CN108677091A - Evanohm steel ball and preparation method thereof in carbon during a kind of ball mill is used - Google Patents

Evanohm steel ball and preparation method thereof in carbon during a kind of ball mill is used Download PDF

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Publication number
CN108677091A
CN108677091A CN201810592668.8A CN201810592668A CN108677091A CN 108677091 A CN108677091 A CN 108677091A CN 201810592668 A CN201810592668 A CN 201810592668A CN 108677091 A CN108677091 A CN 108677091A
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Prior art keywords
temperature
steel ball
stove
heated
ball
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Pending
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CN201810592668.8A
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Chinese (zh)
Inventor
屯思远
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Xuzhou Hua Steel Abrasion Resistant Material Co Ltd
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Xuzhou Hua Steel Abrasion Resistant Material Co Ltd
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Priority to CN201810592668.8A priority Critical patent/CN108677091A/en
Publication of CN108677091A publication Critical patent/CN108677091A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • C22C33/06—Making ferrous alloys by melting using master alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—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
    • C22C38/04—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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • C—CHEMISTRY; METALLURGY
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/004—Dispersions; Precipitations
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Catalysts (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Evanohm steel ball and preparation method thereof in carbon in being used the invention discloses a kind of ball mill, each chemical composition and mass percent are：C:0.4‑0.7、Si:0.5‑1.0、Cr:4.4‑5.8、Mn:0.7‑1.1、Mo:0.5‑0.8、Cu:0.3‑0.6、V:0.05‑0.1、Ti:0.08‑0.14、B:0.03‑0.05、Co:0.1‑0.2、Al:0.05‑0.1、Pr:0.06‑0.08、Sm:0.03 0.06, S≤0.03, P≤0.04, surplus Fe.Steel ball produced by the present invention has higher hardness and toughness, and excellent in abrasion resistance, service life is long, can be widely applied to all kinds of ball mills, wide market.

Description

Evanohm steel ball and preparation method thereof in carbon during a kind of ball mill is used
Technical field
The present invention relates to cast iron materials technical fields, and in particular to evanohm steel ball and its system in carbon during a kind of ball mill is used Preparation Method.
Background technology
Ball mill steel ball is ball mill equipment grinding material medium, by between ball mill steel ball between steel ball and material Collision friction generates mill stripping effect, important base parts and components, and especially accurate industrial ball plays in the national economic development Great function, be widely used in the industries such as cement building material, metal mine, coal slurry thermoelectricity, chemical engineering, ceramics powder prepare with Ultra-fine deep processing.Steel ball is the main vulnerable part of ball mill, and work is heavy, rigorous service condition, therefore to steel ball material Wearability and toughness have higher requirement.
Invention content
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide during a kind of ball mill is used in carbon evanohm steel ball and Preparation method.
To achieve the above object, the technical solution adopted by the present invention is as follows：
Evanohm steel ball in carbon during a kind of ball mill is used, each chemical composition and mass percent are：C0.4-0.7、Si0.5- 1.0、Cr4.4-5.8、Mn0.7-1.1、Mo0.5-0.8、Cu0.3-0.6、V0.05-0.1、Ti0.08-0.14、B0.03-0.05、 Co0.1-0.2, Al0.05-0.1, Pr0.06-0.08, Sm0.03-0.06, S≤0.03, P≤0.04, surplus Fe.
During a kind of ball mill is used in carbon evanohm steel ball preparation method, include the following steps：
（1）Melting is carried out in intermediate frequency furnace, first addition steel scrap, the pig iron, ferrosilicon are melting down, sequentially add ferrochrome, ferro-boron, molybdenum Iron, ferrotianium, ferro-cobalt, copper adjust hot metal composition after its all fusing, ferromanganese and vanadium are successively added in 4-6min before coming out of the stove Fine aluminium progress deoxidation is added before coming out of the stove, chemical composition analysis is carried out before coming out of the stove, can be come out of the stove after qualified for iron in 2-4min, iron Water tapping temperature is controlled at 1505-1545 DEG C；
（2）Rare earth ferrosilicon alloy alterant is poured in packet and carries out rotten inoculation, and alterant carries out 250-300 DEG C using preceding Preheating, the inoculation temperature of going bad is 1460-1490 DEG C, is then sprinkled into the poly- slag coverture of suitable pearlite insulation toward in wrapping Covering, and calmness 6-12min, are poured into a mould after skimming, and pouring temperature is controlled at 1435-1455 DEG C；
（3）Steel ball obtained above is heat-treated：It is first heated to 890-960 DEG C, keeps the temperature 4-5h, then be cooled to 460-520 DEG C, 2-3h is kept the temperature, 6-8h is tempered at 140-180 DEG C again after mist cold quenching, is then heated to 650-700 DEG C, keeps the temperature 3-4h, then It is heated to 980-1040 DEG C, 5-6h is kept the temperature, 4-6h is tempered at 240-320 DEG C again after husky cold quenching, it is finally heated to 1060- 1120 DEG C, 3-5h is kept the temperature, then be cooled to 720-760 DEG C, keeps the temperature 2-4h, 5-6h is tempered at 300-350 DEG C again after oil quenchinng, It is air-cooled to room temperature.
Beneficial effects of the present invention：
（1）Present component reasonable design, by adjusting C, Cr content and add Mn, Mo of carbide former, Cu, V, Ti, B, Co, play multicomponent alloy element comprehensive function carry out alloying, can notable crystal grain thinning, improve tissue morphology, Improve impact flexibility and wearability；
（2）Reasonable heat treatment process of the present invention, by quench three times and corresponding temper after, be organized as martensitic matrix + austenite（It is distributed along crystal boundary）The granular carbide of+disperse recrystallizes in heat treatment process, and crystal grain is tiny, can be notable Improve hardness and impact flexibility；
（3）Steel ball produced by the present invention has higher hardness and toughness, and excellent in abrasion resistance, service life is long, can answer extensively For all kinds of ball mills, wide market.
Specific implementation mode
Evanohm steel ball in carbon during a kind of ball mill is used, each chemical composition and mass percent are：C0.4-0.7、 Si0.5-1.0、Cr4.4-5.8、Mn0.7-1.1、Mo0.5-0.8、Cu0.3-0.6、V0.05-0.1、Ti0.08-0.14、 B0.03-0.05, Co0.1-0.2, Al0.05-0.1, Pr0.06-0.08, Sm0.03-0.06, S≤0.03, P≤0.04, surplus For Fe.
During a kind of ball mill is used in carbon evanohm steel ball preparation method, include the following steps：
（1）Melting is carried out in intermediate frequency furnace, first addition steel scrap, the pig iron, ferrosilicon are melting down, sequentially add ferrochrome, ferro-boron, molybdenum Iron, ferrotianium, ferro-cobalt, copper adjust hot metal composition after its all fusing, ferromanganese and vanadium are successively added in 4-6min before coming out of the stove Fine aluminium progress deoxidation is added before coming out of the stove, chemical composition analysis is carried out before coming out of the stove, can be come out of the stove after qualified for iron in 2-4min, iron Water tapping temperature is controlled at 1505-1545 DEG C；
（2）Rare earth ferrosilicon alloy alterant is poured in packet and carries out rotten inoculation, and alterant carries out 250-300 DEG C using preceding Preheating, the inoculation temperature of going bad is 1460-1490 DEG C, is then sprinkled into the poly- slag coverture of suitable pearlite insulation toward in wrapping Covering, and calmness 6-12min, are poured into a mould after skimming, and pouring temperature is controlled at 1435-1455 DEG C；
（3）Steel ball obtained above is heat-treated：It is first heated to 890-960 DEG C, keeps the temperature 4-5h, then be cooled to 460-520 DEG C, 2-3h is kept the temperature, 6-8h is tempered at 140-180 DEG C again after mist cold quenching, is then heated to 650-700 DEG C, keeps the temperature 3-4h, then It is heated to 980-1040 DEG C, 5-6h is kept the temperature, 4-6h is tempered at 240-320 DEG C again after husky cold quenching, it is finally heated to 1060- 1120 DEG C, 3-5h is kept the temperature, then be cooled to 720-760 DEG C, keeps the temperature 2-4h, 5-6h is tempered at 300-350 DEG C again after oil quenchinng, It is air-cooled to room temperature.
Through examine, commercialization study be divided into C0.58%, Si0.74%, Cr5.21%, Mn0.95%, Mo0.77%, Cu0.43%, V0.084%、Ti0.011%、B0.044%、Co%0.16、Al0.082%、Pr0.075%、Sm0.048%、S0.024%、P0.033%、 Surplus is Fe.Mechanical property is：Hardness：63.7HRC impact flexibility：26.4J/cm2.

Claims (2)

  1. Evanohm steel ball in carbon during 1. a kind of ball mill is used, which is characterized in that its each chemical composition and mass percent are： C0.4-0.7、Si0.5-1.0、Cr4.4-5.8、Mn0.7-1.1、Mo0.5-0.8、Cu0.3-0.6、V0.05-0.1、Ti0.08- 0.14、B0.03-0.05、Co0.1-0.2、Al0.05-0.1、Pr0.06-0.08、Sm0.03-0.06、S≤0.03、P≤0.04、 Surplus is Fe.
  2. During 2. a kind of ball mill as described in claim 1 is used in carbon evanohm steel ball preparation method, it is characterised in that including Following steps：
    （1）Melting is carried out in intermediate frequency furnace, first addition steel scrap, the pig iron, ferrosilicon are melting down, sequentially add ferrochrome, ferro-boron, molybdenum Iron, ferrotianium, ferro-cobalt, copper adjust hot metal composition after its all fusing, ferromanganese and vanadium are successively added in 4-6min before coming out of the stove Fine aluminium progress deoxidation is added before coming out of the stove, chemical composition analysis is carried out before coming out of the stove, can be come out of the stove after qualified for iron in 2-4min, iron Water tapping temperature is controlled at 1505-1545 DEG C；
    （2）Rare earth ferrosilicon alloy alterant is poured in packet and carries out rotten inoculation, and alterant carries out 250-300 DEG C using preceding Preheating, the inoculation temperature of going bad is 1460-1490 DEG C, is then sprinkled into the poly- slag coverture of suitable pearlite insulation toward in wrapping Covering, and calmness 6-12min, are poured into a mould after skimming, and pouring temperature is controlled at 1435-1455 DEG C；
    （3）Steel ball obtained above is heat-treated：It is first heated to 890-960 DEG C, keeps the temperature 4-5h, then be cooled to 460-520 DEG C, 2-3h is kept the temperature, 6-8h is tempered at 140-180 DEG C again after mist cold quenching, is then heated to 650-700 DEG C, keeps the temperature 3-4h, then It is heated to 980-1040 DEG C, 5-6h is kept the temperature, 4-6h is tempered at 240-320 DEG C again after husky cold quenching, it is finally heated to 1060- 1120 DEG C, 3-5h is kept the temperature, then be cooled to 720-760 DEG C, keeps the temperature 2-4h, 5-6h is tempered at 300-350 DEG C again after oil quenchinng, It is air-cooled to room temperature.
CN201810592668.8A 2018-06-11 2018-06-11 Evanohm steel ball and preparation method thereof in carbon during a kind of ball mill is used Pending CN108677091A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172449A (en) * 2019-01-31 2020-05-19 桂林理工大学 Wear-resistant cast steel lining plate and manufacturing method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105112788A (en) * 2015-08-10 2015-12-02 霍邱县忠振耐磨材料有限公司 Medium-carbon and medium-chromium alloy steel ball for ball mill and preparation method of medium-carbon and medium-chromium alloy steel ball

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105112788A (en) * 2015-08-10 2015-12-02 霍邱县忠振耐磨材料有限公司 Medium-carbon and medium-chromium alloy steel ball for ball mill and preparation method of medium-carbon and medium-chromium alloy steel ball

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172449A (en) * 2019-01-31 2020-05-19 桂林理工大学 Wear-resistant cast steel lining plate and manufacturing method thereof

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Application publication date: 20181019