Nickel-based alloy Nickel201 cov khoom siv thiab cov txheej txheem vuam kev taw qhia
Nickel201 cov ntaub ntawv qhia
Nickel 201 alloy yog industrially ntshiab forged Ni nrog zoo txhua yam khoom, tshwj xeeb tshaj yog zoo heev plasticity thiab toughness; Cov khoom kub ua haujlwm zoo, qhov zoo tshaj plaws kub ua haujlwm kub yog 870 degree ~ 1 230 degree; zoo ductility, yooj yim rau kev ua haujlwm txias thiab daim ntawv, thiab nws tus cwj pwm zoo sib xws hauv cov hlau me me. Annealing tuaj yeem ua tau nyob rau hauv qhov kub ntau tshaj qhov kub ntawm recrystallization. Lub annealing kub yog 705 degree ~ 925 degree. Yog tias qhov kub thiab txias dhau lawm, cov khoom siv lead ua tuaj yeem loj hlob tuaj. Nickel 201 alloy yog resistant rau corrosion thiab feem ntau tuav ib tug ci xim hlau luster nyob rau hauv cov huab cua sab hauv tsev, corrodes maj mam nyob rau hauv sab nraum zoov atmospheres, thiab muaj tsawg heev corrosion nqi nyob rau hauv marine thiab nyob deb nroog. Thiab cov ntsiab lus C tsawg heev, thiab tsis muaj brittleness tshwm sim los ntawm C los yog graphite ntawm qhov kub thiab txias. Nws yog tsuas yog siv los ua cov khoom siv thiab cov khoom siv xws li txo cov roj halogen, cov tshuaj alkaline, cov ntsev uas tsis yog oxidizing, organic acids, thiab lwm yam. Nws qhov kev pabcuam kub yog qhov zoo dua qis dua 315 degree thaum siv.
Kev lag luam ntshiab nickel muaj kev tiv thaiv zoo heev hauv kev tshaj tawm, thiab nws cov kev tiv thaiv alkali corrosion yog thib ob tsuas yog nyiaj; nws muaj zog heev corrosion kuj rau acidic thiab alkaline organic tebchaw; nws muaj lub zog siab thiab plasticity, tshwj xeeb tshaj yog nyob rau qhov kub siab tshaj 800 degree, nws tseem tuaj yeem tswj tau zoo thermal stability thiab thermal zog; nws muaj kev ua tau zoo heev nyob rau hauv ob qho tib si txias thiab kub xeev, thiab nws yog ib tug hlau khoom siv nyob rau hauv ntau yam hnyav corrosive ib puag ncig. Nyob rau tib lub sijhawm, npib tsib xee muaj zog tiv thaiv corrosion, thiab tsis muaj zog acid lossis muaj zog alkali tuaj yeem ua rau muaj zog nickel. Yog li ntawd, npib tsib xee thiab npib tsib xee alloys tau siv dav hauv cov khoom siv hluav taws xob hauv hluav taws xob, kev tshawb nrhiav roj thiab kev txhim kho, kev ua haujlwm loj hauv dej-txias reactors thiab high-temperature nuclear fais fab nroj tsuag, aerospace, tub rog kev lag luam thiab lwm yam kev lag luam.
Nickel 201 tshuaj muaj pes tsawg leeg
Nickel201 laser vuam txheej txheem
(1) Raws li cov txheej txheem sib txawv ntawm cov txheej txheem laser vuam, kev nkag mus ua tiav tuaj yeem ua tiav, thiab vuam seam yog tsim tau zoo, cov qauv zoo ib yam, thiab qhov dav melting yog inversely proportional rau lub zog thiab ceev.
(2) Lub microhardness ntawm cov vuam yog qis dua li ntawm cov hlau hauv paus, thiab qhov microhardness ntawm thaj tsam kub-tshuaj yog siab dua li ntawm lub hauv paus hlau. Tus nqi microhardness ntawm lub vuam mus rau lub hauv paus hlau ua ntej nce thiab tom qab ntawd txo qis.
(3) Cov txiaj ntsig kev ntsuas tensile qhia tau hais tias lub zog tensile ntawm qhov sib koom ua ke yog qhov qis dua ntawm cov khoom siv hauv paus, thiab hloov tau yooj yim. Cov qauv tensile ntawm cov welded sib koom ua ke yog tag nrho cov tawg ntawm qhov sib cuam tshuam ntawm qhov vuam thiab qhov chaw kub-kho.
(4) Sim siv lub zog laser me me thiab qis vuam ceev rau vuam, uas tuaj yeem txo qhov kev nyiam ntawm cov nplej los ua ntxhib, txhim kho cov khoom siv ntawm cov vuam, thiab yog li txhim kho lub zog ntawm vuam.
Nickel 201 vuam txoj kev
Nickel 201 vuam txoj kev feem ntau suav nrog electrode arc vuam, phau ntawv tungsten arc vuam, roj hlau arc vuam thiab submerged arc vuam. Phau ntawv tungsten arc vuam tau dav siv nyob rau hauv vuam ntawm nickel-raws li alloys. Nws yog tshwj xeeb tshaj yog haum rau nyias daim hlau, me me cross-section, rov qab npog qhov twg cov pob qij txha tsis tuaj yeem rov qab welded, thiab cov khoom siv uas seem slag tsis pub tom qab vuam. Kev tuav tungsten argon arc vuam muaj kev tiv thaiv zoo thiab tuaj yeem cais cov huab cua nyob ib puag ncig, ua rau cov tshuaj tiv thaiv metallurgical hauv txoj haujlwm vuam yooj yim thiab yooj yim rau kev tswj, thiab muab cov kev mob zoo rau kom tau txais cov welds zoo dua. Lub arc yog ruaj khov heev, txawm nyob rau hauv me me tam sim no tej yam kev mob. Nws tseem tuaj yeem kub hnyiab tau ntawm qhov kub thiab txias (tsawg dua 10 A), thiab tshwj xeeb tshaj yog haum rau vuam ntawm nyias phaj cov ntaub ntawv.
Nickel201 tom qab-weld soj ntsuam thiab kho nto
(1) Tom qab cov welded sib koom yog txias rau chav tsev kub, xyuas kom tsis muaj qhov pores, slag inclusions, undercuts thiab lwm yam tsis xws luag nyob rau hauv weld nto.
(2) Siv lub kaum ntse ntse los tsoo Weld Chaw Txhawb Nqa kom yaug nrog cov thawj Weld nto thiab ua rau qhov hloov mus rau ntawm ntug Fusion du.
(3) Tsis muaj kab nrib pleb tau pom nyob rau hauv kev tshuaj xyuas xim ntawm thiab ib ncig ntawm qhov chaw vuam.
Nickel 201 vuam kev ua tau zoo
(1) Nickel 201 muaj qhov zoo weldability, sib npaug rau chromium-nickel austenitic stainless hlau. Lub koom haum qauv yog ib-theem austenite, nrog tsawg thermal conductivity thiab siab expansion coefficient. Lub vuam tshav kub-tshwj xeeb cheeb tsam muaj ib tug nyiam ntawm grain loj hlob. Lub plasticity thiab corrosion kuj ntawm weld thiab tshav kub-cuam tshuam cheeb tsam yuav raug txo, thiab weld hlau yog nquag ua cua sov. Cracks thiab pores.
(2) Txoj kev nyiam vuam rau Nickel 201 yog tungsten argon arc vuam. Lub arc ntawm tungsten argon arc vuam yog ruaj khov, nws yog ib qho yooj yim mus cuag ib leeg-sab vuam thiab ob-sided sib sau, lub weld yog zoo tsim, thiab tsis muaj spatter, yog li nws yog haum rau nyias phaj vuam. Cov khoom siv vuam yuav tsum yog npib tsib xee-raws li alloy vuam hlau uas muaj tib yam tshuaj lom neeg muaj pes tsawg leeg thiab txhua yam khoom raws li lub hauv paus hlau.
(3) Ua tib zoo ntxuav cov nickel 201 phaj thiab vuam hlau ua ntej vuam. Piv nrog carbon steel, qhov zawj lub kaum sab xis thiab sib dhos sib dhos yuav tsum tau nce ntxiv. Lub nraub qaum weld hlaws yuav tsum tau tiv thaiv los ntawm argon roj. Nyob rau tib lub sijhawm, vuam kab hluav taws xob yuav tsum tsis txhob siab dhau thiab qhov kub ntawm qhov sib txuas yuav tsum tsis txhob siab dhau. tshaj 100 degree.
