I-cobalt alloys ayigobi ekufuneni-bayayichaza. Xa iimpompo ze-hydraulic zisebenza kwi-bar ye-400, xa i-valve ye-downhole ijongene ne-250 ° C kunye ne-H₂S, okanye xa i-winch shafts ithatha imithwalo yokutshatyalaliswa ngokuphindaphindiweyo kwiimoto zobunjineli ze-Arctic-grade, ukukhathala kwezinto eziqhelekileyo. Iintsilelo azikho ngokuthe ngcembe; zikhawuleza, zineendleko, kwaye zibalulekile kuthumo. Siye sabona iimpompo ezintathu ze-AMS 5387 cobalt alloy pump housings crack ngaphakathi kweeyure zokusebenza ze-800-kungekhona kwisiphene soyilo, kodwa kunyango lobushushu obungahambelaniyo kwibhetshi yokuphosa. Yingakho "inxalenye ye-cobalt alloy ye-6" ayikho nje igama lokukhangela. Yinto esetyenziswa ziinjineli ezimfutshane xa uzinzo lomda, ukufana kwe-microstructural, kunye nokunganyangeki kokunxitywa akunakubekwa esichengeni.
Kutheni iSithandathu-engekho Mnye, hayi iShumi-Amacandelo eCobalt alloy ahambisa ukuthembeka kwehlabathi lokwenyani
Iqela lethu lenze oomatshini, bavavanya, kwaye baqinisekisa ngaphezulu kwe-17,000 yezixhobo ze-cobalt-nickel ukusukela ngo-2018-uninzi lwe-AMS 5387 kunye ne-T800 amabakala-kubathengi kwiinkonzo ze-oyile, ii-hydraulics zaselwandle, kunye ne-high-pressure test rigs. Asizange sifike kuhlengahlengiso olungundoqo ezintandathu ngengozi. Nganye isombulula imo yokungaphumeleli eyahlukileyo esiyijongileyo kumawaka eengxelo zenkonzo, uhlalutyo lwengcambu yesizathu, kunye nezifundo zokukhukuliseka. Ezi ayizozisombululo zethiyori. Benziwe lukhuni kukuhamba ngebhayisikile ngoxinzelelo, uvavanyo lokothuka kwe-thermal, kunye nokuvezwa kwe-corrosion yomhlaba wokwenyani kwiindawo zegesi emuncu.
- Imilomo yengxubevange yeCobalt -Yenzelwe inaliti eludaka olurhabaxa kwii-manifolds zokwaphuka. Iinguqulelo eziqhelekileyo ezingenasici zikhukulise i-3.2 × ngokukhawuleza kwiimvavanyo ze-lab abrasion (ASTM G65). Imilomo yethu ye-T800 igcine i-±0.015 mm yokunyamezela i-orifice emva kwemijikelo eyi-12,000 kwi-15 m/s yesantya sokuhamba.
- Iiplagi ze-cobalt alloy — Isetyenziswa njenge-blind flange efakelwayo kwiipod zokulawula ulwandle. Kutshintshwe i-Inconel 718 xa abathengi baxela ukugabha ngexesha le-torque-up kwi-1°C yobushushu bamanzi olwandle. I-coefficient ephantsi ye-Cobalt ye-friction yehlise i-torque yokufaka nge-41% ngaphandle kokuncama ingqibelelo yokutywinwa.
- I-AMS 5387 ingxubevange ye-cobalt 6 iinxalenye zempompo — Isisombululo senqanaba lenkqubo: ibhlokhi yesilinda, ipleyiti yevalvu, isiliphu, i-swashplate bushing, i-port plate, kunye neringi yogcino—zonke zisuka kubushushu obuqinisekisiweyo obunye. Iphelisa ukwandiswa kobushushu phakathi kwemiphezulu yokukhwelana. Idatha yentsimi ibonisa i-2.8 × ixesha elide elithetha ixesha phakathi kokugqithisa ngokuchasene neendibano zezinto ezixubileyo.
- Izindlu zepiston pump cylinder — Hayi nje iintsimbi ezityebileyo. Ezi zidibanisa iitshaneli zokupholisa ezichanekileyo ezenziwe ngoomatshini kunye neeflange ezixhomayo ezithomalalisa uxinzelelo. Sibamba ukunyamezela kwe-GD&T kungqongqo kune-ISO 2768-mK kwi-bore concentricity (≤0.008 mm ngaphezulu kwe-320 mm ubude) kuba ulungelelwaniso luqhuba ngokuthe ngqo ukunxitywa kwezihlangu zepiston.
- Iivalve zoxinzelelo kunye nezihlalo ezidibeneyo ze-cobalt — Ubulukhuni besihlalo ≥45 HRC, uburhabaxa bomphezulu iRa ≤0.4 µm, kunye ne-zero porosity eqinisekisiwe nge-micro-CT scanning. Igatya i-98.3% yeebhilidi ezingenayo ezingenayo ezingaphumeleli ukuhlolwa kwe-ultrasonic-akukho mathuba okwesibini xa utywina i-hydrogen kwi-bar ye-700.
- Iirola zeshaft ezikwi-winch centre — ICarburized T800 enobunzulu betyala 1.2–1.5 mm, ukuqina okungundoqo >85 J ku -40°C. Usinda kwi-15,000+ yokuguqulwa komthwalo kuvavanyo olukhawulezileyo lwesitshizi apho i-42CrMo4 isilele kumjikelo we-3,200.
Ukungaguquguquki kwezinto akuxoxiswana-Nantsi indlela esiqinisekisa ngayo
Abanye ababoneleli baphatha i-cobalt alloy "njengenye isinyithi esingaqhelekanga." Siyiphatha njengenkqubo ye-metallurgical. I-AMS 5387 ayichazwanga yikhemistri yodwa-ifuna ulawulo oluluqilima malunga nokuhanjiswa kobungakanani beenkozo, i-carbide morphology, kunye ne-residual state state post-machining. Sifumana kuphela kwizixhobo zokusila ezinokulandeleka kweladle ngokupheleleyo kwaye sifuna iingxelo zovavanyo lokusila kuyo yonke imithwalo ethunyelwayo. Ubushushu ngamnye bufumana ukuqinisekiswa kwe-spectrographic, uvavanyo lwe-tensile nge-ASTM E8, kunye nophononongo lwe-metallographic ngaphambi kokuba kuqale ukuphosa. Ukuba i-carbide clustering idlula i-5% yendawo yeqhezu kwi-microstructure ye-as-cast, silahla yonke into-nokuba i-chemistry iyadlula. Kuba ukuqhekeka kwenkonzo kuqala apho, hayi kwindibano yokugqibela.
I-Machining ayikokusika nje-kukulawula ubushushu kunye nokungcangcazela
I-cobalt alloys isusa kwi-1/5 izinga le-316 yensimbi engenasici. Kodwa owona mngeni awukho ukukhawuleza-kukulawula ubushushu. Kwi-300 ° C, amandla emveliso ye-cobalt ehla kuphela i-12%. Oko kuthetha ukuba izixhobo zokusika zihlala zithwele ixesha elide, zivelisa ubushushu obuninzi, obuthambisa i-workpiece kwindawo kwaye ikhawulezise ukunxiba kwesixhobo. Sisebenzisa i-cryogenic nitrogen yokupholisa-hayi inkungu-ngexesha lokugqiba ukujika kwezihlalo zevalvu. Ubomi besixhobo buphucula i-3.7 ×. Umphezulu wengqibelelo uphucula: akukho kwakheka komgangatho omhlophe, akukho mikroqa engaphantsi komhlaba efunyenwe ngeFIB-SEM. Wonke umphezulu obalulekileyo ufumana ukuqinisekiswa kwe-CMM * phambi * kunye * nasemva * kwonyango lobushushu, kuba ukugqwetheka akunakwenzeka kwangaphambili-kunomlinganiselo. Kwaye siyayibhala.
Inxalenye yakho elandelayo ye-6 ye-Cobalt Alloy iqala ngoPhononongo lomzobo-hayi iQuote
Asizikhuphi ii-RFQ zamacandelo e-cobalt. Siqala ngotoliko lwe-GD&T. Sifaka iflegi yokunyuka koxinzelelo olunokubakho kutshintsho lwefillet. Sicebisa i-geometry tweaks encinci-njengokutshintsha indawo ye-chamfer nge-0.3 mm-enciphisa ixesha lomatshini ngama-22% ngaphandle kokuchaphazela umsebenzi. Siqinisekisa ukuhamba kwezinto kwi-investment castings usebenzisa ukulinganisa ukuqinisa, kungekhona ukuqikelela. Oku akukho ngaphezulu. Kukuthintela umngcipheko. Abathengi abatsiba eli nyathelo lomndilili we-3.4 yee-odolo zokutshintsha ubunjineli kwiprojekthi nganye. Abo babandakanyeka kwiinqanawa zokuqala zenqaku ngeentsuku ezili-14, hayi ezingama-38.
Ukuba ucacisa i-6 cobalt alloy part-okanye uvavanya enye-usombulula ubomi obude phantsi kokugqithisa. Ayilunganga. Ayizindleko zodwa. Hayi ixesha lokuhamba wedwa. Udinga ukunyaniseka komgangatho kwiqondo lobushushu, ukuxhathisa ukubola kumajelo eendaba andlongondlongo, kunye nokuqikelelwa kolwakhiwo emva kwamawaka emijikelo. Kulapho amava adibana khona nokubulawa. Yiyo loo nto iinjineli zicacisa i-cobalt-kwaye kutheni bethemba inkqubo esemva kwayo.
