Ufa zitsulo (Powder metallurgy, wotchedwa PM) ndi teknoloji yachitsulo yomwe ufa wachitsulo (kapena chisakanizo cha ufa wachitsulo ndi ufa wopanda chitsulo) umagwiritsidwa ntchito ngati zopangira kupanga zitsulo kapena zipangizo zomwe zimagwiritsidwa ntchito popanga, sintering kapena kutentha.Njira yopangira zitsulo za ufa ndi yofanana ndi kupanga zinthu za ceramic, kotero anthu nthawi zambiri amatcha njira ya zitsulo za ufa "njira ya cermet".
Ndi chitukuko chofulumira cha mitundu yonse ya moyo, zofunikira zosiyanasiyana monga mawonekedwe opepuka komanso ophatikizika, magawo ochulukirachulukira akukhala ovuta kwambiri, zomwe zimapangitsa kuti njira yopangira zitsulo za ufa ikumane ndi zovuta zambiri.
Ndi kuwonjezeka kwa kuchuluka kwa PM, zofunikira pa ndondomekoyi ziyenera kukhala zovuta.Monga zida zofunika kwambiri pa mzere zitsulo mbali kupanga ufa, ufa kupanga hayidiroliki atolankhani chimatsimikizira khalidwe la ufa yaying'ono ndi kuletsa chitukuko cha mafakitale ufa zitsulo ku China..Makina osindikizira a ufa wapamwamba kwambiri ndi ufa wopangidwa ndi makina osindikizira a hydraulic pogwiritsa ntchito teknoloji ya electro-hydraulic ratio, koma luso lake liri lotsekedwa.
Pakali pano, zomera zikuluzikulu ufa zitsulo kupanga anayambitsa patsogolo ufa kupanga zida ndi mizere kupanga kuchokera kunja, koma mawu oyamba okha sangathe kuthetsa vutoli kwenikweni.Chifukwa chake, chitukuko chodziyimira pawokha cha zida zopangira ufa wapamwamba kwambiri ndiyenso chitukuko chachikulu chamakampani opanga ufa.
Powder metallurgy kupanga ndondomeko
Kupanga ndi gawo lofunikira pakupanga zitsulo.Cholinga cha kupanga ndikupanga chophatikizika chokhala ndi mawonekedwe, kukula, kachulukidwe ndi mphamvu.Kupaka compress ndiye njira yofunika kwambiri yopangira.
Njira yopangira psinjika ili ndi njira yosavuta, yothandiza kwambiri, komanso ndiyosavuta kupanga zokha.Komabe, kugawanika kwa kupanikizika kwa njirayi sikuli kofanana, kotero kuti kachulukidwe ka thupi lobiriwira si yunifolomu, ndipo kusweka kumakhala kosavuta, zomwe zimapangitsa kuti pakhale zinthu zopanda pake.
a.Kufanana kwa kachulukidwe kagawidwe ka compact: Chifukwa thupi la ufa limayenda mbali zonse pambuyo pa kupsinjika mukufa, kumayambitsa kupanikizika kwapambali kwa khoma la kufa.Kupanikizika kwam'mbali kumayambitsa kukangana, zomwe zingayambitse kutsika kwakukulu kwa kutalika kwa compact.
Njira zowonjezera: 1) Chepetsani kukangana, gwiritsani ntchito mafuta odzola pakhoma lamkati kapena gwiritsani ntchito nkhungu yokhala ndi khoma lamkati;
2) Kukanikiza kwanjira ziwiri kumagwiritsidwa ntchito kukonza kusalingana kwa kachulukidwe kachulukidwe kazinthu zobiriwira;
3) Yesetsani kuchepetsa kutalika kwa mita imodzi popanga nkhungu.
b.Kuchepetsa umphumphu: chifukwa cha kufalikira kwa nkhungu yachikazi panthawi ya kukanikiza, kukanikizako kukachotsedwa, chophatikizikacho chimalepheretsa kutsekemera kwa nkhungu yachikazi, ndipo chophatikizikacho chimakhala ndi mphamvu ya radial, zomwe zimapangitsa kuti compact ilandire kukameta ubweya. kupsinjika pa nthawi yopangira madontho ena ofooka pa compact akhoza kuwonongedwa pansi pa kumeta ubweya wotchulidwa pamwambapa.
Njira zowongolerera: Potengera kapangidwe kake, magawo amayenera kupewa mipanda yopyapyala, yozama komanso yopapatiza, m'mbali zakuthwa, mabwana ang'onoang'ono ndi owonda ndi mawonekedwe ena momwe angathere.
Kuchokera pazigawo ziwiri zomwe tatchulazi, kulongosola movutikira kwa zotsatira za chinthu chimodzi mu ndondomeko yoyendetsera kayendetsedwe kazinthu, koma muzogwiritsira ntchito, zinthu zosiyanasiyana zokopa ndizogwirizana.Pakufufuza, zikuwoneka kuti zinthu zomwe zimakhudza mtundu wazinthu nthawi imodzi ndi:
1. Chikoka cha kupanga kukakamiza pa khalidwe la billet: mphamvu yokakamiza imakhala ndi chikoka chapadera pa kachulukidwe.Kutsika kwamphamvu komwe kulipo kumayambitsa delamination ndi peeling panthawi ya kukanikiza, ndipo ming'alu imakhalapo pamawonekedwe a compact pambuyo pakugwetsa.
2. Zotsatira za kuthamanga kwa liwiro pa khalidwe la compact: Panthawi ya ufa, kuthamanga kwa mpweya kumakhudza kutuluka kwa mpweya kuchokera ku pores pakati pa ufa, ndipo kumakhudza mwachindunji kufanana kwa kachulukidwe kakang'ono.Kusiyana kwa kachulukidwe ka compact ndikokulirapo.Chosavuta ndicho kupanga ming'alu.
3. Chikoka cha kusunga nthawi pa khalidwe la compact: Panthawi yokakamiza, payenera kukhala nthawi yoyenera yogwira pansi pa kukakamiza kwakukulu, komwe kungapangitse kwambiri kuwonjezereka kwa compact.
Zida zomangira zitsulo zodziwikiratu za ufa zomwe zidapangidwa kumene ndi Chengdu Zhengxi Hydraulic Equipment Manufacturing Co., Ltd. zidapangidwa ngati zida zatsopano zapakhomo zophatikiza zabwino zamakina osindikizira ndi makina osindikizira a CNC servo hydraulic.
Mtundu woyandama wa template wopangidwa ndi nkhungu m'munsi mwa zida ukhoza kuwongolera kusasinthika kwa chinthucho komanso kuchuluka koyenera kwa chinthucho.Pamaziko okhutiritsa kukanikiza kosalekeza, njira yokhazikika yosindikizira ya makina osindikizira imawonjezeredwa, zomwe sizingakhale ngati malire komanso ngati njira yokhazikika yosindikizira.Chitetezo cha magawo awiri a kukanikiza ndi kukanikiza kumathandizira kwambiri kulondola kwazinthu komanso kupanga bwino.
Mayi Serafina
Tel/Wts/Wechat: 008615102806197
Nthawi yotumiza: Jun-07-2021
