♦Impahla yokuvikela ukugqwala
I-cast iron ine-anti-corrosion property ephelele, ngokusho kwerekhodi, kwakukhona amapayipi ensimbi abekwe eminyakeni engu-300 edlule esasetshenziswa, futhi izimo ezingenakubalwa zibonisa ukuthi amapayipi ensimbi aneminyaka engaphezu kweyikhulu yokuphila komsebenzi.Mayelana nokusetshenziswa kwamapayipi e-iron ductile, umlando ungaphezu kweminyaka engama-30.Kodwa i-ductile cast iron icishe ifane nensimbi empunga ekwakhekeni kwamakhemikhali.Futhi iqukethe i-silicon, ikhabhoni nezinye izakhi eziningi kunensimbi.Ukumelana ne-ductile cast iron ukugqwala nakho kufana nalokho kwe-grey cast iron.Lokhu kuboniswe ngokusetshenziswa futhi kwafakazelwa ngokwamandla.
♦ Ukuvikelwa kokugqwala kwepayipi
Kuyiqiniso ukuthi ipayipi lensimbi elingaphansi komhlaba elidlulisa amanzi aphuzwayo negesi lizothonywa kakhulu ngamakhemikhali kanye nendawo ebonakalayo yomhlabathi ngokuqondile.Isici esibaluleke kakhulu esibangela ukugqwala kulapho amapayipi ehlanganiswa ukuze abe ibhizinisi elide neliqhubekayo lokufaka ugesi.Ngamanye amazwi, ukugqwala kwenhlabathi kuzokhombisa izici ezihlukene kumapayipi ahlukene.Ngokusekelwe kulo mehluko, yenza i-concentration cell.Ingxenye yeseli kungenzeka ye-concentration cell izoba namandla kakhulu.Uma ukubeka into efaka ugesi emhlabathini kuzoletha ulayini omude wamandla kagesi bese i-anode yamanje izokwenza ukugqwala okukhulu kwe-boil.Ipayipi lensimbi elishiselwe yisibonelo esisobala.Ipayipi lensimbi elinezimbotshana, eliphethe ilunga lalo lomshini noma lohlobo lwe-T futhi livalwe nge-insulating rubber gasket, kunejoyinti lokufakwayo njalo ngemva kwamamitha angu-4-6.
♦ Ukumelana nokugqwala okubangelwa amandla kagesi
Njengoba i-ductile iron inokumelana nogesi okuphezulu, ukumelana nokugqwala okubangelwa amandla kagesi.
Isikhathi sokuthumela: Feb-04-2021