Ukukhiqizwa Kwamathini Kadoti Angaphandle Ngeqembu Lasefektri

Ezindaweni zangaphandle ezifana namapaki nezindawo zokukhempa, amathini kadoti angaphandle asebenza “njengabalindi abangabonakali” bokuhlanzeka komphakathi kanye nokulondolozwa kwemvelo. Udoti wangaphandle oklanywe kahle awukwazi nje ukuqoqa imfucuza ngempumelelo kodwa futhi unciphisa ukungcoliswa kwemvelo futhi wenze kube lula ukuhlunga imfucuza. Kodwa-ke, amathini kadoti angaphandle avamile avame ukubhekana nezinkinga ezifana “nokugqwala nomonakalo” kanye “nemiyalelo yokuhlunga engaqondakali,” okubeka engcupheni ukusebenza kahle kokuphathwa kwemfucuza ezindaweni zangaphandle. Manje, ukuvela kwesizukulwane esisha samathini kadoti angaphandle enziwe ngokhuni lwensimbi kushintsha kabusha “inani lawo elisebenzayo nelingokwemvelo.” Phakathi kwalokhu, ithini likadoti langaphandle lenziwe ngokhuni lwensimbi likaHaoyida liyisibonelo esihle salokhu “kuguquka.”

Ukuchayeka elangeni kanye nemvula ezindaweni zangaphandle “kuyizitha zemvelo” zamathini kadoti angaphandle—ensimbi evamile igqwala futhi igqwale kalula, kuyilapho eyokhuni ithambekele ekulimaleni komswakama kanye nokubola. Ithini likadoti elihlanganisiwe lensimbi nezinkuni libhekana nale nselele ngezinto ezihambisanayo: uhlaka lwayo lwensimbi lufakwa ku-hot-dip galvanization—kufaka isembozo se-zinc esivikelayo—esihlanganiswe nesembozo sempuphu esinobungani nemvelo. Lesi sivikelo esikabili siqinisekisa ukumelana nokugqwala iminyaka engaphezu kwengu-30. Ubuso bokhuni busebenzisa ukhuni olufakwe i-carbon ejulile, oluphathwe ngokulondolozwa. I-carbonization yokushisa okuphezulu isusa umswakama namaqanda ezinambuzane, kulandelwe yi-sealant engangeni manzi. Le nqubo igcina ukuthungwa kwemvelo ngenkathi imelana nomswakama wangaphandle kanye nomonakalo wezinambuzane, ivimbela ukuqhekeka nokunyamalala.

Ngale kwezinto zokwakha, umklamo ngokwawo uchaza inani lawo lemvelo. Leli bhokisi likadoti langaphandle linezibindi ezine ezizimele zokuhlunga imfucuza, ngayinye ilebula elicacile (isib. ingilazi, ipulasitiki, enye imfucuza), yehlisa izithiyo zomsebenzisi futhi yenza kube lula ukuhlunga imfucuza yangaphandle. Ifakwe ngezivalo ezikhiywayo, ivimbela ukuvuza kwephunga kanye nokuzalana kwezinambuzane, iqinisekisa ukusetshenziswa okuhlanzekile. Umklamo wokuvula oqondile uthuthukisa ukusebenziseka kalula komsebenzisi futhi unciphisa ukuchitheka kwemfucuza.

Njengomkhiqizo ogxile ezindaweni zangaphandle, udoti wangaphandle wensimbi kaHaoyida ungabonisa ulwazi oluguqula izinto kanye nokuklama lube yimikhiqizo ewusizo. Ifanelekela amapaki, izindawo zokukhempa, nezinye izilungiselelo zangaphandle, lo doti wangaphandle ungenziwa ngezifiso ngezinsizakalo zasefektri ukulungisa ubukhulu, umthamo, noma ukuhlunga amalebula ezindaweni ezithile, ukuqinisekisa ukuhlanganiswa okungenamthungo ezindaweni ezahlukene zangaphandle. Imodeli yokuthengiswa kwefektri ngobuningi ivumela ukwamukelwa okubanzi kwala mathini kadoti angaphandle asebenzayo kuzo zonke izindawo zangaphandle, okuphakamisa ukuphathwa kokuhlanzeka komphakathi jikelele.

Kusukela ekubeni “ithuluzi lokugcina elilula” kuya ekubeni “umlingani onobungani nemvelo ohlanganisa izinto ezihlala isikhathi eside kanye nomklamo oqhubekayo,” lo doti wangaphandle ungaba yisibonelo sendlela izikhungo zomphakathi zangaphandle ezingalinganisela ngayo ukusebenza kahle kanye nomthwalo wemfanelo wemvelo. Ukwethulwa kwalo doti wangaphandle owenziwe ngensimbi nokhuni akugcini nje ngokuthuthukisa ukuqina nokusebenza kodwa futhi kukhuthaza ukuhlanzeka kwemvelo kanye nokulondolozwa kwemvelo ngomklamo ocatshangelwe kahle—okuhlanganisa inani eliyinhloko lamathini kadoti angaphandle njengezinto eziyisisekelo zemvelo ngaphakathi kwezilungiselelo zangaphandle.