20mnd5 yog qhov qis alloy siab- lub zog steel ntawm mn-}}}}}}}}}}}}} pa} Kuv yog cov khoom siv tshwj xeeb ntawm cov kob nuclearized. Vim lub luag haujlwm ntawm MN, NI, MO thiab lwm cov khoom hauv cov hlau, hom kev ua tau zoo, qhov kub thiab txias} duct} ductile hloov kub. Los ntawm kev tswj hwm ntawm kev tsim khoom lag luam thiab kev kho cua sov, nws yog qhov ua tau zoo dua qub {{{{{{}}} pick feem. Cov ntaub ntawv no yog siv rau cov plhaub thiab cov taub hau ntawm chav tsim hluav taws xob hauv cov nroj tsuag nuclear ntawm cov nroj tsuag hluav taws xob nuclear. Vim tias cov yam ntxwv tshwj xeeb ntawm cov nroj tsuag hluav taws xob nuclear, qhov xav tau rau kev nyab xeeb yog qhov ua tau tseem ceeb ntawm cov ntaub ntawv no yog cov nruj me nyuam.
Tshuaj lom neeg muaj pes tsawg leeg ntawm 20mnd5 nuclear fais fab hlau phaj:
C: 0.23; Si: 0.15-0.30; MN: 1.11-1.59; P: 0.008; S: 0.005; MO: 0.43-0.62; NI: 0.37-0.73; CU: 0.20; Cr: 0.25; V: 0.03.
Cov Cuab Yeej Siv Cov Neeg Kho Tshuab ntawm 20mnd5 Nuclear Lub Zog Hlau Steel Phaj:
Tensile lub zog ntawm 20mnd5 nuclear fais fab hlau phaj: 450
Paib lub zog ntawm 20mnd5 nuclear fais fab hlau phaj: 620-790
20mnd5 nuclear hwj chim steel phaj tuab txo thaj chaw: 35%
20Mnd5 Hlau Kev Ntsuas Xyuas Kev Ntsuas
Tensile, kev cuam tshuam, thiab khoov cov phiaj xwm kuaj cov hnoos qeev yuav raug coj los ntawm tib qho kev ntsuas dawb paug. Qhov kev ntsuas dawb yuav raug coj los ntawm 1/4 ntawm qhov dav ntawm cov hlau phaj. Thaum qhov ntev ntawm cov cua sov -} Kev kho steel phaj tsis pub tshaj 15 m, qhov kev ntsuas tsis muaj qab los ntawm ib qho kawg ntawm lub phaj; Thaum qhov ntev tshaj 15 m, ib qho kev sim ua dawb paug los ntawm txhua qhov kawg ntawm lub phaj, nrog txhua qhov kev sim ua kom muaj cov qauv tso tawm (1 tensile, 3 cuam tshuam, thiab 1 khoov). Shearing los yog nplaim taws txiav yuav tau siv los ua kom tau qhov tsis muaj qhov tsis muaj qhov ua haujlwm tsis txhob ua haujlwm
Lub axes ntawm lub tensile, kev cuam tshuam, thiab khoov cov hnoos qeev yuav tsum txiav mus rau cov kev taw qhia qaws ntawm cov hlau phaj; Cov ntsiab lus tsis sib xws ntawm Charpy (v - ItCH) cuam tshuam cov khoom siv yuav tsum sib txuas nrog cov nplaim hluav taws xob ntawm lub phaj steel.
Cov qauv piv txwv rau lub tensile thiab kev ntsuas cuam tshuam yuav tsum ua raws li cov kev cai GB / T 2975. Rau cov khoom cuam tshuam hlau nrog lub xaim hluav taws xob yuav tsum nyob ntawm 1/4 ntawm cov tuab. Rau khoov cov zis kuaj ntawm txhua qhov tuab, tsawg kawg yog ib lub npoo yuav tsum tau khaws cia, thiab cov npoo dov yuav yog qhov chaw sab nraud ntawm cov npoo ntawm khoov.
Nto zoo ntawm 20mnd5 steel phaj
Cov hlau phaj hlau tsis muaj qhov tsis xws luag xws li cov kab nrib pleb, npuas, nti, folds, lossis suav nrog. Yog tias muaj qhov tsis xws luag tshwm sim, lawv yuav raug tshem tawm, muab qhov tseeb ntawm cov hlau tuab, suav los ntawm qhov tsawg kawg nkaus ntawm cov phaj steel yog kom ntseeg tau. Thaj chaw uas tsis xws luag raug tshem tawm yuav du thiab dawb ntawm cov npoo ntse. Lub phaj steel yuav tsum pub dawb ntawm delamination.
Lwm yam tsis raug yog tso cai, muab lawv qhov tob tsis tshaj ib nrab ntawm qhov chaw poob qis, thiab cov tuab tuab ntawm qhov tsis tshua muaj txiaj ntsig ntawm cov phaj steel.
Ntau lawm thiab tej txheej txheem txaus ntws ntawm 20mnd5 steel phaj
Txheej Txheem Ntau Lawm: Thawj Coj Lf Refining → Kev Kho Mob → Cov Kev Kho Mob → Cov Khoom Siv Cua Sov → Tej Thiab Qauv → Kev Tshuaj Ntsuam Kub
Cutting process: After the performance indicators of the 20MnD5 steel plate meet the requirements in the factory inspection, cutting processing is carried out according to the cutting technology. It can be cut and processed according to drawings. Generally, when the steel plate thickness is ≤20 mm, CNC plasma cutting or CNC laser cutting is preferred. If the steel plate thickness is >30 hli, CNC nplaim taws txiav yog feem ntau raug xaiv los tswj kev txiav kev txiav txim siab thiab lub sijhawm.
Cov qhov ntev ntev ntawm 20mnd5 steel phaj (tuab * dav * ntev / unit: mm)
8 hli 50 hli*1600mm-2000mm* 6000-10000mm
50 hli-150 hli* 1600mm-2500mm * 6000-12000mm
150 hli-200mm* 2000mm-2500mm* 10000mm-12000mm
