Iyo abajenjeri bagaragaje Stellite 21 yo kwambara cyane, imyanya yo hejuru yubushyuhe bwo hejuru cyangwa pompe nozzles, ntibahitamo gusa ibikoresho-bahitamo gushikama kurwego, guhuza microstructural, no kwihanganira zeru kubitandukanye. Niyo mpamvu gushakira ukuri Uruganda rwa 21 ruganda ibintu kuruta mbere hose. Ntabwo buri duka risobanutse neza rishobora gukemura iyi cobalt-chromium-tungsten alloy: ubukana bwayo bukabije (48-55 HRC as-cast), imyumvire ikomereye akazi, hamwe no kumva amateka yubushyuhe bisaba ibirenze imashini za CNC na raporo zubugenzuzi. Irasaba disipuline yimikorere - murwego rwo gutara, kuvura ubushyuhe, gutunganya imirongo myinshi, hamwe na GD & T-kugenzura.
Impamvu icyogajuru 21 cyananiranye mumaboko atari yo-kandi kigatsinda aho kibaze
Twabibonye kabiri mu mezi 18 ashize: hydraulic OEM yo muri Amerika y'Amajyaruguru yakiriye inzu ya pompe ya piston 21 ya piston hamwe na microcrack yo hejuru nyuma yo gusya bwa nyuma. Impamvu? Utanga ibicuruzwa yakoresheje umusenyi wuzuye udafite igisubizo, hanyuma asunika ibiryo bikaze mugihe cyo kurangiza. Ibisubizo ntabwo byari ibicika gusa-byari ibyumweru bitatu byahagaritse umusaruro na $ 220K mugihe cyo hasi. Stellite 21 ntabwo "ikozwe nk'icyuma kitagira umwanda." Amashanyarazi yacyo ni 1/3 cya 316. Imbaraga zo gutema zitera hejuru bitateganijwe. Ubuzima bwibikoresho bugabanuka 60% niba ubukonje butemba cyangwa igikoresho geometrie itandukanijwe na 5 °. Intsinzi itangira mbere yuko chip ya mbere iguruka - hamwe nicyemezo cyibikoresho (AMS 5387 cyangwa ASTM F75), imiterere yimbuto zagenzuwe, hamwe nizindi nzitizi.
Ubushobozi bune budasubirwaho bwa Satelite nyayo 21 Igice cyuruganda
Uruganda nyarwo rwa 21 rwukuri ntirwemera ibishushanyo gusa. Irababaza - noneho igatanga ibice bikora, ntabwo yatsinze igenzura gusa. Dore ibyo tugenzura muri buri nyubako:
- Icyemezo kibisi cyemewe: Ubushuhe bwose butwara urusyo rwuzuye-harimo ibirimo cobalt (≥53%), chromium (27-31%), tungsten (14-16%), na karubone (≤0.25%). Nta "ntera ihwanye".
- Kugenzura gukomera: Gushora imari kumutwe muto; centrifugal casting kumashanyarazi. Byombi bisaba ubushyuhe bwuzuye (1100–1200 ° C) no kugenzura igipimo cyo gukonjesha kugirango wirinde gutandukanya karbide.
- Kwishyira hamwe.
- Ikarita-yashushanyije nyuma yo gutunganya imashini: Ntabwo tugerageza ahantu hamwe gusa. Ikizamini cya CMM kiyobowe na Rockwell muri zone 9 kuri buri kintu cyemeza ko gukomera biguma muri 48-52 HRC - nta bisohoka hejuru ya 55 HRC (ibyago byoroshye) cyangwa munsi ya 46 HRC (kunanirwa kwambara).
Aho Amaduka asanzwe ahagarara - Aha niho hatangiriye neza
Abatanga ibicuruzwa benshi bafata icyogajuru 21 nk "ikindi kintu kidasanzwe." Ariko kunanirwa kwukuri kwisi bibaho kuri interineti: hagati yo guta kugabanuka no gutunganya imashini, hagati yo kugoreka amashyuza no guhamagarwa kwa GD&T, hagati yo kurangiza hejuru hamwe ningaruka zamazi. Kurugero, inzu yacu ya AMS 5387 Stellite 21 ya pompe ya silinderi ikorerwa scan ya optique ya 3D * mbere * na * nyuma * yo kugabanya imihangayiko - kubera ko na 0.008 mm isigara ihindagurika ihindagurika yibanze kurenza ISO 2768-mK. Dukora imashini zose zifunga kashe hamwe na diyama yahinduwe irangije (Ra ≤0.4 µm), hanyuma tukemeza hamwe na profilometrie - ntabwo ari cheque igaragara. Kandi yego - dufata buri cyiciro turwanya ASTM E112 kubunini bw'ingano (ASTM 5 ntarengwa), kubera ko ibinyampeke bito byihuta gusya munsi yumuvuduko ukabije.
Kuva Gushushanya Kugeza: Ibyo Mubona Mubyukuri
Niba umushinga wawe ukeneye ibikoresho bya Stellite 21-nozzles, intebe za valve, umuzingo wa shitingi hagati, ibyuma byabigenewe - ukeneye ibirenze amagambo. Ukeneye ibitekerezo byambere byo gukora. Dutondekanya ibyago mbere yuko ibikoresho bitangira: uburebure bwurukuta munsi ya mm 2,5 mugushora imari, inguni ziri munsi ya 1.5 °, cyangwa kwihanganira GD&T kurenza ± 0.015 mm hejuru yubutaka bukomeye. Ibikorwa byacu bidafite ishingiro bishyigikira prototype ikora (nkibice 3) hamwe na raporo yuzuye ya FAI, hanyuma igapima neza kugeza kuri 500+ / ukwezi nta bisabwa. Igihe cyo kuyobora? Ibyumweru 12-16 byo gukina ingingo ya mbere, harimo NDT (UT + PT). Imashini-itumiza gusa ubwato mubyumweru 6-8. Ibice byose byoherezwa hamwe nibisobanuro byuzuye: umubare wubushyuhe, ubufindo bwinshi, ubushyuhe bwo kuvura inziga, raporo ya CMM, hamwe nikarita ikomeye.
Stellite 21 ntabwo yerekeye ikiguzi-ni ingaruka. Amacomeka yananiwe mumavuta ya peteroli na gazi menshi ntabwo asabwa garanti. Nibintu byumutekano. Gutinda kwa winch shaft kumodoka yubuhanga ntabwo ari urupapuro rwabigenewe. Ni isoko ryabuze. Guhitamo uburenganzira Uruganda rwa 21 ruganda bisobanura guhitamo abafatanyabikorwa bafata metallurgie nkubuhanga-ntabwo ari amasoko. Ninde wumva ko ubusobanuro butapimwe muri micron yonyine, ariko mubikorwa bisubirwamo mubihumbi byingutu. Ntabwo ari amasezerano. Nibyingenzi.
