42crmo Seamless 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:

Lub hom phiaj ntawm 42crmo seamless steel yeeb nkab: tshwj xeeb hlau rau choj yog "42crmo", tshwj xeeb hlau rau tsheb girder yog "42CRmo", tshwj xeeb hlau rau siab nkoj yog "42Crmo".Cov hlau no yog kev vam khom cov ntsiab lus ntawm carbon (C) cov ntsiab lus los txhim kho cov khoom siv ntawm cov hlau, yog li ntawd, raws li cov ntsiab lus carbon ntawm siab thiab qis, cov hlau no tuaj yeem muab faib ua: cov pa roj carbon tsawg - carbon. cov ntsiab lus feem ntau tsawg dua 0.25%, xws li 10, 20 steel, thiab lwm yam;Cov pa roj carbon nruab nrab - cov ntsiab lus carbon feem ntau nyob nruab nrab ntawm 0.25 ~ 0.60%, xws li 35, 45 steel, thiab lwm yam. Cov pa roj carbon ntau - cov ntsiab lus carbon feem ntau ntau dua 0.60%.Xws li cov hlau tsis nquag siv los ua cov kav hlau.

Txheej txheem specification:

Kub ua hauj lwm specification

Cua sov kub 1150 ~ 1200 ° C, pib kub 1130 ~ 1180 ° C, kawg kub> 850 ° C, φ> 50mm, txias txias.

Normalizing specification

Normalizing kub 850 ~ 900 ° C, tawm ntawm qhov cub cua txias.

Kub kub tempering specification

Tempering kub 680 ~ 700 ° C, tawm ntawm qhov cub cua txias.

Specification rau quenching thiab tempering

Preheating kub 680 ~ 700 ° C, quenching kub 840 ~ 880 ° C, roj txias, tempering kub 580 ° C, dej txias los yog roj txias, hardness ≤217HBW.

Specification rau hardening thiab toughening nyob rau hauv - kub quenching

quenching kub 900 ° C, tempering kub 560 ° C, hardness (37 ± 1) HRC

Specification rau induction hardening thiab tempering