Kodi pulasitiki yolimba kwambiri yosamva mphamvu ndi chiyani

Kumasulidwa nthawi: 2026-01-05

Gawa:

pulasitiki yamphamvu kwambiri yosamva kuvalandi mtundu wa zinthu zosaoneka ngati zokanira zomwe zimapangidwira kuti zigwiritsidwe ntchito potentha kwambiri, zowononga kwambiri, komanso zokokoloka kwambiri. Imakhala ndi pulasitiki yolimba, yomanga yabwino, yolimba kwambiri, komanso kukana kwamphamvu kwambiri, ndipo imagwiritsidwa ntchito kwambiri ngati chingwe chamkati cha zida zotentha kwambiri m'mafakitale monga mphamvu, zitsulo, simenti, ndi engineering yamankhwala.

Zida zopangira zida zapulasitiki zolimba kwambiri komanso zosavala:

Aggregates ndi ufa: High-alumina bauxite, corundum, silicon carbide, mchenga wa chromite, ndi zinthu zina zolimba zosavala zimasankhidwa kuti apange mafupa akuthupi, kudziwa kukana kuvala ndi kukana kutentha kwambiri.
Zomanga: Pali ma hydraulic binders (monga aluminate simenti) ndi zomangira mankhwala (monga phosphoric acid ndi phosphate), zomwe zingathe kuchiritsidwa kutentha kwa chipinda popanda kutentha kwapamwamba.
Zosakaniza: Onjezani zochepetsera madzi, mapulasitiki, ndi anti-cracking kuti muwonjezere kugwirira ntchito ndi kukana ming'alu pakumanga; phatikizani ulusi wachitsulo ndi ulusi wa ceramic kuti muwonjezere kukana komanso kukana kugwedezeka kwamafuta.

Makhalidwe ogwirira ntchito azinthu zapulasitiki zolimba kwambiri zosavala:

"Pulasitiki refractory zinthu":imatanthawuza zinthu zodzitchinjiriza zomwe zimawonetsa pulasitiki wabwino kutentha kwachipinda (zofanana ndi pulasitiki), ndipo zimatha kupangidwa kudzera m'njira monga ramming ndi zokutira, osafunikira kugwedezeka powumba.
"Mkulu mphamvu ndi kuvala kukana": Powonjezera aggregates olimba monga corundum, pakachitsulo carbide (SiC), mullite, ndi mkulu-alumina clinker, ndi kaphatikizidwe ndi mankwala, kashiamu aluminiyamu simenti, kapena organic binders, amakwaniritsa mkulu compressive mphamvu firiji/ kutentha (≥60 MPa pambuyo kuyanika pa 110 ≄8 pambuyo firiji, MPa 10 ≄8 firiji pambuyo firiji, 1350 ℃) ndi kuvala bwino kwambiri kukana (kuvala kutaya ≤5 cm³, bwino kwambiri kuposa zotayira wamba)

Kusiyana kwakukulu pakati pa pulasitiki wosamva kuvala wamphamvu kwambiri ndi pulasitiki wamba kuli mu:

Chigawo cholimbikitsira chosamva kuvala:Zida za pulasitiki zolimba kwambiri zosamva kuvala zimalimbikitsidwanso ndi zophatikizika zolimba kwambiri zosamva kuvala monga silicon carbide ndi corundum, kapena ulusi wosamva kuvala kwachitsulo, zomwe zimapangitsa kukana kuvala komwe kumakhala kokwera 2-3 kuposa zinthu zapulasitiki wamba.
Zizindikiro zamphamvu:Imawonetsa mphamvu zopondereza zapamwamba pazipinda zonse komanso kutentha kwambiri, zomwe zimapangitsa kuti zikhale zoyenera kugwira ntchito movutikira komanso zolemetsa zambiri. Mosiyana ndi izi, zida zapulasitiki wamba ndizoyenera kwambiri kutsekemera kwamafuta kapena zida zothandizira zokhala ndi zocheperako komanso zong'ambika.

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