Mumamva Stellite akuponyedwa mozungulira m'mashopu ndi misonkhano yogula zinthu, nthawi zambiri ngati chophatikizira chilichonse chovuta kapena chochokera ku cobalt. Ndilo lingaliro lolakwika loyamba kumveka. Sichinthu chimodzi koma banja, makamaka cobalt-chromium alloys, ndipo delta yogwira ntchito pakati pa magiredi monga Stellite 6, 12, kapena 21 ndi yayikulu. Ndawonapo mapulojekiti akulephera chifukwa wina wangotchulapo Stellite pajambula, poganiza kuti zonse ndizofanana kwambiri. Si. Kusankha pakati pa kalasi ya carbon high for abrasion kwambiri ndi yotsika-carbon kuti igwirizane bwino si maphunziro-ndi kusiyana pakati pa mpando wa valve wokhala miyezi isanu ndi umodzi kapena zaka zitatu.
The Casting Conundrum ndi Shell Mold Reality
Kugwira ntchito ndi ma aloyi awa sikufanana ndi kupanga zitsulo zofatsa. Kuchuluka kwa cobalt ndi chromium kumawapangitsa kukhala maloto owopsa ngati simusamala. Kumayambiriro, tinayesa kudula zojambula za Stellite 6 ndi zoikamo za carbide. Chotsatira? Pamalo onyezimira, zida zogwiritsidwa ntchito mwachangu, ndi zida zowoneka bwino. Maphunzirowa anali ovuta. Mufunika kukhazikika kolimba, ma geometries abwino, ndipo nthawi zina, muyenera kuvomereza kuti kugaya ndiye gawo lomaliza la kulolerana kofunikira.
Apa ndi pamene ndondomeko yopita kumtunda imakhala yofunika kwambiri. Chigawo cha Stellite chosayendetsedwa bwino ndi chosatheka kupulumutsa chuma pogwiritsa ntchito makina. Takhala ndi kusinthasintha kwabwino kwambiri chipolopolo nkhungu kuponyera kwa zigawo zovuta. Kukhazikika kwapang'onopang'ono ndi kutha kwa pamwamba kuchokera ku nkhungu yabwino ya chipolopolo kumakupatsani mwayi womenya nawo gawo la CNC. Zimachepetsa kuchuluka kwa zinthu zovuta zomwe muyenera kuzichotsa, zomwe zimapulumutsa mwachindunji nthawi ndi mtengo wa zida.
Ndikukumbukira pulojekiti yapadera ya kasitomala wa petrochemical wofunikira wovala mwamakonda. Choyimira choyambirira, chopangidwa kudzera mumchenga wosavuta, chinali ndi magawo olimba osagwirizana komanso kuchepera kobisika. Kukanika kunali nkhondo. Tidasintha njira yopangira chipolopolo cholondola kuti tipangire, ndikulumikizana ndi maziko omwe amadziwa momwe angagwiritsire ntchito mawonekedwe olimba a alloy - monga. Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd.. Kuyang'ana kwawo kwazaka khumi pakupanga ndi kupanga makina kumatanthawuza kuti amapeza mgwirizano wofunikira. Simungathe kungoyiponya ndikuyembekeza kuti sitolo ina idzadziwa makinawo. Kukhala pansi pa denga limodzi, kapena ndi ogwirizana mwamphamvu, ndikofunikira. Manja opangira adatuluka ndi ma microstructure yunifolomu, ndipo dipatimenti yathu ya CNC imatha kupirira zolimba popanda kusintha kosatha kwa zida.
CNC Machining: Kuvina Kosakhwima Ndi Kuuma
Machining Stellite ndi phunziro laukali wolamulidwa. Simungakhale wamantha ndi mabala anu, kapena mudzangogwira ntchito-kuumitsa pamwamba kuti mukhale wosanjikiza. Koma inunso simungakhoze basi kuswa mu izo. Malo okoma ndi chakudya chokhazikika, chokhazikika chokhala ndi chida chakuthwa. Timatsamira kwambiri zoyika za ceramic kapena CBN kuti titsirize ziphaso pamakalasi ovuta. Zoziziritsa kuziziritsa sizingakambirane, osati kungoziziritsa - zimathandizira kuchotsa chip. Zingwe zazitali, zingwe zozungulira chida? Ndi njira yachangu yowonongera gawo ndi chida.
Mfundo imodzi yomwe nthawi zambiri imanyalanyazidwa ndi fixturing. Chifukwa mukukankhira chidacho ndipo zida zake ndizovuta, gawolo liyenera kutsekedwa kwathunthu. Any chatter or vibration translates directly into micro-fractures on the part surface, which become initiation points for cracks in service. Tasamukira ku ma hydraulic fixtures pazinthu zofunika kwambiri za Stellite. Ndi mtengo wowonjezera, koma ndiotsika mtengo kuposa kuponya $ 5,000 chifukwa chakumapeto koyipa kwa flex.
Post-machining nthawi zambiri amawulula chowonadi cha kuponya. Nthawi ina tidapanga gulu la nsalu za Stellite 21 turbine blade. Nthawi zambiri, njira yopangira zida inali yosalala. Pazigawo ziwiri, tidakhala ndi mabala ocheperako, oyambitsa mabala enaake. Zinawonetsa kusiyana kwa kuuma kwanuko, mwina kupatukana kwa carbide kuchokera pagawo loponyera. Tidawakoka awiriwa kuti tiwonjezere kutentha kuti tigwirizane ndi kapangidwe kake - kuchedwa komwe palibe amene adafuna. Zimatsimikizira kuti ngakhale ndi maziko abwino, mumafunika kuyang'anitsitsa mozama, nthawi zina kupitirira kufufuza kwa chemistry kuti muphatikizepo kuyesa kwa ultrasonic kapena eddy panopa kuti mukhale osasinthasintha.
Kusankhidwa kwa Aloyi: Sikuti Sikuti Ndiwongopeka
Gulu lapadera la alloys ndi pomwe uinjiniya weniweni umachitika. Stellite imakhala pafupi ndi ma alloys opangidwa ndi nickel ngati Inconel, koma ntchito zawo zimasiyana. Stellite kwa kuvala ndi kukana galling pa zolimbitsa thupi kutentha; ma nickel-alloys owonjezera kuti azitha kutentha kwambiri komanso dzimbiri. Ndawonapo mapangidwe omwe Inconel 625 adatchulidwa poyambirira kuti azitha kutentha kwambiri, koma njira yolephereka kwenikweni inali kukokoloka kwa waya kuchokera kuthamanga kwambiri. Kusintha kwa carbon high-carbon Stellite kalasi ngati Stellite 3 adathetsa vutoli pamtengo wotsika.
Chisankho ichi ndi chofunikira kwambiri. Muyenera kufunsa: Kodi mdani wamkulu ndi abrasion, kukokoloka, dzimbiri, kapena kuphatikiza? Kodi kutentha kwa ntchito ndi kotani? Kodi pali mphamvu? A gwero ngati Mtengo wa QSYZolemba zawo, zomwe zikuphatikiza mabanja onse a cobalt ndi faifi, ndizothandiza chifukwa sakondera panjira imodzi. Angathe, kapena akuyenera, kulangiza malinga ndi momwe akugwiritsira ntchito. Mwachitsanzo, popanga pompa m'malo amchere omwe ali ndi dzimbiri komanso ma abrasive slurries, angapangire zokutira za Stellite 6 pagawo lachitsulo chosapanga dzimbiri m'malo mwa aloyi olimba, okwera mtengo kwambiri.
Kulephera kwa zizindikiro za bulangeti. Wothandizira nthawi ina adaumirira pa Stellite 1 pachilichonse chifukwa inali ndi kuuma kwapamwamba kwambiri. Ankagwiritsa ntchito pazigawo zomwe zimayendera panjinga yotentha komanso kuyanika. Ziwalozo zinasweka. Stellite 1 ndi brittle. Tinayenera kuwadutsa pamapepala kuti tisonyeze kuti Stellite 6, yokhala ndi ductility yabwino komanso kukana kuvala kopambana, inali chisankho choyenera pa katundu wothamanga. Nambala zamasamba sizinena nkhani yonse; zochitika zakumunda zimatero.
Kuphatikiza kuchokera ku Melt kupita ku Machine
Mfundo yofunika kwambiri ndi kusagwirizana pakati pa kupanga ndi makina. Akamachitidwa ngati ma silo osiyana, mapulojekiti a Stellite adataya ndalama ndi nthawi. Woyambitsayo ayenera kumvetsetsa zomwe makina amakumana nazo. Zinthu zosavuta monga kuwonjezera ma angles osasinthasintha, mowolowa manja, kuonetsetsa kuti zipata ndi malo okwera ali m'malo osafunikira, komanso kupewa zigawo zoonda kwambiri zomwe zimazizira kwambiri zimatha kupanga kapena kusokoneza makina.
Makampani omwe agwira ntchito m'malo onsewa kwazaka zambiri, monga tafotokozera Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd. (mukhoza kupeza njira yawo pa https://www.tsingtaocnc.com), khalani ndi chidziwitso chokhazikika chimenecho. Mbiri yawo yazaka 30 mukuponya ndi CNC Machining si mzere wotsatsa; zikusonyeza kuti alowetsamo mfundo zowawa izi. Akuganiza za malo opangira makina pomwe akupanga nkhungu, momwe ziyenera kukhalira. Kwa wogwiritsa ntchito mapeto, kuphatikiza uku kumachepetsa chiopsezo. Sikuti mukungogula zowonera; mukugula chinthu chopangidwa.
Chitsanzo chothandiza: Tinkafunikira mphete zosindikizira zovuta, zoonda kwambiri mu Stellite 12. Chovuta chinali kulepheretsa kusokoneza panthawi yokonza makina pambuyo poponya. Njira yokhazikika imatha kuponyera, kuchepetsa nkhawa, makina, ndi chiyembekezo. Wophatikizirayo adapereka njira yosinthidwa: kuponyedwa, kupanga makina ovutirapo mpaka mawonekedwe apafupi ndi ukonde, kenako kukhazikika kwachiwiri kuchirikiza kutentha, kutsatiridwa ndi makina omaliza olondola. Gawo lowonjezerali, lobadwa kuchokera kuzinthu zomwe zidachitika mu unyolo wonse, zidaperekedwa ndi magawo athyathyathya, okhazikika. Ndi mtundu woterewu womwe umalekanitsa wogulitsa magawo ndi mnzake wa mayankho.
Kuyang'ana Kupitilira Dzina la Brand
Pomaliza, ndikofunikira kudziwa kuti Stellite ndi dzina lodziwika bwino lochokera ku Deloro Stellite (tsopano ndi gawo la Kennametal). Pali ma aloyi ofanana a cobalt-chromium ochokera kwa opanga ena. Pogula zinthu, makamaka pazinthu zotsika mtengo koma zapamwamba, kuyenerera chinthu chofanana kungakhale kupambana kwakukulu. Chofunikira ndikukwaniritsa magwiridwe antchito, osati chemistry yokha. Tayesa mavalidwe mbali ndi mbali pamtundu wa Stellite 6 ndi aloyi wamba wa CoCr-A pakugwiritsa ntchito pampu yamatope. Masewerowa anali ofanana powerengera, zomwe zinapangitsa kuti pakhale ndalama zambiri.
Komabe, awa si malingaliro abulangete. Pazinthu zovuta, zodalirika kwambiri pazamlengalenga kapena za nyukiliya, kutsata ndi kutsimikizira kolimba kwa mphero komwe kumabwera ndi zinthu zodziwika nthawi zambiri kumakhala koyenera kulipidwa. Ndi kuyitanira kwina kwa chiweruzo. Mfundo ndikudziwa kuti muli ndi mwayi wosankha ndikuyika chisankho pazofuna za pulogalamuyo komanso mbiri yake yowopsa, osati chizolowezi.
Chifukwa chake, mukamakumana ndi Stellite, lingalirani mwadongosolo. Si fumbi lamatsenga lomwe mumawaza pavuto. Ndi chinthu chovuta kwambiri chomwe mtengo wake umatheka pokhapokha posankha magiredi odziwitsidwa, njira yoyendetsedwa komanso yophatikizika yopanga kuchokera ku nkhungu kupita ku gawo lomaliza, ndikumvetsetsa bwino zomwe zingakumane nazo muutumiki. Zolondola, ndipo ndizokhazikika modabwitsa. Ingolakwitsani, ndipo ndi phunziro lokwera mtengo.
