Thereflow tandapreheating wani aikin dumama ne da aka yi don kunna manna mai siyar da guje wa gazawar sassan da ke haifar da saurin zafi mai zafi yayin nutsewar kwano.Manufar wannan yanki shine a ɗora PCB a zafin jiki da wuri-wuri, amma yakamata a sarrafa ƙimar dumama a cikin kewayon da ya dace.Idan ya yi sauri sosai, girgizar zafin jiki zai faru, kuma allon kewayawa da abubuwan da aka gyara na iya lalacewa.Idan yana da jinkirin sosai, sauran ƙarfi ba zai ƙafe sosai ba, wanda zai shafi ingancin walda.Saboda saurin dumama da sauri, bambance-bambancen zafin jiki a cikin ɗakin murhun wuta a cikin ɓangaren ƙarshen yankin zafin jiki yana da girma.Don hana lalacewar abubuwan da aka gyara saboda girgizawar thermal, matsakaicin ƙimar dumama gabaɗaya ana kayyade shi azaman 4°C/S, kuma ana saita ƙimar haɓaka da aka saba a 1 ~ 3°C/S.
Lokacin aikawa: Agusta-24-2022