Amalungu olwakhiwo olusekwe kwintsimbi yomgubo ngamalungu olwakhiwo enziwe ngomgubo wetekhnoloji yesinyithi ngomgubo wentsimbi okanye umgubo wentsimbi njengeyona mathiriyeli ikrwada.Iimfuno zolu hlobo lwamacandelo kufuneka zibe neempawu ezifanelekileyo ngokwaneleyo zoomatshini, ukuxhathisa ukunxiba, ukusebenza kakuhle komatshini, kwaye ngamanye amaxesha ubushushu kunye nokuxhathisa ukubola.Iindawo ezisekelwe kwintsimbi yomgubo wesinyithi zisetyenziswa kakhulu kwiinkalo ezahlukeneyo zoqoqosho lwesizwe.Ngokukodwa kwishishini leemoto, i-60% ukuya kwi-70% ye-powder metallurgy-based iron-based parts kumazwe aphuhlileyo asetyenziswa kwiimoto ezifana neecamshafts, izihlalo zevalvu ephumayo, ii-impellers zempompo yamanzi kunye nezixhobo ezahlukeneyo.

Iimpawu ze-powder metallurgy iron-based partiture parts(2) I-Porosity.Xa kuthelekiswa neentsimbi ezishinyeneyo, intsimbi esekwe ngumgubo wesinyithi iindawo ezisasazeke ngokulinganayo.Iipores ezisasazwa ngokulinganayo zinokuphelisa i-oyile yokuthambisa ukuze kuphuculwe iipropati ezichasene ne-friction yezinto eziphathekayo, kwaye i-pores ye-spherical esasazwa ngokulinganayo nayo inceda ukuxhathisa ukukhathala kwamacandelo phantsi kwemeko yeempembelelo ezininzi ezinamandla amancinci.Nangona kunjalo, ii-pores zinokunciphisa iipropathi zoomatshini bezinto ezinje ngokuqina kokuqina, ubude emva kokwaphuka, kunye nokuqina kwempembelelo, kwaye kuchaphazele ukuxhathisa kwe-corrosion, ukuhanjiswa kwe-thermal, ukuhanjiswa kombane, kunye nokungena kwemagnethi.Nangona kunjalo, ngokweemfuno zesicelo, ubungakanani be-pore kunye nokusabalalisa kwe-pore kunokulawulwa ngokulungelelanisa ukubunjwa kwezinto eziphathekayo, ubungakanani beengqungquthela kunye nenkqubo.Nangona kunjalo, incinci isayizi yepore, iphezulu iindleko zokwenziwa.(3) Akukho kucalulwa kwezinto ezixutywayo kunye neengqolowa ezintle kunye ezifanayo zekristale.Izinto ezixutywayo kwi-iron-based structure materials ziqatshelwa ngokudibanisa i-alloying element powders kunye nokuxuba.Ngaphandle kokunyibilika, inani kunye neentlobo zezinto ezixutywayo ezongeziweyo azichatshazelwa yimida ye-solubility kunye nokwahlula koxinaniso, kunye ne-alloys-free-alloys kunye ne-pseudo-alloys zinokulungiswa.Iipores zithintela ukukhula kweenkozo, ngoko ke iinkozo zezinto ezisekelwe kwisinyithi zilungile.