CN108950376A - A kind of low chromium wear-resisting alloy steel and preparation method thereof - Google Patents
A kind of low chromium wear-resisting alloy steel and preparation method thereof Download PDFInfo
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- CN108950376A CN108950376A CN201710369288.3A CN201710369288A CN108950376A CN 108950376 A CN108950376 A CN 108950376A CN 201710369288 A CN201710369288 A CN 201710369288A CN 108950376 A CN108950376 A CN 108950376A
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- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 80
- 239000011651 chromium Substances 0.000 title claims abstract description 69
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910052804 chromium Inorganic materials 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 78
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 48
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 45
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000004411 aluminium Substances 0.000 claims abstract description 44
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052796 boron Inorganic materials 0.000 claims abstract description 42
- 239000010703 silicon Substances 0.000 claims abstract description 41
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000011733 molybdenum Substances 0.000 claims abstract description 40
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 39
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 38
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 37
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052718 tin Inorganic materials 0.000 claims abstract description 35
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 32
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000004615 ingredient Substances 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 27
- 229910052742 iron Inorganic materials 0.000 claims abstract description 23
- 238000005266 casting Methods 0.000 claims abstract description 21
- 238000000465 moulding Methods 0.000 claims abstract description 21
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 17
- 239000000956 alloy Substances 0.000 claims abstract description 17
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 12
- 239000011572 manganese Substances 0.000 claims abstract description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 10
- 239000011574 phosphorus Substances 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000005864 Sulphur Substances 0.000 claims abstract description 9
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 40
- 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 29
- 238000010791 quenching Methods 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 16
- 229910001122 Mischmetal Inorganic materials 0.000 claims description 12
- 230000000171 quenching effect Effects 0.000 claims description 12
- 238000005496 tempering Methods 0.000 claims description 10
- -1 aluminium manganese iron Chemical compound 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 7
- 238000010835 comparative analysis Methods 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000005997 Calcium carbide Substances 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- 238000003892 spreading Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910000521 B alloy Inorganic materials 0.000 claims description 2
- 229910000599 Cr alloy Inorganic materials 0.000 claims description 2
- 229910001182 Mo alloy Inorganic materials 0.000 claims description 2
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 2
- 229910000676 Si alloy Inorganic materials 0.000 claims description 2
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 5
- 239000011135 tin Substances 0.000 description 27
- 229910001566 austenite Inorganic materials 0.000 description 8
- 229910001563 bainite Inorganic materials 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 229910052720 vanadium Inorganic materials 0.000 description 5
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 229910052758 niobium Inorganic materials 0.000 description 4
- 239000010955 niobium Substances 0.000 description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 229910052726 zirconium Inorganic materials 0.000 description 4
- 229910001567 cementite Inorganic materials 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 3
- 229910001562 pearlite Inorganic materials 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910002467 CrFe Inorganic materials 0.000 description 1
- 229910015136 FeMn Inorganic materials 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 108010038629 Molybdoferredoxin Proteins 0.000 description 1
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 description 1
- NZYYYKTZOWEGLS-UHFFFAOYSA-N [Sn].[Ce] Chemical compound [Sn].[Ce] NZYYYKTZOWEGLS-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 239000000243 solution Substances 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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- 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
- 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
-
- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- 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
- C22C38/44—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
- C22C38/54—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
- C21D2211/002—Bainite
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of low chromium wear-resisting alloy steels and preparation method thereof, pass sequentially through determining process goal value, ingredient, melting, sampling adjustment, the carbon that moulding by casting and the weight percent content for being heat-treated steel alloy obtained are 0.25-0.35%, the silicon of 0.6-1.5%, the manganese of 0.8-1.3%, the phosphorus of < 0.04%, the sulphur of < 0.04%, the chromium of 1-3.5%, the nickel of 0.1-0.5%, the molybdenum of 0.1-0.3%, the boron of 0.03-0.25%, the aluminium of 0.1-0.3%, the cerium of 0.1-1.2%, the tin of 0.02-0.1% and the iron of surplus, abrasion resistance and hardness can either be taken into account, its toughness can be greatly improved again, shock resistance is good, ballistic work is up to 5-8 joules, cobblestone can be smashed easily.
Description
Technical field
The present invention relates to steel alloy manufacturing technology field more particularly to a kind of shock resistance, toughness is high and is suitable for civilian
Low chromium wear-resisting alloy steel for using and promoting and preparation method thereof.
Background technique
Steel alloy is that the iron carbon for adding suitable one or more alloying elements on the basis of ordinary carbon steel and constituting closes
Gold.According to the difference of addition element, and processing technology appropriate is taken, can get high intensity, high tenacity, wear-resisting, corrosion-resistant, resistance to
The properties such as low temperature, high temperature resistant, nonmagnetic.According to the number of alloying element content in steel, and low-alloy steel can be divided into, middle conjunction
Jin Gang and high-alloy steel.The main alloy element of steel alloy have silicon, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, aluminium, copper,
Boron, rare earth etc..Wherein vanadium, titanium, niobium, zirconium etc. are carbide in steel, as long as having enough carbon, in felicity condition
Under, respective carbide can be formed, when scarce carbon or under the high temperature conditions, is then entered in solid solution with state of atom；Manganese, chromium,
Tungsten, molybdenum are carbide former, and a portion is entered in solid solution with state of atom, and another part forms displaced type alloy
Cementite；Aluminium, copper, nickel, cobalt, silicon etc. are not form carbide formers, are generally present in solid solution with state of atom.
Publication No. CN 102978533A, publication date are that on 03 20th, 2013 Chinese patent literatures disclose one kind
High-intensity and high-tenacity steel alloy, chemical component composition are as follows: carbon: 0.14-0.19wt%, silicon: 0.20-0.33wt%, boron:
0.02-0.05wt%, manganese: 0.85%-1.30wt%, phosphorus :≤0.02wt%, sulphur: 0.015-0.02wt%, chromium: 0.08-
0.1wt%, vanadium: 0.6-0.2wt%, nickel: 0.30-0.50wt%, copper: 0.2-0.3wt%, molybdenum: 0.02-0.08wt%, titanium :≤
0.2wt%, niobium :≤0.06wt%, surplus are iron.High-intensity and high-tenacity steel alloy, uses low-carbon disclosed in the patent document
More alloy system proportions, smelting cost is big, and control difficulty is big, and technique is with high requirements and high cost, belongs to dedicated and uses steel grade, civilian popularization
It is difficult.
Publication No. CN 1335417, publication date are that on February 13rd, 2002 Chinese patent literatures disclose a kind of high temperature
Wear-resisting alloy steel, it is characterised in that: melting and other process flows are passed through using the raw material of following components and weight percentage
Made from production: the steel scrap of 77.5-79%, the high carbon ferro-chrome of 18.3-207%, the molybdenum-iron of 0.67-1.0%, 0.33-0.5%'s
Vanadium iron, suitable silicon, manganese deoxidier, the ferrotianium of 0.05-0.1%, the zirconium of 0.02-0.05%, the aluminium and 0.12- of 0.6-1.2%
0.5% rare earth element, steel alloy carbon containing 1.45-1.70%, 11.0-12.5% containing chromium, 0.4- containing molybdenum obtained in this way
0.6%, 0.15-0.30% containing vanadium, titaniferous 0.02-0.05%, 0.02-0.05% containing zirconium, 0.6-1.2% containing aluminium, containing rare earth member
Plain 0.05-0.15%.High-temperature antiwear alloy steel disclosed in the patent document uses the proportion for increasing carbon and high alloy element,
Although improving certain wear-resisting property, the alloy Steel Properties for considerably increasing cost of alloy, and producing close to iron,
Brittleness is larger, and toughness is poor, and the unsuitable country is civilian to use and promote.
Publication No. CN105385939A, the Chinese patent literature that publication date is 20160309 disclose a kind of high-intensitive high
The manufacturing method of tough alloy steel, which is characterized in that including being prepared by the chemical component of following weight percent: carbon 0.3-
0.58%, silicon 0.25-1.38%, manganese 0.55-1.55%, phosphorus≤0.025%, sulphur 0.02-0.025%, chromium 0.09-1.32%,
Nickel 0.28-0.62%, molybdenum 0.02-0.035%, titanium 0.18-0.20%, vanadium 0.2-0.5%, tungsten 0.4-0.9%, niobium 0.3-
0.6%, cobalt 0.11-0.15%, copper 0.2-0.8%, aluminium≤0.2%, boron≤0.15% and nitrogen≤0.3%.The patent document is public
The manufacturing method for the high-intensity and high-tenacity steel alloy opened, is produced with medium carbon steel, although hardness is higher, toughness is poor, is prepared into
The alloy steel brittleness arrived is larger, and for beating cobblestone, steel alloy is easily damaged.
Summary of the invention
The present invention in order to overcome the defects of the prior art described above, provides a kind of low chromium wear-resisting alloy steel and preparation method thereof,
The present invention uses cerium mischmetal, and the materials such as low boron of the low chromium of collocation low-carbon are smelted by intermediate frequency furnace, the steel alloy after heat treatment obtained,
It can either guarantee certain abrasion resistance and hardness, and its toughness can be greatly improved, shock resistance is good, and ballistic work is up to 5-
8 joules, cobblestone can be smashed easily, has smelting cost small, and the easily controllable feature of technique is suitable for civilian using and pushing away
Extensively.
The present invention is achieved through the following technical solutions:
A kind of low chromium wear-resisting alloy steel, which is characterized in that be made of following raw material by weight percentage:
The weight percent content of the carbon is 0.28%, and the weight percent content of chromium is 1.3%, the weight percent of boron
It is 0.06% than content.
The weight percent content of the cerium is 0.6%.
A kind of preparation method of low chromium wear-resisting alloy steel, which is characterized in that be successively made of following processing step:
A, determine that process goal value, weight percent proportion are as follows:
Carbon 0.28%, silicon 1.O%, manganese 1.0%, phosphorus 0.02%, sulphur 0.02%, chromium 1.3%, nickel 0.3%, molybdenum 0.2%, boron
0.06%, aluminium 0.20%, cerium 0.6%, tin 0.08%, surplus is iron；
B, scrap iron, steel scrap, cerium mischmetal and the alloy containing silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin ingredient: are chosen；
C, melting: the ingredient in b step is first put into furnace bottom and is lined in the intermediate frequency furnace of hot lime, then leads to low electricity to intermediate frequency furnace
It flows, full load power transmission after ingredient preheating in intermediate frequency furnace, until ingredient fusing in intermediate frequency furnace；
D, sampling adjustment: by step c melt after ingredient sample, according to liquid medicine or spectrometer analysis measure silicon, manganese,
Chromium, nickel, molybdenum, boron, aluminium and tin weight percent content steel scrap is added and according to the process goal value comparative analysis in a step
With the alloy containing silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin, silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin element content proportion are adjusted
Close to process goal value, the content proportion of graphite adjustment carbon is added close to process goal value, is added within 10 minutes before intermediate frequency furnace out
Cerium mischmetal makes the weight percent content of cerium reach process goal value；
E, moulding by casting: melt addition when temperature is 1600-1700 degrees Celsius after Step d reaches process goal value
Deoxidier, then intermediate frequency furnace out；
F, it is heat-treated: the steel alloy after step e moulding by casting is diffused nodularization, quench, tempering is got product.
Deoxidier in the step e is silico-calcium core-spun yarn, aluminum steel, aluminium manganese iron, steel-core-aluminium, calcium carbide or silicon carbide.
Diffusion nodularization in the f step, which refers to, is heated to 1000 degrees Celsius for the steel alloy after step e moulding by casting, and
Heat preservation 2 hours when then reducing the temperature to 700 degrees Celsius, keeps the temperature 1.5 hours, finally cooling with intermediate frequency furnace.
Steel alloy obtained from quenching in the f step refers to the carbide that will be distributed on matrix after spreading nodularization
When being heated to 980 degrees Celsius, with i.e. by its water quenching cooling.
Tempering in the f step, which refers to, is reheated to 530 degrees Celsius for quenched steel alloy, and keeps the temperature 3 hours,
It is finally cooling with intermediate frequency furnace.
Beneficial effects of the present invention are mainly manifested in following aspect:
One, of the invention, it is final to use " carbon of 0.25-0.35%, the silicon of 0.6-1.5%, 0.8- by numerous experiments
1.3% manganese, the phosphorus of < 0.04%, the sulphur of < 0.04%, the chromium of 1-3.5%, the nickel of 0.1-0.5%, 0.1-0.3% molybdenum,
The boron of 0.03-0.25%, the aluminium of 0.1-0.3%, the cerium of 0.1-1.2%, the tin of 0.02-0.1% and the iron of surplus " is this specific
Proportion, the steel alloy being prepared can either take into account abrasion resistance and hardness, and can greatly improve its toughness, and cast iron is anti-
Impact property is good, and ballistic work is up to 5-8 joules, can smash cobblestone easily.
The present invention uses low-carbon, and carbon is dissolved in iron and forms solid solution, its content is specifically controlled in 0.25-0.35%, energy
Enough ensure the fundamental strength of steel；Silicon energy reinforced ferrite improves the intensity of steel, and deoxidation, Hydrogen Energy power are strong, and manganese can also strengthen iron element
Body, manganese are dissolved in cementite, are obtained alloyed cementite (FeMn)3C, while pearlite can be made to attenuate again, it being capable of effectively desulfurization, phosphorus
Harmful element, chromium can generate carbide Cr7C3、(CrFe)23C6, the hardness of steel is improved, reinforcing dispersion is played；Molybdenum can be thin
Change crystal grain, prevents temper brittleness.The content of silicon specifically controls the content in 0.6-1.5%, manganese and specifically controls in 0.8-
1.3%, depth of hardening zone can be increased, ensure the wearability of steel alloy, and can effectively evade steel belt roof bolt brittleness；Molybdenum
Content specifically control in 0.1-0.3%, can further eliminate temper brittleness, energy while guaranteeing steel alloy ductility
Stable, Dispersed precipitate Carbide Phases are formed, further ensure the intensity of steel alloy；Specifically the content of chromium is controlled in 1-
3.5%, its brittleness can be reduced, and then reduce the brittleness of entire steel alloy；When boron is dissolved in austenite, solubility is lower than
0.03%, the present invention specifically controls boron content in 0.03-0.25%, and it is anti-that chemistry occurs for the boron element and iron of separate out
It answers, produces iron boride, the boron element that can be ensured wearability, and be dissolved in austenite can prevent ferrite itself from giving birth to core, make iron
Ferritic improves harden ability, and uniformity is good around the raw core of boron element；The present invention specifically uses cerium mischmetal, cerium mischmetal energy
Crystal grain is enough refined, melt is purified, eliminates column crystal, improves compactness；The content of cerium is specifically controlled in 0.1-1.2%,
Cerium tin compound is generated with the tin of 0.02-0.1%, without the Ce elements chemically reacted, is then deviated toward crystal boundary, and inlay
On the interface of crystal boundary, prevents from hindering tin atom that segregation phenomena occurs, free tin atom is allowed to be embedded between iron atom, by
It is bigger than the atomic radius of iron atom in the atomic radius of tin atom, make ferrite that lattice deformability occur, to make body hardness, strong
Degree changes；Specifically the content of nickel is controlled in 0.1-0.5%, nickel is pinned in body, can hinder hard compounds
Toward cyrystal boundary segregation, and the body for generating lattice deformability can be made to be difficult to restore, improve its impact flexibility.
Two, of the invention, it passes sequentially through a, determine process goal value；B, ingredient；C, melting；D, sampling adjustment: will be in step c
Ingredient sampling after fusing, the weight percent of silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin is measured according to liquid medicine or spectrometer analysis
Content, and according to the process goal value comparative analysis in a step, steel scrap is added and contains silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin
Alloy, adjustment silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin element content proportion are added graphite and adjust carbon close to process goal value
Content match close to process goal value, 10 minutes addition cerium mischmetals, reach the weight percent content of cerium before intermediate frequency furnace out
To process goal value；E, moulding by casting: melt after Step d reaches process goal value is 1600-1700 degrees Celsius in temperature
When deoxidier is added, then intermediate frequency furnace out；F, it is heat-treated: the steel alloy after step e moulding by casting being diffused nodularization, is quenched
Fire, the steel alloy being tempered can either guarantee certain abrasion resistance and hardness, and can greatly improve its toughness, anti-impact
It is good to hit performance, ballistic work is up to 5-8 joules, can smash cobblestone easily, has smelting cost small, the easily controllable spy of technique
Point is suitable for civilian using and promoting.
Three, of the invention, the deoxidier in step e is silico-calcium core-spun yarn, aluminum steel, aluminium manganese iron, steel-core-aluminium, calcium carbide or carbonization
Silicon, any such deoxidier of selection can react with the oxygen dissolved in molten iron, mainly generate nonmetallic compound, form precipitating
It floats up in slag blanket, pure molten iron can be obtained by being removed, so as to guarantee the fundamental strength of steel alloy.
Four, of the invention, the diffusion nodularization in f step refers to that the steel alloy after step e moulding by casting, which is heated to 1000, to be taken the photograph
Family name's degree, and 2 hours are kept the temperature, when then reducing the temperature to 700 degrees Celsius, 1.5 hours are kept the temperature, it is finally cooling with intermediate frequency furnace, it uses
Temperature heating specific so not only can guarantee that lamellar pearlite disappeared, but also can retain the carbonization that a part is not completely dissolved in austenite
Object ultimately forms the normal spherodized structure of coarseer granular carbide, keeps chemical component uniform, mention as nodularization core
The intensity of high-alloy steel.
Five, of the invention, the quenching in f step refers to obtains the carbide being distributed on matrix after spreading nodularization
Steel alloy when being heated to 980 degrees Celsius, with i.e. by its water quenching cooling, the steel alloy after being quenched can make overcooling austenite into
Row martensite or bainite transformation obtain martensite or bainite structure.
Six, of the invention, the tempering in f step, which refers to, is reheated to 530 degrees Celsius for quenched steel alloy, and keeps the temperature
It is 3 hours, finally cooling with intermediate frequency furnace, it is tempered after steel alloy, quenching stress can be eliminated, and make Transformation of Retained Austenite
Bainite and improve hardness, and then ensure steel alloy wearability, hardness and toughness.
Detailed description of the invention
Fig. 1 is the metallograph that the low chromium wear-resisting alloy steel of the present invention amplifies 100 times under metallographic microscope；
Fig. 2 is the metallograph that the low chromium wear-resisting alloy steel of the present invention amplifies 200 times under metallographic microscope；
Fig. 3 is the metallograph that the low chromium wear-resisting alloy steel of the present invention amplifies 500 times under metallographic microscope.
Specific embodiment
Embodiment 1
A kind of low chromium wear-resisting alloy steel, is made of following raw material by weight percentage:
Embodiment 2
A kind of low chromium wear-resisting alloy steel, is made of following raw material by weight percentage:
The low chromium wear-resisting alloy steel being made of said components, abrasion resistance and hardness is higher, while toughness and shock resistance
Effect is best.
Embodiment 3
A kind of low chromium wear-resisting alloy steel, is made of following raw material by weight percentage:
Embodiment 4
A kind of preparation method of low chromium wear-resisting alloy steel, is successively made of following processing step:
A, determine that process goal value, weight percent proportion are as follows:
Carbon 0.28%, silicon 1.O%, manganese 1.0%, phosphorus 0.02%, sulphur 0.02%, chromium 1.3%, nickel 0.3%, molybdenum 0.2%, boron
0.06%, aluminium 0.20%, cerium 0.6%, tin 0.08%, surplus is iron；
B, scrap iron, steel scrap, cerium mischmetal and the alloy containing silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin ingredient: are chosen；
C, melting: the ingredient in b step is first put into furnace bottom and is lined in the intermediate frequency furnace of hot lime, then leads to low electricity to intermediate frequency furnace
It flows, full load power transmission after ingredient preheating in intermediate frequency furnace, until ingredient fusing in intermediate frequency furnace；
D, sampling adjustment: by step c melt after ingredient sample, according to liquid medicine or spectrometer analysis measure silicon, manganese,
Chromium, nickel, molybdenum, boron, aluminium and tin weight percent content steel scrap is added and according to the process goal value comparative analysis in a step
With the alloy containing silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin, silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin element content proportion are adjusted
Close to process goal value, the content proportion of graphite adjustment carbon is added close to process goal value, is added within 10 minutes before intermediate frequency furnace out
Cerium mischmetal makes the weight percent content of cerium reach process goal value；
E, moulding by casting: deoxidation is added when temperature is 1600 degrees Celsius in the melt after Step d reaches process goal value
Agent, then intermediate frequency furnace out；
F, it is heat-treated: the steel alloy after step e moulding by casting is diffused nodularization, quench, tempering is got product.
It passes sequentially through a, determine process goal value；B, ingredient；C, melting；D, sampling adjustment: matching after being melted in step c
Material sampling, the weight percent content of silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin, and root are measured according to liquid medicine or spectrometer analysis
According to the process goal value comparative analysis in a step, steel scrap and the alloy containing silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin is added, adjusts
The content proportion of graphite adjustment carbon is added close to process goal value in whole silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin element content proportion
Close to process goal value, 10 minutes addition cerium mischmetals, make the weight percent content of cerium reach process goal before intermediate frequency furnace out
Value；E, moulding by casting: deoxidier is added when temperature is 1600 degrees Celsius in the melt after Step d reaches process goal value, so
Go out intermediate frequency furnace afterwards；F, it is heat-treated: the steel alloy after step e moulding by casting is diffused nodularization, quench, the alloy being tempered
Steel can either guarantee certain abrasion resistance and hardness, and can greatly improve its toughness, and shock resistance is good, and ballistic work is high
Up to 5-8 joules, cobblestone can be smashed easily, have smelting cost small, the easily controllable feature of technique is suitable for civilian use
And popularization.
Embodiment 5
A kind of preparation method of low chromium wear-resisting alloy steel, is successively made of following processing step:
A, determine that process goal value, weight percent proportion are as follows:
Carbon 0.28%, silicon 1.O%, manganese 1.0%, phosphorus 0.02%, sulphur 0.02%, chromium 1.3%, nickel 0.3%, molybdenum 0.2%, boron
0.06%, aluminium 0.20%, cerium 0.6%, tin 0.08%, surplus is iron；
B, scrap iron, steel scrap, cerium mischmetal and the alloy containing silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin ingredient: are chosen；
C, melting: the ingredient in b step is first put into furnace bottom and is lined in the intermediate frequency furnace of hot lime, then leads to low electricity to intermediate frequency furnace
It flows, full load power transmission after ingredient preheating in intermediate frequency furnace, until ingredient fusing in intermediate frequency furnace；
D, sampling adjustment: by step c melt after ingredient sample, according to liquid medicine or spectrometer analysis measure silicon, manganese,
Chromium, nickel, molybdenum, boron, aluminium and tin weight percent content steel scrap is added and according to the process goal value comparative analysis in a step
With the alloy containing silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin, silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin element content proportion are adjusted
Close to process goal value, the content proportion of graphite adjustment carbon is added close to process goal value, is added within 10 minutes before intermediate frequency furnace out
Cerium mischmetal makes the weight percent content of cerium reach process goal value；
E, moulding by casting: deoxidation is added when temperature is 1650 degrees Celsius in the melt after Step d reaches process goal value
Agent, then intermediate frequency furnace out；
F, it is heat-treated: the steel alloy after step e moulding by casting is diffused nodularization, quench, tempering is got product.
Deoxidier in the step e is silico-calcium core-spun yarn, aluminum steel, aluminium manganese iron, steel-core-aluminium, calcium carbide or silicon carbide.
Diffusion nodularization in the f step, which refers to, is heated to 1000 degrees Celsius for the steel alloy after step e moulding by casting, and
Heat preservation 2 hours when then reducing the temperature to 700 degrees Celsius, keeps the temperature 1.5 hours, finally cooling with intermediate frequency furnace.
Deoxidier in step e is silico-calcium core-spun yarn, aluminum steel, aluminium manganese iron, steel-core-aluminium, calcium carbide or silicon carbide, any selection
Such deoxidier can be reacted with the oxygen dissolved in molten iron, mainly generate nonmetallic compound, formed precipitating and floated up to slag blanket
In, pure molten iron can be obtained by being removed, so as to guarantee the fundamental strength of steel alloy.
Diffusion nodularization in f step, which refers to, is heated to 1000 degrees Celsius for the steel alloy after step e moulding by casting, and keeps the temperature
2 hours, when then reducing the temperature to 700 degrees Celsius, 1.5 hours are kept the temperature, it is finally cooling with intermediate frequency furnace, using temperature specific in this way
Degree heating not only can guarantee that lamellar pearlite disappeared, but also can retain the carbide that a part is not completely dissolved in austenite, as nodularization
Core ultimately forms the normal spherodized structure of coarseer granular carbide, keeps chemical component uniform, improves the strong of steel alloy
Degree.
Embodiment 6
A kind of preparation method of low chromium wear-resisting alloy steel, is successively made of following processing step:
A, determine that process goal value, weight percent proportion are as follows:
Carbon 0.28%, silicon 1.O%, manganese 1.0%, phosphorus 0.02%, sulphur 0.02%, chromium 1.3%, nickel 0.3%, molybdenum 0.2%, boron
0.06%, aluminium 0.20%, cerium 0.6%, tin 0.08%, surplus is iron；
B, scrap iron, steel scrap, cerium mischmetal and the alloy containing silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin ingredient: are chosen；
C, melting: the ingredient in b step is first put into furnace bottom and is lined in the intermediate frequency furnace of hot lime, then leads to low electricity to intermediate frequency furnace
It flows, full load power transmission after ingredient preheating in intermediate frequency furnace, until ingredient fusing in intermediate frequency furnace；
D, sampling adjustment: by step c melt after ingredient sample, according to liquid medicine or spectrometer analysis measure silicon, manganese,
Chromium, nickel, molybdenum, boron, aluminium and tin weight percent content steel scrap is added and according to the process goal value comparative analysis in a step
With the alloy containing silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin, silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin element content proportion are adjusted
Close to process goal value, the content proportion of graphite adjustment carbon is added close to process goal value, is added within 10 minutes before intermediate frequency furnace out
Cerium mischmetal makes the weight percent content of cerium reach process goal value；
E, moulding by casting: deoxidation is added when temperature is 1700 degrees Celsius in the melt after Step d reaches process goal value
Agent, then intermediate frequency furnace out；
F, it is heat-treated: the steel alloy after step e moulding by casting is diffused nodularization, quench, tempering is got product.
Deoxidier in the step e is silico-calcium core-spun yarn, aluminum steel, aluminium manganese iron, steel-core-aluminium, calcium carbide or silicon carbide.
Diffusion nodularization in the f step, which refers to, is heated to 1000 degrees Celsius for the steel alloy after step e moulding by casting, and
Heat preservation 2 hours when then reducing the temperature to 700 degrees Celsius, keeps the temperature 1.5 hours, finally cooling with intermediate frequency furnace.
Steel alloy obtained from quenching in the f step refers to the carbide that will be distributed on matrix after spreading nodularization
When being heated to 980 degrees Celsius, with i.e. by its water quenching cooling.
Tempering in the f step, which refers to, is reheated to 530 degrees Celsius for quenched steel alloy, and keeps the temperature 3 hours,
It is finally cooling with intermediate frequency furnace.
The heating of steel alloy obtained from quenching in f step refers to the carbide that will be distributed on matrix after spreading nodularization
When to 980 degrees Celsius, with i.e. by its water quenching cooling, the steel alloy after being quenched can make overcooling austenite carry out martensite or shellfish
The transformation of family name's body, obtains martensite or bainite structure.
Tempering in f step, which refers to, is reheated to 530 degrees Celsius for quenched steel alloy, and keeps the temperature 3 hours, finally
It is cooling with intermediate frequency furnace, it is tempered after steel alloy, quenching stress can be eliminated, and make Transformation of Retained Austenite bainite and mention
High rigidity, and then ensure wearability, hardness and the toughness of steel alloy.
Claims (8)
1. a kind of low chromium wear-resisting alloy steel, which is characterized in that be made of following raw material by weight percentage:
2. a kind of low chromium wear-resisting alloy steel according to claim 1, it is characterised in that: the weight percent content of the carbon
It is 0.28%, the weight percent content of chromium is 1.3%, and the weight percent content of boron is 0.06%.
3. a kind of low chromium wear-resisting alloy steel according to claim 1, it is characterised in that: the weight percent content of the cerium
It is 0.6%.
4. a kind of preparation method of low chromium wear-resisting alloy steel according to claim 1, which is characterized in that successively by following work
Skill step composition:
A, determine that process goal value, weight percent proportion are as follows:
Carbon 0.28%, silicon 1.O%, manganese 1.0%, phosphorus 0.02%, sulphur 0.02%, chromium 1.3%, nickel 0.3%, molybdenum 0.2%, boron
0.06%, aluminium 0.20%, cerium 0.6%, tin 0.08%, surplus is iron；
B, scrap iron, steel scrap, cerium mischmetal and the alloy containing silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin ingredient: are chosen；
C, melting: being first put into furnace bottom for the ingredient in b step and be lined in the intermediate frequency furnace of hot lime, then lead to low current to intermediate frequency furnace,
Full load power transmission after ingredient preheating in intermediate frequency furnace, until ingredient fusing in intermediate frequency furnace；
D, sampling adjustment: by step c melt after ingredient sample, according to liquid medicine or spectrometer analysis measure silicon, manganese, chromium, nickel,
Molybdenum, boron, aluminium and tin weight percent content steel scrap is added and contains and according to the process goal value comparative analysis in a step
Silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin alloy, adjustment silicon, manganese, chromium, nickel, molybdenum, boron, aluminium and tin element content proportion are close to work
Skill target value, the content that graphite adjustment carbon is added are matched close to process goal value, 10 minutes addition cerium mischmetals before intermediate frequency furnace out,
The weight percent content of cerium is set to reach process goal value；
E, moulding by casting: deoxidation is added when temperature is 1600-1700 degrees Celsius in the melt after Step d reaches process goal value
Agent, then intermediate frequency furnace out；
F, it is heat-treated: the steel alloy after step e moulding by casting is diffused nodularization, quench, tempering is got product.
5. a kind of preparation method of low chromium wear-resisting alloy steel according to claim 4, it is characterised in that: in the step e
Deoxidier be silico-calcium core-spun yarn, aluminum steel, aluminium manganese iron, steel-core-aluminium, calcium carbide or silicon carbide.
6. a kind of preparation method of low chromium wear-resisting alloy steel according to claim 4, it is characterised in that: in the f step
Diffusion nodularization refer to the steel alloy after step e moulding by casting be heated to 1000 degrees Celsius, and keep the temperature 2 hours, then will be warm
When degree drops to 700 degrees Celsius, 1.5 hours are kept the temperature, it is finally cooling with intermediate frequency furnace.
7. a kind of preparation method of low chromium wear-resisting alloy steel according to claim 4, it is characterised in that: in the f step
Quenching refer to the carbide being distributed on matrix after spreading nodularization obtained from steel alloy when being heated to 980 degrees Celsius,
With i.e. by its water quenching cooling.
8. a kind of preparation method of low chromium wear-resisting alloy steel according to claim 4, it is characterised in that: in the f step
Tempering refer to quenched steel alloy be reheated to 530 degrees Celsius, and keep the temperature 3 hours, it is finally cooling with intermediate frequency furnace.
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| CN115013601A (en) * | 2022-07-01 | 2022-09-06 | 江苏徐工工程机械研究院有限公司 | Concrete conveying pipe, manufacturing method thereof and concrete pump truck |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102770571A (en) * | 2010-01-29 | 2012-11-07 | 新日本制铁株式会社 | Steel sheet and method for producing steel sheet |
| CN103572172A (en) * | 2013-11-22 | 2014-02-12 | 乐山市泰钢鑫科机械制造有限公司 | Wear-resistant alloy steel and preparation method thereof |
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- 2017-05-23 CN CN201710369288.3A patent/CN108950376A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102770571A (en) * | 2010-01-29 | 2012-11-07 | 新日本制铁株式会社 | Steel sheet and method for producing steel sheet |
| CN103572172A (en) * | 2013-11-22 | 2014-02-12 | 乐山市泰钢鑫科机械制造有限公司 | Wear-resistant alloy steel and preparation method thereof |
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| CN115013601A (en) * | 2022-07-01 | 2022-09-06 | 江苏徐工工程机械研究院有限公司 | Concrete conveying pipe, manufacturing method thereof and concrete pump truck |
| CN115013601B (en) * | 2022-07-01 | 2023-11-07 | 江苏徐工工程机械研究院有限公司 | Concrete conveying pipe, manufacturing method thereof and concrete pump truck |
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Effective date of registration: 20190517 Address after: 614000 No. 1800 Xingye Road, Shizhong District, Leshan City, Sichuan Province Applicant after: LESHAN TAIGANG SUNKO'S MACHINERY MANUFACTURING CO., LTD. Address before: 614000 No. 1800 Xingye Road, Shizhong District, Leshan City, Sichuan Province Applicant before: Chen Zhanghua |
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Application publication date: 20181207 |