Gray Cast Iron VS Ductile Cast Iron

Iron imvi ndi ductile iron zitha kuponyedwaMchenga kuponyera ndondomeko, njira yopangira zipolopolo (mchenga wokutidwa ndi utomoni), kuponyera thovu kutayika, kuponyera vacuum ndi kuponyera ndalama. Kuponya mchenga ndi imodzi mwa mitundu yotchuka komanso yosavuta yoponya. Kuponyera mchenga kumalola magulu ang'onoang'ono kusiyana ndi kupanga nkhungu kosatha komanso pamtengo wokwanira. Sikuti njirayi imalola opanga kupanga zinthu zotsika mtengo, koma palinso zopindulitsa zina zopangira mchenga, monga ntchito zazing'ono kwambiri. Kuponyera mchenga kumathandizanso kuti zitsulo zambiri zipangidwe, malingana ndi mtundu wa mchenga womwe umagwiritsidwa ntchito popanga nkhungu. Njira yopangira zipolopolo imatchedwanso njira yoponyera mchenga wophimbidwa kale, zopangira zipolopolo zotentha kapena njira yoponyera pachimake. Zomwe zimapangidwira kwambiri ndi mchenga wa phenolic resin, womwe umakhala wokwera mtengo kuposa mchenga wobiriwira ndi furan resin. Kuphatikiza apo, mchengawu sungagwiritsidwenso ntchito. Zopangira zipolopolo zopangira chitsulo zimakhala ndi ndalama zambiri kuposa kuponya mchenga. Komabe, azipolopolo akamaumba kuponyera zigawoali ndi zabwino zambiri monga kulolerana kocheperako, mawonekedwe abwino apamwamba komanso zolakwika zochepa zoponya.

Komabe, pali kusiyana kwina pakati pa magawo oponyera chitsulo chotuwa ndi zitsulo zoponyera chitsulo.Gray Iron Sand CastingNthawi zambiri amagwiritsidwa ntchito popanga mawonekedwe ovuta omwe angakhale ovuta kapena opanda ndalama kupanga ndi njira zina zopangira zitsulo. Chifukwa cha makina ake osavuta, mphamvu zopondereza kwambiri, kukhathamiritsa kwamafuta abwino komanso kuyamwa bwino kwa kugwedezeka, chitsulo chotuwira ndi chimodzi mwazitsulo zomwe zimagwiritsidwa ntchito kwambiri kwa nthawi yayitali, ngakhale pakupanga makampani apano. Mpweya wa carbon ndiye chinthu chofunikira kwambiri pa chitsulo chotuwira (nthawi zambiri 2% mpaka 4%) kuti apange mphamvu zowonongeka ndi makina. Chitsulo chosungunuka chikalimbitsa mpweya wina wa kaboni ngati graphite, ndikupanga tinthu tating'onoting'ono tating'ono tating'ono tating'ono tating'ono tating'ono tazitsulo tating'onoting'ono timene timapangitsa kuti chitsulocho chikhale chofunikira kwambiri, ma flakes amasokoneza kapangidwe ka kristalo komwe kumapangitsa kuti chitsulo chisasunthike.

Kukula kwa chitsulo cha imvi kumayendetsedwa makamaka ndi mphamvu zambiri. M'mbuyomu, njira yayikulu yopititsira patsogolo magwiridwe antchito a chitsulo chotuwirapo inali inoculation. M'zaka zaposachedwa, njira yayikulu tsopano ndiyo kuyang'ana pa alloying, ndipo kuti apititse patsogolo ntchito yoponya, ambiri opanga chitsulo chotuwira amagwiritsa ntchito chitsulo chosungunuka chokhala ndi mpweya wofanana kwambiri. Izi ndizofunikira makamaka kwa chitsulo chochepa cha alloy cast. Chifukwa chake, chitsulo chonyezimira ndi chinthu choyenera kupanga zitsulo zopangira chitsulo cha chipika cha injini, nyumba zamakina, makina oyambira, zolemera zowerengera, zida za sitovu, zida zowotchera, zipolopolo zamapope ndi zina zotero.

Ductile iron imapereka kusinthika kwapangidwe ndikuchepetsa mtengo wopangira poyerekeza ndi zinthu zopangidwa ndi welded ndi zopanga. Mu microstructure ya chitsulo cha ductile, graphite imapanga tinthu tating'onoting'ono m'malo mwa flakes, motero imalepheretsa kupanga ming'alu ndikupereka ductility yowonjezera yomwe imapatsa alloy dzina lake. Chitsulo chachitsulo chimakhala ndi mphamvu zolimba kwambiri komanso zolimba zofanana ndi chitsulo.ductile iron castingsali ndi makhalidwe ambiri, komabe, si nthawi zonse zotsika mtengo m'malo mwa ma aloyi ena achitsulo. Kuphatikiza apo, zitsulo zama ductile zimagwiritsidwa ntchito kwambiri m'mafakitale ambiri opanga, kuphatikiza ulimi, magalimoto, ma hydraulics, masitima apamtunda, magalimoto amalonda ndi mafakitale apamlengalenga.