Nrog rau txoj kev loj hlob ntawm kev lag luam mining, kev faib cov npua hlau yog twb dav heev nyob rau hauv peb lub teb chaws, uas muaj peev xwm txaus siab rau qhov kev thov ntawm mechanical kev lag luam.Feem ntau, cov hlau siv los tsim cov yob loj ntawm galvanized hlau tuaj yeem muab faib ua ob chav kawm.Cov hlau siv ncaj qha los ntawm cov hlau ore los ntawm cov hlau ua cov hlab ntsha, cov ore muaj pes tsawg leeg yog hlau oxide, silica thiab lwm yam pob zeb.Thaum cov ore no tshwj xeeb ua kom zoo rau hauv cov hlau hlau, carbon, silicon, manganese, thiab lwm yam khoom sib xyaw rau hauv nws.Cov khoom tsim los ntawm txoj kev no yog hu ua npua hlau zoo tib yam, uas kuj yog cov khoom siv rau thawj qib.
Raws li cov kev cai sib txawv ntawm kev lag luam, nyob rau hauv lub smelting rauv raws li tus qauv xa tawm, muab cov alloy ingot sib txawv qhov hnyav, xws li weave, Ming, ntawv, Lang, silicon, thiab lwm yam, cov ntaub ntawv tawm ntawm smelting yog hu ua. kub ore.Muaj cov hlau grey, hlau dawb thiab cov lus hais saum toj no ua ke nrog cov kub ore raws, txhua tus muaj nws tus yam ntxwv tshwj xeeb, yog li lawv tau siv rau hauv kev lag luam tshawb nrhiav thiab xaiv raws li lawv tus kheej cov yam ntxwv.
Piv txwv li, nyob rau hauv grey hlau, nws cov carbon muaj nyob rau hauv hlau ore nyob rau hauv daim ntawv ntawm graphite, lub tawg yog feem ntau grey, mos thiab tawv, yooj yim lim txiav, haum rau casting.Nyob rau hauv cov hlau dawb, cov pa roj carbon thiab hlau tau ua ke los ua cov hlau carbide, cov kab nrib pleb zoo nkaus li dawb, qhov zoo yog muaj zog heev thiab nkig, thiab nws yog cov khoom ntawm malleable hlau.Alloying qib yog tsim los ntawm ntau yam alloying ntsiab nrog sib txawv muaj pes tsawg leeg thiab qauv.
Vim tias cov yob loj galvanized hlau alloy caij hauv ore hlau, tuaj yeem ua tooj liab los ntawm thickness, hardness, cuam tshuam quab yuam, lub zog, lub tsev qiv ntawv tus nqi, elongation, yog li alloy hlau nyob rau hauv kev siv ntawm cov hlau zoo, yog ib qho tseem ceeb auxiliary element.Galvanized hlau thiab cov hlau dav dav sib txawv heev, cov hlau dav dav yog pheej yig, thiab vim tias cov hlau tsis ruaj khov, yooj yim rau xeb hauv qhov chaw ntub dej, yog li kev ruaj ntseg tsis zoo, lub neej tsis ntev heev.
Galvanized hlau yog coated nrog ib txheej ntawm zinc ruaj khov nyob rau sab nraud ntawm cov hlau, thiab zinc txheej yog siv los tiv thaiv cov hlau thiab ua rau lub neej kev pab cuam ntawm cov hlau ntev.Nyob rau hauv kev tsim cov galvanized hlau, cov hlau yuav tsum tau pickled.Pickling yog siv qee cov kua qaub los yog kua qaub los ntxuav qee cov oxides ntawm cov hlau, uas yog, xeb, thiab lwm yam corrosion, kom ua tiav lub hom phiaj ntawm kev ntxuav hlau, kom zinc yuav poob thaum galvanized.
Post lub sij hawm: 28-12-22