CN105821329A - High-strength and low-chromium forge material and preparing method thereof - Google Patents

High-strength and low-chromium forge material and preparing method thereof Download PDF

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Publication number
CN105821329A
CN105821329A CN201610288416.7A CN201610288416A CN105821329A CN 105821329 A CN105821329 A CN 105821329A CN 201610288416 A CN201610288416 A CN 201610288416A CN 105821329 A CN105821329 A CN 105821329A
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China
Prior art keywords
section
low
high intensity
intensity low
temperature
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Pending
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CN201610288416.7A
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Chinese (zh)
Inventor
汪德发
翟建
徐光清
赵文定
汪礼忠
张国芳
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Ningguo Kaiyuan Electric Power Co Ltd & Anti-Friction Material Plant
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Ningguo Kaiyuan Electric Power Co Ltd & Anti-Friction Material Plant
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Priority to CN201610288416.7A priority Critical patent/CN105821329A/en
Publication of CN105821329A publication Critical patent/CN105821329A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

The invention provides a high-strength and low-chromium forge material and a preparing method thereof. The high-strength and low-chromium forge material comprises, by weight, 1.7%-2.1% of C, 0.7%-1.1% of Mn, 0.4%-0.7% of Ti, 0.2%-0.4% of V, 0.9%-1.3% of Ni, 0.4%-0.9% of Cu, 0.1%-0.3% of Ar, 0.3%-0.9% of Be, 0.7%-1.6% of Mo, 1.1%-1.7% of Cr, 0.5%-0.7% of Si, 0.2%-0.3% of N and the balance Fe and inevitable trace impurity elements. By means of operation steps adopted in the preparing method, the structural strength of the low-chromium forge material is further improved, the low-chromium forge material can be further applied, popularized and produced and machined industrially.

Description

A kind of high intensity low Cr section and preparation method thereof
Technical field
The present invention relates to low Cr section Material Field, be specifically related to a kind of high intensity low Cr section and system thereof Preparation Method.
Background technology
Now with the continuous lifting of scientific and technological level, people the most more come for the requirement of quality of the life The highest, and on the large-scale building machineries such as some minings, usually wear-resisting for equipment Require higher.
Particularly cement building material, metal mine, coal slurry thermoelectricity, Chemical Engineering, ceramic coating, Etc. the retrofit industry of aspect, the low Cr section of employing uses more extensive, but now Low Cr section using in terms of processing, the control of each element in the process of employing and raw material, Make in the low Cr section mechanical strength finally given and wear resistance decrease, it is impossible to meet The requirement that various techniques produce.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of high intensity low Cr section and preparation thereof Method so that the Mechanical Structure Strength of low Cr section is promoted further, and wear-resisting intensity is also To improving, enormously simplify preparation technology simultaneously, further genralrlization application can be carried out.
For realizing object above, the present invention is achieved by the following technical programs:
A kind of high intensity low Cr section, in raw material, the components by weight percent of each element is: C 1.7-2.1%, Mn 0.7-1.1%, Ti 0.4-0.7%, V 0.2-0.4%, Ni 0.9-1.3%, Cu 0.4-0.9%, Ar 0.1-0.3%, Be 0.3-0.9%, Mo 0.7-1.6%, Cr 1.1-1.7%, Si 0.5-0.7%, N 0.2-0.3%, remaining is Fe and the micro impurity element that can not evade.
Preferably, in raw material, the components by weight percent of each element is: C 1.8-2.0%, Mn 0.8-1.0%, Ti 0.5-0.7%, V 0.2-0.3%, Ni 1.0-1.1%, Cu 0.5-0.8%, Ar 0.1-0.2%, Be 0.4-0.7%, Mo 0.9-1.3%, Cr 1.3-1.6%, Si 0.6-0.7%, N 0.2-0.3%, remaining For Fe and the micro impurity element that can not evade.
Preferably, in raw material, the components by weight percent of each element is: C 1.9%, Mn 0.9%, Ti 0.6%, V 0.2%, Ni 1.1%, Cu 0.6%, Ar 0.2%, Be 0.5%, Mo 1.1%, Cr 1.5%, Si 0.7%, N0.3%, remaining is Fe and the micro impurity element that can not evade.
The preparation method of described high intensity low Cr section, operating procedure is as follows:
1), prevent from the scrap iron containing each element carrying out in a furnace adding hot smelting；
2), the liquation after melting is carried out cover half process；
3), by the head product after cover half being placed in electric furnace and heat, heating-up temperature is 860-930 DEG C, trip temperature of going forward side by side insulation operation；
4), by step 3) heating after head product blow operation so that it is air cooling 20-30min； And be placed on rapidly in electric furnace and carry out heating operation, control temperature and be 230-310 DEG C；
5), by step 4) head product carry out air cooling process again, through grinding process after cooling, Obtain.
Preferably, described step 3) in temperature retention time be 2-4 hour.
Preferably, described step 4) in blowing operation control low Cr section temperature be 170-210℃。
The invention provides a kind of high intensity low Cr section and preparation method thereof, by raw material adds Silicon as reducing agent and deoxidizer, it is possible to be obviously improved the elastic limit of low Cr section, surrender strong Degree and tensile strength；Manganese, chromium element have higher intensity and hardness in low Cr section, promote The wearability of low Cr section, and promote low Cr section quenching property in process of production, improve low Cr section Hot-working character；The interpolation of molybdenum element is again such that the crystal grain of low Cr section refines, improves through hardening Property and calorific intensity performance, by the mutual component proportion of element in raw material, the strongest low Chromium forging structural strength, and anti-wear performance.
Preparation method greatly reduces technical operation flow, and production cost, can carry out into one Step popularization and application.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below will knot Close embodiments of the invention, the technical scheme in the embodiment of the present invention is carried out clearly and completely Describe.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
Embodiment 1:
A kind of high intensity low Cr section, in raw material, the components by weight percent of each element is: C 1.9%, Mn 0.9%, Ti 0.6%, V 0.2%, Ni 1.1%, Cu 0.6%, Ar 0.2%, Be 0.5%, Mo 1.1%, Cr 1.5%, Si 0.7%, N0.3%, remaining is Fe and the micro impurity element that can not evade.
Embodiment 2:
A kind of high intensity low Cr section, in raw material, the components by weight percent of each element is: C 1.8%, Mn 1.0%, Ti 0.4%, V 0.3%, Ni 1.3%, Cu 0.4%, Ar 0.1%, Be 0.9%, Mo 1.3%, Cr 1.1%, Si 0.5%, N0.2%, remaining is Fe and the micro impurity element that can not evade.
Embodiment 3:
A kind of high intensity low Cr section, in raw material, the components by weight percent of each element is: C 1.7%, Mn 0.7%, Ti 0.7%, V 0.3%, Ni 1.2%, Cu 0.9%, Ar 0.3%, Be 0.4%, Mo 1.6%, Cr 1.3%, Si 0.5%, N0.3%, remaining is Fe and the micro impurity element that can not evade.
Embodiment 4:
A kind of high intensity low Cr section, in raw material, the components by weight percent of each element is: C 2.1%, Mn 0.8%, Ti 0.5%, V 0.4%, Ni 1.0%, Cu 0.5%, Ar 0.2%, Be 0.7%, Mo 0.7%, Cr 1.6%, Si 0.7%, N0.2%, remaining is Fe and the micro impurity element that can not evade.
Embodiment 5:
A kind of high intensity low Cr section, in raw material, the components by weight percent of each element is: C 2.0%, Mn 1.1%, Ti 0.6%, V 0.2%, Ni 0.9%, Cu 0.8%, Ar 0.1%, Be 0.3%, Mo 0.9%, Cr 1.7%, Si 0.6%, N0.3%, remaining is Fe and the micro impurity element that can not evade.
The preparation method of high intensity low Cr section, operating procedure is as follows:
1), prevent from the scrap iron containing each element carrying out in a furnace adding hot smelting；
2), the liquation after melting is carried out cover half process；
3), by the head product after cover half being placed in electric furnace and heat, heating-up temperature is 860-930 DEG C, trip temperature of going forward side by side insulation operation；
4), by step 3) heating after head product blow operation so that it is air cooling 20-30min； And be placed on rapidly in electric furnace and carry out heating operation, control temperature and be 230-310 DEG C；
5), by step 4) head product carry out air cooling process again, through grinding process after cooling, Obtain.
Step 3) in temperature retention time be 2-4 hour.
Step 4) in blowing operation control low Cr section temperature be 170-210 DEG C.
Above example only in order to technical scheme to be described, is not intended to limit；Although With reference to previous embodiment, the present invention is described in detail, those of ordinary skill in the art It is understood that the technical scheme described in foregoing embodiments still can be modified by it, Or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, not The essence making appropriate technical solution departs from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (6)

1. a high intensity low Cr section, it is characterised in that in raw material, the components by weight percent of each element is: C 1.7-2.1%, Mn 0.7-1.1%, Ti 0.4-0.7%, V 0.2-0.4%, Ni 0.9-1.3%, Cu 0.4-0.9%, Ar 0.1-0.3%, Be 0.3-0.9%, Mo 0.7-1.6%, Cr 1.1-1.7%, Si 0.5-0.7%, N 0.2-0.3%, remaining is Fe and the micro impurity element that can not evade.
2. high intensity low Cr section as claimed in claim 1, it is characterised in that each unit in raw material Element components by weight percent be: C 1.8-2.0%, Mn 0.8-1.0%, Ti 0.5-0.7%, V 0.2-0.3%, Ni 1.0-1.1%, Cu 0.5-0.8%, Ar 0.1-0.2%, Be 0.4-0.7%, Mo 0.9-1.3%, Cr 1.3-1.6%, Si 0.6-0.7%, N 0.2-0.3%, remaining is Fe and the trace that can not evade is miscellaneous Prime element.
3. high intensity low Cr section as claimed in claim 2, it is characterised in that each unit in raw material The components by weight percent of element is: C 1.9%, Mn 0.9%, Ti 0.6%, V 0.2%, Ni 1.1%, Cu 0.6%, Ar 0.2%, Be 0.5%, Mo 1.1%, Cr 1.5%, Si 0.7%, N0.3%, its Remaining is Fe and the micro impurity element that can not evade.
4. the preparation method of the high intensity low Cr section as described in any one of claim 1-3, it is special Levying and be, operating procedure is as follows:
1), prevent from the scrap iron containing each element carrying out in a furnace adding hot smelting；
2), the liquation after melting is carried out cover half process；
3), by the head product after cover half being placed in electric furnace and heat, heating-up temperature is 860-930 DEG C, trip temperature of going forward side by side insulation operation；
4), by step 3) heating after head product blow operation so that it is air cooling 20-30min； And be placed on rapidly in electric furnace and carry out heating operation, control temperature and be 230-310 DEG C；
5), by step 4) head product carry out air cooling process again, through grinding process after cooling, Obtain.
5. the preparation method of high intensity low Cr section as claimed in claim 4, it is characterised in that Described step 3) in temperature retention time be 2-4 hour.
6. the preparation method of high intensity low Cr section as claimed in claim 4, it is characterised in that Described step 4) in blowing operation control low Cr section temperature be 170-210 DEG C.
CN201610288416.7A 2016-04-28 2016-04-28 High-strength and low-chromium forge material and preparing method thereof Pending CN105821329A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106369198A (en) * 2016-08-31 2017-02-01 宁波钱湖石油设备有限公司 Safety valve for reciprocation pump
CN106438261A (en) * 2016-08-31 2017-02-22 宁波钱湖石油设备有限公司 Reciprocation pump power device
CN106438327A (en) * 2016-08-31 2017-02-22 宁波钱湖石油设备有限公司 Power end of reciprocating pump

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1101682A (en) * 1993-10-14 1995-04-19 彭伯勋 Low alloy white cast iron foundery grinding ball for nodular iron ore powder
CN1861828A (en) * 2005-05-11 2006-11-15 江苏共昌轧辊有限公司 Alloy half steel composite roll collar and preparation process thereof
CN101440462A (en) * 2007-11-21 2009-05-27 宝山钢铁股份有限公司 Economical long service life material for mechanical press forging die and manufacturing method thereof
CN103602798A (en) * 2013-12-02 2014-02-26 湖州市银鑫轧辊有限公司 Method for heat treatment on high-hardness semi-steel roller
CN104178693A (en) * 2014-03-31 2014-12-03 浙江机电职业技术学院 High-performance superhigh carbon steel and complex heat treatment process
CN104651752A (en) * 2013-11-18 2015-05-27 铜陵市大明玛钢有限责任公司 Low chromium wear resistant ball and processing technology thereof
CN105088091A (en) * 2015-08-12 2015-11-25 中钢集团邢台机械轧辊有限公司 High-carbon graphitic steel roller ring for profile steel universal mill and manufacturing method of high-carbon graphitic steel roller ring
CN105331794A (en) * 2015-10-28 2016-02-17 中钢集团邢台机械轧辊有限公司 Thermal treatment technology method for high-carbon half-steel roll collar

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1101682A (en) * 1993-10-14 1995-04-19 彭伯勋 Low alloy white cast iron foundery grinding ball for nodular iron ore powder
CN1861828A (en) * 2005-05-11 2006-11-15 江苏共昌轧辊有限公司 Alloy half steel composite roll collar and preparation process thereof
CN101440462A (en) * 2007-11-21 2009-05-27 宝山钢铁股份有限公司 Economical long service life material for mechanical press forging die and manufacturing method thereof
CN104651752A (en) * 2013-11-18 2015-05-27 铜陵市大明玛钢有限责任公司 Low chromium wear resistant ball and processing technology thereof
CN103602798A (en) * 2013-12-02 2014-02-26 湖州市银鑫轧辊有限公司 Method for heat treatment on high-hardness semi-steel roller
CN104178693A (en) * 2014-03-31 2014-12-03 浙江机电职业技术学院 High-performance superhigh carbon steel and complex heat treatment process
CN105088091A (en) * 2015-08-12 2015-11-25 中钢集团邢台机械轧辊有限公司 High-carbon graphitic steel roller ring for profile steel universal mill and manufacturing method of high-carbon graphitic steel roller ring
CN105331794A (en) * 2015-10-28 2016-02-17 中钢集团邢台机械轧辊有限公司 Thermal treatment technology method for high-carbon half-steel roll collar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106369198A (en) * 2016-08-31 2017-02-01 宁波钱湖石油设备有限公司 Safety valve for reciprocation pump
CN106438261A (en) * 2016-08-31 2017-02-22 宁波钱湖石油设备有限公司 Reciprocation pump power device
CN106438327A (en) * 2016-08-31 2017-02-22 宁波钱湖石油设备有限公司 Power end of reciprocating pump

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Application publication date: 20160803