30CrMo alloy steel yeeb nkab

Lus piav qhia luv luv:

Khoom specification:

Sab nraud txoj kab uas hla ntawm cov yeeb nkab steel 20-426

Hlau yeeb nkab phab ntsa thickness ntawm 20-426

Khoom taw qhia:

① Ob tus lej ntawm qhov pib ntawm tus lej hlau qhia cov ntsiab lus carbon ntawm cov hlau, nrog rau cov ntsiab lus nruab nrab ntawm ob peb txhiab, xws li 40Cr, 30CrMo alloy steel yeeb nkab

② Lub ntsiab alloying ntsiab nyob rau hauv steel, tshwj tsis yog ib co microalloying ntsiab, feem ntau qhia los ntawm ob peb feem pua.Thaum qhov nruab nrab cov ntsiab lus alloy tsawg dua 1.5%, tsuas yog cov cim cim feem ntau yog cim rau hauv cov hlau, tab sis tsis yog cov ntsiab lus.Txawm li cas los xij, hauv cov xwm txheej tshwj xeeb, nws yooj yim kom tsis meej pem, tus lej "1" tuaj yeem raug cim tom qab lub cim cim, xws li tus lej hlau "12CrMoV" thiab "12Cr1MoV", cov ntsiab lus chromium ntawm qub yog 0.4-0.6%, thiab qhov tom kawg yog 0.9-1.2%.Txhua yam zoo ib yam.Thaum qhov nruab nrab alloying ntsiab lus ≥1.5%, ≥2.5%, ≥3.5% …… ", lub cim lub cim yuav tsum raug cim tom qab cov ntsiab lus, tuaj yeem qhia tau tias yog 2, 3, 4…… Etc. Piv txwv li, 18Cr2Ni4WA.

③ Alloy cov ntsiab lus xws li vanadium V, titanium Ti, aluminium AL, boron B thiab tsawg lub ntiaj teb RE hauv cov hlau yog cov khoom siv microalloying.Txawm hais tias cov ntsiab lus tsawg heev, lawv tseem yuav tsum tau cim rau ntawm tus lej steel.Piv txwv li, hauv 20MnVB steel.Vanadium yog 0.07-0.12% thiab boron yog 0.001-0.005%.

④ "A" yuav tsum tau ntxiv rau qhov kawg ntawm tus lej ntawm cov hlau qib siab kom paub qhov txawv ntawm cov hlau zoo.

⑤ Lub hom phiaj tshwj xeeb alloy qauv steel, steel tooj prefix (los yog cov lus tom qab) sawv cev rau lub hom phiaj ntawm lub cim steel.Piv txwv li, 30CrMnSi steel tshwj xeeb yog siv rau riveting screws yog qhia raws li ML30CrMnSi.

Manufacturing technology:

1. Kub dov (extrusion seamless steel yeeb nkab): round tube dawb paug → cua sov → perforating → peb-siab kab pheeb ces kaum dov, nruam dov los yog extrusion → stripping → sizing (los yog txo) → txias → straightening → hydrostatic test (los yog soj ntsuam) → marking → khaws cia

2. Cold-drawn (dov) seamless steel yeeb nkab: round tube dawb paug → cua sov → perforation → taub hau → annealing → pickling → oiling (tooj liab plating) → multi-pass txias drawing (txias dov) → blank raj → tshav kub kho → straightening → Hydrostatic test (kev tshuaj xyuas) → kos npe → cia