Zotsatira za zinthu zosiyanasiyana zazitsulo ndizotani Kuchepetsa kulimba kwachitsulo?

(1) Mpweya (C) Mpweya umatsimikizira kuuma komwe kungapezeke pakutha. Mpweya wokhala ndi mpweya ndiwokwera ndipo kuzimitsa kolimba ndikokwera, koma ndikosavuta kuzimitsa ming’alu. Nthawi zambiri, w (C) amasankhidwa kukhala 0.30% mpaka 0.50%, ndipo kuwuma komwe kumapezeka motere ndi pafupifupi 50 mpaka 60HRC. Malire apamwamba amtengo wouma amangoletsedwa ndi mpweya. Kuchita kwatsimikizira kuti izi zili ndi mpweya pafupifupi 0.50%. Nthawi zina zimagwiritsidwa ntchito kwambiri. Mwachitsanzo, masikono amapangidwa ndi chitsulo ndi w (C) 0.80%, w (Cr) 1.8% ndi w (Mo) 0.25%. Chitsulo cha kaboni chomwe mulibe zinthu zowonjezera chimafuna kuzirala kwambiri, chifukwa chake chimasokonekera kwambiri, chimakhala ndi chizolowezi chong’ambika, ndipo chimakhala cholimba.

2) Silicon (Si) Kuphatikiza pakulimbitsa mphamvu ndi kuumitsa, silicon mu chitsulo imathanso kuchotsa gasi pazitsulo pakupanga zitsulo ndikusewera.

(3) Manganese (Mn) Manganese mu chitsulo amalimbitsa kuuma kwa chitsulo ndikuchepetsa kuzizira kovuta. Manganese amapanga yankho lolimba mu ferrite mukatenthedwa, lomwe limatha kulimbitsa mphamvu yachitsulo. Chitsulo cha manganese chimagwiritsidwa ntchito kwambiri pakakhala kuzama kwazitali kwambiri kuposa 4mm. Chifukwa imachepetsa kuzirala kovuta, kuuma koyunifolomu kumatha kupezeka pomwe zinthu zomwe siziziziririka sizokhazikika.

(4) Chromium (Cr) Popeza chromium mu chitsulo imatha kupanga ma carbides, ndikofunikira kuwonjezera kutentha kwanyengo ndikuwonjezera nthawi yotenthetsera, zomwe ndizosavuta pakuwumitsa. Koma chromium imapangitsa kulimba kwa chitsulo (kofanana ndi manganese), ndipo chromium chitsulo chimakhala ndi makina apamwamba kwambiri mu dziko lotsekedwa komanso lofatsa. Chifukwa chake, 40Cr ndi 45Cr nthawi zambiri amagwiritsidwa ntchito popanga magiya olemera ndi ma shaft shaft. M (Cr) muzitsulo zolimba kwambiri nthawi zambiri samapitilira 1.5%, ndipo apamwamba kwambiri samapitilira 2%. Pazifukwa zapadera, kuumitsa kwa induction kumatha kuchitidwanso w (Cr) ikakhala yochepera 17%, koma kutentha kwakukulu kotentha kumafunika, ndipo kutentha kotentha kumakhala pansi pa 1200T. Pakadali pano, ma carbides adzasungunuka msanga asanazimitsidwe.

(5) Aluminiyamu (Mo) Aluminiyamu yazitsulo imatha kusintha kulimba, ndipo zomwe zili mu molybdenum muzitsulo ndizochepa kwambiri.

(6) Sulfa (S) Sulufule wazitsulo amapanga sulfide. Mayesero awonetsa kuti zinthu za sulfure zikafupika, kutalika ndi kuchepetsedwa kwa dera kumathandizika, ndipo phindu lakulimba limakulitsidwa.

(7) Phosphorus (P) Phosphorus muzitsulo sizimapanga phosphide, koma ndizosavuta kuyambitsa tsankho lalikulu, chifukwa chake ndi chinthu choyipa.