Mainjiniya akamatchula Stellite 21 pazovala zapamwamba, mipando yotentha kwambiri kapena ma nozzles amapope, samangosankha zinthu - akubetcha pa kukhazikika kwa dimensional, microstructural consistency, ndi zero kulolerana pakusiyana kwa batch-to-batch. Ichi ndichifukwa chake kufufuza kuchokera ku zenizeni Stellite 21 gawo fakitale zofunika kwambiri kuposa kale. Sikuti shopu iliyonse yolondola ingathe kuthana ndi aloyi ya cobalt-chromium-tungsten iyi: kuuma kwake kopitilira muyeso (48-55 HRC as-cast), chizolowezi cholimbikira ntchito, komanso chidwi ndi mbiri yamatenthedwe zimafuna zambiri kuposa makina a CNC ndi malipoti oyendera. Imafunika kuwongolera njira zotsimikizika—kuponya modutsa, chithandizo cha kutentha, machining amitundu yambiri, komanso kutsimikizira kogwirizana ndi GD&T.
Chifukwa chiyani Stellite 21 Imalephera M'manja Olakwika -ndipo Imapambana Pomwe Iyenera
Taziwonapo kawiri m'miyezi 18 yapitayi: North America hydraulic OEM idalandira nyumba zapampu za pisitoni za Stellite 21 zokhala ndi ma microcracks pamtunda pambuyo popera komaliza. Choyambitsa? Woperekayo adagwiritsa ntchito zotayira mchenga popanda kutsekereza yankho, kenako amakankhira zakudya zankhanza pomaliza kutembenuza. Zotsatira zake sizinali zopanda pake-kunali kuyimitsidwa kwa milungu itatu ndi $ 220K mu nthawi yopuma. Stellite 21 si "opangidwa ngati chitsulo chosapanga dzimbiri." Kutentha kwake ndi 1/3 ya 316 yopanda banga. Mphamvu zodula zimakwera mosayembekezereka. Moyo wa zida umatsika ndi 60% ngati madzi ozizira kapena geometry ya zida idutsa ngakhale 5 °. Kupambana kumayamba chipu choyamba chisanawuluke - ndi certification yakuthupi (AMS 5387 kapena ASTM F75), kapangidwe ka tirigu wotsimikizika, ndi zolembedwa za homogenization.
Mphamvu Zinayi Zosakambirana za Real Stellite 21 Part Factory
Fakitale yeniyeni ya Stellite 21 simangovomereza zojambula. Imawafunsa mafunso—kenako imapereka mbali zimene zimagwira ntchito, osati kungochita kuyendera. Izi ndi zomwe timatsimikizira pakupanga kulikonse:
- Chitsimikizo cha raw stock traceability: Chigawo chilichonse cha kutentha chimakhala ndi ma certs a mphero-kuphatikizapo cobalt (≥53%), chromium (27-31%), tungsten (14-16%), ndi carbon (≤0.25%). Palibe zoloweza m'malo "giredi yofanana".
- Kuponyedwa kolimba kokhazikika: Kuponyera ndalama kwa ma nozzles a khoma; centrifugal kuponyera kwa mapulagi cylindrical. Zonsezi zimafuna kutenthedwa bwino kwa nkhungu (1100-1200 ° C) ndi kuzizira koyendetsedwa bwino kuti tipewe tsankho la carbide.
- Kuphatikiza chithandizo cha kutentha: Njira yothetsera annealing pa 1175 ° C ± 10 ° C kwa maola a 2, kutsatiridwa ndi kuziziritsa kwa mpweya-osati kuziziritsa ng'anjo-kutsekera mu uniform austenitic matrix musanayambe kupanga.
- Kutsimikizika kwamapu opangidwa pambuyo pa makina: Sitingoyesa malo amodzi. Kuyesa kwa Rockwell motsogozedwa ndi CMM kudutsa madera a 9 pachigawo chilichonse kumatsimikizira kuuma kumakhalabe mkati mwa 48-52 HRC-palibe zotulutsa pamwamba pa 55 HRC (chiwopsezo cha brittle) kapena pansi pa 46 HRC (kulephera kuvala).
Kumene Mashopu Okhazikika Amayima—Apa Ndipamene Kulondola Kumayambira
Otsatsa ambiri amawona Stelite 21 ngati "chinthu china chachilendo." Koma zolephereka zenizeni zimachitika pamawonekedwe: pakati pa kutsika kwapang'onopang'ono ndi kusokonekera kwa makina, pakati pa kupotoza kwamafuta ndi ma callout a GD&T, pakati pa kutha kwa pamwamba ndi mphamvu zamadzimadzi. Mwachitsanzo, nyumba zathu za silinda zapampu za AMS 5387 Stellite 21 zimasinthidwa ndi 3D Optical scanning *asana* ndi *pambuyo* kutsitsa kupsinjika - chifukwa ngakhale kusintha kotsalira kwa 0.008 mm kunapangitsa kuti ikhale yopitilira malire a ISO 2768-mK. Timasindikiza malo onse ovuta osindikizira okhala ndi mapeyala otembenuzidwa ndi diamondi (Ra ≤0.4 µm), kenako timatsimikizira ndi profilometry-osati macheke. Ndipo inde-timagwira gulu lililonse motsutsana ndi ASTM E112 ya kukula kwa tirigu (ASTM 5 osachepera), chifukwa njere zomata zimathandizira kuphulika chifukwa cha kukakamizidwa kwa cyclic.
Kuchokera Kujambula mpaka Kutumiza: Zomwe Mumapeza
Ngati pulojekiti yanu ikufuna zida za Stellite 21 - ma nozzles, mipando ya ma valve, zodzigudubuza zapakati, mapulagi amtundu - mufunika zambiri kuposa mawu. Mufunika mayankho oyambilira akupanga. Timayika chizindikiro pachiwopsezo chisanayambike: makulidwe a khoma pansi pa 2.5 mm popanga ndalama, ma angles ochepera pansi pa 1.5 °, kapena kulekerera kwa GD&T molimba kuposa ± 0.015 mm pamalo olimba. Kuyenda kwathu kowonda kumathandizira ma prototype (ochepa ngati zidutswa 3) okhala ndi lipoti lonse la FAI, kenako sikelo yoyera mpaka 500+ mayunitsi / mwezi popanda kuyenerera. Nthawi yotsogolera? Masabata a 12-16 a zolemba zoyambirira, kuphatikizapo NDT (UT + PT). Maoda opangidwa ndi makina okha amatumizidwa m'masabata 6-8. Magawo onse amatumiza ndi kutsata kwathunthu: nambala ya kutentha, malo oponya, chipika chozungulira kutentha, lipoti la CMM, ndi mapu akuuma.
Stellite 21 sizokhudza mtengo - ndizotsatira zake. Pulagi yolephera mumafuta am'mphepete mwa nyanja & gasi wambiri sichongofuna chitsimikizo. Ndizochitika zachitetezo. Kuchedwetsedwa kwa winch shaft kwa galimoto yauinjiniya sikusintha kwadongosolo. Ndi chosowa chosowa. Kusankha choyenera Stellite 21 gawo fakitale amatanthauza kusankha mabwenzi omwe amawona zitsulo monga engineering-osati kugula. Ndani amamvetsetsa kuti kulondola sikuyezedwa mu ma microns okha, koma mukuchita mobwerezabwereza pazigawo zambiri zokakamiza. Ilo si lonjezo. Ndilo maziko.
