Powder metallurgy ndi njira zamakono zomwe zimapanga zitsulo kapena zimagwiritsa ntchito ufa wachitsulo monga zopangira, pambuyo popanga ndi kupukuta, kupanga zipangizo zachitsulo, zosakaniza ndi mitundu yosiyanasiyana ya mankhwala.

Powder metallurgy technology process
1. Kukonzekera ufa ndi kuponderezana kuumba
Ambiri ntchito makina pulverization, atomization, thupi ndi mankhwala njira kukonzekera ufa.Ufa wokonzeka umasefedwa ndikusakanikirana, zinthuzo zimasakanizidwa mofanana ndipo mapulasitiki oyenerera amawonjezedwa, ndiyeno amapanikizidwa mu mawonekedwe.The maatomu pakati pa ufa particles ndi olimba-gawo kufalikira ndi makina occlusion, kotero kuti mbali pamodzi mu lonse ndi mphamvu inayake..Kupanikizika kwakukulu, kukulirakulira kwa gawolo ndi kuwonjezereka kofanana kwa mphamvu.Nthawi zina pofuna kuchepetsa kupanikizika ndikuwonjezera kachulukidwe ka magawo, njira yowotcha ya isostatic ingagwiritsidwenso ntchito.

2. Sintering
Gawo lopanikizidwa limayikidwa mu ng'anjo yotsekedwa ndi mpweya wochepetsera kuti usungunuke, ndipo kutentha kwa sintering kumakhala pafupifupi 2/3 mpaka 3/4 nthawi yosungunuka yachitsulo choyambira.Chifukwa cha kufalikira kwa mitundu yosiyanasiyana ya maatomu pa kutentha kwakukulu, kuchepa kwa oxides pamtunda wa ufa ndi recrystallization ya ufa wopunduka, tinthu tating'onoting'ono timaphatikizidwa ndi wina ndi mzake, zomwe zimapangitsa mphamvu ya mankhwala a ufa zitsulo ndikupeza mawonekedwe ofanana ndi a aloyi wamba.Palinso timabowo tating'onoting'ono m'zigawo zopindika, zomwe ndi zida za porous.
Chachitatu, pambuyo pokonza
Munthawi yanthawi zonse, magawo omwe sintered amatha kukwaniritsa zofunikira ndipo angagwiritsidwe ntchito mwachindunji.Koma nthawi zina, zofunika pambuyo processing amafunika.Mwachitsanzo, kuchiza mwatsatanetsatane kungathe kupititsa patsogolo kachulukidwe ndi kulondola kwa magawo;kuzimitsa ndi kuzimitsa pamwamba mankhwala pa chitsulo-based ufa zitsulo zigawo akhoza kusintha makina awo;Kumizidwa kwamafuta kapena kumizidwa kwamafuta kapena kukana dzimbiri.Mafuta amadzimadzi;chithandizo cholowetsera cholowetsa zitsulo zotsika zosungunuka mu pores za gawolo zimatha kupititsa patsogolo mphamvu, kuuma, pulasitiki kapena kulimba kwa gawolo.
Zigawo zazitsulo zaufa zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana: mafakitale amagalimoto, ma synchronizer hubs, mphete za synchronizer, pulleys, synchronizers;mayendedwe osiyanasiyana, magiya zitsulo ufa, zitsulo structural mbali, etc. chimagwiritsidwa ntchito kupanga makina