A cikin bin maximizing da lifespan da amfani da halaye nagraphite crucibles, masana'antar mu ta gudanar da bincike mai zurfi da bincike a cikin samarwa da kuma aiki. Anan ga umarnin aiki don crucibles graphite:
Tsare-tsare na musamman don tsattsauran ra'ayi na graphite crucibles:
Guji tasirin inji kuma kar a faɗo ko bugi ƙugiya daga tsayi. Kuma kiyaye shi bushe da tafi da siffar danshi. Kada a taba ruwa bayan ya bushe kuma ya bushe.
Lokacin amfani, guje wa kunna harshen wuta kai tsaye zuwa gindin crucible. Bayyanawa kai tsaye ga harshen wuta na iya barin manyan baƙar fata.
Bayan rufe tanderun, cire duk wani abin da ya rage na aluminum ko jan karfe daga cikin crucible kuma kauce wa barin duk wani saura.
Yi amfani da abubuwan acidic (kamar juzu'i) a matsakaici don hana lalata da tsattsage na crucible.
Lokacin daɗa kayan aiki, guje wa bugun ƙugiya kuma a guji amfani da ƙarfin injina.
Ajiyewa da canja wuri na crucibles graphite:
Gilashin ginshiƙan graphite masu tsabta suna da damuwa da ruwa, don haka ya kamata a kiyaye su daga dampness da bayyanar ruwa.
Kula da guje wa lalacewar ƙasa. Kada ka sanya crucible kai tsaye a kasa; a maimakon haka, yi amfani da palette ko tari.
Lokacin matsar da crucible, kauce wa mirgina shi gefe a ƙasa. Idan ana buƙatar a jujjuya shi a tsaye, sanya kwali mai kauri ko zane a ƙasa don hana ɓarna ko ɓarna a ƙasa.
A lokacin canja wuri, kula na musamman don kar a faɗo ko bugi crucible.
Shigar da crucibles graphite:
Tsayin da ake ɗorawa (dandali mai ƙyalli) yakamata ya kasance yana da diamita iri ɗaya ko mafi girma da ƙasan crucible. Tsayin dandali ya kamata ya zama mafi girma fiye da bututun wuta don hana harshen wuta kai tsaye.
Idan ana amfani da tubalin da aka yi amfani da su don dandamali, tubalin madauwari sun fi dacewa, kuma ya kamata su kasance masu lebur ba tare da lankwasawa ba. A guji amfani da tubalin rabin ko mara daidaituwa, kuma ana ba da shawarar amfani da dandamalin graphite da aka shigo da su.
Sanya madaidaicin madaurin a tsakiyar narkewa ko annealing, kuma amfani da foda carbon, husk ash, ko auduga mai raɗaɗi a matsayin matashi don hana ƙugiya daga mannewa a tsaye. Bayan sanya crucible, tabbatar da daidaita shi (ta amfani da matakin ruhu).
Zabi ƙwanƙwasa masu dacewa waɗanda suka dace da tanderun, kuma kiyaye tazarar da ta dace (aƙalla (40mm) tsakanin katangar da bangon tanderun.
Lokacin amfani da ƙwanƙwasa tare da spout, barin sarari na kusan 30-50mm tsakanin spout da bulo mai jujjuyawa a ƙasa. Kada a sanya wani abu a ƙarƙashinsa, kuma yi amfani da auduga mai raɗaɗi don daidaita alaƙa tsakanin spout da bangon tanderu. Ya kamata katangar tanderun ta kasance tana da tubalin tubali (maki uku), sannan a sanya kwali mai kauri mai kauri kimanin 3mm a ƙarƙashin ƙugiya don ba da damar haɓakar zafi bayan dumama.
Preheating da bushewa na graphite crucibles:
Yi zafi da kumfa a kusa da tanderun mai na tsawon sa'o'i 4-5 kafin amfani da shi don taimakawa wajen cire danshi daga saman crucible.
Don sababbin ƙwanƙwasa, sanya gawayi ko itace a cikin kwandon kuma a ƙone shi kamar sa'o'i hudu don taimakawa wajen cire danshi.
Shawarwari na lokutan dumama don sabon crucible sune kamar haka:
0 ℃ zuwa 200 ℃: A hankali tada zafin jiki sama da awanni 4.
Don murhun mai: Ƙara yawan zafin jiki a hankali don 1 hour, daga 0 ℃ zuwa 300 ℃, kuma yana buƙatar 4hours daga 200 ℃ zuwa 300 ℃,
Ga wutar lantarki tanderu: bukatar 4 hours dumama lokaci daga 300 ℃ zuwa 800 ℃, sa'an nan 4 hours daga 300 ℃ zuwa 400 ℃. daga 400 ℃ zuwa 600 ℃, ƙara yawan zafin jiki da sauri da kuma kula da 2 hours.
Bayan an rufe murhun, lokutan sake dumama da aka ba da shawarar sune kamar haka:
Domin mai da wutar lantarki tanderu: Bukatar 1 hours dumama lokaci daga 0 ℃ zuwa 300 ℃. Bukatar lokacin dumama awa 4 daga 300 ℃ zuwa 600 ℃. Da sauri ƙara yawan zafin jiki zuwa matakin da ake so.
Kayayyakin caji:
Lokacin amfani da babban tsaftataccen tsaftataccen hoto, fara da ƙara ƙananan kayan kusurwa kafin ƙara manyan guda. Yi amfani da ƙwanƙwasa don a hankali da kuma a hankali sanya kayan cikin ƙugiya. A guji yin lodin kifin don hana karyawa.
Domin man tanderu, kayan za a iya kara bayan kai 300 ℃.
Domin wutar lantarki:
Daga 200 ℃ zuwa 300 ℃, fara ƙara kananan kayan. Daga 400 ℃ gaba, a hankali ƙara manyan kayan. Lokacin ƙara kayan aiki yayin ci gaba da samarwa, guje wa ƙara su a wuri ɗaya don hana iskar oxygenation a bakin da ba a iya gani ba.
Don insulation lantarki tanda, preheat zuwa 500 ℃ kafin zuba aluminum narke.
Kariya a lokacin amfani da graphite crucibles:
Yi amfani da kayan da hankali lokacin daɗa su a cikin ƙugiya, guje wa sanyawa mai ƙarfi don hana lalata ƙugiya.
Don crucibles ci gaba da amfani da su har tsawon sa'o'i 24, za a iya tsawaita rayuwarsu. A ƙarshen ranar aiki da kuma rufe tanderu, ya kamata a cire kayan da aka narkar da su a cikin crucible don hana ƙarfafawa da haɓakawa na gaba, wanda zai iya haifar da lalacewa ko raguwa.
Lokacin amfani da abubuwan narkewa (irin su FLLUX don aluminium alloys ko borax don gami da jan ƙarfe), yi amfani da su da ƙarfi don guje wa lalata bangon da ba a iya gani ba. Ƙara wakilai lokacin da aluminum narke yana da kusan mintuna 8 daga cikawa, a hankali yana motsawa don hana su mannewa ga bangon crucible.
Lura: Idan wakili mai narkewa ya ƙunshi fiye da 10% sodium (Na) abun ciki, ana buƙatar crucible na musamman da aka yi da takamaiman kayan aiki.
A ƙarshen kowace ranar aiki, yayin da ƙugiya ke ci gaba da zafi, da sauri cire duk wani ƙarfe da ke manne da bangon crucible don hana ragowar wuce gona da iri, wanda zai iya rinjayar canjin zafi da tsawaita lokacin rushewa, haifar da haɓakar zafi da yuwuwar fashewa.
Ana ba da shawarar duba yanayin crucible kusan kowane watanni biyu don kayan aluminium (mako-kowa don gami na jan karfe). Duba waje na waje kuma tsaftace ɗakin tanderun. Bugu da ƙari, jujjuya ƙwanƙwasa don tabbatar da ko da lalacewa, wanda ke taimakawa tsawaita tsawon rayuwar crucibles graphite masu tsafta.
Ta bin waɗannan umarnin aiki, masu amfani za su iya haɓaka tsawon rayuwa da ingancin kayan aikin su na graphite, suna tabbatar da kyakkyawan aiki a aikace-aikace daban-daban.
Lokacin aikawa: Jul-10-2023