Chinsinsi cha Graphite Silicon Carbide Crucibles: Chinsinsi cha High-Performance Metallurgy

M'dziko la metallurgy ndi sayansi yazinthu,cruciblendi chida chofunikira chosungunula ndi kuponya zitsulo. Mwa mitundu yosiyanasiyana ya ma crucibles, ma graphite silicon carbide (SiC) crucibles amadziwika chifukwa cha zinthu zake zapadera, monga kutenthetsa kwambiri kwamafuta, kukana kwamphamvu kwamafuta, komanso kukhazikika kwamphamvu kwamankhwala. M'nkhaniyi, tikambirana za maphikidwe a graphite SiC crucibles ndikuwona momwe kapangidwe kake kamathandizira pakuchita bwino kwawo pakutentha kwambiri.

The Basic Ingredients

Zigawo zazikulu za graphite SiC crucibles ndi flake graphite ndi silicon carbide. Flake graphite, yomwe nthawi zambiri imakhala 40% -50% ya crucible, imapereka matenthedwe abwino kwambiri komanso mafuta, omwe amathandiza kuti chitsulocho chimasulidwe mosavuta. Silicon carbide, yomwe imapanga 20% -50% ya crucible, ndiyomwe imapangitsa kuti crucible ikhale yosasunthika komanso kukhazikika kwamankhwala pamatenthedwe okwera.

Zowonjezera Zowonjezera Kugwira Ntchito Kwambiri

Kuti apititse patsogolo kutentha kwapamwamba komanso kukhazikika kwa mankhwala a crucible, zowonjezera zowonjezera zimawonjezeredwa ku Chinsinsi:

1. Elemental silicon powder (4% -10%): Imakulitsa mphamvu ya kutentha kwambiri komanso kukana kwa okosijeni kwa crucible.
2. Boron carbide ufa (1% -5%): Imawonjezera kukhazikika kwamankhwala komanso kukana zitsulo zowononga.
3. Dongo (5% -15%): Imagwira ntchito ngati chomangira ndikuwongolera mphamvu zamakina ndi kukhazikika kwamafuta a crucible.
4. Thermosetting binder (5% -10%): Imathandiza kumangiriza zigawo zonse pamodzi kuti zipange mgwirizano wogwirizana.

The High-End Formula

Pazinthu zomwe zimafuna magwiridwe antchito apamwamba kwambiri, mawonekedwe apamwamba a graphite crucible amagwiritsidwa ntchito. Njirayi imakhala ndi 98% graphite particles, 2% calcium oxide, 1% zirconium oxide, 1% boric acid, 1% sodium silicate, ndi 1% aluminium silicate. Zowonjezera izi zimapereka kukana kosayerekezeka ndi kutentha kwakukulu komanso malo amphamvu amankhwala.

Njira Yopangira

Kukonzekera kwa graphite SiC crucibles kumaphatikizapo ndondomeko yosamala. Poyamba, flake graphite ndi silicon carbide zimasakanizidwa bwino. Kenako, posakaniza silicon ufa, boron carbide ufa, dongo, ndi thermosetting binder zimawonjezeredwa kusakaniza. Chosakanizacho chimakanizidwa kukhala mawonekedwe pogwiritsa ntchito makina osindikizira ozizira. Potsirizira pake, ma crucibles opangidwa ndi sintered mu ng'anjo yotentha kwambiri kuti apititse patsogolo mphamvu zawo zamakina ndi kukhazikika kwa kutentha.

Mapulogalamu ndi Ubwino

Ma graphite SiC crucibles amagwiritsidwa ntchito kwambiri m'makampani opanga zitsulo posungunula ndi kuponyera zitsulo monga chitsulo, chitsulo, mkuwa, ndi aluminiyamu. Kutentha kwawo kwapamwamba kwambiri kumatsimikizira kutentha kwa yunifolomu ndikuchepetsa kugwiritsa ntchito mphamvu. Kutentha kwakukulu kwa kutentha kumachepetsa chiopsezo cha kusweka panthawi ya kusintha kwa kutentha, pamene kukhazikika kwawo kwa mankhwala kumatsimikizira chiyero cha chitsulo chosungunuka.

Pomaliza, njira yopangira ma graphite silicon carbide crucibles ndi kuphatikiza kosakanizika kwazinthu zomwe zimapereka kusinthasintha kwamafuta, kukana kugwedezeka kwamafuta, komanso kukhazikika kwamankhwala. Izi zimawapangitsa kukhala ofunikira kwambiri pantchito yazitsulo, komwe amatenga gawo lofunikira pakusungunula koyenera komanso kodalirika kwazitsulo.

Pomvetsetsa zigawo ndi kupanga mapangidwe a graphite SiC crucibles, mafakitale amatha kupanga zisankho zodziwikiratu pazomwe amagwiritsira ntchito, kuonetsetsa kuti akugwira ntchito bwino komanso kukhala ndi moyo wautali wazitsulo zawo. Pamene luso lamakono likupita patsogolo, kuwonjezereka kwina kwa njira zopangira ndi kupanga ma graphite SiC crucibles akuyembekezeredwa, kutsegulira njira yazitsulo zogwira mtima komanso zokhazikika.