Ta yaya fasahar rufewa ta electrodes na graphite (kamar su murfin hana oxidation) za ta iya tsawaita tsawon lokacin aikinsu?

Fasahar rufewa ta electrodes na graphite, musamman murfin hana tsufa, tana tsawaita tsawon rayuwar aikinsu ta hanyoyi daban-daban na kimiyyar lissafi. An bayyana manyan ƙa'idodi da hanyoyin fasaha kamar haka:

I. Manyan hanyoyin Rufin Antioxidant

1. Ware Gas Mai Haɗaka
A ƙarƙashin yanayin zafi mai yawa, saman lantarki na graphite na iya kaiwa 2,000–3,000°C, wanda ke haifar da mummunan halayen iskar shaka tare da iskar shaka ta yanayi (C + O₂ → CO₂). Wannan yana wakiltar kashi 50–70% na amfani da gefen bangon lantarki. Rufin hana iskar shaka yana samar da yadudduka masu yawa na yumbu ko ƙarfe-yumbu don toshe hanyar iskar shaka da matrix na graphite yadda ya kamata. Misali:

Rufin RLHY-305/306: Yi amfani da tsarin kifin nano-yumbu don ƙirƙirar hanyar sadarwa ta gilashin a yanayin zafi mai yawa, rage yawan yaduwar iskar oxygen da sama da kashi 90% da kuma tsawaita rayuwar lantarki da kashi 30-100%.

Rufin Aluminate-Aluminum Mai Launi Da Yawa: Yi amfani da feshin harshen wuta don gina tsarin gradient. Layer ɗin aluminum na waje yana jure yanayin zafi sama da 1,500°C, yayin da Layer ɗin silicon na ciki ke kula da wutar lantarki, yana rage yawan amfani da electrode da kashi 18-30% a cikin kewayon 750-1,500°C.

2. Warkarwa da Kai da Juriyar Girgizar Zafi
Dole ne a yi amfani da murfin da ke jure wa matsin zafi daga maimaita zagayowar faɗaɗawa/matsewa. Zane-zane na zamani suna samun gyara ta hanyar:

Foda ta Ceramic ta Nano-Oxide-Graphene Composites: Suna samar da fina-finan oxide masu yawa a lokacin da ake yin oxidation a matakin farko don cike ƙananan fasa da kuma kiyaye ingancin shafi.

Tsarin Bilayer Polyimide-Boride: Tsarin polyimide na waje yana samar da rufin lantarki, yayin da layin borode na ciki yana haifar da fim mai kariya mai sarrafawa. Tsarin modulus mai laushi (misali, raguwa daga 18 GPa a layin waje zuwa 5 GPa a layin ciki) yana rage matsin lamba na zafi.

3. Ingantaccen Gudun Iskar Gas da Hatiminsa
Ana haɗa fasahar shafa fenti da sabbin abubuwa na tsarin gini, kamar:

Tsarin Rami Mai Rami: Tsarin ƙananan ramuka a cikin na'urorin lantarki, tare da hannayen riga masu kariya daga roba mai siffar annular, suna haɓaka hatimin haɗin gwiwa da rage haɗarin iskar shaka a cikin gida.

Tsarin Rufewar Injin: Yana shiga cikin ruwan da ke shiga cikin ramukan lantarki na SiO₂ (≤25%) da Al₂O₃ (≤5.0%), yana samar da wani Layer mai kariya na 3-5 μm wanda ke sau uku juriya ga tsatsa.

II. Sakamakon Amfani da Masana'antu

1. Injin Karfe na Wutar Lantarki (EAF)

Rage Yawan Amfani da Electrode a kowace Tan na Karfe: Electrodes da aka yi wa magani da sinadarin antioxidant suna rage yawan amfani daga kilogiram 2.4 zuwa kilogiram 1.3–1.8 a kowace tan, raguwar kashi 25–46%.

Ƙarancin Amfani da Makamashi: Ƙarfin juriyar rufi yana raguwa da kashi 20-40%, wanda ke ba da damar ƙaruwar yawan wutar lantarki da kuma rage buƙatun diamita na lantarki, wanda ke ƙara rage amfani da makamashi.

2. Samar da Sinadarin Silicon Mai Nutsewa a Cikin Wutar Lantarki (SAF)

Amfani da na'urar lantarki mai ƙarfi: Yawan amfani da na'urar lantarki ta silicon a kowace tan yana raguwa daga kilogiram 130 zuwa ~100 kg, raguwar ~30%.

Ingantaccen Tsarin Gine-gine: Yawan girma ya kasance sama da 1.72 g/cm³ bayan awanni 240 na ci gaba da aiki a 1,200°C.

3. Aikace-aikacen Tanderu Mai Juriya

Dorewa Mai Girma: Na'urorin lantarki da aka yi wa magani suna nuna tsawon rai na kashi 60% a 1,800°C ba tare da lalata ko tsagewar murfin ba.

III. Sigar Fasaha da Kwatanta Tsarin Aiki

IV. Binciken Fasaha da Tattalin Arziki

1. Farashi-Fa'ida
Maganin shafawa yana ɗauke da kashi 5-10% na jimlar kuɗin lantarki amma yana ƙara tsawon lokacin sabis da kashi 20-60%, wanda ke rage farashin lantarki kai tsaye a kowace tan na ƙarfe da kashi 15-30%. Yawan amfani da makamashi yana raguwa da kashi 10-15%, wanda hakan ke ƙara rage yawan kuɗin samarwa.

2. Fa'idodin Muhalli da zamantakewa

Rage yawan maye gurbin lantarki yana rage ƙarfin aiki da haɗarin aiki (misali, ƙonewa mai zafi).

Yana daidaita da manufofin adana makamashi, yana rage fitar da hayakin CO₂ da ~0.5 tan a kowace tan na ƙarfe ta hanyar rage yawan amfani da lantarki.

Kammalawa

Fasahar shafa electrode ta Graphite ta kafa tsarin kariya mai matakai da yawa ta hanyar warewar jiki, daidaita sinadarai, da inganta tsarin, wanda hakan ke ƙara ƙarfin juriya a yanayin zafi mai yawa da iskar oxygen. Hanyar fasaha ta samo asali daga shafa mai layi ɗaya zuwa tsarin haɗaka da kayan warkar da kai. Ci gaban da ake samu a nan gaba a fasahar nano da kayan da aka kimanta za su ƙara haɓaka aikin shafa, suna ba da mafita mafi inganci ga masana'antun da ke da yanayin zafi mai yawa.