Insimbi engagqwaliyaziwa ngokumelana 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, eyenza ungqimba oluncane lwe-oxide lwe-passive ebusweni bayo lapho luvezwe umoya-mpilo. Lolu ngqimba lwe-oxide, olwaziwa nangokuthi "ungqimba lwe-passive," lunikeza ukumelana nokugqwala lokhoinsimbi engagqwaliidume ngokuthi.
Izinto Ezithinta Ukugqwala Kwensimbi Engagqwali:
Ukuchayeka ku-Chlorides
Ukulimala Kwemishini
Ukuntuleka Kwe-Oxygen
Ukungcola
Amazinga Okushisa Aphakeme
Insimbi Engagqwali Yekhwalithi Empofu
I-Harsh Chemical Environments
Izinhlobo ze-Stainless Steel Corrosion:
Kunezinhlobo ezahlukene zensimbi engagqwali. Ngayinye yazo iveza izinselele ezahlukene futhi idinga ukuphathwa okuhlukile.
Ukugqwala okujwayelekile– yilona elibikezelwa kakhulu futhi kulula ukuliphatha. Kubonakala ngokulahleka okufanayo kwendawo yonke.
I-Galvanic Corrosion- lolu hlobo lokugqwala luthinta ama-alloys amaningi ensimbi. Kubhekiselwa esimweni lapho insimbi eyodwa ihlangana nenye futhi ibangele eyodwa noma kokubili sabelane enye kwenye futhi igle.
Ukugqwala komgodi– wuhlobo lwasendaweni lokugqwala olushiya imigodi noma izimbobo. Kuvame kakhulu ezindaweni eziqukethe ama-chloride.
Ukugqwala kweCrevice– nokugqwala kwendawo okwenzeka emfantwini phakathi kwezindawo ezimbili ezihlanganayo. Kungenzeka phakathi kwezinsimbi ezimbili noma insimbi nokungeyona insimbi.
Vimbela insimbi engagqwali ukuthi ingagqwali:
Hlanza insimbi engagqwali njalo ukuze ususe ukungcola futhi ugcine isendlalelo sayo esiyisivikelo.
Gwema ukuveza insimbi engagqwali kuma-chloride namakhemikhali anokhahlo.
Vikela insimbi engagqwali emonakalweni wemishini ngokusebenzisa indlela efanele yokuphatha nokuyigcina.
Qinisekisa ukungena komoya ngendlela efanele ezindaweni lapho kusetshenziswa insimbi engagqwali ukuze kugcinwe amazinga komoyampilo.
Khetha insimbi engagqwali yekhwalithi ephezulu enokwakheka kwengxubevange efanele yohlelo oluhlosiwe.
Isikhathi sokuthumela: Aug-11-2023