20Cr u'amea paipa u'amea seamlesso se tasi o paipa u'amea fa'apipi'i fa'atasi ma le tele o mea e gaosia i lo'u atunu'u ma e tele lona fa'aoga.Saina GB uamea tulaga masani numera 20Cr;Iapani JIS numera uʻamea masani SCr22;Siamani DIN numera uʻamea masani 20Cr4;British BS tulaga uamea numera 590M17;Falani NF uamea tulaga masani numera 18C3;American AISI / SASTM numera uʻamea masani 5120;Fa'alapotopotoga Tulaga Fa'ava-o-malo ISO fa'ameamea No. 20Cr4.
Uiga
20Cr paipa uameae fai si lelei hardenability, feololo malosi ma faigata.Ole malosi ole suau'u tineia ile afa martensitic maaa ole Φ20-Φ23mm.A maeʻa le carburizing ma le faʻamaʻiina o le faʻamalosia o togafitiga, o le a maua le martensite faʻafefete pei o le nila lelei i luga o le faʻamaʻi ma le maaa o le 58-62HRC;o se fausaga martensite maualalo-carbon o le a maua i le ogatotonu ma le maaa o 35-40HRC.O le matrix o loʻo i ai le malosi maualuga ma le faʻamalosi, ma e mafai ona faʻafeiloaʻi manaʻoga faʻatinoga o le maualuga o le maaa, maualuga le malosi, maualuga le malosi ma le talafeagai o le faʻafefeteina o le malulu galuega.Normalizing e mafai ona faʻaleleia le spheroidization o le fausaga, faʻaleleia le tele o le proeutectoid ferrite, ma faʻaleleia le tipiina o le avanoa.
Fa'aoga
20Cr paipa u'amea lamolemolee tele lava ina faʻaaogaina e gaosia vaega carburized (suauu tineia) ma le maualuga maualuga manaʻoga malosi, laʻei luga, cross-vaega i lalo 30mm, poʻo foliga lavelave ma uta maualalo, e pei o: masini meafaigaluega gearbox gears, gear shafts, Cams, anufe, piston pine. , pipii matiuu, ma isi;mo vaega o loʻo i ai le faʻaleagaina o togafitiga vevela ma le maualuga o le ofuina o le ofuina, e tatau ona faia le tineia o luga ole maualuga pe a maeʻa le carburization, e pei o gears, shafts.20Cr paipa leai se meae mafai fo'i ona fa'aoga i le tulaga fa'a'ave'esea ma fa'afefeteina e gaosia ai vaega e galue i le saoasaoa maualuga ma fa'afetaia'ia avega fa'aletonu.E mafai foi ona faʻaaogaina e pei o le carbon martensitic quenching steel e faʻateleina ai le malosi o le gaosiga ma le malosi o le sila.
Taimi meli: Tes-19-2023