MMENE MUNGAPANGA ZOPANGA ZIWALO ZOPHUNZITSA ZA UFA ZITSANI
Wokondedwa bwenzi, mutha kugwiritsa ntchito maupangiri azitsulo za ufa kuti akuthandizeni kupanga gawo lomwe limapindulitsa kwambiriteknoloji ya powder metallurgy. Izi sizikutanthauza kuti zikhale buku lathunthu lopanga zida zazitsulo za ufa. Komabe, kutsatira malangizowa kumapangitsa kuti ntchito yopangira zinthu ikhale yabwino komanso kuchepetsa mtengo wa zida.
Lumikizanani ndi Jiehuangmonga kampani yazitsulo za ufa mwamsanga kuti tithe kukuthandizani kuti mupindule kwambiri ndi zigawo zanu zazitsulo za ufa pakupanga P / M. Mukhozanso kusiyanitsa kupanga zitsulo za ufa ndi njira zina zopangira. Gwiritsani ntchito chidziwitso chathu kuti mukwaniritse ndikupambana zomwe mukufuna kupanga. Kuti muyambe, lumikizanani nafe nthawi yomweyo. Chilakolako chathu ndi kapangidwe kazitsulo za ufa, ndipo titha kuthandiza!
ZIZINDIKIRO ZA UFA
Iron-based powder metallurgy zipangizo
Iron-based powder metallurgy materials amapangidwa makamaka ndi chitsulo, ndi gulu lazitsulo ndi zitsulo zopangidwa powonjezera zinthu monga C, Cu, Ni, Mo, Cr, ndi Mn. Zopangidwa ndi chitsulo ndizomwe zimapindulitsa kwambiri pamakampani opanga zitsulo.
1. Ufa wachitsulo
Ufa womwe umagwiritsidwa ntchito popanga zitsulo zopangidwa ndi zitsulo zopangidwa ndi chitsulo ndi zinthu zomwe zimaphatikizansopo ufa wachitsulo, ufa wopangidwa ndi chitsulo, ufa wopangidwa ndi chitsulo, ndi zina.
2. PM zopangidwa ndi chitsulo
Ukadaulo wanthawi zonse wokakamiza / sintering amatha kupanga zinthu zopangidwa ndi chitsulo zokhala ndi 6.4 ~ 7.2g/cm3, zomwe zimagwiritsidwa ntchito pamagalimoto, njinga zamoto, zida zapakhomo, zida zamagetsi ndi mafakitale ena, ndi zabwino za mayamwidwe owopsa, kuchepetsa phokoso, kulemera kopepuka komanso kupulumutsa mphamvu.
3. Powder injection molding (MIM) zopangidwa ndi chitsulo
Metal powder injection molding (MIM) imagwiritsa ntchito ufa wachitsulo ngati zopangira kupanga tizigawo tating'ono tachitsulo tokhala ndi mawonekedwe ovuta pogwiritsa ntchito jekeseni wa pulasitiki. Pankhani ya zipangizo za MIM, 70% ya zipangizo zomwe zimagwiritsidwa ntchito panopa ndi zitsulo zosapanga dzimbiri ndipo 20% ndi zitsulo zotsika. Ukadaulo wa MIM umagwiritsidwa ntchito kwambiri m'mafakitale am'manja, makompyuta ndi zida zothandizira, monga zida zamafoni a SIM, mphete za kamera, ndi zina zambiri.
Powder metallurgy simenti carbide
Simenti carbide ndi ufa zitsulo zolimba zinthu ndi kusintha gulu refractory zitsulo carbide kapena carbonitride monga chigawo chachikulu. Chifukwa cha mphamvu zake zabwino, kulimba ndi kulimba kofananira, carbide ya simenti imagwiritsidwa ntchito makamaka ngati zida zodulira, zida zamigodi, zida zosagwira ntchito, nyundo zapamwamba, masikono, ndi zina zambiri, ndipo zimagwiritsidwa ntchito kwambiri muzitsulo, magalimoto, ndege, zida zamakina a CNC. , makina makampani Mould, zida zaumisiri m'madzi, zida zoyendera njanji, mafakitale aukadaulo wazidziwitso zamagetsi, makina omanga ndi zida zina zopangira ndi kukonza ndi migodi, gwero lamafuta ndi gasi m'zigawo, zomangamanga zomangamanga ndi mafakitale ena.
Ufa zitsulo maginito chuma
Zipangizo maginito okonzeka ndi ufa akamaumba ndi sintering njira akhoza kugawidwa m'magulu awiri: ufa zitsulo okhazikika maginito zipangizo ndi zofewa maginito zipangizo. Zida zokhazikika za maginito makamaka zimaphatikizirapo samarium cobalt osowa padziko lapansi maginito maginito, neodymium, chitsulo, boron okhazikika maginito zida, sintered AlNiCo okhazikika maginito zipangizo, ferrite okhazikika maginito zipangizo, etc. Ufa zitsulo zofewa maginito zipangizo makamaka monga ferrite zofewa ndi zofewa maginito composite zipangizo.
Ubwino wa ufa zitsulo kukonza maginito zipangizo ndi kuti akhoza kukonzekera maginito particles mu kukula osiyanasiyana ankalamulira, kukwaniritsa lolunjika lolunjika wa maginito ufa pa kukanikiza ndondomeko, ndi mwachindunji kupanga mkulu maginito mphamvu mankhwala maginito pafupi mawonekedwe omaliza, makamaka. kwa makina olimba komanso osalimba a maginito. Pankhani ya zipangizo, ubwino wa ufa zitsulo ndi otchuka kwambiri.
Powder metallurgy superalloys
Ma superalloys a ufa amachokera pa faifi tambala ndipo amawonjezedwa ndi zinthu zosiyanasiyana zophatikizira monga Co, Cr, W, Mo, Al, Ti, Nb, Ta, ndi zina. Ili ndi mphamvu yabwino kwambiri ya kutentha, kukana kutopa komanso kukana dzimbiri ndi zina zambiri. katundu. Alloy ndi zinthu zofunika kwambiri kumapeto kwa kutentha monga ma aero-injini ya turbine shafts, turbine disk baffles, ndi turbine disks. Kukonzekera kumaphatikizapo kukonzekera ufa, kuumba kophatikizana kwamafuta, ndi kutentha kwa kutentha.
Gulu lathu akatswiri amalangiza pa zipangizo zochokera katundu wanuzitsulo za ufa. Kuchuluka kwazinthu zopangira zomwe zingagwiritsidwe ntchito kukwaniritsa zosowa zanu malinga ndi mtengo, kulimba, kuwongolera kwamtundu, ndi ntchito zinazake ndi chimodzi mwamaubwino ogwiritsira ntchito zitsulo za ufa kupanga zigawo. Chitsulo, chitsulo, tini, faifi tambala, mkuwa, aluminiyamu, ndi titaniyamu ndi zina mwa zitsulo zomwe zimagwiritsidwa ntchito kawirikawiri. N'zotheka kugwiritsa ntchito zitsulo zotsutsa kuphatikizapo bronze, mkuwa, zitsulo zosapanga dzimbiri, ndi nickel-cobalt alloys, komanso tungsten, molybdenum, ndi tantalum. Njira ya Powder Metal imaphatikizapo kuphatikiza zitsulo zosiyanasiyana kuti apange ma alloys apadera omwe amapangidwa ndi zomwe mukufuna. Titha kukuthandizani pakupanga zodzikongoletsera, kukana dzimbiri, ndi mikhalidwe ina monga gawo lofunikira pakupanga kuphatikiza kulimba ndi kuuma. Titha kukanikiza zida zovuta kugwiritsa ntchito zosakaniza zapaderazi za ufa wachitsulo pamitengo yopanga mpaka 100 zidutswa pa mphindi.
| Mtundu | Kufotokozera | Mafomu Wamba | Mapulogalamu | Kachulukidwe (g/cm³) |
|---|---|---|---|---|
| Ufa Wopangidwa ndi Iron | Zida zoyambira pazopangira chitsulo. | Choyera, Chophatikizika, Chopangidwa kale | Amagwiritsidwa ntchito muzitsulo zoyambira za ufa. | N / A |
| PM Iron-Based Products | Amapangidwa pogwiritsa ntchito kusindikiza kwanthawi zonse / sintering. | N / A | Magalimoto, njinga zamoto, zida zapanyumba, zida zamagetsi. Amapereka mayamwidwe owopsa, kuchepetsa phokoso, kulemera kopepuka. | 6.4 mpaka 7.2 |
| Zogulitsa Zachitsulo za MIM | Zigawo zing'onozing'ono, zovuta zopangidwa ndi jekeseni wachitsulo. | Chitsulo Chosapanga dzimbiri, Chitsulo Chochepa cha Aloyi | Zamagetsi ogula monga ma SIM tatifupi a foni yam'manja, mphete za kamera. | N / A |
| Simenti Carbide | Zida zolimba zomwe zimagwiritsidwa ntchito podula, zida zamigodi. | Tungsten Carbide | Zida zodulira, zida zamigodi, zida zosavala, ndi zina. | N / A |
| Zinthu Zamagetsi | Zida zokhazikika komanso zofewa za maginito. | Samarium Cobalt, Neodymium, Ferrite | Zamagetsi, magetsi, ma mota, masensa. | N / A |
| Powder Metallurgy Superalloys | Ma alloys opangidwa ndi nickel okhala ndi zinthu zabwino kwambiri zotentha kwambiri. | Nickel, Co, Cr, W, Mo, Al, Ti | Zida za injini ya Aero monga ma turbine shafts ndi ma disks. | N / A |
Kukanikiza
Imayikidwa mu makina osindikizira a hydraulic kapena mechanical pomwe imayikidwa mu chitsulo chachitsulo kapena carbide kufa pamene alloy yoyenera ya ufa yasakanizidwa. JIEHUANG amatha kusindikiza zigawo zokhala ndi magawo anayi atsatanetsatane. Kutengera kukula ndi kachulukidwe, njirayi imagwiritsa ntchito kukakamiza kwa 15-600MPa kuti ipange magawo "obiriwira" omwe ali ndi mawonekedwe ofunikira a geometric pamapangidwe omaliza. Komabe, palibe miyeso yomaliza ya gawolo kapena mawonekedwe ake amakina pakali pano. Kutentha kotsatira, kapena "sintering," sitepe imamaliza izi.
Metal sintering (sintering process mu powder metallurgy)
Zidutswa zobiriwira zimadyetsedwa mu ng'anjo yotentha mpaka zitafika pamphamvu zomaliza, zolimba, ndi kukhazikika kwa mawonekedwe. M'kati mwa sintering, kutentha pansi pa malo osungunuka a gawo lalikulu la ufa wa gawolo kumatenthedwa ndi malo otetezedwa kuti ma molecularly agwirizane ndi tinthu tating'ono tachitsulo tomwe timapanga gawolo.
Kukula ndi mphamvu ya kulankhula mfundo pakati pa wothinikizidwa particles kukula kumapangitsanso chigawo cha luso makhalidwe. Kuti akwaniritse magawo omaliza, sintering imatha kuchepa, kukulitsa, kupititsa patsogolo kadulidwe, ndi/kapena kupangitsa gawolo kukhala lolimba kutengera kapangidwe kake. Mu ng'anjo yoyaka moto, zigawozo zimayikidwa pa conveyor mosalekeza ndikusamutsidwa pang'onopang'ono kudutsa m'zipinda za ng'anjoyo kuti zikwaniritse ntchito zazikulu zitatu.
Kuchotsa mafuta osafunika omwe amawonjezeredwa ku ufa panthawi yophatikizana, zidutswazo zimayamba kutenthedwa pang'onopang'ono. Ziwalozo zimapita kumalo otentha kwambiri a ng'anjo, kumene makhalidwe omaliza a zigawozo amatsimikiziridwa pa kutentha koyendetsedwa bwino kuyambira 1450 ° mpaka 2400 °. Mwa kusanja bwino mlengalenga mkati mwa chipinda cha ng'anjoyi, mipweya ina imawonjezedwa kuti achepetse ma oxide omwe alipo ndikuyimitsa ma oxidation owonjezera a ziwalozo panthawi ya kutentha kwambiri. Kuti amalize zidutswazo kapena kuzikonzekeretsa zina zowonjezera, pamapeto pake amadutsa m'chipinda chozizira. Kutengera ndi zida zomwe zimagwiritsidwa ntchito komanso kukula kwa zigawozo, kuzungulira konseko kumatha kutenga mphindi 45 mpaka maola 1.5.
Pambuyo pokonza
Ambiri, asintering mankhwalaangagwiritsidwe ntchito mwachindunji. Komabe, pazinthu zina zachitsulo za sinter zomwe zimafuna kulondola kwambiri komanso kuuma kwambiri komanso kukana kuvala, chithandizo cha post-sintering chimafunika. Kukonza pambuyo kumaphatikizapo kukanikiza mwatsatanetsatane, kugudubuza, kutulutsa, kuzimitsa, kuzimitsa pamwamba, kumizidwa kwamafuta, ndi kulowa mkati.
Pamwamba mankhwala ndondomeko ya ufa zitsulo
Mutha kukumana ndi zinthu zamafuta a ufa,zida zazitsulo za ufakuti ndi zosavuta dzimbiri, zosavuta zikande, etc., pofuna kusintha avale kukana, dzimbiri kukana, kukana dzimbiri ndi kutopa mphamvu ya ufa zitsulo. Jiehuang adzachita chithandizo chapamwamba pazigawo zazitsulo za ufa, zomwe zimapangitsa kuti pamwamba pake azigwira ntchito kwambiri, komanso kuti pamwamba pake ikhale yolimba kwambiri. Ndiye kodi njira zochiritsira za powdery metallurgy pamwamba ndi ziti?
Pali njira zisanu zochizira pamwamba pa ufa wa metallurgy:
1.Zokutira:Kupaka wosanjikiza wa zipangizo zina pamwamba pa kukonzedwa ufa zitsulo mbali popanda mankhwala anachita;
2.Mechanical deformation njira:Pamwamba pa zigawo ufa zitsulo kuti kukonzedwa ndi umakaniko olumala, makamaka kupanga compressive yotsalira nkhawa ndi kuonjezera kachulukidwe padziko.
3.Chithandizo cha kutentha kwa Chemical:zinthu zina monga C ndi N zimafalikira pamwamba pazigawo zochizira;
4.Chithandizo cha kutentha pamwamba:kusintha kwa gawo kumachitika kudzera mu kusintha kwa kutentha kwa cyclic, komwe kumasintha ma microstructure a pamwamba pa gawo la mankhwala;
5.Chithandizo chamankhwala apamwamba:mankhwala anachita pakati pa pamwamba pa ufa zitsulo mbali kuchitiridwa ndi kunja reactant;
ZINTHU ZOPHUNZITSIDWA ZA UFA NDI ZAPADALA KWATHU PA MANDALE Osiyanasiyana. ZOTHANDIZA ZATHU NDIZOBWERA CHILICHONSE, KUPHATIKIZAPO ZIWALO ZOTSATIRA ZOYAMBIRA MPHAMVU NDI ZOCHITIKA ZONSE.
