Fenti mai zafi wanda zai iya jure wa iskar shaka mai zafi da kuma tsatsa mai zafi. Masana'antar rufewa mai zafi gabaɗaya a cikin 100℃-1800℃, yawancin fenti mai zafi yana amfani da maganin zafin jiki mai zafi, buƙatun fenti a cikin muhalli na iya cimma halayen jiki mai ɗorewa (babu zubarwa, babu kumfa, babu fashewa, babu foda, babu tsatsa, yana ba da damar ɗan canza launi). Zaɓin gabaɗaya na azurfa ko baƙi, launuka biyu suna da daidaito, ba mai sauƙin ɓacewa a zafin jiki mai zafi ba. Titanium dioxide yana da kyakkyawan kwanciyar hankali na zafi, juriya ga zafin jiki 350-400℃ ba ya canza launi kuma 600℃ yana canzawa zuwa launin ruwan kasa, har zuwa 1200℃ zuwa 1300℃ yana zama launin ruwan kasa mai duhu wanda ba za a iya canzawa ba.
Juriyar zafi na zinc oxide a cikin farin launi shine 250 zuwa 300℃, lithopone ya dace da zafi na dogon lokaci a 250℃.
A cikin launin baƙi, ana amfani da zafi na dogon lokaci a kan carbon black a 250℃, idan zafin ya wuce 300℃, launin zai shuɗe. Juriyar zafi na dogon lokaci na foda graphite da manganese dioxide na 300℃.
Jajayen launin da ke cikin jan ƙarfe oxide da cadmium ja ne na digiri 250 a lokacin zafi na dogon lokaci.
Rawaya, rawaya da rawaya cadmium strontium na dogon lokaci mai zafi zai iya jure yanayin zafi na 200℃ kawai.
Lokacin Saƙo: Afrilu-12-2023