Iyo injeniyeri zikeneye ibice byicyuma bihanitse bihanganira 30.000 psi hydraulic yumuvuduko, birwanya kugwa mumazu ya pompe yamazi yumunyu, cyangwa kugumya guhagarara neza nyuma yo kuvura ubushyuhe bwa 800 ° C - gutunganya bisanzwe cyangwa gupfa guta akenshi bigabanuka. Aho niho hari ukuri uruganda rutera inshinge yinjiza umwanya wacyo: ntabwo ari umutanga rusange, ariko nkumufatanyabikorwa wa tekinike uzi neza ibya fiziki ya microstructures nziza, binder burnout kinetics, hamwe nindishyi zo kugabanuka.
Twabonye abakiriya bohereza prototypes ya MIM hamwe na ± 0.3% kwihanganira umurongo-gusa twavumbuye mugihe cyo gukora igeragezwa ryerekana ko cobalt alloy nozzles yazengurutswe nubushyuhe bwumuriro. Intandaro? Igenzura ridahagije kubijyanye no gutesha agaciro igipimo cyimyanya yikirere. Kuri QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Buri MIM itangirana na AMS 5387 cyangwa T800 ifu yerekana ifu - ntabwo ari amakuru gusa, ahubwo ibirimo ogisijeni, gukwirakwiza ingano (D50 ≤ 8.2 µm), no kugenzura ubucucike. Twanze ibyiciro hanze 4.2-4.4 g / cm³. Ibi ntabwo birenze urugero. Nuburyo dufata ± 0,05 mm kuri 12-mm-diametre ya piston pompe ya silinderi ya bores nyuma yo gucumura.
Inganda nyinshi zifata MIM nk "ifu + ifu + umuriro." Turabifata nka disipuline eshatu zifatanije cyane: kugaburira amatungo agenzurwa na rheologiya, igishushanyo mbonera cyerekana neza uburyo bwo kugabanuka kwa anisotropique, hamwe no gucungwa nikirere hamwe nikigereranyo cya ogisijeni mugihe gikurikiranwa nigitutu cyigice. Kurugero, ibyuma byacu bya cobalt-nikel bisaba ibyiciro bibiri byo gucumura: iminota 60 kuri 1150 ° C muri 5% H₂ - 95% N₂ kugirango ukureho karubone isigaye, hanyuma iminota 90 kuri 1320 ° C muri hydrogène yuzuye kugirango ugere kuri 99.2%. Simbuka intambwe imwe, kandi ubukana buramanuka buva kuri 42 HRC bugera kuri 36 HRC - bihagije kugirango bitere kwambara imburagihe mu myanya ndende ya valve. Twandika buri kintu cyose. Buri cyiciro gitwara ibisobanuro byuzuye: ifu yifu, ubufindo bwa binder, indangamuntu ya cavity ID, zone itanura, na raporo yubugenzuzi bwa CMM.
Kwishyira hamwe bihagaritse kudutandukanya nabakozi. Ntabwo dushyira hanze gucumura. Ntabwo duhinga gutunganya imashini zanyuma. Ikigo cyacu cyujuje ISO gikoresha MIM hamwe na CNC itanu ikora imashini, gushora imari, hamwe no kuvura ubushyuhe bwa vacuum - byose munsi yinzu. Mugihe umukiriya yohereje igishushanyo cya GD&T kubice bya pompe ya AMS 5387 hamwe numwanya wukuri wahamagaye kumyobo umunani Ø3.2 ugereranije na datum ya mm 25, ntabwo dusaba ibisobanuro. Twigana ibikoresho byatewe no gutandukana, duhindura kugoreka nyuma yo gucumura dukoresheje amakarita yo kugabanya amateka, kandi tugashyiraho urumuri rwo kurangiza gusa aho hejuru yikimenyetso gisaba Ra ≤ 0.4 µm. Nta rework. Ntibitangaje. Gusa kubahiriza-pass.
Gutanga kwukuri kwisi gushingira kubibaho mbere yo kurasa kwambere. Twasuzumye ibishushanyo birenga 1.200 MIM yiteguye kuva muri 2020-dusanga ingingo eshatu zananiranye zisubirwamo: ibicuruzwa bisaba electrode ya EDM sinker aho kuba ibyuma bisanzwe, inzibacyuho yurukuta irenga igipimo cya 3: 1 (itera kugabanuka gutandukanye), hamwe nu mwobo uhumye urenze 4 × diameter (umutego ufata). Itsinda ryacu ryubwubatsi rishyira ibendera mubisubirwamo mbere yubusa - kubuntu - kandi risaba ko geometrie ihindura igabanya igiciro cya 22% mugereranije. Umukiriya umwe wibikoresho bya peteroli yo muri Amerika ya ruguru yagabanije igihe cyo kuyobora kuva ibyumweru 14 bikagera ku byumweru 6.5 nyuma yo kwemeza ibitekerezo byacu bya DFM.
Niba porogaramu yawe isaba gusubirwamo mubice 5000, guhuza metallurgjiya mubice 20, cyangwa kwemeza imikorere irenze ASTM B962, ukeneye ibirenze uruganda rutunganya ibyuma. Ukeneye umufatanyabikorwa ufata garama zose zivanze na cobalt nkibikoresho bya kalibibasi - kandi bipima intsinzi ntabwo mubisanduku byoherejwe, ariko mubitsindwa bya zeru nyuma yamasaha 10,000 yo gukora. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yubaka ibyo byukuri muri buri ntambwe. Ntabwo ari ibitekerezo. Nkumwitozo wa buri munsi.
