ASTM SAE8620 20CrNiMo Umuyoboro udafite ibyuma

Ibisobanuro bigufi:

20CrNiMo nicyuma cyiza cyane kivanze nicyuma cyububiko gifite ibikoresho byiza bya mashini, birwanya ruswa kandi birwanya kwambara.Ikoreshwa cyane mumashini, ubwubatsi, ubwubatsi no kurengera ibidukikije.Imbaraga zacyo nyinshi, gukomera no guhindagurika bituma ituma ubuzima bumara igihe kirekire mubidukikije kandi bikarwanya imitwaro myinshi, bitanga inkunga ikomeye mugutezimbere inganda nubuhanga bugezweho.


Ibicuruzwa birambuye

Ibicuruzwa

Kwerekana ibicuruzwa

(1)
(2)
(5)

Ibigize imiti

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

Ibikoresho bya mashini

Imbaragaσb (MPa)

Gutanga Imbaragaσs (MPa)

Kuramburaδ5 (%)

Ingaruka zingufu  Akv (J)

Kugabanuka kw'igice ψ (%)

Ingaruka zo gukomera agaciro αkv (J / cm2)

GukomeraHB

980 (100)

785 (80)

9

47

40

≥59(6)

197

20CrNiMo Alloy Ikidodo Cyuma Cyuma

20CrNiMo yabanje kuba ibyuma nimero 8620 mubipimo bya AISI byabanyamerika na SAE.Imikorere yo gukomera isa niy'icyuma cya 20CrNi.Nubwo Ni ibirimo mubyuma ari kimwe cya kabiri cyicyuma cya 20CrNi, bitewe no kongeramo umubare muto wa Mo element, igice cyo hejuru cya austenite isothermal ihinduka umurongo ujya iburyo;kandi kubera ubwiyongere bukwiye bwibirimo Mn, gukomera kwiki cyuma biracyari byiza cyane, nimbaraga Nayo irarenze ibyuma 20CrNi, kandi irashobora kandi gusimbuza ibyuma 12CrNi3 kugirango ikore ibice bya karubone nibice bya cyanide bisaba imikorere yibanze.20CrNiMo irashobora kwihanganira ubushyuhe runaka hiyongereyeho ibintu byiza byuzuye kuko irimo molybdenum.

Umwanya wo gusaba

1. Mu nganda zikora, akenshi zikoreshwa mugukora ibice biterwa numutwaro mwinshi, guhangayika cyane, no kwambara cyane, nka gare, shitingi, ibyuma, nibindi. Imbaraga zabo nyinshi hamwe nubukomezi bwiza bituma ibyo bice bikomeza igihe kirekire cyakazi mubuzima bubi bukora.Byongeye kandi, ifite kandi imbaraga nziza zo kurwanya umunaniro no kurwanya ruswa, ishobora kurwanya neza isuri y’ibidukikije kandi ikanakora neza ibikoresho.

2. Mu rwego rwubwubatsi, iki cyuma gikoreshwa cyane mukubaka inyubako nini nkikiraro ninyubako ndende kubera imbaraga nyinshi kandi zihindagurika.Muri izi nyubako, zirashobora guhangana n’umuvuduko mwinshi n’impagarara, bikarinda umutekano n’inyubako.

3. Byongeye kandi, hamwe no kunoza imyumvire y’ibidukikije, gusaba mu rwego rwo kurengera ibidukikije bigenda byiyongera.Kurugero, mumodoka nshya yingufu, irashobora gukoreshwa mugukora ibice byingenzi nka moteri na kugabanya, bigira uruhare mubyatsi.Ifite kandi uruhare runini mu bikoresho byo kurengera ibidukikije nko gutunganya imyanda no gutunganya imyanda, itanga inkunga ikomeye mu kuzamura ireme ry’ibidukikije.

Imirima

1. Ibikoresho byingenzi byubatswe, nkibikoresho byo kuguruka byindege, tank hamwe nibikoresho byimodoka.

2. Imbaraga zikomeye zifata kandi zihuza.

3. Ibikoresho biremereye cyane.

Ibisobanuro byo kuvura ubushyuhe

 

Kuzimya 850ºC, ubukonje bwamavuta;Ubushyuhe 200ºC, gukonjesha ikirere.

 

Imiterere yo Gutanga

Gutanga mu kuvura ubushyuhe (bisanzwe, annealing cyangwa ubushyuhe bwo hejuru) cyangwa nta buryo bwo kuvura ubushyuhe, imiterere yo kubyara igomba kugaragazwa mumasezerano.

 


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