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  • Chitsulo chosapanga dzimbiri chokhudzana ndi chidziwitso

    Mauna osapanga dzimbiri achitsulo ndi omwe amagwiritsidwa ntchito kwambiri, omwe amagwiritsidwa ntchito kwambiri, komanso ma waya akulu kwambiri pamsika. Anthu ambiri amatchedwa zosapanga dzimbiri mauna makamaka amatanthauza zosapanga dzimbiri zitsulo mauna.

    Choyambirira, tiyeni timvetsetse kukopa kwa zinthu zingapo zazikulu pazitsulo zosapanga dzimbiri pakugwiritsa ntchito chitsulo chosapanga dzimbiri:

    1. Chromium (Cr) ndiye chinthu chachikulu chomwe chimatsimikizira kukana kwazitsulo kwazitsulo zosapanga dzimbiri. Dzimbiri lazitsulo lagawanika ndi dzimbiri losakhala mankhwala. Kutentha kwambiri, chitsulo chimagwira mwachindunji ndi mpweya m'mlengalenga kuti apange oxides (dzimbiri), yomwe ndi dzimbiri la mankhwala; kutentha, kutentha kumeneku sikutulutsa mankhwala. Chromium ndiyosavuta kupanga kanema wonenepa kwambiri pakatikati ka oxidizing. Kanema wongodutsayo ndi wolimba komanso wathunthu, ndipo ndi wolimba kwambiri pachitsulo, kulekanitsa kwathunthu maziko ndi sing'anga, potero kumapangitsa kukana kwa dzimbiri kwa aloyi. 11% ndiye malire otsika kwambiri a chromium pazitsulo zosapanga dzimbiri. Zitsulo zokhala ndi chromium zosakwana 11% nthawi zambiri sizitchedwa chitsulo chosapanga dzimbiri.

    2. Nickel (Ni) ndi chinthu chabwino kwambiri chosagwira dzimbiri komanso chinthu chachikulu chomwe chimapanga chitsulo. Nickel ikawonjezedwa pazitsulo zosapanga dzimbiri, kapangidwe kake kamasintha kwambiri. Monga faifi tambala mu zosapanga dzimbiri ukuwonjezeka, austenite zidzawonjezeka, ndi dzimbiri kukana, mkulu kutentha kukana, ndi workability wa zosapanga dzimbiri zingawonjezere, potero kusintha ozizira ntchito ndondomeko ntchito ya chitsulo. Chifukwa chake, chitsulo chosapanga dzimbiri chokhala ndi faifi tambala ndichabwino kwambiri kujambula waya wabwino ndi waya yaying'ono.

    3. Molybdenum (Mo) amatha kukonza kukana kwazitsulo kwazitsulo zosapanga dzimbiri. Kuphatikiza kwa molybdenum kuzitsulo zosapanga dzimbiri kumatha kupititsa patsogolo pazitsulo zosapanga dzimbiri, potero kumapangitsanso kukana kwazitsulo kosapanga dzimbiri. Molybdenum sangapange mpweya mu chitsulo chosapanga dzimbiri kuti muchepetse molybdenum, potero kumathandizira kulimba kwazitsulo zosapanga dzimbiri.

    4. Mpweya (C) umaimiridwa ndi "0" muzitsulo zosapanga dzimbiri. "0" amatanthauza kuti mpweya wokhala ndi mpweya wocheperako kapena wofanana ndi 0.09%; "00" amatanthauza kuti mpweya wokhala ndi mpweya wocheperako kapena wofanana ndi 0.03%. Kuchuluka kwa mpweya kumachepetsa kukana kwazitsulo kosapanga dzimbiri, koma kumatha kuonjezera kuuma kwazitsulo zosapanga dzimbiri.

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    Pali mitundu yambiri yazitsulo zosapanga dzimbiri, kuphatikiza austenite, ferrite, martensite ndi duplex zosapanga dzimbiri. Chifukwa austenite ili ndi magwiridwe antchito abwino kwambiri, siyopanda maginito ndipo imakhala yolimba kwambiri komanso yapulasitiki, imagwiritsidwa ntchito pokonza mauna. Chitsulo chosapanga dzimbiri cha Austenitic ndiye waya wabwino kwambiri wosapanga dzimbiri. Chitsulo chosapanga dzimbiri cha Austenitic chili ndi 302 (1Cr8Ni9), 304 (0Cr18Ni9), 304L (00Cr19Ni10), 316 (0Cr17Ni12Mo2), 316L (00Cr17Ni14Mo2), 321 (0Cr18Ni9Ti) ndi zina. Tikayang'ana zomwe zili ndi chromium (Cr), faifi tambala (Ni), ndi molybdenum (Mo), 304 ndi 304L waya zili ndi magwiridwe antchito abwino ndi kukana kwa dzimbiri, ndipo pano ndi waya wokhala ndi zingwe zazikulu kwambiri zosapanga dzimbiri; 316 ndi 316L muli faifi tambala yayikulu, ndipo Molybdenum, ndioyenera kwambiri kujambula kwa mawaya abwino, ndipo ili ndi kukana kwazitsulo komanso kukana kutentha kwambiri. Mauna okhathamira kwambiri ndiosiyana ndi izi.

    Kuphatikiza apo, tikufunika kukumbutsa anzathu za mauna opanga ma waya kuti zosapanga dzimbiri zitsulo waya zimakhudza nthawi. Pambuyo poyikidwa kutentha kwapakati kwakanthawi, kupsinjika kwa mapangidwe kumachepetsa, motero waya wosapanga dzimbiri pakapita nthawi ndi bwino kuugwiritsa ntchito ngati choluka.

    Chifukwa mauna zosapanga dzimbiri ali ndi makhalidwe a kukana asidi, kukana soda, kutentha kwambiri kukana, mphamvu kwamakokedwe ndi kukana kumva kuwawa, makamaka oyenera tizilombo mosamala ndi sefa sefa pansi asidi ndi zinthu zachilengedwe soda. Mwachitsanzo, msika wamafuta umagwiritsidwa ntchito ngati chovala chamatope, makampani opanga ma fiber amagwiritsidwa ntchito ngati fyuluta, makina opangira ma electroplating amagwiritsidwa ntchito ngati chojambula cha pickling, komanso zitsulo, labala, malo othamangitsira, magulu ankhondo, mankhwala, chakudya ndi mafakitale ena amagwiritsidwa ntchito kupangira mafuta ndi madzi komanso kupatukana ndi makanema ena.


    Post nthawi: Jul-23-2021