Xa ivalve yehydraulic ingasebenzi phantsi koxinzelelo lwebar engama-350, kunqabile ukuba uyilo lube nengxaki-lulo. Ibhola yevalve yeStellite kunye nesihlalo ukunxiba ngokungalinganiyo, ukuqhekeka kancinci, okanye ukulahlekelwa yimfezeko yesinyithi emva nje komjikelo we-8,000. Siyibonile kwiimpompo ezininzi zempompo engaselunxwemeni, iivalvu zepiston yemigodi, kunye neenkqubo zokudosa iikhemikhali zomjikelo ophezulu: izihlalo eziqhelekileyo zentsimbi engenasici ziguguleka ngokukhawuleza. Ii-alloys ze-Stellite ezisekelwe kwi-Cobalt musa. Kodwa ayingabo bonke Ibhola yevalve yeStellite kunye nomzi-mveliso wezihlalo inikezela ngobulukhuni obungaguqukiyo, ukuhanjiswa kwekhabhide, okanye ukuphinda-phinda okulinganayo kuzo zonke iibhetshi-ingakumbi xa ijometri ibandakanya amabhanti okutywina, i-eccentric bores, okanye ubulukhuni obumbini.
Kutheni iStellite ingeyiyo nje “iNtsimbi eQinisayo”—Lukhetho lweNqanaba leNkqubo
I-Stellite ayiyonto enye. Lusapho-i-6, i-12, i-21, i-25-ine-cobalt njengomqolo (40-65%), i-chromium yokumelana ne-oxidation, i-tungsten yobunzima obushushu, kunye nekhabhoni ukwenza i-M enganyangekiyo.7C3 kunye noM23C6 iicarbides. I-AMS 5387 (Stellite 6) ibetha i-38–44 HRC njenge-cast kodwa ifuna unyango oluchanekileyo lobushushu ukunqanda ukubunjwa kwesigaba se-sigma. I-T800 alloy yongeza i-nickel yokumelana nokutshatyalaliswa kwe-thermal-ibaluleke kakhulu kwi-valve yokubuyisela i-oyile encediswa ngumphunga. Kanti ubulukhuni bodwa buyalahlekisa. Isihlalo se-Stellite esine-carbide embi yokusabalalisa iifractures phantsi komthwalo wempembelelo. Ibhola ene-porosity yokuphosa eyintsalela ivuza kwi-120°C. Yiyo loo nto ukusebenza okusebenzayo kuxhomekeke kubuchule obuthathu obunxibeleleneyo: ubuchule be-alloy, ulawulo lwenkqubo, kunye noqeqesho lwe-metrology-hayi nje ukufumana izinto ezikrwada.
Yintoni eyahlula iBhola yeStellite yeValve ethembekileyo kunye neFactory yesitulo kwezinye
Sivavanye ngaphezu kwababoneleli abangama-30 ababanga ubuchwephesha beStellite. Uninzi luyasilela kwelinye lamanqaku amathathu:
- Izithuba zokulandela umkhondo: Uluhlu lwezatifikethi "AMS 5387" kodwa ushiye iingxelo ze-spectrographic ezikhethekileyo, ubungakanani beenkozo, okanye iziphumo zovavanyo lwe-intergranular corrosion.
- Umonakalo owenziwe ngoomatshini: Ukusila ngokukrakra ngaphandle kokupholisa i-cryogenic kudala i-20-μm emhlophe yomaleko-i-micro-cracked, i-intempered, kwaye ilungele ukusabalalisa phantsi komthwalo we-cyclic.
- Ukutywinwa kwejiyometri drift: Iinkqubo ze-CNC zithatha izikhewu ezigqibeleleyo. Utyalo-mali lokwenyani lunoguquko oluyi-±0.3 mm ubukhulu bodonga. Ngaphandle kwembuyekezo yendlela yesixhobo eguquguqukayo, ibhendi yokutywina yokugqibela iyatenxa> 0.05 mm ukusuka kwi-angle yegama-ngokwaneleyo ukusika ubomi betywina ngama-60%.
E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Sivala ezi zithuba ngokuthe nkqo. Iziko lethu elithobela i-ISO liphethe ikhonkco elipheleleyo: i-vacuum-melted cobalt alloy ingots → ukuchaneka kotyalo-mali → ukususwa koxinzelelo lwemishini erhabaxa → ukunyangwa kobushushu be-carbide → ukugqitywa kwecontour ye-axis emihlanu → ukuhlolwa kwebhendi yokutywina eqinisekisiweyo ye-CMM. Ibhola nganye yevalve yeStellite ine-ID eyodwa edityaniswe nelog yayo yokunyibilika, ingxelo yeX-reyi, kunye nemephu yoburhabaxa bomphezulu. Akukho batch ishiya ngaphandle kokuqinisekisa ukuqina kwe-Rockwell C kwiindawo ezintathu-kwaye akukho zinqanawa zokuhlala ngaphandle kovavanyo lokuvuza kwe-helium kwi-1.5 × uxinzelelo lokusebenza.
Ukusebenza Kwehlabathi Lokwenyani: Apho Ukuchaneka Kudibana neSicelo
Omnye umxhasi woLwandle lwaseNyakatho wathatha indawo yesihlalo se-Stellite 21 esikhuphisana naye kwimpompo yodaka ebuyisela emva kweeyure ze-4,200 zenkonzo. I-Cavitation pitting yaphule i-subsurface layer. Batshintshela kwisitulo sethu se-AMS 5387-ijometri efanayo, izindlu ezifanayo-kodwa kunye nesithuba esincinci se-carbide (elinganiswa nge-SEM), umxholo ophantsi we-oxygen (<120 ppm), kunye ne-post-machining nitride diffusion layer. Isiphumo: iiyure ezingama-14,700 phambi kolungiso olucwangcisiweyo. Akunjalo ngenxa yokuba "yayinzima," kodwa ngenxa yokuba i-microstructure imelana namasuntswana oludaka oluludaka *kunye* nokuwa komphunga okwexeshana.
Enye imeko: isityalo sekhemikhali saseMzantsi-mpuma Asia sidinga iibhola ze-T800 ezingekho mgangathweni kwivalvu yemitha ye-diaphragm ephethe i-98% ye-asidi yesulfuric kwi-85°C. IStellite 6 eStandard is corrored kwi-stem interface. Sayilungisa kwakhona ibhola kunye ne-diffusion-bonded T800 cap phezu kwe-17-4PH engundoqo-eyenziwe kwisethingi enye yokuphelisa i-galvanic joints. Icandelo liphumelele uvavanyo lokuntywiliselwa lwe-ASTM G28A lweyure ye-1,000 kunye nokulahleka kwesisindo. Oku kwakungekho kwi-shelf. Yayiyijiyometri eqhutywa ngesinyithi.
Ukukhetha iBhola yeStellite Valve kunye neSeat Factory—Buza le mibuzo
Phambi kokusayina i-NDA, buza umthengisi wakho:
- Ngaba ungabelana ngengxelo yamva nje ye-spectrographic ye-AMS 5387-ebonisa eyona W, C, kunye nenqanaba le-Si ngokuchasene nemida ethile?
- Ngaba ulinganisa iqhekeza levolumu ye-carbide (ngohlalutyo lomfanekiso) kuyo yonke into-okanye ubunzima nje?
- Ubuyekeza njani ngokuphosa ukucutheka kwinkqubo yakho ye-CNC? Ngaba usebenzisa idatha ye-CT-scan ukulungisa iindlela zesixhobo?
- Bubuphi uburhabaxa bakho obuphezulu obuvumelekileyo (Ra) kwibhendi yokutywina-kwaye uyiqinisekisa njani ngokubona, hayi nje isimbo sokubhala?
- Ngaba ungabonelela ngokulandeleka ngokupheleleyo ukuya kutsho kwinani lelode ye-electrode esetyenziswa kwi-vacuum arc remelting?
Ukuba iimpendulo azicacanga, zilibazisekile, okanye imigangatho yereferensi yegeneric endaweni ye-callouts yeGD&T yomzobo wakho-hamba uhambe. Izixhobo zeStellite aziyompahla. Ziyinkqubo-ebaluleke kakhulu ujongano apho impazamo ye-0.01 mm ixabisa ixesha lokuphumla, hayi iidola.
Kuba iinjineli ezichaza ukutywinwa kokusebenza okuphezulu kwiindawo ezirhabaxa, i Ibhola yevalve yeStellite kunye nomzi-mveliso wezihlalo owukhethayo kufuneka uphathe i-metallurgy, machining, kunye ne-metrology njengezifundo ezingenakuhlukaniswa-hayi amanyathelo alandelelanayo. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yakha oku kudityaniswa kumsebenzi wayo yonke imihla. Ugxininiso lwayo luhlala luncinci: ukusombulula ukuguga, ukubola, kunye nokungaphumeleli kokukhathala kwi-mission-critical fluid control-ukuqala ngento eyenzekayo apho isinyithi sidibana nesinyithi, umjikelezo emva komjikelezo, uxinzelelo emva koxinzelelo. Ngexesha elizayo xa ivalve isilela kwangaphambi kwexesha, jonga ngaphaya kophawu. Hlola ukuhanjiswa kwe-carbide yesihlalo. Kulapho ukuqina kokwenyani kuqala.
