I.Chiyambi
A porous sintered fyulutandi mtundu wa fyuluta wopangidwa ndi sintering (kutentha ndi kukanikiza) ufa kapena tinthu tating'onoting'ono tomwe timapanga chinthu cholimba chokhala ndi porous. Zoseferazi zimagwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikiza kusefera, kulekanitsa, ndi kuyeretsa. Amapangidwa ndi zinthu zosiyanasiyana monga chitsulo chosapanga dzimbiri, aluminiyamu ndi mkuwa. Mapangidwe a porous amalola madzi kapena mpweya kudutsa pamene akutchera ndikuchotsa tinthu tating'ono kapena zonyansa. Kukula kwa pore ndi kugawa, komanso zinthu zakuthupi, zitha kusinthidwa kuti zigwirizane ndi kusefera kwapadera. Zosefera izi zimadziwika ndi kulimba kwawo, kukana kutentha kwambiri, komanso kuyanjana ndi mankhwala, ndipo nthawi zambiri zimagwiritsidwa ntchito pofuna ntchito zamakampani ndi zasayansi.
Koma pali zinthu zosiyanasiyana zosefera za sintered pamsika, tingasiyanitse bwanji zinthu zabwino zosefera za sintered?
II. Kufotokozera za zosefera zitsulo za sintered
NdiyeKodi zosefera zitsulo za sintered ndi chiyani?
Zosefera zazitsulo za Sintered ndizofunikira kwambiri pamafakitale ndi malonda, kuyambira kusefera kwamadzi mpaka kuyeretsa gasi. Komabe, si onse zosefera zitsulo sintered analengedwa ofanana. Ndikofunikira kusiyanitsa zosefera zazitsulo zapamwamba kwambiri za sintered kuchokera kuzomwe zili m'munsi kuti zitsimikizire kuti zimagwira ntchito momwe zimayembekezeredwa ndikukhala kwa nthawi yayitali. Mu positi iyi yabulogu, tikambirana za zosefera zazitsulo zapamwamba kwambiri za sintered, njira zowunikira mtundu wa zosefera zachitsulo za sintered, komanso kufunikira kosankha zosefera zapamwamba.
III.Kufunika kozindikiritsa zosefera zapamwamba
Ine.Choyamba, tiyeni tifotokoze zomwe zosefera zitsulo za sintered ndi.
Zosefera zachitsulo za sintered zimapangidwa ndi kuphatikizira ufa wachitsulo kukhala wopangidwa kale ndikuutenthetsa mpaka kutentha kumunsi kwa malo osungunuka. Njira imeneyi, yotchedwa sintering, imapangitsa kuti tinthu ting'onoting'ono ting'onoting'ono tigwirizane, ndikupanga chidutswa cholimba chokhala ndi porous. Kukula kwa pore ndi porosity ya fyulutayo imatha kuwongoleredwa mwa kusintha kukula ndi mawonekedwe a zitsulo zachitsulo ndi mikhalidwe yotentha. Mapangidwe a porous a fyuluta amalola madzimadzi kapena gasi kudutsa pamene akutchera tinthu tosafuna.
II. Mawonekedwe a Zosefera Zazitsulo Zapamwamba Zapamwamba za Sintered
Tsopano, tiyeni tikambirane makhalidwe apamwamba sintered zitsulo Zosefera. Chosefera chachitsulo cha sintered chapamwamba chiyenera kukhala chofanana ndi kukula kwa pore ndi porosity yapamwamba. Izi zimatsimikizira kuti fyulutayo imatha kutsekereza tinthu tomwe timafuna ndikulola kuti madzi kapena mpweya udutse popanda kuletsa. Zosefera zazitsulo zapamwamba za sintered ziyeneranso kukhala ndi mphamvu zamakina apamwamba, kupirira kupsinjika kwakukulu ndikukana kupunduka. Kuonjezera apo, ziyenera kukhala zogwirizana ndi mankhwala, zisawonongeke ku dzimbiri ndi mankhwala ambiri, komanso kuti athe kupirira kutentha kwakukulu popanda kutaya kukhulupirika kwake.
A. Kapangidwe ka porous:
Kukula kofanana komanso kofanana: Zosefera za porous sintered zimakhala ndi kaphatikizidwe kofanana komanso kofanana muzosefera zonse. Zimalola kuwongolera bwino momwe kusefera kwa chinthucho.
High porosity: Kapangidwe ka porous kwa zinthu zosefera za sintered zimalola kutsika kwakukulu komanso mphamvu yogwira dothi.
B. Mphamvu zamakina:
Kukana kwambiri kupsinjika: Zinthu zosefera za Sintered zimakana kukakamizidwa kwambiri ndipo zimatha kupirira kusiyanasiyana kwapakatikati popanda kupunduka kapena kuwonongeka.
Zosasinthika: Zinthu zosefera za Sintered zimadziwika chifukwa champhamvu zamakina komanso kulimba kwawo, zomwe zimawapangitsa kukhala oyenera kugwiritsidwa ntchito m'malo ovuta komanso otha kupirira kuthamanga kwambiri popanda kupunduka.
C. Kugwirizana kwa Chemical:
Zosachita dzimbiri: Zosefera za sintered nthawi zambiri zimapangidwa kuchokera ku zinthu zosagwirizana ndi dzimbiri, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito m'malo owononga.
Zosagonjetsedwa ndi mankhwala ambiri: Zosefera za sintered nthawi zambiri zimapangidwa kuchokera ku zinthu zosagwirizana ndi mankhwala osiyanasiyana, zomwe zimapangitsa kuti zikhale zoyenera kusefa.
D. Kulekerera kutentha:
Kutha kupirira kutentha kwakukulu: Zinthu zosefera za Sintered zimatha kupirira kutentha kwambiri popanda kutaya kukhulupirika kwawo kapena kusefera bwino.
Kutha kusunga kukhulupirika kwadongosolo: Zinthu zosefera za Sintered zimatha kusunga kukhulupirika kwawo ngakhale zitakhala ndi kutentha kwambiri. Zimawapangitsa kukhala oyenera kugwiritsidwa ntchito pazotentha kwambiri monga kusefera kwa ng'anjo.
IV.Njira Zowunikira Ubwino wa Zosefera za Sintered Metal
Njira zingapo zingagwiritsidwe ntchito powunika zosefera zachitsulo za sintered. Njira imodzi ndiyo kuyang'ana thupi, komwe kumaphatikizapo kuyang'ana mowonekera pobowo ndi kuyeza kukula kwake. Njira ina ndikuyesa kwamakina, monga kutsika kwamphamvu komanso kuyesa mphamvu. Mayeso ofananira ndi ma Chemical, monga kukana kwa corrosion ndi kuyezetsa kukana kwa mankhwala, angagwiritsidwenso ntchito kuwunika zosefera. Potsirizira pake, kuyesa kutentha, kuphatikizapo kuyesa kutentha kwakukulu ndi kuyesa njinga zamoto, kungagwiritsidwe ntchito kuonetsetsa kuti zosefera zidzachita bwino pa ntchito yomwe ikufunidwa.
A. Kuyang'ana Kwathupi:
Kuwunika koyang'ana mawonekedwe a porous: Kuyesa kotereku kumaphatikizapo kuyang'ana zosefera pansi pa maikulosikopu kapena chida china chokulitsa kuti muwonetsetse kuti mawonekedwe ake ndi ofanana komanso opanda chilema.
Kuyeza kukula kwa pore: Izi zimaphatikizapo kugwiritsa ntchito zida zapadera kuyesa kukula kwa ma pores muzinthu zosefera. Izi angagwiritsidwe ntchito kuonetsetsa kuti fyuluta amatha bwino kuchotsa ankafuna particles ku madzimadzi.
B. Kuyesa Kwamakina:
Kuyesa kutsika kwapanikizi: Kuyesa kotereku kuyezetsa kutsika kwamphamvu pazinthu zosefera pansi pamikhalidwe yosiyanasiyana, monga kusiyanasiyana kwamayendedwe kapena mitundu yosiyanasiyana ya tinthu tamadzimadzi. Izi zitha kugwiritsidwa ntchito kudziwa momwe fyulutayo imagwirira ntchito ndikuzindikira zovuta zilizonse zomwe zingachitike ndi momwe fyulutayo ikuyendera.
Kuyesa kwamphamvu kwa Burst: Mayesowa amayesa kuthamanga kwambiri komwe fyuluta imatha kupirira isanalephere.
Kuyesa kufananiza kwa Chemical:
Kuyesa kukana kwa Corrosion: Kuyesa kwamtunduwu kumagwiritsidwa ntchito kudziwa momwe zosefera zimatha kukana dzimbiri zikakumana ndi mitundu yosiyanasiyana yamankhwala. Izi zitha kugwiritsidwa ntchito kuwonetsetsa kuti fyulutayo imatha kugwira ntchito bwino pamalo omwe akuyembekezeredwa.
Kuyesa kukana kwa Chemical: Mayesowa amayezera kukana kwa zinthu zosefera motsutsana ndi mankhwala powawonetsa ku mankhwala enaake ndikuyesa kusintha kwa zinthu zosefera.
D. Kuyeza kutentha:
Kuyeza kutentha kwakukulu: Kuyesa kotereku kumaphatikizapo kuyika zinthu zosefera ku kutentha kwambiri kuti zitsimikizire kuti zitha kupirira kutentha komwe zitha kuwonedwa pakugwiritsa ntchito komwe akufuna.
Kuyesa panjinga yotentha: Kuyesa kotereku kumaphatikizapo kuwonetsa zinthu zosefera mobwerezabwereza kutentha kwambiri komanso kotsika kuti zitsimikizire kuti zitha kupirira kupsinjika kobwerezabwereza popanda kulephera.
Ndikofunikira kusankha zosefera zachitsulo zapamwamba za sintered pazifukwa zingapo. Choyamba, zosefera zamtundu wapamwamba zidzachita bwino komanso zokhalitsa kuposa zotsika. Izi zikutanthauza kuti adzafunika kusinthidwa pafupipafupi ndi kukonza, zomwe zingapulumutse nthawi ndi ndalama pakapita nthawi. Zosefera zamtundu wapamwamba sizingalephereke, kuteteza kutsika mtengo komanso kuwonongeka kwa zida. Kuphatikiza apo, zosefera zapamwamba zitha kuteteza zida ndi njira zomwe zimagwiritsidwa ntchito, zomwe zitha kupititsa patsogolo magwiridwe antchito komanso magwiridwe antchito.
V. Mapeto
Pomaliza, zosefera zitsulo za sintered ndizofunikira m'mafakitale ambiri komanso ntchito zamalonda. Ndikofunikira kusiyanitsa zosefera zazitsulo zapamwamba kwambiri za sintered kuchokera kuzomwe zili m'munsi kuti zitsimikizire kuti zimagwira ntchito momwe zimayembekezeredwa ndikukhala kwa nthawi yayitali. Zosefera zazitsulo zapamwamba za sintered ziyenera kukhala zofananira komanso kukula kwa pore, porosity yayikulu, mphamvu zamakina apamwamba, kuyanjana kwamankhwala, komanso kulekerera kutentha. Njira zingapo zitha kugwiritsidwa ntchito kuwunika mtundu wa zosefera zachitsulo za sintered, kuphatikiza kuyang'anira thupi, kuyesa kwamakina, kuyesa kufananira ndi mankhwala, komanso kuyesa kutentha. Kusankha zosefera zazitsulo zokhala ndi sintered zapamwamba zimatha kusunga nthawi ndi ndalama pakapita nthawi ndikuwongolera magwiridwe antchito komanso magwiridwe antchito.
Mutha Kuyang'ana ndikulumikizana ndi zosefera za HENGKO kuti mumve zambiri, ndinu olandiridwa kutumiza imelo
by ka@hengko.com, tidzatumiza posachedwa mkati mwa Maola 24 ndikudziwitsani bwino komanso zabwino kwambiri
yankho la fitration.
Nthawi yotumiza: Jan-17-2023
