oxidation-lalata-resistant Cast iron waldi gami NiFe-1

Cast baƙin ƙarfe waldi sanda ne sau da yawa amfani da warware engine harsashi, cover jiki, inji tushe, simintin gyaran kafa hakora bayyana dabaran karaya, fasa, lalacewa, tamping rami walda matsaloli.Saboda babban abun ciki na carbon, tsarin da bai dace ba, ƙarancin ƙarfi da ƙarancin filastik, simintin ƙarfe na ƙarfe ba shi da ƙarancin walƙiya, wanda ke da sauƙin samar da fashe yayin waldawa, yana da wahala a yanke.Don samun sakamako mai gamsarwa a cikin walda da gyaran gyare-gyare na simintin ƙarfe, yana da mahimmanci a kula da "Kayan kashi uku da tsari bakwai", ba kawai don zaɓar sandar walda ba, har ma don ɗaukar hanyar walƙiya mai dacewa.
Ana ba da shawarar tsarin walda mai zuwa azaman tunani don waldawar ƙarfe da gyaran walda: 1, da farko cire sassan walda na sludge, yashi, ruwa, tsatsa da sauran tarkace;Bugu da kari, ya kamata a cire Layer-carbon-poor Layer da oxide Layer a saman simintin ƙarfe da ke aiki a ƙarƙashin Babban Zazzabi da yanayin tururi na dogon lokaci.2. Dangane da nau'in nau'in nau'in nau'in nau'in welded, ana aiwatar da matakan shirye-shirye kamar buɗaɗɗen tsagi, fasa hana hako rami da narkakkar kayan kwalliyar tafkin.3. Ga sassan da ke buƙatar walda mai sanyi, preheat su a 500-600 ° C, zaɓi halin yanzu mai dacewa, ci gaba da waldawa, kiyaye zafin zafin jiki na preheating yayin aikin walda, rufe kayan insulating kamar asbestos foda nan da nan bayan waldi, kuma bar su. sanyi sannu a hankali, don inganta juriya da sarrafa aiki.4. Domin sanyi waldi aiki guda, hana tushe karfe narkewa da yawa, rage hali na fari, hana da yawa zafi taro, sakamakon da wuce kima danniya, kananan halin yanzu, short baka da kunkuntar pass waldi ya kamata a yi amfani da nisa kamar yadda zai yiwu. Tsawon kowane wucewa kada ya wuce 50mm).Nan da nan bayan walda guduma walda don shakatawa danniya don hana tsagewa, har sai da zafin jiki ya ragu zuwa 60 digiri C ƙasa da wani walda.5, kula da ramin baka lokacin rufewa, don hana rufewar baka.