** 1. Dab tsi yog dub yeeb hu ua? **
Cov npe feem ntau yog ** cov yeeb nkab steel dub ** lossis ** yeeb nkab hlau dub **. Nws yog ib qho tseem ceeb kom paub tias txawm hais tias lub npe "dub hlau yeeb nkab," Nws yog tiag tiag ua los ntawm tsawg- cov hlau carbon hlau. Qhov "dub" yog hais txog qhov tsaus ntuj- xim hlau oxide nplai uas lub tsho tiv no, uas yog tsim thaum lub sijhawm tsim khoom.
** 2. Puas tuaj yeem welded? **
Yog lawm, dub cov yeeb nkab tuaj yeem muab welded. Nws yog ua los ntawm malleable qis qis-} kev siv roj carbon ntau, uas feem ntau muaj cov steels zoo li lo (SMAW), lossis Tige (gtaw) vuam. Txawm li cas los xij, yuav tsum tau ua tus kws tshaj lij, raws li cov txheej txheem tsim nyog, yuav tsum muaj cov txheej txheem tsim nyog, muaj kev nyab xeeb, tshwj xeeb yog rau cov tshuab nias.
** 3. Yuav ua li cas txheeb xyuas cov yeeb nkab hom? **
Koj tuaj yeem txheeb xyuas hom yeeb nkab los ntawm kev txheeb xyuas ntau cov nta:
* ** Xim thiab ua tiav: ** Cov yeeb nkab dub muaj qhov tsaus ntuj, matte, thiab me ntsis ntxhib tiav. Hauv kev sib piv, Galvanized cov yeeb nkab muaj ci iab, silvery- grey, zinc- coated nto.
* ** Magnetism: ** Lub tshuab hlau nplaum muaj zog yuav ua rau ob qho tib si dub thiab galvanized steel yeeb nkab.
* ** Cim cim: ** Saib cov nyiaj muas lossis cim ntawm cov yeeb nkab nws tus kheej. Cov no feem ntau qhia cov qauv tsim khoom (zoo li ASTM A53 lossis A106), cov qhab-nees), thiab cov chaw tsim khoom lub npe.
* ** Daim ntawv thov: ** Yog tias cov yeeb nkab siv rau cov roj nkev lossis cov khoom siv roj ua, nws yuav luag yeej cov yeeb nkab dub. Yog tias nws tau siv rau cov dej hauv dej lossis sab nraum zoov fencing, nws yog cov yuav galvanized los tawm tsam xeb.
** 4. Dab tsi tshwj xeeb txog cov yeeb nkab dub? **
Tus yam ntxwv tshwj xeeb ntawm cov yeeb nkab dub yog nws tsaus hlau oxide txheej. Cov txheej no ua rau nws tiv taus cov cua sov siab tab sis tsis tiv taus cov dej corrosion. Cov cuab yeej tshwj xeeb no ua rau nws tus qauv thiab code {{2} Kev xaiv tau pom zoo rau kev xaiv nkev thiab cov khoom lag luam nyob rau hauv thaj chaw thiab lub tsev lag luam. Nws tseem tsawg dua kim thiab yooj yim dua los txiav thiab xov tshaj galvangized yeeb nkab.
** 5. Yuav ua li cas muaj zog yog dub steel yeeb nkab? **
Cov yeeb nkab steel hlau yog muaj zog heev thiab yog tsim rau cov qauv thiab siab {{}}} muaj cov ntawv thov. Nws lub zog yog txhais los ntawm nws "sijhawm" (uas qhia tias phab ntsa tuab) thiab nws qib. Cov Sijhawm nquag 40 dub yeeb nkab muaj lub zog tensile ntawm ib ncig 48,000 psi (phaus ib square nti) thiab ib qho txiaj ntsig lub zog ntawm txog 30,000 psi. Thicker lub sijhawm zoo li cov sij hawm 80 yog qhov muaj zog dua thiab tuaj yeem ua rau muaj ntau dua kev ntsuas.
