Haɓaka Fasahar Furnace Mai Faɗar Graphite don Tsawan Ayyuka da Ƙarfin Kuɗi

Samar da ginshiƙan ginshiƙi ya samo asali sosai tare da zuwan fasahar latsawa ta isostatic, wanda ke nuna shi a matsayin fasaha mafi ci gaba a duniya. A kwatankwacin hanyoyin gargajiya na gargajiya, latsa sakamako mai tsinkaye a cikin ciyayi tare da kayan rubutu, da yawa, ƙarfin makamashi, kuma haɓaka ƙarfin oxidation. Aikace-aikacen babban matsin lamba a lokacin gyare-gyaren yana inganta mahimmancin rubutun crucible, rage porosity kuma daga baya yana haɓaka haɓakawar thermal da juriya na lalata, kamar yadda aka kwatanta a cikin Hoto 1. A cikin yanayi mai banƙyama, kowane ɓangare na crucible yana fuskantar matsa lamba na gyare-gyaren uniform, yana tabbatar da daidaiton kayan aiki a ko'ina. Wannan hanyar, kamar yadda aka nuna a hoto na 2, ta fi tsarin ramuwar gayya na gargajiya, wanda ke haifar da gagarumin ci gaba a cikin babban aiki.

1. Maganar Matsala

Damuwa ta taso a cikin mahallin wutar lantarki mai juriya ta alluminoy ta hanyar amfani da guraben faifan hoto, tare da tsawon rayuwa na kusan kwanaki 45. Bayan kwanaki 20 kawai na amfani, ana lura da raguwar ƙarancin zafin jiki, tare da ƙananan fashe-fashe a saman saman crucible. A cikin matakai na gaba na amfani, an sami raguwa mai tsanani a cikin yanayin zafin zafi, wanda ke mayar da crucible kusan mara amfani. Bugu da ƙari, fashe-fashe da yawa suna tasowa, kuma canza launin yana faruwa a saman crucible saboda oxidation.

Bayan duba tanderun da ke murƙushewa, kamar yadda aka nuna a hoto na 3, ana amfani da wani tushe da ya ƙunshi tubalin da aka ɗora, tare da mafi ƙarancin dumama na wayar juriya mai nisan mm 100 sama da tushe. An rufe saman saman crucible ta amfani da bargo na fiber asbestos, wanda aka sanya shi a kusa da 50 mm daga gefen waje, yana nuna ƙazanta mai mahimmanci a gefen ciki na saman crucible.

2. Sabbin Ingantattun Fasaha

Haɓakawa 1: Ƙarfafa Ƙaƙƙarfan Clay Graphite Crucible (tare da Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarfafa)

Yin amfani da wannan crucible yana haɓaka aikace-aikacensa sosai a cikin tanda na alloy na aluminum, musamman dangane da juriya na iskar shaka. Graphite crucibles yawanci oxidize a yanayin zafi sama da 400 ℃, yayin da rufin zafin jiki na aluminum gami tanderu jeri tsakanin 650 da kuma 700 ℃. Crucibles tare da ƙarancin zafin jiki mai jurewa oxidation na iya yadda ya kamata ya rage tsarin iskar shaka a yanayin zafi sama da 600 ℃, yana tabbatar da tsawaita kyakkyawan halayen thermal. A lokaci guda, yana hana raguwar ƙarfi saboda iskar oxygen, yana ƙara tsawon rayuwar crucible.

Haɓakawa 2: Tushen Tanderu Yin Amfani da Zane-zane na Abu ɗaya da Crucible

Kamar yadda aka nuna a hoto na 4, ta yin amfani da tushe mai hoto na kayan abu ɗaya da crucible yana tabbatar da dumama ƙasan crucible iri ɗaya yayin aikin dumama. Wannan yana rage ƙarancin zafin jiki wanda ke haifar da rashin daidaituwar dumama kuma yana rage ɗabi'ar faɗuwa sakamakon rashin daidaituwar dumama ƙasa. Har ila yau, ginshiƙin faifan da aka keɓe yana ba da garantin tsayayye na goyan baya ga crucible, daidaitawa tare da ƙasansa da kuma rage raunin raunin da ya haifar da damuwa.

Ingantawa 3: Haɓaka Tsarin Gida na Tanderu (Hoto na 4)

1. Ingantacciyar gefen murfin murfin tanderun, yadda ya kamata yana hana lalacewa a saman crucible kuma yana haɓaka hatimin tanderu sosai.
2. Tabbatar da wayar juriya tayi daidai da ƙasan crucible, yana ba da tabbacin isassun dumama ƙasa.
3. Rage tasirin babban abin rufe bargo na fiber akan dumama, tabbatar da isasshen dumama a saman crucible da rage tasirin iskar iska mai ƙarancin zafin jiki.

Haɓakawa 4: Tace Tsari-Tsarin Amfani Mai Kaya

Kafin amfani, preheat crucible a cikin tanderu a yanayin zafi kasa da 200 ℃ na 1-2 hours don kawar da danshi. Bayan preheating, da sauri ɗaga zafin jiki zuwa 850-900 ℃, rage girman lokacin zama tsakanin 300-600 ℃ don rage hadawan abu da iskar shaka a cikin wannan yanayin zafin jiki. Daga baya, rage zafin jiki zuwa zafin aiki kuma gabatar da kayan ruwa na aluminum don aiki na yau da kullun.

Saboda lahani na abubuwan tacewa akan crucibles, bi ingantattun ka'idojin amfani. Cire slag na yau da kullun yana da mahimmanci kuma yakamata a yi shi lokacin da crucible yayi zafi, kamar yadda tsaftacewa slag ya zama ƙalubale in ba haka ba. Duban tsanaki na ma'aunin zafin jiki na crucible da kasancewar tsufa akan bangon crucible yana da mahimmanci a cikin matakai na gaba na amfani. Ya kamata a yi canje-canje na lokaci don guje wa asarar makamashi mara amfani da ɗigon ruwa na aluminum.

3. Sakamakon Ingantawa

Tsawancin tsawon rayuwar ingantacciyar crucible abin lura ne, kula da yanayin zafi na tsawon lokaci mai tsawo, ba tare da fashewar ƙasa ba. Bayanin mai amfani yana nuna ingantaccen aiki, ba kawai rage farashin samarwa ba har ma yana haɓaka ingantaccen samarwa.

4. Kammalawa

1. Isostatic matsi lãka graphite crucibles fi na gargajiya crucibles cikin sharudda.
2. Tsarin tanderun ya kamata ya dace da girman da tsarin crucible don kyakkyawan aiki.
3. Amfani da crucible daidai yana ƙara tsawon rayuwarsa, yana sarrafa ƙimar samarwa yadda ya kamata.

Ta hanyar bincike mai zurfi da inganta fasahar tanderu, ingantattun ayyuka da tsawon rayuwa suna ba da gudummawa sosai ga haɓaka haɓakar samarwa da tanadin farashi.