CN106282747A - A kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block and preparation method - Google Patents

A kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block and preparation method Download PDF

Info

Publication number
CN106282747A
CN106282747A CN201610757839.9A CN201610757839A CN106282747A CN 106282747 A CN106282747 A CN 106282747A CN 201610757839 A CN201610757839 A CN 201610757839A CN 106282747 A CN106282747 A CN 106282747A
Authority
CN
China
Prior art keywords
cast
cast iron
rich chromium
degree
temperature
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
CN201610757839.9A
Other languages
Chinese (zh)
Inventor
李武
邵黎军
徐进
周勤忠
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.)
JIANGSU GONGCHANG ROLL JOINT-STOCK Co Ltd
Original Assignee
JIANGSU GONGCHANG ROLL JOINT-STOCK 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 JIANGSU GONGCHANG ROLL JOINT-STOCK Co Ltd filed Critical JIANGSU GONGCHANG ROLL JOINT-STOCK Co Ltd
Priority to CN201610757839.9A priority Critical patent/CN106282747A/en
Publication of CN106282747A publication Critical patent/CN106282747A/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
    • C22C33/00—Making ferrous alloys
    • C22C33/006—Making ferrous alloys compositions used for making ferrous alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/08—Centrifugal casting; Casting by using centrifugal force in which a stationary mould is fed from a rotating mass of liquid metal
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/28—Normalising
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/30—Stress-relieving
    • 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
    • C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
    • 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
    • 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
    • C22C38/04—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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon

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)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses a kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block, be made up of two kinds of blending constituents, one of which includes the composition C 1.70～2.10 of mass percent；Si 0.40～1.00；Mn 0.70～1.20；Ni0.20～1.30；Cr 10.00～20.00；Mo 0.50～1.50；S ≤0.03；P≤0.03, surplus is Fe and inevitable impurity；Another kind of blending constituent includes the composition C 0.70～1.20 of mass percent, Si 1.30～1.90, Mn 0.50～0.80, Ni≤0.50, Cr≤0.50, Mo≤0.15, S≤0.03, P≤0.03, and surplus is Fe and inevitable impurity.Meanwhile, the invention also discloses the preparation method of above-mentioned rich chromium cast iron collars.The rich chromium cast iron collars hardness that the present invention produces is high and wearability is good, has the longest service life simultaneously.

Description

A kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block and preparation method
Technical field
The invention belongs to iron and steel forging field, be specifically related to a kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block and system Preparation Method.
Background technology
Along with the serious surplus of steel industry production capacity, Ge great steel mill more payes attention to energy-saving and cost-reducing, the biggest H profile steel roller Ring at present to major diameter larger product all based on imported product, especially domestic more than the big specification of 1400mm major diameter at present the most still The product that can not produce.
Summary of the invention
Goal of the invention: present invention aims to the deficiencies in the prior art, it is provided that a kind of omnipotent water of cast-in-block Flat rich chromium cast iron collars.
The invention also discloses the preparation method of the omnipotent horizontal rich chromium cast iron collars of above-mentioned cast-in-block.
Technical scheme: in order to reach foregoing invention purpose, the present invention is specifically achieved like this: a kind of cast-in-block Omnipotent horizontal rich chromium cast iron collars, is made up of two kinds of blending constituents, one of which include mass percent composition C 1.70～ 2.10 Si 0.40～1.00 Mn 0.70～1.20 Ni0.20～1.30 Cr 10.00～20.00 Mo 0.50～1.50 S ≤ 0.03 P≤0.03, surplus is Fe and inevitable impurity；Another kind of blending constituent includes the composition C of mass percent 0.70～1.20, Si 1.30～1.90, Mn 0.50～0.80, Ni≤0.50, Cr≤0.50, Mo≤0.15, S≤0.03, P ≤ 0.03, surplus is Fe and inevitable impurity.
The method preparing the omnipotent horizontal rich chromium cast iron collars of cast-in-block, comprises the following steps:
(1) smelting: melt iron in middle frequency furnace, cast iron melting temperature is 1450 ~ 1620 DEG C, obtains pure smelting by logical Ironmaking water；
(2) to adding alterant in ladle, addition is molten steel quality 0.10～0.50%AL, 0.20～0.50% silico-calcium, goes out Metamorphism treatment is carried out during ferrum；
(3) cast: ferrum liquid is poured into die cavity, inadequate for preventing static casting from washing away power, take bottom filling tangent line casting, molten iron From bottom, atwirl method is filled up from the bottom up so that casting mold metallurgy field trash can rapid increase；
(4) heat treatment: roll collar workblank carries out stress relief annealing, annealing temperature is 750-900 degree, and heat-treatment of annealing temperature retention time is 200-350 hour, furnace cooling after insulation knot speed, then carry out preprocessing to certain size, and carry out again at normalizing and tempering Reason, normalizing temperature 900-1000 degree, and add the cold mode of stove with air cooling and be cooled to 300～350 degree, after carry out temper, time Fire temperature 520-620 degree, tempering insulation time was at 30～60 hours, and after completing, stove is as cold as room temperature, rear warehouse-in the most up to standard.
Beneficial effect: the present invention, compared with conventional art, has the advantage that
(1) by alloying technology composition reasonable in design, the rational proportion added by carbon, chromium, molybdenum, nickel alloy, make overall casting Make performance to be optimized, it is ensured that good hardness from inside to outside.To in ladle add alterant AL0.10～ 0.50%, silico-calcium 0.20～0.50%, carry out Metamorphism treatment when tapping a blast furnace, no matter the inside and outside tissue of much diameter specifications can be effectively ensured Uniformity, improve anti-accident performance；
(2) ferrum liquid is poured into die cavity by employing, inadequate for preventing static casting from washing away power, takes bottom filling tangent line casting, molten iron From bottom, atwirl method is filled up from the bottom up so that casting mold metallurgy field trash can rapid increase；
(3) roll collar workblank carries out stress relief annealing, and annealing temperature is 750-900 degree, and heat-treatment of annealing temperature retention time is 200 ~ 350 Hour, the long term annealing time can be effectively ensured the uniformity of inside and outside tissue, furnace cooling after insulation knot speed, then carries out pre- It is worked into certain size, and carries out again normalizing and tempering process, normalizing temperature 900 ~ 1000 DEG C, and add, with air cooling, the mode that stove is cold Be cooled to 300～350 DEG C, after carry out temper, temperature 520 ~ 620 DEG C, tempering insulation time was at 30～60 hours, complete Cheng Houlu is as cold as room temperature, and the secondary precipitation for carbides such as M7C3 types provides the sufficient time, and carbide plays in the base The effect of dispersion-strengtherning, also improves hardness and the wearability of collars working lining, improves the collars life-span.
Detailed description of the invention
Embodiment:
(1) smelting: melt iron in middle frequency furnace, cast iron melting temperature is 1450 ~ 1620 DEG C, obtains pure smelting by logical Ironmaking water；
(2) to adding alterant in ladle, addition is molten steel quality 0.10～0.50%AL, 0.20～0.50% silico-calcium, goes out Metamorphism treatment is carried out during ferrum；
(3) cast: ferrum liquid is poured into die cavity, inadequate for preventing static casting from washing away power, take bottom filling tangent line casting, molten iron From bottom, atwirl method is filled up from the bottom up so that casting mold metallurgy field trash can rapid increase；
(4) heat treatment: roll collar workblank carries out stress relief annealing, annealing temperature is 750-900 degree, and heat-treatment of annealing temperature retention time is 200-350 hour, furnace cooling after insulation knot speed, then carry out preprocessing to certain size, and carry out again at normalizing and tempering Reason, normalizing temperature 900-1000 degree, and add the cold mode of stove with air cooling and be cooled to 300～350 degree, after carry out temper, time Fire temperature 520-620 degree, tempering insulation time was at 30～60 hours, and after completing, stove is as cold as room temperature, rear warehouse-in the most up to standard.

Claims (2)

1. the omnipotent horizontal rich chromium cast iron collars of cast-in-block, it is characterised in that be made up of two kinds of blending constituents, Qi Zhongyi Plant composition C 1.70～2.10 Si 0.40～1.00 Mn 0.70～1.20 Ni0.20～1.30 including mass percent Cr 10.00～20.00 Mo 0.50～1.50 P≤0.03, S≤0.03, surplus is Fe and inevitable impurity；Another Kind of blending constituent includes the composition C 0.70～1.20 of mass percent, Si 1.30～1.90, Mn 0.50～0.80, Ni≤ 0.50, Cr≤0.50, Mo≤0.15, S≤0.03, P≤0.03, surplus is Fe and inevitable impurity.
2. the method preparing the omnipotent horizontal rich chromium cast iron collars of cast-in-block, it is characterised in that comprise the following steps:
(1) smelting: melt iron in middle frequency furnace, cast iron melting temperature is 1450 ~ 1620 DEG C, obtains pure smelting by logical Ironmaking water；
(2) to adding alterant in ladle, addition is molten steel quality 0.10～0.50%AL, 0.20～0.50% silico-calcium, goes out Metamorphism treatment is carried out during ferrum；
(3) cast: ferrum liquid is poured into die cavity, inadequate for preventing static casting from washing away power, take bottom filling tangent line casting, molten iron From bottom, atwirl method is filled up from the bottom up so that casting mold metallurgy field trash can rapid increase；
(4) heat treatment: roll collar workblank carries out stress relief annealing, annealing temperature is 750-900 degree, and heat-treatment of annealing temperature retention time is 200-350 hour, furnace cooling after insulation knot speed, then carry out preprocessing to certain size, and carry out again at normalizing and tempering Reason, normalizing temperature 900-1000 degree, and add the cold mode of stove with air cooling and be cooled to 300～350 degree, after carry out temper, time Fire temperature 520-620 degree, tempering insulation time was at 30～60 hours, and after completing, stove is as cold as room temperature, rear warehouse-in the most up to standard.
CN201610757839.9A 2016-08-30 2016-08-30 A kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block and preparation method Pending CN106282747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610757839.9A CN106282747A (en) 2016-08-30 2016-08-30 A kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block and preparation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610757839.9A CN106282747A (en) 2016-08-30 2016-08-30 A kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block and preparation method

Publications (1)

Publication Number Publication Date
CN106282747A true CN106282747A (en) 2017-01-04

Family

ID=57675685

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610757839.9A Pending CN106282747A (en) 2016-08-30 2016-08-30 A kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block and preparation method

Country Status (1)

Country Link
CN (1) CN106282747A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111996439A (en) * 2020-10-30 2020-11-27 常州凯达重工科技有限公司 Large-scale high-chromium iron roll collar and preparation method of assembly type roll thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58116912A (en) * 1981-12-28 1983-07-12 Kubota Ltd Composite roller
JP2001234274A (en) * 2000-02-25 2001-08-28 Kogi Corp Composite roll for hot rolling
CN101314180A (en) * 2008-05-12 2008-12-03 中钢集团邢台机械轧辊有限公司 Cold-forming die steel collars anticentripetal composite casting technique for rail beam and section
CN103352174A (en) * 2013-06-21 2013-10-16 中钢集团邢台机械轧辊有限公司 Roll ring for rolling and straightening track beam, and manufacturing method for same
CN105316577A (en) * 2015-10-28 2016-02-10 中钢集团邢台机械轧辊有限公司 Manufacturing method for large-scale high-carbon semi-steel material eccentric roll collar
CN105463308A (en) * 2015-11-26 2016-04-06 常州凯达重工科技有限公司 Centrifugal metal roll ring and manufacturing process thereof
CN105543655A (en) * 2015-12-24 2016-05-04 中钢集团邢台机械轧辊有限公司 High-chromium alloy centrifugal roller ring for universal profile steel and manufacturing method of high-chromium alloy centrifugal roller ring

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58116912A (en) * 1981-12-28 1983-07-12 Kubota Ltd Composite roller
JP2001234274A (en) * 2000-02-25 2001-08-28 Kogi Corp Composite roll for hot rolling
CN101314180A (en) * 2008-05-12 2008-12-03 中钢集团邢台机械轧辊有限公司 Cold-forming die steel collars anticentripetal composite casting technique for rail beam and section
CN103352174A (en) * 2013-06-21 2013-10-16 中钢集团邢台机械轧辊有限公司 Roll ring for rolling and straightening track beam, and manufacturing method for same
CN105316577A (en) * 2015-10-28 2016-02-10 中钢集团邢台机械轧辊有限公司 Manufacturing method for large-scale high-carbon semi-steel material eccentric roll collar
CN105463308A (en) * 2015-11-26 2016-04-06 常州凯达重工科技有限公司 Centrifugal metal roll ring and manufacturing process thereof
CN105543655A (en) * 2015-12-24 2016-05-04 中钢集团邢台机械轧辊有限公司 High-chromium alloy centrifugal roller ring for universal profile steel and manufacturing method of high-chromium alloy centrifugal roller ring

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
涅亨齐著: "《铸钢学 上册》", 31 January 1964 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111996439A (en) * 2020-10-30 2020-11-27 常州凯达重工科技有限公司 Large-scale high-chromium iron roll collar and preparation method of assembly type roll thereof
CN111996439B (en) * 2020-10-30 2021-03-23 常州凯达重工科技有限公司 Large-scale high-chromium iron roll collar and preparation method of assembly type roll thereof

Similar Documents

Publication Publication Date Title
CN103526126B (en) A kind of tool steel roll for rolling plate of moderate thickness and manufacture method thereof
CN103014516B (en) Borated low-alloy high-speed steel roller and manufacturing method thereof
CN101705430B (en) High-speed steel roll and preparation method thereof by centrifugal compounding in electromagnetic field
CN100574910C (en) Centrifugal casting half steel/steel/graphite steel composite roll collar and preparation method thereof
CN102766824B (en) Abrasion-resistant high-speed-steel roller ring and preparation method thereof
CN103805902B (en) A kind of Cutting free high-speed steel roll manufacturing process of rotary casting
CN106884126B (en) A kind of high chromium steel roller and its manufacturing method
CN102703822B (en) Preparation method of high-speed steel for composite roll collar
CN104060157B (en) A kind of hypereutectic high-chromium white cast iron and preparation method thereof
CN104438337B (en) A kind of abrasion-resistant roller for cold rolling of strip steel and preparation method thereof
CN103898415A (en) Improved Cr8 steel roll and preparation method thereof
CN102925783A (en) Method for preparing hypereutectic high chromium white cast iron
CN104264043A (en) Wear-resisting and high-speed centrifugally cast steel composite roll and preparation method thereof
CN106222530A (en) A kind of centrifugal casting rich chromium cast iron collars and preparation method
CN102383044B (en) Multicomponent high speed steel used for preparing roller
CN111101053A (en) Working roll for wire rod rough rolling frame and manufacturing method thereof
CN104087874A (en) High-speed steel roll and preparation method thereof
CN103993217B (en) The preparation method of Large Crusher tup
CN101773935A (en) High speed steel compound roll and manufacture method thereof
CN102277532A (en) Cold working mold steel Cr8 and production method thereof
CN1067443C (en) Multi-element w-alloy cast iron roll collar and its making technology
CN104164611A (en) Heat-resistant nodular cast iron injection mold
CN103614658A (en) High-strength wear-resistant low-carbon steel material and preparation method thereof
CN103215526B (en) Centrifugally-cast high-carbon high-alloy steel and heat treatment method thereof
CN106282747A (en) A kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block and preparation method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170104

RJ01 Rejection of invention patent application after publication