Lapho i-valve ye-hydraulic yehluleka ngaphansi kokucindezela kwebha engu-350, akuvamile ukuba umklamo ube nephutha—yiwo Ibhola le-Stellite valve kanye nesihlalo ukugqoka ngokungalingani, ukuqhekeka okuncane, noma ukulahlekelwa ubuqotho be-metallurgical ngemva nje kwemijikelezo engu-8,000. Sikubonile kuma-pump manifolds aphesheya kolwandle, amavalvu e-piston yezimayini, nezinhlelo zokudosa amakhemikhali ezinomjikelezo omkhulu: izihlalo ezijwayelekile zensimbi engagqwali ziguguleka ngokushesha. Ama-Stellite alloys asekelwe ku-Cobalt awakwenzi. Kodwa hhayi wonke Ibhola le-Stellite valve kanye nefektri yezihlalo iletha ubulukhuni obungaguquki, ukusatshalaliswa kwe-carbide, noma ukuphindaphindeka kobukhulu kuzo zonke iziqephu—ikakhulukazi lapho ijometri ihlanganisa amabhande okuqinisa ama-tapered, ama-eccentric bores, noma ukuxhumana kokuqina okukabili.
Kungani I-Stellite Ingeyona nje “Insimbi Eqinile”—Kuyinketho Yezinga Lesistimu
I-Stellite akuyona into eyodwa. Umndeni—6, 12, 21, 25—ene-cobalt njengomgogodla (40–65%), i-chromium yokumelana ne-oxidation, i-tungsten yokuqina okushisayo, kanye ne-carbon ukwenza i-M engagugi.7C3 kanye noM23C6 ama-carbides. I-AMS 5387 (Stellite 6) ishaya ku-38–44 HRC njengoba isakazwa kodwa idinga ukwelashwa okunembile kokushisa ukuze igweme ukwakheka kwesigaba se-brittle sigma. I-T800 alloy yengeza i-nickel yokumelana nokushaqeka okushisayo-okubalulekile kumavalvu okubuyisa uwoyela asizwa ngesitimu. Nokho ubulukhuni bubodwa buyadukisa. Isihlalo se-Stellite esinokwephuka kwe-carbide okuhlakazeka okubi ngaphansi kokulayishwa komthelela. Ibhola eline-porosity eyinsalela livuza ku-120°C. Kungakho ukusebenza okusebenzayo kuncike emandleni amathathu axhumene: ubungcweti be-alloy, ukulawulwa kwenqubo, nokuqeqeshwa kwe-metrology—hhayi nje ukuthola izinto ezingavuthiwe.
Yini Ehlukanisa Ibhola Elinokwethenjelwa Le-Stellite Valve kanye Nendawo Yezihlalo Kokunye
Sihlole abahlinzeki abangaphezu kuka-30 abafuna ubuchwepheshe be-Stellite. Iningi liyehluleka kwelinye lamaphuzu amathathu:
- Izikhala zokulandela umkhondo: Uhlu lwezitifiketi oluthi “AMS 5387” kodwa yeka imibiko ye-spectrographic eqondene nenqwaba, usayizi wokusanhlamvu, noma imiphumela yokuhlolwa kokugqwala kwe-intergranular.
- Umonakalo owenziwe ngomshini: Ukugaya okunolaka ngaphandle kokupholisa i-cryogenic kudala isendlalelo esimhlophe esingu-20-μm—ukuqhekeka okuncane, okungacunuki, futhi kujwayele ukuchitheka ngaphansi komthwalo wama-cyclic.
- Ukufaka uphawu lwe-geometry drift: Izinhlelo ze-CNC zithatha izikhala zabalingisi eziphelele. Ukulingisa kwangempela kokutshalwa kwezimali kunokuhlukahluka kokuqina kodonga okungu-±0.3 mm. Ngaphandle kwesinxephezelo sendlela yamathuluzi eguquguqukayo, ibhande lokugcina lokuvala lichezuka >0.05 mm ukusuka ku-engeli yegama—okwanele ukunqamula ukuphila kwezinti ngo-60%.
Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., sivala lezi zikhala zibheke phezulu. Isikhungo sethu esithobela i-ISO siphatha uchungechunge olugcwele: ingxube yengxube ye-cobalt encibilikisiwe ivacuum-ncibilikisiwe → ukufakwa kwe-investimenti okunembayo → imishini enzima edambisa ingcindezi → ukwelashwa kokushisa okuzinzile kwe-carbide → ukuqedwa kwe-contour ye-axis emihlanu → ukuhlolwa kwebhendi yokuvala eqinisekisiwe ye-CMM. Ibhola ngalinye levalvu ye-Stellite liphethe i-ID eyingqayizivele exhunywe kulogi yalo encibilikayo, umbiko wokusakaza we-X-ray, kanye nebalazwe elimaholoholo. Ayikho inqwaba eshiya ngaphandle kokuqinisekisa ubulukhuni be-Rockwell C kuzo zonke izindawo ezintathu—futhi ayikho imikhumbi yezihlalo ngaphandle kokuhlolwa kokuvuza kwe-helium ku-1.5× ingcindezi yokusebenza.
Ukusebenza Komhlaba Wangempela: Lapho Ukunemba Kuhlangana Nesicelo
Iklayenti elilodwa laseNorth Sea lithathe isikhundla se-Stellite 21 esincintisana naye empompini yodaka ephindaphindayo ngemva kwamahora angu-4,200 esevisi. I-Cavitation pitting yephule isendlalelo esingaphansi komhlaba. Bashintshela esihlalweni sethu se-AMS 5387—ijometri efanayo, izindlu ezifanayo—kodwa ngesikhala se-carbide esiqinile (sikalwa nge-SEM), okuqukethwe komoyampilo okuphansi (<120 ppm), kanye nesendlalelo se-nitride yangemva komshini. Umphumela: amahora ayi-14,700 ngaphambi kwesondlo esihleliwe. Hhayi ngoba “kwakunzima,” kodwa ngenxa yokuthi i-microstructure imelana kokubili izinhlayiya eziludaka olubi *kanye* nokuwa komhwamuko wesikhashana.
Esinye isimo: isitshalo samakhemikhali saseNingizimu-mpumalanga ye-Asia sidinga amabhola e-T800 angajwayelekile ukuze ivalvu yemitha ye-diaphragm ibambe u-98% we-sulfuric acid ku-85°C. I-Stellite 6 ejwayelekile igqwalile kusixhumi esibonakalayo. Sidizayine kabusha ibhola ngekepisi ye-T800 e-diffusion-bonded phezu kwe-core 17-4PH—ekhiqizwe ekusetheni okukodwa ukuze kuqedwe amalunga e-galvanic. Ingxenye iphumelele ukuhlolwa kokucwiliswa kwe-ASTM G28A yamahora angu-1,000 ngokuncipha kwesisindo esiqanda. Lokhu kwakungaphumi eshalofini. Kwakuyi-geometry eqhutshwa yi-metallurgy.
Ukukhetha Ibhola Lakho Le-Stellite Valve Ne-Seat Factory—Buza Le mibuzo
Ngaphambi kokusayina i-NDA, buza umphakeli wakho:
- Ungakwazi ukwabelana ngombiko wakamuva we-spectrographic we-AMS 5387—ubonisa amazinga wangempela e-W, C, kanye no-Si uma kuqhathaniswa nemikhawulo ethile?
- Ingabe ulinganisa ingxenyenamba yevolumu ye-carbide (ngokuhlaziya isithombe) kuyo yonke indawo—noma ubulukhuni nje?
- Unxephezela kanjani ukwehla kokwehla ohlelweni lwakho lwe-CNC? Ingabe usebenzisa idatha ye-CT-scan ukulungisa izindlela zamathuluzi?
- Yibuphi ubulukhuni bakho obuphezulu obuvunyelwe (Ra) ebhendini yokuvala—futhi uyiqinisekisa kanjani ngokubona, hhayi nje umbhalo?
- Ungakwazi yini ukunikeza ukulandeleka okugcwele phansi kwenombolo ye-electrode esetshenziswa ku-vacuum arc remelting?
Uma izimpendulo zingacacile, zibambezelekile, noma izindinganiso ezijwayelekile esikhundleni sama-callouts e-GD&T yomdwebo wakho—hamba uhambe. Izingxenye ze-Stellite azizona impahla. Kuyizixhumanisi ezibucayi zesistimu lapho iphutha elingu-0.01 mm libiza isikhathi sokuphumula, hhayi amadola.
Konjiniyela abacacisa ukubekwa uphawu kokusebenza okuphezulu ezindaweni ezinokhahlo, i Ibhola le-Stellite valve kanye nefektri yezihlalo okhethayo kufanele uphathe i-metallurgy, machining, kanye ne-metrology njengeziyalo ezingenakuhlukaniswa—hhayi izinyathelo ezilandelanayo. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yakha lokhu kuhlanganiswa ekuhambeni komsebenzi wayo nsuku zonke. Ukugxila kwayo kuhlala kukuncane: ukuxazulula ukuguga, ukugqwala, nokwehluleka kokukhathala ekulawuleni uketshezi olubalulekile kumishini—kuqala ngalokho okwenzeka lapho insimbi ihlangana nensimbi, umjikelezo ngemva komjikelezo, ingcindezi ngemva kokucindezela. Ngokuzayo lapho i-valve ihluleka ngaphambi kwesikhathi, bheka udlule uphawu. Hlola ukusatshalaliswa kwe-carbide yesihlalo. Yilapho ukuqina kwangempela kuqala khona.
