Ngenxa yokusebenza okusezingeni eliphezulu kanye nezindleko eziphansi zezinto ze-powder metallurgy, izingxenye ze-powder metallurgy zisetshenziswa kabanzi emotweni, okuhlanganisa izingxenye zokudonsa ukushaqeka, umhlahlandlela, i-piston kanye nesihlalo se-valve ephansi ku-chassis yemoto; Uhlelo lwamabhuleki lunenzwa ye-ABS, ibhuleki pad nokunye;Izingxenye zephampu ikakhulukazi ziyipompo likaphethiloli, iphampu kawoyela kanye nephampu yokudlulisela ezingxenyeni ezibalulekile;Injini inepayipi, iringi yesihlalo, induku yokuxhuma, isihlalo sokuthwala, izingxenye ezibalulekile zesistimu ye-variable valve timing (VVT) kanye ne-exhaust. ukwesekwa kwamapayipi, njll.Ukudlulisa kunehabhu ehambisanayo kanye nohlaka lwegiya leplanethi nezinye izingxenye.
I. Ukuthuthukiswa kwezingxenye ezizenzakalelayo ze-powder metallurgy
Ngokuthuthuka okusheshayo kwemboni yezimoto yaseShayina, imakethe yezingxenye zezimoto nayo igcine ukuthambekela okusheshayo.Ngo-2015, umkhiqizo wezimoto waseChina wafinyelela ezigidini ezingama-24.5033 zamayunithi, wakleliswa kuqala emhlabeni. inyuke cishe ngamaphesenti ayi-10 kusukela ngonyaka odlule. Ngakolunye uhlangothi, ngemva kokungena kweShayina enhlanganweni yezohwebo yomhlaba, akugcini nje ukwakha isethi ephelele yemboni yezimoto yangaphandle njengabasingathi, kanye nama-oda amakhulu asekhaya ezingxenye ze-powder metallurgy, umkhiqizo ngamunye, kanye nezinkampani zakwamanye amazwe ezisingatha imali ezweni lethu, ukwenza isethi ephelele yemikhiqizo ye-powder metallurgy ihlinzeka ngendawo yesidingo esikhulayo, isidingo sokunwetshwa ekuthuthukisweni kwamabhizinisi e-powder metallurgy eChina kulethe ithuba elingajwayelekile.
Ngokombono wenani eliphumayo lokuthengisa lezingxenye zezimoto ze-powder metallurgy, inani lokuthengiswayo likhuphuke lisuka ku-876.21 million yuan ngo-2006 laya kumayuan ayizigidi ezingu-367.826 ngo-2015, ngezinga lokukhula lonyaka elihlanganisiwe lika-17.28%, futhi lagcina umkhuba wokukhula ngokushesha okuqhubekayo. , kanye nesidingo semakethe yezingxenye ze-powder metallurgy sigcine inkambiso yokukhula ngokushesha.
Ukuminyana kwempushana ye-athomu evamile (okuhlanganisa insimbi ye-carbon nensimbi ye-copper-carbon alloy) kungaphezu kuka-6.9, futhi ubulukhuni bokucisha bungalawuleka eduze kwe-HRC30.
Ngokuvamile, ukuminyana kwe-powder pre-alloyed (AB powder) kudlula i-6.95, futhi ubunzima bokucima bungalawulwa eduze kwe-HRC35.
Izimpushana eziphezulu ezifakwe ngaphambili ezinobuningi obukhulu kuno-6.95 kanye nobulukhuni bokucisha okulawulwa ku-HRC40.
Imikhiqizo ye-powder metallurgy eyenziwe ngezinto ezingenhla inokuqina okuzinzile kanye nezinto ezibonakalayo, futhi ubulukhuni ngemva kokwelashwa kokushisa buhlangabezana nezidingo ezihambisanayo, ngakho amandla abo okuqina namandla okucindezela azofinyelela esiqongweni esingcono.
Kodwa-ke, ngenxa yokuthi ukuminyana kwemikhiqizo ye-PM akuphakeme njengaleyo yensimbi enguNombolo 45, ukuminyana okuphezulu kakhulu kwezingxenye zokucindezela ze-PM kuvamise ukuba ngu-7.2 g/cm, kuyilapho ukuminyana kwensimbi engu-No. 45 kungu-7.9 g/cm.I-Carburizing ephoqelelwe i-powder metallurgy noma ukwelashwa kokushisa okuvama kakhulu okudlula i-HRC45 kuzokwenza imikhiqizo ye-powder metallurgy ibe brittle ngenxa yokucisha okukhulu, okuholela emandleni emikhiqizo ye-powder metallurgy.
1. Izinga eliphezulu lokusebenzisa impahla, kuze kufike ngaphezu kwama-95%
2. Cha noma ukusika kancane kuyadingeka
3. Ukungaguquguquki okuhle kwezingxenye, ukuzinza okuhle nokunemba okuphezulu.
4. Ukuqhathanisa amandla: abakhiqizi bensimbi abayizimpushana abachwepheshile bathuthukise ukwakheka kwesikhunta se-powder metallurgy, futhi amandla aqinile namandla acindezelayo egiya akhiqizwayo asondelene nalawo okubhoboza igiya.Isibonelo, igiya elishayelwa igiya lemoto elinokuhanjiswa okuphezulu. ukuqina futhi kuyigiya le-powder metallurgy.Igiya elibonakalayo, i-powder metallurgy liyasebenza futhi libanzi.
5. Ukucindezela i-Powder usebenzisa ukubunjwa kwesikhunta, kungakhiqiza obunye ubuchwepheshe bokusika be-hobbing abukwazi ukukhiqiza izimo eziyinkimbinkimbi.
6. Ngenxa yokuthi ifanele ukukhiqizwa ngobuningi, ukusebenza kahle kokukhiqiza kuphezulu futhi izindleko ziphansi kunokusika.
7. Ifanele ukukhiqizwa ngobuningi, ngakho intengo iyancintisana ngokuphelele.