CN104278202B - A kind of coating wear-resistant ball - Google Patents
A kind of coating wear-resistant ball Download PDFInfo
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- CN104278202B CN104278202B CN201410225916.7A CN201410225916A CN104278202B CN 104278202 B CN104278202 B CN 104278202B CN 201410225916 A CN201410225916 A CN 201410225916A CN 104278202 B CN104278202 B CN 104278202B
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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
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- 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
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/20—Isothermal quenching, e.g. bainitic hardening
-
- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/607—Molten salts
-
- 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
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- 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
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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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
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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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0617—AIII BV compounds, where A is Al, Ga, In or Tl and B is N, P, As, Sb or Bi
Abstract
The invention discloses a kind of coating wear-resistant ball, including matrix and coating, the component of matrix includes by weight percentage: carbon: 1.3 1.6%, chromium: 19 23%, rare earth element: 1.2 2.3%, calcium: 0.5 1.2%, manganese: 0.9 1.1%, boron: 0.2 0.5%, silicon: 0.9 1.3%, titanium: 1.1 1.4%, sulphur: 0.01 0.04%, phosphorus: 0.02 0.03%, surplus is iron；Utilizing cathodic arc evaporation that titanium aluminium target and nitrogen carry out be deposited on stromal surface and form TiAlN coating, coating layer thickness is 26 μm, and in coating, titanium, aluminium, the mol ratio of nitrogen are 11 12:8 10:18 19.Heat-and corrosion-resistant of the present invention, can use in a variety of contexts, and anti-wear performance is good, and hardness is up to more than 70HRC, and impact flexibility is up to 7J/cm2, meet actually used during requirement to wear-resistant ball.
Description
Technical field
The present invention relates to wear-resistant ball technical field, particularly relate to a kind of coating wear-resistant ball.
Background technology
Ball mill is one of widely used Super-fine grinder machinery in industrial production.Ball mill steel ball is that ball mill sets
Standby grinding material medium, produces grinding by the collision friction between ball mill steel ball, between steel ball and material
Effect, thus the particle diameter of material is reduced further.In prior art, mill Jie's steel ball of ball mill is mainly
The ball milling steel-casting such as chromium alloy, Mn series alloy or nodular cast iron part, such as high chrome ball, low-chrome steel ball, many
Unit alloy steel ball and vanadium-titanium-chromium alloy steel ball etc., its target mostly is cement, coal, ore, cinder etc..
The hardness of coal pulverizer steel ball ball in use and wearability be affect coal pulverizer shaping effect principal element it
One.In order to improve the durability of crushing efficiency and steel ball, steel ball surface is needed to have enough hardness and abrasion resistance.
Meanwhile, in process of lapping, occur between steel ball and abrasive material, steel ball and liner plate and steel ball and steel ball rushes
Hit inevitable, therefore, also require that steel ball has certain toughness, it is to avoid broken ball, this just composition to steel ball
High-grade requirement is proposed.
Summary of the invention
The technical problem that basic background technology exists, the present invention proposes a kind of coating wear-resistant ball, heat resisting corrosion-proof
Erosion, can use in a variety of contexts, and anti-wear performance is good, hardness up to more than 70HRC, impact flexibility up to
7J/cm2, meet actually used during requirement to wear-resistant ball.
A kind of coating wear-resistant ball that the present invention proposes, is prepared by following steps:
S1, melting: by steel scrap, ferrochrome, rare earth alloy, cement, the pig iron, manganese ingot and borax successively
Put in induction furnace, in induction furnace, be passed through argon gas 20-30min, argon gas flow velocity 1-2L/s, after closing fire door
Induction furnace temperature is risen to 2500-2700 DEG C, after above-mentioned raw materials all melts, open fire door add titanium ingot,
Particle diameter is the carbon dust of 55-60 μm and silica flour that particle diameter is 30-50 μm, is again switched off fire door and will sense furnace temperature
Degree rises to 2700-3000 DEG C of insulation 3-4h, and vacuumizing maintenance negative pressure in insulating process is 0.3-0.4kPa, then
Secondary opening after fire door pulls the slag floating over liquid surface out, in induction furnace, remaining liq is matrix alloy liquid；
S2, detection: the constituent content of detection matrix alloy liquid, each element includes by weight percentage: carbon:
1.3-1.6%, chromium: 19-23%, rare earth element: 1.2-2.3%, calcium: 0.5-1.2%, manganese: 0.9-1.1%,
Boron: 0.2-0.5%, silicon: 0.9-1.3%, titanium: 1.1-1.4%, sulphur: 0.01-0.04%, phosphorus: 0.02-0.03%,
Surplus is iron and inevitable impurity；
S3, cast: come out of the stove by matrix alloy liquid and pour into a mould in mould, matrix alloy liquid tapping temperature is
2600-2700 DEG C, pouring temperature is 2400-2500 DEG C, is cooled to 400-500 DEG C and obtains ball-type alloy substrate
A；
S4, heat treatment: ball-type alloy substrate A is put into electric furnace, in electric furnace, is passed through argon gas 20-30min,
Argon gas flow velocity 1-2L/s, rises to 1100-1300 DEG C by furnace temperature with the programming rate of 10-15 DEG C/min,
After insulation 3-5h, the ball-type alloy substrate A after insulation is taken out and is placed in the nitrate that temperature is 160-200 DEG C
In solution, treating that the temperature of nitrate solution rises to 260-320 DEG C and is incubated, temperature retention time is Xmin, so
Rear taking-up air is cooled to room temperature and obtains ball-type alloy substrate B, X=2.4R+ (3～6), and wherein R is ball-type
The radius of alloy substrate A, the unit of R is mm, and described nitrate solution is by 1-3 part nitre by molfraction
Acid magnesium, 2-6 part potassium nitrate and 3-7 part sodium nitrate addition 8-15 part water are sufficiently stirred for gained；
S5, pretreatment: ball-type alloy substrate B is at room temperature immersed in the water 5-10min, take out dried
Immersing in acetone and be carried out with supersonic cleaning machine, scavenging period is 15-20min, and cleaning temperature is
55-65 DEG C, again take out 10-15min in dried at room temperature immersion ether, then take out and be placed in vacuum
Room is dried and obtains ball-type alloy substrate C；
S6, plating coating: be placed in cathodic arc equipment by ball-type alloy substrate C, vacuumizing maintenance negative pressure is
5-8kPa, uses Ar+After particle bombardment ball-type alloy substrate C Surface carries out sputter clean, use titanium-aluminum alloy target
After depositing with nitrogen, cooling obtains coating wear-resistant ball, wherein ball-type alloy substrate C back bias voltage be-120～
-160V, depositing temperature is 390-410 DEG C, and the coating layer thickness of coating wear-resistant ball is 2-6 μm, titanium in coating,
Aluminium, the mol ratio of nitrogen are 11-12:8-10:18-19.
1.3%, 1.4% in specific embodiment, the constituent content of matrix alloy liquid includes by weight percentage: carbon:,
1.5%, 1.6%, chromium: 19%, 20%, 21%, 22%, 23%, rare earth element: 1.2%, 1.3%, 1.4%,
0.5%, 0.6% 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, calcium:,
0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, manganese: 0.90%, 0.95%, 1.0%, 1.05%, 1.10%,
Boron: 0.2%, 0.3%, 0.4%, 0.5%, silicon: 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, titanium: 1.1%,
0.020%, 0.022% 1.2%, 1.3%, 1.4%, sulphur: 0.01%, 0.02%, 0.03%, 0.04%, phosphorus:,
0.024%, 0.026%, 0.028%, 0.030%, surplus is iron and inevitable impurity.
Preferably, in S1, by steel scrap, ferrochrome, rare earth alloy, cement, the pig iron, manganese ingot and borax
It is sequentially placed in induction furnace, in induction furnace, is passed through argon gas 23-27min, argon gas flow velocity 1.2-1.8L/s, close
Induction furnace temperature is risen to 2600-2650 DEG C by closed furnace behind the door, after above-mentioned raw materials all melts, opens fire door
Add the carbon dust that titanium ingot, particle diameter are 55-60 μm and the silica flour that particle diameter is 30-50 μm, be again switched off fire door
Induction furnace temperature rises to 2800-2900 DEG C of insulation 3.2-3.6h, and vacuumizing maintenance negative pressure in insulating process is
0.34-0.37kPa, is again turned on after fire door pulls the slag floating over liquid surface out, remaining liq in induction furnace
For matrix alloy liquid.
Preferably, in S2, the constituent content of detection matrix alloy liquid, each element includes by weight percentage:
Carbon: 1.4-1.5%, chromium: 20-22%, rare earth element: 1.7-2.1%, calcium: 0.6-1.1%, manganese: 0.95-1.00%,
Boron: 0.3-0.4%, silicon: 1.0-1.2%, titanium: 1.2-1.3%, sulphur: 0.02-0.03%, phosphorus: 0.022-0.026%,
Surplus is iron and inevitable impurity.
Preferably, cathodic arc equipment includes vacuum system, cathodic arc evaporation source, bias system, supply
System, flow regulating valve system, heating system, temp measuring system, workpiece rotating frame system, cooling water system and control
System.
When being produced various iron or ferroalloy by iron ore, owing to iron ore being often associated with the metal such as phosphorus, sulphur
Or nonmetallic ore, cause final iron or ferroalloy contain the element such as phosphorus, sulphur and the impurity being difficult to avoid that.
The present invention uses steel scrap, ferrochrome, rare earth alloy, cement, the pig iron, manganese ingot, borax to coordinate work
For the major ingredient of ball-type alloy substrate, complete the present invention for the requirement that ball-type density of matrix is high and impact flexibility is high,
Improve wear-resistant ball in use grinding efficiency, strengthen the durability of wear-resistant ball；The argon gas that is passed through before melting,
Titanium ingot, particle diameter are the carbon dust of 55-60 μm and silica flour that particle diameter is 30-50 μm cooperates, and can reduce molten
Refining contacts with oxygen, reduces the content of oxide in ball-type alloy substrate, further raising wear-resistant ball
Service life；Use nitrate solution to carry out isothermal hardening in heat treatment, first temperature is raised and make ball-type close
Austenite in auri matter is uniformly distributed, and utilizes the high specific heat capacity of nitrate solution to carry out fast cooling, makes Austria
Family name's body changes into bainite, increases substantially the toughness of ball-type alloy substrate, through test of many times prove magnesium nitrate,
260-320 DEG C of specific heat capacity when the mol ratio of potassium nitrate, sodium nitrate and water is 1-3:2-6:3-7:8-15
Maximum, can absorb the heat energy of ball-type alloy substrate in a large number, reach the effect of fast cooling, and further through many
Secondary Experimental Comparison show that temperature fall time exists linear functional relation, according to this line with the radius of ball-type alloy substrate
The temperature fall time that property function draws, can make the toughness of ball-type alloy substrate reach the highest；Employing cathode arc steams
The method of plating is in ball-type alloy substrate plated surface TiAlN coating, and TiAlN coating layer thickness is 2-6 μm, TiAlN
In coating, titanium, aluminium, the mol ratio of nitrogen are 11-12:8-10:18-19, utilize nitride to improve wear-resistant ball resistance to
Mill performance, meet actually used during requirement to wear-resistant ball, find after testing wear-resistant ball hardness up to
More than 70HRC, it is adaptable to the grinding of major part material, and in TiAlN coating, titanium, aluminium are by above-mentioned mol ratio
Coordinate, form the diaphragm of densification at coating surface, significantly improve heat-resisting, corrosion-resistant and sludge proof performance,
Make the present invention be more suitable for wet grinding, also improve the service life of the present invention, indirectly reduce use cost.
Detailed description of the invention
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
A kind of coating wear-resistant ball that the present invention proposes, is prepared by following steps:
S1, melting: by steel scrap, ferrochrome, rare earth alloy, cement, the pig iron, manganese ingot and borax successively
Put in induction furnace, in induction furnace, be passed through argon gas 30min, argon gas flow velocity 1L/s, will sense after closing fire door
Answer furnace temperature to rise to 2500 DEG C, after above-mentioned raw materials all melts, open fire door and add titanium ingot, particle diameter and be
The carbon dust of 60 μm and the silica flour that particle diameter is 30 μm, be again switched off fire door and induction furnace temperature risen to 3000 DEG C
Insulation 3h, vacuumizing maintenance negative pressure in insulating process is 0.4kPa, is again turned on fire door and pulls out and float over liquid table
After the slag in face, in induction furnace, remaining liq is matrix alloy liquid；
S2, detection: the constituent content of detection matrix alloy liquid, each element includes by weight percentage: carbon:
1.3%, chromium: 23%, rare earth element: 1.2%, calcium: 1.2%, manganese: 0.9%, boron: 0.5%, silicon: 0.9%,
Titanium: 1.4%, sulphur: 0.01%, phosphorus: 0.03%, surplus is iron and inevitable impurity；
S3, cast: come out of the stove by matrix alloy liquid and pour into a mould in mould, matrix alloy liquid tapping temperature is
2600 DEG C, pouring temperature is 2500 DEG C, is cooled to 400 DEG C and obtains ball-type alloy substrate A；
S4, heat treatment: ball-type alloy substrate A is put into electric furnace, in electric furnace, is passed through argon gas 30min,
Argon gas flow velocity 1L/s, rises to 1300 DEG C by furnace temperature with the programming rate of 10 DEG C/min, after insulation 3h,
Ball-type alloy substrate A after insulation is taken out and is placed in the nitrate solution that temperature is 200 DEG C, treat nitrate
The temperature of solution rises to 260 DEG C and is incubated, and temperature retention time is 30min, then takes out air and is cooled to room temperature
Obtaining ball-type alloy substrate B, described nitrate solution is by 3 parts of magnesium nitrates, 2 parts of potassium nitrate by molfraction
Add in 8 parts of water with 7 parts of sodium nitrate and be sufficiently stirred for gained；
S5, pretreatment: ball-type alloy substrate B is at room temperature immersed in the water 10min, take out dried leaching
Entering in acetone and be carried out with supersonic cleaning machine, scavenging period is 15min, and cleaning temperature is 65 DEG C, then
10min in ether is the most at room temperature immersed in secondary taking-up, then takes out to be placed in vacuum chamber and is dried
To ball-type alloy substrate C；
S6, plating coating: be placed in cathodic arc equipment by ball-type alloy substrate C, vacuumizing maintenance negative pressure is
5kPa, uses Ar+After particle bombardment ball-type alloy substrate C Surface carries out sputter clean, use titanium-aluminum alloy target and
After nitrogen deposits, cooling obtains coating wear-resistant ball, and wherein ball-type alloy substrate C back bias voltage is-160V, heavy
Accumulated temperature degree is 390 DEG C, and the coating layer thickness of coating wear-resistant ball is 6 μm, the mol ratio of titanium, aluminium, nitrogen in coating
For 11:10:18.
Embodiment 2
A kind of coating wear-resistant ball that the present invention proposes, is prepared by following steps:
S1, melting: by steel scrap, ferrochrome, rare earth alloy, cement, the pig iron, manganese ingot and borax successively
Put in induction furnace, in induction furnace, be passed through argon gas 20min, argon gas flow velocity 2L/s, will sense after closing fire door
Answer furnace temperature to rise to 2700 DEG C, after above-mentioned raw materials all melts, open fire door and add titanium ingot, particle diameter and be
The carbon dust of 55 μm and the silica flour that particle diameter is 50 μm, be again switched off fire door and induction furnace temperature risen to 2700 DEG C
Insulation 4h, vacuumizing maintenance negative pressure in insulating process is 0.3kPa, is again turned on fire door and pulls out and float over liquid table
After the slag in face, in induction furnace, remaining liq is matrix alloy liquid；
S2, detection: the constituent content of detection matrix alloy liquid, each element includes by weight percentage: carbon:
1.6%, chromium: 19%, rare earth element: 2.3%, calcium: 0.5%, manganese: 1.1%, boron: 0.2%, silicon: 1.3%,
Titanium: 1.1%, sulphur: 0.04%, phosphorus: 0.02%, surplus is iron and inevitable impurity；
S3, cast: come out of the stove by matrix alloy liquid and pour into a mould in mould, matrix alloy liquid tapping temperature is
2700 DEG C, pouring temperature is 2400 DEG C, is cooled to 500 DEG C and obtains ball-type alloy substrate A；
S4, heat treatment: ball-type alloy substrate A is put into electric furnace, in electric furnace, is passed through argon gas 20min,
Argon gas flow velocity 2L/s, rises to 1100 DEG C by furnace temperature with the programming rate of 15 DEG C/min, after insulation 5h,
Ball-type alloy substrate A after insulation is taken out and is placed in the nitrate solution that temperature is 160 DEG C, treat nitrate
The temperature of solution rises to 320 DEG C and is incubated, and temperature retention time is 60min, then takes out air and is cooled to room temperature
Obtaining ball-type alloy substrate B, described nitrate solution is by 1 part of magnesium nitrate, 6 parts of potassium nitrate by molfraction
Add in 15 parts of water with 3 parts of sodium nitrate and be sufficiently stirred for gained；
S5, pretreatment: ball-type alloy substrate B is at room temperature immersed in the water 5min, take out dried immersion
Being carried out in acetone and with supersonic cleaning machine, scavenging period is 20min, and cleaning temperature is 55 DEG C, again
Take out and dried the most at room temperature immerse 15min in ether, then take out to be placed in vacuum chamber to be dried and obtain
Ball-type alloy substrate C；
S6, plating coating: be placed in cathodic arc equipment by ball-type alloy substrate C, vacuumizing maintenance negative pressure is
8kPa, uses Ar+After particle bombardment ball-type alloy substrate C Surface carries out sputter clean, use titanium-aluminum alloy target and
After nitrogen deposits, cooling obtains coating wear-resistant ball, and wherein ball-type alloy substrate C back bias voltage is-120V, heavy
Accumulated temperature degree is 410 DEG C, and the coating layer thickness of coating wear-resistant ball is 2 μm, the mol ratio of titanium, aluminium, nitrogen in coating
For 12:8:19.
Embodiment 3
A kind of coating wear-resistant ball that the present invention proposes, is prepared by following steps:
S1, melting: by steel scrap, ferrochrome, rare earth alloy, cement, the pig iron, manganese ingot and borax successively
Put in induction furnace, in induction furnace, be passed through argon gas 23min, argon gas flow velocity 1.2L/s, will after closing fire door
Induction furnace temperature rises to 2650 DEG C, after above-mentioned raw materials all melts, opens fire door and adds titanium ingot, particle diameter and be
The carbon dust of 55 μm and the silica flour that particle diameter is 50 μm, be again switched off fire door and induction furnace temperature risen to 2800 DEG C
Insulation 3.6h, vacuumizing maintenance negative pressure in insulating process is 0.34kPa, is again turned on fire door and pulls out and float over liquid
After the slag of surface, in induction furnace, remaining liq is matrix alloy liquid；
S2, detection: the constituent content of detection matrix alloy liquid, each element includes by weight percentage: carbon:
1.5%, chromium: 20%, rare earth element: 2.1%, calcium: 0.6%, manganese: 1.00%, boron: 0.3%, silicon: 1.2%,
Titanium: 1.2%, sulphur: 0.03%, phosphorus: 0.022%, surplus is iron and inevitable impurity；
S3, cast: come out of the stove by matrix alloy liquid and pour into a mould in mould, matrix alloy liquid tapping temperature is
2680 DEG C, pouring temperature is 2450 DEG C, is cooled to 420 DEG C and obtains ball-type alloy substrate A；
S4, heat treatment: ball-type alloy substrate A is put into electric furnace, in electric furnace, is passed through argon gas 22min,
Argon gas flow velocity 1.2L/s, rises to 1180 DEG C by furnace temperature with the programming rate of 13 DEG C/min, is incubated 4.6h
After, the ball-type alloy substrate A after insulation is taken out and is placed in the nitrate solution that temperature is 170 DEG C, treat nitre
The temperature of acid salt solution rises to 300 DEG C and is incubated, and temperature retention time is 42min, then takes out air and is cooled to
Room temperature obtains ball-type alloy substrate B, and described nitrate solution is by 2 parts of magnesium nitrates, 4 parts of nitre by molfraction
Acid potassium and 4 parts of sodium nitrate 12 parts of water of addition are sufficiently stirred for gained；
S5, pretreatment: ball-type alloy substrate B is at room temperature immersed in the water 8min, take out dried immersion
Being carried out in acetone and with supersonic cleaning machine, scavenging period is 16min, and cleaning temperature is 63 DEG C, again
Take out and dried the most at room temperature immerse 11min in ether, then take out to be placed in vacuum chamber to be dried and obtain
Ball-type alloy substrate C；
S6, plating coating: be placed in cathodic arc equipment by ball-type alloy substrate C, vacuumizing maintenance negative pressure is
6kPa, uses Ar+After particle bombardment ball-type alloy substrate C Surface carries out sputter clean, use titanium-aluminum alloy target and
After nitrogen deposits, cooling obtains coating wear-resistant ball, and wherein ball-type alloy substrate C back bias voltage is-150V, heavy
Accumulated temperature degree is 398 DEG C, and the coating layer thickness of coating wear-resistant ball is 5 μm, the mol ratio of titanium, aluminium, nitrogen in coating
For 56:49:92.
Embodiment 4
A kind of coating wear-resistant ball that the present invention proposes, is prepared by following steps:
S1, melting: by steel scrap, ferrochrome, rare earth alloy, cement, the pig iron, manganese ingot and borax successively
Put in induction furnace, in induction furnace, be passed through argon gas 27min, argon gas flow velocity 1.8L/s, will after closing fire door
Induction furnace temperature rises to 2600 DEG C, after above-mentioned raw materials all melts, opens fire door and adds titanium ingot, particle diameter and be
The carbon dust of 60 μm and the silica flour that particle diameter is 30 μm, be again switched off fire door and induction furnace temperature risen to 2900 DEG C
Insulation 3.2h, vacuumizing maintenance negative pressure in insulating process is 0.37kPa, is again turned on fire door and pulls out and float over liquid
After the slag of surface, in induction furnace, remaining liq is matrix alloy liquid；
S2, detection: the constituent content of detection matrix alloy liquid, each element includes by weight percentage: carbon:
1.4%, chromium: 22%, rare earth element: 1.7%, calcium: 1.1%, manganese: 0.95%, boron: 0.4%, silicon: 1.0%,
Titanium: 1.3%, sulphur: 0.02%, phosphorus: 0.026%, surplus is iron and inevitable impurity；
S3, cast: come out of the stove by matrix alloy liquid and pour into a mould in mould, matrix alloy liquid tapping temperature is
2630 DEG C, pouring temperature is 2420 DEG C, is cooled to 460 DEG C and obtains ball-type alloy substrate A；
S4, heat treatment: ball-type alloy substrate A is put into electric furnace, in electric furnace, is passed through argon gas 27min,
Argon gas flow velocity 1.8L/s, rises to 1250 DEG C by furnace temperature with the programming rate of 11 DEG C/min, is incubated 3.7h
After, the ball-type alloy substrate A after insulation is taken out and is placed in the nitrate solution that temperature is 185 DEG C, treat nitre
The temperature of acid salt solution rises to 280 DEG C and is incubated, and temperature retention time is 54min, then takes out air and is cooled to
Room temperature obtains ball-type alloy substrate B, and described nitrate solution is by 2 parts of magnesium nitrates, 5 parts of nitre by molfraction
Acid potassium and 6 parts of sodium nitrate 14 parts of water of addition are sufficiently stirred for gained；
S5, pretreatment: ball-type alloy substrate B is at room temperature immersed in the water 6min, take out dried immersion
Being carried out in acetone and with supersonic cleaning machine, scavenging period is 17min, and cleaning temperature is 58 DEG C, again
Take out and dried the most at room temperature immerse 13min in ether, then take out to be placed in vacuum chamber to be dried and obtain
Ball-type alloy substrate C；
S6, plating coating: be placed in cathodic arc equipment by ball-type alloy substrate C, vacuumizing maintenance negative pressure is
7kPa, uses Ar+After particle bombardment ball-type alloy substrate C Surface carries out sputter clean, use titanium-aluminum alloy target and
After nitrogen deposits, cooling obtains coating wear-resistant ball, and wherein ball-type alloy substrate C back bias voltage is-140V, heavy
Accumulated temperature degree is 402 DEG C, and the coating layer thickness of coating wear-resistant ball is 4 μm, the mol ratio of titanium, aluminium, nitrogen in coating
For 58:41:94.
The cathodic arc equipment that in embodiment 1-4, plating coating is used includes vacuum system, cathodic arc evaporation
Source, bias system, air supply system, flow regulating valve system, heating system, temp measuring system, workpiece rotating frame system,
Cooling water system and control system.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office
Being limited to this, any those familiar with the art is in the technical scope that the invention discloses, according to this
The technical scheme of invention and inventive concept thereof in addition equivalent or change, all should contain the protection in the present invention
Within the scope of.
Claims (4)
1. a coating wear-resistant ball, it is characterised in that obtained by following steps:
S1, melting: by steel scrap, ferrochrome, rare earth alloy, cement, the pig iron, manganese ingot and borax successively
Put in induction furnace, in induction furnace, be passed through argon gas 20-30min, argon gas flow velocity 1-2L/s, after closing fire door
Induction furnace temperature is risen to 2500-2700 DEG C, after above-mentioned raw materials all melts, open fire door add titanium ingot,
Particle diameter is the carbon dust of 55-60 μm and silica flour that particle diameter is 30-50 μm, is again switched off fire door and will sense furnace temperature
Degree rises to 2700-3000 DEG C of insulation 3-4h, and vacuumizing maintenance negative pressure in insulating process is 0.3-0.4kPa, then
Secondary opening after fire door pulls the slag floating over liquid surface out, in induction furnace, remaining liq is matrix alloy liquid；
S2, detection: the constituent content of detection matrix alloy liquid, each element includes by weight percentage: carbon:
1.3-1.6%, chromium: 19-23%, rare earth element: 1.2-2.3%, calcium: 0.5-1.2%, manganese: 0.9-1.1%,
Boron: 0.2-0.5%, silicon: 0.9-1.3%, titanium: 1.1-1.4%, sulphur: 0.01-0.04%, phosphorus: 0.02-0.03%,
Surplus is iron and inevitable impurity；
S3, cast: come out of the stove by matrix alloy liquid and pour into a mould in mould, matrix alloy liquid tapping temperature is
2600-2700 DEG C, pouring temperature is 2400-2500 DEG C, is cooled to 400-500 DEG C and obtains ball-type alloy substrate
A；
S4, heat treatment: ball-type alloy substrate A is put into electric furnace, in electric furnace, is passed through argon gas 20-30min,
Argon gas flow velocity 1-2L/s, rises to 1100-1300 DEG C by furnace temperature with the programming rate of 10-15 DEG C/min,
After insulation 3-5h, the ball-type alloy substrate A after insulation is taken out and is placed in the nitrate that temperature is 160-200 DEG C
In solution, treating that the temperature of nitrate solution rises to 260-320 DEG C and is incubated, temperature retention time is Xmin, so
Rear taking-up air is cooled to room temperature and obtains ball-type alloy substrate B, X=2.4R+ (3～6), and wherein R is ball-type
The radial unit of alloy substrate A is value during mm, and described nitrate solution is by 1-3 part by molfraction
Magnesium nitrate, 2-6 part potassium nitrate and 3-7 part sodium nitrate addition 8-15 part water are sufficiently stirred for gained；
S5, pretreatment: ball-type alloy substrate B is at room temperature immersed in the water 5-10min, take out dried
Immersing in acetone and be carried out with supersonic cleaning machine, scavenging period is 15-20min, and cleaning temperature is
55-65 DEG C, again take out 10-15min in dried at room temperature immersion ether, then take out and be placed in vacuum
Room is dried and obtains ball-type alloy substrate C；
S6, plating coating: be placed in cathodic arc equipment by ball-type alloy substrate C, vacuumizing maintenance negative pressure is
5-8kPa, uses Ar+After particle bombardment ball-type alloy substrate C Surface carries out sputter clean, use titanium-aluminum alloy target
After depositing with nitrogen, cooling obtains coating wear-resistant ball, wherein ball-type alloy substrate C back bias voltage be-120～
-160V, depositing temperature is 390-410 DEG C, and the coating layer thickness of coating wear-resistant ball is 2-6 μm, titanium in coating,
Aluminium, the mol ratio of nitrogen are 11-12:8-10:18-19.
2. coating wear-resistant ball as claimed in claim 1, it is characterised in that in S1, closes steel scrap, ferrochrome
Gold, rare earth alloy, cement, the pig iron, manganese ingot and borax are sequentially placed in induction furnace, are passed through in induction furnace
Argon gas 23-27min, argon gas flow velocity 1.2-1.8L/s, rise to induction furnace temperature after closing fire door
2600-2650 DEG C, after above-mentioned raw materials all melts, open fire door adding titanium ingot, particle diameter is 55-60 μm
Carbon dust and silica flour that particle diameter is 30-50 μm, be again switched off fire door and induction furnace temperature risen to
2800-2900 DEG C of insulation 3.2-3.6h, vacuumizing maintenance negative pressure in insulating process is 0.34-0.37kPa, then
Secondary opening after fire door pulls the slag floating over liquid surface out, in induction furnace, remaining liq is matrix alloy liquid.
3. coating wear-resistant ball as claimed in claim 1, it is characterised in that in S2, detect matrix alloy liquid
Constituent content, each element includes by weight percentage: carbon: 1.4-1.5%, chromium: 20-22%, rare earth unit
Element: 1.7-2.1%, calcium: 0.6-1.1%, manganese: 0.95-1.00%, boron: 0.3-0.4%, silicon: 1.0-1.2%,
Titanium: 1.2-1.3%, sulphur: 0.02-0.03%, phosphorus: 0.022-0.026%, surplus is that iron is with inevitable
Impurity.
4. coating wear-resistant ball as claimed in claim 1, it is characterised in that cathodic arc equipment includes vacuum system
System, cathodic arc evaporation source, bias system, air supply system, flow regulating valve system, heating system, thermometric system
System, workpiece rotating frame system, cooling water system and control system.
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| JPS56156740A (en) * | 1980-04-07 | 1981-12-03 | Armco Steel Corp | Ferrite-free deposit-hardenable stainless steel |
| CN101736200A (en) * | 2009-12-24 | 2010-06-16 | 宁国市开源电力耐磨材料有限公司 | High-carbon steel multi-alloy wear-resisting ball and production method thereof |
| CN101857938A (en) * | 2010-07-15 | 2010-10-13 | 宁国市开源电力耐磨材料有限公司 | High-silicon and medium-chromium grinding ball and secondary metamorphic processing technique thereof |
| CN103014518A (en) * | 2012-12-10 | 2013-04-03 | 马鞍山市恒达耐磨材料有限责任公司 | High carbon high alloy steel wear-resisting ball and manufacturing method thereof |
| CN103667865A (en) * | 2013-11-16 | 2014-03-26 | 宁国市开源电力耐磨材料有限公司 | Ultrahigh-wear-resistance high-chromium multi-alloy grinding ball and composite modification processing technique thereof |
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| US7494617B2 (en) * | 2005-04-18 | 2009-02-24 | Heraeus Inc. | Enhanced formulation of cobalt alloy matrix compositions |
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| JPS56156740A (en) * | 1980-04-07 | 1981-12-03 | Armco Steel Corp | Ferrite-free deposit-hardenable stainless steel |
| CN101736200A (en) * | 2009-12-24 | 2010-06-16 | 宁国市开源电力耐磨材料有限公司 | High-carbon steel multi-alloy wear-resisting ball and production method thereof |
| CN101857938A (en) * | 2010-07-15 | 2010-10-13 | 宁国市开源电力耐磨材料有限公司 | High-silicon and medium-chromium grinding ball and secondary metamorphic processing technique thereof |
| CN103014518A (en) * | 2012-12-10 | 2013-04-03 | 马鞍山市恒达耐磨材料有限责任公司 | High carbon high alloy steel wear-resisting ball and manufacturing method thereof |
| CN103667865A (en) * | 2013-11-16 | 2014-03-26 | 宁国市开源电力耐磨材料有限公司 | Ultrahigh-wear-resistance high-chromium multi-alloy grinding ball and composite modification processing technique thereof |
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