Tshuaj lom neeg muaj pes tsawg leeg ntawm Q195

Q195 yog hom ntawm cov qauv roj carbon ua hlau hauv kuv lub teb chaws. Nws cov tshuaj lom neeg muaj pes tsawg leeg yog qhov tseem ceeb hauv kev txiav txim siab nws cov cuab yeej siv thiab ua cov yam ntxwv. Cov qauv tshwj xeeb thiab cov qauv siv tau muaj raws li nram no:
I. Cov khoom siv tseem ceeb (pawg feem feem,%)
Raws li lub teb chaws tus qauv "GB / T 700-2006 carbon cov qauv hlau," cov tshuaj lom neeg sib xyaw ua ke ntawm Q195 yuav tsum ua kom tau raws li cov kev cai hauv qab no:
Cov pa roj carbon (c): tsawg dua los yog sib npaug rau 0.12%
Cov pa roj carbon yog ib qho tseem ceeb cuam tshuam rau cov hlau ua kom muaj zog. Q195 muaj cov ntsiab lus carbon tsawg tsawg heev, ua rau nws qis- cov hlau. Qhov no ua rau muaj lub zog qis tab sis kev du me me thiab kev ua tau zoo nkauj thiab weldability.
Silicon (si): tsawg dua lossis sib npaug rau 0.30%
Silicon, ntxiv li deoxidizer, tuaj yeem nce me ntsis ntxiv hlau zog me ntsis. Txawm li cas los xij, ntau ntau ntau dhau ntawm cov tuaj yeem txo cov qauv sib zog thiab tawv. Cov lus silicon hauv Q195 yog khaws qis kom ntseeg tau tias txoj kev ua kom zoo.
Manganese (mn): tsawg dua lossis sib npaug rau 0.50%
Manganese txhim kho lub zog thiab tawv ntawm cov hlau. Txawm li cas los xij, cov ntsiab lus manganese tsawg hauv Q195 txwv nws lub zog txhim kho, feem ntau pab hauv Deagidation thiab cov khoom siv ua kom zoo. Phosphorus (p): tsawg dua lossis sib npaug rau 0.045%
Phosphorus yog kev tsim txom impurity uas tau nce txias txias brittleness ntawm cov hlau (nquag mus rau qhov kub me me), yog li nws cov ntsiab lus yuav tsum tau txwv nruj me ntsis.
Sulphur (s): tsawg dua lossis sib npaug rau 0.050%
Sulfur tseem yog kev ua phem rau impurity uas tuaj yeem ua rau kub brittleness (nquag} kub ua) hauv cov hlau, yog li nws yuav tsum khaws cia ntawm qib qis.
Lwm cov ntsiab lus: seem seem (xws li chromium, npib tsib xee, tab sis tooj) muaj cov ntsiab lus cuam tshuam rau "tag nrho cov ntsiab lus tseem ceeb" hauv tus qauv.
Ii. Qhov sib txuam ntawm cov yam ntxwv sib xyaw thiab kev ua tau zoo
Vim tias nws cov pa roj carbon tsawg thiab cov ntsiab lus manganese, Q195 lub zog muaj zog (elongation lub zog ntau dua lossis sib npaug rau cov kev ua haujlwm txias xws li kev sib tw txias thiab stamping.
Cov qib sulfur thiab phosphorus qis thiab cov qib phospholor
Qhov yooj yim muaj kev sib xyaw (tsis muaj cov khoom siv aloying) txo cov nqi tsim khoom thiab ua rau nws haum rau huab hwm coj ntau lawm ntawm cov khoom lag luam hlau txhua hnub. III. Qhov sib txawv los ntawm lwm cov hlau hlau
Piv rau siab dua - Lub zog carbon hlau zoo li Q235 thiab Q275, Q195 muaj cov ntsiab lus me me thiab cov ntsiab lus manganese, ua rau muaj lub zog qis. Txawm li cas los xij, nws muaj kev ua haujlwm siab dua thiab ua haujlwm. Qhov no ua rau nws qis - Lub zog carbon cov zog carbon cov hlau txheem hlau thiab feem ntau siv hauv cov ntawv thov uas muaj zog yuav tsum tau muaj tsawg.
Hauv cov ntsiab lus, Q195 cov tshuaj muaj pes tsawg leeg yog cov yam ntxwv ntawm cov roj carbon tsawg, thiab tsis tshua muaj txiaj ntsig ntawm kev ua tiav yooj yim, tus nqi qis, thiab kev du me me.