CA2239440C - Chimie de corps broyants et methode de traitement thermique pour ameliorer la resistance a l'usure - Google Patents

Chimie de corps broyants et methode de traitement thermique pour ameliorer la resistance a l'usure Download PDF

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Publication number
CA2239440C
CA2239440C CA 2239440 CA2239440A CA2239440C CA 2239440 C CA2239440 C CA 2239440C CA 2239440 CA2239440 CA 2239440 CA 2239440 A CA2239440 A CA 2239440A CA 2239440 C CA2239440 C CA 2239440C
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CA
Canada
Prior art keywords
bar
vessel
less
hardness
chromium
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.)
Expired - Lifetime
Application number
CA 2239440
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English (en)
Other versions
CA2239440A1 (fr
Inventor
Robert William Pugh
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA 2239440 priority Critical patent/CA2239440C/fr
Publication of CA2239440A1 publication Critical patent/CA2239440A1/fr
Application granted granted Critical
Publication of CA2239440C publication Critical patent/CA2239440C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/20—Disintegrating members
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
    • 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
    • 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
    • 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
    • C21D2211/009—Pearlite
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/01—End parts (e.g. leading, trailing end)
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/10—Differential treatment of inner with respect to outer regions, e.g. core and periphery, respectively

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Heat Treatment Of Articles (AREA)
CA 2239440 1998-06-02 1998-06-02 Chimie de corps broyants et methode de traitement thermique pour ameliorer la resistance a l'usure Expired - Lifetime CA2239440C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2239440 CA2239440C (fr) 1998-06-02 1998-06-02 Chimie de corps broyants et methode de traitement thermique pour ameliorer la resistance a l'usure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2239440 CA2239440C (fr) 1998-06-02 1998-06-02 Chimie de corps broyants et methode de traitement thermique pour ameliorer la resistance a l'usure

Publications (2)

Publication Number Publication Date
CA2239440A1 CA2239440A1 (fr) 1999-12-02
CA2239440C true CA2239440C (fr) 2007-11-13

Family

ID=29275823

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2239440 Expired - Lifetime CA2239440C (fr) 1998-06-02 1998-06-02 Chimie de corps broyants et methode de traitement thermique pour ameliorer la resistance a l'usure

Country Status (1)

Country Link
CA (1) CA2239440C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106423471B (zh) * 2016-09-14 2019-06-14 陕西达能新型材料有限公司 一种降低精制棉粉碎机粉碎区温度的循环水冷却系统
CN114908238B (zh) * 2022-05-31 2024-07-23 中冶华天工程技术有限公司 特钢棒材智能化余热在线热处理方法
CN115141919B (zh) * 2022-05-31 2023-12-15 中冶华天工程技术有限公司 一种绿色化优棒在线热处理方法

Also Published As

Publication number Publication date
CA2239440A1 (fr) 1999-12-02

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Effective date: 20180604