Kupititsa patsogolo Ukadaulo wa Graphite Crucible Furnace Kuti Ugwire Ntchito Nthawi Yaitali komanso Mtengo Wabwino

Kupanga graphite crucible kwasintha kwambiri pakubwera kwaukadaulo waukadaulo wa isostatic, ndikuyika ngati njira yapamwamba kwambiri padziko lonse lapansi. Poyerekeza ndi njira zachikhalidwe zothamangitsira, kukanikiza kwa isostatic kumabweretsa ma crucibles okhala ndi mawonekedwe ofanana, kachulukidwe kwambiri, kugwiritsa ntchito mphamvu, komanso kukana kwamphamvu kwa okosijeni. Kugwiritsidwa ntchito kwa kuthamanga kwapamwamba pa kuumba kumawonjezera kwambiri mawonekedwe a crucible, kuchepetsa porosity ndipo pambuyo pake kumapangitsa kuti matenthedwe apangidwe ndi kusungunuka kwa dzimbiri, monga momwe tawonetsera pa Chithunzi 1. Mu chilengedwe cha isostatic, gawo lililonse la crucible limakumana ndi kuthamanga kwa yunifolomu kuumba, kuonetsetsa kusasinthasintha kwazinthu ponseponse. Njira imeneyi, monga momwe yasonyezedwera m’chithunzi 2, imaposa kachitidwe ka ramming kachikale, zomwe zimapangitsa kuti pakhale kusintha kwakukulu pakuchita bwino.

1. Ndemanga Yavuto

Chodetsa nkhawa chimabwera pankhani ya ng'anjo ya aluminiyamu yotchinjiriza ma waya opangira ma graphite crucibles, okhala ndi moyo pafupifupi masiku 45. Pambuyo pa masiku 20 okha ogwiritsidwa ntchito, kutsika kowoneka bwino kwa matenthedwe kumawonedwa, limodzi ndi ming'alu yaying'ono pamtunda wakunja wa crucible. M'magawo omaliza ogwiritsira ntchito, kutsika kwakukulu kwa matenthedwe kumawoneka, kumapangitsa kuti crucible ikhale yosasinthika. Kuonjezera apo, ming'alu yambiri ya pamwamba imayamba, ndipo kusinthika kumachitika pamwamba pa crucible chifukwa cha okosijeni.

Mukayang'ana ng'anjo yowotchayo, monga momwe chithunzi 3 chikusonyezera, maziko opangidwa ndi njerwa zosanjikizana amagwiritsidwa ntchito, ndi chinthu chotenthetsera chapansi pa waya wokanira chomwe chili 100 mm pamwamba pa maziko. Pamwamba pa crucible amamata ndi mabulangete a asbestos fiber, omwe amakhala mozungulira mamilimita 50 kuchokera m'mphepete mwakunja, ndikuwulula kukwapula kwakukulu mkati mwa nsonga ya crucible.

2. Zosintha Zatsopano Zamakono

Kupititsa patsogolo 1: Kukhazikitsidwa kwa Isostatic Pressed Clay Graphite Crucible (yokhala ndi Glaze Yotsika Kutentha kwa Oxidation Resistant)

Kugwiritsiridwa ntchito kwa crucible iyi kumakulitsa kwambiri ntchito yake mu ng'anjo zotchinjiriza za aluminiyamu, makamaka pankhani ya kukana kwa okosijeni. Ma graphite crucibles amakhala oxidize pa kutentha pamwamba pa 400 ℃, pamene kutentha kwa ng'anjo za aluminiyamu kumakhala pakati pa 650 ndi 700 ℃. Ma Crucible okhala ndi glaze osamva kutentha kwa okosijeni amatha kuchedwetsa bwino makutidwe ndi okosijeni pamatenthedwe opitilira 600 ℃, kuwonetsetsa kuti matenthedwe amatalika kwambiri. Panthawi imodzimodziyo, imalepheretsa kuchepetsa mphamvu chifukwa cha okosijeni, kukulitsa moyo wa crucible.

Kupititsa patsogolo 2: Chiyambi cha Ng'anjo Yogwiritsa Ntchito Graphite ya Zida Zomwezo monga Crucible

Monga chithunzi 4, kugwiritsa ntchito graphite maziko a zinthu zomwezo monga crucible kuonetsetsa kutentha yunifolomu pansi crucible pansi pa kutentha ndondomeko. Izi zimachepetsa kutentha komwe kumabwera chifukwa cha kutentha kosafanana komanso kumachepetsa chizolowezi cha ming'alu yobwera chifukwa cha kutentha kosafanana. Maziko odzipatulira a graphite amatsimikiziranso kuthandizira kokhazikika kwa crucible, kugwirizanitsa ndi pansi pake ndi kuchepetsa fractures zomwe zimayambitsa kupsinjika maganizo.

Kupititsa patsogolo 3: Zowonjezera Zomangamanga Zam'deralo za Ng'anjo (Chithunzi 4)

1. Kupititsa patsogolo m'mphepete mwa chivundikiro cha ng'anjo, kuteteza kuti zisavale pamwamba pa crucible komanso kumawonjezera kusindikiza kwa ng'anjo.
2. Kuwonetsetsa kuti waya wokana ndi wofanana ndi pansi pa crucible, kutsimikizira kutentha kwapansi kokwanira.
3. Kuchepetsa mphamvu ya zosindikizira za bulangeti la ulusi wa pamwamba pa kutentha kwa crucible, kuonetsetsa kutentha kokwanira pamwamba pa crucible komanso kuchepetsa zotsatira za oxidation yotsika kwambiri.

Kupititsa patsogolo 4: Kuyeretsa Njira Zogwiritsira Ntchito

Musanagwiritse ntchito, tenthetsani crucible mu ng'anjo pa kutentha kosachepera 200 ℃ kwa maola 1-2 kuti muchotse chinyezi. Mukatenthetsa, onjezerani kutentha kwa 850-900 ℃, kuchepetsa nthawi yokhala pakati pa 300-600 ℃ kuti muchepetse makutidwe ndi okosijeni mkati mwa kutentha uku. Kenako, tsitsani kutentha kwa kutentha kwa ntchito ndikuyambitsa aluminiyamu yamadzimadzi kuti igwire ntchito bwino.

Chifukwa cha kuwonongeka kwa zinthu zoyenga pa crucibles, tsatirani ndondomeko yoyenera yogwiritsira ntchito. Kuchotsa slag nthawi zonse ndikofunikira ndipo kuyenera kuchitidwa pamene crucible ikutentha, chifukwa kuyeretsa slag kumakhala kovuta. Kuyang'ana mosamala za kutentha kwa crucible ndi kukhalapo kwa ukalamba pamakoma a crucible ndizofunikira kwambiri pakapita nthawi. Zosintha panthawi yake ziyenera kuchitidwa kuti mupewe kutaya mphamvu kosafunikira komanso kutayikira kwamadzimadzi a aluminiyamu.

3. Zotsatira Zabwino

Kutalika kwa moyo wa crucible wowongoka ndi wochititsa chidwi, kusunga kutentha kwa nthawi yayitali, popanda kung'ambika pamwamba. Ndemanga za ogwiritsa ntchito zikuwonetsa magwiridwe antchito, osati kungochepetsa mtengo wopangira komanso kupititsa patsogolo luso la kupanga.

4. Mapeto

1. Mitsuko ya graphite ya Isostatic imaposa zida zachikhalidwe potengera magwiridwe antchito.
2. Kapangidwe ka ng'anjo iyenera kufanana ndi kukula ndi kapangidwe ka crucible kuti igwire bwino ntchito.
3. Kugwiritsa ntchito moyenera crucible kumatalikitsa moyo wake, ndikuwongolera bwino ndalama zopangira.

Kupyolera mu kafukufuku wosamala komanso kukhathamiritsa kwaukadaulo wa ng'anjo ya crucible, kukwera kwa magwiridwe antchito ndi moyo wautali zimathandizira kwambiri pakuchulukirachulukira kwa kupanga komanso kupulumutsa mtengo.