Eziqhingini zokukhiqiza eziguquguqukayo zanamuhla, ukukhethwa kwezinto zokusetshenziswa kudlala indima ebalulekile ekunqumeni imiphumela yemikhiqizo nokusebenza kahle kwezinto ezisetshenziswayo. Phakathi kwezinto lezi, i-hot rolled coil igqama njengento eyisisekelo esetshenziswa ezimbonini eziningi, okubandakanya ezokwakha, ezemoto, nemishini esindayo. Lesi sihloko sihlose ukuhlinzeka ngokuhlola okuphelele ukuthi intengo nekhwalithi zihlangana kanjani ekuthengeni nasekusebenzeni kwe-hot rolled coil. Sihlola ukubaluleka kokukhetha ibanga elifanele le-HRC, izinto ezithinta amanani emakethe yayo, nomthelela ekuqinisweni nasekusebenzeni komkhiqizo. Ezinkampanini ezifuna imikhiqizo yensimbi ethembekile, ukuqonda lezi zixhumanisi kubalulekile ekwenzeni izinqumo zokutshala izimali ezinekhono.

Amakhoyili eligoqwe ngokushisa (HRC) ayizinto ezingavuthiwe ezibalulekile ezisetshenziswa kabanzi ngenxa yokulula kwawo nokonga izindleko. Inqubo yokukhiqiza ihilela ukugoqa insimbi emazingeni okushisa aphezulu, ngokuvamile angaphezu kuka-1700°F, okuvumela ukubunjwa nokwakheka kalula. Le ndlela yokukhiqiza iphumela kumakhoyili anokuthungwa kwendawo okubukhali kakhulu uma kuqhathaniswa nezinto ezigoqwe ngokubanda kodwa anikeza amandla amahle nokuguquguquka kwezinhlobonhlobo zezicelo.

Izinkampani ezifana ne-JSW Steel zizibeke njengabaholi ekukhiqizeni izinsimbi ezishisayo ezisezingeni eliphezulu ezihlangabezana namazinga aqinile embonini. Izinqubo zazo zokukhiqiza ezithuthukisiwe, okubandakanya ukusakaza okuqhubekayo nokushisa, ziqinisekisa ukungaguquguquki ekwakhekeni kwamakhemikhali nasezindaweni zemishini. Izinga lezinsimbi ezinjalo lithinta ngqo izinqubo zokukhiqiza ezilandelayo nokusebenza kwemikhiqizo yokugcina. Ngenxa yalokho, ukuthenga kubahlinzeki abahlonishwayo ababeka phambili ukuqinisekiswa kwekhwalithi, njengeProfit State International, kungaba nenzuzo enkulu kubakhiqizi.

Ngaphezu kwalokho, ama-coil ashiswe ashintshiwe asebenza njengezinto eziyisisekelo ekukhiqizeni i-galvanized steel coil, i-cold rolled coil, namashidi ensimbi engagqwali, okugcizelela kakhulu indima yawo emaphakathi ohlelweni lwezinsimbi.

Ukwanda nokuncipha kwamanani emakethe ye-hot rolled coil kuthonywa izinto ezahlukahlukene, okubalwa izindleko zezinto zokusetshenziswa, isidingo somhlaba wonke, amanani kagesi, kanye nezehlakalo zezombusazwe. Ngokwesibonelo, intengo ye-iron ore kanye ne-coking coal, okuyizinto ezibalulekile ekwenzeni insimbi, ivame ukubangela izindleko ezibanzi ze-HRC. Ngaphezu kwalokho, imijikelezo yezomnotho ithinta ukukhiqizwa kwezimboni futhi ngokulandelayo isidingo semikhiqizo yensimbi.

Ukulinganisa intengo nekhwalithi kubalulekile kubakhiqizi abahlosile ukuthuthukisa izindleko zokukhiqiza ngaphandle kokudela ukusebenza komkhiqizo. Ngenkathi amakhoyili ashisayo ashunqulwe ngentengo ephansi angase anikeze ukonga okusheshayo, avame ukuza nezingozi ezifana nokuhlanganiswa kwamakhemikhali okungahambisani noma amandla omshini. Lezi zinkinga zingaholela ekwandeni kokuchitha, ukulungisa kabusha, kanye nokuhluleka okungenzeka ezikhathini ezilandelayo zokukhiqiza. Ngakolunye uhlangothi, ukutshala imali ku-HRC esezingeni eliphezulu, yize ibiza kakhulu ekuqaleni, kungaholela ekuqinekeni okungcono nokusebenza kahle.

Imiphumela yezomnotho yokukhethwa kwezinto zokwakha idlula izindleko zokukhiqiza. Ukusebenzisa ama-coil angaphansi kwezinga kungandisa izindleko zokugcinwa futhi kunciphise impilo yemikhiqizo eqediwe, kuthinte inzuzo esikhathini eside. Ngakho-ke, indlela yamasu yokuhlola intengo ye-hot rolled ngokumelene nezinga lekhwalithi kubalulekile ekukhuleni kwebhizinisi okuzinzile.

Ukusebenzisa amakhoyili ashunqulwe ngomshini aphansi kakhulu kubeka izinselele ezinkulu. Izinkinga ezijwayelekile zihlanganisa ukukhubazeka kobuso, ukungalingani kobukhulu, kanye nezimfanelo ezingezinhle zemishini njengamandla okudonsa nokunwebeka. Lezi zici zingalimaza ubuqotho bokwakheka kwemikhiqizo, okuholela ekuhlulekeni ngaphansi kwengcindezi noma ukuthambekela ekugqwaleni.

Emikhiqizweni, ukukhubazeka okunjalo kuvame ukubangela ukubambezeleka kokukhiqiza, ukwanda kwesilinganiso sokuchitha, kanye nezindleko eziphakeme zokusebenza. Ngokwesibonelo, ukungalingani kobuso kudinga ukucubungula okwengeziwe noma ukugqoka, okwengeza ezindlekweni zabasebenzi nezinto. Ngaphezu kwalokho, ikhwalithi yomkhiqizo eyonakele ingalimaza idumela lomkhiqizo kanye nokwethembeka kwamakhasimende.

Iziphumo zesikhathi eside zibaluleke kakhulu emikhakheni efana nokwakhiwa kwezakhiwo nezimoto, lapho amazinga okuphepha aqinile khona. Ukusebenzisa ama-hot rolled coils angaphansi kungandisa ubungozi bokubhekana nemithwalo yemfanelo futhi kungaholela ezijezisweni zomthetho. Ngakho-ke, izinyathelo zokulawula ikhwalithi kanye nokuhlolwa kwabaphakeli kubalulekile ukuqinisekisa ukuthi izinto ziyahambisana nemigomo yomkhakha.

Izinzuzo zokusebenzisa ama-hot rolled coils asezingeni eliphezulu ziningi. I-HRC esezingeni eliphezulu inikeza izakhiwo ezinhle kakhulu zemishini, ubukhulu obuhambisanayo, nokuqedwa kwendawo okungcono, okuguqulela ekusebenzeni okuthuthukisiwe komkhiqizo. Lokhu kuthembeka kusekela izinqubo zokukhiqiza ezisebenzayo njengokushisela, ukugoba, nokubumba.

Izinqubo eziqinile zokulawula ikhwalithi, njengezisebenziswa abahlinzeki abaziwa emhlabeni wonke okubalwa kubo i-JSW Steel kanye ne-Profit State International, zibandakanya ukuhlolwa okuqinile kwezinto ezakhiwe ngazo, amandla okwelula, kanye nokubekezelelana kobukhulu. Lezi zindlela ziqinisekisa ukuthi amakhoyili ahlangabezana noma adlula imininingwane yamakhasimende kanye namazinga emboni.

Ukutshala imali kuma-hot rolled coils asezingeni eliphezulu nakho kunomthelela ekusimameni ngokunciphisa udoti nokwelula impilo yesevisi yomkhiqizo. Ukuqina okuthuthukisiwe kunciphisa ukuphindaphinda kokushintshwa noma ukulungiswa, okuthinta kahle iminyele yezemvelo kanye nezindleko zokusebenza.

Imakethe ye-Indian steel idlala indima ebalulekile emhlabeni jikelele we-hot rolled coil. I-India iyimboni enkulu yokukhiqiza nokusetshenziswa kwesithako, enesidingo esikhulu esivela emkhakheni wokwakha, ezokwakha, kanye nezimoto. Ama-hot rolled coils akha ingxenye ebalulekile yalolu sizo ngenxa yokuguquguquka kwawo nokusebenza kahle kwezindleko.

Izinyathelo zentengo emakethe yase-India zithonywa yizinto zangaphakathi ezifana nezinhlelo zik government, izintela zokungenisa, kanye nokutholakala kwezinto zokwakha, kanye nezitayela zomhlaba jikelele. Isibonelo, ukuxhumana phakathi kwentengo ye-hot rolled kanye namashidi e-stainless steel kuvame ukukhombisa ukushintsha okubanzi emisebenzini yokukhiqiza kanye nezilinganiso zokuthumela nokungenisa.

Abadlali embonini abafana ne-Profit State International basebenzisa ubudlelwano babo obuhlelelekile ukuhlinzeka ngentengo yokuncintisana ngenkathi begcina ikhwalithi ephezulu yomkhiqizo. Iphothifoliyo yabo ebanzi, ethokoziswa nge-IMIKHIQIZO ikhasi, ihlangabezana nezidingo ezahlukahlukene zemikhakha, isiza amabhizinisi ukuthi abhekane nezingcindezi zamanani ngaphandle kokudela amazinga ezinto.

Ngokuphetha, ukuhlobana phakathi kwentengo nekhwalithi kuma-coils ashisiwe kuyinto ebalulekile kubakhiqizi abahlanganisa ukuthuthukisa ukusebenza komkhiqizo nokusebenza kahle kokusebenza. Ngenkathi izinto ezithinta izindleko ziqhuba izinqumo zokuthenga, ukubeka phambili ikhwalithi kuqinisekisa ukuqina, ukuphepha, nezinzuzo zezomnotho zesikhathi eside. Ukutshalwa kwezimali kuma-coils ashisiwe asezingeni eliphezulu—asekelwa izilawuli zekhwalithi eziqinile futhi atholwa kubahlinzeki abahlonishwayo njengeProfit State International—kuphumela ezinzuzweni ezilinganisekayo emiphumeleni yokukhiqiza.

Amabhizinisi afuna ukuthuthukisa isu lawo lokuthenga insimbi, ukuqonda izinto ezithinta imakethe, izinqubo zokukhiqiza, kanye nemiphumela yekhwalithi kubalulekile. Ukuhlola uhla olubanzi lwemikhiqizo yensimbi futhi uzuze ukubonisana nochwepheshe, vakashela i-IKHAYA ikhasi le-Profit State International. Ukubeka ikhwalithi phambili kunokonga okwesikhashana kuzoholela empumelelweni eqhubekayo kanye nesinzuzo yokuncintisana embonini yensimbi.