steel mill

urukk nirmmaanathinulla oru vyaavasaayika plaantaanu steel mill allengil steel works. urukkia irumbayiru urukunnath muthal uruttiya uthppannam vare urukk nirmmaanatthinte ellah ghattangalum nadappilaakkunna oru samyojitha urukk nirmmaanamaayirikkaam ithu, ennaal urukia pigg irumbil ninno scrappil ninno urukk semi finished casting uthppannangal nirmmikkunna oru plaant aakam ithu.
charithram.
bessemer prakriyayude kandupidutham muthal, urukk millukal puddling allengil fining reethikale adisthaanamaakki irumbupanikal maatti. urukk uthppaadippikkunnathinu puthiya vazhikal pinneedu prathyakshappettu oru electric arck choolayil urukia scrappil ninnum, aduthide, nerittu kuranja irumbu prakriyakalil ninnum.
pathonpathaam noottaandinte avasaanathilum irupathaam noottaandinte thudakkathilum lokathile ettavum valia urukk millu yunaittad kingdatthile baaro-inn-furnassil sthithicheyyunna baaro hemattait steel kambani steel varkkukalaayirunnu. innu, lokathile ettavum valia urukk millu dakshina koriyayile gwaangyaangilaanu.
samyojitha millu.
oru samyojitha urukk millinu praadhamika urukkinte ellah pravartthanangalum undu. 
ulppaadanam
irumbayiru, chunnaambukallu, kalkari (allengil kookk) ennivayaanu oru samyojitha millinulla pradhana asamskritha vasthukkal. eee vasthukkal oru spodanaathmaka choolayilekku baachukalaayi charge cheiyunnu, avide ayiru irumbu samyukthangal adhika ooksijan upekshichu draavaka irumbaayi maarunnu. eathaanum manikkoorukalude edavelakalil, shekharicha draavaka irumbu spotana choolayil ninnu tapucheyyukayum onnukil pigg irumbil idukayo allengil kooduthal urukk nirmmaana pravarthanangalkkaayi mattu paathrangalilekku nayikkukayo cheiyunnu. charitraparamaayi bessemer prakriya saambathika urukkinte ulppaadanathil oru pradhana purogathiyaayirunnu, ennaal ippol adisthaana ooksijan choola polulla mattu prakriyakalaal ithu poornnamaayum maattisthaapichu.
urukia urukk "pookkal" ennu vilikkunna valia blokkukalaayi idunnu. casting prakriyayil aluminium cherkkunnath polulla vividha reethikal upayogikkunnu, angane steelile maalinyangal poortthiyaaya poovu murichumaattaan kazhiyunna uparithalathilekku pongunnu.
oru spodanam choola choodaakkunnathinum thanuppikkunnathinumaayi bandhapetta oorjjachelavum gadanaaparamaaya sammarddavum kaaranam, saadhaaranayaayi eee praadhamika urukk nirmmaana kappalukal niravadhi varshathe thudarchayaaya ulppaadana prachaaranatthil pravartthikkum. urukkinte aavasyam kuranja kaalayalavil polum, ulppaadana nirakkil chila krameekaranangal saadhyamaanengilum, spotana choola thanuppikkaan anuvadikkunnathu praayogikamalla.
samyojitha millukal valia soukaryangalaanu, avaa saadhaaranayaayi vaarshika seshiyilum athilum kooduthal 2,000,000-tonn nirmmikkaan maathrame laabhakaramaakoo. oru samyojitha plaant nirmmikkunna anthima uthppannangal saadhaaranayaayi valia gadanaaparamaaya vibhagangal, hevi plate, strip, vayar rooad, railway reyilukal, idaykkide baarukal, pipe thudangiya neelamulla uthppannangal ennivayaanu.
samyojitha urukk millukalumayi bandhapetta oru pradhana paaristhithika apakadamaanu kookk nirmmaanatthil ulppaadippikkunna malineekaranam, ithu oru spodanaathmaka choolayile irumbayiru kuraykkunnathinulla oru pradhana idatharam ulppannamaanu.
ulppaadanachelavu kuraykkunnathinu samyojitha millukalkk miinii millukalil upayogikkunna arck furnasukal, direct casting thudangiya chila prakriyakalum sweekarikkaam.
minimil.
oru minimil parambaraagathamaayi oru dvitheeya urukk uthppaadakaraanu; ennirunnaalum, nucor (lokathile ettavum valia urukk uthppaadakariloraal) vaanijya loha kambaniyum (cmc) minimil maathram upayogikkunnu. saadhaaranayaayi athinte irumbinte bhooribhaagavum scrap steelil ninnu labikkukayum upayogicha automobileukalil ninnum upakaranagalil ninnum allengil ulppaadanathinte upolppannangalil ninnum recycle cheyyukayum cheiyunnu. saadhaaranayaayi dry praadhamika asamskritha urukk nirmmaana metteeriyalaayi upayogikkaan valare chelaveriyathaanenkilum, steelinte aavasyamulla rasathanthram nilanirthaan sahaayikkunnathin direct reduced irumbu (dry) chilappol scrapinoppam upayogikkunnu. oru saadhaarana miinii-millil scrap urukunnathinaayi oru electric arck choola, rasathanthrathinte krithyamaaya niyanthranathinaayi oru laddle choola allengil vaakvam choola, urukia steel khara roopathilekku parivartthanam cheiyunnathinulla oru strip allengil billatt thudarchayaaya kaasttar, reheat choola, oru rolling mill enniva undaayirikkum.
konkreett shakthippeduthunna baar, flaattukal, konukal, chaanalukal, pipe, laitt reyilukal thudangiya baar uthppannangalude ulppaadanathinu mathramaayirunnu miinii mill aadyam poruthappettathu. poruthappettathu avasaanam muthal, direct strip casting prakriyayude vijayakaramaya aamukham miinii millile strip uthppaadanam saadhyamaakki. praadeshika vipanikal, vibhavangal allengil kuranja chelavil jolie cheiyunnavar enniva prayojanappeduthunnathi mattu urukk uthppaadanamillaatha oru pradeshathu palappozhum oru miinii mill nirmmikkum. udaaharanathinu, vayar droying upayogathinaayi vadi koyilukal nirmmikkunnathilo pipe nirmmikkunnathilo gathaagathathinum krishikkumaayi prathyeka vibhagangalil miinii mill plaantukalkku vaidagdhyam labhichekkaam.
miinii millukalude sheshi vyathyaasappedunnu chila plaantukal prathivarsham <aii. dii. 1> tonn vare utppaadippikkaam, oru saadhaarana valippam prathivarsham 200,000 muthal 400,000 tonn vareyaanu, chila pazhaya allengil speciality plaantukal prathivarsham 50,000 tonn vare maathram utppaadippikkaam. udaaharanathinu, nucor korppareshan athinte naalu sheett millukalil ninnu prathivarsham ekadesham aii. dii. 2 tonn sheett steelum 10 baar millukalil ninnu aii. dii. 1 tonn baar steelum rund plate millukalil ninnu aii. dii. 3 tonn plate steelum uthpaadippikkunnu.
electric arck choola pathivayi eluppathil aarambhikkaanum nirthaanum kazhiyunnathinaal, miinii millukalkk avarude uthppannangalude vipani aavasyam eluppathil pinthudaraan kazhiyum, aavasyam kooduthalaayirikkumbol 24 manikkoor shedyulil pravartthikkukayum vilppana kuravaayirikkumbol uthppaadanam vettikkuraykkukayum cheiyunnu. 

