CN104087867B - A kind of ball mill high abrasion antioxidant wear-resistant ball - Google Patents
A kind of ball mill high abrasion antioxidant wear-resistant ball Download PDFInfo
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- CN104087867B CN104087867B CN201410376984.3A CN201410376984A CN104087867B CN 104087867 B CN104087867 B CN 104087867B CN 201410376984 A CN201410376984 A CN 201410376984A CN 104087867 B CN104087867 B CN 104087867B
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- 238000005299 abrasion Methods 0.000 title claims abstract description 37
- 239000003963 antioxidant agent Substances 0.000 title claims abstract description 37
- 230000003078 antioxidant effect Effects 0.000 title claims abstract description 37
- 238000005253 cladding Methods 0.000 claims abstract description 65
- 238000000034 method Methods 0.000 claims abstract description 54
- 230000008569 process Effects 0.000 claims abstract description 41
- 230000008018 melting Effects 0.000 claims abstract description 29
- 238000002844 melting Methods 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 23
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 22
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 11
- 229910052786 argon Inorganic materials 0.000 claims abstract description 11
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 10
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 10
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 10
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 9
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 30
- 238000010791 quenching Methods 0.000 claims description 26
- 230000000171 quenching effect Effects 0.000 claims description 26
- 230000000630 rising effect Effects 0.000 claims description 26
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 229910045601 alloy Inorganic materials 0.000 claims description 21
- 239000000956 alloy Substances 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000005121 nitriding Methods 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 18
- 239000008187 granular material Substances 0.000 claims description 18
- 238000009413 insulation Methods 0.000 claims description 18
- 230000033228 biological regulation Effects 0.000 claims description 16
- 238000005496 tempering Methods 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000470 constituent Substances 0.000 claims description 12
- 238000004372 laser cladding Methods 0.000 claims description 10
- 238000001291 vacuum drying Methods 0.000 claims description 10
- 238000000498 ball milling Methods 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000010955 niobium Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 6
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 6
- 229910000592 Ferroniobium Inorganic materials 0.000 claims description 6
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 6
- 108010038629 Molybdoferredoxin Proteins 0.000 claims description 6
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 6
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims description 6
- OSMSIOKMMFKNIL-UHFFFAOYSA-N calcium;silicon Chemical compound [Ca]=[Si] OSMSIOKMMFKNIL-UHFFFAOYSA-N 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 6
- 238000010849 ion bombardment Methods 0.000 claims description 6
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 6
- ZFGFKQDDQUAJQP-UHFFFAOYSA-N iron niobium Chemical compound [Fe].[Fe].[Nb] ZFGFKQDDQUAJQP-UHFFFAOYSA-N 0.000 claims description 6
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims description 6
- 238000007781 pre-processing Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 238000005488 sandblasting Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 229940098458 powder spray Drugs 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 238000010309 melting process Methods 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 239000013078 crystal Substances 0.000 description 8
- 239000011575 calcium Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 150000004767 nitrides Chemical class 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000003026 anti-oxygenic effect Effects 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N chromium(III) oxide Inorganic materials O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000005324 grain boundary diffusion Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
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Abstract
The invention discloses a kind of ball mill high abrasion antioxidant wear-resistant ball, its composition includes: C, Mn, Si, Ni, Cr, Mo, V, Nb, Ca, Zr, Cu, S, P, surplus are Fe and inevitable impurity；Using laser melting coating and the nitridation process modifying surface to wear-resistant ball, cladding powder includes: Mn, Cr, Si, Al2O3, Al, Co, Fe, nano Ce O2, melting and coating process is: single-channel scanning, argon shield laser cell, and power is 1.5 2.0KW, a diameter of 0.2 0.7mm of tabula rasa, and cladding speed is 2 4mm/s；The parameter of nitridation process is: glow voltage: 0.2 0.58KV, dutycycle: 35 45%, ammonia flow: 0.05 0.08m3/ h, furnace pressure: 220 250Pa, temperature: 400 450 DEG C, the time: 3 5h.Wear-resistant ball of the present invention has non-oxidizability, wearability and the toughness of excellence.
Description
Technical field
The present invention relates to high-abrasive material technical field, particularly relate to a kind of ball mill high abrasion antioxidant wear-resistant
Ball.
Background technology
Wear-resistant ball is a kind of crushing medium in ball mill, the material in crushing mill, the most
Be widely used in metallurgical mine, cement building material, thermal power generation, flue gas desulfurization, magnetic material, chemical industry,
In the industry ball mills such as water-coal-slurry, pellet, slag, superfine powder, flyash, calcium carbonate, quartz sand.
Wear-resistant ball should have following character as a kind of lost material: the hardness that (1) is high, the base of high rigidity
Body can resist the abrasive particle micro cutting effect to matrix, embodies the wearability of material to a certain extent；
(2) higher plasticity and toughness, strain fatigue drag, brittle failure drag and delamination fatigue resistance, high plasticity and toughness can
To reduce or to suppress germinating and the extension of crackle, particularly there is under the operating mode of HI high impact effect excellence
Resisting fractre damage capability；(3) high quenching degree, the quenching degree height guarantee of material is under the conditions of large scale
Material global tissue is uniform, stable performance, and wearability must give guarantee.
Laser melting coating refers to place selected coating material on by cladding matrix surface with different adding material modes
Material is allowed to melt with matrix surface a thin layer through laser irradiation simultaneously, and it is extremely low to form dilution factor after rapid solidification,
Become the face coat of metallurgical binding with matrix, significantly improve wear-resisting, anti-corrosion, heat-resisting, the antioxygen of substrate surface
Change and the process of electrical characteristic, thus reach the purpose of surface modification or reparation, both met material
The requirement of surface particular characteristic, has saved again substantial amounts of noble element, applies and can improve in wear-resistant ball field
Wear-resisting, anti-corrosion, heat-resisting, the non-oxidizability of wear-resistant ball.
Nitriding is to make nitrogen-atoms penetrate into the thermo-chemical treatment work of workpiece surface in certain medium at a certain temperature
Skill.Common have liquid nitriding, gas nitriding, glow discharge nitriding.Conventional is gas nitriding and glow discharge nitriding.
Penetrate into the nitrogen in steel and on the one hand from outward appearance to inner essence form the nitrided iron of different nitrogen content from iron, on the one hand with in steel
Alloying element combines and forms various alloy nitrides, these nitride have the highest hardness, heat endurance and
The highest spread, thus can make the steel part after nitriding obtain high case hardness, wearability, fatigue strength,
Seizure resistance, anti-air and superheated steam corrosive power, anti-temper softening ability, and reduce notch sensitivity.
Apply and can improve the case hardness of wear-resistant ball, wearability, fatigue strength in wear-resistant ball, improve wear-resistant ball
Performance.
The non-oxidizability of existing wear-resistant ball is not good enough, it is impossible to meet modern society's requirement to wear-resistant ball, therefore, choosing
The technical process select suitable composition, controlling to prepare obtains the wear-resistant ball that antioxygenic property is good, combination property is strong
It it is the hot issue of research at present.
Summary of the invention
The present invention proposes a kind of ball mill high abrasion antioxidant wear-resistant ball, and this wear-resistant ball has the anti-of excellence
Oxidisability, has good wearability, hardness and impact flexibility simultaneously.
The present invention proposes a kind of ball mill high abrasion antioxidant wear-resistant ball, and its constituent presses mass fraction
Including: C:1.3-2.0%, Mn:0.12-0.46%, Si:0.53-0.81%, Ni:0.21-0.45%, Cr:4.2-5.95%,
Mo:1.1-1.5%, V:0.7-1.0%, Nb:0.2-0.5%, Ca:0.01-0.038%, Zr:0.01-0.015%,
Cu:0.01-0.03%, S≤0.028%, P≤0.033%, surplus is Fe and inevitable impurity；
According to above-mentioned constituent proportioning, ball mill high abrasion antioxidant wear-resistant ball is carried out according to following technique
Preparation:
S1, melting: steel scrap is joined in medium frequency induction melting furnace, and it is heated to 1500-1520 DEG C, insulation
Add ferrochrome, molybdenum-iron, vanadium iron, ferro-niobium after 20-45min, add ferrosilicon and ferromanganese until completely melted, rise
Temperature adds nickel alloy, calcium-silicon, ferrozirconium after being heated to being completely melt to 1530-1570 DEG C, and each raw material is complete
Fusing obtains molten steel after skimming, and cast, die sinking after molten steel solidifies completely, stove is cooled to room temperature and obtains wear-resistant ball
Base；
S2, heat treatment: the wear-resistant ball base obtained in S1 is sequentially passed through normalizing, quenching and high tempering and processes；
In normalized treatment, temperature rising to 980-1030 DEG C, be incubated 50-80min, air cooling is to room temperature；In quenching
In process, temperature rising to 800-820 DEG C, be incubated 30-75min, water-cooled is to room temperature；At high tempering
In reason, temperature rising to 500-530 DEG C, be incubated 130-150min, water-cooled is to room temperature, thus obtains at heat
Reason ball base；
S3, heat treatment ball base pretreatment: after the heat treatment ball base sandblasting that will obtain in S2, after washing with acetone
Polish with abrasive paper for metallograph, again with washes of absolute alcohol after cleaning with acetone, be positioned in vacuum drying chamber,
The temperature of regulation drying box is 55-75 DEG C, obtains pre-processing ball base after insulation 3-4h；
Pre-process before S4, cladding: in alloy powder, add 1-3wt% nano Ce O2After put into ball mill ball
Mill 3-5h, puts into vacuum drying chamber afterwards, and the temperature of regulation drying box is 50-85 DEG C, and insulation 3-5h obtains
Composite granule；Composite granule is sprayed on the surface of pretreatment ball base with plasma, and thickness is 0.1-0.2mm
Ball base is pre-processed before obtaining cladding；Described alloy powder includes by weight: the Mn of 10-15 part, 5-10
The Al of Si, 0.5-1.3 part of Cr, 1-3 part of part2O3, Co, 75-82 part of Al, 1-2 part of 2-3 part
Fe；
S5, cladding: before the cladding that will obtain in S4, pretreatment ball base is put into and carried out laser in laser cladding equipment
Cladding, obtains cladding wear-resistant ball after cooling；Wherein the technological parameter of laser melting coating is as follows: single-channel scanning, uses
Argon shield laser cell, laser power is set to 1.5-2.0KW, a diameter of 0.2-0.7mm of tabula rasa, cladding speed
Degree is 2-4mm/s；
S6, nitriding: put in Double-heating multi-functional ion-bombardment by the cladding wear-resistant ball obtained in S5
Row nitridation process obtains described wear-resistant ball, and the parameter of described nitridation process is specific as follows: glow voltage:
0.2-0.58KV, dutycycle: 35-45%, ammonia flow: 0.05-0.08m3/ h, furnace pressure: 220-250Pa,
Temperature: 400-450 DEG C, time: 3-5h.
Preferably, above-mentioned ball mill high abrasion antioxidant wear-resistant ball, its constituent is included by mass fraction:
C:1.5%, Mn:0.35%, Si:0.73%, Ni:0.42%, Cr:5.56%, Mo:1.36%, V:0.79%,
Nb:0.36%, Ca:0.026%, Zr:0.014%, Cu:0.02%, S:0.02%, P:0.031%, surplus is
Fe and inevitable impurity.
Preferably, in S2, in normalized treatment, during temperature is risen to 980-1030 DEG C, heat up
Speed reduces with the rising of temperature.
Preferably, in S2, in Quenching Treatment, temperature is risen to 800-820 DEG C, is incubated 30-75min,
Water-cooled is to during room temperature, and cooling velocity reduces with the reduction of temperature
Preferably, in S2, in normalized treatment, temperature is risen to 1015 DEG C, be incubated 66min, air cooling
To room temperature；In Quenching Treatment, temperature rising to 815 DEG C, be incubated 63min, water-cooled is to room temperature；At high temperature
In drawing process, temperature rising to 521 DEG C, be incubated 138min, water-cooled is to room temperature.
Preferably, in S4, alloy powder adds 2wt% nano Ce O2After put into ball mill ball milling
4h, puts into vacuum drying chamber afterwards, and the temperature of regulation drying box is 80 DEG C, and insulation 4h obtains composite granule；
Composite granule is sprayed on the surface of pretreatment ball base with plasma, and thickness is pre-before 0.15mm obtains cladding
Process ball base；Described alloy powder includes by weight: the Mn of 14 parts, the Cr of 8 parts, the Si of 2.5 parts,
The Al of 1.0 parts2O3, the Al of 2.2 parts, the Co of 1.3 parts, the Fe of 78 parts.
Preferably, in S5, the technological parameter of laser melting coating is as follows: single-channel scanning, uses argon shield laser
Pond, laser power is set to 1.7KW, a diameter of 0.5mm of tabula rasa, and cladding speed is 4mm/s.
Preferably, in S6, the parameter of described nitridation process is specific as follows: glow voltage: 0.5KV, accounts for
Empty ratio: 40%, ammonia flow: 0.06m3/ h, furnace pressure: 235Pa, temperature: 440 DEG C, time: 4h.
In ball mill high abrasion antioxidant wear-resistant ball Technology for Heating Processing of the present invention, first carry out at normalizing
Reason, has refined crystal grain, has made microstructure homogenization simultaneously, eliminated dendritic structure and overheated structure, eliminate
The internal stress of wear-resistant ball, it is provided that the hardness of wear-resistant ball；Quenching technical, the mistake of quenching cooling are carried out afterwards
Cheng Zhong, lowers the temperature the initial stage, carries out fast cooling in the scope that overcooling austenite is the most stable, use reduction afterwards
Rate of temperature fall, it is ensured that obtain and reduce the internal stress in wear-resistant ball while martensite, prevent deformation and cracking；
Carry out high tempering after quenching, the residual stress produced when eliminating wear-resistant ball quenching, reduces fragility, improves
Its toughness, prevents its deformation and cracking.
In the preparation technology of ball mill high abrasion antioxidant wear-resistant ball of the present invention, have employed laser melting coating
With two kinds of techniques of nitriding, wear-resistant ball is carried out surface modification treatment.During laser melting coating, used multiple
Close in powder and with the addition of nano Ce O2, on the one hand, nano Ce O2Under the stirring action in molten bath, uniformly,
Being distributed in the liquid metal that cladding is formed of disperse, as the core of heterogeneous nucleation, is greatly improved
Liquid metal nucleation rate；On the one hand, nano Ce O2There is big specific surface area, be attached to liquid-solid boundary forward position,
Hinder the crystal growth after forming core, refine laser cladding layer tissue；On the one hand, nano Ce O is added2
After, change the institutional framework of cladding layer, refined crystal grain, decrease the internal crystal boundary of microstructure of surface cladding layer and occur
A large amount of precipitates；On the other hand, under conditions of high temperature, nano Ce O2Can accelerate in microstructure of surface cladding layer
The selective oxidation of Cr element, effectively inhibits Cr2O3Volatilization, improve microstructure of surface cladding layer with wear-resisting
The tack of ball, in cladding layer, the refinement of crystal grain is conducive to thermal stress and the release of growth stress, improves molten
The anti-strip ability of coating, at high temperature decreases the internal oxidition of wear-resistant ball, enhances the high temperature resistant of wear-resistant ball
Property.
The preparation technology of ball mill high abrasion antioxidant wear-resistant ball of the present invention have employed nitridation process pair
Wear-resistant ball after laser melting coating has carried out surface process, after nitriding laser cladding layer crystal grain refinement, crystal boundary and
Dislocation increases, and the formation for nitride provides extra driving force, reduces and nitrogenizes the standard formed mutually certainly
By energy, so that laser cladding layer forms nitride in the temperature rise period of nitriding, add the degree of depth of nitriding,
During nitriding, the activation energy needed for atom N grain boundary diffusion is relatively low, and the crystal boundary of laser cladding layer is
The diffusion of atom N provides more diffusion admittance, improves the diffusion velocity of atom N, has nitriding
Certain catalytic action so as to get coating structure fine and close, internal flawless and hole, be combined with wear-resistant ball
Well, improve the non-oxidizability of wear-resistant ball, improve the impact resistance of wear-resistant ball, heat resistance and hard simultaneously
Degree.
In ball mill high abrasion antioxidant wear-resistant ball of the present invention, by selecting suitable raw material and proportioning,
Optimize Technology for Heating Processing, and use laser melting coating and nitridation process that the surface of wear-resistant ball has been carried out modification,
Arrive the ball mill high abrasion antioxidant wear-resistant ball of good combination property.
Detailed description of the invention
Below by specific embodiment, technical scheme is described in detail, it should be appreciated that implement
Example is served only for the present invention being described rather than for limiting the invention, any institute on the basis of the present invention
The amendment made, equivalent etc. are the most within the scope of the present invention.
Embodiment 1
Ball mill high abrasion antioxidant wear-resistant ball of the present invention, its constituent is included by mass fraction:
C:1.3%, Mn:0.33%, Si:0.53%, Ni:0.32%, Cr:4.2%, Mo:1.3%, V:1.0%, Nb:0.3%,
Ca:0.038%, Zr:0.013%, Cu:0.03%, S:0.022%, P:0.031%, surplus is Fe and can not
The impurity avoided；
According to above-mentioned constituent proportioning, ball mill high abrasion antioxidant wear-resistant ball is carried out according to following technique
Preparation:
S1, melting: steel scrap is joined in medium frequency induction melting furnace, and it is heated to 1520 DEG C, it is incubated 20min
Rear addition ferrochrome, molybdenum-iron, vanadium iron, ferro-niobium, add ferrosilicon and ferromanganese until completely melted, be warming up to 1570 DEG C
Adding nickel alloy, calcium-silicon, ferrozirconium after being heated to being completely melt, each raw material obtains after being completely melt to skim
Molten steel, cast, die sinking after molten steel solidifies completely, stove is cooled to room temperature and obtains wear-resistant ball base；
S2, heat treatment: the wear-resistant ball base obtained in S1 is sequentially passed through normalizing, quenching and high tempering and processes；
In normalized treatment, temperature rising to 1006 DEG C, be incubated 70min, air cooling is to room temperature；In Quenching Treatment,
Temperature rising to 806 DEG C, is incubated 71min, water-cooled is to room temperature；In high tempering processes, temperature is risen to
530 DEG C, being incubated 130min, water-cooled is to room temperature, thus obtains being heat-treated ball base；
S3, heat treatment ball base pretreatment: after the heat treatment ball base sandblasting that will obtain in S2, after washing with acetone
Polish 15min with abrasive paper for metallograph, clean 3 times with acetone, with washes of absolute alcohol 2 times, be positioned over vacuum
In drying box, the temperature of regulation drying box is 55 DEG C, obtains pre-processing ball base after insulation 4h；
Pre-process before S4, cladding: in alloy powder, add 2wt% nano Ce O2After put into ball mill ball milling
3h, puts into vacuum drying chamber afterwards, and the temperature of regulation drying box is 72 DEG C, and insulation 4.3h obtains composite granule；
Composite granule is sprayed on the surface of pretreatment ball base with plasma, and thickness is pre-before 0.16mm obtains cladding
Process ball base；Described alloy powder includes by weight: the Mn of 10 parts, the Cr of 8.3 parts, the Si of 1 part,
The Al of 1.0 parts2O3, the Al of 3 parts, the Co of 1 part, 75 parts of Fe；
S5, cladding: before the cladding that will obtain in S4, pretreatment ball base is put into and carried out laser in laser cladding equipment
Cladding, obtains cladding wear-resistant ball after cooling；Wherein the technological parameter of laser melting coating is as follows: single-channel scanning, uses
Argon shield laser cell, laser power is set to 1.7KW, a diameter of 0.2mm of tabula rasa, and cladding speed is
3mm/s；
S6, nitriding: put in Double-heating multi-functional ion-bombardment by the cladding wear-resistant ball obtained in S5
Row nitridation process obtains described wear-resistant ball, and the parameter of described nitridation process is specific as follows: glow voltage: 0.58KV,
Dutycycle: 45%, ammonia flow: 0.08m3/ h, furnace pressure: 220Pa, temperature: 450 DEG C, time: 3h.
Embodiment 2
Ball mill high abrasion antioxidant wear-resistant ball of the present invention, its constituent is included by mass fraction:
C:2.0%, Mn:0.46%, Si:0.81%, Ni:0.21%, Cr:5.95%, Mo:1.5%, V:0.7%, Nb:0.2%,
Ca:0.023%, Zr:0.015%, Cu:0.02%, S:0.02%, P:0.033%, surplus is Fe and can not
The impurity avoided；
According to above-mentioned constituent proportioning, ball mill high abrasion antioxidant wear-resistant ball is carried out according to following technique
Preparation:
S1, melting: steel scrap is joined in medium frequency induction melting furnace, and it is heated to 1500 DEG C, it is incubated 45min
Rear addition ferrochrome, molybdenum-iron, vanadium iron, ferro-niobium, add ferrosilicon and ferromanganese until completely melted, be warming up to 1560 DEG C
Adding nickel alloy, calcium-silicon, ferrozirconium after being heated to being completely melt, each raw material obtains after being completely melt to skim
Molten steel, cast, die sinking after molten steel solidifies completely, stove is cooled to room temperature and obtains wear-resistant ball base；
S2, heat treatment: the wear-resistant ball base obtained in S1 is sequentially passed through normalizing, quenching and high tempering and processes；
In normalized treatment, temperature rising to 980 DEG C, be incubated 80min, air cooling is to room temperature；In Quenching Treatment,
Temperature rising to 800 DEG C, is incubated 75min, water-cooled is to room temperature；In high tempering processes, temperature is risen to
523 DEG C, being incubated 134min, water-cooled is to room temperature, thus obtains being heat-treated ball base；Wherein, in normalized treatment
In, during temperature rises to 980 DEG C, heating rate reduces with the rising of temperature and averagely heats up speed
Rate is 5 DEG C/min；In Quenching Treatment, temperature rising to 800 DEG C, be incubated 75min, water-cooled is to room temperature
During, cooling velocity reduces with the reduction of temperature；
S3, heat treatment ball base pretreatment: after the heat treatment ball base sandblasting that will obtain in S2, after washing with acetone
Polish 20min with abrasive paper for metallograph, clean 3 times with acetone, with washes of absolute alcohol 2 times, be positioned over vacuum
In drying box, the temperature of regulation drying box is 63 DEG C, obtains pre-processing ball base after insulation 3.6h；
Pre-process before S4, cladding: in alloy powder, add 1wt% nano Ce O2After put into ball mill ball milling
5h, puts into vacuum drying chamber afterwards, and the temperature of regulation drying box is 50 DEG C, and insulation 5h obtains composite granule；
Composite granule is sprayed on the surface of pretreatment ball base with plasma, and thickness is to locate in advance before 0.1mm obtains cladding
Reason ball base；Described alloy powder includes by weight: the Mn of 12 parts, the Cr of 5 parts, the Si of 2.6 parts,
The Al of 1.3 parts2O3, the Al of 2.3 parts, the Co of 1.6 parts, 82 parts of Fe；
S5, cladding: before the cladding that will obtain in S4, pretreatment ball base is put into and carried out laser in laser cladding equipment
Cladding, obtains cladding wear-resistant ball after cooling；Wherein the technological parameter of laser melting coating is as follows: single-channel scanning, uses
Argon shield laser cell, laser power is set to 2.0KW, a diameter of 0.7mm of tabula rasa, and cladding speed is
2mm/s；
S6, nitriding: put in Double-heating multi-functional ion-bombardment by the cladding wear-resistant ball obtained in S5
Row nitridation process obtains described wear-resistant ball, and the parameter of described nitridation process is specific as follows: glow voltage: 0.38KV,
Dutycycle: 35%, ammonia flow: 0.065m3/ h, furnace pressure: 250Pa, temperature: 400 DEG C, time: 5h.
Embodiment 3
Ball mill high abrasion antioxidant wear-resistant ball of the present invention, its constituent is included by mass fraction:
C:1.7%, Mn:0.12%, Si:0.69%, Ni:0.45%, Cr:5.21%, Mo:1.1%, V:0.9%, Nb:0.5%,
Ca:0.01%, Zr:0.01%, Cu:0.01%, S:0.028%, P:0.03%, surplus is Fe and can not keep away
The impurity exempted from；
According to above-mentioned constituent proportioning, ball mill high abrasion antioxidant wear-resistant ball is carried out according to following technique
Preparation:
S1, melting: steel scrap is joined in medium frequency induction melting furnace, and it is heated to 1506 DEG C, it is incubated 40min
Rear addition ferrochrome, molybdenum-iron, vanadium iron, ferro-niobium, add ferrosilicon and ferromanganese until completely melted, be warming up to 1530 DEG C
Adding nickel alloy, calcium-silicon, ferrozirconium after being heated to being completely melt, each raw material obtains after being completely melt to skim
Molten steel, cast, die sinking after molten steel solidifies completely, stove is cooled to room temperature and obtains wear-resistant ball base；
S2, heat treatment: the wear-resistant ball base obtained in S1 is sequentially passed through normalizing, quenching and high tempering and processes；
In normalized treatment, temperature rising to 1030 DEG C, be incubated 50min, air cooling is to room temperature；In Quenching Treatment,
Temperature rising to 820 DEG C, is incubated 30min, water-cooled is to room temperature；During high tempering, temperature is risen to
500 DEG C, being incubated 150min, water-cooled is to room temperature, thus obtains being heat-treated ball base；Wherein, in normalized treatment
In, during temperature rises to 1030 DEG C, heating rate reduces with the rising of temperature and averagely heats up speed
Rate is 8 DEG C/min；In Quenching Treatment, temperature rising to 820 DEG C, be incubated 30min, water-cooled is to room temperature
During, cooling velocity reduces with the reduction of temperature；
S3, heat treatment ball base pretreatment: after the heat treatment ball base sandblasting that will obtain in S2, after washing with acetone
Polish 18min with abrasive paper for metallograph, clean 3 times with acetone, with washes of absolute alcohol 2 times, be positioned over vacuum
In drying box, the temperature of regulation drying box is 75 DEG C, obtains pre-processing ball base after insulation 3h；
Pre-process before S4, cladding: in alloy powder, add 3wt% nano Ce O2After put into ball mill ball milling
4h, puts into vacuum drying chamber afterwards, and the temperature of regulation drying box is 85 DEG C, and insulation 3h obtains composite granule；
Composite granule is sprayed on the surface of pretreatment ball base with plasma, and thickness is to locate in advance before 0.2mm obtains cladding
Reason ball base；Described alloy powder includes by weight: the Mn of 15 parts, the Cr of 10 parts, the Si of 3 parts,
The Al of 0.5 part2O3, the Al of 2 parts, the Co of 2 parts, 79 parts of Fe；
S5, cladding: before the cladding that will obtain in S4, pretreatment ball base is put into and carried out laser in laser cladding equipment
Cladding, obtains cladding wear-resistant ball after cooling；Wherein the technological parameter of laser melting coating is as follows: single-channel scanning, uses
Argon shield laser cell, laser power is set to 1.5KW, a diameter of 0.4mm of tabula rasa, and cladding speed is
4mm/s；
S6, nitriding: put in Double-heating multi-functional ion-bombardment by the cladding wear-resistant ball obtained in S5
Row nitridation process obtains described wear-resistant ball, and the parameter of described nitridation process is specific as follows: glow voltage: 0.2KV,
Dutycycle: 40%, ammonia flow: 0.08m3/ h, furnace pressure: 230Pa, temperature: 435 DEG C, time: 4.3h.
Embodiment 4
Ball mill high abrasion antioxidant wear-resistant ball of the present invention, its constituent is included by mass fraction:
C:1.5%, Mn:0.35%, Si:0.73%, Ni:0.42%, Cr:5.56%, Mo:1.36%, V:0.79%,
Nb:0.36%, Ca:0.026%, Zr:0.014%, Cu:0.02%, S:0.02%, P:0.031%, surplus is
Fe and inevitable impurity；
According to above-mentioned constituent proportioning, ball mill high abrasion antioxidant wear-resistant ball is carried out according to following technique
Preparation:
S1, melting: steel scrap is joined in medium frequency induction melting furnace, and it is heated to 1515 DEG C, it is incubated 34min
Rear addition ferrochrome, molybdenum-iron, vanadium iron, ferro-niobium, add ferrosilicon and ferromanganese until completely melted, be warming up to 1556 DEG C
Adding nickel alloy, calcium-silicon, ferrozirconium after being heated to being completely melt, each raw material obtains after being completely melt to skim
Molten steel, cast, die sinking after molten steel solidifies completely, stove is cooled to room temperature and obtains wear-resistant ball base；
S2, heat treatment: the wear-resistant ball base obtained in S1 is sequentially passed through normalizing, quenching and high tempering and processes；
In normalized treatment, temperature rising to 1015 DEG C, be incubated 66min, air cooling is to room temperature；In Quenching Treatment,
Temperature rising to 815 DEG C, is incubated 63min, water-cooled is to room temperature；During high tempering, temperature is risen to
521 DEG C, being incubated 138min, water-cooled is to room temperature, thus obtains being heat-treated ball base；Wherein, in normalized treatment
During, during temperature rises to 1015 DEG C, heating rate reduces with the rising of temperature and averagely rises
Temperature speed is 7 DEG C/min；In quenching process, temperature rising to 815 DEG C, be incubated 63min, water-cooled is to room
During temperature, cooling velocity reduces with the reduction of temperature；
S3, heat treatment ball base pretreatment: after the heat treatment ball base sandblasting that will obtain in S2, after washing with acetone
Polish 17min with abrasive paper for metallograph, clean 3 times with acetone, with washes of absolute alcohol 2 times, be positioned over vacuum
In drying box, the temperature of regulation drying box is 59 DEG C, obtains pre-processing ball base after insulation 3.8h；
Pre-process before S4, cladding: in alloy powder, add 2wt% nano Ce O2After put into ball mill ball milling
4h, puts into vacuum drying chamber afterwards, and the temperature of regulation drying box is 80 DEG C, and insulation 4h obtains composite granule；
Composite granule is sprayed on the surface of pretreatment ball base with plasma, and thickness is pre-before 0.15mm obtains cladding
Process ball base；Described alloy powder includes by weight: the Mn of 14 parts, the Cr of 8 parts, the Si of 2.5 parts,
The Al of 1.0 parts2O3, the Al of 2.2 parts, the Co of 1.3 parts, the Fe of 78 parts；
S5, cladding: before the cladding that will obtain in S4, pretreatment ball base is put into and carried out laser in laser cladding equipment
Cladding, obtains cladding wear-resistant ball after cooling；Wherein the technological parameter of laser melting coating is as follows: single-channel scanning, uses
Argon shield laser cell, laser power is set to 1.7KW, a diameter of 0.5mm of tabula rasa, and cladding speed is
4mm/s；
S6, nitriding: put in Double-heating multi-functional ion-bombardment by the cladding wear-resistant ball obtained in S5
Row nitridation process obtains described wear-resistant ball, and the parameter of described nitridation process is specific as follows: glow voltage: 0.5KV,
Dutycycle: 40%, ammonia flow: 0.06m3/ h, furnace pressure: 235Pa, temperature: 440 DEG C, time: 4h.
Claims (15)
1. a ball mill high abrasion antioxidant wear-resistant ball, it is characterised in that by mass fraction by following group
Become into and be grouped into: C:1.3-2.0%, Mn:0.12-0.46%, Si:0.53-0.81%, Ni:0.21-0.45%,
Cr:4.2-5.95%, Mo:1.1-1.5%, V:0.7-1.0%, Nb:0.2-0.5%, Ca:0.01-0.038%,
Zr:0.01-0.015%, Cu:0.01-0.03%, S≤0.028%, P≤0.033%, surplus is Fe and can not keep away
The impurity exempted from；
According to above-mentioned constituent proportioning, ball mill high abrasion antioxidant wear-resistant ball is carried out according to following technique
Preparation:
S1, melting: steel scrap is joined in medium frequency induction melting furnace, and it is heated to 1500-1520 DEG C, insulation
Add ferrochrome, molybdenum-iron, vanadium iron, ferro-niobium after 20-45min, add ferrosilicon and ferromanganese until completely melted, rise
Temperature adds nickel alloy, calcium-silicon, ferrozirconium after being heated to being completely melt to 1530-1570 DEG C, and each raw material is complete
Fusing obtains molten steel after skimming, and cast, die sinking after molten steel solidifies completely, stove is cooled to room temperature and obtains wear-resistant ball
Base；
S2, heat treatment: the wear-resistant ball base obtained in S1 is sequentially passed through normalizing, quenching and high tempering and processes；
In normalized treatment, temperature rising to 980-1030 DEG C, be incubated 50-80min, air cooling is to room temperature；In quenching
In process, temperature rising to 800-820 DEG C, be incubated 30-75min, water-cooled is to room temperature；At high tempering
In reason, temperature rising to 500-530 DEG C, be incubated 130-150min, water-cooled is to room temperature, thus obtains at heat
Reason ball base；
S3, heat treatment ball base pretreatment: after the heat treatment ball base sandblasting that will obtain in S2, after washing with acetone
Polish with abrasive paper for metallograph, again with washes of absolute alcohol after cleaning with acetone, be positioned in vacuum drying chamber,
The temperature of regulation drying box is 55-75 DEG C, obtains pre-processing ball base after insulation 3-4h；
Pre-process before S4, cladding: in alloy powder, add 1-3wt% nano Ce O2After put into ball mill ball
Mill 3-5h, puts into vacuum drying chamber afterwards, and the temperature of regulation drying box is 50-85 DEG C, and insulation 3-5h obtains
Composite granule；Composite granule is sprayed on the surface of pretreatment ball base with plasma, and thickness is 0.1-0.2mm
Ball base is pre-processed before obtaining cladding；Described alloy powder consists of the following composition by weight: 10-15 part
The Al of Si, 0.5-1.3 part of Cr, 1-3 part of Mn, 5-10 part2O3, 2-3 part Al, 1-2 part Co,
75-82 part Fe；
S5, cladding: before the cladding that will obtain in S4, pretreatment ball base is put into and carried out laser in laser cladding equipment
Cladding, obtains cladding wear-resistant ball after cooling；Wherein the technological parameter of laser melting coating is as follows: single-channel scanning, uses
Argon shield laser cell, laser power is set to 1.5-2.0KW, a diameter of 0.2-0.7mm of tabula rasa, cladding speed
Degree is 2-4mm/s；
S6, nitriding: put in Double-heating multi-functional ion-bombardment by the cladding wear-resistant ball obtained in S5
Row nitridation process obtains described wear-resistant ball, and the parameter of described nitridation process is specific as follows: glow voltage:
0.2-0.58KV, dutycycle: 35-45%, ammonia flow: 0.05-0.08m3/ h, furnace pressure: 220-250Pa,
Temperature: 400-450 DEG C, time: 3-5h.
Ball mill high abrasion antioxidant wear-resistant ball the most according to claim 1, it is characterised in that press
Mass fraction consists of into and is grouped into: C:1.5%, Mn:0.35%, Si:0.73%, Ni:0.42%,
Cr:5.56%, Mo:1.36%, V:0.79%, Nb:0.36%, Ca:0.026%, Zr:0.014%, Cu:0.02%,
S:0.02%, P:0.031%, surplus is Fe and inevitable impurity.
Ball mill high abrasion antioxidant wear-resistant ball the most according to claim 2, it is characterised in that
In S2, in normalized treatment, during temperature is risen to 980-1030 DEG C, heating rate is with the liter of temperature
High and reduce.
4., according to the high abrasion antioxidant wear-resistant ball of the ball mill according to any one of claim 1-3, it is special
Levy and be, in S2, in Quenching Treatment, temperature is risen to 800-820 DEG C, be incubated 30-75min, water
During being cooled to room temperature, cooling velocity reduces with the reduction of temperature.
5., according to the high abrasion antioxidant wear-resistant ball of the ball mill according to any one of claim 1-3, it is special
Levying and be, in S2, in normalized treatment, temperature rises to 1015 DEG C, be incubated 66min, air cooling is to room
Temperature；In Quenching Treatment, temperature rising to 815 DEG C, be incubated 63min, water-cooled is to room temperature；At high tempering
During, temperature being risen to 521 DEG C, is incubated 138min, water-cooled is to room temperature.
Ball mill high abrasion antioxidant wear-resistant ball the most according to claim 4, it is characterised in that
In S2, in normalized treatment, temperature rising to 1015 DEG C, be incubated 66min, air cooling is to room temperature；In quenching
In process, temperature rising to 815 DEG C, be incubated 63min, water-cooled is to room temperature；During high tempering, will
Temperature rises to 521 DEG C, is incubated 138min, and water-cooled is to room temperature.
7., according to the high abrasion antioxidant wear-resistant ball of the ball mill according to any one of claim 1-3, it is special
Levy and be, in S4, alloy powder adds 2wt% nano Ce O2After put into ball mill ball milling 4h,
Putting into vacuum drying chamber afterwards, the temperature of regulation drying box is 80 DEG C, and insulation 4h obtains composite granule；With
Composite granule is sprayed on the surface of pretreatment ball base by plasma, and thickness is to locate in advance before 0.15mm obtains cladding
Reason ball base；Described alloy powder consists of the following composition by weight: the Mn of 14 parts, the Cr of 8 parts,
The Si of 2.5 parts, the Al of 1.0 parts2O3, the Al of 2.2 parts, the Co of 1.3 parts, the Fe of 78 parts.
Ball mill high abrasion antioxidant wear-resistant ball the most according to claim 4, it is characterised in that
In S4, alloy powder adds 2wt% nano Ce O2After put into ball mill ball milling 4h, put into vacuum afterwards
Drying box, the temperature of regulation drying box is 80 DEG C, and insulation 4h obtains composite granule；Will be compound with plasma
Powder spray is coated in the surface of pretreatment ball base, and thickness is to pre-process ball base before 0.15mm obtains cladding；Described
Alloy powder consists of the following composition by weight: the Mn of 14 parts, the Cr of 8 parts, the Si of 2.5 parts, 1.0
The Al of part2O3, the Al of 2.2 parts, the Co of 1.3 parts, the Fe of 78 parts.
Ball mill high abrasion antioxidant wear-resistant ball the most according to claim 5, it is characterised in that
In S4, alloy powder adds 2wt% nano Ce O2After put into ball mill ball milling 4h, put into vacuum afterwards
Drying box, the temperature of regulation drying box is 80 DEG C, and insulation 4h obtains composite granule；Will be compound with plasma
Powder spray is coated in the surface of pretreatment ball base, and thickness is to pre-process ball base before 0.15mm obtains cladding；Described
Alloy powder consists of the following composition by weight: the Mn of 14 parts, the Cr of 8 parts, the Si of 2.5 parts, 1.0
The Al of part2O3, the Al of 2.2 parts, the Co of 1.3 parts, the Fe of 78 parts.
10. according to the high abrasion antioxidant wear-resistant ball of the ball mill according to any one of claim 1-3, its
Being characterised by, in S5, the technological parameter of laser melting coating is as follows: single-channel scanning, uses argon shield laser cell,
Laser power is set to 1.7KW, a diameter of 0.5mm of tabula rasa, and cladding speed is 4mm/s.
11. ball mill high abrasion antioxidant wear-resistant balls according to claim 4, it is characterised in that
In S5, the technological parameter of laser melting coating is as follows: single-channel scanning, uses argon shield laser cell, laser power
Being set to 1.7KW, a diameter of 0.5mm of tabula rasa, cladding speed is 4mm/s.
12. ball mill high abrasion antioxidant wear-resistant balls according to claim 5, it is characterised in that
In S5, the technological parameter of laser melting coating is as follows: single-channel scanning, uses argon shield laser cell, laser power
Being set to 1.7KW, a diameter of 0.5mm of tabula rasa, cladding speed is 4mm/s.
13. according to the high abrasion antioxidant wear-resistant ball of the ball mill according to any one of claim 1-3, its
Being characterised by, in S6, the parameter of described nitridation process is specific as follows: glow voltage: 0.5KV, duty
Ratio: 40%, ammonia flow: 0.06m3/ h, furnace pressure: 235Pa, temperature: 440 DEG C, time: 4h.
14. ball mill high abrasion antioxidant wear-resistant balls according to claim 4, it is characterised in that
In S6, the parameter of described nitridation process is specific as follows: glow voltage: 0.5KV, dutycycle: 40%,
Ammonia flow: 0.06m3/ h, furnace pressure: 235Pa, temperature: 440 DEG C, time: 4h.
15. ball mill high abrasion antioxidant wear-resistant balls according to claim 5, it is characterised in that
In S6, the parameter of described nitridation process is specific as follows: glow voltage: 0.5KV, dutycycle: 40%,
Ammonia flow: 0.06m3/ h, furnace pressure: 235Pa, temperature: 440 DEG C, time: 4h.
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| CN104611641A (en) * | 2014-12-13 | 2015-05-13 | 广西科技大学 | Heat resistant and wear resistant steel plate |
| CN105200327A (en) * | 2015-09-29 | 2015-12-30 | 湖南电力耐磨金属制品有限公司 | Corrosion-resistant casting steel ball and heat treatment method thereof |
| CN105506619A (en) * | 2015-12-31 | 2016-04-20 | 四川腾达电梯制造有限公司 | Surface treatment process for elevator guide rail |
| CN107523669B (en) * | 2017-10-23 | 2018-12-07 | 宁国市正兴耐磨材料有限公司 | A kind for the treatment of process of high hardness high toughness high-chromium wear-resistant ball |
| CN107779809B (en) * | 2017-10-23 | 2019-05-14 | 宁国市正兴耐磨材料有限公司 | A kind of preparation method of composite coating wear-resistant ball |
| CN107723655B (en) * | 2017-10-23 | 2019-06-18 | 宁国市正兴耐磨材料有限公司 | A kind of heat treatment process of low chromium wear-resistant ball |
| CN107774400A (en) * | 2017-10-23 | 2018-03-09 | 宁国市正兴耐磨材料有限公司 | A kind of wear-resistant ball of high-hardness high temperature resistant |
| CN109201192B (en) * | 2018-09-04 | 2021-07-20 | 铜陵有色兴铜机电制造有限公司 | High life slay breaker |
| CN111172449B (en) * | 2019-01-31 | 2021-09-24 | 桂林理工大学 | Wear-resistant cast steel lining plate and manufacturing method thereof |
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