Insimbi engagqwaliyaziwa ngokumelana kwayo nokugqwala, kodwa ayivikelekile ngokuphelele ekugqwaleni. Insimbi engagqwali ingagqwala ngaphansi kwezimo ezithile, futhi ukuqonda ukuthi kungani lokhu kwenzeka kungasiza ekuvimbeleni nasekulawuleni ukugqwala.
Insimbi engagqwali iqukethe i-chromium, eyakha ungqimba lwe-oxide oluncane, olungasebenzi phezu kwayo uma luvezwa umoya-mpilo. Lolu ngqimba lwe-oxide, olwaziwa nangokuthi “ungqimba olungasebenzi,” lunikeza ukumelana nokugqwala okubangelainsimbi engagqwaliidume ngakho.
Izici Ezithinta Ukugqwala Kwensimbi Engagqwali：
Ukuchayeka kuma-Chlorides
Umonakalo Wemishini
Ukuntuleka kwe-oxygen
Ukungcola
Izinga Lokushisa Eliphezulu
Insimbi Engagqwali Esezingeni Elibi
Izindawo Ezinobunzima Zamakhemikhali
Izinhlobo Zokugqwala Kwensimbi Engagqwali:
Kunezinhlobo ezahlukene zokugqwala kwensimbi engagqwali. Ngayinye yazo inezinselele ezahlukene futhi idinga ukuphathwa okuhlukile.
Ukugqwala okuvamile– kuyinto ebikezelwa kakhulu futhi elula kakhulu ukuyiphatha. Ibonakala ngokulahlekelwa okufanayo kwendawo yonke.
Ukugqwala kwe-Galvanic– lolu hlobo lokugqwala luthinta iningi lama-alloy ensimbi. Lubhekisela esimweni lapho insimbi eyodwa ihlangana nenye futhi ibangele ukuthi eyodwa noma zombili zisabele komunye nomunye futhi zigqwale.
Ukugqwala kwe-pitting– uhlobo lokugqwala olutholakala endaweni ethile olushiya imigodi noma izimbobo. Luvame kakhulu ezindaweni eziqukethe ama-chloride.
Ukugqwala komgodi– futhi nokugqwala kwendawo okwenzeka emfantwini ophakathi kwezindawo ezimbili ezihlanganayo. Kungenzeka phakathi kwezinsimbi ezimbili noma insimbi kanye nengeyona insimbi.
Vimbela insimbi engagqwali ukuthi ingagqwali:
Hlanza insimbi engagqwali njalo ukuze ususe ukungcola futhi ugcine ungqimba lwayo oluvikelayo.
Gwema ukubeka insimbi engagqwali kuma-chloride namakhemikhali anamandla.
Vikela insimbi engagqwali ekulimaleni kwemishini ngokusebenzisa izindlela ezifanele zokuphatha nokugcina.
Qinisekisa ukuthi umoya ungena kahle ezindaweni lapho kusetshenziswa khona insimbi engagqwali ukugcina amazinga omoya-mpilo.
Khetha insimbi engagqwali yekhwalithi ephezulu enokwakheka kwe-alloy okufanele ukusetshenziswa okuhlosiwe.
Isikhathi sokuthunyelwe: Agasti-11-2023