Amavuta ya Cobalt ntabwo yunamye gusaba - barabisobanura. Iyo pompe hydraulic ikora kuri bar 400, mugihe indiba zo kumanuka zihura na 250 ° C na H₂S, cyangwa mugihe ibiti bya winch bikurura imitwaro inshuro nyinshi mumodoka yubwubatsi bwa Arctic, ibikoresho bisanzwe umunaniro. Kunanirwa ntabwo buhoro buhoro; zitunguranye, zihenze, kandi zinenga ubutumwa. Twabonye AMS 5387 cobalt alloy pompe amazu yamenetse mumasaha 800 yo gukora-biturutse ku nenge yabashushanyije, ahubwo biturutse ku kuvura ubushyuhe budahuye mu cyiciro cya casting. Niyo mpamvu "6 cobalt alloy part" ntabwo ari ijambo ryo gushakisha gusa. Nibisobanuro bigufi ba injeniyeri bakoresha mugihe ituze rihamye, uburinganire bwa microstructural, hamwe no kwihanganira kwambara ntibishobora guhungabana.
Kuki Batandatu-Ntabwo ari umwe, Ntabwo ari icumi-Ibice bya Cobalt bitanga ibice byukuri-byizewe
Itsinda ryacu ryatunganije, ripima, kandi ryemezwa n’umurima urenga 17.000 cobalt-nikel kuva mu mwaka wa 2018 - cyane cyane amanota AMS 5387 na T800 - ku bakiriya ba serivisi z’ibikomoka kuri peteroli, hydraulics yo mu nyanja, hamwe n’ibizamini by’umuvuduko ukabije. Ntabwo twageze muburyo butandatu bwibanze kubwimpanuka. Buri kimwe gikemura uburyo butandukanye bwo gutsindwa twabonye mu bihumbi raporo za serivisi, gusesengura imizi, hamwe nubushakashatsi bwa drift. Ibi ntabwo aribisubizo byuburyo bwiza. Bakomerekejwe nigare ryamagare, kugerageza ubushyuhe bwumuriro, hamwe no kwangirika kwisi kwangiza ibidukikije.
- Cobalt alloy nozzles - Yashizweho kugirango atere inshinge zo gutobora mugucamo ibice. Impapuro zisanzwe zitagira umwanda zangiritse 3.2 × byihuse mu bizamini byo gukuramo laboratoire (ASTM G65). T800 nozzles yagumanye ± 0,015 mm kwihanganira orifice nyuma yinzinguzingo 12,000 kumuvuduko wa 15 m / s.
- Amacomeka ya Cobalt - Byakoreshejwe nkimpumyi flange yinjiza mumazi yo kugenzura amazi. Yasimbuwe Inconel 718 mugihe abakiriya bavugaga ko bahiye mugihe cya tark-up kuri -1 ° C. Coefficient yo hasi ya Cobalt yo kugabanya yagabanije umuriro winjiza 41% utitanze ubudakemwa bwa kashe.
- AMS 5387 cobalt alloy ibice 6 bya pompe . Kurandura itandukaniro ryubushyuhe butandukanye hagati yubusabane. Amakuru yumurima yerekana 2.8 × birebire bisobanura igihe hagati yo kuvugurura hamwe nuruvange-ibikoresho.
- Inzu ya pisitori ya pompe - Ntabwo ari inkuta zuzuye gusa. Ibi bihuza imiyoboro ikonjesha neza hamwe na flanges yoroheje. Dufite kwihanganira GD&T kurenza ISO 2768-mK ku kwibanda kuri bore (≤0.008 mm hejuru ya mm 320 z'uburebure) kubera ko kudahuza bitera kwambara inkweto za piston.
- Umuvuduko wimyanya hamwe nintebe ya cobalt - Kwicara gukomera ≥45 HRC, hejuru yubuso Ra ≤0.4 µm, hamwe na zeru zeru byagenzuwe hakoreshejwe micro-CT scanning. Kwanga 98.3% ya fagitire mbisi zinjira zananiwe kugenzura ultrasonic-nta mahirwe ya kabiri iyo ufunze hydrogen kuri bar 700.
- Kumwanya winch center shaft umuzingo - Carburized T800 ifite uburebure bwa mm 1,2-1,5 mm, gukomera kwibanze> 85 J kuri -40 ° C. Kurokoka 15,000+ imitwaro ihindagurika mukunyu-spray byihuse kwipimisha aho 42CrMo4 yananiwe kuri cycle 3,200.
Guhuzagurika kw'ibintu ntibishobora kuganirwaho-Dore uko tubyemeza
Bamwe mu batanga ibicuruzwa bafata amavuta ya cobalt nk "ikindi cyuma kidasanzwe." Turabifata nka sisitemu ya metallurgical. AMS 5387 ntabwo isobanurwa na chimie yonyine-isaba kugenzura neza igabanywa ry ingano, ingano ya karbide, hamwe na reta isigaye nyuma yimashini. Duturuka gusa ku nsyo zifite ibisobanuro byuzuye kandi dukenera raporo yipimisha kuri buri kintu cyoherejwe. Buri bushyuhe bukorerwa igenzura, kwipimisha kuri ASTM E8, no gusubiramo ibyuma mbere yo gutangira. Niba karbide ikusanyije irenze 5% agace kamwe muri microstructure ya as-cast, dusiba ibintu byose - nubwo chimie yatambutse. Kuberako in-service gucamo bitangirira aho, ntabwo mubiterane byanyuma.
Imashini ntabwo ari ugukata gusa-ni Kugenzura Ubushyuhe no Kunyeganyega
Amavuta ya Cobalt akuraho kuri 1/5 igipimo cyicyuma 316. Ariko ikibazo nyacyo ntabwo cyihuta-ni ugucunga ubushyuhe. Kuri 300 ° C, imbaraga za cobalt zigabanuka 12% gusa. Ibyo bivuze ko ibikoresho byo gukata biguma biremereye, bikabyara ubushyuhe bwinshi, byoroshya igihangano cyakazi kandi byihutisha kwambara. Dukoresha korojeni ya azote ikonje - ntabwo ari igihu - mugihe cyo kurangiza guhinduranya intebe za valve. Ubuzima bwibikoresho butezimbere 3.7 ×. Ubusugire bwubuso butera imbere: nta shusho yera-yera, nta microcrake yo munsi y'ubutaka yagaragaye binyuze kuri FIB-SEM. Buri buso bukomeye bubona CMM yemewe * mbere * na * nyuma yo kuvura ubushyuhe, kuko kugoreka ntibiteganijwe-birashoboka. Kandi turabyanditse.
Igice cyawe gikurikira 6 Cobalt Alloy Igice gitangirana no gushushanya - Ntabwo ari amagambo
Ntabwo dutanga RFQs kubigize cobalt. Dutangirana no gusobanura GD&T. Turashyira ahagaragara ibishobora guhangayikishwa nimpinduka zuzuye. Turasaba inama ya geometrie ntoya - nko guhinduranya ahantu hacye kuri mm 0.3 - bigabanya igihe cyo gukora 22% bitagize ingaruka kumikorere. Twemeza gutembera kw'ibikoresho mu ishoramari dukoresheje kwigana, ntabwo dukeka. Ibi ntabwo biri hejuru. Nukwirinda ingaruka. Abakiriya basimbutse iyi ntambwe impuzandengo 3.4 yubuhanga bwo guhindura imishinga. Abakora ubwato hakiri kare ibice byingingo ya mbere muminsi 14, ntabwo 38.
Niba urimo kwerekana igice 6 cobalt alloy igice-cyangwa ugasuzuma kimwe-urimo gukemura kuramba kurenza urugero. Ntabwo byoroshye. Ntabwo ari ikiguzi wenyine. Ntukayobore igihe wenyine. Ukeneye ubudahemuka buringaniye mubushyuhe, kurwanya ruswa mubitangazamakuru bikaze, hamwe nuburyo buteganijwe nyuma yibihumbi. Aho niho uburambe buhurira no kurangizwa. Niyo mpamvu abajenjeri bagaragaza cobalt-n'impamvu bizera inzira iri inyuma yayo.
