and appropriate inovulant with stream, so
The molten iron in ladle is cast afterwards；
3) casting product is taken out in die sinking, carries out aging strengthening model, obtains wear-resistant ball finished product.
6. the wear-resistant ball of corrosion-resistant low abrasion according to claim 5, it is characterised in that：It is heated in step 1)
First raw material in stove is preheated before 1500-1530 DEG C, is specially preheated to 900-920 DEG C DEG C of insulation 1-2h.
7. the wear-resistant ball of corrosion-resistant low abrasion according to claim 5, it is characterised in that：Mixed oxidization metal in step 2)
Powder adds at twice, and it is 1 to add mass ratio twice：0.8-1.2.
8. the wear-resistant ball of corrosion-resistant low abrasion according to claim 5, it is characterised in that：Inovulant is using dilute in step 2)
Native inovulant, addition are the 1-1.2% of molten steel quality.
9. the wear-resistant ball of corrosion-resistant low abrasion according to claim 5, it is characterised in that：First to mould before step 2) casting
Preheated, preheating temperature is 750-800 DEG C, and 20-30s is tapped to mould after molten iron injection molding matched moulds.
10. the wear-resistant ball of corrosion-resistant low abrasion according to claim 5, it is characterised in that：Aging strengthening model in step 3)
950-1000 DEG C is specially first heated to, is incubated 1-2h, is then warming up to 1050-1060 DEG C with 2 DEG C/min, is incubated 30min, then
850-900 DEG C is cooled to 1.5 DEG C/min, is incubated 0.5-1h, is then air-cooled to room temperature, then 380-400 DEG C of tempering insulation 2h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995945.5A CN107747031A (en) | 2017-10-23 | 2017-10-23 | A kind of wear-resistant ball of corrosion-resistant low abrasion and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995945.5A CN107747031A (en) | 2017-10-23 | 2017-10-23 | A kind of wear-resistant ball of corrosion-resistant low abrasion and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107747031A true CN107747031A (en) | 2018-03-02 |
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| CN201710995945.5A Pending CN107747031A (en) | 2017-10-23 | 2017-10-23 | A kind of wear-resistant ball of corrosion-resistant low abrasion and preparation method thereof |
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| CN108655347A (en) * | 2018-06-23 | 2018-10-16 | 新疆闽龙耐磨材料有限公司 | A kind of low production method for wearing away wear-resistant ball of high intensity |
| CN108842041A (en) * | 2018-07-13 | 2018-11-20 | 宁国市正兴耐磨材料有限公司 | A kind of multi-layer wear-resistant ball and preparation method thereof can be used for grinding strong oxidizing property material |
| CN109666858A (en) * | 2019-02-28 | 2019-04-23 | 浙江华业塑料机械有限公司 | A kind of iron(-)base powder of machine barrel wearing layer |
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| CN108655347A (en) * | 2018-06-23 | 2018-10-16 | 新疆闽龙耐磨材料有限公司 | A kind of low production method for wearing away wear-resistant ball of high intensity |
| CN108842041A (en) * | 2018-07-13 | 2018-11-20 | 宁国市正兴耐磨材料有限公司 | A kind of multi-layer wear-resistant ball and preparation method thereof can be used for grinding strong oxidizing property material |
| CN109666858A (en) * | 2019-02-28 | 2019-04-23 | 浙江华业塑料机械有限公司 | A kind of iron(-)base powder of machine barrel wearing layer |
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Application publication date: 20180302 |