** 1. Dab tsi yog ib qho nruab nrab cov pa roj hmab? **
Modon Steel yog ib hom carbon steel nrog cov ntsiab lus roj carbon nrog kwv yees li 0.30% mus rau 0.60%. Qhov sib npaug no ntawm cov pa roj carbon ua rau nws muaj zog thiab nyuaj dua li cov hlau me me, tab sis nws tseem ua rau nws tsis yooj yim thiab ntau dua weld. Cov hlau no tuaj yeem kho tau kub nyhiab, feem ntau los ntawm quenching thiab tempering, kom ntxiv txhim kho lawv cov cuab yeej siv cov tshuab, tsim kev sib xyaw ua ke zoo thiab tawv. Lawv feem ntau yog siv rau cov khoom siv tsheb, cov hlau, zog, thiab tsis quav ntsej.
** 2. Puas yog 1018 ib qho nruab nrab cov pa roj carbon? **
Tsis yog, 1018 steel yog tsis yog nruab nrab carbon steel. Nws tau cais raws li cov pa roj carbon tsawg (lossis me me) hlau. Nws cov ntsiab lus carbon yog kwv yees li 0.18%, uas yog qis dua 0.30% qhov pib rau cov roj carbon nruab nrab. Vim tias nws cov ntsiab lus carbon qis, 1018 yog tus ntse heev, thiab yooj yim heev weldable, tab sis nws tsis tuaj yeem ntxiv dag zog los ntawm kev kho cua sov.
** 3. Dab tsi yog qhov sib txawv ntawm cov roj carbon steel thiab cov pa roj hmab nruab nrab? **
Lub Koom Haum Thawj yog cov pa roj carbon cov ntsiab lus thiab lub txiaj ntsig neeg kho tshuab.
* ** Qis roj hlau ** feem ntau muaj txog 0.30% carbon. Nws yog tus cwj pwm kev kub siab, zoo heev Veldability, thiab yooj yim formability. Txawm li cas los xij, nws muaj lub zog tsawg thiab hardness thiab tsis tuaj yeem txhawb nqa los ntawm kev kho cua sov.
* ** Nruab nrab cov roj carbon steel ** muaj cov ntsiab lus carbon ntawm 0.30% thiab 0.60%. Cov ntsiab lus carbon ntau dua muab nws ntau dua lub zog, Hardness, thiab hnav tsis kam piv rau cov roj carbon tsawg. Lub lag luam - tawm yog txo qis ductility thiab kev tsim kev nyuaj ntau dua thiab kev sib sau. Qhov tseem ceeb, cov pa roj carbon hlau teb tau zoo rau kev kho cua sov (quenching thiab tempering), uas tso cai rau lawv lub zog thiab kev nruj me ntsis kom haum rau cov ntawv thov tshwj xeeb.
** 4. Yog 4130 ib nrab carbon hlau? **
Yog, 4130 steel feem ntau tau cais raws li cov pa roj carbon steel. Nws yog chromium - molybdenum cov ntsiab lus ntawm txog 0.30%, uas tau muab tso rau ntawm qhov tsawg kawg ntawm cov pa roj carbon ntau. Nws lub npe nrov yog "Chromoly steel." Thaum nws cov ntsiab lus carbon yog ib qho tseem ceeb, ntxiv rau cov chromium thiab molybdenumy txhim kho nws cov khoom nyuaj thiab lub zog, tshwj xeeb yog tom qab kev kho cua sov.
** 5. Yog 4140 ib qho nruab nrab carbon hlau? **
Yog, 4140 hlau yog ib qho piv txwv qub thiab ib qho piv txwv ib txwm muaj ntawm cov hlau roj carbon. Nws tseem yog chromium - molybdenum alloy steel, tab sis nrog ib tug ntau dua cov khoom siv roj carbon ntau ntawm kwv yees li 0.40%. Qhov chaw no nws surrely nyob rau hauv nruab nrab ntawm cov pa roj carbon ntau {{5} Taug kev tiv thaiv tom qab kev kho cua sov, ua rau ib qho ntawm cov siv hluav taws xob cua sov carbon alloy.
