Isesengura ryimiterere nibigize imiti ya 20CrMnTi imiyoboro ikonje ikonje idafite icyuma

20CrMnTi ibyuma byitwa ibyuma byuma, kandi ibice byinshi bikoresha 20CrMnTi.

20CrMnTiumuyoboro w'icyumairashobora kugabanywamo ubwoko butatu: gushushanya-gukonje, gushyushye-noimbeho ikonje ikonje idafite icyuma, hamwe nibisabwa bitandukanye n'inzira zitandukanye.Nyamara, ibice bimwe bikoresha ibyuma bizunguruka kugirango bitange ibice utitaye ku gusimbuza imiyoboro yicyuma.Gusimbuza 20CrMnTi ikonje ikonje idafite umuyoboro wicyuma hamwe na 20CrMbTi ibyuma bizunguruka ntibizigama gusa ibikoresho bibisi namasaha yakazi, ahubwo binagabanya ibiciro kandi byongera ubushobozi bwisoko.20CrMnTi na 30CrMnSiA imiyoboro ikonje ikonje idafite ibyuma ni karubone ifite ibyuma byiza, ikora cyane, ikomeye kandi idashobora kwihanganira ubuso hamwe nimbaraga zikomeye nyuma yo gutwika no kuzimya, ubukonje bukabije bwubushyuhe bukabije, gusudira hagati, hamwe no gukora neza nyuma yo gukora ibisanzwe.20CrMnTiimiyoboro ikonje ikonjemubisanzwe ibyuma bike bya karubone bifite karubone ya 0.17% - 0.24%.Irakoreshwa cyane mumodoka kugirango ikore ibikoresho byohereza.Nicyuma giciriritse cyogosha karubone, ibyuma bya CrMnTi, hamwe no gukomera cyane.Mugihe cyo kwemeza gukomera, ifite imbaraga nubukomezi, cyane cyane ubushyuhe buke bwo hejuru.20CrMnTi hejuru ya carburize kandi ikomeye.Imashini nziza, ihindagurika rito mugutunganya bidasanzwe, hamwe no kurwanya umunaniro mwiza.Intego: kubikoresho, shitingi, ibice bya Piston, nibindi bikoreshwa mubice bitandukanye byimodoka nindege

20CrMnTi bisanzwe: GB / T 3077-1988

Ibiranga nurwego rwo gushyira mu bikorwa20CrMnTi imiyoboro ikonje ikonje idafite icyuma:

Ikoreshwa mugukora ibice byingenzi hamwe nigice kitarenze 30mm gifite umuvuduko mwinshi, umutwaro uremereye cyangwa uremereye, ingaruka no guterana amagambo, nka gare, impeta zi bikoresho, ibikoresho bya shitingi, nibindi.

Ibigize imiti ya 20CrMnTi imbeho ikonje idafite icyuma (ingingo):

Carbone C: 0.17 ～ 0.23

Silicon Si: 0.17 ～ 0.37

Manganese Mn: 0.80 ～ 1.10

Amazi ya sulferi S: ibyemewe bisigaye ≤ 0.035

Fosifore P: ibyemewe bisigaye ≤ 0.035

Chromium Cr: 1.00 ～ 1.3020CrMnTi imiyoboro ikonje ikonje idafite icyuma

Nickel Ni: ibyemewe bisigaye ≤ 0.030

Umuringa Cu: ibyemewe bisigaye ≤ 0.030

Titanium Ti: 0.04-0.10

Ibikoresho bya mashini ya 20CrMnTi imiyoboro ikonje ikonje idafite icyuma:

imbaraga zingana σ b (MPa) ： ≥1080 (110)

gutanga umusaruro σ s (MPa) ： ≥835 (85)

kurambura δ 5 (％) ： ≥10

Kugabanya agace ψ (％) ： ≥45

Ingaruka zingaruka Akv (J): ≥ 55

Ingaruka zo gukomera agaciro α kv (J / cm2) ： ≥69 (7)

Gukomera: ≤ 217HB

Ingano yicyitegererezo: urugero rwubusa ni 15mm

Ubushuhe bwo kuvura ubushyuhe hamwe nuburyo bwa metallografiya ya 20CrMnTi imiyoboro ikonje ikonje idafite icyuma:

Ibisobanuro byo kuvura ubushyuhe: kuzimya: 880 ℃ kunshuro yambere, 870 ℃ kunshuro ya kabiri, gukonjesha amavuta;Ubushyuhe 200 ℃, gukonjesha amazi no gukonjesha ikirere.

20crmnti umuyoboro wicyuma nicyuma giciriritse cyicyuma, gifite ubukana bwiza kubera kuvanga inshuro nyinshi Cr, Mn na Ti.Diameter ikomeye yo kuzimya amavuta ni 40mm;Nyuma yo gutwika no kuzimya, ifite imbaraga zo kwihanganira kwambara no gukomera cyane, cyane cyane ubukonje bukabije;Icyuma gifite uburyo bwiza bwa carburizing, uburyo bwo gukura kwintete ntoya, kuzimya bitaziguye no guhindura ibintu bito.20CrMnTi ibyuma birashobora gukoreshwa muburyo bwo gukora ibice biremereye bya karubasi ifite igice kiri munsi ya 30 and, kandi irashobora kwihanganira umuvuduko mwinshi, umutwaro uremereye cyangwa umutwaro uremereye, ingaruka no guterana amagambo, nk'ibikoresho, ibikoresho by'ibikoresho, impeta y'ibikoresho, impeta zambukiranya, gufunga inzara. , inyo, n'ibindi.

Ibigize imiti ya 20crmnti umuyoboro wibyuma birimo karubone C, silicon Si, manganese Mn, sulfure S, fosifore P na chromium Cr.20crmnti ibyuma byo gutunganya ibyuma: ibyuma bya karubone, kurangiza kuzunguruka, kutagira okiside ivura ubushyuhe bukabije (leta ya NBK), kugerageza kutangiza, urukuta rwimbere rwicyuma rwogejwe nibikoresho bidasanzwe kandi rwogejwe numuvuduko mwinshi, amavuta arwanya ingese kumuyoboro wicyuma ni bivurwa mukurinda ingese, kandi ibifuniko kumpande zombi bivurwa mukurinda ivumbi.20crmnti umuyoboro wibyuma biranga: inkuta zimbere ninyuma yumuyoboro wibyuma bifite ibisobanuro bihanitse kandi birangiye cyane, umuyoboro wicyuma ntugira urwego rwa oxyde nyuma yo kuvura ubushyuhe, urukuta rwimbere rufite isuku ryinshi, umuyoboro wibyuma ufite umuvuduko mwinshi, kunama gukonje ntabwo guhindura, no kwaguka no gusibanganya ntibifite ibice.

Shandong Haihui Steel Co., Ltd itanga umusaruro ubukonje buzengurutse neza neza imiyoboro idafite ibyumaya GB 10 #, GB20 #, GB35 #, GB45 #, 20Cr, 40Cr, 16Mn, 35CrMo, 20CrMoTi, Gcr15.