Stainless hlau vs Galvanized hlau
Hlau yog ib qho hlau ua los ntawm hlau thiab carbon. Cov pa roj carbon feem pua tuaj yeem sib txawv nyob ntawm qib thiab feem ntau nws nyob nruab nrab ntawm 0.2% thiab 2.1% los ntawm qhov hnyav. Txawm hais tias cov pa roj carbon yog cov khoom tseem ceeb alloying rau hlau qee yam khoom xws li Tungsten, chromium, manganese kuj siv tau rau lub hom phiaj.
Ntau hom thiab ntau npaum li cas ntawm cov khoom siv alloying txiav txim siab hardness, ductility thiab tensile zog ntawm steel. Alloying lub luag haujlwm yog lub luag haujlwm tswj xyuas cov qauv siv lead ua lattice ntawm cov hlau los ntawm kev tiv thaiv kev tawg ntawm cov hlau atoms. Yog li, nws ua raws li tus neeg sawv cev hardening hauv steel. Qhov ceev ntawm cov hlau txawv ntawm 7, 750 thiab 8, 050 kg / m 3thiab, qhov no cuam tshuam los ntawm cov khoom sib xyaw ua ke ib yam. Kev kho cua sov yog txheej txheem uas hloov cov khoom siv ntawm cov hlau. Qhov no yuav cuam tshuam rau ductility, hardness thiab hluav taws xob thiab thermal zog ntawm steel.
Muaj ntau hom hlau xws li carbon steel, me me steel, stainless hlau, thiab lwm yam. Hlau feem ntau yog siv rau kev tsim kho. Cov tsev, chaw ntau pob, railway lem, txuas hniav yog ob peb qhov chaw ntawm ntau qhov chaw uas siv hlau hnyav heev. Tsis tas li ntawd, lawv tau siv hauv tsheb, nkoj, dav hlau, tshuab, thiab lwm yam. Feem ntau ntawm cov khoom siv hauv tsev niaj hnub no kuj ua los ntawm cov hlau. Tam sim no feem ntau cov rooj tog kuj tau hloov los ntawm cov khoom steel. Thaum cov hlau siv rau cov ntawv thov no, nws yog ib qho tseem ceeb kom ntseeg tau tias lawv cov kav ntev.
Ib qho teeb meem hauv kev siv hlau yog nws nyiam corrode. Muaj ntau yam kev ntsuas los txo lossis tshem tawm corrosion ntawm hlau. Stainless hlau thiab galvanized steel yog ob qho piv txwv ntawm cov hlau uas muaj peev xwm tiv thaiv corrosion tau zoo.
Stainless hlau
Stainless steel txawv ntawm lwm cov hlau alloys vim nws tsis corrode los yog xeb. Tsis tas li ntawd, raws li tau hais los saum toj no, nws muaj lwm yam khoom tseem ceeb ntawm steel.
Stainless hlau txawv ntawm cov hlau vim muaj cov chromium tam sim no. Nws muaj tsawg kawg yog 10.5% mus rau 11% chromium tus nqi los ntawm huab hwm coj. Yog li nws tsim ib txheej chromium oxide uas yog inert. Qhov no yog vim li cas rau tsis muaj peev xwm corrosion ntawm stainless hlau. Yog li ntawd, stainless hlau yog siv rau ntau lub hom phiaj xws li nyob rau hauv lub tsev, monuments, tsheb, machinery, thiab lwm yam.
Galvanized Steel
Galvanized steel tshwj xeeb yog tsim los tiv thaiv corrosion. Cov hlau yog coated nrog txheej zinc, tiv thaiv corrosion. Cov txheej txheem ntawm txheej hlau nrog zinc yog hu ua galvanizing. Nyob rau hauv cov txheej txheem no steel yog submerged nyob rau hauv melted zinc thiab tshuaj lom neeg cov tshuaj tiv thaiv ntawm zinc thiab steel nto daim ntawv cog lus zinc rau cov hlau mus tas li. Tsis tsuas yog nyob rau saum npoo, zinc yuav nyob hauv qab txheej ntawm cov hlau, thiab.
Yog li zinc yuav tsis yog lub tsho tiv no zoo li cov xim, nws yuav hnov mob nrog hlau thiab nkag mus rau hauv me ntsis tob dua. Qhov no nyob rau hauv cov nqe lus txhim kho corrosion withstanding peev xwm ntawm galvanized steel. Nquag galvanizing yog ua tiav tom qab ib yam dab tsi zoo li cov ntsia hlau lossis bolts yog ua los ntawm cov hlau.
Galvanized steel yog dav siv rau cov ntawv thov kev lag luam thiab rau cov tsev.
Qhov txawv ntawm Stainless Hlau thiab Galvanized Steel yog dab tsi?
• Chromium ntxiv rau hauv stainless hlau, kom txo tau qhov corrosion. Nyob rau hauv sib piv, galvanized steel yog reacted nrog zinc.
• Galvanized steel muaj zinc txheej ntawm qhov chaw, tab sis nyob rau hauv stainless hlau chromium yog dispersed nyob rau hauv cov hlau.
• Yog li thaum muaj khawb, galvanized steel zoo li corrode whereas stainless hlau tuaj yeem tiv taus ntev dua.
• Galvanized steel yog kim dua.
