CN115354223B - High-strength wear-resistant seamless steel tube and preparation method thereof - Google Patents
High-strength wear-resistant seamless steel tube and preparation method thereof Download PDFInfo
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- CN115354223B CN115354223B CN202210953554.8A CN202210953554A CN115354223B CN 115354223 B CN115354223 B CN 115354223B CN 202210953554 A CN202210953554 A CN 202210953554A CN 115354223 B CN115354223 B CN 115354223B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 168
- 239000010959 steel Substances 0.000 title claims abstract description 168
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 72
- 239000002245 particle Substances 0.000 claims abstract description 55
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 22
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 22
- 238000010791 quenching Methods 0.000 claims abstract description 10
- 230000000171 quenching effect Effects 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 7
- 239000002105 nanoparticle Substances 0.000 claims description 52
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 24
- 239000006185 dispersion Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 8
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 claims description 7
- 229910033181 TiB2 Inorganic materials 0.000 claims description 7
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 7
- 229910003470 tongbaite Inorganic materials 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 229910021538 borax Inorganic materials 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000013067 intermediate product Substances 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 239000004328 sodium tetraborate Substances 0.000 claims description 6
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 6
- 239000002041 carbon nanotube Substances 0.000 claims description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 5
- 239000011863 silicon-based powder Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 238000000498 ball milling Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000005238 degreasing Methods 0.000 claims description 3
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 6
- BXONZOXNGWRXND-UHFFFAOYSA-N [Ce].[C].[F] Chemical compound [Ce].[C].[F] BXONZOXNGWRXND-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 27
- 239000013078 crystal Substances 0.000 description 11
- 235000013339 cereals Nutrition 0.000 description 10
- 238000005299 abrasion Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 229910001566 austenite Inorganic materials 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000005054 agglomeration Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 230000006911 nucleation Effects 0.000 description 4
- 238000010899 nucleation Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000005501 phase interface Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical group [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000004372 laser cladding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/085—Cooling or quenching
-
- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- 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
- C22C38/06—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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The application relates to the technical field of steel pipes, and particularly discloses a high-strength wear-resistant seamless steel pipe and a preparation method thereof. The utility model provides a wear-resisting seamless steel pipe of high strength, includes the steel pipe body, the steel pipe body includes steel material and doping material, the doping material includes the rare earth particle, the rare earth particle is selected from any one in rare earth ferrosilicon alloy, the fluorine carbon cerium. The preparation method comprises the following steps: s1, preparing a steel pipe body; and S2, surface quenching. The seamless steel pipe can be used in the fields of rotary drilling rigs, underground pipelines and the like, and has the advantages of high strength, high wear resistance and high impact resistance.
Description
Technical Field
The application relates to the field of steel pipe materials, in particular to a high-strength wear-resistant seamless steel pipe and a preparation method thereof.
Background
The seamless steel pipe is divided into a hot-rolled seamless steel pipe and a cold-rolled seamless steel pipe, and the cold-rolled steel pipe is divided into a round pipe and a special pipe. As the technology of earth boring exploration becomes more mature, seamless drill pipes are used increasingly as an important component of geological exploration equipment.
During actual operation, the drill rod of the rotary drilling rig transmits pressure and torque through the inner key and the outer key, wherein the outer key has the functions of transmitting rotary drilling torque and pressure, the inner key has the functions of transmitting rotary drilling torque and pressure and has the function of radially positioning the adjacent inner rod steel pipe, and therefore the steel pipe has high strength and wear resistance and is an important influence factor for ensuring the smooth operation of the drill rod of the rotary drilling rig.
In view of the above-mentioned related technologies, the inventor believes that the strength of the steel pipe on the market is not good at present, and when drilling the ground, the steel pipe is easily scratched by the underground rocks, gravels and the like, and the corrosion elements such as underground water, acid, alkali and the like are easy to corrode the steel pipe, so that the steel pipe is damaged, that is, the seamless steel pipe has the defects of poor strength and wear resistance.
Disclosure of Invention
In order to improve the defects of poor strength and wear resistance of the seamless steel pipe, the application provides the high-strength wear-resistant seamless steel pipe and the preparation method thereof.
First aspect, the application provides a wear-resisting seamless steel pipe of high strength, adopts following technical scheme:
the high-strength wear-resistant seamless steel pipe comprises a steel pipe body, wherein the steel pipe body comprises a steel material and a doping material, and the steel material comprises the following substances in parts by weight: 0.16-0.18% of carbon, 0.31-0.33% of silicon, 1.21-1.6% of manganese, 0.0014-0.025% of phosphorus, 0.006-0.01% of sulfur, 0.029-0.04% of aluminum, 0.07-0.3% of chromium, 0.02-0.2% of nickel, 0.03-0.2% of copper, 0.004-0.08% of molybdenum, 97.035-98.1596% of refined iron, wherein the doping material comprises rare earth particles selected from any one of rare earth ferrosilicon alloy and fluorocarbon cerium.
By adopting the technical scheme, each component in the steel material is optimized in the technical scheme, and the nickel is added in the steel material, so that the strength and the wear-resisting strength of the seamless steel pipe are effectively improved.
Secondly, the technical scheme of the application adopts the technical scheme that the rare earth ferrosilicon alloy is added into the seamless steel pipe, and the rare earth ferrosilicon alloy can be combined with O, S in the molten steel and is enriched to a crystal boundary, so that the atomic diffusion and the growth of austenite grains are prevented, the generation of continuous net-shaped carbide is reduced, and the combination effect among all components of the steel material is improved. Besides, the rare earth ferrosilicon alloy has better surface activation effect, reduces the surface tension of a phase interface, reduces the nucleation power of crystal nuclei, and can accelerate the formation speed of the crystal nuclei and improve the adsorbability of the crystal nuclei. Meanwhile, the formed crystal nucleus is easily enriched to the surface of the carbide, so that the carbide cannot form a net-shaped carbide, and the carbide is changed into a chain, a broken net or even an isolated state, so that the crystal nucleus is not easy to precipitate, and the strength of the seamless steel pipe is effectively improved.
Finally, the fluorocarbon cerium is added into the steel pipe body, so that completely overlapped inclusions can be formed in the seamless steel pipe, the grain size in molten steel is refined, the inclusions can inhibit austenite grains from growing, and the refined precipitates have a strong pinning effect on austenite grain boundaries, so that the equivalent grain size in the seamless steel pipe is reduced, the effective titanium content in the seamless steel pipe is increased, namely phase ions are increased, and the hardness and the toughness of the seamless steel pipe are improved.
Preferably, the doping material further comprises wear-resistant particles, the wear-resistant particles comprise nanoparticles, aluminum phosphate and aluminum sol, and the preparation of the wear-resistant particles comprises the following steps: respectively taking the nano particles, the aluminum phosphate and the aluminum sol, taking half of the nano particles and the aluminum phosphate by mass, stirring and mixing, carrying out ball milling dispersion to obtain a dispersion, adding the aluminum sol into the dispersion, continuing stirring, pressing, sintering and crushing to obtain an intermediate product, and mixing the intermediate product with the rest half of the nano particles by mass to obtain the wear-resistant particles.
According to the technical scheme, the nano particles, the aluminum phosphate and the aluminum sol are matched to serve as the wear-resistant particles, firstly, the aluminum sol can wrap and bond other components in the wear-resistant particles, a framework structure can be formed after sintering, and after the sintering, the framework structure is broken to form an isolated, broken-net structure or a chain-shaped structure. After the wear-resistant particles are added into the molten steel, on one hand, the surface roughness of the wear-resistant particles is increased, and the combination effect between the wear-resistant particles and other components in the molten steel is improved; on the other hand, due to the irregular structure of the surface of the wear-resistant particles, the possibility of agglomeration of the wear-resistant particles is reduced, and the seamless steel pipe obtains uniform and stable wear-resistant effect.
And secondly, after sintering, the aluminum phosphate can be converted into activated alumina, the content of active particles in the molten steel is increased, the grain size of austenite can be further refined, and the generation of carbide network in the molten steel is reduced. In addition, the nano particles can be matched with rare earth particles to form small-size inclusions, the particle size of the steel material is refined, partial reticular carbides are eliminated, spherical composite inclusions are induced to be generated and separated out, the nail pricking effect is generated, and the toughness and the strength of the seamless steel pipe are improved.
Preferably, the doping material further comprises an aluminum alloy, and the aluminum alloy is subjected to ultrasonic treatment.
By adopting the technical scheme, the aluminum alloy is subjected to ultrasonic treatment, in the ultrasonic process, positive pressure and negative pressure are easy to change alternately in the molten aluminum alloy, bubbles can be introduced into the melt, namely, new bubbles are continuously generated in the melt and are broken, and the rapid heat conduction is realized. And the aluminum alloy is added into the doping material, and has a proper amount of bubbles, so that after the aluminum alloy is mixed and melted with the wear-resistant particles, the bubbles can be broken, the melt temperature is instantly increased, the viscosity of the doping material is reduced, and the wettability between the steel material and the doping material is improved.
Preferably, the nanoparticles are selected from one or more of titanium carbide, silica, carbon nanotubes, titanium diboride.
Through adopting above-mentioned technical scheme, at first, titanium carbide can be in the grain boundary of steel material evenly distributed, hinders the dislocation motion, promotes material toughness, refines the grain size, stably plays the effect of pricking the nail. And after being combined with other components in the steel material, the titanium carbide can be converted into titanium nitride, so that the dispersion uniformity of the nano particles in the steel material is further improved, the titanium carbide can be matched with rare earth particles to reduce the mismatching degree, induce nucleation and grain refinement, and improve the strength of the seamless steel pipe.
Secondly, the silicon dioxide or the carbon nano tube is adopted, so that fine particles can be introduced into the steel material, and on one hand, the fine particles can be refined with the induced grains; on the other hand, the steel material can be combined with a broken net structure or a chain structure in the steel material, so that the combination stability of all components in the steel material is further enhanced, namely, the contents of pores and cracks in the seamless steel pipe are reduced, and the strength and the wear-resisting effect of the seamless steel pipe are improved.
And thirdly, titanium diboride is used as the nano particles, the titanium diboride particles are in geometrical shapes such as columns, sheets and the like, and the irregular shapes ensure that the nano particles are not easy to agglomerate, so that the dispersion uniformity of the nano particles in the steel material is improved.
Finally, titanium carbide, silicon dioxide, carbon nano tubes and titanium diboride are matched to serve as nano particles, and due to the fact that irregular shapes are added in the nano particles, agglomeration of the nano particles can be broken through, and the dispersion uniformity of the nano particles in the steel material is improved. By the mutual matching of the titanium carbide and the titanium diboride, the grains in the steel structure can be further refined, the martensite transformation in the steel material is promoted, the number of sorbite is reduced, and the strength and the wear resistance of the seamless steel pipe are improved.
Preferably, the nanoparticles are nanoparticles subjected to dispersion treatment, and the dispersion treatment comprises the following steps: soaking the nano particles in mixed acid, soaking, filtering, retaining solid, washing and drying to obtain acid-treated nano particles; stirring and mixing the acid-treated nanoparticles and a dispersing agent, filtering, retaining solids, and drying to obtain dispersed nanoparticles; the dispersing agent comprises any one of pentaerythritol stearate and fatty alcohol-polyoxyethylene ether; the mixed acid is nitric acid and sulfuric acid with equal mass ratio.
By adopting the technical scheme, the mixed acid is adopted to treat the nano particles, the ash on the surfaces of the nano particles can be removed, the surfaces of the nano particles are passivated, the possibility of agglomeration among the nano particles is reduced, and the dispersing effect of the nano particles is improved. Then, pentaerythritol stearate or fatty alcohol-polyoxyethylene ether is used for wrapping the nano particles, so that the surfaces of the nano particles are wrapped with the lubricating layer, the dispersing effect of the nano particles is further improved, and the seamless steel pipe can obtain a relatively uniform wear-resistant effect.
Preferably, the steel pipe body is coated with a wear-resistant layer, the wear-resistant layer is composed of wear-resistant materials, and the wear-resistant materials comprise chromium carbide and nickel carbide.
By adopting the technical scheme, the technical scheme of the application adopts the coordination of chromium carbide and nickel carbide as the wear-resistant material, so that the wear-resistant material obtains excellent heat resistance, corrosion resistance, high hardness and strong oxidation resistance, and the wear-resistant effect of the seamless steel pipe can be further improved after the wear-resistant layer is coated outside the steel pipe body. In addition, in the deposition process of the chromium carbide and the nickel carbide, the core part of the chromium carbide is wrapped by the nickel carbide, the outer surface of the powder particles is uneven, namely, the specific surface area of the wear-resistant material is increased, the absorption of the wear-resistant material to laser and the heat transfer effect are improved, and the deposition uniformity of the wear-resistant material on the steel pipe body and the combination firmness between the wear-resistant layer and the steel pipe body are improved.
Preferably, the wear-resistant material further comprises borax, iron powder, titanium powder and silicon powder, wherein the mass ratio of the iron powder to the titanium powder to the silicon powder to the borax is 40-50.
Through adopting above-mentioned technical scheme, this application technical scheme preferably adopts and adds borax, iron powder, titanium powder, silica flour cooperation in wear-resisting material and uses, can reduce the gas pocket in the wearing layer through slagging scorification and impurity removal effect to can increase other alloy components in wear-resisting material, reduce the chromium carbide and deposit the possibility that decomposes the production gas in, further reduce the possibility that the wearing layer produced the gas pocket.
Preferably, the preparation method of the wear-resistant layer comprises the following steps: welding the wear-resistant material to the steel pipe body by adopting a laser welding process, and cooling to obtain an intermediate; heating the intermediate to 280-320 ℃, heating to 500-600 ℃ again, preserving heat, cooling, taking out, and cooling at room temperature.
By adopting the technical scheme, the deposited steel pipe is annealed, after laser deposition, heat can be rapidly diffused and cooled to solidify, the solidification effect of rapid cooling can enable higher stress to appear in the deposited layer, through annealing, the stress in the deposited layer is reduced, the possibility of air holes, cracks and deformation of the deposited layer is reduced, and the wear resistance of the seamless steel pipe is improved.
In a second aspect, the application provides a method for preparing a high-strength wear-resistant seamless steel tube, which adopts the following technical scheme:
a preparation method of a high-strength wear-resistant seamless steel tube comprises the following steps: s1, preparing a steel pipe body: placing the doped material into a container, adding a molten steel material, stirring and mixing, and preparing a steel pipe body in a hot rolling mode; s2, surface quenching: taking a steel pipe body, quenching under the condition that the laser power is 3.2-4.0kW to obtain a quenched steel pipe, and degreasing, derusting, washing and drying the steel pipe to obtain the seamless steel pipe.
By adopting the technical scheme, the proper laser quenching power can be achieved at the proper temperature on the steel pipe body, so that the tempering transformation degree of the martensite on the steel pipe body is high, the content of undissolved ferrite on the steel pipe body is reduced, and the wear-resisting effect of the seamless steel pipe is improved.
In summary, the present application has the following beneficial effects:
1. because the components in the steel material are optimized, the hardness of the seamless steel pipe can be increased by adding nickel. The rare earth particles are added, so that the rare earth particles can be combined with O, S in molten steel and are enriched to a crystal boundary, the generation of continuous network-shaped carbide is reduced by preventing atom diffusion and austenite crystal grain growth, and the combination effect among steel components is improved, namely the strength of a seamless steel pipe is improved. Meanwhile, by the surface activation effect of the rare earth particles, the surface tension of a phase interface is reduced, the nucleation power of crystal nuclei is reduced, the nucleation speed is increased, the crystal nuclei are enriched to the surface of carbide, the precipitation of crystal boundaries is reduced, and the strength of the seamless steel pipe is further improved. In addition, the method can achieve the effect of binding nails, enhance the effective titanium content in the seamless steel pipe and improve the hardness and the toughness of the seamless steel pipe.
2. The wear-resistant steel pipe is characterized in that the nano particles, the aluminum phosphate and the aluminum sol are preferably adopted to be matched as the wear-resistant particles, the aluminum sol can bond other components in the wear-resistant particles, a network skeleton structure is formed after sintering, and after grinding, the surfaces of the wear-resistant particles can be wrapped or connected with a divergent structure, so that the combination effect between the wear-resistant material and the steel material is effectively improved, the possibility of agglomeration among the wear-resistant particles is reduced, and even if the seamless steel pipe obtains excellent and uniform wear-resistant effect.
3. According to the method, the laser power of the quenching treatment is optimized, so that the steel pipe body can obtain a better martensite tempering degree, the surface of the steel pipe body is burnt, the bonding firmness between the steel pipe body and the wear-resistant layer can be improved, in addition, the content of undissolved ferrite in the steel pipe body is reduced, and the hardness and the wear-resistant effect of the seamless steel pipe are effectively improved.
Detailed Description
The present application will be described in further detail with reference to examples.
Preparation example
Examples of preparation of nanoparticles
Preparation examples 1 to 5
Respectively taking titanium carbide, silicon dioxide, carbon nano tubes and titanium diboride, wherein the specific mass is shown in table 1, and stirring and mixing to obtain nano particles 1-5.
TABLE 1 preparative examples 1-5 nanoparticle compositions
Preparation example 6
5kg of nitric acid with a mass concentration of 5% and 5kg of sulfuric acid with a mass concentration of 5% were stirred and mixed to obtain a mixed acid. Soaking 1kg of the nanoparticles 5 in 10kg of mixed acid for 30min, filtering, retaining a filter cake, washing with water for 3 times until the washing liquid is neutral, and drying to obtain the acid-treated nanoparticles. And (2) soaking the acid-treated nanoparticles in pentaerythritol stearate, stirring and mixing, filtering, retaining a filter cake, and drying to obtain the dispersion-treated nanoparticles 1.
Preparation example 7
The difference from preparation 6 is that: fatty alcohol-polyoxyethylene ether is used as a dispersing agent to prepare the nano particles 2 subjected to dispersion treatment.
Examples of production of abrasion resistant particles
Preparation example 8
Respectively taking 3kg of aluminum phosphate, 1kg of alumina sol and 4kg of nano particles 1, stirring and mixing half of the nano particles and the aluminum phosphate, carrying out ball milling dispersion to obtain a dispersion, adding the alumina sol into the dispersion, continuing stirring, pressing, sintering and crushing to obtain an intermediate product, and stirring and mixing the intermediate product with the rest half of the nano particles again to obtain the wear-resistant particles 1. Mixing the pseudo-boehmite with water to prepare the alumina sol with the mass fraction of 10%.
Preparation example 9
The difference from preparation example 8 is that: 1kg of aluminum alloy was added to the dispersion to prepare wear-resistant particles 2. Wherein the aluminum alloy is silicon aluminum alloy. The preparation method of the aluminum alloy comprises the following steps: melting the aluminum alloy at 700 ℃ in the argon atmosphere, carrying out ultrasonic treatment, cooling and grinding to obtain the aluminum alloy subjected to ultrasonic treatment.
Preparation examples 10 to 15
The difference from preparation 9 is that: 2-5 parts of nano particles and 1-2 parts of dispersed wear-resistant particles are adopted to prepare 3-8 parts of wear-resistant particles.
Examples of production of abrasion resistant Material
Preparation examples 16 to 19
Respectively taking chromium carbide, nickel carbide, borax, iron powder, silicon powder and titanium powder, wherein the specific mass is shown in Table 2, and stirring and mixing to obtain 1-4 wear-resistant materials.
TABLE 2 PREPARATION EXAMPLES 16 to 19 COMPOSITION OF WEAR-RESISTANT MATERIAL
Examples
Examples 1 to 3
On one hand, the application provides a high-strength wear-resistant seamless steel pipe, which comprises a steel pipe body, wherein the steel pipe body comprises 99kg of steel material and 1kg of doping material, and the steel material comprises carbon, silicon, manganese, phosphorus, sulfur, aluminum, chromium, nickel, copper, molybdenum and refined iron according to mass percentage, and the specific mass is shown in table 3. The dopant includes rare earth particles, which in this embodiment are rare earth ferrosilicon.
On the other hand, the application provides a preparation method of a high-strength wear-resistant seamless steel pipe, which comprises the following steps: placing the doped material into a container, adding a molten steel material, stirring and mixing, and preparing a steel pipe body in a hot rolling mode; taking a steel pipe body, quenching the steel pipe body under the condition that the laser power is 3.2kW to obtain a quenched steel pipe, and degreasing, derusting, washing and drying the steel pipe to obtain the seamless steel pipe.
Table 3 examples 1-3 steel material compositions
Example 4
The difference from example 1 is that: the seamless steel tube 4 is prepared by using fluorine carbon cerium as rare earth particles. The fluorine carbon cerium is bastnaesite powder.
Examples 5 to 6
The difference from example 1 is that: and carrying out laser quenching treatment under the conditions that the laser power is 3.5kW and 4.0kW, and preparing 5-6 seamless steel pipes.
Examples 7 to 14
The difference from example 1 is that: the doping material comprises 0.6kg of rare earth particles and 1-8 kg of wear-resistant particles of 0.4kg, and is stirred and mixed to prepare 7-14 seamless steel pipes.
Examples 15 to 18
The difference from example 1 is that: and (2) cladding the wear-resistant materials 1-4 on the seamless steel tube by adopting a laser cladding process to obtain an intermediate, heating the intermediate to 280 ℃, heating to 500 ℃ at a heating rate of 120 ℃/h, keeping the temperature for 3h, stopping heating, taking out the intermediate when the temperature is reduced to 300 ℃, and cooling in the air at room temperature to obtain the seamless steel tube 15-18.
Example 19
The difference from example 15 is that: and heating the intermediate to 300 ℃, heating to 550 ℃ at the heating rate of 120 ℃/h, keeping the temperature for 3h, stopping heating, cooling to 300 ℃, taking out the intermediate, and cooling in the air at room temperature to obtain the seamless steel tube 19.
Example 20
The difference from example 15 is that: and heating the intermediate to 320 ℃, heating to 600 ℃ at the heating rate of 120 ℃/h, keeping the temperature for 3h, stopping heating, cooling to 300 ℃, taking out the intermediate, and cooling in the air at room temperature to obtain the seamless steel tube 20.
Comparative example
Comparative example 1
The present comparative example is different from example 1 in that no dopant was added in the present comparative example, and a seamless steel pipe 21 was produced.
Comparative example 2
The comparative example is different from example 3 in that rare earth lanthanum is added to prepare a seamless steel pipe 22.
Performance test
(1) And (3) testing the wear resistance: a pin-disc abrasion test is carried out at room temperature by adopting an MMW-1G type universal friction abrasion tester, the abrasion material is GCr15 steel with the hardness of 58HRC, the test bar size is ϕ mm multiplied by 10mm, the load is 100N, the rotating speed is 120 r.min < -1 >, the test time is 30min, the mass of a sample before and after abrasion is weighed by an FA2004A type electronic balance with the precision of 0.1mg, and the abrasion resistance is evaluated by the abrasion mass change rate.
(2) And (3) hardness detection: hardness was measured using a VH-5 Vickers hardness tester equipped with SVDM3 hardness software system, with a load of 1kg, a loading time of 15s, and 5 points per sample were measured and averaged.
(3) And (3) impact resistance detection: the Charpy impact test sample is used for representing the impact toughness of the experimental steel, the length of the test sample is sampled along the rolling direction of the experimental steel, the processing size of the test sample is 10mm multiplied by 10mmx55mm, and a notch of the impact test sample is V-shaped. The test temperature is normal temperature, one 20.C and one 40.C. And taking 3 impact samples of the same heat treatment sample to finish impact performance detection, and averaging results.
TABLE 4 Performance test of examples 1-20 and comparative examples 1-2
The comparison of the performance tests in combination with table 4 can find that:
(1) A comparison of examples 1-3, 4, 5-6 and comparative examples 1-2 shows that: the wear resistance, hardness and impact resistance of the seamless steel pipes manufactured in examples 1 to 4 are improved, which shows that the proportion of alloy doping components in the steel pipe body is optimized, and the strength of the seamless steel pipe is improved by optimizing the nickel component. Through the addition of rare earth particles, the compactness in the seamless steel tube is synergistically improved through the refinement of austenite, the removal of net-shaped carbide and the nail pricking effect, so that the seamless steel tube obtains excellent hardness and wear-resisting effect. As can be seen from table 4, the seamless steel pipes obtained in examples 1 and 6 are excellent in wear resistance, strength, and impact resistance, and the respective component distributions in the steel pipe body in example 1 are appropriate, and the laser quenching power in example 6 is appropriate.
(2) A comparison of example 7, example 8, examples 9-12 and example 1 shows that: the wear resistance, hardness and impact resistance of the seamless steel pipes manufactured in examples 7 to 12 are improved, which shows that the seamless steel pipes are added with wear-resistant particles, and through the addition of the alumina sol, a divergent structure is formed on the surface of the wear-resistant particles, so that the bonding effect between the wear-resistant particles and the steel material is improved, and the wear-resistant particles can be matched with rare earth particles, the austenite grain size is refined, small-sized inclusions are formed, the nail pricking effect is generated, and the toughness and strength of the seamless steel pipes are improved. As can be seen from table 4, the seamless steel pipe obtained in example 12 is excellent in wear resistance, strength, and impact resistance, and the respective component proportions of the wear-resistant particles in example 12 are shown to be appropriate.
(3) A comparison of examples 13 to 14 with example 1 shows that: the wear resistance, hardness and impact resistance of the seamless steel pipes manufactured in examples 13 to 14 are improved, which shows that the present application performs mixed acid etching on the wear-resistant particles, and performs dispersant coating, so as to passivate the wear-resistant particles, reduce the surface activity of the wear-resistant particles, and add a lubricating layer on the surface of the wear-resistant particles, thereby effectively improving the dispersion uniformity of the wear-resistant particles in the steel material, and obtaining uniform and excellent wear resistance of the seamless steel pipes.
(4) A comparison of examples 15 to 18, examples 19 to 20 and example 1 shows that: the wear resistance, hardness and impact resistance of the seamless steel pipes obtained in examples 15 to 20 were improved, which indicates that the wear-resistant layer was coated on the steel pipe body by welding, and the wear-resistant layer with excellent surface loading performance was provided by reducing the generation of pores and cracks in the wear-resistant layer by the blending of the components in the wear-resistant material. As can be seen from Table 4, the seamless steel pipes obtained in examples 17 and 19 are excellent in wear resistance, strength and impact resistance, and it is demonstrated that the wear-resistant material in example 17 is suitable in the ratio of the components and the annealing temperature in example 19 is suitable.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (5)
1. The high-strength wear-resistant seamless steel pipe is characterized by comprising a steel pipe body, wherein the steel pipe body comprises a steel material and a doping material, and the steel material comprises the following substances in percentage by mass: 0.16-0.18% of carbon, 0.31-0.33% of silicon, 1.21-1.6% of manganese, 0.0014-0.025% of phosphorus, 0.006-0.01% of sulfur, 0.029-0.04% of aluminum, 0.07-0.3% of chromium, 0.02-0.2% of nickel, 0.03-0.2% of copper, 0.004-0.08% of molybdenum, 97.035-98.1596% of refined iron, wherein the doping material comprises rare earth particles selected from any one of rare earth ferrosilicon alloy and fluorocarbon cerium;
the doping material also comprises wear-resistant particles, the wear-resistant particles comprise nanoparticles, aluminum phosphate and alumina sol, and the preparation of the wear-resistant particles comprises the following steps: respectively taking the nano particles, the aluminum phosphate and the alumina sol, taking half of the nano particles and the aluminum phosphate by mass, stirring and mixing, performing ball milling dispersion to obtain a dispersion, adding the alumina sol into the dispersion, continuously stirring, pressing, sintering and crushing to obtain an intermediate product, and mixing the intermediate product with the rest half of the nano particles by mass to obtain wear-resistant particles;
the wear resistant particles further comprise an aluminum alloy, which is an aluminum alloy that has been subjected to ultrasonic treatment;
the nano particles are selected from one or more of titanium carbide, silicon dioxide, carbon nano tubes and titanium diboride;
the nano particles are subjected to dispersion treatment, and the dispersion treatment comprises the following steps: soaking the nano particles in mixed acid, soaking, filtering, retaining solid, washing and drying to obtain acid-treated nano particles; stirring and mixing the acid-treated nanoparticles and a dispersing agent, filtering, retaining solids, and drying to obtain dispersed nanoparticles; the dispersing agent comprises any one of pentaerythritol stearate and fatty alcohol-polyoxyethylene ether; the mixed acid is nitric acid and sulfuric acid with equal mass ratio.
2. The high-strength wear-resistant seamless steel pipe as claimed in claim 1, wherein: the steel pipe comprises a steel pipe body and is characterized in that a wear-resistant layer is coated outside the steel pipe body, the wear-resistant layer is made of wear-resistant materials, and the wear-resistant materials comprise chromium carbide and nickel carbide.
3. The high-strength wear-resistant seamless steel tube as claimed in claim 2, wherein: the wear-resistant material also comprises borax, iron powder, titanium powder and silicon powder, wherein the mass ratio of the iron powder to the titanium powder to the silicon powder to the borax is (40-50).
4. The high-strength wear-resistant seamless steel pipe as claimed in claim 2, wherein: the preparation method of the wear-resistant layer comprises the following steps: welding the wear-resistant material to the steel pipe body by adopting a laser welding process, and cooling to obtain an intermediate; heating the intermediate to 280-320 ℃, heating to 500-600 ℃ again, preserving heat, cooling, taking out, and cooling at room temperature.
5. The method for preparing a high-strength wear-resistant seamless steel tube according to any one of claims 1 to 4, comprising the steps of:
s1, preparing a steel pipe body: placing the doped material into a container, adding a molten steel material, stirring and mixing, and preparing a steel pipe body in a hot rolling mode;
s2, surface quenching: taking a steel pipe body, quenching under the condition that the laser power is 3.2-4.0kW to obtain a quenched steel pipe, and degreasing, derusting, washing and drying the steel pipe to obtain the seamless steel pipe.
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