I-ASTM SAE8620 20CrNiMo Ingxubevange yombhobho wentsimbi engenamthungo

I-ASTM SAE8620 20CrNiMo ingxubevange yombhobho wentsimbi ongenamthungo oFakelweyo
  • I-ASTM SAE8620 20CrNiMo Ingxubevange yombhobho wentsimbi engenamthungo
  • I-ASTM SAE8620 20CrNiMo Ingxubevange yombhobho wentsimbi engenamthungo
  • I-ASTM SAE8620 20CrNiMo Ingxubevange yombhobho wentsimbi engenamthungo
  • I-ASTM SAE8620 20CrNiMo Ingxubevange yombhobho wentsimbi engenamthungo
  • I-ASTM SAE8620 20CrNiMo Ingxubevange yombhobho wentsimbi engenamthungo

Inkcazelo emfutshane:

I-20CrNiMo yintsimbi yolwakhiwo olukumgangatho ophezulu kunye neempawu ezibalaseleyo zoomatshini, ukuxhathisa ukubola kunye nokumelana nokunxiba.Isetyenziswa kakhulu koomatshini, ubunjineli, ulwakhiwo kunye nokhuseleko lokusingqongileyo.Amandla ayo aphezulu, ukuqina okuhle kunye ne-ductility kwenza ukuba kugcinwe ubomi obude benkonzo kwiindawo ezinzima kunye nokumelana nemithwalo ephezulu, ukubonelela ngenkxaso eqinile ekuphuhliseni ishishini lanamhlanje kunye nobunjineli.


Iinkcukacha zeMveliso

Iithegi zeMveliso

Umboniso weMveliso

(1)
(2)
(5)

Ukuqulunqwa kwemichiza

C

Si

Mn

S

P

Cr

Ni

Mo

Cu

0.17~0,23

0.17~0,37

0.60~0,95

≤0.035

≤0.035

0.40~0,70

0.25~0,75

0.20~0.30

≤0.30

Iipropati zoomatshini

Tensile strengthσb (MPa)

Unikeze Amandlaσ (MPa)

Ukwandisaδ5 (%)

Amandla empembelelo  Akv (J)

Ukucutheka kwecandelo ψ (%)

Ixabiso lokuqina kwempembelelo αkv (J/cm2)

UkuqinaHB

≥980(100)

≥785(80)

≥9

≥47

≥40

≥59(6)

≤197

20CrNiMo Ingxubevange yombhobho wentsimbi engenamthungo

I-20CrNiMo ekuqaleni yayiyinombolo yensimbi 8620 kwi-American AISI kunye nemigangatho ye-SAE.Ukusebenza kobunzima kufana nentsimbi ye-20CrNi.Nangona umxholo we-Ni kwintsimbi isiqingatha sentsimbi ye-20CrNi, ngenxa yokongezwa kwexabiso elincinci le-Mo element, inxalenye ephezulu ye-austenite isothermal ijika yenguqu ihamba ngasekunene;kwaye ngenxa yokonyuka okufanelekileyo kumxholo we-Mn, ukuqina kwale ntsimbi kusekuhle kakhulu, kwaye amandla Ikwaphezulu kunentsimbi ye-20CrNi, kwaye inokubuyisela intsimbi ye-12CrNi3 ukuvelisa iinxalenye ze-carburized kunye ne-cyanide ezifuna ukusebenza okuphezulu okungundoqo.I-20CrNiMo inokumelana nobushushu obuthile ukongeza kwiipropati ezilungileyo ezibanzi kuba iqulethe i-molybdenum.

Indawo yosetyenziso

1. Kwishishini lokuvelisa, lihlala lisetyenziselwa ukwenza iinxalenye eziphantsi komthwalo ophezulu, uxinzelelo oluphezulu, kunye nokugqoka okuphezulu, njengeegiya, i-shafts, ii-bearings, njl. ubomi benkonzo ixesha elide kwiindawo zokusebenza ezinzima.Ukongeza, ikwanazo ukumelana nokudinwa okugqwesileyo kunye nokumelana nokugqwala, okunokuthi kuxhathise ngokufanelekileyo ukukhukuliseka kwendalo yangaphandle kunye nokuqinisekisa ukusebenza okuzinzileyo kwezixhobo.

2. Kwintsimi yokwakha, le ntsimbi isetyenziswa ngokubanzi ekwakhiweni kwezakhiwo ezinkulu ezifana namabhuloho kunye nezakhiwo eziphakamileyo ngenxa yamandla ayo aphezulu kunye ne-ductility enhle.Kwezi zakhiwo, ziyakwazi ukumelana noxinzelelo olukhulu kunye noxinzelelo, ziqinisekisa ukhuseleko kunye nokuzinza kwesakhiwo.

3. Ukongezelela, ngokuphuculwa kokuqwashisa ngokusingqongileyo, izicelo kwintsimi yokukhusela indalo ziba zibanzi ngakumbi.Ngokomzekelo, kwiimoto zamandla amatsha, zingasetyenziselwa ukuvelisa amacandelo abalulekileyo anjengeemoto kunye nezinciphisi, ezinegalelo ekuhambeni okuluhlaza.Ikwadlala indima ebalulekileyo kwizixhobo zokukhusela indalo ezifana nokucocwa kwamanzi amdaka kunye nokunyangwa kwegesi yenkunkuma, ukubonelela ngenkxaso eqinile yokuphucula umgangatho wokusingqongileyo.

Iinkalo zeSicelo

1. Amacandelo abalulekileyo olwakhiwo, afana nezixhobo zokumisa inqwelomoya, iitanki kunye nezixhobo zesithuthi esixhotyisiweyo.

2. Izibophelelo eziphezulu kunye nezixhumi.

3. Iigiya eziphezulu zomthwalo kunye neebheringi.

Ukucaciswa koNyango lobushushu

 

Ukucima i850ºC, ukubanda kweoli;Ubushushu 200ºC, ukupholisa umoya.

 

Ubume bokuhanjiswa

Ukuhanjiswa kunyango lobushushu (i-normalizing, annealing okanye iqondo lokushisa eliphezulu) okanye akukho meko yonyango lokushisa, imeko yokunikezelwa iya kuboniswa kwisivumelwano.

 

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