CN108149156A - A kind of big specification high uniformity abrasion-resistant stee and its manufacturing method - Google Patents
A kind of big specification high uniformity abrasion-resistant stee and its manufacturing method Download PDFInfo
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- CN108149156A CN108149156A CN201711338830.5A CN201711338830A CN108149156A CN 108149156 A CN108149156 A CN 108149156A CN 201711338830 A CN201711338830 A CN 201711338830A CN 108149156 A CN108149156 A CN 108149156A
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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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
- C22C38/18—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
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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- 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)
- Heat Treatment Of Steel (AREA)
Abstract
A kind of big specification high uniformity abrasion-resistant stee, the chemical composition of the steel is C by weight percentage：0.1 0.6%, Mn：4.0 6.0%, Si：0.30 0.60%, Cr：0 3.0%, Ni：0 2.0%, Mo：0 1.0%, S≤0.030%, P≤0.030%, remaining is Fe and inevitable impurity.The maximum gauge specification of steel plate of the present invention can reach more than 400mm, and under the conditions of air-cooled, the surface of steel and centre hardness can reach more than HB600, and template is excellent, while be also equipped with good impact flexibility.Novel big specification wear-resisting workpiece steel of the present invention, when steel plate thickness specification reaches 400mm, also with higher toughness under the premise of with higher hardness, even tissue simultaneously, center portion and surface property gap are small, workpiece dense structure, steel is pure, and the performance at each position is uniform.Steel of the present invention is particularly suitable for the wear-resisting steel workpiece of big cross section, such as autogenous tumbling mill/semi-autogenous mill liner plate etc., be a kind of structure property it is uniform, it is of low cost and with superior abrasion resistance steel grade.
Description
Technical field
The present invention relates to technical field of alloy steel more particularly to a kind of big specification high uniformity abrasion-resistant stee and its manufacturers
Method.
Background technology
In the industrial trades such as metallurgy, mine, electric power, building materials, the broken of material, grinding etc. will use a large amount of big
The wear-resisting steel workpiece of specification, typical products such as liner plate subject different degrees of abrasion and impact, lead to the use of wear-resisting steel workpiece
Service life is shorter, replaces frequently, consumption is very big, is main vulnerable part.The maximum specification of existing wear-resisting steel plate is usually no more than
80mm, for larger crushing plant, the bulky of wear-resisting steel workpiece, thickness specification is commonly greater than 300mm.Big specification is wear-resisting
Steel workpiece is primarily subjected to wear and impact in use, and weight only has 20% to the 30% of original weight after End Of Service,
Sometimes it is even lower, therefore the requirement for workpiece centre hardness and wearability steps up.In order to improve the quenching degree of material
And hardenability, there are many alloying element addition of carbon and raising quenching degree, and the big wear-resisting steel workpiece material of specification mainly has polynary at present
Steel alloy, Cr series white cast iron etc. are produced using the method for casting, both pollute environment, and all kinds of metallurgical imperfections are also difficult to control, punching
It is very low to hit toughness；Above-mentioned material such as uses the forming method of forging or punching press by steel plate machine-shaping for target workpiece shape
Semi-finished product, during machine-shaping, forming defect is easily occurred by workpiece, including cracking etc., cause molding fail.
Invention content
In view of above analysis, the present invention is intended to provide a kind of novel big specification wear-resisting workpiece steel, carbon, middle manganese horse in
Family name's body composition of steel mentality of designing, emphasis is the content by controlling manganese, and the Ac3 temperature of material is greatly reduced, while improves Ovshinsky
The stability of body；It is cooled down using air-cooled or furnace cooling condition, you can acquisition template is excellent, and has good impact flexibility
Big specification wear-resisting workpiece.
The purpose of the present invention is mainly achieved through the following technical solutions：
A kind of big specification high uniformity abrasion-resistant stee, the chemical composition of the steel is C by weight percentage：0.1-
0.6%, Mn：4.0-6.0%, Si：0.30-0.60%, Cr：0-3.0%, Ni：0-2.0%, Mo：0-1.0%, S≤
0.030%, P≤0.030%, remaining is Fe and inevitable impurity.
Further, the Mn in the steel is 4.5-5.5% by weight percentage.
The abrasion-resistant stee of the present invention is the martensite steel of middle manganese content, and manganese content is 5% or so, is reasonably matched with carbon
Greatly improve the quenching degree of steel and the stability of austenite.Existing low manganese content abrasion-resistant stee, core structure cannot be needle-shaped
Martensite, therefore centre hardness is too low；And manganese content is excessively high, retained austenite increases than regular meeting in the matrix of steel, causes
The shortcomings that matrix hardness is relatively low, and wearability is insufficient.
Further, the chemical composition in the steel is Cr by weight percentage：0.5-1.5%, Ni：0.5-
1.5%, Mo：0-0.5%.
Chromium, nickel and molybdenum in the present invention can improve the quenching degree of steel and anti-corrosion wear performance.
Further, the steel is martensite steel, and matrix is mainly acicular martensite and a small amount of retained austenite.
The steel of the present invention is martensite steel, and the matrix of predominantly acicular martensite causes the steel with good resistance to
Grind performance.
Further, the case hardness of the steel is HB500-650, and its centre hardness is not less than case hardness
90%；Room temperature impact work(AkvIn 20J/cm2More than.
Further, the thickness specification of the steel is up to 400mm.
Existing wear-resisting steel plate is generally 50mm or 80mm steel plates, and maximum specification is usually no more than 80mm, and of the present invention
Steel can reach the thickness specification of 400mm, be particularly suitable for the wear-resisting steel workpiece of big cross section, such as autogenous tumbling mill/semi-autogenous mill lining
Plate etc., be a kind of structure property it is uniform, it is of low cost and with superior abrasion resistance steel grade.
The present invention also provides a kind of manufacturing method of the big specification forging of high uniformity abrasion-resistant stee, using converter or electric furnace smelting
Refining carries out continuous casting after external refining or molding, strand is fitted into heating furnace after cogging and heats, using hot method for forging and molding
Big specification forging is prepared, forging rolling postcooling obtains big specification forging.
Further, strand is fitted into after cogging in heating furnace, is heated under 1150-1220 DEG C of temperature condition；Hot forging
It is 1150 DEG C to make molding starting forging temperature, and final forging temperature is 950-1050 DEG C.
Further, during forging rolling, roughing rolling 1-3 passages, finish rolling rolling 1-15 passages.
Further, air-cooled or furnace cooling is carried out after forging rolling.
To ensure all to be changed into martensite in whole cross section, existing wear-resisting steel workpiece needs to obtain by quenching high hard
Degree, high intensity usually select the sufficiently strong hardening media of cooling capacity, such as the hardening medias such as water, oil, to ensure workpiece center portion
There is sufficiently high cooling velocity.But the brittleness of martensite is very big, has larger quenching internal stress inside steel part quench in addition after, because
And should not directly it apply, it is necessary to carry out temper.Wear-resisting workpiece prepared by the method for the invention is in extremely slowly cooling
Under the conditions of, such as air-cooled or furnace cooling remains to obtain martensite/austenite tissue, the steel plate of 400mm is more than for thickness specification,
Under the conditions of air-cooled, surface and centre hardness can reach more than HB600, and template is excellent, while be also equipped with good impact
Toughness.Simple production process of the present invention, it is cheap, and have excellent performance, the system especially suitable for the wear-resisting steel workpiece of big specification
It makes.Using steel board of the present invention, workpiece (the section thickness maximum of big specification section is prepared by way of die forging
400mm), it is air-cooled after forging, water cooling and temper are not required to, and the stress of workpiece is small, save technique, manufacturing cost is low.
The present invention has the beneficial effect that：
The present invention is intended to provide a kind of novel big specification wear-resisting workpiece steel, carbon, middle manganese martensite steel are into setting up separately in
Thinking is counted, wherein manganese content is 5% or so, and the Ac3 of material can be greatly reduced using chemical composition formula of the present invention
Temperature, while the stability of austenite is improved, it remains to obtain martensite/austenite tissue under extremely slow cooling condition,
Without carrying out water cooling and tempering process again.The maximum gauge specification of steel plate of the present invention can reach more than 400mm, in air-cooled item
Under part, the surface of steel and centre hardness can reach more than HB600, and template is excellent, while it is tough to be also equipped with good impact
Property.
Novel big specification wear-resisting workpiece steel of the present invention, when steel plate thickness specification reaches 400mm, with higher hard
Also there is higher toughness, while even tissue, center portion and surface property gap are small, workpiece dense structure, steel under the premise of degree
Matter is pure, and the performance at each position is uniform.Steel of the present invention is particularly suitable for the wear-resisting steel workpiece of big cross section, such as autogenous tumbling mill/
Semi-autogenous mill liner plate etc., be a kind of structure property it is uniform, it is of low cost and with superior abrasion resistance steel grade.
Steel plate of the present invention may be used hot method for forging and molding and prepare big specification forging, without again using traditional
Casting and molding method avoids a series of negative influences possessed by original casting method, reduces production cost, reduces money
Source and energy consumption, reduce environmental pollution.
It is air-cooled after wear-resisting steel workpiece forging of the present invention, it is not required to water cooling and temper, and the stress of workpiece
Small, simple production process is cheap, and steel is had excellent performance, and disclosure satisfy that the performance requirement of big cross section workpiece, especially
With higher toughness, especially suitable for the manufacture of the wear-resisting steel workpiece of big specification, product tissue and performance uniformity are good, tissue
Predominantly acicular martensite and a small amount of retained austenite, case hardness can reach HB500 to HB650, and centre hardness is not less than
The 90% of case hardness, room temperature impact work(can reach Akv20J/cm2More than.
Other features and advantages of the present invention will illustrate in the following description, also, part can become from specification
It obtains it is clear that being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted method is realized and is obtained in book, claims, attached drawing and specific embodiment.
Description of the drawings
Attached drawing is only used for showing the purpose of specific embodiment, and is not considered as limitation of the present invention, in entire attached drawing
In, identical reference mark represents identical component.
Fig. 1 is the optics microstructure of abrasion-resistant stee of the present invention.
Fig. 2 is the XRD diagram of abrasion-resistant stee of the present invention.
Specific embodiment
With reference to embodiment, the invention will be further described, and the embodiment of the present invention can be used for illustrating the original of the present invention
Reason.
Big specification high uniformity abrasion-resistant stee involved in the present invention, the chemical composition that the ladle contains have C, Mn, Si, Cr, Ni,
Mo, S and P, remaining is Fe and inevitable impurity.
Preferably, C is by weight percentage 0.1-0.6%, and carbon is the stabilization of austenite for improving steel, is had strong
Strong solution strengthening effect.When carbon content is relatively low, then the hardness of product is insufficient；When carbon content is excessively high, then toughness of products is poor.This
Invent the abrasion-resistant stee for big specification high uniformity, it is desirable that workpiece has excellent wear-resisting property and hardness, considers and other each members
Proper Match between element, therefore the content range of control carbon is 0.1-0.6wt.%.
Preferably, Si is by weight percentage 0.30-0.60%, and silicon is one of deoxidant element in steel, is had simultaneously
Certain solution strengthening effect, but excessive silicon is unfavorable to the toughness and welding performance of steel.The present invention is big specification high uniformity
Abrasion-resistant stee, it is desirable that workpiece have excellent toughness and welding performance, therefore summary consider, in conjunction with other each elements
Between Proper Match, present invention control silicone content ranging from 0.30-0.60wt.%.
Preferably, Mn is by weight percentage 4-6%, and manganese is one of important element of the present invention, and manganese element can carry
The stability of high austenite reasonably matches the quenching degree that can greatly improve steel with carbon, makes heavy in section steel air-cooled
Even under conditions of furnace cooling, center portion remains to form martensitic structure, and mechanical property is suitable with surface；When manganese content is too low, quench
Permeability is inadequate, and core structure cannot get acicular martensite, and centre hardness is too low, not meet hardness requirement；Manganese content is excessively high, then residual
Remaining austenite ratio is higher, and matrix hardness is relatively low, and wearability is insufficient.Consider the wearability of steel, matrix feature and hard
It spends, Proper Match between consideration and other each elements, manganese content ranging from 4-6wt.% in steel of the present invention, further preferably
4.5-5.5wt.%.
Preferably, Cr is by weight percentage 0-3.0%, and chromium is to improve the quenching degree of steel and anti-corrosion wear performance
Important element, but excessively high chromium can reduce processability and weldability, and the wear-resisting property and processing welding performance of the comprehensive present invention will
It asks, considers the Proper Match between other each elements, present invention control chromium content range is 0-3.0wt.%, further preferably
0.5-1.5wt.%.
Preferably, Ni is by weight percentage 0-2.0%, and nickel can improve the quenching degree of steel, it is tough to significantly improve low temperature
Property, the corrosion resisting property of steel is improved, according to demand of the steel plate of the present invention to corrosion resisting property, considers between other each elements reasonable
Match, present invention control nickel content ranging from 0-2.0wt.%, further preferably 0.5-1.5wt.%.
Preferably, Mo is by weight percentage 0-1.0%, and molybdenum can improve the quenching degree of steel, while strengthen crystal boundary, carry
The corrosion resisting property of Gao Gang, with reference to the present invention to be performance demand, consider and other each elements between Proper Match, the present invention
Control molybdenum content ranging from 0-1.0wt.%；Further preferably 0-0.5wt.%.
S and P element in the present invention seriously damage the toughness plasticity of steel as impurity element, it is therefore desirable to distinguish its content
Control is in S≤0.030wt.%, P≤0.030wt.%.
The manufacturing method of wear-resisting steel plate of the present invention, technique include successively：Converter or electric furnace smelting, external refining, slab company
Cast (molding), heating, rolling；The technical parameter controlled in process is as follows：
It is heated being fitted into heating furnace after continuous casting billet or ingot formation, heating temperature is 1150-1220 DEG C, roughing rolling 1-
3 passages, finish rolling rolling 1-15 passages, finishing temperature is 950-1050 DEG C, rolls rear air-cooled or furnace cooling.
The process of abrasion-resistant stee large-size workpiece is prepared using the present invention：
In order to manufacture the wear-resisting steel workpiece of big specification (typical products such as liner plate), steel plate thickness is generally thicker.Using above-mentioned plate
Material prepares the workpiece (section thickness maximum 400mm) of big specification section by way of die forging, air-cooled after forging, after being not required to
Continuous heat treatment.Steel plate is processed into the steel plate semi-finished product with target workpiece shape, passes through hot forging by the way of die forging
Type is caused to prepare, 1150~1220 DEG C of heating temperature, 1150 DEG C of starting forging temperature, 950-1050 DEG C of final forging temperature temperature, sky after forging
It is cold.
By above-mentioned technique, the matrix of the abrasion-resistant stee is mainly acicular martensite and a small amount of retained austenite, for
Section thickness is no more than the workpiece of 400mm, and case hardness can be from HB500 to HB650, and centre hardness is not less than case hardness
90%, room temperature impact work(can reach Akv20J/cm2More than, product tissue and performance uniformity are good.
Embodiment 1
The chemical composition of the present embodiment percentage composition by weight is C：0.25%, Si：0.43%, Mn：4.50%, Cr：
1.22%, Ni：1.25%, Mo：0.31%, S：0.005%, P：0.005%, surplus is Fe and inevitable impurity.Steel plate
Manufacturing process includes：Converter smelting, LF refining, RH refinings, sheet billet continuous casting；It is rolled using heavy and medium plate mill, wherein, heating
1200 DEG C of temperature, 1000 DEG C, rolling thickness 300mm of finishing temperature, rolls rear air-cooled.The steel plate tensile strength of acquisition is 1760Mpa,
Elongation percentage is 7%, case hardness HB550, and room temperature impact work(is 31J.
Embodiment 2
The chemical composition percentage composition by weight of the present invention is C：0.32%, Si：0.48%, Mn：5.02%, Cr：
1.11%, Ni：1.31%, S：0.005%, P：0.015%, surplus is Fe and inevitable impurity.Manufacturing process：Converter smelting
Refining, LF refining, molding；It is rolled using heavy and medium plate mill, wherein, 1220 DEG C of heating temperature, 1050 DEG C of finishing temperature, rolling
Thickness 350mm rolls rear air-cooled.The steel plate tensile strength of acquisition be 2080Mpa, elongation percentage 5%, case hardness HB623, room
Warm ballistic work is 16J.
The mechanics properties testing result of 1 embodiment of the present invention of table, 1 and 2 steel
In conclusion the present invention is intended to provide a kind of novel big specification wear-resisting workpiece steel, carbon, middle manganese martensite in
Composition of steel mentality of designing, wherein manganese content are 5% or so, and material can be greatly reduced using chemical composition formula of the present invention
The Ac3 temperature of material, while the stability of austenite is improved, it remains to obtain martensite/Ovshinsky under extremely slow cooling condition
Body tissue.
Novel big specification wear-resisting workpiece steel of the present invention, when steel plate thickness specification reaches 400mm, with higher hard
Also there is higher toughness, while even tissue, center portion and surface property gap are small, workpiece dense structure, steel under the premise of degree
Matter is pure, and the performance at each position is uniform.Steel of the present invention is particularly suitable for the wear-resisting steel workpiece of big cross section, such as autogenous tumbling mill/
Semi-autogenous mill liner plate etc., be a kind of structure property it is uniform, it is of low cost and with superior abrasion resistance steel grade.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of big specification high uniformity abrasion-resistant stee, which is characterized in that the chemical composition of the steel is C by weight percentage：
0.1-0.6%, Mn：4.0-6.0%, Si：0.30-0.60%, Cr：0-3.0%, Ni：0-2.0%, Mo：0-1.0%, S≤
0.030%, P≤0.030%, remaining is Fe and inevitable impurity.
2. big specification high uniformity abrasion-resistant stee according to claim 1, which is characterized in that the Mn in the steel is with weight percent
Than being calculated as 4.5-5.5%.
3. big specification high uniformity abrasion-resistant stee according to claim 1, which is characterized in that the chemical composition in the steel is with weight
It is Cr to measure percentages：0.5-1.5%, Ni：0.5-1.5%, Mo：0-0.5%.
4. big specification high uniformity abrasion-resistant stee according to claim 1, which is characterized in that the steel be martensite steel, base
Body tissue is mainly acicular martensite and a small amount of retained austenite.
5. big specification high uniformity abrasion-resistant stee according to claim 1, which is characterized in that the case hardness of the steel is
HB500-650, and its centre hardness is not less than the 90% of case hardness；Room temperature impact work(AkvIn 20J/cm2More than.
6. big specification high uniformity abrasion-resistant stee according to claim 1, which is characterized in that the thickness specification of the steel is up to
400mm。
7. a kind of manufacturing method of the big specification forging of any one of claim 1-7 high uniformity abrasion-resistant stees, feature exist
In, using converter or electric furnace smelting, carry out continuous casting after external refining or molding, strand be fitted into heating furnace after cogging and heat,
Big specification forging is prepared using hot method for forging and molding, forging rolling postcooling obtains big specification forging.
8. manufacturing method according to claim 7, which is characterized in that strand is fitted into after cogging in heating furnace, in 1150-
It is heated under 1220 DEG C of temperature conditions；The starting forging temperature of hot forging molding is 1150 DEG C, and final forging temperature is 950-1050 DEG C.
9. according to the manufacturing method of claim 7 or 8, which is characterized in that during forging rolling, roughing rolling 1-3 passages, finish rolling
Roll 1-15 passages.
10. according to any one of the claim 7-9 manufacturing methods, which is characterized in that carry out air-cooled or furnace cooling after forging rolling.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136776A (en) * | 2018-07-11 | 2019-01-04 | 马鞍山力搏机械制造有限公司 | A kind of preparation method of high-chromium alloy liner plate |
| CN109457184A (en) * | 2018-12-05 | 2019-03-12 | 鞍钢股份有限公司 | A kind of high-wearing feature steel plate and its production method |
| CN109763072A (en) * | 2019-01-07 | 2019-05-17 | 钢铁研究总院 | A kind of think gauge high-wearing feature steel plate and its manufacturing method |
| CN110468333A (en) * | 2019-09-03 | 2019-11-19 | 昆明理工大学 | A kind of semi-autogenous mill high abrasion ultra-high manganese steel liner plate and preparation method |
| CN115323251A (en) * | 2022-08-24 | 2022-11-11 | 东北大学 | Super-thick, high-strength, high-toughness and high-homogeneity super-thick steel plate for hydropower and manufacturing method thereof |
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| CN103397275A (en) * | 2013-08-09 | 2013-11-20 | 钢铁研究总院 | Martensite series wear-resistant steel and preparation method thereof |
| CN105039861A (en) * | 2015-09-17 | 2015-11-11 | 东北大学 | Medium-manganese and boracic low-alloy abrasion-resistant steel plate and preparing method thereof |
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| JP2001140039A (en) * | 1999-11-18 | 2001-05-22 | Kobe Steel Ltd | Wear resistant cast steel and producing method therefor |
| CN1557984A (en) * | 2004-01-18 | 2004-12-29 | 江苏省机电研究所有限公司 | High hardness high ductility wear-resistant steel |
| CN103397275A (en) * | 2013-08-09 | 2013-11-20 | 钢铁研究总院 | Martensite series wear-resistant steel and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136776A (en) * | 2018-07-11 | 2019-01-04 | 马鞍山力搏机械制造有限公司 | A kind of preparation method of high-chromium alloy liner plate |
| CN109457184A (en) * | 2018-12-05 | 2019-03-12 | 鞍钢股份有限公司 | A kind of high-wearing feature steel plate and its production method |
| CN109763072A (en) * | 2019-01-07 | 2019-05-17 | 钢铁研究总院 | A kind of think gauge high-wearing feature steel plate and its manufacturing method |
| CN110468333A (en) * | 2019-09-03 | 2019-11-19 | 昆明理工大学 | A kind of semi-autogenous mill high abrasion ultra-high manganese steel liner plate and preparation method |
| CN115323251A (en) * | 2022-08-24 | 2022-11-11 | 东北大学 | Super-thick, high-strength, high-toughness and high-homogeneity super-thick steel plate for hydropower and manufacturing method thereof |
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Application publication date: 20180612 |