Ibice byinganda zikora cyane ntibishobora kunanirwa muburyo bubi-birananirana mugihe imyitwarire yibintu, kugenzura ibipimo, hamwe ninzira yimikorere ikora nabi. Niyo mpamvu kuyobora sisitemu ya hydraulic OEMs, ibikoresho bya peteroli yibikoresho, hamwe nabakora pompe neza barushijeho kurenga ibihimbano bisanzwe cyangwa gutunganya ibibari kuri ifu ya metallurgie uruganda ibisubizo-cyane cyane iyo ibice bisaba> 1200 MPa imbaraga zingana, kwambara birwanya 500 ° C, cyangwa zeru zeru muri zone zikomeye.
Twabibonye imbonankubone: umwubatsi wa pompe yu Burayi yasimbuye amazu ya silindiri y’umucanga hamwe na PM yatunganijwe na 4605 ibyuma bitagira umwanda - kandi agabanya kunanirwa mu murima 73% mu mezi 18. Kubera iki? Ntabwo ari ukubera ifu ya metallurgie "ari shyashya," ariko kubera ko itanga uburinganire bwa microstructural nta nzira ishingiye kuri ingot ishobora guhura. Imipaka yintete igumaho neza kandi isotropic. Gukwirakwiza Carbide bikomeza kugenzurwa. Kugabanuka? Biteganijwe muri mm 0,02 mm-ndetse no ku nzu ya 320-mm ya diametre ifite imiyoboro ikonjesha imbere hamwe na 0.8-µm Ra birangira.
Urwo rwego rwo guhuzagurika rusaba ibirenze itanura gusa. Irasaba guhuza verticale mubice bitatu bidashobora kuganirwaho: kwemeza ifu mbisi yemewe, kugenzura-gufunga amashanyarazi-kugenzura, hamwe no kwemezwa na metrology - ntabwo ari ubugenzuzi bwa nyuma gusa, ahubwo kuri buri cyiciro kuva ikarita yerekana icyatsi kibisi kugeza HIP nyuma yubuvuzi. Kuri QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Ibi ntabwo ari theoretical. Ikigo cyabo cyujuje ISO muri Qingdao gikora ibyuma byuzuye bya PM-biva muri gazi-atomize mbere y-ifu (urugero, PH13-8Mo, Custom 465®, hamwe na AMS 5387 ikomatanya na cobalt-ibyuma bivangwa) binyuze mu guhuza ubushyuhe, gucumura vacuum, gukanda isostatike ishyushye (HIP), hamwe na CNC ikarangira - hejuru yinzu imwe.
Dore itandukaniro ryuburyo bwabo n'amaduka rusange "PM-ashoboye":
- Gukurikirana ibikoresho bitangira mbere yuko ifu yinjira muri hopper: Buri cyiciro gitwara CoA yuzuye hamwe na OES + LECO isesengura, hiyongereyeho SEM / EDS kugenzura ibirimo okiside no gukwirakwiza ingano (D10 / D50 / D90 yinjiye kuri ASTM B822).
- Icyatsi kibisi cyuzuye gipimwa-ntabwo gifatwa: Kumurongo CT gusikana kugenzura ubucucike mbere yo gucumura; gutandukana> ± 0,05 g / cm³ bitera uburyo bwo guhinduranya ibintu, ntabwo ari intoki.
- Sinter-HIP ntabwo ikurikiranye-irahuza: Itanura ryabo rifite ibyumba bibiri rikoresha ingufu za azote igenzurwa mugihe cyo gucumura, hanyuma igahita yerekeza kuri argon HIP kuri 1150 ° C / 150 MPa - ikuraho ingaruka za okiside kandi igafasha hafi ya teoretiki (99.8% TD) muri geometrike igoye nkimibiri ya porte nini.
- Iterambere rinini ryakozwe - ntabwo ryishyuwe. Igisubizo: urupapuro rwintambara ruguma munsi ya 0,015 mm kuri 200 mm z'uburebure bwa piston ya piston - ndetse na nyuma yo gusya 3-axis yo gufunga ibifunga hamwe nibyambu bya radiyo.
Bamwe bashobora kuvuga ko ibyuma bya PM bigura imbere kuruta gushora imari. Ariko igihe twakurikiranaga igiciro cyose cya nyirubwite kumazu ya Tier-1 hydraulic valve (ASTM F2997 Icyiciro cya 3), inzira ya PM yatanze 22% igiciro cyigihe gito cyubuzima - ntabwo yavuye mubikoresho bihendutse, ahubwo yavuye mubisigazwa byavanyweho (umusaruro wa casting: 68%; umusaruro wa PM: 94%), byagabanije ibikorwa bya kabiri (nta gukuraho amarembo, nta gusana gusudira) kugeza igihe cyo gukora amasaha agera kuri 800.
Icyuho nyacyo ntabwo ari ikoranabuhanga-ni kuvuga neza. Turacyajya tubona buri cyumweru abajenjeri babaza bati: "PM irashobora gukemura ikibazo cyumuvuduko wa 1200?" cyangwa “Minisitiri w’intebe wa T800 azagumana ubukana nyuma ya nitriding?” Igisubizo gishingiye cyane kuri poro nibindi byinshi nukuntu urunigi rwose - kuva guhitamo ifu ya morphologie kugeza kuri HIP ramp igipimo - ihujwe n ibahasha yawe ikora. Kurugero: ifu ya spherical itanga ubwiza bwicyatsi ariko itemba nabi mubice bito-bikikijwe; ibice bidasanzwe bitezimbere kuzuza ariko bizamura imbaraga zo gusohora ingaruka. Nta rupapuro rwerekana isi yose. Hano haribintu byonyine byerekana ikarita.
Niyo mpamvu QINGDAO QIANGSENYUAN yashyizemo metallurgiste-ntabwo ari ibicuruzwa gusa-mubisubiramo byubuhanga. Bazashyira ahagaragara amakimbirane ya GD&T mbere yuko ibikoresho bitangira (urugero, kwerekana kwihanganira imyirondoro ku buso bwacumuye aho guhamagarira imyanya ifata imashini ikora neza). Bazasaba inama yo kuvura ubushyuhe byagaragaye kuri AMS 5387 ihwanye-ntabwo ari "ibyuma bitagira umwanda". Kandi bazagabana raporo ya CMM mbisi, ibiti bya HIP, n'amashusho ya metallografiya - ntabwo ari kashe / gutsindwa kashe.
Urebye imbere, ihinduka rikomeye ntabwo ryerekeza kuri poro nziza cyangwa umuvuduko mwinshi-ni ubwenge bwinganda zikora. Tekereza: ibicumuro byacuzwe hamwe nubutaka bwashizweho kashe, amazu yakozwe na HIP hamwe nugupima imashini zometseho, cyangwa fagitire mpimbano ya PM ikorerwa icyerekezo mbere yo gukubita abanyamakuru. Ibi ntabwo ari ibitekerezo bya R&D. Ni imishinga nzima ikorera uyumunsi mubigo nka QINGDAO QIANGSENYUAN-aho ubushobozi bwuruganda rukora ibyuma byuma byujuje ubuziranenge bwo gutunganya imashini, ntabwo ari serivisi zitandukanye, ahubwo nkibisubizo byakozwe na injeniyeri.
Niba ubutaha bwawe bwumuvuduko mwinshi, winch shaft, cyangwa inzu ya pompe bigomba gutanga imikorere isubirwamo - ntabwo ihuye nigishushanyo gusa - ntabwo uhitamo uwaguhaye isoko. Urimo guhitamo umufatanyabikorwa ufite metallurgical rigor ihuye numwirondoro wawe wibikorwa. Ibyo bitangirana no kubaza ibibazo bikwiye - ntabwo bijyanye nigiciro kuri kilo, ahubwo ni ibyerekeranye nubucucike bwicyatsi kibisi, inyandiko zemeza HIP cycle, nuburyo bakemura ibintu bitagaragara muri ogisijeni muri poro yinjira. Kuberako mubikorwa byingenzi-bigoye, marike yamakosa aba muri microstructure-ntabwo ari agatabo ko kwamamaza.
