Kodi mungatani kuti musinthe mawonekedwe azitsulo zazitsulo?
Chitsulo chosungunuka ndichitsulo chosakanizika ndi chitsulo chomwe gawo lake ndi lotuwa. Kudzera pakuwongolera kapangidwe kake ndi kulimba kwake, mpweya umapezeka makamaka ngati flake graphite. Kapangidwe kazitsulo kakapangidwe kazitsulo zachitsulo kamakhala ndi graphite ya flake, chitsulo chosanjikiza ndi eutectic yambewu.
Kukhalapo kwa flake graphite mu imvi chitsulo chosungunula kumawononga kupitilirabe kwazitsulo ndikupangitsa chitsulo kuponyera chitsulo kukhala chowuma. Koma imvi zachitsulo ndichimodzi mwazinthu zoyambirira komanso zomwe zimagwiritsidwa ntchito kwambiri. Chitsulo chosungunuka chili ndi zinthu zambiri. Kwa nthawi yayitali, pakupanga, tafotokoza mwachidule zinthu zina zomwe zingathandize kuti mphamvu yolimba ya chitsulo ipangidwe. Nthawi zina, titha kusintha ntchito kudula, kuvala kukana ndi mantha mayamwidwe ntchito ya chitsulo imvi pulasitala.
Pakapangidwe kake, mitundu yambiri yazitsulo imapangidwa ndi hypoeutectic. Chifukwa chake, kuti muwongolere kulimba kwake, mfundo zotsatirazi ziyenera kuchitidwa momwe zingathere:
1) Tsimikizani kuti chitsulo chakuda chimakhala ndi ma dendrite oyambira kwambiri pakukhazikika
2) Chepetsani kuchuluka kwa eutectic graphite ndikupangitsa kuti igawidwe mofanana ndi mtundu wa A graphite
3) Wonjezerani kuchuluka kwa masango a eutectic
4) Pakati pa kusintha kwa austenite eutectoid, onse amasandulika kukhala pearlite matrix yabwino
Pakapangidwe kazitsulo kazitsulo kazitsulo, nthawi zambiri timagwiritsa ntchito njira izi kuti tikwaniritse zotsatirazi:
1) Sankhani mankhwala oyenera
2) Sinthani kapangidwe kake
3) Kutentha kwambiri chitsulo chosungunuka
4) Chithandizo cha kutemera
5) Kutsata kapena kutsata pang'ono
6) Chithandizo cha kutentha
7) Lonjezerani kuzirala kwakanthawi kosintha kwa eutectoid
Zomwe zingatengedwe zimadalira mtundu wa zitsulo zoponyedwa ndi imvi, zomwe zimafunikira komanso momwe zinthuzo zimapangidwira. Komabe, nthawi zambiri kumakhala kofunikira kutenga magawo awiri kapena kupitilira apo kuti akwaniritse ntchito ya chitsulo chosungunula.
Post nthawi: Dis-28-2020