CN108570625A - A kind of autogenous tumbling mill and semi-autogenous mill lining board special steel - Google Patents

A kind of autogenous tumbling mill and semi-autogenous mill lining board special steel Download PDF

Info

Publication number
CN108570625A
CN108570625A CN201710130191.7A CN201710130191A CN108570625A CN 108570625 A CN108570625 A CN 108570625A CN 201710130191 A CN201710130191 A CN 201710130191A CN 108570625 A CN108570625 A CN 108570625A
Authority
CN
China
Prior art keywords
liner plate
autogenous
semi
wearability
lining board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710130191.7A
Other languages
Chinese (zh)
Inventor
魏明安
武文建
李金玺
吴建明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Abrasion Resistant Standard Technology Co Ltd
Beijing Ring Grinding Mining And Metallurgy Energy Efficiency Technology Research Institute Co Ltd
Beijing High Mill Technology Co ltd
Original Assignee
Beijing Abrasion Resistant Standard Technology Co Ltd
Beijing Ring Grinding Mining And Metallurgy Energy Efficiency Technology Research Institute Co Ltd
Beijing High Mill Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Abrasion Resistant Standard Technology Co Ltd, Beijing Ring Grinding Mining And Metallurgy Energy Efficiency Technology Research Institute Co Ltd, Beijing High Mill Technology Co ltd filed Critical Beijing Abrasion Resistant Standard Technology Co Ltd
Priority to CN201710130191.7A priority Critical patent/CN108570625A/en
Publication of CN108570625A publication Critical patent/CN108570625A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/22—Lining for containers
    • 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
    • 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
    • C21D1/60—Aqueous agents
    • 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
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/006—Making ferrous alloys compositions used for making ferrous alloys
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C21D2211/008—Martensite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

The present invention relates to a kind of autogenous grinding and semi-autogenous mill lining board special steel, chemical compositions（%）For：C=0.4~1.1, Si=0.3~1.2, Mn=12~19, S ＜ 0.03, P ＜ 0.04, Cr=12~19, Mo=0.6~1.5, V=1.5~2.3, Nb ＜ 0.05, remaining is Fe.A variety of alloying elements are added in the present invention in potassium steel, using austenite over-saturation solution strengthening technology and second phase particles dispersion-strengtherning technology, carbide is added in austenite, obtain fine and close and uniform metallographic structure, to reach high rigidity, high yield strength and toughness improve the initial hardness and wearability of liner plate.The energy generated using abrading-ball, ore collision liner plate in use, is induced liner plate surface layer and martensitic traoformation occurs, further increase liner plate hardness and wearability, extend liner plate service life.

Description

A kind of autogenous tumbling mill and semi-autogenous mill lining board special steel
Technical field
The present invention relates to one kind to use for metalliferous mineral, industrial mineral, chemical industry mineral, energy source mineral and building materials material grinding In autogenous grinding and semi-autogenous mill, protection cylinder reduces a kind of autogenous grinding and the semi-autogenous mill lining board special steel of abrasion.
Background technology
Autogenous grinding and semi-autogenous mill are heavy in metalliferous mineral, industrial mineral, chemical industry mineral, energy source mineral and building materials materiel machining The milling equipment wanted, the effect of liner plate are to protect the cylinder of autogenous grinding and semi-autogenous mill, and transfer energy to material and grinding Jie Matter.Lining material has a major impact for extending the service life of liner plate and improving working efficiency.The widely used autogenous grinding in China at present With semi-autogenous mill lining material be potassium steel, yield strength is relatively low, and liner plate is yielding in use, when often result in it is disconnected It splits；This steel belongs to processing hardening proximate matter material, is existed hard due to failing to reach necessary work-hardening capacity using initial stage Low, the problem of wearing no resistance is spent, higher galling is caused, to affect service life.
Invention content
To solve the problems, such as that potassium steel exists, autogenous grinding and semi-autogenous mill liner plate wearability and service life, the present invention are improved Propose a kind of autogenous grinding and semi-autogenous mill lining board special steel.
The technical solution adopted by the present invention to solve the technical problems is：Using distinctive material chemical composition, in Gao Meng A variety of alloying elements are added in steel, solution strengthening is played the role of in the addition of alloying element, and the addition of rare earth element niobium makes crystal grain Apparent refinement, and improve hardness and impact flexibility.It is heat-treated simultaneously using austenite over-saturation solution strengthening technology, and Carbide is added in austenite.Second phase particles dispersion-strengtherning is then precipitated by ageing treatment appropriate, makes hardness and wear-resisting Property significantly improves, while obtaining high impact flexibility.Manufacturing the lining material completed also has Work Hardening Characteristic.
The beneficial effects of the invention are as follows：By implementing above-mentioned technical proposal, obtains fine and close and uniform austenite and add carbonization Object metallographic structure improves the initial hardness and wearability of liner plate, initial hardness to reach high rigidity, high yield strength and toughness Up to 37~43HRC, improve that original potassium steel initial hardness is low, the problem of wearing no resistance.It is collided using abrading-ball, ore in use The energy that liner plate generates induces liner plate surface layer and martensitic traoformation occurs, and processing hardening hardness is up to 55~60HRC, thin hardened layer Up to 10~20mm, liner plate hardness and wearability are further increased, extends liner plate service life.
Embodiment
A kind of autogenous grinding of the present invention and semi-autogenous mill lining board special steel embodiment, it is desirable that material chemical composition（%）For：C=0.4~ 1.1, Si=0.3~1.2, Mn=12~19, S ＜ 0.03, P ＜ 0.04, Cr=12~19, Mo=0.6~1.5, V=1.5~ 2.3, Nb ＜ 0.05, remaining is Fe.
Steel scrap, alloy, ferromanganese, ferrochrome, molybdenum-iron, vanadium iron etc. are chosen according to required chemical composition and carries out dispensing, are put into In middle frequency furnace, 1510 DEG C of progress meltings are heated up to, while being adjusted to chemical composition.
It tests analysis to molten steel, chemical composition（%）For：C=0.66, Si=0.72, Mn=13.6, S=0.02, P =0.03, Cr=15.8, Mo=0.9, V=1.8, Nb=0.03, remaining is Fe.Chemical composition is qualified in the range of requiring.
Autogenous grinding and the semi-autogenous mill that melted molten steel is poured into previously fabricated completion at a temperature of 1440 DEG C are special In liner plate casting pattern, then cool down 6 hours.
It is molded after cooling, detaches liner plate, cleaning.
The liner plate cast above is put into heat-treatment furnace and is heated.In heating process, 55 are heated up when less than 680 DEG C per hour DEG C, 1h is kept the temperature when reaching 690 DEG C, is then rapidly heated to 1060 DEG C and is kept the temperature, soaking time is according to liner plate thickness per 25mm Heat preservation one hour.Then water-tenacity treatment is carried out in rapid water of the input less than 30 DEG C, water is sufficiently large, and cooling finishes water temperature not It should be more than 45 DEG C.
Liner plate after water-tenacity treatment is placed again into stove, ageing treatment, processing time 4 are carried out at a temperature of 390 DEG C Hour, it then cools to room temperature, that is, obtains final finished.There is the liner plate of acquisition fine and close and uniform austenite to add carbide golden Phase constitution, hardness have high rigidity, high yield strength, high tenacity and high-wearing feature improve original Gao Meng up to 37~43HRC Steel liner plate initial hardness is low, the problem of wearing no resistance.Manufacturing the lining material completed also has Work Hardening Characteristic.
A kind of autogenous grinding of the present invention and semi-autogenous mill lining board special by manufacture completion are mounted in autogenous tumbling mill or semi-autogenous mill, The energy generated using abrading-ball, ore collision liner plate in use is induced liner plate surface layer and martensitic traoformation, processing hardening hardness occurs Up to 55~60HRC, thin hardened layer further improves liner plate hardness and wearability up to 10~20mm.
A kind of autogenous grinding of the present invention manufactured by the above technical measures and semi-autogenous mill lining board special will be obviously prolonged liner plate and make Use the service life.

Claims (2)

1. the present invention relates to a kind of autogenous grinding and semi-autogenous mill lining board special steel, chemical composition（%）For：C=0.4~1.1, Si= 0.3~1.2, Mn=12~19, S ＜ 0.03, P ＜ 0.04, Cr=12~19, Mo=0.6~1.5, V=1.5~2.3, Nb ＜ 0.05, remaining is Fe.
2. a variety of alloy members are added in a kind of autogenous grinding and semi-autogenous mill lining board special steel according to claim 1 in potassium steel Element adds carbonization using austenite over-saturation solution strengthening technology and second phase particles dispersion-strengtherning technology in austenite Object obtains fine and close and uniform metallographic structure and improves the initial hardness of liner plate to reach high rigidity, high yield strength and toughness And wearability；The energy generated using abrading-ball, ore collision liner plate in use, is induced liner plate surface layer and martensitic traoformation occurs, into One step improves liner plate hardness and wearability, extends liner plate service life.
CN201710130191.7A 2017-03-07 2017-03-07 A kind of autogenous tumbling mill and semi-autogenous mill lining board special steel Pending CN108570625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710130191.7A CN108570625A (en) 2017-03-07 2017-03-07 A kind of autogenous tumbling mill and semi-autogenous mill lining board special steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710130191.7A CN108570625A (en) 2017-03-07 2017-03-07 A kind of autogenous tumbling mill and semi-autogenous mill lining board special steel

Publications (1)

Publication Number Publication Date
CN108570625A true CN108570625A (en) 2018-09-25

Family

ID=63576900

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710130191.7A Pending CN108570625A (en) 2017-03-07 2017-03-07 A kind of autogenous tumbling mill and semi-autogenous mill lining board special steel

Country Status (1)

Country Link
CN (1) CN108570625A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101270434A (en) * 2008-05-06 2008-09-24 湖南红宇耐磨新材料有限公司 Low carbon type chromium-manganese-tungsten antifriction cast iron
CN102242314A (en) * 2011-01-17 2011-11-16 王军祥 Multiple alloy toughened and wear-resistant middle-manganese steel and preparation technology thereof
CN104087862A (en) * 2014-07-10 2014-10-08 太原重工股份有限公司 Alloy composition, semi-autogenous mill lining plate and manufacturing method of lining plate
CN105177436A (en) * 2015-07-31 2015-12-23 江苏首尔特种合金有限公司 High-strength, high-tenacity and high-wear-resistance alloy liner plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101270434A (en) * 2008-05-06 2008-09-24 湖南红宇耐磨新材料有限公司 Low carbon type chromium-manganese-tungsten antifriction cast iron
CN102242314A (en) * 2011-01-17 2011-11-16 王军祥 Multiple alloy toughened and wear-resistant middle-manganese steel and preparation technology thereof
CN104087862A (en) * 2014-07-10 2014-10-08 太原重工股份有限公司 Alloy composition, semi-autogenous mill lining plate and manufacturing method of lining plate
CN105177436A (en) * 2015-07-31 2015-12-23 江苏首尔特种合金有限公司 High-strength, high-tenacity and high-wear-resistance alloy liner plate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
蒋润科，刘俊凤: ""球磨机三种衬板的特点与比较"", 《矿山机械》 *

Similar Documents

Publication Publication Date Title
CN100489139C (en) High-strength abrasion-proof cast steel lining board and manufacturing method thereof
CN101497964B (en) High hardness and toughness low alloy abrasion resistant steel and use thereof
CN102242314B (en) Multiple alloy toughened and wear-resistant middle-manganese steel and preparation technology thereof
CN102021492B (en) Low-carbon low-alloy abrasion-resistant steel and production method thereof
CN101497963A (en) Medium alloy abrasion resistant steel and use thereof
CN112593157B (en) High-toughness bainite wear-resistant cast steel and preparation method and application thereof
CN106834902B (en) A kind of high-wearing feature carbide-containing ausferrite spheroidal graphite cast iron and preparation method thereof
CN106521361A (en) High-performance wear resisting steel plate and production method thereof
CN103834771B (en) The heat treating method of wearable cast steel
CN102371273B (en) Improved high-chromium iron roller and production method thereof
CN106244908B (en) A kind of hot continuous rolling finishing roll and its manufacture method
CN104109798A (en) High-Cr abrasion-resistant cast iron steel ball
CN102312174B (en) Non-tempered high-strength wear-resisting steel and production method thereof
CN103805866A (en) Wearable steel ball preparation process
CN103498103A (en) High-hardenability big-diameter 65MnCr grinding ball and preparation method thereof
CN105177404A (en) High anti-wear micro-copper alloy cast ball and processing technique thereof
CN108842041A (en) A kind of multi-layer wear-resistant ball and preparation method thereof can be used for grinding strong oxidizing property material
CN110106451B (en) High-silicon medium-carbon wear-resistant cast steel and heat treatment method thereof
CN107829023A (en) A kind of mining machinery high-strength abrasion-proof steel plate
CN102719766B (en) Wear-resistant steel with high strength and production method thereof
CN104561762B (en) A kind of low chromium high-toughness wear-resistant ball of major diameter
CN104831157B (en) A kind of wear-resisting high chromium casting ball and its preparation technology
CN103526117A (en) Non-quenched and tempered steel, engineering mechanical semiaxle manufactured by using same and manufacturing method of semiaxle
CN108570625A (en) A kind of autogenous tumbling mill and semi-autogenous mill lining board special steel
CN107267880B (en) A kind of high cracking resistance wear-resistant bainite Jaw plate steel, Jaw plate and preparation method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180925

WD01 Invention patent application deemed withdrawn after publication