CN106435372A - High-strength steel plate for shelving crosspieces and thermal treatment method thereof - Google Patents

High-strength steel plate for shelving crosspieces and thermal treatment method thereof Download PDF

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CN106435372A
CN106435372A CN201611162742.XA CN201611162742A CN106435372A CN 106435372 A CN106435372 A CN 106435372A CN 201611162742 A CN201611162742 A CN 201611162742A CN 106435372 A CN106435372 A CN 106435372A
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cooled
steel plate
parts
water
air
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王忠义
王正勇
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Suzhou Ke Sheng Storage And Circulation Equipment Co Ltd
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Suzhou Ke Sheng Storage And Circulation Equipment Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/18—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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • C21D2211/001—Austenite

Abstract

The invention discloses a high-strength steel plate for shelving crosspieces, made from, by weight, 0.03-0.05% of C, 8.5-8.7% of Cr, 0.35-0.39% of Si, 0.52-0.63% of Mn, 0.25-0.32% of Ni, 0.25-0.27% of Re, 0.17-0.18% of Ge, 0.45-0.62% of Zr, 0.30-0.33% of W, 0.11-0.13% of Y, 0.13-0.15% of Ti, 0.75-0.77% of Ca, 0.82-0.88% of B, 0.11-0.18% of Mg, 0.13-0.21% of Mo, </=0.03% of S, </=0.02% of P, 0.13-0.26% of rare-earth metal, and the balance of Fe. The contents of elements in the steel plate are controlled such that austenite-martensite structure can be acquired by adding the rare-earth elements, lanthanum, cerium and praseodymium, in conjunction with thermal treatment process; austenite acts as a first phase in the steel plate while martensite acts as a second phase, the second phase accounts for 4.5-4.8% by volume from the surface to 1/4 thickness, and the second phase accounts for6.7-7.1% from 1/4 thickness to the center; therefore, the high-strength steel plate for shelving crosspieces is produced successfully and has excellent transverse yield strength and high plasticity.

Description

A kind of shelf crosspiece high-strength steel sheet and its heat treatment method
Technical field
The present invention relates to a kind of steel plate and its heat treatment method, specifically a kind of shelf crosspiece high-strength steel sheet and Its heat treatment method, belongs to metal smelt technical field.
Background technology
Shelf platform is to build a steel platform and pallets and platforms in the steel construction of one at heavy weight shelving top, for Special material deposit needs, the use condition of shelf and environment are more and more harsher, more and more thicker to the thickness requirement of steel plate, phase The technical requirements of the steel plate for storage facilities also should be improved constantly ground.Especially for depositing some corrosive cargos When, usually can the column of humus body panel and loading steel plate, lead to storage facilities just to damage at short notice, increased storage Cost.The Wear-resistant corrosion-resistant performance therefore how effectively improving shelf steel is the skill that those skilled in the art have always a demand for solving Art problem.
Content of the invention
The technical problem to be solved is, for the shortcoming of above prior art, proposes a kind of shelf crosspiece and uses High-strength steel sheet and its heat treatment method, have strong corrosion resistance, high-ductility, and have excellent low temperature toughness, improve transhipment The service life of bracket.
In order to solve above-mentioned technical problem, the technical scheme is that and be accomplished by：A kind of goods is provided Frame crosspiece high-strength steel sheet, the chemical composition mass percent of described steel plate is：C：0.03-0.05%, Cr：8.5-8.7%, Si：0.35-0.39%, Mn：0.52-0.63%, Ni：0.25-0.32%, Re：0.25-0.27%, Ge：0.17-0.18%, Zr： 0.45-0.62%, W：0.30-0.33%, Y：0.11-0.13%, Ti：0.13-0.15%, Ca：0.75-0.77%, B：0.82- 0.88%, Mg：0.11-0.18%, Mo：0.13-0.21%, S≤0.03%, P≤0.02%, rare earth metal：0.13-0.26%, surplus For Fe；The chemical composition mass percent of described rare earth metal is：Nd：9-15%, Ce：11-14%, Er：1-4%, Pr：6-9%, Pm：1-3%, Gd：3-7%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 35- 37 parts, ceramic 5-7 part, carborundum 6-8 part, polrvinyl chloride 2-3 part, xylene formaldehyde resin 6-8 part, zinc citrate 1-2 Part, Methyl Hydrogen Polysiloxane Fluid 3-5 part, vinyltrimethoxy silane 2-7 part, hydroxyl polydimethylsiloxane：6-9 part, poly- methyl Acrylic acid methyl ester. 3-8 part, 4- isocyanatomethyl：1-5 part, urethanes：2-4 part, APP：2-8 part, Ethoxylated bisphenol A dimethylacrylate：3-5 part.
The technical scheme that the present invention limits further is：Aforesaid shelf crosspiece high-strength steel sheet, described steel plate bend Take intensity >=450MPa, tensile strength >=610MPa, suitable weld heat input is 150-250kJ/cm, 150-250kJ/cm's Under the conditions of Large Heat Input Welding, the HAZ of the steel plate average impact work(at -40 DEG C is in more than 180J.
Aforesaid shelf crosspiece high-strength steel sheet, the chemical composition mass percent of described steel plate is：C：0.03%, Cr： 8.5%, Si：0.35%, Mn：0.52%, Ni：0.25%, Re：0.25%, Ge：0.17%, Zr：0.45%, W：0.30%, Y：0.11%, Ti：0.13%, Ca：0.75%, B：0.82%, Mg：0.11%, Mo：0.13%, S≤0.03%, P≤0.02%, rare earth metal：0.13%, Balance of Fe；The chemical composition mass percent of described rare earth metal is：Nd：9%, Ce：11%, Er：1%, Pr：6%, Pm：1%, Gd：3%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 35 Part, 5 parts of ceramic, 6 parts of carborundum, 2 parts of polrvinyl chloride, 6 parts of xylene formaldehyde resin, 1 part of zinc citrate, methyl hydrogen silicon 3 parts of oil, 2 parts of vinyltrimethoxy silane, hydroxyl polydimethylsiloxane：6 parts, 3 parts of polymethyl methacrylate, 4- methyl Cyclohexyl isocyanate：1 part, urethanes：2 parts, APP：2 parts, ethoxylated bisphenol A dimethylacrylate：3 Part.
Aforesaid shelf crosspiece high-strength steel sheet, the chemical composition mass percent of described steel plate is：C：0.04%, Cr： 8.6%, Si：0.37%, Mn：0.58%, Ni：0.28%, Re：0.26%, Ge：0.17%, Zr：0.55%, W：0.32%, Y：0.12%, Ti：0.14%, Ca：0.76%, B：0.86%, Mg：0.15%, Mo：0.17%, S≤0.03%, P≤0.02%, rare earth metal：0.18%, Balance of Fe；The chemical composition mass percent of described rare earth metal is：Nd：11%, Ce：12, Er：3%, Pr：8%, Pm：2%, Gd：5%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 36 Part, 6 parts of ceramic, 7 parts of carborundum, 2 parts of polrvinyl chloride, 7 parts of xylene formaldehyde resin, 1 part of zinc citrate, methyl hydrogen silicon 4 parts of oil, 5 parts of vinyltrimethoxy silane, 7 parts of hydroxyl polydimethylsiloxane, 5 parts of polymethyl methacrylate, 4- methyl 3 parts of cyclohexyl isocyanate, 3 parts of urethanes, 5 parts of APP, 4 parts of ethoxylated bisphenol A dimethylacrylate.
Aforesaid shelf crosspiece high-strength steel sheet, the chemical composition mass percent of described steel plate is：C：0.05%, Cr： 8.7%, Si：0.39%, Mn：0.63%, Ni：0.32%, Re：0.27%, Ge：0.18%, Zr：0.62%, W：0.33%, Y：0.13%, Ti：0.15%, Ca：0.77%, B：0.88%, Mg：0.18%, Mo：0.21%, S≤0.03%, P≤0.02%, rare earth metal：0.26%, Balance of Fe；The chemical composition mass percent of described rare earth metal is：Nd：15%, Ce：14%, Er：4%, Pr：9%, Pm：3%, Gd：7%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 37 Part, 7 parts of ceramic, 8 parts of carborundum, 3 parts of polrvinyl chloride, 8 parts of xylene formaldehyde resin, 2 parts of zinc citrate, methyl hydrogen silicon 5 parts of oil, 7 parts of vinyltrimethoxy silane, 9 parts of hydroxyl polydimethylsiloxane, 8 parts of polymethyl methacrylate, 4- methyl 5 parts of cyclohexyl isocyanate, 4 parts of urethanes, 8 parts of APP, 5 parts of ethoxylated bisphenol A dimethylacrylate.
A kind of heat treatment method of shelf crosspiece high-strength steel sheet, comprises the following steps：
Steel plate is heated to 1150-1170 DEG C by tempering furnace tempering, after coming out of the stove, 780-790 is cooled fast to by compressed air DEG C, through the first refrigerating work procedure, steel plate fast speed is cooled to 520-540 DEG C online, then is cooled to often by the second cooling technique Temperature；First refrigerating work procedure：Combined using water-cooled, air-cooled cooling with aerosol, first adopt water-cooled to incite somebody to action with the cooldown rate of 13-15 DEG C/s Steel plate water-cooled, to 940-960 DEG C, then adopts the air-cooled cooldown rate with 7-9 DEG C/s that slab is cooled to 650-670 DEG C, then adopts Aerosol cools down steel plate water-cooled with the cooldown rate of 2-4 DEG C/s to 520-540 DEG C；Described second refrigerating work procedure：Using air-cooled with Water-cooled combines, and first adopts the air-cooled cooldown rate with 3-5 DEG C/s by steel plate water-cooled to 310-340 DEG C, adopts water-cooled with 6-8 DEG C/s Cooldown rate steel plate is cooled to room temperature.
The heat treatment method of aforesaid shelf crosspiece high-strength steel sheet, comprises the following steps：
Steel plate is heated to 1150 DEG C by tempering furnace tempering, is cooled fast to 780 DEG C by compressed air after coming out of the stove, online warp Steel plate fast speed is cooled to 520 DEG C by the first refrigerating work procedure, then is cooled to room temperature by the second cooling technique；First bosher Sequence：Using water-cooled, air-cooled cooling combines with aerosol, first adopt water-cooled with the cooldown rate of 13 DEG C/s by steel plate water-cooled to 940 DEG C, Then adopt the air-cooled cooldown rate with 7 DEG C/s that slab is cooled to 650 DEG C, then adopt aerosol to cool down with the cooldown rate of 2 DEG C/s By steel plate water-cooled to 520 DEG C；Described second refrigerating work procedure：Be combined with water-cooled using air-cooled, first adopt the air-cooled cooling with 3 DEG C/s Steel plate water-cooled to 310 DEG C, is adopted water-cooled, with the cooldown rate of 6 DEG C/s, steel plate is cooled to room temperature by speed.
The heat treatment method of aforesaid shelf crosspiece high-strength steel sheet, comprises the following steps：
Steel plate is heated to 1160 DEG C by tempering furnace tempering, is cooled fast to 785 DEG C by compressed air after coming out of the stove, online warp Steel plate fast speed is cooled to 530 DEG C by the first refrigerating work procedure, then is cooled to room temperature by the second cooling technique；First bosher Sequence：Using water-cooled, air-cooled cooling combines with aerosol, first adopt water-cooled with the cooldown rate of 14 DEG C/s by steel plate water-cooled to 950 DEG C, Then adopt the air-cooled cooldown rate with 8 DEG C/s that slab is cooled to 660 DEG C, then adopt aerosol to cool down with the cooldown rate of 3 DEG C/s By steel plate water-cooled to 530 DEG C；Described second refrigerating work procedure：Be combined with water-cooled using air-cooled, first adopt the air-cooled cooling with 4 DEG C/s Steel plate water-cooled to 330 DEG C, is adopted water-cooled, with the cooldown rate of 7 DEG C/s, steel plate is cooled to room temperature by speed.
Further, the heat treatment method of aforesaid shelf crosspiece high-strength steel sheet, comprises the following steps：
Steel plate is heated to 1170 DEG C by tempering furnace tempering, is cooled fast to 790 DEG C by compressed air after coming out of the stove, online warp Steel plate fast speed is cooled to 540 DEG C by the first refrigerating work procedure, then is cooled to room temperature by the second cooling technique；First bosher Sequence：Using water-cooled, air-cooled cooling combines with aerosol, first adopt water-cooled with the cooldown rate of 15 DEG C/s by steel plate water-cooled to 960 DEG C, Then adopt the air-cooled cooldown rate with 9 DEG C/s that slab is cooled to 670 DEG C, then adopt aerosol to cool down with the cooldown rate of 4 DEG C/s By steel plate water-cooled to 540 DEG C；Described second refrigerating work procedure：Be combined with water-cooled using air-cooled, first adopt the air-cooled cooling with 5 DEG C/s Steel plate water-cooled to 340 DEG C, is adopted water-cooled, with the cooldown rate of 8 DEG C/s, steel plate is cooled to room temperature by speed.
The invention has the beneficial effects as follows：The effect that in steel plate composition of the present invention, the control of each element content is played is：This Bright interpolation rare-earth elements of lanthanum, cerium and praseodymium, and add martensitic structure by austenite can be obtained with reference to Technology for Heating Processing, this steel plate In first mutually be austenite, second mutually be martensite, at surface to 1/4 thickness the second phase volume percent be 4.5-4.8%, 1/4 thickness to center the second phase volume percent is 6.7-7.1%；Thus successfully producing the high-strength steel sheet with shelf crosspiece, There is good transverse yield strength and high-ductility, yield strength >=450MPa, tensile strength >=610MPa, suitable sealing wire energy Measure as 150-250kJ/cm, under the conditions of the Large Heat Input Welding of 150-250kJ/cm, HAZ the putting down at -40 DEG C of steel tube body All ballistic works are in more than 180J.
Specific embodiment
The present invention is described in further detail below：
Embodiment 1
A kind of shelf crosspiece high-strength steel sheet that the present embodiment provides, the chemical composition mass percent of described steel plate is：C： 0.03%, Cr：8.5%, Si：0.35%, Mn：0.52%, Ni：0.25%, Re：0.25%, Ge：0.17%, Zr：0.45%, W：0.30%, Y：0.11%, Ti：0.13%, Ca：0.75%, B：0.82%, Mg：0.11%, Mo：0.13%, S≤0.03%, P≤0.02%, rare earth gold Belong to：0.13%, balance of Fe；The chemical composition mass percent of described rare earth metal is：Nd：9%, Ce：11%, Er：1%, Pr： 6%, Pm：1%, Gd：3%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 35 Part, 5 parts of ceramic, 6 parts of carborundum, 2 parts of polrvinyl chloride, 6 parts of xylene formaldehyde resin, 1 part of zinc citrate, methyl hydrogen silicon 3 parts of oil, 2 parts of vinyltrimethoxy silane, hydroxyl polydimethylsiloxane：6 parts, 3 parts of polymethyl methacrylate, 4- methyl Cyclohexyl isocyanate：1 part, urethanes：2 parts, APP：2 parts, ethoxylated bisphenol A dimethylacrylate：3 Part.
The heat treatment method of the shelf crosspiece high-strength steel sheet of the present embodiment, comprises the following steps：
Steel plate is heated to 1150 DEG C by tempering furnace tempering, is cooled fast to 780 DEG C by compressed air after coming out of the stove, online warp Steel plate fast speed is cooled to 520 DEG C by the first refrigerating work procedure, then is cooled to room temperature by the second cooling technique；First bosher Sequence：Using water-cooled, air-cooled cooling combines with aerosol, first adopt water-cooled with the cooldown rate of 13 DEG C/s by steel plate water-cooled to 940 DEG C, Then adopt the air-cooled cooldown rate with 7 DEG C/s that slab is cooled to 650 DEG C, then adopt aerosol to cool down with the cooldown rate of 2 DEG C/s By steel plate water-cooled to 520 DEG C；Described second refrigerating work procedure：Be combined with water-cooled using air-cooled, first adopt the air-cooled cooling with 3 DEG C/s Steel plate water-cooled to 310 DEG C, is adopted water-cooled, with the cooldown rate of 6 DEG C/s, steel plate is cooled to room temperature by speed.
Embodiment 2
A kind of shelf crosspiece high-strength steel sheet that the present embodiment provides, the chemical composition mass percent of described steel plate is：C： 0.04%, Cr：8.6%, Si：0.37%, Mn：0.58%, Ni：0.28%, Re：0.26%, Ge：0.17%, Zr：0.55%, W：0.32%, Y：0.12%, Ti：0.14%, Ca：0.76%, B：0.86%, Mg：0.15%, Mo：0.17%, S≤0.03%, P≤0.02%, rare earth gold Belong to：0.18%, balance of Fe；The chemical composition mass percent of described rare earth metal is：Nd：11%, Ce：12, Er：3%, Pr： 8%, Pm：2%, Gd：5%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 36 Part, 6 parts of ceramic, 7 parts of carborundum, 2 parts of polrvinyl chloride, 7 parts of xylene formaldehyde resin, 1 part of zinc citrate, methyl hydrogen silicon 4 parts of oil, 5 parts of vinyltrimethoxy silane, 7 parts of hydroxyl polydimethylsiloxane, 5 parts of polymethyl methacrylate, 4- methyl 3 parts of cyclohexyl isocyanate, 3 parts of urethanes, 5 parts of APP, 4 parts of ethoxylated bisphenol A dimethylacrylate.
The heat treatment method of the shelf crosspiece high-strength steel sheet of the present embodiment, comprises the following steps：
Steel plate is heated to 1160 DEG C by tempering furnace tempering, is cooled fast to 785 DEG C by compressed air after coming out of the stove, online warp Steel plate fast speed is cooled to 530 DEG C by the first refrigerating work procedure, then is cooled to room temperature by the second cooling technique；First bosher Sequence：Using water-cooled, air-cooled cooling combines with aerosol, first adopt water-cooled with the cooldown rate of 14 DEG C/s by steel plate water-cooled to 950 DEG C, Then adopt the air-cooled cooldown rate with 8 DEG C/s that slab is cooled to 660 DEG C, then adopt aerosol to cool down with the cooldown rate of 3 DEG C/s By steel plate water-cooled to 530 DEG C；Described second refrigerating work procedure：Be combined with water-cooled using air-cooled, first adopt the air-cooled cooling with 4 DEG C/s Steel plate water-cooled to 330 DEG C, is adopted water-cooled, with the cooldown rate of 7 DEG C/s, steel plate is cooled to room temperature by speed.
Embodiment 3
A kind of shelf crosspiece high-strength steel sheet that the present embodiment provides, the chemical composition mass percent of described steel plate is：C： 0.05%, Cr：8.7%, Si：0.39%, Mn：0.63%, Ni：0.32%, Re：0.27%, Ge：0.18%, Zr：0.62%, W：0.33%, Y：0.13%, Ti：0.15%, Ca：0.77%, B：0.88%, Mg：0.18%, Mo：0.21%, S≤0.03%, P≤0.02%, rare earth gold Belong to：0.26%, balance of Fe；The chemical composition mass percent of described rare earth metal is：Nd：15%, Ce：14%, Er：4%, Pr： 9%, Pm：3%, Gd：7%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 37 Part, 7 parts of ceramic, 8 parts of carborundum, 3 parts of polrvinyl chloride, 8 parts of xylene formaldehyde resin, 2 parts of zinc citrate, methyl hydrogen silicon 5 parts of oil, 7 parts of vinyltrimethoxy silane, 9 parts of hydroxyl polydimethylsiloxane, 8 parts of polymethyl methacrylate, 4- methyl 5 parts of cyclohexyl isocyanate, 4 parts of urethanes, 8 parts of APP, 5 parts of ethoxylated bisphenol A dimethylacrylate.
The heat treatment method of the shelf crosspiece high-strength steel sheet of the present embodiment, comprises the following steps：
Steel plate is heated to 1170 DEG C by tempering furnace tempering, is cooled fast to 790 DEG C by compressed air after coming out of the stove, online warp Steel plate fast speed is cooled to 540 DEG C by the first refrigerating work procedure, then is cooled to room temperature by the second cooling technique；First bosher Sequence：Using water-cooled, air-cooled cooling combines with aerosol, first adopt water-cooled with the cooldown rate of 15 DEG C/s by steel plate water-cooled to 960 DEG C, Then adopt the air-cooled cooldown rate with 9 DEG C/s that slab is cooled to 670 DEG C, then adopt aerosol to cool down with the cooldown rate of 4 DEG C/s By steel plate water-cooled to 540 DEG C；Described second refrigerating work procedure：Be combined with water-cooled using air-cooled, first adopt the air-cooled cooling with 5 DEG C/s Steel plate water-cooled to 340 DEG C, is adopted water-cooled, with the cooldown rate of 8 DEG C/s, steel plate is cooled to room temperature by speed.
Above example technological thought only to illustrate the invention is it is impossible to limit protection scope of the present invention with this, every According to technological thought proposed by the present invention, any change done on the basis of technical scheme, each fall within the scope of the present invention Within.

Claims (9)

1. a kind of shelf crosspiece high-strength steel sheet it is characterised in that：The chemical composition mass percent of described steel plate is：C： 0.03-0.05%, Cr：8.5-8.7%, Si：0.35-0.39%, Mn：0.52-0.63%, Ni：0.25-0.32%, Re：0.25- 0.27%, Ge：0.17-0.18%, Zr：0.45-0.62%, W：0.30-0.33%, Y：0.11-0.13%, Ti：0.13-0.15%, Ca： 0.75-0.77%, B：0.82-0.88%, Mg：0.11-0.18%, Mo：0.13-0.21%, S≤0.03%, P≤0.02%, rare earth gold Belong to：0.13-0.26%, balance of Fe；The chemical composition mass percent of described rare earth metal is：Nd：9-15%, Ce：11-14%, Er：1-4%, Pr：6-9%, Pm：1-3%, Gd：3-7%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 35- 37 parts, ceramic 5-7 part, carborundum 6-8 part, polrvinyl chloride 2-3 part, xylene formaldehyde resin 6-8 part, zinc citrate 1-2 Part, Methyl Hydrogen Polysiloxane Fluid 3-5 part, vinyltrimethoxy silane 2-7 part, hydroxyl polydimethylsiloxane：6-9 part, poly- methyl Acrylic acid methyl ester. 3-8 part, 4- isocyanatomethyl：1-5 part, urethanes：2-4 part, APP：2-8 part, Ethoxylated bisphenol A dimethylacrylate：3-5 part.
2. shelf crosspiece high-strength steel sheet according to claim 1 it is characterised in that：The yield strength of described steel plate >= 450MPa, tensile strength >=610MPa, suitable weld heat input is 150-250kJ/cm, in the large-line energy of 150-250kJ/cm Under welding condition, the HAZ of the steel plate average impact work(at -40 DEG C is in more than 180J.
3. shelf crosspiece high-strength steel sheet according to claim 1 it is characterised in that：The chemical composition matter of described steel plate Measuring percentage ratio is：C：0.03%, Cr：8.5%, Si：0.35%, Mn：0.52%, Ni：0.25%, Re：0.25%, Ge：0.17%, Zr： 0.45%, W：0.30%, Y：0.11%, Ti：0.13%, Ca：0.75%, B：0.82%, Mg：0.11%, Mo：0.13%, S≤0.03%, P ≤ 0.02%, rare earth metal：0.13%, balance of Fe；The chemical composition mass percent of described rare earth metal is：Nd：9%, Ce： 11%, Er：1%, Pr：6%, Pm：1%, Gd：3%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 35 Part, 5 parts of ceramic, 6 parts of carborundum, 2 parts of polrvinyl chloride, 6 parts of xylene formaldehyde resin, 1 part of zinc citrate, methyl hydrogen silicon 3 parts of oil, 2 parts of vinyltrimethoxy silane, hydroxyl polydimethylsiloxane：6 parts, 3 parts of polymethyl methacrylate, 4- methyl Cyclohexyl isocyanate：1 part, urethanes：2 parts, APP：2 parts, ethoxylated bisphenol A dimethylacrylate：3 Part.
4. shelf crosspiece high-strength steel sheet according to claim 1 it is characterised in that：The chemical composition matter of described steel plate Measuring percentage ratio is：C：0.04%, Cr：8.6%, Si：0.37%, Mn：0.58%, Ni：0.28%, Re：0.26%, Ge：0.17%, Zr： 0.55%, W：0.32%, Y：0.12%, Ti：0.14%, Ca：0.76%, B：0.86%, Mg：0.15%, Mo：0.17%, S≤0.03%, P ≤ 0.02%, rare earth metal：0.18%, balance of Fe；The chemical composition mass percent of described rare earth metal is：Nd：11%, Ce： 12, Er：3%, Pr：8%, Pm：2%, Gd：5%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 36 Part, 6 parts of ceramic, 7 parts of carborundum, 2 parts of polrvinyl chloride, 7 parts of xylene formaldehyde resin, 1 part of zinc citrate, methyl hydrogen silicon 4 parts of oil, 5 parts of vinyltrimethoxy silane, 7 parts of hydroxyl polydimethylsiloxane, 5 parts of polymethyl methacrylate, 4- methyl 3 parts of cyclohexyl isocyanate, 3 parts of urethanes, 5 parts of APP, 4 parts of ethoxylated bisphenol A dimethylacrylate.
5. shelf crosspiece high-strength steel sheet according to claim 1 it is characterised in that：The chemical composition matter of described steel plate Measuring percentage ratio is：C：0.05%, Cr：8.7%, Si：0.39%, Mn：0.63%, Ni：0.32%, Re：0.27%, Ge：0.18%, Zr： 0.62%, W：0.33%, Y：0.13%, Ti：0.15%, Ca：0.77%, B：0.88%, Mg：0.18%, Mo：0.21%, S≤0.03%, P ≤ 0.02%, rare earth metal：0.26%, balance of Fe；The chemical composition mass percent of described rare earth metal is：Nd：15%, Ce： 14%, Er：4%, Pr：9%, Pm：3%, Gd：7%, balance of La；
Described surface of steel plate is provided with wear-resistant coating, and described wear-resistant coating is counted by weight including following components：Epoxy resin 37 Part, 7 parts of ceramic, 8 parts of carborundum, 3 parts of polrvinyl chloride, 8 parts of xylene formaldehyde resin, 2 parts of zinc citrate, methyl hydrogen silicon 5 parts of oil, 7 parts of vinyltrimethoxy silane, 9 parts of hydroxyl polydimethylsiloxane, 8 parts of polymethyl methacrylate, 4- methyl 5 parts of cyclohexyl isocyanate, 4 parts of urethanes, 8 parts of APP, 5 parts of ethoxylated bisphenol A dimethylacrylate.
6. the heat treatment method of shelf crosspiece high-strength steel sheet according to claim 1 is it is characterised in that include following Step：
Steel plate is heated to 1150-1170 DEG C by tempering furnace tempering, after coming out of the stove, 780-790 is cooled fast to by compressed air DEG C, through the first refrigerating work procedure, steel plate fast speed is cooled to 520-540 DEG C online, then is cooled to often by the second cooling technique Temperature；First refrigerating work procedure：Combined using water-cooled, air-cooled cooling with aerosol, first adopt water-cooled to incite somebody to action with the cooldown rate of 13-15 DEG C/s Steel plate water-cooled, to 940-960 DEG C, then adopts the air-cooled cooldown rate with 7-9 DEG C/s that slab is cooled to 650-670 DEG C, then adopts Aerosol cools down steel plate water-cooled with the cooldown rate of 2-4 DEG C/s to 520-540 DEG C；Described second refrigerating work procedure：Using air-cooled with Water-cooled combines, and first adopts the air-cooled cooldown rate with 3-5 DEG C/s by steel plate water-cooled to 310-340 DEG C, adopts water-cooled with 6-8 DEG C/s Cooldown rate steel plate is cooled to room temperature.
7. the heat treatment method of shelf crosspiece high-strength steel sheet according to claim 6 is it is characterised in that include following Step：
Steel plate is heated to 1150 DEG C by tempering furnace tempering, is cooled fast to 780 DEG C by compressed air after coming out of the stove, online warp Steel plate fast speed is cooled to 520 DEG C by the first refrigerating work procedure, then is cooled to room temperature by the second cooling technique；First bosher Sequence：Using water-cooled, air-cooled cooling combines with aerosol, first adopt water-cooled with the cooldown rate of 13 DEG C/s by steel plate water-cooled to 940 DEG C, Then adopt the air-cooled cooldown rate with 7 DEG C/s that slab is cooled to 650 DEG C, then adopt aerosol to cool down with the cooldown rate of 2 DEG C/s By steel plate water-cooled to 520 DEG C；Described second refrigerating work procedure：Be combined with water-cooled using air-cooled, first adopt the air-cooled cooling with 3 DEG C/s Steel plate water-cooled to 310 DEG C, is adopted water-cooled, with the cooldown rate of 6 DEG C/s, steel plate is cooled to room temperature by speed.
8. the heat treatment method of shelf crosspiece high-strength steel sheet according to claim 6 is it is characterised in that include following Step：
Steel plate is heated to 1160 DEG C by tempering furnace tempering, is cooled fast to 785 DEG C by compressed air after coming out of the stove, online warp Steel plate fast speed is cooled to 530 DEG C by the first refrigerating work procedure, then is cooled to room temperature by the second cooling technique；First bosher Sequence：Using water-cooled, air-cooled cooling combines with aerosol, first adopt water-cooled with the cooldown rate of 14 DEG C/s by steel plate water-cooled to 950 DEG C, Then adopt the air-cooled cooldown rate with 8 DEG C/s that slab is cooled to 660 DEG C, then adopt aerosol to cool down with the cooldown rate of 3 DEG C/s By steel plate water-cooled to 530 DEG C；Described second refrigerating work procedure：Be combined with water-cooled using air-cooled, first adopt the air-cooled cooling with 4 DEG C/s Steel plate water-cooled to 330 DEG C, is adopted water-cooled, with the cooldown rate of 7 DEG C/s, steel plate is cooled to room temperature by speed.
9. the heat treatment method of shelf crosspiece high-strength steel sheet according to claim 6 is it is characterised in that include following Step：
Steel plate is heated to 1170 DEG C by tempering furnace tempering, is cooled fast to 790 DEG C by compressed air after coming out of the stove, online warp Steel plate fast speed is cooled to 540 DEG C by the first refrigerating work procedure, then is cooled to room temperature by the second cooling technique；First bosher Sequence：Using water-cooled, air-cooled cooling combines with aerosol, first adopt water-cooled with the cooldown rate of 15 DEG C/s by steel plate water-cooled to 960 DEG C, Then adopt the air-cooled cooldown rate with 9 DEG C/s that slab is cooled to 670 DEG C, then adopt aerosol to cool down with the cooldown rate of 4 DEG C/s By steel plate water-cooled to 540 DEG C；Described second refrigerating work procedure：Be combined with water-cooled using air-cooled, first adopt the air-cooled cooling with 5 DEG C/s Steel plate water-cooled to 340 DEG C, is adopted water-cooled, with the cooldown rate of 8 DEG C/s, steel plate is cooled to room temperature by speed.
CN201611162742.XA 2016-12-15 2016-12-15 High-strength steel plate for shelving crosspieces and thermal treatment method thereof Pending CN106435372A (en)

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