Muaj feem ntau cov cai hauv qab no rau steel rau khaus khaus.

(1) Cov ntsiab lus carbon ntawm cov hlau yog txiav txim siab los ntawm kev ua haujlwm ntawm cov khoom, uas tuaj yeem nyob ntawm 0.15% txog 1.2%. Qhov no yog qhov yooj yim tshaj plaws yuav tsum tau thiab cov txheej txheem yuav tsum tau ua raws li induction cua sov.

(2) Cov hlau yuav tsum muaj lub siab xav tias cov nplej austenite tsis yooj yim kom loj hlob. Feem ntau, lub sijhawm cua sov induction yog luv luv, thiab cov nplej tsis yooj yim kom loj hlob, tab sis cov cua kub kub kuj tseem siab.

(3) Cov hlau yuav tsum muaj cov qauv zoo thiab zoo ib yam li ntau li ntau tau. Cov hlau tuaj yeem tau txais cov nplej zoo austenite thiab muaj qhov tso cai kom sov siab dua thaum cua sov, uas yog qhov tseem ceeb tshwj xeeb tshaj yog thaum cua sov induction, vim tias cov cua sov induction nyuaj dua los tswj qhov kub thiab txias kom raug tshaj qhov cub cua sov, thiab cov cua kub kub yog siab dua. siab.

(4) Rau cov hlau induction hardening, nws yog qhov zoo dua los tswj cov qoob loo ntawm qib 5 txog 8.

(5) Xaiv cov ntsiab lus carbon. Rau qee qhov tseem ceeb xws li crankshafts, camshafts, thiab lwm yam, thaum xaiv cov qib steel, cov kev xav tau ntxiv rau cov ntsiab lus ntawm cov pa roj carbon monoxide feem ntau tau muab tso rau pem hauv ntej. Hlau 0.42% ~ 0.50%) yog txo rau 0.05% ntau yam (xws li 0.42% ~ 0.47%), uas tuaj yeem txo qhov cuam tshuam ntawm kev hloov pauv ntawm cov ntsiab lus carbon ntawm cov kab nrib pleb lossis kev hloov hauv cov txheej txheej hardened.

1. Qhov tob xav tau ntawm decarburization txheej ntawm txias kos hlau. Thaum txias-draw steel yog siv rau induction hardening, yuav tsum tau rau qhov tob ntawm tag nrho cov decarburization txheej ntawm qhov chaw. Feem ntau, tag nrho decarburization txheej qhov tob ntawm txhua sab yog tsawg dua 1% ntawm txoj kab uas hla bar lossis thickness ntawm steel phaj. Lub hardness ntawm carbon-depleted txheej tom qab quenching yog tsawg heev, yog li cov txias-daws steel yuav tsum tau muab tshem tawm los ntawm lub carbon-depleted txheej ua ntej kuaj lub quenching hardness.