CN109338228A - A kind of high conductivity anode steel claw steel and preparation method thereof - Google Patents
A kind of high conductivity anode steel claw steel and preparation method thereof Download PDFInfo
- Publication number
- CN109338228A CN109338228A CN201811392307.5A CN201811392307A CN109338228A CN 109338228 A CN109338228 A CN 109338228A CN 201811392307 A CN201811392307 A CN 201811392307A CN 109338228 A CN109338228 A CN 109338228A
- Authority
- CN
- China
- Prior art keywords
- steel
- content
- high conductivity
- anode
- claw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- 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
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
-
- 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
- C21D2211/005—Ferrite
-
- 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
- C21D2211/009—Pearlite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses rigid pawl steel of a kind of high conductivity anode and preparation method thereof, belong to low-alloy steel technical field, the present invention adds trace alloying element, control alloying element total amount and ratio, and cooperate the reasonable tissue composition of preparation process control appropriate, crystallite dimension, obtain the structure-function integration anode steel claw Steel material for having both excellent conductive performance and mechanical property.The composition of above-mentioned steel is by weight percentage are as follows: C:0.01-0.1%, Si:0.01-0.5%, Mn:0.01-1.0%, S≤0.01%, P≤0.02%, Al:0.01-0.5%, V:0.01-0.2%, N:0.004-0.02%, surplus: Fe and inevitable impurity；C, Si, Mn, P, S, Al, V, N meet 0.35%≤(C+Si+Mn+P+S+Al+V+N)≤1.8%, 0.45≤V/ (C+N)≤5.8,0.25≤V/Al≤1.2 simultaneously；The content of ferritic structure is not less than 90% in steel, and the content of pearlitic structrure is not higher than 10%；The average grain size of steel is more than or equal to 20 μm and is less than or equal to 200 μm.The above-mentioned rigid pawl steel of high conductivity anode can be used for the rigid pawl of the anode in electrolytic aluminium.
Description
Technical field
The invention belongs to low-alloy steel technical field more particularly to a kind of high conductivity anode steel claw steel and its preparation sides
Method.
Background technique
China is the maximum country of electrolytic aluminium yield in the world at present, global 58,890,000 tons of yield of electrolytic aluminium in 2016, I
State's electrolytic aluminium yield has reached 31,640,000 tons, and accounting is up to 53.7% in global electrolytic aluminium yield.Electrolytic aluminium belongs to high energy consumption
Industry, power cost accounts for 40% or so of aluminium ingot production cost in electrolytic aluminium cost, according to investigation, aluminum electrolysis process middle-jiao yang, function of the spleen and stomach
The pressure drop of pole steel pawl is to cause the aluminium ingot major reason that the production cost increases.
Anode steel claw is the important connection structure in electrolytic aluminium anode between guide rod and carbon block, be it is a kind of requirement have both good power
Learn the structure-function integration material of performance and electric conductivity: on the one hand, anode steel claw plays connection aluminum guide and clamping anode carbon
The effect of block, since every piece of new anode weighs 700-1000Kg, therefore it is required that anode steel claw has certain intensity and size steady
It is qualitative；In addition, anode steel claw is subjected to the powerful electric current that aluminum electrolysis is passed through electrolytic cell in the process, pass through the flat of each steel pawl
Equal electric current reaches 6800A, therefore it is required that anode steel claw has preferable electric conductivity.
Electrolytic aluminium factory anode steel claw in China's is using there is no industry standard specification at present, each enterprise for cost and it is economical because
Element considers, the mode voluntarily cast is mostly used to produce anode steel claw, also has Some Enterprises with reference to GB/T 31204-2014 " fusible pattern
Cast carbon steel part " it is required as anode steel claw with Steel Properties.Steel claw material alloy total amount produced, impurity in this way
Constituent content is higher, and the higher element of these total amounts can cause distortion of lattice, increases electron scattering probability, increases anode steel claw
Resistance；In addition, using forging type production anode steel claw and easily casting flaws, this kind of steel such as there is shrinkage cavity and porosity, be mingled with
The problem of pawl is due to raw materials for production and technique, resistivity fluctuation is very big, and with the difference of composition and production status, resistivity is reachable
0.25-0.41 μ Ω m or so.In Aluminum Electrolysis Production, the average pressure drop of this kind of anode steel claw is about 50-80mV, will lead to aluminium
The increase of electric energy loss during electrolysis production, to increase aluminium ingot production cost.In addition, the anode produced using forging type
Steel claw material metallurgical quality is poor, and Mechanical Fluctuation is big, and during Aluminum Electrolysis Production, anode steel claw deformed damaged rate is up to
20-35% can also greatly increase Aluminum Electrolysis Production cost.Therefore, there is an urgent need to carry out one kind to have both excellent mechanical performances and lead
The research and development of the structure-function integration anode steel claw steel of electrical property, on the basis of guaranteeing anode steel claw steel mechanical property,
Its electric conductivity is substantially improved, to save electric energy, realizes the purpose for reducing aluminum electrolysis energy consumption and power cost.Meanwhile sun
Required component of the pole steel pawl as Aluminum Electrolysis Production anode has consumption and damage, ton aluminum steel pawl consumption in electrolytic process
About 5kg, according to the annual 6000000 tons of calculating of electrolytic aluminium yield, about 30,000 tons of annual steel pawl demand, as engineering batch application material
Material, cost are unsuitable excessively high.
Summary of the invention
In view of the above analysis, the present invention is intended to provide a kind of high conductivity anode steel claw steel and preparation method thereof, passes through
Trace alloying element, control alloying element total amount and ratio are added, and cooperates preparation process appropriate, material be not significantly increased
On the basis of cost, the structure-function integration anode steel claw Steel material for having both excellent conductive performance and mechanical property is obtained.
The purpose of the present invention is mainly achieved through the following technical solutions:
A kind of rigid pawl steel of high conductivity anode, composition is by weight percentage are as follows: C:0.01-0.1%, Si:0.01-
0.5%, Mn:0.01-1.0%, S≤0.01%, P≤0.02%, Al:0.01-0.5%, V:0.01-0.2%, N:0.004-
0.02%, surplus: Fe and inevitable impurity；
C, Si, Mn, P, S, Al, V, N meet following relationship simultaneously: 0.35%≤(C+Si+Mn+P+S+Al+V+N)≤
1.8%, 0.45≤V/ (C+N)≤5.8,0.25≤V/Al≤1.2；
The content of ferritic structure is not less than 90% in steel, and the content of pearlitic structrure is not higher than 10%；The average crystalline substance of steel
Particle size is more than or equal to 20 μm and is less than or equal to 200 μm.
Further, it forms by weight percentage are as follows: C:0.015-0.052%, Si:0.012-0.33%, Mn:
0.013-0.48%, S≤0.008%, P≤0.016%, Al:0.16-0.25%, V:0.013-0.12%, N:0.005-
0.012%, surplus: Fe and inevitable impurity；Described C, Si, Mn, P, S, Al, V, N meet following relationship simultaneously: 0.42%
≤ (C+Si+Mn+P+S+Al+V+N)≤1.65%, 0.5≤V/ (C+N)≤5.0,0.35≤V/Al≤1.0.
Further, it forms by weight percentage are as follows: C:0.058-0.096%, Si:0.3-0.48%, Mn:0.51-
0.99%, S≤0.005%, P≤0.012%, Al:0.28-0.47%, V:0.13-0.19%, N:0.014-0.018%, it is remaining
Amount: Fe and inevitable impurity；Described C, Si, Mn, P, S, Al, V, N meet following relationship: 0.55%≤(C+Si+Mn simultaneously
+ P+S+Al+V+N)≤1.3%, 1.2≤V/ (C+N)≤4.2,0.45≤V/Al≤0.95.
Further, the content of ferritic structure is 95-99.5% in steel, and the content of pearlitic structrure is 0.5-5%；Institute
The average grain size for stating steel is more than or equal to 50 μm and is less than or equal to 130 μm.
Further, the content of ferritic structure is 96% in steel, and the content of pearlitic structrure is 4%；The steel is put down
Equal crystallite dimension is 57 μm.
A kind of preparation method of high conductivity anode steel claw steel, comprising the following steps:
S1. acquisition slab is smelted and cast to each component according to composition weight percent ingredient and, slab is heated up
Carry out homogeneous heat treatment；
S2. roughing is carried out in austenite recrystallization area；
S3. finish rolling is carried out in the non-recrystallization zone of austenite, is then air-cooled to room temperature.
Further, homogeneous heat treatment condition is to keep the temperature 2-4h at 1120-1280 DEG C in step S1.
Further, in step S2, start rolling temperature is 1100-1230 DEG C, and finishing temperature is 980-1030 DEG C, and roughing is accumulative
Deflection is 20%-40%.
Further, in step S3, start rolling temperature is 880-930 DEG C, and finishing temperature is 830-870 DEG C, and finish rolling is accumulative to be become
Shape amount is 30%-60%.
Further, in step S2, roughing start rolling temperature is 1152-1185 DEG C, and finishing temperature is 992-1012 DEG C, roughing
Accumulative deflection is 25%-33%；In the step S3, finish rolling start rolling temperature is 892-913 DEG C, finishing temperature 835-862
DEG C, it is 44%-56% that finish rolling, which adds up deflection,.
Compared with prior art, the present invention has the beneficial effect that:
1) present invention only passes through addition trace alloying element, control in the case where largely not adding expensive alloying elements
Alloying element total amount and ratio, and cooperate the reasonable tissue composition of preparation process control appropriate, crystallite dimension, it can be little
On the basis of width increases material cost, the structure-function integration anode steel claw for having both excellent conductive performance and mechanical property is obtained
With Steel material, low cost product of the invention, and industrialized production very easy to accomplish, have good Technical Economy and
Extensive application value.
2) high conductivity anode steel claw provided by the invention 0.10~0.15 μ Ω m of steel room temperature resistivity, electric conductivity
40% or more is improved with steel compared with conventional anode steel pawl, 455~598MPa of tensile strength, 283~348Mpa of yield strength.
3) preparation method of high conductivity anode steel claw steel provided by the invention can control tissue composition, the crystal grain of steel
Size cooperates the constituent of steel that steel is made to have both excellent conductive performance and mechanical property in reasonable range.
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 understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book and claims.
Detailed description of the invention
Fig. 1 is the metallographic structure that comparative example 1 amplifies 200 times；
Fig. 2 is the metallographic structure that comparative example 5 amplifies 200 times；
Fig. 3 is the metallographic structure that comparative example 6 amplifies 200 times；
Fig. 4 is the metallographic structure that embodiment 2 amplifies 200 times；
Fig. 5 is the metallographic structure that embodiment 5 amplifies 200 times；
Fig. 6 is the metallographic structure that embodiment 9 amplifies 200 times.
Specific embodiment
Below in conjunction with specific embodiment and comparative example to a kind of high conductivity anode steel claw steel and preparation method thereof make into
The detailed description of one step, these embodiments are served only for the purpose for comparing and explaining, the present invention is not limited in these embodiments.
The present invention provides a kind of rigid pawl steel of high conductivity anode, and composition is by weight percentage are as follows: C:0.01-
0.1%, Si:0.01-0.5%, Mn:0.01-1.0%, S≤0.01%, P≤0.02%, Al:0.01-0.5%, V:0.01-
0.2%, N:0.004-0.02%, surplus: Fe and inevitable impurity；C, Si, Mn, P, S, Al, V, N meet such as ShiShimonoseki simultaneously
System: 0.35%≤(C+Si+Mn+P+S+Al+V+N)≤1.8%, 0.45≤V/ (C+N)≤5.8,0.25≤V/Al≤1.2；Steel
The content of middle ferritic structure is not less than 90%, and the content of pearlitic structrure is not higher than 10%；Average grain size is more than or equal to
20 μm and be less than or equal to 200 μm.
Compared with prior art, the rigid pawl steel of high conductivity anode provided by the invention is not adding precious alloy member largely
In the case where element, addition trace alloying element, control alloying element total amount and ratio, and cooperate preparation process appropriate to control and close
Reason tissue composition, crystallite dimension, can on the basis of material cost is not significantly increased, obtain have both excellent conductive performance with
The structure-function integration anode steel claw Steel material of mechanical property, 0.10~0.15 μ Ω m of room temperature resistivity, tensile strength
455~598MPa, 283~348MPa of yield strength have good Technical Economy and extensive application value.
Specifically, in above-mentioned function high conductivity anode steel claw steel, the effect of each element and proportion are according to as follows:
Carbon (C): carbon belongs to gap solution strengthening element, and carbon can also form V (C, N) the with vanadium, nitrogen in the invention patent
Two-phase is precipitated, and guarantees the intensity of steel by precipitation strength and refined crystalline strengthening, phosphorus content is too low in steel, and the intensity of steel is unable to satisfy
Service performance requirement of the anode steel claw as structural material, therefore its additive amount is not lower than 0.01%；The atomic radius of carbon is very
Small, the Fe in about 0.077nm, Yi Yugang forms interstitial solid solution, causes larger lattice abnormal in octahedral<100>direction
Become, destroys the periodicity of potential field of lattice and increase electron scattering probability, to increase the resistivity of material；Meanwhile carbon is again
The essential element of organizational controls in steel, carbon content is excessively high to make (Fe3C) content of cementite in steel increase, thus increase it is right in steel
The unfavorable pearlitic structrure content of resistivity, declines the electric conductivity of steel, while can also reduce the toughness of material and can weld
Property, in order to avoid the adverse effect of carbon, additive amount should not be greater than 0.1%；Comprehensively consider, the content of carbon should be controlled in 0.01-
In 0.1% range.
Silicon (Si): the effect of silicon is deoxidation, and silicon can be dissolved in the intensity and hardness that steel is improved in ferrite, moreover it is possible to a certain degree
The upper toughness for improving material, while increasing in steel to the relatively advantageous ferritic structure content of electric conductivity, therefore its additive amount
Not lower than 0.01%；But silicon equally will form substitution solid solution in steel and cause distortion of lattice, characteristic of semiconductor energy band
Distribution, will be greatly reduced the effective electron number in solid solution, therefore the resistivity of steel is substantially reduced with the increase of Si content, silicon
The plasticity and toughness of material can be also reduced, and deteriorates the weldability of material, in order to avoid the adverse effect of silicon, additive amount is not answered
Higher than 0.5%；Comprehensively consider, the content of silicon should control within the scope of 0.01-0.5%.
Manganese (Mn): manganese is good deoxidier and desulfurizing agent, red brittleness caused by capable of eliminating because of sulphur, and the heat for improving steel adds
Work performance, manganese can also improve the intensity and toughness of material, therefore its additive amount is not lower than 0.01%；But manganese content is excessively high easily
Cause the manganese in steel to be segregated, form banded structure, causes plasticity, toughness, weldability and the electric conductivity of material to be deteriorated, reduce material
The comprehensive performance of material, in order to avoid the adverse effect of manganese, additive amount should not be greater than 1.0%；Comprehensively consider, the content of manganese should be controlled
System is within the scope of 0.01-1.0%.
Sulphur (S): sulphur is harmful element in steel, not only unfavorable to the intensity of material, welding performance, also easily forms sulfide
It is mingled with, deteriorates the plasticity and toughness of material, therefore should sulfur content in strict control steel；Comprehensively consider, sulfur content should control
0.01% or less.
Phosphorus (P): phosphorus in steel be harmful element, phosphorus content it is excessively high easily in crystal boundary in the form of phosphide segregation or formed area
Domain segregation reduces the plasticity, toughness and welding performance of material, therefore the content of phosphorus is unsuitable excessively high to increase the cold brittleness of steel；It is comprehensive
It closes and considers, phosphorus content should control below 0.02%.
Aluminium (Al): aluminium is the strong deoxidant element in steel, and deoxidizing capacity is more much better than than silicon, manganese, can play refinement crystal grain,
Fixed nitrogen in steel is to significantly improve the effect of steel impact flexibility；Aluminium is ferrite former, is conducive to be formed in steel to resistance to
The relatively advantageous ferritic structure of corrosion, therefore its additive amount is not lower than 0.01%；But aluminium content is excessively high to will increase material
Lattice constant causes more serious distortion of lattice, to deteriorate the electric conductivity of material, while excessive aluminium can capture the present invention
Middle micro alloying element nitrogen forms aluminium nitride, causes the micro alloying element vanadium in steel that can not normally be precipitated and reduce the strong of steel
Degree, and the plasticity and toughness of material are reduced, the comprehensive function of the two can reduce the mechanical property and electric conductivity of steel simultaneously, in order to
The adverse effect of aluminium is avoided, additive amount should not be greater than 0.5%；Comprehensively consider, the content of aluminium should be controlled in 0.01-0.5% model
In enclosing.
Vanadium (V): the harden ability of steel can be improved in vanadium, and fining austenite grains, generate significant dispersion-strengtherning and fine grain is strong
Change effect, vanadium can also form V (C, N) Second Phase Precipitation in conjunction with carbon and nitrogen in the present invention, strong with fine grain by precipitation strength
Change effect improves the intensity and toughness of steel, and improves the welding performance of steel to a certain extent, therefore its additive amount is not lower than
0.01%；But the excessively high temper brittleness that will increase material of content of vanadium, makes the mechanical property of steel be deteriorated, while excessive vanadium can generate
Biggish distortion of lattice and the electric conductivity for reducing steel, in order to avoid the adverse effect of vanadium, additive amount should not be greater than 0.2%；It is comprehensive
It closes and considers, the content of vanadium should control within the scope of 0.01-0.2%.
Nitrogen (N): nitrogen belongs to pernicious gas element in general steel, it is necessary to be controlled by smelting process appropriate lower
Content, and the present invention is using nitrogen as a kind of beneficial micro alloying element, by forming V (C, N) Second Phase Precipitation with carbon and vanadium,
It can be obviously improved the mechanical property of steel, avoid and deliberately control nitrogen bring technique and cost problem, in order to guarantee its compound analysis
The additive amount of effect out, nitrogen is controlled 0.004% or more；But timeliness tendency that nitrogen content is excessively high to increase steel simultaneously and cold
Brittleness and red brittleness damage the welding performance and cold-bending property of steel, while excessive nitrogen is gone back due to that can not be dissolved completely into steel
The stomata metallurgical quality problem of steel can be brought, in order to avoid the adverse effect of nitrogen, additive amount should not be greater than 0.02%；Synthesis is examined
Consider, the content of nitrogen should control within the scope of 0.004-0.2%.
The effect of the total amount of alloying element and the control of alloying element ratio is as follows in the present invention:
0.35%≤(C+Si+Mn+P+S+Al+V+N)≤1.8%: pure iron have excellent electric conductivity, high-purity it is pure
Iron can be used for electrical pure iron, but pure iron, due to lacking solution strengthening element, strength level is limited, is unable to satisfy anode steel claw
Material property requirement as structural member, it is therefore necessary to guarantee there is a certain amount of micro alloying element in steel, therefore in steel
The total amounts of the elements such as C, Si, Mn, P, S, Al, V, N there is the control of lower limit content to require；But the addition of any alloying element,
The variation of effective electron and the change of band structure can be caused by interacting between lattice distortion and constituent element caused by foreign atom
Change, to reduce the electric conductivity of material to varying degrees, anode steel claw needs good conduction as the electrode of electrolytic aluminium
Property, it is therefore necessary to the alloy total amount controlled in steel cannot be excessively high.Test result analysis is taken turns according to laboratory, as (C+Si+Mn+P more
+ S+Al+V+N) etc. elements alloy total amount be lower than 0.35% when, even if by the limit processing and heat treatment process control, steel
Intensity is also unable to reach anode steel claw mechanical property requirements；When the alloy total amount of elements such as (C+Si+Mn+P+S+Al+V+N) is higher than
When 1.8%, the distortion of lattice as caused by excessive alloying element is excessive, and resistivity is higher, is unable to satisfy leading for anode steel claw
Requirement on electric performance.Comprehensively consider material for anode steel claw mechanical property and electric conductivity demand, should control C, Si in steel,
The total amount of the elements such as Mn, P, S, Al, V, N is 0.35%≤(C+Si+Mn+P+S+Al+V+N)≤1.8%.
0.45≤V/ (C+N)≤5.8: the invention patent is the unfavorable shadow for avoiding alloying element from being added to steel electric conductivity
It rings, different-alloy element additional amount and addition total amount is controlled, this can bring the problem of hardness of steel deficiency, in order to solve
This problem, the miscible precipitate V (C, N) that the present invention mainly passes through the elements such as carbon, nitrogen, vanadium are strengthened, this small and dispersed
Precipitate on the one hand can pass through in Grain boundary pinning, prevent the Austenite Grain Growth in heating process；In addition it is recrystallizing
The recrystallization that can also prevent deformed austeaite in the process, delays growing up for recrystal grain, to play the role of refined crystalline strengthening；
In addition, the Precipitation of carbonitride can play the role of precipitation strength by dislocation and the intergranular reciprocation of precipitation；
Simultaneously as the affinity of vanadium and nitrogen is very strong, the free nitrogen in steel can be absorbed, reduce nitrogen to the unfavorable shadow of steel mechanical property
It rings.Kind schedule of reinforcement, which mainly passes through, adds a small amount of microalloy element realization, by the refined crystalline strengthening and precipitation strength of V (C, N)
Effect, can be significantly increased the intensity of material on the basis of alloy total amount in steel is not significantly increased；Since its alloy content increases
Added with limit, and without the distortion of lattice problem that solution strengthening is caused, it can guarantee the electric conductivity of material to the full extent,
The mechanical property and electric conductivity demand of material can reasonably be taken into account.It should be noted that the elements such as carbon, nitrogen, vanadium is compound
Precipitate includes the form of VN, VC and V (C, N), with the difference of three kinds of element ratios, even if precipitate is all V (C, N), yuan
Plain occupy-place score is also not quite similar, it is necessary to assure the reasonable V of element occupy-place score (C, N) precipitation can guarantee that kind is precipitated in it
Quantity and precipitate form is precipitated in class, plays strengthening effect needed for guaranteeing material property.Test knot is taken turns according to laboratory more
Fruit analysis, when V/ (C+N) is lower than 0.45, the occupy-place score of vanadium is too low in precipitate, and the occupy-place score of carbon and nitrogen is excessively high, cannot
Effective miscible precipitate is formed, and the nitrogen of high level can also deteriorate the metallurgical quality and mechanical property of material；As V/ (C+N)
When higher than 5.8, the occupy-place score of vanadium is excessively high in precipitate, and without enough carbon and nitrogen compound precipitation therewith, vanadium is mostly to be dissolved shape
State exists, and strengthening effect is very little.Comprehensively consider, the ratio that should control the elements such as V, C and N in steel is 0.45≤V/ (C+
N)≤5.8。
0.25≤V/Al≤1.2: vanadium mainly passes through the compound precipitation of form of V (C, N) with carbon and nitrogen in the present invention, in order to
Guarantee its reasonable precipitation state, must just control reasonable carbon, vanadium and nitrogen content in steel.In view of steel is in smelt production
In, necessarily contain a certain amount of oxygen, the oxygen in steel can occur oxidation reaction with vanadium and consume vanadium, lead to V (C, N) miscible precipitate
Middle content of vanadium is too low, can not form effective precipitation.In order to avoid oxygen content excessively high in steel, suitable aluminium can be added as strong
Deoxidier carries out deoxidation to reduce the oxygen content in steel, but aluminium content is excessively high and preferentially can combine to form nitrogen with the nitrogen in steel
Change aluminium, lead in V (C, N) miscible precipitate that nitrogen content is too low, can not equally form effective precipitation, it is therefore necessary to control in steel and close
The aluminium content of reason.The present invention gives aluminium content above and should control in the range in 0.01-0.5%, it is contemplated that aluminium is main
Oxygen, the nitrogen content in steel are influenced, and the influence of oxygen, nitrogen content is mainly reflected in the oxidation to vanadium in steel and reduces and aspect is precipitated,
Therefore reasonable V/Al ratio in steel should be controlled.It takes turns test result analysis according to laboratory more, when V/Al is lower than 0.25, is precipitated
The occupy-place score of vanadium is too low in object, and the nitrogen in steel mainly forms aluminium nitride with aluminium, cannot not only form effective miscible precipitate,
Aluminium nitride is mingled with the metallurgical quality and mechanical property that can also deteriorate material as nocuousness；When V/Al is higher than 1.2, due to aluminium content
The too low deoxidation effect that not can guarantee steel, extra oxygen can aoxidize the vanadium in steel, also result in steel accounting for for vanadium in precipitate
Position score is lower.Comprehensively consider, the ratio that should control V the and Al element in steel is 0.25≤V/Al≤1.2.
In the present invention in steel ferrite, pearlitic structrure and crystallite dimension control action are as follows:
Ferrite: ferrite has body-centered cubic lattic, is interstitial solid solution of the carbon in α-Fe, is carbon steel and low-alloy
Main composition phase in steel.Due to the interstitial void very little in α-Fe, thus its molten carbon ability is very poor, the molten carbon amounts at 727 DEG C
Maximum, up to 0.0218%, as the molten carbon amounts of the decline of temperature is gradually reduced, in room temperature, molten carbon amounts is about 0.0008%, by
Small in ferrite lattice amount of distortion, electric conductivity is excellent, and the electrical pure iron based on ferritic structure is commonly used as Typical Representative
In the electrician trade having higher requirements to class to electric conductivity.Pure ferritic limited strength, but this patent has passed through microalloy
Change mode strengthens ferrite matrix, and emphasis considers its influence to resistivity herein.When ferrite content is lower than in steel
When 90%, other tissues relatively more, resistivity of this heterogeneous structure if pearlite, bainite etc. organize quantity in tissue
It is the sum of different tissues resistivity, the resistivity of the tissues such as steel medium pearlite, bainite is higher than ferrite, and content increases steel
Electric conductivity phase strain differential.Therefore, ferritic structure content in steel should be controlled and be not less than 90%；
Pearlite: pearlite is the eutectoid that austenite occurs that eutectoid reaction is formed by ferrite and cementite, is contained
Carbon amounts is 0.77%, and form is the stratiform complex phase object that ferrite thin layer and cementite interlaminate overlapping, also referred to as sheet pearly-lustre
Body.Pearlite is made of the ferrite and cementite being spaced apart, and wherein ferrite accounting is 88%, and cementite accounting is
12%, this heterogeneous structure will increase phase interface, and resistivity is higher than pure ferritic structure, therefore should try to control its content
And form.In view of pearlite to the detrimental effect of materials conductive performance, steel medium pearlite tissue content should be controlled not higher than 10%.
Granular pearlite can be converted by sheet pearlite by special process means, improved to a certain extent
Its electric conductivity, but this undoubtedly will increase technique controlling difficulty and cost.The present invention is designed by reasonable ingredient, by routine
Technique can play the purpose of control steel medium pearlite tissue content.
The crystallite dimension of steel: it by there is the planar defects such as a large amount of vacancy, dislocation, impurity in the crystal boundary of metal, can regard as
It is the separation layer for having impurity and a large amount of crystal defects, scattering can be introduced as the scattering center in electron-transport and increase resistance.
When crystallite dimension is larger in steel, the crystal boundary in steel is also accordingly reduced, therefore biggish crystallite dimension facilitates reduction electronics and dissipates
It penetrates, improves the electric conductivity of material.But according to Hall-Petch relationship, the intensity and grain size of steel are closely related, dislocation
Must overcome crystal boundary obstacle during the motion just can make deformation go to another crystal grain up by a crystal grain, and crystal grain is thinner
Small, crystal boundary is more, and obstacle is more, and the intensity of material is also higher, on the contrary then strength reduction.In order to guarantee steel as anode steel claw institute
The crystallite dimension of necessary mechanical property requirements, steel cannot be excessive.Test result analysis is taken turns according to laboratory, when average in steel more
When crystallite dimension is less than 20 μm, steel has sufficiently high intensity, but since number of grain boundaries is excessively high, it is general to will increase dramatically electron scattering
Rate and the resistivity for reducing material, are unable to satisfy the electric conductivity requirement that anode steel claw is used as electrode；When crystalline substance average in steel
When particle size is greater than 200 μm, steel is had good conductive property, but intensity is insufficient, is unable to satisfy anode steel claw as structural member
The mechanical property requirements used.Comprehensively consider, the average grain size of steel should control in 20-200 μ m.
It, can be to above-mentioned high conductivity sun in order to further increase the comprehensive performance of above-mentioned high conductivity anode steel claw steel
Pole steel pawl does further adjustment with steel constituent.It is preferred that 1, composition is by weight percentage are as follows: C:0.015-0.052%,
Si:0.012-0.33%, Mn:0.013-0.48%, S≤0.008%, P≤0.016%, Al:0.16-0.25%, V:0.013-
0.12%, N:0.005-0.012%, surplus: Fe and inevitable impurity；Described C, Si, Mn, P, S, Al, V, N meet simultaneously
Following relationship: 0.42%≤(C+Si+Mn+P+S+Al+V+N)≤1.65%, 0.5≤V/ (C+N)≤5.0,0.35≤V/Al≤
1.0。
It is preferred that 2, the weight percent of composition are as follows: C:0.058-0.096%, Si:0.35-0.48%, Mn:0.51-
0.99%, S≤0.005%, P≤0.012%, Al:0.28-0.47%, V:0.13-0.19%, N:0.014-0.018%, it is remaining
Amount: Fe and inevitable impurity；Described C, Si, Mn, P, S, Al, V, N meet following relationship: 0.55%≤(C+Si+Mn simultaneously
+ P+S+Al+V+N)≤1.3%, 1.2≤V/ (C+N)≤4.2,0.45≤V/Al≤0.95.
Further, the content of ferritic structure is 95-99.5% in steel, and the content of pearlitic structrure is 0.5-5%；Steel
Average grain size be more than or equal to 50 μm and be less than or equal to 130 μm.
The present invention also provides a kind of preparation methods of high conductivity anode steel claw steel, include the following steps:
S1. it according to the weight percent ingredient of composition and is smelted and is cast, slab is warming up to 1120-1280 DEG C
It is heat-treated 2-4h；
S2. roughing is carried out in austenite recrystallization area, start rolling temperature is 1100-1230 DEG C, finishing temperature 980-1030
DEG C, roughing adds up deflection 20%-40%；
S3. finish rolling is carried out in the non-recrystallization zone of austenite, start rolling temperature is 880-930 DEG C, finishing temperature 830-870
DEG C, finish rolling adds up deflection 30%-60%, is air-cooled to room temperature after rolling.
In the preparation process in accordance with the present invention, slab evenly heating temperature is 1120-1280 DEG C, and evenly heating temperature is more than 1280 DEG C
When grain structure can be caused coarse because slab heating temperature is excessively high, to reduce the mechanical property of final rolled steel, Wu Faman
Sufficient material mechanical performance requirement；Slab section different parts are not easy uniform austenitic when slab evenly heating temperature is lower than 1120 DEG C
Change, will lead to hot-working difficulty, cause steel surface and center portion performance difference big, Formation cross-section effect.Therefore, slab need to be controlled
Evenly heating temperature is 1120-1280 DEG C.
The slab homogeneous heat treatment time of the present invention is 2-4h, and soaking time is lower than 2 hours, not can guarantee slab internal temperature
Homogeneity；Soaking time is more than 4 hours, will cause grain coarsening and blank surface quality problems in slab, can be deteriorated final
The quality and performance of rolled steel.Therefore, need to control the slab homogeneous heat treatment time is 2-4h.
The present invention is rolled using two-stage control, carries out roughing in austenite recrystallization area, since slab heating was come out of the stove
Inevitably there is temperature drop in journey, temperature drop is about 20-50 DEG C, therefore roughing start rolling temperature is about 1100-1230 DEG C；Roughing is whole
It is too low to roll temperature, incomplete recrystallization section can be entered and roll and generate mixed crystal phenomenon, final rolled steel performance can be deteriorated, therefore
According to start rolling temperature difference, should control finishing temperature is 980-1030 DEG C；Rough rolling process is mainly by austenite recrystallization come thin
Change austenite grain, to provide enough recrystallization accumulation of distortion, while guaranteeing that crystal grain will not be refined too again, roughing is accumulative to be become
Shape amount should be controlled in 20%-40%.
It, should be to temperature extremely after roughing to avoid the incomplete recrystallization section rolling for mixed crystal phenomenon easily occur for the finish rolling stage
The non-recrystallization zone of austenite carries out finish rolling, and should control finish rolling stage start rolling temperature is 880-930 DEG C；Finish rolling finishing temperature is excessively high,
Crystal grain cannot refine, and finish rolling finishing temperature is too low and to will lead to resistance of deformation excessively high, and rolling is difficult, for convenient for rolling and control
The reasonable crystallite dimension of final rolled steel should control finish rolling finishing temperature in 830-870 DEG C of range；The finish rolling stage to tying again
The austenite grain of crystal zone formation applies deformation, can increase austenite crystal interfacial area, and pass through deformation band and high density dislocation
Increase ferrite forming core core, rationally controlling accumulative deflection helps to control final products crystallite dimension, guarantees its mechanical property
It can be required with electric conductivity, therefore should control finish rolling to add up deflection is 30%-60%.It is empty without further heat treatment after rolling
It is cooled to room temperature.
The concrete composition of various embodiments of the present invention and comparative example, alloying element total amount, alloying element ratio, tissue composition and
Average grain size is shown in Table 1, and the technological parameter of preparation method is as shown in table 2.
The composition of 1 comparative example of table and embodiment steel,
Alloying element total amount, alloying element ratio, tissue composition and average grain size
The composition weight percent of high conductivity anode steel claw steel are as follows: C:0.02-0.05%, Si:0.05-0.16%,
Mn:0.05-0.21%, P:0.004-0.011%, S:0.001-0.007%, Al:0.06-0.14%, V:0.04-0.12%,
N:0.007-0.016%, surplus are Fe and inevitable impurity；C, Si, Mn, P, S, Al, V, N meet following relationship simultaneously:
0.353%≤(C+Si+Mn+P+S+Al+V+N)≤0.587%, 0.81≤V/ (C+N)≤3.14,0.43≤V/Al≤1.5；Steel
The content of middle ferritic structure is 92-98%, and the content of pearlitic structrure is 2-8%；42-62 μm of the average grain size of steel.
The technological parameter of 2 embodiment high conductivity anode steel claw steel Preparation Method of table
Homogeneous heat treatment keeps the temperature 2-4h at 1120-1280 DEG C.Roughing start rolling temperature is 1100-1230 DEG C, and finishing temperature is
980-1030 DEG C, adding up deflection is 20%-40%.Finish rolling start rolling temperature is 880-930 DEG C, and finishing temperature is 830-870 DEG C,
It is 30%-60% that finish rolling, which adds up deflection,.
Preferably, roughing is carried out in austenite recrystallization area, start rolling temperature is 1152-1185 DEG C, finishing temperature 992-
1012 DEG C, roughing adds up deflection 25%-33%；Finish rolling, start rolling temperature 892-913 are carried out in the non-recrystallization zone of austenite
DEG C, finishing temperature is 835-862 DEG C, and finish rolling adds up deflection 44%-56%, is air-cooled to room temperature after rolling.
To the embodiment and comparative example steel in table 1 according to GB/T 351-1995 " metal material resistivity measurement method "
Volume resistivity test of the material under room temperature environment is carried out；In addition, respectively according to GB/T 228.1-2010 " metal material
Tension test " and GB/T 229-2007 " metal material Charpy pendulum impact test method " test material room temperature tensile and
Impact property, resistivity and mechanical experimental results are as shown in table 3.
3 comparative example of table and each embodiment room temperature resistivity and mechanical property
Anode steel claw use steel as structural material mechanical property requirements tensile strength >=450MPa, yield strength >=
230MPa；0.15 μ Ω m of room temperature resistivity or less is just able to satisfy anode steel claw and wants as the electric conductivity of application of electrode simultaneously
It asks.
Comparative example 1 is experiment steel, and since carbon content is 0.12% in steel, carbon content is higher than 0.1% carbon that invention requires and contains
Amount requires, and the elongation percentage of steel is 29%, and the contraction percentage of area 42%, room temperature impact function is 98J, and plasticity toughness is lower；This
Outside, higher carbon content causes steel medium pearlite content higher, and steel medium pearlite content is also unsatisfactory for invention and requires up to 15%,
Its resistivity is up to 0.21 μ Ω m, the good comprehensive mechanical property of anode steel claw steel not up to of the present invention and high conduction performance
Purpose of design, tissue group prejudice Fig. 1 in steel.
Comparative example 2 is experiment steel, and the mechanical property of steel meets requirement；But due to C, Si, Mn, P, S, Al, V, N in steel
The alloy total amount of equal elements, more than the present invention claims the requirements of 1.8% alloy total amount, leads to the room temperature resistance of steel up to 1.997%
Rate is up to 0.25 μ Ω m, not up to the high conductivity purpose of design of anode steel claw steel.
Comparative example 3 is experiment steel, and resistivity is 0.14 μ Ω m, and electric conductivity meets requirement；But due in steel
V/ (C+N) ratio be 0.32, lower than the present invention claims 0.45, lead to the occupy-place score mistake of vanadium in complex precipitates in material
Low, the occupy-place score of carbon and nitrogen is excessively high, fails to be formed effective miscible precipitate, thus the tensile strength of material only 431MPa,
Only 225MPa, not up to anode steel claw use steel as the mechanical property requirements of structural material applications to yield strength.
Comparative example 4 is experiment steel, and resistivity is 0.14 μ Ω m, and electric conductivity meets requirement；But due in steel
V/Al ratio be 3.6, more than the present invention claims 1.2, cause the occupy-place score of vanadium in Material cladding precipitated phase too low, fail shape
At effective miscible precipitate, therefore the tensile strength of material only 420MPa, yield strength only 211MPa, not up to anode steel claw
Use steel as the mechanical property requirements of structural material applications.
Comparative example 5 is experiment steel, and mechanical property meets requirement；But since the tissue of steel forms medium pearlite content
Be 12%, higher than the present invention claims 10% content of pearlite in alloy, the relatively high heterogeneous structure of this pearlite ratio can reduce
The electric conductivity of material, therefore the resistivity of material has reached 0.20 μ Ω m, not up to anode steel claw is as application of electrode
Electric conductivity requires, tissue group prejudice Fig. 2 in steel.
Comparative example 6 is experiment steel, and mechanical property meets requirement；But since the average grain size of steel is 18 μm,
It is unsatisfactory for the requirement that average grain size of the present invention is not more than 20 μm, lesser crystallite dimension increases grain boundary area, to mention
Probability of scattering in high electronics conductive process, reduces the electric conductivity of material, therefore the resistivity of material has reached 0.21 μ
Ω m, not up to anode steel claw are required as the electric conductivity of application of electrode, tissue group prejudice Fig. 3 in steel.
Fig. 4-6 is shown in the metallographic structure that material composition amplifies in embodiment 2,5,9.As shown in Table 3, each embodiment anode steel claw
All have good mechanical property with steel, tensile strength in 455-598MPa range, yield strength in 283-348MPa range,
Elongation percentage has excellent in 69-82% range, room temperature impact function in 214-255J range in 44-54% range, the contraction percentage of area
Comprehensive mechanical property；Meanwhile the resistivity of steel has reached 0.10-0.15 μ Ω m, compared with conventional anode steel pawl steel 0.25-
The resistivity of 0.41 μ Ω m reduces 40% or more, shows excellent electric conductivity.Anode steel claw steel of the present invention is same
When meet the requirement of mechanical property and electric conductivity, have good mechanical property and electric conductivity, be a kind of low-cost and high-performance
Anode steel claw Steel material.
High conductivity anode steel claw steel in foregoing invention embodiment, on the basis for having favorable comprehensive mechanical property
On, electric conductivity improves 40% or more with steel compared with conventional anode steel pawl, is a kind of to have both excellent mechanical performances and electric conductivity
High performance anode steel pawl steel.Simultaneously as product of the invention can not largely add expensive alloying elements, not increase substantially
Under the premise of adding material cost, only by addition trace alloying element, control alloying element total amount and ratio, and cooperate appropriate
The reasonable tissue composition of preparation process control, crystallite dimension, can be obtained that good mechanical properties, resistivity are low, comprehensive performance is excellent
Good structure-function integration anode steel claw steel, therefore low cost product of the invention, and industrial metaplasia very easy to accomplish
It produces, there is good Technical Economy and wide application prospect.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of rigid pawl steel of high conductivity anode, which is characterized in that composition is by weight percentage are as follows: C:0.01-0.1%,
Si:0.01-0.5%, Mn:0.01-1.0%, S≤0.01%, P≤0.02%, Al:0.01-0.5%, V:0.01-0.2%, N:
0.004-0.02%, surplus: Fe and inevitable impurity；
Described C, Si, Mn, P, S, Al, V, N meet following relationship simultaneously: 0.35%≤(C+Si+Mn+P+S+Al+V+N)≤
1.8%, 0.45≤V/ (C+N)≤5.8,0.25≤V/Al≤1.2；
The content of ferritic structure is not less than 90% in the steel, and the content of pearlitic structrure is not higher than 10%；The steel is put down
Equal crystallite dimension is more than or equal to 20 μm and is less than or equal to 200 μm.
2. high conductivity anode steel claw steel according to claim 1, which is characterized in that composition is by weight percentage
Are as follows: C:0.015-0.052%, Si:0.012-0.33%, Mn:0.013-0.48%, S≤0.008%, P≤0.016%, Al:
0.16-0.25%, V:0.013-0.12%, N:0.005-0.012%, surplus: Fe and inevitable impurity；The C, Si,
Mn, P, S, Al, V, N meet following relationship: 0.42%≤(C+Si+Mn+P+S+Al+V+N)≤1.65%, 0.5≤V/ (C+ simultaneously
N)≤5.0,0.35≤V/Al≤1.0.
3. high conductivity anode steel claw steel according to claim 1, which is characterized in that composition is by weight percentage
Are as follows: C:0.058-0.096%, Si:0.3-0.48%, Mn:0.51-0.99%, S≤0.005%, P≤0.012%, Al:
0.28-0.47%, V:0.13-0.19%, N:0.014-0.018%, surplus: Fe and inevitable impurity；The C, Si,
Mn, P, S, Al, V, N meet following relationship: 0.55%≤(C+Si+Mn+P+S+Al+V+N)≤1.3%, 1.2≤V/ (C+ simultaneously
N)≤4.2,0.45≤V/Al≤0.95.
4. high conductivity anode steel claw steel according to claim 1-3, which is characterized in that iron element in the steel
The content of body tissue is 95-99.5%, and the content of pearlitic structrure is 0.5-5%；The average grain size of the steel be greater than etc.
In 50 μm and it is less than or equal to 130 μm.
5. high conductivity anode steel claw steel according to claim 1, which is characterized in that ferritic structure in the steel
Content is 96%, and the content of pearlitic structrure is 4%；The average grain size of the steel is 57 μm.
6. the preparation method of high conductivity anode steel claw steel according to claim 1-5, which is characterized in that packet
Include following steps:
S1. acquisition slab is smelted and cast to each component according to composition weight percent ingredient and, slab is heated up and is carried out
Homogeneous heat treatment；
S2. roughing is carried out in austenite recrystallization area；
S3. finish rolling is carried out in the non-recrystallization zone of austenite, is then air-cooled to room temperature.
7. the preparation method of high conductivity anode steel claw steel according to claim 6, which is characterized in that the step S1
Middle homogeneous heat treatment condition is to keep the temperature 2-4h at 1120-1280 DEG C.
8. the preparation method of high conductivity anode steel claw steel according to claim 6, which is characterized in that the step S2
In, start rolling temperature is 1100-1230 DEG C, and finishing temperature is 980-1030 DEG C, and it is 20%-40% that roughing, which adds up deflection,.
9. the preparation method of high conductivity anode steel claw steel according to claim 6, which is characterized in that the step S3
In, start rolling temperature is 880-930 DEG C, and finishing temperature is 830-870 DEG C, and it is 30%-60% that finish rolling, which adds up deflection,.
10. according to the preparation method of high conductivity anode steel claw steel described in claim 6-9, which is characterized in that the step
In rapid S2, roughing start rolling temperature is 1152-1185 DEG C, and finishing temperature is 992-1012 DEG C, and it is 25%- that roughing, which adds up deflection,
33%；In the step S3, finish rolling start rolling temperature is 892-913 DEG C, and finishing temperature is 835-862 DEG C, and finish rolling adds up deflection
For 44%-56%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392307.5A CN109338228B (en) | 2018-11-21 | 2018-11-21 | A kind of high conductivity anode steel claw steel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392307.5A CN109338228B (en) | 2018-11-21 | 2018-11-21 | A kind of high conductivity anode steel claw steel and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109338228A true CN109338228A (en) | 2019-02-15 |
| CN109338228B CN109338228B (en) | 2019-09-27 |
Family
ID=65316869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811392307.5A Active CN109338228B (en) | 2018-11-21 | 2018-11-21 | A kind of high conductivity anode steel claw steel and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109338228B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722603A (en) * | 2019-03-18 | 2019-05-07 | 新疆八一钢铁股份有限公司 | A kind of electrode shell cold-rolled steel sheet of low yield strength high current density |
| CN113322410A (en) * | 2020-02-28 | 2021-08-31 | 宝山钢铁股份有限公司 | High-strength bolt steel with excellent delayed fracture resistance and preparation method thereof |
| CN115747679A (en) * | 2022-08-23 | 2023-03-07 | 云南云铝绿源慧邦工程技术有限公司 | Preparation method of high-performance microalloyed anode steel claw |
| CN116043094A (en) * | 2023-01-09 | 2023-05-02 | 鞍钢股份有限公司 | Copper-clad steel wire manufacturing method for improving heat treatment performance of intermediate wire |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857944A (en) * | 2010-06-13 | 2010-10-13 | 中国铝业股份有限公司 | Anode steel claw material for aluminum electrolysis |
| CN102277539A (en) * | 2011-08-01 | 2011-12-14 | 南京钢铁股份有限公司 | High-strength steel with low yield ratio, high plasticity and ultrafine grain and preparation method thereof |
| CN102292460A (en) * | 2010-01-25 | 2011-12-21 | 新日本制铁株式会社 | Wire material, steel wire, and process for production of wire material |
| CN102691009A (en) * | 2012-05-28 | 2012-09-26 | 牛自院 | High-temperature and high-conductivity alloy material and application thereof in electrode |
| CN104831162A (en) * | 2015-05-07 | 2015-08-12 | 马钢(集团)控股有限公司 | Vanadium-nitrogen micro-alloyed carbon steel, heat treatment technology thereof, production method, and applications |
| CN104894474A (en) * | 2015-07-10 | 2015-09-09 | 东北大学 | V-N microalloyed Q550 grade medium plate and preparation method thereof |
| CN105908091A (en) * | 2016-04-29 | 2016-08-31 | 河北钢铁股份有限公司承德分公司 | Hot rolled reinforced bar for high-impact-toughness 500-MPa anchor rod and production method |
| CN106244926A (en) * | 2016-09-28 | 2016-12-21 | 河钢股份有限公司承德分公司 | A kind of containing vanadium steel used for vehicle transmission shaft and production method thereof |
| CN106435384A (en) * | 2016-09-28 | 2017-02-22 | 河钢股份有限公司承德分公司 | Vanadium-containing automobile structural steel and production method thereof |
| CN107148487A (en) * | 2014-11-05 | 2017-09-08 | 新日铁住金株式会社 | Hot-dip galvanized steel sheet |
| CN108342647A (en) * | 2018-02-28 | 2018-07-31 | 马钢(集团)控股有限公司 | A kind of railway vehicle axis steel and its production method |
| CN108624821A (en) * | 2018-07-04 | 2018-10-09 | 百色皓海碳素有限公司 | The production method and anode steel claw disappearance module of lost foam casting anode steel claw |
-
2018
- 2018-11-21 CN CN201811392307.5A patent/CN109338228B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102292460A (en) * | 2010-01-25 | 2011-12-21 | 新日本制铁株式会社 | Wire material, steel wire, and process for production of wire material |
| CN101857944A (en) * | 2010-06-13 | 2010-10-13 | 中国铝业股份有限公司 | Anode steel claw material for aluminum electrolysis |
| CN102277539A (en) * | 2011-08-01 | 2011-12-14 | 南京钢铁股份有限公司 | High-strength steel with low yield ratio, high plasticity and ultrafine grain and preparation method thereof |
| CN102691009A (en) * | 2012-05-28 | 2012-09-26 | 牛自院 | High-temperature and high-conductivity alloy material and application thereof in electrode |
| CN107148487A (en) * | 2014-11-05 | 2017-09-08 | 新日铁住金株式会社 | Hot-dip galvanized steel sheet |
| CN104831162A (en) * | 2015-05-07 | 2015-08-12 | 马钢(集团)控股有限公司 | Vanadium-nitrogen micro-alloyed carbon steel, heat treatment technology thereof, production method, and applications |
| CN104894474A (en) * | 2015-07-10 | 2015-09-09 | 东北大学 | V-N microalloyed Q550 grade medium plate and preparation method thereof |
| CN105908091A (en) * | 2016-04-29 | 2016-08-31 | 河北钢铁股份有限公司承德分公司 | Hot rolled reinforced bar for high-impact-toughness 500-MPa anchor rod and production method |
| CN106244926A (en) * | 2016-09-28 | 2016-12-21 | 河钢股份有限公司承德分公司 | A kind of containing vanadium steel used for vehicle transmission shaft and production method thereof |
| CN106435384A (en) * | 2016-09-28 | 2017-02-22 | 河钢股份有限公司承德分公司 | Vanadium-containing automobile structural steel and production method thereof |
| CN108342647A (en) * | 2018-02-28 | 2018-07-31 | 马钢(集团)控股有限公司 | A kind of railway vehicle axis steel and its production method |
| CN108624821A (en) * | 2018-07-04 | 2018-10-09 | 百色皓海碳素有限公司 | The production method and anode steel claw disappearance module of lost foam casting anode steel claw |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722603A (en) * | 2019-03-18 | 2019-05-07 | 新疆八一钢铁股份有限公司 | A kind of electrode shell cold-rolled steel sheet of low yield strength high current density |
| CN113322410A (en) * | 2020-02-28 | 2021-08-31 | 宝山钢铁股份有限公司 | High-strength bolt steel with excellent delayed fracture resistance and preparation method thereof |
| CN115747679A (en) * | 2022-08-23 | 2023-03-07 | 云南云铝绿源慧邦工程技术有限公司 | Preparation method of high-performance microalloyed anode steel claw |
| CN116043094A (en) * | 2023-01-09 | 2023-05-02 | 鞍钢股份有限公司 | Copper-clad steel wire manufacturing method for improving heat treatment performance of intermediate wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109338228B (en) | 2019-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109338228B (en) | A kind of high conductivity anode steel claw steel and preparation method thereof | |
| JP5397363B2 (en) | Thick high-strength steel sheet with excellent low-temperature toughness in the heat affected zone by high heat input welding | |
| CN108796363B (en) | High-surface-quality aluminum-coated substrate steel suitable for large deformation and stamping and production method thereof | |
| US11427878B2 (en) | Ultrahigh-strength ultrahigh-toughness and low-density dual-phase lamellar steel plate and preparation method therefor | |
| WO2011013838A1 (en) | High-strength cold-rolled steel sheet and method for producing same | |
| CA3099932C (en) | High-strength double-sided stainless steel clad sheet and manufacturing method therefor | |
| JP7119135B2 (en) | Ultra-high-strength hot-rolled steel sheets and strips with excellent fatigue and hole-expansion properties and their manufacturing methods | |
| JP2012184500A (en) | High tensile strength steel sheet having excellent low temperature toughness in weld heat-affected zone, and method for producing the same | |
| KR20200012953A (en) | Low cost and high formability 1180 MPa grade cold rolled annealed double phase steel sheet and method for manufacturing same | |
| CN101962740A (en) | Ferrite stainless steel for automobile exhaust emission system and manufacturing method thereof | |
| CN111172466B (en) | Plasticity-enhanced cold-rolled dual-phase steel with tensile strength of 590MPa and production method thereof | |
| CN114032455B (en) | Easy-to-weld 800 MPa-grade hot continuous rolling axle housing steel and production method thereof | |
| CN109338219B (en) | Super-thick steel plate for wind power flange and production method thereof | |
| CN109804092B (en) | Cold-rolled steel sheet for flux-cored wire and method for manufacturing same | |
| CN110592491B (en) | High-wear-resistance martensite/austenite dual-phase wear-resistant steel plate and manufacturing method thereof | |
| CN102534376A (en) | Steel plate with excellent low-temperature toughness in large heat-input weld heat affected zone and production method thereof | |
| CN110331344B (en) | Automobile girder steel with stable strength performance and Rm of more than or equal to 600MPa and production method thereof | |
| CN115710668A (en) | Method for designing and preparing 48GPa% strength-elongation product medium manganese steel component | |
| JPH0254417B2 (en) | ||
| CN112662932B (en) | TWIP steel and preparation method thereof | |
| CN114395739A (en) | Niobium-titanium composite reinforced duplex stainless steel and preparation method thereof | |
| CN113046636A (en) | High-corrosion-resistance non-aging steel for food can and preparation method thereof | |
| CN110878401B (en) | Preparation method of 1300 MPa-grade rare earth reverse transformation Q & P steel | |
| CN113681198A (en) | High resistant wire rod and welding wire for gas shielded welding wire that wait for height and splash | |
| WO2023241546A1 (en) | Highly formable and easily phosphated high-manganese cold-rolled steel plate having tensile strength of 1000-1600 mpa, and manufacturing method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |