CN108048744A - A kind of high-tenacity wear-resistant steel and preparation method thereof - Google Patents
A kind of high-tenacity wear-resistant steel and preparation method thereof Download PDFInfo
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- CN108048744A CN108048744A CN201711329811.6A CN201711329811A CN108048744A CN 108048744 A CN108048744 A CN 108048744A CN 201711329811 A CN201711329811 A CN 201711329811A CN 108048744 A CN108048744 A CN 108048744A
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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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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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
- 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
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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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- 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
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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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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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
- 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
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a kind of high-tenacity wear-resistant steel and preparation method thereof, belong to Development of Wear Resistant Steel technical field, and the raw material that technical points include following weight percentage is made：C0.25%~0.4%, Si0.3%~0.7%, Mn0.8%~1.2%, Cr0.5%~1.5%, Ni0.1%~0.5%, Cu0.3%~0.8%, Mo0.1%~0.8%, V0.03%~0.15%, B0.001%~0.005%, S≤0.03%, P≤0.04%, surplus are Fe and impurity；This method comprises the following steps：(1) melting；(2) casting mold；(3) it is heat-treated, the blank of wear-resistant steel part is heated to 925 DEG C~950 DEG C, heat preservation 2~4 carries out austenitizing when small, then quenches, and eliminates stress through 240 DEG C~260 DEG C tempering again after quenching, obtains the wear-resistant steel of finished product.The present invention is intended to provide a kind of high-tenacity wear-resistant steel that price is less expensive, service life is longer and preparation method thereof；For producing Development of Wear Resistant Steel.
Description
Technical field
The present invention relates to a kind of steel alloy, more specifically more particularly to a kind of high-tenacity wear-resistant steel.The present invention relates to simultaneously
And the method for preparing the Development of Wear Resistant Steel.
Background technology
Potassium steel material is still widely used in the equipment easy to wear such as China's building materials metallurgy thermoelectricity mining machinery, with science skill
The continuous development of art, potassium steel material are more and more not suitable with current needs, and searching is a kind of cheap, and abrasion resistance is more preferable
New material come substitute potassium steel just become history certainty.
The content of the invention
The present invention previous purpose be in view of the above shortcomings of the prior art, provide a kind of price it is less expensive, using the longevity
The longer high-tenacity wear-resistant steel of life.
The latter purpose of the present invention be to provide a kind of scientific formulation, heat treatment process it is novel and above-mentioned high-tenacity wear-resistant
The preparation method of steel.
What the previous technical solution of the present invention was realized in：A kind of high-tenacity wear-resistant steel, mainly by following weight
The raw material of percentage is made：C0.25%~0.4%, Si0.3%~0.7%, Mn0.8%~1.2%, Cr0.5%~1.5%,
Ni0.1%~0.5%, Cu0.3%~0.8%, Mo0.1%~0.8%, V0.03%~0.15%, B0.001%~
0.005%th, S≤0.03%, P≤0.04%, surplus are Fe and impurity.
In a kind of above-mentioned high-tenacity wear-resistant steel, the raw material of following weight percentage is further included：Ti0.01%~
0.05% and Nb0.01%~0.02%.
In a kind of above-mentioned high-tenacity wear-resistant steel, the raw material of following weight percentage is further included：Re0.20%~
0.30%.
In a kind of above-mentioned high-tenacity wear-resistant steel, the raw material of following weight percentage is further included：Ca0.03%~
0.18%.
What the latter technique scheme of the present invention was realized in：A kind of method for preparing high-tenacity wear-resistant steel, this method bag
Include following step：
(1) melting is firstly added 80% melting into medium-frequency induction furnace of steel scrap total weight in formula, after to be melted,
Molybdenum-iron, ferrochrome, copper, nickel block are added, after fusing, then will be in remaining 20% steel scrap addition medium-frequency induction furnace；After melting down,
Assay chemistry used ingredient simultaneously adjusts chemical composition, then with deoxidation in silicon calcium powder stove；Add in ferromanganese within 5~12 minutes before molten steel is come out of the stove
And ferrosilicon；Surplus stock is crushed to 2~10mm, in a manner of composite modifier, molten iron is poured in iron notch with molten steel
In bag.It is divided to the deoxidation that two periods added in ferromanganese and ferrosilicon can be more advantageous to molten steel, improves quality of molten steel
(2) casting mold at a temperature of 1480 DEG C~1500 DEG C, qualified molten steel is poured into after Metamorphism treatment in casting mold, is poured
After note keep the temperature 6-9 it is small when, unpack wear-resistant steel part blank.
(3) it is heat-treated, the blank of wear-resistant steel part is heated to 920 DEG C~950 DEG C, heat preservation 2~4 carries out austenite when small
Change, then quench, eliminate stress through 240 DEG C~260 DEG C tempering again after quenching, obtain the wear-resistant steel of finished product.
In a kind of above-mentioned method for preparing high-tenacity wear-resistant steel, in step (1), the time for adding in ferromanganese and ferrosilicon is specific
For：It adds in ferromanganese within 8~12 minutes before molten steel is come out of the stove, adds in ferrosilicon within 5~10 minutes before coming out of the stove.
In a kind of above-mentioned method for preparing high-tenacity wear-resistant steel, in step (3), solution is concentration 3 used by quenching
~7% aqueous sodium carbonate.
The present invention creates after adopting the above technical scheme, by optimizing multi-element low alloy steel chemical composition and heat treatment process
Produce easy to wear zero in the equipment such as a kind of New Kind of Anti-Abrasion steel replacement high manganese steel material production metallurgy, building materials, electric power, mining machinery
Accessory.
Limiting progress reason to the dosage of formula middle part division gold element below, details are as follows：
Si coordinates in smelting process as reducing agent and deoxidation agent, silicon and other elements, is improved the anticorrosive of steel
Performance.Silicon does not form carbide in steel, only forms solid solution.Silicon is the element for reducing austenite phase field, there is reduction Temper brittleness
The effect of property.The too high toughness that can cause steel of silicon declines, thus silicon content is controlled 0.3~0.8% in the Development of Wear Resistant Steel.
Mn parts in steel are solid-solution in ferrite formula austenite, another part formation alloyed cementite containing Mn (Fe,
Mn) 3C, it is to expand austenite phase p-block element p.The major advantage of manganese is to significantly improve quenching degree, and the unfavorable of it is to increase on one side
In addition the superheated susceptivity of big steel also increases temper brittleness, therefore Mn contents are controlled 0.8~1.2% in this Development of Wear Resistant Steel.
Cr can be solid-solution in ferrite and form a variety of carbide with the carbon in steel.Cr main functions in steel are to carry
High-hardenability and solution strengthening effect.Chromium effect unfavorable in steel is increase temper brittleness, thus Cr controls 0.5~
1.5%.
Mo can not only be solid-solution in ferrite, but also can form carbide, and molybdenum, which is present in as single-element in steel, increases tempering
Brittleness, can when have other elements (such as Cr, Mn) for causing temper brittleness with the use of when can but reduce or inhibit temper brittleness.
Mo is also improved quenching degree and strengthens the effect of matrix.Therefore Mo controls are 0.1~0.8% in being formulated.
Ni and Cu forms solid solution in steel, does not form carbide, expands Austria for body phase region, main function has：Gu 1.
2. 3. precipitation strength improves toughness and 4. improves quenching degree for molten reinforcing, when, when elements coordinate, the raising of quenching degree is particularly with CrMn
Significantly, Ni controls are controlled in 0.1~0.5%, Cu 0.3~0.8%.
V and Ti have Grain refinement, improve Development of Wear Resistant Steel intensity and micro V, the Ti of toughness to molten steel Metamorphism treatment energy
Notable crystal grain thinning.
Nb forms Nb in steel4C3And NbN synthesis Nb (CN) play precipitation enhancement and crystal grain thinning, therefore Nb in formula
Content is controlled 0.01~0.02%.
Its main function of Re have 1. cleaning molten steel 2. improve clamping distribution 3. improve tissue, crystal grain thinning, eliminate column crystal
And 4. Widmannstatten structure improves the performance of steel, on intensity substantially without influence, improve impact flexibility.Therefore the addition in being wherein formulated
For 0.20%~0.30%.
Present invention optimizes the chemical compositions of ZG35CrSiMn, are with the addition of Mo, Ni, Cu, B and Nb element, using compound change
Matter agent carries out Metamorphism treatment to molten steel, improves the hardenability of material, quenching degree, while also improves material impact flexibility.
This steel after heat treatment, hardness HRC ＞ 45, impact flexibility ak ＞ 30J/cm2, there is excellent abrasive wear resistant weld deposit
Can, this steel mode of production is simple, is produced available for common intermediate frequency stove, easily realizes and produces in enormous quantities.It can substitute in production big absolutely
Part potassium steel, service life are 1.5~2.5 times of common potassium steel.With higher economic benefit and social benefit.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, but does not form to any of the present invention
Limitation.
A kind of high-tenacity wear-resistant steel of the present invention is mainly made of the raw material of following weight percentage：C0.25%~
0.4%th, Si0.3%~0.7%, Mn0.8%~1.2%, Cr0.5%~1.5%, Ni0.1%~0.5%, Cu0.3%~
0.8%th, Mo0.1%~0.8%, V0.03%~0.15%, B0.001%~0.005%, S≤0.03%, P≤0.04%, it is remaining
It measures as Fe and impurity.
Preferably, the raw material of following weight percentage is further included in formula：Ti0.01%~0.05% and Nb0.01%~
0.02%.
Preferably, the raw material of following weight percentage is further included in formula：Re0.20%~0.30%.
Preferably, the raw material of following weight percentage is further included in formula：Ca0.03%~0.18%.
A kind of method for preparing above-mentioned high-tenacity wear-resistant steel, this method comprise the following steps：
(1) melting is firstly added 80% melting into medium-frequency induction furnace of steel scrap total weight in formula, after to be melted,
Molybdenum-iron, ferrochrome, copper, nickel block are added, after fusing, then will be in remaining 20% steel scrap addition medium-frequency induction furnace；After melting down,
Assay chemistry used ingredient simultaneously adjusts chemical composition, then with deoxidation in silicon calcium powder stove；Add in manganese within 8~12 minutes before molten steel is come out of the stove
Iron adds in ferrosilicon in 5~10 minutes before coming out of the stove；Surplus stock is crushed to 2~10mm, in a manner of composite modifier, with
Molten steel is poured in iron notch in ladle；
(2) casting mold at a temperature of 1480 DEG C~1500 DEG C, qualified molten steel is poured into after Metamorphism treatment in casting mold, is poured
After note keep the temperature 6-9 it is small when, unpack wear-resistant steel part blank；
(3) it is heat-treated, the blank of wear-resistant steel part is heated to 925 DEG C~950 DEG C, heat preservation 2~4 carries out austenite when small
Change, then in the aqueous sodium carbonate that concentration is 3~7% of quenching, eliminate stress through 240 DEG C~260 DEG C tempering again after quenching, obtain into
The wear-resistant steel of product.
Influence of the difference cooling medium to New Kind of Anti-Abrasion structure of steel and mechanical property is different.Air-cooled acquisition bainite,
The New Type Bainite tissue of ferrite and retained austenite composition, oil cooling, waterglass is cold and water cooling after the tissue that obtains be by horse
The heterogeneous structure of family name's body, bainite and retained austenite composition.With the increase of medium cooling capacity, be conducive to improve new anti-
Grind the comprehensive performance of steel.Preferable tough ratio in order to obtain, soft spots generates after preventing heat treatment, the application use concentration for 3~
7% aqueous sodium carbonate so that its impact flexibility is significantly improved.
Industrial experimentation
With the vertical shaft cracking hammer head for the diameter 1.2M that the Development of Wear Resistant Steel produces, used in cement plant, with the common potassium steel longevity
Life compares, and the potassium steel material service life is 4 days, and the Development of Wear Resistant Steel service life of the application is 8 days.Service life is 2 times of potassium steel.
Embodiment provided above is the better embodiment of the present invention, only is used for facilitating illustrating the present invention, not to this hair
The limitation of bright work in any form, any those of ordinary skill in the art, if putting forward skill not departing from the present invention
In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and
Without departing from the technical feature content of the present invention, in the range of still falling within the technology of the present invention feature.
Claims (7)
1. a kind of high-tenacity wear-resistant steel, which is characterized in that it is mainly made of the raw material of following weight percentage：C0.25%
~0.4%, Si0.3%~0.7%, Mn0.8%~1.2%, Cr0.5%~1.5%, Ni0.1%~0.5%, Cu0.3%~
0.8%th, Mo0.1%~0.8%, V0.03%~0.15%, B0.001%~0.005%, S≤0.03%, P≤0.04%, it is remaining
It measures as Fe and impurity.
2. a kind of high-tenacity wear-resistant steel according to claim 1, which is characterized in that it further includes following weight percentage
Raw material：Ti0.01%~0.05% and Nb0.01%~0.02%.
3. a kind of high-tenacity wear-resistant steel according to claim 1, which is characterized in that it further includes following weight percentage
Raw material：Re0.20%~0.30%.
4. a kind of high-tenacity wear-resistant steel according to claim 1, which is characterized in that it further includes following weight percentage
Raw material：Ca0.03%~0.18%.
A kind of 5. method for preparing high-tenacity wear-resistant steel described in any of the above-described claim, which is characterized in that under this method includes
State step：
(1) melting is firstly added 80% melting into medium-frequency induction furnace of steel scrap total weight in formula, after to be melted, then adds
Enter molybdenum-iron, ferrochrome, copper, nickel block, after fusing, then will be in remaining 20% steel scrap addition medium-frequency induction furnace；After melting down, chemical examination
Chemical composition simultaneously adjusts chemical composition, then with deoxidation in silicon calcium powder stove；Add in ferromanganese and silicon within 5~12 minutes before molten steel is come out of the stove
Iron；Surplus stock is crushed to 2~10mm, in a manner of composite modifier, is poured with molten steel in iron notch in ladle；
(2) casting mold at a temperature of 1480 DEG C~1500 DEG C, qualified molten steel is poured into after Metamorphism treatment in casting mold, after cast
Keep the temperature 6-9 it is small when, unpack wear-resistant steel part blank；
(3) it is heat-treated, the blank of wear-resistant steel part is heated to 925 DEG C~950 DEG C, heat preservation 2~4 carries out austenitizing when small, then
Quenching eliminates stress through 240 DEG C~260 DEG C tempering again after quenching, obtains the wear-resistant steel of finished product.
6. a kind of method for preparing high-tenacity wear-resistant steel according to claim 5, which is characterized in that in step (1), add in
The time of ferromanganese and ferrosilicon is specially：It adds in ferromanganese within 8~12 minutes before molten steel is come out of the stove, adds in silicon within 5~10 minutes before coming out of the stove
Iron.
7. a kind of method for preparing high-tenacity wear-resistant steel according to claim 5, which is characterized in that in step (3), quenching
Used solution is the aqueous sodium carbonate of concentration 3~7%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112934383A (en) * | 2021-03-01 | 2021-06-11 | 河北久通耐磨防腐管道有限公司 | Material guiding and feeding component and production process thereof |
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| CN102618792A (en) * | 2012-03-29 | 2012-08-01 | 莱芜钢铁集团有限公司 | High-strength abrasion-resistant steel for engineering machinery and manufacturing method thereof |
| 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 |
| CN103194688A (en) * | 2013-03-28 | 2013-07-10 | 宝山钢铁股份有限公司 | Wear-resistant steel pipe and manufacture method thereof |
| CN103627972A (en) * | 2013-11-07 | 2014-03-12 | 中冶陕压重工设备有限公司 | ZG25MnSY3 casting material and preparation method thereof |
| CN106868420A (en) * | 2017-03-31 | 2017-06-20 | 湖北万鑫精密铸锻股份有限公司 | One kind forging superhigh intensity low-alloy wear-resistant steel and preparation method thereof |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102618792A (en) * | 2012-03-29 | 2012-08-01 | 莱芜钢铁集团有限公司 | High-strength abrasion-resistant steel for engineering machinery and manufacturing method thereof |
| 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 |
| CN103194688A (en) * | 2013-03-28 | 2013-07-10 | 宝山钢铁股份有限公司 | Wear-resistant steel pipe and manufacture method thereof |
| CN103627972A (en) * | 2013-11-07 | 2014-03-12 | 中冶陕压重工设备有限公司 | ZG25MnSY3 casting material and preparation method thereof |
| CN106868420A (en) * | 2017-03-31 | 2017-06-20 | 湖北万鑫精密铸锻股份有限公司 | One kind forging superhigh intensity low-alloy wear-resistant steel and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112934383A (en) * | 2021-03-01 | 2021-06-11 | 河北久通耐磨防腐管道有限公司 | Material guiding and feeding component and production process thereof |
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