Kev tshuaj xyuas cov khoom thiab tshuaj muaj pes tsawg leeg ntawm 20CrMnTi txias-draw seamless steel yeeb nkab

20CrMnTi hlau yog hu ua iav hlau, thiab ntau qhov chaw siv 20CrMnTi.

20 CrMnTiseamless steel yeeb nkabtuaj yeem muab faib ua peb hom: txias-draw, kub-dov thiabtxias dov ci seamless steel yeeb nkab, nrog cov kev xav tau sib txawv thiab cov txheej txheem sib txawv.Txawm li cas los xij, qee chav siv cov hlau puag ncig los tsim cov khoom yam tsis xav txog kev hloov cov kav hlau.Hloov 20CrMnTi txias-draw seamless steel yeeb nkab nrog 20CrMbTi puag ncig steel tsis tsuas yog txuag cov khoom siv raw thiab cov sij hawm ua haujlwm, tab sis kuj txo cov nqi thiab ua kom muaj kev sib tw ua lag luam.20CrMnTi thiab 30CrMnSiA txias-drawn seamless steel kav yog carburized steels nrog kev ua tau zoo, siab hardenability, nyuaj thiab hnav-resistant nto thiab tawv core tom qab carburizing thiab quenching, siab kub tsis tshua muaj kev cuam tshuam toughness, nruab nrab weldability, thiab zoo machinability tom qab normalizing.20 CrMnTitxias-draw seamless steel yeeb nkabfeem ntau yog cov pa roj carbon tsawg nrog cov ntsiab lus carbon ntawm 0.17% - 0.24%.Nws yog dav siv nyob rau hauv tsheb los tsim cov kis tau tus mob.Nws yog nruab nrab hardenable carburized carbon steel, nruab nrab CrMnTi steel, nrog siab hardenability.Nyob rau hauv cov xwm txheej ntawm kev ua kom lub hardenability, nws muaj lub zog siab thiab toughness, tshwj xeeb tshaj yog kub tsis tshua muaj kev cuam tshuam toughness.20CrMnTi nto carburized thiab hardened hlau.Zoo machinability, me me deformation nyob rau hauv tshwj xeeb ua, thiab zoo qaug zog kuj.Lub hom phiaj: rau lub zog, ncej, Piston qhov chaw, thiab lwm yam yog siv rau ntau yam tshwj xeeb ntawm tsheb thiab dav hlau

20CrMnTi tus qauv: GB / T 3077-1988

Cov yam ntxwv thiab Scope ntawm kev siv ntawm20CrMnTi txias-draw seamless steel yeeb nkab:

Nws yog siv los tsim cov khoom tseem ceeb nrog ib feem tsawg dua 30 hli uas dais kev kub ceev, nruab nrab lossis hnyav, cuam tshuam thiab kev sib txhuam, xws li lub zog, iav rings, iav ncej crossheads, thiab lwm yam.

Tshuaj muaj pes tsawg leeg ntawm 20CrMnTi txias-draw seamless steel yeeb nkab (cov ntsiab lus):

Cov pa roj carbon C: 0.17 ~ 0.23

Silicon Si: 0.17 ~ 0.37

Manganese Mn: 0.80 ~ 1.10

Sulfur S: tso cai cov ntsiab lus seem ≤ 0.035

Phosphorus P: tso cai cov ntsiab lus seem ≤ 0.035

Chromium Cr: 1.00 ~ 1.3020CrMnTi txias-draw seamless steel yeeb nkab

Nickel Ni: tso cai cov ntsiab lus seem ≤ 0.030

Copper Cu: tso cai cov ntsiab lus seem ≤ 0.030

Titanium Ti: 0.04-0.10

Mechanical zog ntawm 20CrMnTi txias-draw seamless steel yeeb nkab:

Tensile zog σ b (MPa): ≥1080 (110)

yield zog σ s (MPa): ≥835 (85)

elongation δ 5 (％): ≥10

Txo thaj tsam ψ (％): ≥45

Impact zog Akv (J): ≥ 55

Kev cuam tshuam toughness tus nqi α kv (J / cm2): ≥69(7)

Hardness: ≤ 217HB

Qauv loj: qauv dawb paug loj yog 15mm

Kev kho cua sov specification thiab metallographic qauv ntawm 20CrMnTi txias-draw seamless steel yeeb nkab:

Kev kho cua sov specification: quenching: 880 ℃ thawj zaug, 870 ℃ thib ob, roj txias;Kub 200 ℃, dej txias thiab cua txias.

20crmnti steel yeeb nkab yog nruab nrab hardenability steel, uas muaj hardenability zoo vim muaj ntau yam alloying ntawm Cr, Mn thiab Ti.Qhov tseem ceeb txoj kab uas hla ntawm cov roj quenching yog hais txog 40mm;Tom qab carburizing thiab quenching, nws muaj siab hnav tsis kam thiab siab toughness, tshwj xeeb tshaj yog tsis tshua muaj kub cuam tshuam toughness;Cov hlau muaj cov txheej txheem carburizing zoo, kev loj hlob ntawm cov nplej me me, ncaj qha quenching thiab me me deformation.20CrMnTi steel tuaj yeem siv los tsim cov khoom hnyav carburized nrog ntu tsawg dua 30 ℃, thiab tuaj yeem tiv taus kev kub ceev, nruab nrab thauj khoom lossis hnyav, cuam tshuam thiab kev sib txhuam, xws li lub zog, iav shafts, iav rings, hla rings, claw clutches , kab, thiab lwm yam.

Cov tshuaj muaj pes tsawg leeg ntawm 20crmnti steel yeeb nkab suav nrog carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P thiab chromium Cr.20crmnti steel yeeb nkab cov txheej txheem: carbon steel, tiav dov, tsis-oxidation ci kev kho cua sov (NBK lub xeev), kev sim tsis zoo, steel yeeb nkab sab hauv phab ntsa yog txhuam nrog cov cuab yeej tshwj xeeb thiab ntxuav hauv qhov kub siab, tiv thaiv xeb ntawm cov yeeb nkab steel yog kho rau kev tiv thaiv xeb, thiab cov npog ntawm ob qhov kawg yog kho rau kev tiv thaiv plua plav.20crmnti steel yeeb nkab nta: cov phab ntsa sab hauv thiab sab nraud ntawm cov yeeb nkab steel muaj qhov siab precision thiab siab tiav, cov yeeb nkab steel tsis muaj oxide txheej tom qab kev kho cua sov, cov phab ntsa sab hauv muaj kev huv huv, cov yeeb nkab steel bears siab, txias dabtsi yog khoov tsis tau. deform, thiab expansion thiab flattening tsis muaj kab nrib pleb.

Shandong Haihui Steel Co., Ltd txias dov precision ci seamless steel kavntawm GB 10 #, GB20 #, GB35 #, GB45 #, 20Cr, 40Cr, 16Mn, 35CrMo, 20CrMoTi, Gcr15.