CN109457086A - Nb-microalloying abrasion-resistant cast steel material, its application and preparation method - Google Patents
Nb-microalloying abrasion-resistant cast steel material, its application and preparation method Download PDFInfo
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- CN109457086A CN109457086A CN201811634120.1A CN201811634120A CN109457086A CN 109457086 A CN109457086 A CN 109457086A CN 201811634120 A CN201811634120 A CN 201811634120A CN 109457086 A CN109457086 A CN 109457086A
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- 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
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- 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
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
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- 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
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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- 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
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- 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
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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
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Abstract
The invention discloses one kind, the invention discloses a kind of Nb-microalloying abrasion-resistant cast steel material, its application and preparation methods, the wear-resistant cast steel parts manufacture based on niobium alloy effect suitable for ball grinding machine lining board, including alloying component and heat treatment process, belong to metal material technology field.It forms C:0.45-0.55%, Si:0.95-1.05%, Mn:1.5-1.6% by following components by mass percentage, and Cr:4.2-4.8%, Mo:0.75-0.80%, Nb:0.15-0.20%, S≤0.02%, P≤0.03%, Fe are surplus；Niobium element is added and has obtained tiny discontinuously arranged Niobium carbide, plays the role of solution strengthening and pinning crystal boundary, makes the hardness of material, impact flexibility, tensile strength obtains matched well and raising, and the stable wear-resistant liner material of performance, simple process environmental protection are obtained under the air-cooled type of cooling.
Description
Technical field
The present invention relates to a kind of cast steel material, its application and preparation method, more particularly to a kind of abrasion-resistant cast steel material, its
Using and preparation method, be applied to metal material technology field.
Background technique
Ball grinding machine lining board is subjected to the percussion of abrasive material due to liner plate bottom, while guaranteeing wear-resisting property, possesses
Good impact flexibility is particularly important.The lining material being often used has potassium steel, rich chromium cast iron, alloy cast steel etc..In ball mill
Under liner plate operating condition, potassium steel cannot provide enough hardness to guarantee wear-resisting property, and easily-deformable.With hard carbon in rich chromium cast iron
Compound Cr7C3Guarantee wear-resisting property, but toughness is generally relatively low, and alloy content is high, production cost is larger.Martensitic steel alloys
Then due to better toughness, wear-resisting property is better than rich chromium cast iron.
Since cast steel does not have plastic history, the optimization of heat treatment process is the most frequently used side for improving its performance
Method.The distribution of matrix and carbide in wear-resistant material, form, quantity, size etc. can all influence the wearability of material
Energy.The characteristics of Niobium carbide is due to its high-temperature stability and high rigidity is widely used in iron as important alloy element
In base wear-resistant material, as carbide, niobium can largely change the distribution of carbon in alloy.Due to
Other elements are substantially insoluble in Niobium carbide, especially chromium, so niobium is very suitble to use in abrasion-resistant stee.But current
Also undesirable containing chromium abrasion resistant cast steel obdurability in niobium, chromium carbide hardness present in matrix is lower, and niobium element content is higher, increases
Cost of alloy is added, comprehensive mechanical property is to be improved.
Summary of the invention
In order to solve prior art problem, it is an object of the present invention to overcome the deficiencies of the prior art, and to provide one kind
Nb-microalloying abrasion-resistant cast steel material, its application and preparation method, are added micro Nb element, so that increasing in molten steel in the alloy
Nucleation mass point NbC partially instead of the lower chromium carbide of hardness has obtained tiny discontinuously arranged Niobium carbide, has played
The effect of solution strengthening and pinning crystal boundary, so that the hardness of material, and grain structure has been refined, make material impact toughness, tension
Intensity obtains matched well and raising, and the stable wear-resistant liner material of performance, technique letter can be obtained under the air-cooled type of cooling
Monocycle is protected.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of Nb-microalloying abrasion-resistant cast steel material, the alloy have following component and mass percent:
C:0.45-0.55%, Si:0.95-1.05%, Mn:1.5-1.6%, Cr:4.2-4.8%, Mo:0.75-
0.80%, Nb:0.15-0.20%, S≤0.02%, P≤0.03%, Fe are surplus.
A kind of application of Nb-microalloying abrasion-resistant cast steel material of the present invention, can serve as the material for preparing ball mill wearing liner plate
Material.
A kind of preparation method of Nb-microalloying abrasion-resistant cast steel material, includes the following steps:
A. raw material preparation process: using steel scrap, ferrochrome, ferrosilicon, ferro-niobium, pure chromium, pure molybdenum, pure manganese as raw material, and by each original
Material is cleaned out, and is carried out according to the requirement of the component and mass percent of prepared Nb-microalloying abrasion-resistant cast steel material of the present invention
Ingredient, and by each raw material stoving, for use；
B. melting process: using induction melting furnace, carries out melting to dry raw material obtained in the step a, and
The furnace chamber of induction melting furnace is carried out before melting to vacuumize anti-oxidation processing；To raw material carry out induction melting when, first to
Steel scrap, ferrochrome, ferrosilicon, ferro-niobium, pure chromium and pure molybdenum are added in induction melting furnace and carries out melting；After each raw material is melting down, contained
Pure manganese raw material is added into metal bath, continues melting 5-10min for the metal bath of micro niobium alloy, until pure manganese is former
Material is all melting down, obtains niobium manganese alloy molten steel；It is preferred that the smelting temperature for carrying out induction melting is 1550-1650 DEG C；
C. casting and heat treatment procedure: the niobium manganese alloy molten steel obtained in the step b is poured into mold, to mould
It after niobium manganese alloy molten steel in tool solidifies completely, is opened, is then cooled to room temperature, obtain cast steel blank, after then carrying out
Continuous heat treatment process, finally obtains Nb-microalloying abrasion-resistant cast steel material.It is preferred that pouring temperature is 1480-1500 DEG C.To cast steel
The heat treatment process of blank is preferably successively using the combination thermal system technique in homogenizing annealing, quenching and tempering.As
Cast steel blank is first heated to not less than 1100 DEG C heat preservations extremely when carrying out heat treatment process by currently preferred technical solution
Few 2h carries out homogenizing annealing processing, then cools to room temperature with the furnace；Reheat cast steel blank to 900-1020 DEG C heat preservation at least
30min carries out austenitation heat treatment, cooling by air after then cast steel blank is come out of the stove or oily cold be quenched；So
Cast steel blank is subjected to tempering heat treatment in 200-400 DEG C of heat preservation at least 2h afterwards, comes out and cools down cast steel blank to room temperature, finally
Obtain the Nb-microalloying wear-resistant cast steel parts.
The present invention compared with prior art, has following obvious prominent substantive distinguishing features and remarkable advantage:
1. present invention optimizes the alloying proportions of chromium abrasion resistant cast steel in tradition, wherein the Nb element added is in solidification of molten steel
Formed in the process tiny, discontinuous shape Niobium carbide mutually improves the wear-resisting property of material as high hardness wear-resisting；These carbonizations
Object more uniform distribution in the base, partially instead of the existing lower chromium carbide of hardness in the base originally, so that Cr
Element dissolves in matrix, enhances the solid solution strengthening effect of material；Meanwhile the Niobium carbide of high-temperature stable plays pinning crystal boundary work
With, can effectively mention inhibit high temperature under crystal grain abnormal growth, improve effective austenitizing temperature of material, allow the material to
Abundant austenitizing and the hardness of material is improved at high temperature, tensile strength, impact flexibility and wear-resisting property；
2. the present invention is since the harden ability of prepared material is higher, air can be used to be cooled down for hardening media, substantially
Degree reduces quenching stress and reduces production cost simultaneously；
3. wear-resistant material hardness of the present invention is greater than 56HRC, impact flexibility 15-25J/cm2, tensile strength is greater than
1120MPa, preparation method are more environmentally-friendly and simple.
Detailed description of the invention
Fig. 1 is hardness number curve graph of the cast steel blank of the present invention under different quenching.
Fig. 2 is the impact flexibility curve that cast steel blank of the present invention combines 200 DEG C of tempering technique in different quenching
Figure.
Fig. 3 is the hardness and notched bar impact strength relational graph of air-cooled cast steel blank under the different tempering temperatures of the present invention.
Specific embodiment
Above scheme is described further below in conjunction with specific implementation example, the preferred embodiment of the present invention is described in detail such as
Under:
Embodiment one:
In the present embodiment, a kind of preparation method of Nb-microalloying abrasion-resistant cast steel material, based on niobium alloy effect
The preparation method of wear-resistant cast steel parts includes mainly melting process, casting process and heat treatment procedure, includes the following steps:
A. raw material preparation process: using steel scrap, ferrochrome, ferrosilicon, ferro-niobium, pure chromium, pure molybdenum, pure manganese as raw material, and by each original
Material is cleaned out, and carries out ingredient according to the requirement of the component and mass percent of prepared Nb-microalloying abrasion-resistant cast steel material,
And by each raw material stoving, for use；Wear-resistant material ingredient such as the following table 1 in the present embodiment through measuring:
The constituent analysis of ingot casting raw material selected by 1. the present embodiment of table
B. melting process: using 25kg grade induction melting furnaces, melts to the raw material dried obtained in the step a
Refining, and the furnace chamber of induction melting furnace is carried out before melting to vacuumize anti-oxidation processing；It is first when carrying out induction melting to raw material
Steel scrap, ferrochrome, ferrosilicon, ferro-niobium, pure chromium and pure molybdenum are first added into induction melting furnace and carries out melting；After each raw material is melting down, obtain
To the metal bath of trace niobium-containing alloy, pure manganese raw material is added into metal bath, continues melting 10min, until pure manganese
Raw material is all melting down, obtains niobium manganese alloy molten steel；The present embodiment uses pure manganese raw material to be added in the melting later period to reduce melting
Raw material oxidation loss in journey；The smelting temperature for carrying out induction melting is 1550 DEG C；
C. casting and heat treatment procedure: the niobium manganese alloy molten steel obtained in the step b is poured into mold, be poured
Temperature is 1480 DEG C, after the niobium manganese alloy molten steel in mold solidifies completely, is opened, is then cooled to room temperature, cast
Then steel blank carries out subsequent heat treatment technique, finally obtains Nb-microalloying abrasion-resistant cast steel material.At the heat of cast steel blank
Science and engineering skill is preferably successively using the combination thermal system technique in homogenizing annealing, quenching and tempering.Carrying out heat treatment work
When skill, cast steel blank is first heated to 1100 DEG C of heat preservation 2h and carries out homogenizing annealing processing, then cools to room temperature with the furnace；Again plus
Hot-cast steel blank carries out austenitation heat treatment to 1020 DEG C of heat preservation 30min, and it is cold to pass through air after then cast steel blank is come out of the stove
But with oil is cold is quenched, the cold and air-cooled two kinds of cooling mediums of selection oil are quenched；Then by cast steel blank at 300 DEG C
It keeps the temperature 2h and carries out tempering heat treatment, come out and cool down cast steel blank to room temperature, finally obtain the Nb-microalloying abrasion resistant cast steel
Part.
Referring to Fig. 1 and Fig. 3, the present embodiment is tested for the property to obtain to the niobium alloy abrasion resistant cast steel: 1020 DEG C into
The heat preservation of row austenitizing, air-cooled cooling, and preferable hardness can be reached in 300 DEG C of tempering and matched with impact flexibility, at this time
Hardness 56.4HRC, impact flexibility 25J/cm2, tensile strength 1136.9MPa.It joined micro Nb element in the present embodiment,
So that increasing nucleation mass point NbC in molten steel, grain structure is refined, while providing abrasion resistant particles.The present embodiment is in tradition
Adjustment member constituent content on the ingredient of middle chromium abrasion resistant cast steel, and the niobium element for adding 0.19% content is resistance to form high rigidity
Phase is ground, on this basis, carries out melting experiment, performance evaluation is simultaneously explored one kind and be can be improved containing chromium abrasion resistant cast steel obdurability in niobium
Heat treatment process, it is determined that optimal ingredient and heat treatment process range.The niobium element that the present embodiment is added has obtained carefully
Small discontinuously arranged Niobium carbide, plays the role of solution strengthening and pinning crystal boundary, so that the hardness of material, impact flexibility,
Tensile strength obtains matched well and raising, and the stable wear-resisting lining of performance can be obtained under the air-cooled type of cooling and oil quenchinng
Plate material, simple process environmental protection.
Embodiment two:
The present embodiment is basically the same as the first embodiment, and is particular in that:
In the present embodiment, a kind of preparation method of Nb-microalloying abrasion-resistant cast steel material, based on niobium alloy effect
The preparation method of wear-resistant cast steel parts includes mainly melting process, casting process and heat treatment procedure, includes the following steps:
A. this step is the same as example 1；
B. melting process: using 25kg grade induction melting furnaces, melts to the raw material dried obtained in the step a
Refining, and the furnace chamber of induction melting furnace is carried out before melting to vacuumize anti-oxidation processing；It is first when carrying out induction melting to raw material
Steel scrap, ferrochrome, ferrosilicon, ferro-niobium, pure chromium and pure molybdenum are first added into induction melting furnace and carries out melting；After each raw material is melting down, obtain
To the metal bath of trace niobium-containing alloy, pure manganese raw material is added into metal bath, continues melting 5min, until pure manganese is former
Material is all melting down, obtains niobium manganese alloy molten steel；The present embodiment uses pure manganese raw material to be added in the melting later period to reduce fusion process
In raw material oxidation loss；The smelting temperature for carrying out induction melting is 1650 DEG C；
C. casting and heat treatment procedure: the niobium manganese alloy molten steel obtained in the step b is poured into mold, be poured
Temperature is 1500 DEG C, after the niobium manganese alloy molten steel in mold solidifies completely, is opened, is then cooled to room temperature, cast
Then steel blank carries out subsequent heat treatment technique, finally obtains Nb-microalloying abrasion-resistant cast steel material.At the heat of cast steel blank
Science and engineering skill is preferably successively using the combination thermal system technique in homogenizing annealing, quenching and tempering.Carrying out heat treatment work
When skill, cast steel blank is first heated to 1100 DEG C of heat preservation 2h and carries out homogenizing annealing processing, then cools to room temperature with the furnace；Again plus
Hot-cast steel blank carries out austenitation heat treatment to 1020 DEG C of heat preservation 30min, and it is cold to pass through air after then cast steel blank is come out of the stove
But it is quenched, a kind of air-cooled cooling medium is selected to be quenched；Then cast steel blank is returned in 200 DEG C of heat preservation 2h
Burning hot processing, comes out and cools down cast steel blank to room temperature, finally obtains the Nb-microalloying wear-resistant cast steel parts.
Referring to Fig. 1 and Fig. 2, the present embodiment is tested for the property to obtain to the niobium alloy abrasion resistant cast steel: 1020 DEG C into
The heat preservation of row austenitizing, air-cooled cooling, and preferable hardness can be reached in 200 DEG C of tempering and matched with impact flexibility, at this time
Hardness 57.9HRC, impact flexibility 22.92J/cm2.The niobium element that the present embodiment is added has obtained tiny discontinuously arranged niobium
Carbide plays the role of solution strengthening and pinning crystal boundary, so that the hardness of material, impact flexibility, tensile strength obtain well
The stable wear-resistant liner material of performance, simple process environmental protection can be obtained in matching and raising under the air-cooled type of cooling.This implementation
Example provides a kind of wear-resistant cast steel parts manufacturing process based on niobium alloy effect suitable for ball grinding machine lining board.
Combination attached drawing of the embodiment of the present invention is illustrated above, but the present invention is not limited to the above embodiments, it can be with
The purpose of innovation and creation according to the present invention makes a variety of variations, under the Spirit Essence and principle of all technical solutions according to the present invention
Change, modification, substitution, combination or the simplification made, should be equivalent substitute mode, as long as meeting goal of the invention of the invention,
Without departing from Nb-microalloying abrasion-resistant cast steel material of the present invention, it is applied and the technical principle and inventive concept of preparation method,
Belong to protection scope of the present invention.
Claims (7)
1. a kind of Nb-microalloying abrasion-resistant cast steel material, which is characterized in that the alloy has following component and mass percent:
C:0.45-0.55%, Si:0.95-1.05%, Mn:1.5-1.6%, Cr:4.2-4.8%, Mo:0.75-0.80%, Nb:
0.15-0.20%, S≤0.02%, P≤0.03%, Fe are surplus.
2. the application of Nb-microalloying abrasion-resistant cast steel material described in a kind of claim 1, which is characterized in that as preparing ball mill
The material of wear-resistant liner.
3. a kind of preparation method of Nb-microalloying abrasion-resistant cast steel material, which comprises the steps of:
A. raw material preparation process: using steel scrap, ferrochrome, ferrosilicon, ferro-niobium, pure chromium, pure molybdenum, pure manganese as raw material, and each raw material is clear
Reason is clean, wants according to the component and mass percent of Nb-microalloying abrasion-resistant cast steel material described in prepared claim 1
Carry out ingredient is sought, and by each raw material stoving, for use；
B. melting process: using induction melting furnace, carries out melting to dry raw material obtained in the step a, and molten
The furnace chamber of induction melting furnace is carried out before refining to vacuumize anti-oxidation processing；When carrying out induction melting to raw material, first to induction
Steel scrap, ferrochrome, ferrosilicon, ferro-niobium, pure chromium and pure molybdenum are added in smelting furnace and carries out melting；After each raw material is melting down, obtain containing micro
Pure manganese raw material is added into metal bath, continues melting 5-10min for the metal bath of niobium alloy, until pure manganese raw material is complete
Portion is melting down, obtains niobium manganese alloy molten steel；
C. casting and heat treatment procedure: the niobium manganese alloy molten steel obtained in the step b is poured into mold, in mold
Niobium manganese alloy molten steel solidify completely after, be opened, be then cooled to room temperature, obtain cast steel blank, then carry out subsequent thermal
Treatment process finally obtains Nb-microalloying abrasion-resistant cast steel material.
4. the preparation method of Nb-microalloying abrasion-resistant cast steel material according to claim 3, it is characterised in that: in the step
In b, the smelting temperature for carrying out induction melting is 1550-1650 DEG C.
5. the preparation method of Nb-microalloying abrasion-resistant cast steel material according to claim 3, it is characterised in that: in the step
In c, pouring temperature is 1480-1500 DEG C.
6. the preparation method of Nb-microalloying abrasion-resistant cast steel material according to claim 3, it is characterised in that: in the step
In c, the combination thermal system work in homogenizing annealing, quenching and tempering is successively used to the heat treatment process of cast steel blank
Skill.
7. the preparation method of Nb-microalloying abrasion-resistant cast steel material according to claim 6, it is characterised in that: in the step
In c, cast steel blank is first heated to not less than 1100 DEG C heat preservation at least 2h and carries out homogenizing annealing processing, is then cooled to the furnace
Room temperature；Cast steel blank is reheated to 900-1020 DEG C of heat preservation at least 30min progress austenitation heat treatment, then by cast steel blank
It is cooling by air or oil is cold is quenched after coming out of the stove；Then cast steel blank is carried out in 200-400 DEG C of heat preservation at least 2h
Tempering heat treatment comes out and cools down cast steel blank to room temperature, finally obtains the Nb-microalloying wear-resistant cast steel parts.
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| CN112981068A (en) * | 2021-02-02 | 2021-06-18 | 北京科技大学 | Method for improving toughness of microalloyed ledge steel casting by utilizing deformation induced precipitation |
| CN114381667A (en) * | 2021-12-24 | 2022-04-22 | 鞍钢集团矿业有限公司 | High-toughness high-chromium high-carbon cast steel and heat treatment method thereof |
| CN114959498A (en) * | 2022-06-27 | 2022-08-30 | 枣庄学院 | Wear-resistant steel lining plate material for ball mill and manufacturing method thereof |
| CN115323284A (en) * | 2021-04-25 | 2022-11-11 | 日照东昌铸业股份有限公司 | Boron-rich slag-containing wear-resistant cast steel and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195890A (en) * | 2007-12-04 | 2008-06-11 | 北京工业大学 | High chromium abrasion-proof cast iron abrasive disc and manufacturing method thereof |
| CN101550518A (en) * | 2009-05-11 | 2009-10-07 | 西安国丰机械制造有限责任公司 | Boron-containing multi-element low alloy wear resistant cast steel and preparing method thereof |
| CN101988174A (en) * | 2010-12-06 | 2011-03-23 | 宝钢集团新疆八一钢铁有限公司 | Large-scale ball mill liner and heat treatment method thereof |
| CN102181803A (en) * | 2011-04-28 | 2011-09-14 | 南京工程学院 | Fe-14Mn-6Si-9Cr-5Ni-Nb wear resistant alloy and preparation method thereof |
| CN103060704A (en) * | 2013-02-03 | 2013-04-24 | 马丁青 | Preparation method of low-alloy high-wear-resistance cast steel |
| CN103131955A (en) * | 2013-03-01 | 2013-06-05 | 河南理工大学 | Medium carbon multiple elements low alloy wear resisting steel and production method |
| CN103981449A (en) * | 2014-05-28 | 2014-08-13 | 河南理工大学 | Method for manufacturing low-alloy high-ductility wear-resistant cast steel by utilizing electric arc furnace |
-
2018
- 2018-12-29 CN CN201811634120.1A patent/CN109457086A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195890A (en) * | 2007-12-04 | 2008-06-11 | 北京工业大学 | High chromium abrasion-proof cast iron abrasive disc and manufacturing method thereof |
| CN101550518A (en) * | 2009-05-11 | 2009-10-07 | 西安国丰机械制造有限责任公司 | Boron-containing multi-element low alloy wear resistant cast steel and preparing method thereof |
| CN101988174A (en) * | 2010-12-06 | 2011-03-23 | 宝钢集团新疆八一钢铁有限公司 | Large-scale ball mill liner and heat treatment method thereof |
| CN102181803A (en) * | 2011-04-28 | 2011-09-14 | 南京工程学院 | Fe-14Mn-6Si-9Cr-5Ni-Nb wear resistant alloy and preparation method thereof |
| CN103060704A (en) * | 2013-02-03 | 2013-04-24 | 马丁青 | Preparation method of low-alloy high-wear-resistance cast steel |
| CN103131955A (en) * | 2013-03-01 | 2013-06-05 | 河南理工大学 | Medium carbon multiple elements low alloy wear resisting steel and production method |
| CN103981449A (en) * | 2014-05-28 | 2014-08-13 | 河南理工大学 | Method for manufacturing low-alloy high-ductility wear-resistant cast steel by utilizing electric arc furnace |
Non-Patent Citations (1)
| Title |
|---|
| 戴敦才等: "铬钼铌合金耐磨铸钢的研制", 《铸造》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139394A (en) * | 2019-12-24 | 2020-05-12 | 中钢集团邢台机械轧辊有限公司 | Preparation method of high-performance rough rolling working roll |
| CN111139394B (en) * | 2019-12-24 | 2022-01-11 | 中钢集团邢台机械轧辊有限公司 | Preparation method of high-performance rough rolling working roll |
| CN112981068A (en) * | 2021-02-02 | 2021-06-18 | 北京科技大学 | Method for improving toughness of microalloyed ledge steel casting by utilizing deformation induced precipitation |
| CN112981068B (en) * | 2021-02-02 | 2022-02-11 | 北京科技大学 | Method for improving toughness of microalloyed ledge steel casting by utilizing deformation induced precipitation |
| CN115323284A (en) * | 2021-04-25 | 2022-11-11 | 日照东昌铸业股份有限公司 | Boron-rich slag-containing wear-resistant cast steel and preparation method thereof |
| CN114381667A (en) * | 2021-12-24 | 2022-04-22 | 鞍钢集团矿业有限公司 | High-toughness high-chromium high-carbon cast steel and heat treatment method thereof |
| CN114959498A (en) * | 2022-06-27 | 2022-08-30 | 枣庄学院 | Wear-resistant steel lining plate material for ball mill and manufacturing method thereof |
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