CN105081610B - It is exclusively used in the metal powder core solder wire of hot-work die reparation - Google Patents
It is exclusively used in the metal powder core solder wire of hot-work die reparation Download PDFInfo
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- CN105081610B CN105081610B CN201510607230.9A CN201510607230A CN105081610B CN 105081610 B CN105081610 B CN 105081610B CN 201510607230 A CN201510607230 A CN 201510607230A CN 105081610 B CN105081610 B CN 105081610B
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- powder
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- core solder
- solder wire
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- 239000000843 powder Substances 0.000 title claims abstract description 175
- 239000002184 metal Substances 0.000 title claims abstract description 139
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 137
- 229910000679 solder Inorganic materials 0.000 title claims abstract description 57
- 238000003466 welding Methods 0.000 claims abstract description 117
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 46
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 35
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 32
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 32
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 30
- 229910000604 Ferrochrome Inorganic materials 0.000 claims abstract description 25
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 25
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000011572 manganese Substances 0.000 claims abstract description 25
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims abstract description 24
- 108010038629 Molybdoferredoxin Proteins 0.000 claims abstract description 23
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 23
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 22
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims abstract description 21
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 claims abstract description 20
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 19
- 239000010439 graphite Substances 0.000 claims abstract description 19
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000003647 oxidation Effects 0.000 claims abstract description 16
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 229910052786 argon Inorganic materials 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 27
- 239000011651 chromium Substances 0.000 claims description 22
- 239000012535 impurity Substances 0.000 claims description 17
- 229910052710 silicon Inorganic materials 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000011049 filling Methods 0.000 claims description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims description 10
- 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 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 1
- JZJNHPJBZWEHPD-UHFFFAOYSA-N [F].[Na] Chemical compound [F].[Na] JZJNHPJBZWEHPD-UHFFFAOYSA-N 0.000 claims 1
- 239000011733 molybdenum Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 17
- 239000000956 alloy Substances 0.000 abstract description 17
- 150000004767 nitrides Chemical class 0.000 abstract description 15
- 230000002929 anti-fatigue Effects 0.000 abstract description 10
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 8
- 238000005728 strengthening Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract description 4
- 230000003749 cleanliness Effects 0.000 abstract description 3
- 239000010813 municipal solid waste Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 32
- 239000011812 mixed powder Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 15
- 238000005275 alloying Methods 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- 238000005303 weighing Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000013078 crystal Substances 0.000 description 8
- 235000013350 formula milk Nutrition 0.000 description 8
- 230000007704 transition Effects 0.000 description 8
- 235000013339 cereals Nutrition 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 239000002585 base Substances 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 235000020610 powder formula Nutrition 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 241000209094 Oryza Species 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- 239000011324 bead Substances 0.000 description 5
- 238000005253 cladding Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 5
- 239000012467 final product Substances 0.000 description 5
- 238000005242 forging Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910000734 martensite Inorganic materials 0.000 description 5
- 239000004482 other powder Substances 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- 238000004506 ultrasonic cleaning Methods 0.000 description 5
- 238000005491 wire drawing Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 229910001021 Ferroalloy Inorganic materials 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 3
- -1 chrome nitride Chemical class 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 238000006056 electrooxidation reaction Methods 0.000 description 2
- 229910001009 interstitial alloy Inorganic materials 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003019 stabilising effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 206010019332 Heat exhaustion Diseases 0.000 description 1
- 229910003296 Ni-Mo Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229910000720 Silicomanganese Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- SJKRCWUQJZIWQB-UHFFFAOYSA-N azane;chromium Chemical compound N.[Cr] SJKRCWUQJZIWQB-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005552 hardfacing Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004372 laser cladding Methods 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical compound [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention provides be exclusively used in hot-work die reparation metal powder core solder wire, include welding wire tube wall be wrapped in its interior medicated powder；Described medicated powder is made up of the raw material of following mass parts：Electrolytic manganese 48,45# ferrosilicon 26, ferrotianium 14, crome metal 20 35, high carbon ferro-chrome 20 30, graphite 05, vanadium iron 26, molybdenum-iron 12 18, tungsten powder 24, nikel powder 48, nano silicon nitride chromium powder 12, aoxidize yttrium powder 26, potassium feldspar 12, prodan 14.By adding nano chromium nitride powder, deposited metal forms tiny nitride gap phase, makes deposited metal have good toughness and cracking resistance；Add yittrium oxide in alloy powder, purify deposited metal, nodularization field trash, promote to form nitride strengthening phase, improve the anti-fatigue performance of deposited metal.The argon-rich gas shielded gas metal-arc welding technology of applied metal flux cored wire cooperation is repaired to hot-work die, and the deposited metal obtaining has excellent high-temperature oxidation resistance, wearability, cleanliness factor and good fatigue resistance energy.
Description
Technical field
The invention belongs to field of welding material, more particularly, to it is exclusively used in the metal powder core solder wire of hot-work die reparation.
Background technology
In recent years, with China's metallurgical industry and manufacturing fast development, mould particularly hot-work die, such as Hot-roller
The consumption making roller, hot-forging die, hot extruding die, hot blanking die etc. is increasing, become in commercial production widely apply disappear
One of consumable component.Mould lost efficacy because the reasons such as abrasion and heat exhaustion can produce peeling, scratch, abrasion etc. in use.
How to improve the study hotspot of its service life always concern both at home and abroad.The life-span of mould depend primarily on mold materials,
Several aspect such as structure design, Technology for Heating Processing, processing.China's die life only has external 1/2-1/3, there is precision
The low, problem of process-cycle length.In view of the inefficacy of mould is mostly by surface, from save energy and resource, give full play to material
Material performance potential simultaneously obtains property and maximum technical economic benefit is set out, and improves and improve the performance of die-face material
It is the key extending die life.In production, the method frequently with built-up welding prepares alloy-layer on die blank, obtains double
Metal die, had both reduced cost, improve the performance of mould again；Built-up welding is also the important technology that repairing mould extends its life-span
Means.Built-up welding needs the welding material supporting with various die steels.
The welding material that built-up welding is commonly used has welding rod and welding wire.Welding rod adopts gas slag Combined Protection, and metallurgical quality is preferably, permissible
By coating and core wire transition alloy elements, weld seam impurity content is few, cleanliness factor is higher, and weld seam has higher fatigue resistance
Energy.Welding rod, using flexibly, is also relatively suitable for the short weld seam of mould repair and irregular weld seam operating mode simultaneously.Therefore, welding rod is commonly used
In the Bead weld repair of small mould, people have developed multiple hot-work die surfacing weldings for this, and such as publication No. is
The weight hundred of patent " hot forged mould Bead weld repair and remanufacture use special welding rod " its chemical composition of coating of CN102240872A
Dividing than (wt%) is titanium dioxide 1-3, marble 25-40, fluorite 10-15, quartzy 3-5, chalk 2-4, and high carbon ferro-chrome 8-12 is high
Carbon ferromanganese 2-4, ferrosilicon 2-4, ferrotianium 6-9, molybdenum-iron 9-11, cerium oxide 4-8, metallic nickel 5-8, graphite 1-2；Core wire is H08A.
This welding rod adopts Cr-Ni-Mo alloy system, and the maximum level of electrode coating medium high carbon ferrochrome is 12%, the Cr content of deposited metal
Far below 11% it is difficult to ensure that deposited metal has enough oxidation resistances at 800 DEG C and less than 800 DEG C, for Forming Die
During tool built-up welding, high-temperature oxidation resistance is poor；The carbide former that this patent welding rod adds is mainly Cr, the carbide of Cr
It is interstitial compound, the fusing point of interstitial compound and hardness, not as the height of gap phase, are also easier during heating to decompose, nitride
Form gap phase with some carbides (as carbide of Ti, V, Nb), it is tiny etc. that gap phase has high rigidity, high-melting-point, size
Advantage, but this welding rod does not adopt nitride strengthening；In addition, the alloying element that this welding rod plays Grain refinement only has Mo.Award
Power notification number CN2507605Y " Mold Surfacing Electrode " utility model patent proposes a kind of flux-cored electrode tubular electrode for mould built-up welding, should
Welding rod makees conductive carrier with high-quality seamless steel pipe, and pipe is outer to scribble coating, fills granular alloy medicated core in pipe, and end welding is provided with folder
Hold end.This patent is without reference to the Ju Ti Pei Fang of medicated core and coating.Though welding rod has above-mentioned advantage, welding rod is unsuitable for automatically
Weldering, built-up welding is less efficient, using few in the built-up welding of large-scale hot-work die.Welding wire can be used for automatic welding, and welding efficiency is high, weldering
Connect steady quality, therefore, welding wire is the welding material that large mold built-up welding is commonly used.Welding wire is divided into solid welding wire and flux-cored wire,
Deposited metal of dies alloying element content is higher, and the high solid welding wire of alloying element content manufactures difficulty, so mould built-up welding master
Flux-cored wire to be used, especially most widely used with the metal powder core solder wire that metal and ferroalloy powder mainly form for medicated powder, metal powder
Core soldering wire alloy composition adjustment is easy, it is easy to manufacture, and weld seam no slag, multiple-bead deposit substantially is without scarfing cinder, welding production efficiency
Height, also will not produce dreg defect.In recent years, people to research and development, mould built-up welding metal powder core solder wire is heavier regards, such as authorize
The patent of invention " tungsten-pole argon arc-welding metal-powder-core weld wire for aged martensite steel and its manufacture method " of notification number CN1093450C is public
Open a kind of argon tungsten-arc welding metal powder core solder wire for mould built-up welding, in metal-powder-core, the weight proportion of each powder is：
39-78%Ni, 0-26%Co, 0-18%Mo, 0.2-6%Ti, 0.7-1.68%Al, 0.2-1.455%Nb, 0-0.72%Re,
0-0.15%Te, 0-0.25%Se, 0.02-0.04%B, 0.01-0.02%Zr, 0.01-0.1%Ca, medicated core accounts for the weight of welding wire
Amount percentage ratio is 30-52%.Authorization Notice No. is a kind of CN103008924B patent of invention " medicated core for forging mold built-up welding
Welding wire and application " discloses a kind of flux-cored wire for forging mold, and welding wire adopts carbon steel steel band to wrap up medicated core powder,
Flux-cored wire filling rate is 30%-37%, and medicated core powder includes the material of following weight/mass percentage composition：Calcium fluoride 4%-7% is pure
Alkali 0.5%-3%, quartzy 0.5%-4%, rutile 2%-6%, high carbon ferro-chrome 13.6%-27.2%, pure chromium powder 13.9%-
19.2%, nikel powder 2.2%-5.7%, electrolytic manganese 1.8%-4.3%, molybdenum-iron powder 6.3%-13.2%, ferrosilicon powder 2.1%-
5.0%, vanadium iron powder 0.6%-1.9%；Balance of reduced iron powder.A kind of Application No. 201410748560.5 patent of invention " heat
Flux-cored wire disclosed in forging mould Gas Shielded welding flux-cored wire " adopts Cr-Ni-Mo-W-V-Co alloy system, adopts
CO2Gas shielded arc welding, adds Co to improve oxidative resistance, red hardness, anti-wear performance, but cost significantly improves.
Deposited metal high-temperature oxidation resistance is excellent, wearability is good, cleanliness factor is high, have the built-up welding of good fatigue resistance energy
Metal powder core solder wire is the welding material that Making mold and reparation remanufacture urgent need, the property of such metal powder core solder wire of current China
Can with abroad also there is larger gap.Research and development hot-work die built-up welding metal powder core solder wire has for improving the hot-work die life-span
Significance.
Content of the invention
For the deficiencies in the prior art, the present invention provides a kind of martensitic matrix by the optimization design of alloy powder formula
Deposited metal of dies flux cored wire, by adding nano chromium nitride powder and yttrium oxide powder in iron(-)base powder, make
Deposited metal can meet the technology such as hot-work die high-temperature oxidation resistance, high-wearing feature, high-cleanness, high, anti-fatigue performance simultaneously will
Ask.
Although existing deposited metal be iron-based metal powder core solder wire the aspects such as hardness, compactness, bond strength with
Ni-based metal powder core solder wire is about the same, but the toughness of iron-based deposited metal is less than Ni-based it is difficult to meet wanting of high tenacity
Ask.The molten bath existence time of the arc weldings such as argon-rich gas shielded gas metal-arc welding is short, using its smelting of micron powder
Gold reacts insufficient it is difficult to form enough nitride, carbide hard phase.Therefore, pass through in the present invention to add nanometer nitrogen
Change chromium powder end to improve its toughness and cracking resistance so as to the standard that can reach hot-work die high tenacity and cracking resistance will
Ask.Meanwhile, nanometer grade powder activity is big, and metallurgical reaction acutely, makes up that arc welding molten bath existence time is short, metallurgical reaction is insufficient
The drawbacks of so as to be suitable to the arc welding methods such as argon-rich gas shielded gas metal-arc welding, submerged-arc welding.
Wherein, described " hot-work die " is primarily referred to as hammering mould, hot top forging mould, hot-extrusion mold, hot blanking die
Tool, finish forge mould or die casting etc..
Concrete technical scheme is as follows：
A kind of be exclusively used in hot-work die reparation metal powder core solder wire, include welding wire tube wall be wrapped in its interior medicated powder；
It is characterized in that：Described medicated powder is made up of the raw material of following mass parts：Electrolytic manganese 4-8,45# ferrosilicon 2-6, ferrotianium 1-4, crome metal
20-35, high carbon ferro-chrome 20-30, graphite 0-5, vanadium iron 2-6, molybdenum-iron 12-18, tungsten powder 2-4, nikel powder 4-8, nano silicon nitride chromium powder 1-
2, aoxidize yttrium powder 2-6, potassium feldspar 1-2, prodan 1-4.
Deposited metal containing nano silicon nitride chromium powder has excellent high temperature hardness, anti-wear performance, and good toughness
And cracking resistance, therefore, nano silicon nitride chromium powder is preferably as the basic material of the hardfacing alloy powder for forming hot-work die
Use.
Wherein, when the content of nano silicon nitride chromium powder is less than 1 mass parts, high temperature hardness, anti-wear performance, toughness and crack resistance
Can be bad.On the other hand, if the content of nano silicon nitride chromium powder is higher than 2 mass parts, deposited metal is also easy to produce gas hole defect, cost
Also raise.The present invention has been acknowledged by following result：If the content of nano silicon nitride chromium powder is not less than 1 mass parts and is less than 2 matter
During amount part, high temperature hardness, anti-wear performance, toughness and the cracking resistance of expectation can be obtained.
Oxidation yttrium element is as more than in addition to metal and ferroalloy, nanometer chrome nitride and inevitable impurity point
The metal-oxide comprising, it plays and purifies deposited metal, nodularization field trash, promotes to form nitride gap phase, improves built-up welding
The effect of the anti-fatigue performance of metal.For its content, although cannot treat different things as the same, when the content of yittrium oxide is less than 2 matter
During amount part, may result in yittrium oxide and purify and anti-fatigue performance decreased effectiveness.On the other hand, the content of yittrium oxide is higher than 6 matter
During amount part, may result in high temperature hardness and wear resistance decrease, therefore, in the application, the addition of yittrium oxide is limited to 6
Below mass parts, thus without generation the problems referred to above.
Preferably, described medicated powder is made up of the raw material of following mass parts：Electrolytic manganese 6-8,45# ferrosilicon 3-6, ferrotianium 2-4, gold
Belong to chromium 25-35, high carbon ferro-chrome 24-30, graphite 2-5, vanadium iron 3-6, molybdenum-iron 14-18, tungsten powder 3-4, nikel powder 5-8, nanometer chrome nitride
Powder 1.2-2, aoxidizes yttrium powder 3-6, potassium feldspar 1.2-2, prodan 2-4.
Preferably, described medicated powder is made up of the raw material of following mass parts：Electrolytic manganese 6-7,45# ferrosilicon 3-5, ferrotianium 2-3, gold
Belong to chromium 25-30, high carbon ferro-chrome 24-28, graphite 2-3, vanadium iron 3-4, molybdenum-iron 14-16, tungsten powder 3-3.5, nikel powder 5-6, nano silicon nitride
Chromium powder 1.2-1.8, aoxidizes yttrium powder 3-5, potassium feldspar 1.2-1.8, prodan 2-3.
Mn content is not less than 99.5% to the composition of described electrolytic manganese by quality ratio；The composition of 45# ferrosilicon is by quality ratio
40.0%-47.0%Si, 0.1%C, remaining for Fe with the impurity that do not affect performance；The composition of ferrotianium is 23%- by quality ratio
35%Ti, 8.5%Al, 5%Si, 2.5%Mn, remaining for Fe with the impurity that do not affect performance；The composition of crome metal is by quality ratio
Cr content is not less than 98%；Cr is not more than for 6%～10%, Si the composition of high carbon ferro-chrome not less than 60%, C by quality ratio
3%, S are less than 0.04%, P and are less than 0.04%, remaining for Fe with the impurity that do not affect performance；The composition of graphite is by quality ratio
It is 94%～99%C；The composition of vanadium iron is 50%V, 0.2%C, 2%Si, 0.8%Al by quality ratio, remaining for Fe with do not affect
The impurity of performance；The composition of molybdenum-iron is 50%Mo, 3%Si by quality ratio, remaining for Fe with the impurity that do not affect performance；Tungsten powder
W content is not less than 98% to composition by quality ratio；Ni content is not less than 98% to the composition of nikel powder by quality ratio.
For the above-mentioned alloy powder of the present invention, preferably described electrolytic manganese, 45# ferrosilicon, ferrotianium, crome metal, high carbon chromium
It is micro- that ferrum, graphite, vanadium iron, molybdenum-iron, tungsten powder, nikel powder, oxidation yttrium powder, potassium feldspar and prodan granularity are 75 microns～180
Rice (i.e. granularity is -80 mesh～+200 mesh).
In the present invention, the addition of nano chromium nitride powder, tiny nitride gap phase can be formed in deposited metal,
Utilize nano chromium nitride powder crystal grain thinning (granularity of nano chromium nitride powder is less than 100 nanometers) simultaneously, improve deposited metal
High temperature hardness, anti-wear performance, and make it have good toughness, cracking resistance and anti-fatigue performance, nanoscale nitrogenizes chromium powder
End activity is big, and metallurgical reaction acutely, can make up the drawbacks of arc surfacing molten bath existence time is short, metallurgical reaction is insufficient, fits
In the arc surfacing technique such as argon-rich gas shielded gas metal-arc welding, submerged-arc welding；On the other hand, in order to meet built-up welding gold
Belong to high-cleanness, high, the requirement of anti-fatigue performance, by adding oxidation yttrium element in alloy powder, purify deposited metal, nodularization
Field trash, promote formed nitride strengthening phase, improve deposited metal anti-fatigue performance.Designed by rational alloy system, make
Deposited metal obtains martensitic matrix tissue plus a small amount of retained austenite tissue, and using nitride, carbide as hardening constituent；Logical
Cross Metallurgical processing and raw material is preferred, reduce the impurity content such as deposited metal S, P, and improve processing performance.
For the iron(-)base powder of the present invention, it includes at least following alloying element：C、N、Si、Mn、Cr、Mo、V、
Ti、Ni、W.When containing above-mentioned alloying element in iron(-)base powder, the deposited metal of preparation have certain high temperature hardness and
Corrosion resistance, ensure that chromium nitride and the maximization of yittrium oxide reinforced effects.
The medicated powder of metal powder core solder wire can also be using being combined with the former of other metal powders than that described above or alloyed powder
Feed powder end forms.Now, be premised on the feature not destroying the present invention.
In the present invention, metal powder core solder wire medicated powder is mixed, in order to drop for the powder such as chromium nitride, vanadium iron, ferrosilicon, ferrotianium
Low welding material cost, reduces spatter, improves arc stability, improves appearance of weld, is preferably added a certain amount of steady
Arc agent,
Wherein, potassium feldspar and prodan, as arc stabilizer, play stable electric arc, reduce the effect splashed, and make built-up welding gold
The effect that metal surface quality is lifted further.Can be used alone and can also be used in mixed way, when used as a mixture, make
The content of potassium feldspar and prodan is in described scope.When the total content of potassium feldspar and prodan is less than 0.1 mass parts,
Its stable electric arc, reduce splash, the effect that improves deposited metal surface forming inconspicuous.On the other hand, if potassium feldspar and fluorine
When the total content of sodium silicate is higher than 4 mass parts, the effect that stabilising arc, reduction are splashed also further is not improved, and relatively reduces
The addition of alloying element.Have been acknowledged by following result：Make potassium feldspar and prodan content respectively more than 0.1 mass parts and
During scope below 2 mass parts, good stabilising arc can be obtained, reduce the effect of deposited metal molding of splashing, improve.Preferably use
Mean diameter is 48 microns～180 microns of powder
Preferably, when the alloy powder of the present invention is used for processing hot die steel, (carbon mass fraction is generally less than
0.5%, the alloying element being commonly incorporated into has：Cr, Mn, W, Mo, V, Si, Ni, Nb, Al etc.), typically, since adding in cladding layer
Add Cr, the element such as Ni, Mo, galvanic element can be formed therefore between cladding layer and base material, thus there is electrochemical corrosion, but by
All with the addition of Cr in hot-work die itself and cladding powder, the element such as Ni, Mo and make electrochemical reaction be difficult to Fast Persistence
Carry out.First, Cr can be dissolved in Ni in the alloy thus forming Ni-Cr solid solution, and plays significant passivation；Secondly,
In corrosion process, Cr part replaces the Fe in rusty scale alpha-feooh, defines oxyhydroxide α-(Fe1-xCrx) OOH.Due to
This rusty scale microstructure is comparatively dense and relatively stable, can isolate matrix material well with corrosive medium, simultaneously its pole
High impedance can reduce the speed of electrochemical reaction again well.And Mo can crystal grain thinning, solution strengthening, formation in steel
Cured layer, this cured layer and matrix are firmly combined with, and form passivation, thus have good protective value.Simultaneously because
In laser cladding process, laser beam is short with the interaction time of powder, therefore has larger cooling in rapidly cooling procedure
Degree, and the alloying element in powder can form multiple compounds, increases the quantity of non-spontaneous forming core further, greatly improves forming core
Rate, finally makes the fine microstructures of cladding layer fine and close.Fine and closely woven tissue not only reduces the impurity content on unit crystal boundary, and
Decrease the component segregation being formed due to quick cooling, thus reducing the impact of the accelerated corrosion because of galvanic effect.Institute
, either for corrosion weight loss amount, according further to more scientific corrosion weight loss rate analysis, hot-work die to be all described
Comprise Cr, during tri- kinds of elements of Ni, Mo, the sample of cladding layer has more preferable corrosion resistance, and not due to electrochemical corrosion
And galvanic effect and accelerate the corrosion of base material.The powder demonstrating the present invention has the decay resistance consistent with base material, very
Good meets the design requirement that hot-work die reparation remanufactures.
The cross sectional shape of flux-cored wire is more complicated, more symmetrical, and electric arc is more stable, and the metallurgical reaction of medicated core and protective effect are got over
Fully.But it is as the reduction of gage of wire, this difference is gradually reduced.For the flux-cored wire of the present invention, when welding wire is straight
When footpath is between 2.4 millimeters～4.0 millimeters, when flux-cored wire cross sectional shape is using " O " type, arc stability highest, medicated core welds
The filling rate of silk is also higher, can achieve higher alloy transfer.
In above-mentioned hot-work die built-up welding metal powder core solder wire：Preferred SPCC or H08A of tube wall of described flux-cored wire is low
Prepared by carbon steel steel band.
It is preferred embodiment：It is 0.3～0.5mm that the tube wall of described flux-cored wire selects wall thickness, and width is 14～16mm
SPCC steel band preparation；Its chemical composition is preferred by percentage to the quality：C is not more than 0.12%, Si and is not more than 0.05%, Mn not
More than 0.5%, S be not more than 0.035%, P be not more than 0.035%, remaining for Fe with the impurity that do not affect performance.
The filling rate of above-mentioned hot-work die built-up welding metal powder core solder wire be 30%～55% (filling rate be medicated powder quality
Ratio with medicated powder, steel band quality sum).
In above-mentioned medicated powder, the effect of each component is as follows：
The effect of electrolytic manganese is component controlling, and manganese metal impurity content is few, beneficial to the purification of deposited metal.
The effect of 45# ferrosilicon is component controlling, combines addition medicated powder, the effect of silicomanganese combined deoxidation with electrolytic manganese
Good.
The effect of ferrotianium is deoxidation, and carbide precipitate TiC and nitride TiN, and crystal grain thinning, by fine grain and precipitated phase
Two ways strengthens weld seam, improves the hardness of deposited metal.
The effect of crome metal and high carbon ferro-chrome is to weld metal transition Cr, and Resistance of Weld Metal plays solution strengthening effect,
The weld seam of carbide precipitate strengthening simultaneously, Cr content reaches more than 11% high-temperature oxidation resistance that can also improve deposited metal.High
Carbon ferrochrome in addition to transition Cr, also to weld seam transition C.
The effect of graphite is to weld seam transition C, controls the suitable C content of weld seam to form carbide it is ensured that the hardness of weld seam.
The effect of vanadium iron is alloying, forms carbide, nitride, crystal grain thinning.
The effect of molybdenum-iron is alloying, crystal grain thinning, solution strengthening, forms carbide, improves the high temperatures of deposited metal
Energy and anti-wear performance.
The effect of tungsten powder is alloying, to weld seam transition W, improves high temperature hardness and the wear resistance at elevated temperature of weld metal.
The effect of nikel powder is can to improve stabilization of austenite, slows down transformation of austenite to martensite, increases remaining difficult to understand
Family name's scale of construction, improves plasticity, the toughness of deposited metal, and can reduce martensite start temperature Ms point, can reduce heap
The residual stress of weldering metal.
The effect of nano silicon nitride chromium powder is to weld seam transition N, forms nitride with nitride forming element Ti, V, Cr etc.,
Crystal grain thinning, improves high temperature hardness and the structure stability of weld metal；To weld metal transition Cr.Nanometer powder activity is big,
Metallurgical reaction is abundant.
The effect of yittrium oxide is to reduce Welding seam inclusion content, makes inclusion balling, purifies weld metal, improves weld seam gold
The anti-fatigue performance belonging to；Reduce the surface tension of molten drop, promote the droplet transfer, reduce and splash.
The effect of potassium feldspar is to stablize electric arc, reduces and splashes, improves processing performance, and face of weld can be made to produce a thin layer
Slag.
The effect of prodan is to stablize electric arc, reduces and splashes, and reduces viscosity coefficient of dross, improves processing performance.
The preparation method of hot-work die built-up welding metal powder core solder wire of the present invention comprises the following steps：
(1) join powder and weigh medicated powder by the proportioning of medicated powder formula, first less for proportion graphite, potassium feldspar, prodan are pressed
Formula proportion mixes after weighing, and mixes powder 8-10 minute with existing mixed powder machine, obtains non-alloyed mixed powder；Then by electrolytic manganese,
The deoxidations such as 45# ferrosilicon, ferrotianium, crome metal, high carbon ferro-chrome, vanadium iron, molybdenum-iron, tungsten powder, nikel powder, nano silicon nitride chromium powder, oxidation yttrium powder
Alloying constituent is added in non-alloyed mixed powder as after formula proportion weighing, is further continued for mixed powder 8-10 minute, obtains medicated powder.
Wherein：The proportioning of described medicated powder is as follows in terms of mass parts：Electrolytic manganese 4-8,45# ferrosilicon 2-6, ferrotianium 1-4, crome metal
20-35, high carbon ferro-chrome 20-30, graphite 0-5, vanadium iron 2-6, molybdenum-iron 12-18, tungsten powder 2-4, nikel powder 4-8, nano silicon nitride chromium powder 1-
2, aoxidize yttrium powder 2-6, potassium feldspar 1-2, prodan 1-4.The granularity of nano silicon nitride chromium powder is more than 99% receives less than 100
Rice, the granularity of other powder is 75 microns～180 microns (i.e. granularity is -80 mesh～+200 mesh)；
(2) after cleaning 14～16 mm wides, 0.3～0.5 millimeters thick mild steel steel band with ultrasonic cleaning apparatus, with now
Some flux-cored wire production equipments, above-mentioned steel band are rolled into U-shaped, then the medicated powder made to addition step (1) in U-shaped grain, fill out
Filling rate (ratio of medicated powder quality and metal powder core solder wire quality) is 30～55%；
(3) U-lag is healed up, so that medicated powder is wrapped up wherein, the position that heals up is using the overlap joint connected mode (width of overlap
For 1-2mm, ensured by the format roll of existing flux-cored wire production equipment)；Touched by wire drawing, by road drawing, tube reducing, finally make it
Diameter reaches 2.4mm～4.0mm.
(4) the metal powder core solder wire layer of step (3) gained is coiled into disk, obtains final product hot-work die built-up welding metal powder core solder wire
Finished product.
Wherein：The preferred SPCC steel band of the described mild steel steel band of above-mentioned steps (2).
For the metal powder core solder wire of the present invention, when the gas flow that MAG welds gas is less than 18L/min, shielding gas
The deflection of body is not enough, and weld seam easily produces the defects such as pore；When gas flow is more than 23L/min, not only waste gas, and oxygen
The property changed strengthens, and face of weld can form one layer of dimmed oxide skin, so that weldquality is declined, and is possible to produce turbulent flow simultaneously
Reduce protected effect.Therefore, in the present invention, preferred gas flow is 18L/min-23L/min.
Arc voltage and welding current are the main technologic parameters that MAG welds, and arc voltage is crucial ginseng during short circuiting transfer
Number, arc voltage is matched with welding current, it is possible to obtain little, the good stabilized welding process of appearance of weld of splashing.The present invention
In preferably welding current 300A-450A；Voltage 28V-42V.
Because short circuiting transfer is all using thin welding wire, so produced resistance heat is to welding effect shadow in electrode extension
Sound is very big.Extension elongation increases, and the resistance heat on welding wire increases, and wire melting is accelerated, and productivity ratio improves.But with regard to the present invention
Speech, when extension elongation is more than 28mm, welding wire is susceptible to the overheated section that forms and fuses, and splashes serious, welding process is unstable.Simultaneously
After stretching out increase, the distance between nozzle and weldment also increases, and leads to gas shield effect to be deteriorated.But extension elongation is less than 14mm
When, the distance between nozzle and weldment is too short, the easy plug nozzle of splashing metal.Therefore, in the present invention, preferred welding wire stretches out length
Spend for 14mm-28mm.
Above-mentioned hot-work die built-up welding metal powder core solder wire adopts argon-rich gas shielded MAG weldering, welding current 300A-
450A；Voltage 28V-42V；Gas flow 18L/min-23L/min；Electrode extension 14mm-28mm.The welding procedure of welding wire
Performance is good, and arc stability, the little, crack resistance of splashing are good.The hardness of deposited metal is HRC40-55.
The application of the metal powder core solder wire of the present invention is not limited to gas shielded arc welding it can also be used to submerged-arc welding, electroslag welding etc..
The remarkable result that the present invention has is：
(1) this patent metal powder core solder wire has good processing performance, is suitable to automatic welding, and welding production efficiency high can
Manufacture for large-scale hot-work die and reparation.
(2) composition of deposited metal can be by changing the composition adjustment of metal powder core solder wire medicated powder, it is possible to produce is
Row product is used for different hot die steels, applied range.
(3) this patent metal powder core solder wire optimizes deposited metal chrome content, makes deposited metal have good high temperature and resists
Oxidation susceptibility, significantly improves the service life of hot-work die.
(4) this patent metal powder core solder wire passes through to add nano silicon nitride chromium powder and nitride forming element in medicated powder, leads to
Cross reaction fabricated in situ nitride, as gap phase, nitride has the advantages that size is tiny, high-temperature stable, significantly improve heap
The high temperature hardness of weldering metal and high-temperature stability.
(5) this patent passes through preferred (such as the selecting simple metal, use ferroalloy less) of steel band and medicated powder raw material and adds dilute
Soil, reduces deposited metal inclusion content, makes inclusion balling, crystal grain thinning, improve the toughness of deposited metal, plasticity and
Anti-fatigue performance.
Specific embodiment
Embodiment 1：
(1) join powder and weigh medicated powder by the proportioning of medicated powder formula, first less for proportion potassium feldspar, prodan are pressed recipe ratio
Example mixes after weighing, and mixes powder 8 minutes with existing mixed powder machine, obtains non-alloyed mixed powder；Then by electrolytic manganese, 45# ferrosilicon, titanium
Ferrum, crome metal, high carbon ferro-chrome, vanadium iron, molybdenum-iron, tungsten powder, nikel powder, nano silicon nitride chromium powder, the oxidation deoxidizing alloy such as yttrium powder are by joining
Square ratio is added in non-alloyed mixed powder after weighing, and is further continued for mixed powder 10 minutes, obtains medicated powder.
Wherein：The proportioning of described medicated powder is as follows in terms of mass parts：Electrolytic manganese 4,45# ferrosilicon 3, ferrotianium 2, crome metal 30 is high
Carbon ferrochrome 20, vanadium iron 2, molybdenum-iron 12, tungsten powder 2, nikel powder 4, nano silicon nitride chromium powder 1, aoxidize yttrium powder 2, potassium feldspar 2, prodan 2.
The granularity of nano silicon nitride chromium powder is more than 99% less than 100 nanometers, the granularity of other powder be 75 microns～180 microns (i.e.
Granularity is -80 mesh～+200 mesh)；
(2) after cleaning 14mm width, 0.3mm thickness SPCC steel band with ultrasonic cleaning apparatus, with the life of existing flux-cored wire
Product equipment, above-mentioned steel band is rolled into U-shaped, then adds the medicated powder that step (1) makes in U-shaped grain, filling rate (medicated powder quality with
The ratio of metal powder core solder wire quality) it is 30%；
(3) U-lag is healed up, so that medicated powder is wrapped up wherein, the position that heals up is using overlap joint connected mode；Touched by wire drawing, by
Road drawing, tube reducing, finally make its diameter reach 2.4mm.
(4) the metal powder core solder wire layer of step (3) gained is coiled into disk, obtains final product hot-work die built-up welding metal powder core solder wire
Finished product.
Above-mentioned hot-work die built-up welding adopts argon-rich gas Ar+1%CO with metal powder core solder wire2The consumable electrode gas of protection is protected
Shield weldering, welding current 290A-310A；Voltage 28V-31V；Gas flow 18L/min；Electrode extension 14mm.The weldering of welding wire
Connect processing performance good, arc stability, the little, crack resistance of splashing are good.The hardness of deposited metal is HRC40.
Embodiment 2：
(1) join powder and weigh medicated powder by the proportioning of medicated powder formula, first less for proportion graphite, potassium feldspar, prodan are pressed
Formula proportion mixes after weighing, and mixes powder 10 minutes with existing mixed powder machine, obtains non-alloyed mixed powder；Then by electrolytic manganese, 45#
The deoxygenated alloys such as ferrosilicon, ferrotianium, crome metal, high carbon ferro-chrome, vanadium iron, molybdenum-iron, tungsten powder, nikel powder, nano silicon nitride chromium powder, oxidation yttrium powder
Agent is added in non-alloyed mixed powder as after formula proportion weighing, is further continued for mixed powder 8 minutes, obtains medicated powder.
Wherein：The proportioning of described medicated powder is as follows in terms of mass parts：Electrolytic manganese 8,45# ferrosilicon 6, ferrotianium 4, crome metal 35 is high
Carbon ferrochrome 30, graphite 3, vanadium iron 6, molybdenum-iron 18, tungsten powder 4, nikel powder 5, nano silicon nitride chromium powder 2, aoxidize yttrium powder 6, potassium feldspar 1, fluorine silicon
Sour sodium 4.The granularity of nano silicon nitride chromium powder is more than 99% less than 100 nanometers, and the granularity of other powder is 75 microns～180 micro-
Rice (i.e. granularity is -80 mesh～+200 mesh)；
(2) after cleaning 16mm width, 0.35mm thickness SPCC steel band with ultrasonic cleaning apparatus, with the life of existing flux-cored wire
Product equipment, above-mentioned steel band is rolled into U-shaped, then adds the medicated powder that step (1) makes in U-shaped grain, filling rate (medicated powder quality with
The ratio of metal powder core solder wire quality) it is 55%；
(3) U-lag is healed up, so that medicated powder is wrapped up wherein, the position that heals up is using overlap joint connected mode；Touched by wire drawing, by
Road drawing, tube reducing, finally make its diameter reach 4.0mm.
(4) the metal powder core solder wire layer of step (3) gained is coiled into disk, obtains final product hot-work die built-up welding metal powder core solder wire
Finished product.
Above-mentioned hot-work die built-up welding metal powder core solder wire adopts submerged arc bead welding, from solder flux 260, welding current
420A-450A；Voltage 40V-44V.The welding technological properties of welding wire is good, and arc stability, appearance of weld are attractive in appearance, crack resistance is good.Heap
The hardness of weldering metal is HRC55.
Embodiment 3：
(1) join powder and weigh medicated powder by the proportioning of medicated powder formula, first less for proportion graphite, potassium feldspar, prodan are pressed
Formula proportion mixes after weighing, and mixes powder 9 minutes with existing mixed powder machine, obtains non-alloyed mixed powder；Then by electrolytic manganese, 45#
The deoxygenated alloys such as ferrosilicon, ferrotianium, crome metal, high carbon ferro-chrome, vanadium iron, molybdenum-iron, tungsten powder, nikel powder, nano silicon nitride chromium powder, oxidation yttrium powder
Agent is added in non-alloyed mixed powder as after formula proportion weighing, is further continued for mixed powder 9 minutes, obtains medicated powder.
Wherein：The proportioning of described medicated powder is as follows in terms of mass parts：Electrolytic manganese 6,45# ferrosilicon 4, ferrotianium 3, crome metal 30 is high
Carbon ferrochrome 25, graphite 3, vanadium iron 4, molybdenum-iron 15, tungsten powder 3, nikel powder 6, nano silicon nitride chromium powder 1, aoxidize yttrium powder 4, potassium feldspar 2, fluorine silicon
Sour sodium 1.The granularity of nano silicon nitride chromium powder is more than 99% less than 100 nanometers, and the granularity of other powder is 75 microns～180 micro-
Rice (i.e. granularity is -80 mesh～+200 mesh)；
(2) after cleaning 16mm width, 0.5mm thickness SPCC steel band with ultrasonic cleaning apparatus, with the life of existing flux-cored wire
Product equipment, above-mentioned steel band is rolled into U-shaped, then adds the medicated powder that step (1) makes in U-shaped grain, filling rate (medicated powder quality with
The ratio of metal powder core solder wire quality) it is 40%；
(3) U-lag is healed up, so that medicated powder is wrapped up wherein, the position that heals up is using overlap joint connected mode；Touched by wire drawing, by
Road drawing, tube reducing, finally make its diameter reach 3.2mm.
(4) the metal powder core solder wire layer of step (3) gained is coiled into disk, obtains final product hot-work die built-up welding metal powder core solder wire
Finished product.
Above-mentioned hot-work die built-up welding metal powder core solder wire adopts submerged arc bead welding, from solder flux 260, welding current
390A-410A, voltage 38V-40V.The welding technological properties of welding wire is good, and arc stability, appearance of weld are attractive in appearance, crack resistance is good.Heap
The hardness of weldering metal is HRC48.
Embodiment 4：
(1) join powder and weigh medicated powder by the proportioning of medicated powder formula, first less for proportion graphite, potassium feldspar, prodan are pressed
Formula proportion mixes after weighing, and mixes powder 8 minutes with existing mixed powder machine, obtains non-alloyed mixed powder；Then by electrolytic manganese, 45#
The deoxygenated alloys such as ferrosilicon, ferrotianium, crome metal, high carbon ferro-chrome, vanadium iron, molybdenum-iron, tungsten powder, nikel powder, nano silicon nitride chromium powder, oxidation yttrium powder
Agent is added in non-alloyed mixed powder as after formula proportion weighing, is further continued for mixed powder 8 minutes, obtains medicated powder.
Wherein：The proportioning of described medicated powder is as follows in terms of mass parts：Electrolytic manganese 4,45# ferrosilicon 6, ferrotianium 4, crome metal 35 is high
Carbon ferrochrome 30, graphite 5, vanadium iron 6, molybdenum-iron 12, tungsten powder 4, nikel powder 8, nano silicon nitride chromium powder 2, aoxidize yttrium powder 6, potassium feldspar 2, fluorine silicon
Sour sodium 4.The granularity of nano silicon nitride chromium powder is more than 99% less than 100 nanometers, and the granularity of other powder is 75 microns～180 micro-
Rice (i.e. granularity is -80 mesh～+200 mesh)；
(2) after cleaning 16mm width, 0.3mm thickness SPCC steel band with ultrasonic cleaning apparatus, with the life of existing flux-cored wire
Product equipment, above-mentioned steel band is rolled into U-shaped, then adds the medicated powder that step (1) makes in U-shaped grain, filling rate (medicated powder quality with
The ratio of metal powder core solder wire quality) it is 45%；
(3) U-lag is healed up, so that medicated powder is wrapped up wherein, the position that heals up is using overlap joint connected mode；Touched by wire drawing, by
Road drawing, tube reducing, finally make its diameter reach 3.2mm.
(4) the metal powder core solder wire layer of step (3) gained is coiled into disk, obtains final product hot-work die built-up welding metal powder core solder wire
Finished product.
Above-mentioned hot-work die built-up welding adopts argon-rich gas Ar+1.5%CO with metal powder core solder wire2The consumable electrode gas of protection
Protection weldering, welding current 350A-380A；Voltage 35V-38V；Gas flow 20L/min；Electrode extension 20mm.Welding wire
Welding technological properties is good, and arc stability, the little, crack resistance of splashing are good.The hardness of deposited metal is HRC50.
Comparative example 1
This comparative example is with the difference of embodiment 1, does not contain yittrium oxide in composition of raw materials, tired to the heat of deposited metal
Labor is tested, and specimen size is 50 × 20 × 1.5 (mm), in the center vertical thickness direction of 20mm, opens 60 ° of V-types
Breach, carries out 700 DEG C -20 DEG C of circulating-heating, cooling, with the cycle-index reflection fatigue behaviour of 0.5mm crackle.Do not contain
The cycle-index of the comparative example 1 of yttrium oxide powder is 21 times, and the cycle-index of the embodiment 1 containing yittrium oxide 2 parts (quality) is 43
Secondary.By with the comparing of embodiment 1, show that yittrium oxide of the present invention can effectively lift the anti-fatigue performance of deposited metal.
Comparative example 2
This comparative example is with the difference of embodiment 1, is added without nano silicon nitride chromium powder in composition of raw materials, to toughness and
The carrying out of cracking resistance is tested, and is not added with the comparative example 2 of nano silicon nitride chromium powder, the test value of U-shaped notch impact toughness is 1.06J/
cm2, in the 5CrNiMo mould steel surface overlaying for 80mm for the thickness, preheat 250 DEG C and just can occur without crackle；Embodiment 1 U-shaped
The test value of notch impact toughness is 1.21J/cm2, in the 5CrNiMo mould steel surface overlaying for 80mm for the thickness, preheat 50 DEG C
Crackle can be occurred without.Show that the nano silicon nitride chromium powder in medicated core of the present invention can effectively improve toughness and the cracking resistance of deposited metal
Performance.
Comparative example 3
This comparative example is with the difference of embodiment 1, adopts granularity to be 75 microns～180 microns in composition of raw materials
The nitridation chromium powder of (i.e. granularity is -80 mesh～+200 mesh), the hardness of 500 DEG C of actual measurement is HRC36, the maxima and minima of hardness
Difference HRC6；500 DEG C of hardness of embodiment 1 are HRC41, the maxima and minima difference HRC4 of hardness.Nanometer chrome nitride makes
Keep higher hardness under deposited metal high temperature, and the hardness of deposited metal is more uniform.Micron-sized chromium nitride is larger due to granule,
Activity is less, because welding pool rate of cooling is fast under existing addition, leads to metallurgical reaction insufficient it is impossible to effectively carry
The high temperature hardness of high deposited metal and structure stability.
Although the above-mentioned specific embodiment to the present invention is described, not the limit to the scope of the present invention
System, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art do not need to pay
Go out the various modifications that creative work can make or deformation still within protection scope of the present invention.
Claims (10)
1. a kind of metal powder core solder wire being exclusively used in hot-work die reparation is it is characterised in that include welding wire tube wall and bag in the inner
Medicated powder；Described medicated powder is made up of the raw material of following mass parts：Electrolytic manganese 4-8,45# ferrosilicon 2-6, ferrotianium 1-4, crome metal 20-
35, high carbon ferro-chrome 20-30, graphite 0-5, vanadium iron 2-6, molybdenum-iron 12-18, tungsten powder 2-4, nikel powder 4-8, nano silicon nitride chromium powder 1-2, oxygen
Change yttrium powder 2-6, potassium feldspar 1-2, prodan 1-4.
2. metal powder core solder wire as claimed in claim 1 it is characterised in that described medicated powder by following mass parts raw material group
Become：Electrolytic manganese 6-8,45# ferrosilicon 3-6, ferrotianium 2-4, crome metal 25-35, high carbon ferro-chrome 24-30, graphite 2-5, vanadium iron 3-6, molybdenum
Ferrum 14-18, tungsten powder 3-4, nikel powder 5-8, nano silicon nitride chromium powder 1.2-2, aoxidize yttrium powder 3-6, potassium feldspar 1.2-2, prodan 2-
4.
3. metal powder core solder wire as claimed in claim 1 or 2 it is characterised in that described medicated powder by following mass parts raw material
Composition：Electrolytic manganese 6-7,45# ferrosilicon 3-5, ferrotianium 2-3, crome metal 25-30, high carbon ferro-chrome 24-28, graphite 2-3, vanadium iron 3-4,
Molybdenum-iron 14-16, tungsten powder 3-3.5, nikel powder 5-6, nano silicon nitride chromium powder 1.2-1.8, aoxidize yttrium powder 3-5, potassium feldspar 1.2-1.8, fluorine
Sodium silicate 2-3.
4. metal powder core solder wire as claimed in claim 1 or 2 it is characterised in that the composition of described electrolytic manganese by quality ratio
Mn content is not less than 99.5%；The composition of 45# ferrosilicon is 40.0%～47.0%Si, 0.1%C by quality ratio, balance of Fe
Do not affect the impurity of performance；The composition of ferrotianium is 23%～35%Ti, 8.5%Al, 5%Si, 2.5%Mn by quality ratio,
Balance of Fe and the impurity not affecting performance；Cr content is not less than 98% to the composition of crome metal by quality ratio；High carbon ferro-chrome
Cr is not more than 3%, S not less than 60%, C for 6%～10%, Si and is less than less than 0.04%, P composition by quality ratio
0.04%, balance of Fe and the impurity not affecting performance；The composition of vanadium iron is 50%V, 0.2%C, 2%Si by quality ratio,
0.8%Al, balance of Fe and the impurity not affecting performance；The composition of molybdenum-iron is 50%Mo, 3%Si by quality ratio, balance of
Fe and the impurity not affecting performance；W content is not less than 98% to the composition of tungsten powder by quality ratio；The composition of nikel powder is by quality ratio
Ni content is not less than 98%.
5. metal powder core solder wire as claimed in claim 1 or 2 is it is characterised in that the granularity of described nano silicon nitride chromium powder is less than
100 nanometers；Described electrolytic manganese, 45# ferrosilicon, ferrotianium, crome metal, high carbon ferro-chrome, vanadium iron, molybdenum-iron, tungsten powder, nikel powder, oxidation yttrium powder,
The granularity of potassium feldspar and prodan is 75 microns～180 microns.
6. metal powder core solder wire as claimed in claim 1 is it is characterised in that described welding wire tube wall adopts SPCC or H08A low-carbon (LC)
Prepared by steel steel band.
7. metal powder core solder wire as claimed in claim 1 it is characterised in that described welding wire tube wall adopt wall thickness be 0.3～
0.5mm, width is the SPCC steel band preparation of 14～16mm；Described SPCC steel band chemical composition is by percentage to the quality：C is not more than
0.12%th, Si be not more than 0.05%, Mn be not more than 0.5%, S be not more than 0.035%, P be not more than 0.035%, balance of Fe and
Do not affect the impurity of performance.
8. metal powder core solder wire as claimed in claim 1 is it is characterised in that the filling rate of described metal powder core solder wire is 30%
～55%.
9. the argon-rich gas shielded gas metal-arc welding side of connecing of the arbitrary described metal powder core solder wire of claim 1-8
Method is it is characterised in that technological parameter is as follows：Welding current 300A-450A；Voltage 28V-42V；Gas flow 18L/min-23L/
min；Electrode extension 14mm-28mm.
10. the arbitrary described metal powder core solder wire of claim 1-8 process hot die steel in application it is characterised in that
Cr, Ni, Mo is contained in described hot die steel.
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| CN201510607230.9A CN105081610B (en) | 2015-09-22 | 2015-09-22 | It is exclusively used in the metal powder core solder wire of hot-work die reparation |
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| CN201510607230.9A CN105081610B (en) | 2015-09-22 | 2015-09-22 | It is exclusively used in the metal powder core solder wire of hot-work die reparation |
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| CN110039219A (en) * | 2019-05-20 | 2019-07-23 | 丹阳市华龙特钢有限公司 | A kind of high-wearing feature welding material and preparation method thereof |
| CN110181197B (en) * | 2019-06-17 | 2021-03-16 | 武汉科技大学 | High-nitrogen metal powder-cored flux-cored wire suitable for welding high-nitrogen armored steel |
| CN111618474B (en) * | 2020-06-01 | 2021-11-23 | 鞍钢附企三炼钢修造总厂 | Impact-resistant and wear-resistant self-protection flux-cored wire |
| CN111761252B (en) * | 2020-06-22 | 2022-04-15 | 中国船舶重工集团公司第七二五研究所 | Seamless flux-cored wire with thin-diameter metal powder core |
| CN113210930B (en) * | 2021-05-21 | 2022-07-26 | 泰安市瑞朗科技有限公司 | Flux-cored wire for hot forging die repair and using method thereof |
| CN114589429B (en) * | 2022-03-31 | 2022-08-30 | 广东省科学院中乌焊接研究所 | Super duplex stainless steel flux-cored wire for impeller additive repair and preparation method and application thereof |
| CN116100194A (en) * | 2023-03-15 | 2023-05-12 | 江苏大西洋焊接材料有限责任公司 | Alkaline flux-cored wire and preparation method and application thereof |
| CN116352306B (en) * | 2023-03-31 | 2024-03-15 | 江苏九洲新材料科技有限公司 | High-toughness nickel-based alloy flux-cored wire and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1181940A (en) * | 1968-09-11 | 1970-02-18 | Inst Elektroswarki Patona | Welding Electrode for Hard Surfacing of Steel Parts |
| SU526475A1 (en) * | 1975-01-17 | 1976-08-30 | Всесоюзный научно-исследовательский и проектно-технологический институт угольного машиностроения | Electrode coating |
| CN101497152B (en) * | 2009-02-26 | 2011-04-27 | 山东大学 | Large-diameter flux-cored wire for revolving body or wear-resistant composite board overlaying welding |
| CN101920413B (en) * | 2010-05-16 | 2013-07-17 | 十堰金科化工有限公司 | Surfacing and repairing flux-cored wire of hot forging die |
| CN102029482B (en) * | 2010-11-19 | 2012-10-03 | 天津市永昌焊丝有限公司 | Gas-shielded overlaying flux cored soldering wire for repairing hot-forging mould |
| CN103008924B (en) * | 2012-12-06 | 2015-01-14 | 北京工业大学 | Flux-cored wire for overlay welding of forging die and application thereof |
| CN104588915B (en) * | 2014-12-09 | 2016-08-24 | 天津大桥金属焊丝有限公司 | A kind of hot forged mould Gas Shielded welding flux-cored wire |
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