Yin aiki ba bisa ka’ida ba na induction narkewar murhu zai haifar da munanan hatsarori

The injin wutar lantarki ita kanta haɗin kan tsarin uku na lantarki, ruwa, da mai. Ayyukan da ba bisa ka’ida ba sukan haifar da munanan hadurra. Ana haramta ayyukan masu zuwa:

(1) Ana ƙara rashin cancantar caji da juzu’i a cikin tanderun;

(2) Haɗa narkakkar ƙarfe tare da lahani ko rigar ladle;

(3) An gano rufin tanderun ya lalace sosai, kuma ana ci gaba da narkewa;

(4) Mummunan girgiza injina zuwa rufin tanderun;

(5) Tanderun yana gudana ba tare da sanyaya ruwa ba;

(6) Narkar da ƙarfe ko tanderu tsarin jikin yana aiki ba tare da ƙasa ba;

(7) Gudu a ƙarƙashin kariya ta kariya ta tsaro ta al’ada;

(8) Lokacin da tanderun ba a kunna wutar lantarki ba, aiwatar da caji, ramming mai ƙarfi, samfuri, da ƙarawa.

Batch alloy, auna zafin jiki, cire slag, da dai sauransu. Idan wasu ayyukan da aka ambata a sama dole ne a yi su da wutar lantarki, ya kamata a dauki matakan tsaro da suka dace, kamar sanya takalma mai sanyaya da safofin hannu na asbestos.

Dole ne a gudanar da aikin gyaran tanderun da kayan aikin lantarki masu goyan baya a cikin yanayin rashin wutar lantarki.

Lokacin da tanderu ke aiki, ya zama dole a hankali saka idanu da zafin jiki na ƙarfe, siginar haɗari, zafin ruwa mai sanyaya da yawan kwarara yayin aikin narkewa. Ana daidaita ma’aunin wutar lantarki zuwa sama da 0.9, kuma matakan uku ko shida na halin yanzu yana daidaita daidai. Matsakaicin zafin ruwa na firikwensin, da sauransu bai wuce matsakaicin ƙimar da aka ƙayyade a cikin ƙira ba. Ƙananan iyakar zafin ruwan sanyi ana ƙayyade gabaɗaya akan yanayin cewa ba a sami natsewa akan bangon waje na firikwensin ba, wato, zafin ruwan sanyi ya ɗan fi zafin iska na yanayi. Idan waɗannan sharuɗɗan ba a cika su ba, ƙazantawa zai faru a saman firikwensin, kuma yiwuwar rushewar firikwensin zai ƙaru sosai.

Bayan sinadaran sinadaran da zafin jiki na narkakken ƙarfe sun cika buƙatun, ya kamata a yanke wutar lantarki kuma a taɓa baƙin ƙarfe cikin lokaci.

A ƙarshen aikin narke, narkakken ƙarfe ya ƙare. Don hana saurin sanyaya daga samar da manyan fashe a cikin rufin tanderun, dole ne a ɗauki matakan sanyaya jinkirin da suka dace, kamar ƙara faranti na asbestos zuwa murfin da ba a taɓa gani ba; an toshe ramin famfo tare da tubalin rufewa da yashi samfurin; An rufe tazarar da ke tsakanin murfin tanderun da bakin tanderun da yumbu mai raɗaɗi ko yashi na ƙirar ƙira.

Don murhun narkewar induction mai ƙarfi tare da babban ƙarfi, bayan aikin narkewa, yi ƙoƙarin guje wa cikakken sanyaya rufin tanderun. Ana iya amfani da hanyoyi masu zuwa:

(1) Ajiye wani ɓangare na narkakkar ƙarfe a cikin tanderun da kuma ƙarfafa a ƙananan ƙarfin lantarki don kiyaye zafin jiki na narkakken ƙarfe a kusan 1300 ℃;

(2) Shigar da na’urar dumama lantarki ko amfani da mai ƙona iskar gas a cikin ƙugiya don kiyaye yawan zafin jiki a 900～1100℃;

(3) Bayan dakatar da tanderun, rufe murfin tanderun, sannan a rage kwararar ruwan sanyaya da kyau na inductor, ta yadda za a sanyaya murfin murhun wuta a hankali zuwa kusan 1000 ℃, sannan a zubar da simintin ƙarfe na musamman mai siffar iri ɗaya. a matsayin crucible amma ƙarami a girman Rataya cikin tanderun, kuma ba da kuzari don zafi don kiyaye zafin jiki a kusan 1000 ℃. Lokacin da murhu na gaba ya fara aikin narkewa, ana amfani da ingot azaman frit.

Idan tanderun yana buƙatar rufewa na dogon lokaci, babu buƙatar ci gaba da dumin crucible. Domin mafi kyau ci gaba da tanderun rufi a karkashin yanayin gaba daya sanyaya ruwa, bayan narkakkar da baƙin ƙarfe a cikin crucible ya ƙare, an dauke frit a ciki da kuma yawan zafin jiki ya tashi zuwa 800 ℃ 1000 ℃, sa’an nan an rufe murfi tanderu, da ikon. an yanke, kuma tanderun dumi da sanyi a hankali. Cracks zai bayyana a cikin rufin da aka rufe bayan an rufe tanderun na dogon lokaci. Idan aka sake narkewa aka yi amfani da shi, dole ne a duba sosai a gyara shi. Lokacin narkewa, dole ne a ɗaga zafin jiki a hankali don ƙananan fasa da aka kafa a cikin rufin tanderun za a iya rufe shi da kansa.

A lokacin aiki na tanderun, ya kamata a duba yanayin rufin tanderun akai-akai don tabbatar da samar da lafiya da kuma inganta rayuwar wutar lantarki. Hanyoyin aiki da ba daidai ba sau da yawa suna haifar da rage rayuwar rufin tanderun, don haka dole ne a guje wa kuskuren gama gari masu zuwa:

(1) Ba a dunƙule rufin tanderu, gasa da kuma ɓata kamar yadda aka tsara;

(2) Abun da ke ciki da nau’in crystal na kayan rufin ba su cika buƙatun ba, kuma sun ƙunshi ƙarin ƙazanta

(3) Zazzabi mai zafi na narkakken ƙarfe a mataki na gaba na narkewa ya wuce iyakar da aka yarda;

(4) An yi amfani da aikin da ba daidai ba da tashin hankali na inji lokacin da ake ɗora kayan aiki mai ƙarfi ko gadoji saboda fitar da kayan tanderu, yana haifar da mummunar lalacewa ga rufin da ba a iya gani ba;

(5) Bayan an rufe tanderun, sai a kashe labulen tanderun kuma ana samun fashe-fashe da yawa.

Idan tanderun ta katse, za a iya rage yawan ruwan sanyaya don firikwensin yadda ya kamata, amma ba a ba da izinin kashe ruwan sanyaya ba, in ba haka ba sauran zafin wuta na rufin tanderun na iya ƙone Layer na firikwensin. Sai kawai lokacin da zafin jiki na rufin tanderun ya faɗi ƙasa da 100 ° C, ana iya kashe ruwan sanyaya na inductor.