Mumamva 'Stellite 21' ndikuganiza nthawi yomweyo 'super alloy,' sichoncho? Zovuta kumakina, zimavala kosatha, kupita kuzinthu zovuta kwambiri. Ndilo mtundu wa kabukuka. Zowona m'malo ogulitsira, makamaka mukamagwira ntchito ndi zida zanthawi yayitali kapena zodzikongoletsera kamodzi, ndizoyipa kwambiri. Sizongokhudza kuuma kapena zolemba zolembedwa; Ndizokhudza momwe zinthu zimakhalira mukamayesa kuzipanga kukhala nkhope yosindikizira kapena chotchinga cha valve chomwe sichidzipweteka mpaka kufa m'miyezi isanu ndi umodzi. Otsatsa ambiri amangokugulitsani katundu wotsimikizika ndikusamba m'manja. Mtengo weniweni, m'malingaliro mwanga, umachokera ku chovala chomwe chimamvetsetsa ulendo kuchokera kuzinthu zopangira kupita ku gawo lomaliza, saga yonse yoponyera ndi makina. Ndiko kumene zovala zokhala ndi maziko ozama ndi mizu ya CNC, monga Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd., tsegulani gawo lawo. Iwo akhala ali mu masewera oponya ndi makina kwa zaka zoposa makumi atatu, zomwe zikutanthauza kuti mwina awona njira zonse zomwe cobalt-chrome alloy angakudabwitseni.
The Stellite 21 Spec Sheet vs. Machine Shop
Zomwe zimapangidwira ndizowongoka mokwanira: aloyi ya cobalt-chromium-molybdenum yokhala ndi nickel yabwino. Kukana kwa dzimbiri kwabwino, kukana kwamphamvu kwambiri, kumasunga mphamvu pakanthawi kokwera. Dongosolo la data limapangitsa kuti limveke ngati chipolopolo cha siliva pazovala zapamwamba, zotentha kwambiri. Koma nthawi yoyamba mukayika chida, nkhaniyo imasintha. Sizili ngati makina osapanga dzimbiri. Zimagwira ntchito-zimalimba mwamakani. Ngati liwiro lanu, ma feed, ndi njira ya zida sizinayimbidwe bwino, simukudula - mukungopukuta malo okwera mtengo kwambiri, olimba kwambiri omwe angapitirize kudya choyikapo chanu cha carbide. Mufunika khwekhwe lolimba, ma geometries abwino, ndi zoziziritsa zambiri zomwe zimayang'ana m'mphepete. Ndi ndondomeko yomwe mumaphunzira kupyolera mu zidutswa, moona.
Apa ndipamene njira yophatikizika ya kampani ngati QSY imafunikira. Samangogula katundu wamabala; amapanga castings kudzera chipolopolo nkhungu kuponyera ndi kuponya ndalama. Kuyambira kuponya pafupi ndi mawonekedwe a ukonde ndi mwayi waukulu ndi Stellite 21. Mukuchotsa zinthu zochepa, zomwe zimachepetsa nthawi yopangira makina, kuvala zida, ndi kupsinjika kwa mbali. Koma kuziponya kumabweretsa ziwanda zake zomwe-kuwongolera kutsika kwa porosity, kuonetsetsa kuti palimodzi. Zaka 30 zawo akuponya ma aloyi apadera sizongotsatsa chabe; ndi malo osungiramo chidziwitso cha momwe mungamvekere bwino za zinthu zaukali izi CNC isanayambike.
Ndikukumbukira pulojekiti yosindikizira pampu yosindikizira mankhwala. Choyimiracho chinafuna Stellite 21 pankhope zonse zokwerera. Wogulayo poyamba adapeza mphete zomwe zidapangidwa kale kuchokera kumalo ogulitsira makina. Analephera msanga chifukwa cha ming'alu yaying'ono yomwe mwina idachokera ku makina opangira kutentha kwambiri. Tidasinthiratu kwa wogulitsa pogwiritsa ntchito njira yophatikizira-ndi-makina-mtundu wa QSY amachitira. Kusiyana kunali mu microstructure. Kuyambira pakuponyedwa kotenthedwa bwino komwe amapangira m'nyumba, umphumphu womaliza wopangidwa ndi makinawo unali wapamwamba. Gawolo linatha. Sizinali matsenga; unali ulamuliro pa tcheni chonse cha mtengo.
Kumene Kuwala (ndipo Kumene Kulibe)
Stellite 21 sizinthu zonse. Malo ake okoma ndi pamene mumalumikizana ndi zitsulo kuchokera kuzitsulo pansi pa katundu, mwinamwake ndi kutentha ndi zowononga zoponyedwa mkati. Ganizirani manja a pampu, mphete zosindikizira, mipando ya valve, valani mbale m'zigawo zotentha. Kukana kwake kuvala zomatira (galling) ndiye gawo lake lakupha. Mutha kuthamangitsa nokha kapena motsutsana ndi 316 zosapanga dzimbiri nthawi zambiri popanda kuwotcherera palimodzi.
Koma cholakwika chofala ndikuchiponya pavuto lililonse la abrasion. Kwa abrasion yoyera kuchokera ku tinthu tating'ono tolimba-monga slurry mchenga-chitsulo cholimba kwambiri kapena ceramic chingakhale chisankho chabwinoko, chopanda ndalama zambiri. Stellite 21 ndi yolimba, koma imatha kuwongoleredwa. Mphamvu yake ndi kukana mtundu wa kuvala komwe kumayamba ndi microwelding ndikupita patsogolo kung'ambika.
Chinthu chinanso ndi chilengedwe. Ndi bwino mu ma oxidizing ambiri ndi kuchepetsa zidulo, koma samalani ndi hydrochloric ndi sulfuric mu ndende zina ndi kutentha. Muyenera kuwoloka ma chart a dzimbiri mosamala. Ndaziwona zatchulidwa kuti madzi a m'nyanja agwiritse ntchito pomwe ma chloride adayambitsa dzimbiri pazigawo zomwe zatha chromium. Kulephera sikunali kuvala; chinali dzimbiri kuchokera ku chinthu chomwe sichinalandiridwe bwino. Wothandizirana naye wabwino ayenera kufufuza zambiri za pulogalamuyi, osati kungotenga dongosolo.
Kuvina kwa Machining: Zodyetsa, Kuthamanga, ndi Moyo wa Zida
Tiyeni tipeze zothandiza. Pa CNC lathe, kutembenuza Stellite 21 kuponyera kapena bala, mukuyenda chingwe cholimba. Kuchedwetsa kwambiri, ndipo mumagwira ntchito-kuumitsa pamwamba, kupangitsa kuti lotsatira likhale zosatheka. Mofulumira kwambiri, ndipo mumagwedeza chidacho motenthetsa, zomwe zimabweretsa kulephera koopsa. Pakuchita roughing, ndakhala ndi mwayi wabwino kwambiri wokhala ndi carbide wokutidwa, kuthamanga pang'ono pamtunda, komanso kusasinthasintha, kuwongolera chakudya. Cholinga ndi kulowa pansi pa ntchito-youmitsa wosanjikiza. Mabala osokonezedwa ndi mdani; zida za chip.
Kumaliza ndi luso lina. Mufunika nsonga yakuthwa, chakudya chabwino kuti muthe kumaliza bwino, ndipo muyenera kupewa kukhala. Apa ndipamene luso la makina a CNC la akatswiri limabwera. Kupanga njira zokometsera zida zomwe zimasunga zida nthawi zonse ndizofunikira. Sikuti ndi kukhala ndi makina okha, amene Mtengo wa QSY amalemba mwa kuthekera kwawo, koma za kukhala ndi olemba mapulogalamu ndi ogwiritsa ntchito omwe amamvetsetsa umunthu wa zinthuzo.
Kubowola ndi kuboola? Ndizotheka, koma konzekerani. Kubowola kwa peck, zida zolimba, ndi ma geometries enieni a aloyi a cobalt sizingakambirane. Ndingatsutsane ngati mutha kupanga gawolo kuti mupewe mitanda yaying'ono, mabowo akuya kapena ulusi wabwino mu Stellite 21, chitani. Nthawi zina, ndikwabwino kupanga chitsulo chothandizira kapena kuyikapo ntchito zomangira ndikukhala ndi Stellite ngati zokutira kapena zowotcherera. Zomwe zimatsogolera ku mfundo yotsatira ...
Kujowina ndi Post-Processing kuganizira
Kuwotcherera Stellite 21, nthawi zambiri kwa hardfacing, ndikofala. Koma kuwotcherera gawo lonse? Ndi ntchito yaukadaulo wapamwamba. Chithandizo cha kutentha chisanadze ndi pambuyo pa weld n'chofunika kwambiri kuti tipewe ming'alu chifukwa cha kuchuluka kwake kwa kuwonjezereka kwa kutentha ndi chizolowezi chopanga magawo a brittle. Ngati muli ndi gawo lopangidwa kuchokera pakuponyera, kuwongolera kutentha kwa maziko ndikofunikira kwambiri. Iyenera kuthetsa kupsinjika ndikutulutsa mawonekedwe omwe amafunikira carbide mu matrix.
Kugaya nthawi zambiri ndi gawo lomaliza kuti mukwaniritse kulekerera kolimba komanso kumalizidwa kwamagalasi pankhope zosindikizira. Gwiritsani ntchito gudumu lakumanja (nthawi zambiri lofewa, lotseguka lopangidwa ndi aluminiyamu oxide kapena silicon carbide wheel), zoziziritsa zambiri, komanso zodutsa zopepuka. Zinthuzo zimakonda kupsa, zomwe zimatha kuyambitsa kupsinjika kwakanthawi komanso kung'ung'udza kwa mphindi - malo abwino oyambira kulephera muutumiki.
Kuwona kwathunthu kwa njira yopangira - kuchokera pakusankhidwa kwa aloyi pagawo loponyera (ma aloyi opangidwa ndi cobalt kukhala chinthu chapadera kwambiri pamayambiriro ambiri) mpaka kumapeto - ndizomwe zimalekanitsa magawo omwe amakumana ndi kusindikizidwa kuchokera ku magawo omwe amakhalabe m'munda. Ndi kusiyana pakati pa chigawo chimodzi ndi yankho lodalirika.
Case in Point: The Valve Trim Saga
Chitsanzo cha konkire chochokera pamtima chinali ndi valavu yoyendetsera ntchito yotsitsa nthunzi yothamanga kwambiri. Chodula (pulagi ndi mpando) poyamba chinali 17-4PH chosapanga dzimbiri. Zinatenga pafupifupi miyezi 8 kuti kukokoloka kwakukulu ndi kuphulika kungayambitse kutayikira. Njira yokwezerayi idaganiziridwa kuti Stellite 6 (carbon yapamwamba, yolimba, yosamva kuvala koma yocheperako pang'ono) ndi Stellite 21.
Tinapita ndi Stellite 21 chifukwa cha kukana kwake kwabwinoko komanso kukana kwamphamvu pakugwiritsa ntchito izi, pomwe cavitation yaying'ono idatheka. Chovuta chinali ma geometries amkati ovuta a zigawo zochepetsera, zomwe sizinali zabwino kupanga makina kuchokera ku bar yolimba. Njira yothetsera vutoli inali kuwapangitsa kuti agulitse ndalama ndi katswiri wodziwa kupanga makina. Wogulitsa, wofanana ndi Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd., opangidwa pafupi ndi maukonde opangidwa ndi mawonekedwe awo kuponya ndalama ndondomeko, anachita zofunika kutentha mankhwala, ndiyeno anamaliza mwatsatanetsatane CNC Machining pa malo ovuta kusindikiza. Chotsatira chake chinali gawo lomwe linapulumuka pa njinga yamoto yotentha ndi micro-impact ya utumiki. Mtengo wake unali wokwerapo, koma mtengo wamoyo wonse unali wotsika.
Zotengera? Kutchula Stellite 21 ndi gawo loyamba chabe. Kukhazikitsa - momwe zimapangidwira - ndizomwe zimapatsa chipambano. Mukufunikira bwenzi lomwe limayang'anira magawo ovuta: kutulutsa phokoso, kutulutsa kofanana; kuchita bwino kutentha mankhwala; ndikuchita makina ozindikira, odziwa zambiri. Izi zikakhala pansi pa denga limodzi, malupu olumikizana amakhala olimba, ndipo kuyankha kumamveka bwino. Zimachepetsa zosinthika muzinthu zomwe zimasintha kale.
Chifukwa chake, nthawi ina mukadzayang'ana pa Stellite 21 pachojambula, ganizirani mopitilira muyeso wazinthu. Ganizirani za maziko, malo ogulitsira makina, ndi ulusi wazomwe zimawagwirizanitsa. Apa ndipamene pali tsatanetsatane weniweni.
