Amacandelo amashishini asebenzayo aphezulu awanyamezeli ukuxhatshazwa-ingakumbi xa esebenza phantsi kwe-300 bar hydraulic pressure, i-600 ° C yokukhupha i-gas exposure, okanye i-abrasive abrasive eqhubekayo kwinkonzo yeoli. Yiyo loo nto iinjineli kwi-Tier-1 yepompo ye-OEMs kunye nezihlanganisi zenkqubo yolwelo loxinzelelo olukhulu zisiya zigqitha kubunjwa bemveli kwaye zijike imveliso yesinyithi yomgubo wesinyithi izisombululo-kungekhona njenge-fallback, kodwa njengendlela yodwa esebenzayo yokuzinza kwe-dimensional, i-microstructural consistency, kunye nokuthembeka okusebenzayo kumacandelo e-cobalt-nickel njenge-AMS 5387 yezindlu zepompo okanye i-T800 i-alloy nozzles.
Kutheni i-Powder Metallurgy iphumelela apho ukutshiza kukodwa kusilele
Siye sayibona ngokuphindaphindiweyo: umthengi uthumela umzobo we-GD & T-rich kwiplagi ye-cobalt alloy kunye ne-0.01 mm ukunyamezela kwesigxina kwimingxuma emithandathu eyimfama-kwaye ilindele ± 0.005 mm ukulawulwa kobunzima bodonga kwi-contour ye-radius ye-120 mm. CNC machining ukusuka billet eqinileyo? Okunokwenzeka-kodwa amazinga e-scrap anyuka ngaphezu kwe-40% ngenxa yokuqina komsebenzi, ukuchithwa kwesixhobo, kunye nokusabalalisa i-micro-crack kwi-AMS 5387. Utyalo-mali lokuphosa? Isivuno esingcono, kodwa iingozi ze-porosity zibangela i-100% ukuhlolwa kwe-ultrasonic-kwaye akukho siqinisekiso sokusasazeka kwe-carbide efanayo.
Iibhulorho zesinyithi somgubo eso sikhewu. Ngokucinezela i-isostatically eshushu (HIP) i-Co-Ni-Cr-Mo powder esele ifakwe ngaphambili, sitshixa kuxinaniso olusondeleyo lwethiyori * phambi komatshini wokugqibela. Isiphumo? Akukho voids yangaphakathi. Akukho kungahambi kakuhle kokuhamba okuziinkozo. Akukho ukuphazamiseka kwe-thermal ngexesha lonyango lokushisa. Kwaye ngokubaluleke kakhulu-akukho sidingo sokususa i-70% yezinto ezikrwada ukufikelela nje kwimilo yenetha. Omnye umenzi wempompo waseMntla waseMelika unqumle ixesha lokukhokela ngama-36% kunye neendleko zizonke ngenxalenye nganye ngama-29% emva kokutshintsha ukusuka kwi-forged-to-machined ukuya kwi-HIP + kwizindlu ze-cylinder ezigqityiweyo.
Izakhono ezine ezingaxoxisiyo kufuneka uziqinisekise
Yinyani imveliso yesinyithi yomgubo wesinyithi ayichazwa ngokuba ngumnini woshicilelo-ilinganiswa ngokuba ilawula ngokuqinileyo imimandla emine exhomekeke komnye:
- Ukulandeleka kwezinto ezikrwada: Yonke ibhetshi ye-T800 okanye i-AMS 5387 powder kufuneka ithwale ii-certs ze-mill ezipheleleyo-kungekhona nje ukubunjwa, kodwa umxholo we-oxygen (<150 ppm), ukuhanjiswa kobungakanani besuntswana (D50 = 15–25 µm), kunye nedatha yempompo yoxinaniso. Siyala amaqashiso omgubo ngaphandle kweeparitha eziqinisekisiweyo ze-HIP ezifakwe kwinani ngalinye lobushushu.
- Inkqubo yoqeqesho lwe-HIP: Uxinzelelo lodwa aluqinisekisi ukuxinana. Umjikelo wethu we-HIP ubamba i-1150 ° C kwi-150 MPa kwiiyure ze-3-ke ipholile kwi-≤5 ° C / min phantsi kwe-argon. Ukushenxa nge-10 ° C okanye i-10 MPa, kwaye ubeka umngcipheko wokungaphelelanga kwe-diffusion bonding kwi-particle interfaces.
- Ukunyaniseka kwe-Post-HIP: Amalungu e-HIP ayancipha i-anisotropically-ukuya kwi-0.18% axially, i-0.09% i-radially. Inkqubo yethu ye-CNC ibuyekeza kusetyenziswa iimephu ezicuthayo eziskenwe ngelaser, hayi ii-generic offsets. Yiloo ndlela esibamba ngayo ± 0.008 mm kwi-ID yepiston emva kokusila kokugqibela.
- Ukuqinisekiswa okusebenzayo ngaphaya kweCMM: Umlinganiselo ogqibeleleyo wolungelelaniso awuthethi nto ukuba inxalenye iyasilela kuvavanyo lokuqhuma. Siqinisekisa zonke izindlu zevalve yoxinzelelo kwi-1.5 × ingcinezelo yokusebenza kwimizuzu ye-60-ngexesha langempela lokubonisa imephu nge-digital image correlation (DIC).
Xa Hybrid Casting-Machining Beats Pure PM
Ezinye iindawo zidelela iindlela zomgubo ococekileyo. I-winch centre shaft roller idinga umaleko wangaphandle we-T800 ongagugiyo-kodwa undoqo wayo kufuneka ufunxe imithwalo yokothuka ngaphandle kokuqhekeka okuncinci. Apha, i-substrate yethu ye-sand-cast steel ingena nge-alloy ye-cobalt etyhidiweyo phantsi kwe-vacuum, emva koko i-HIP iphathwe njengeyunithi enye. Amandla ebhondi adlula i-620 MPa-iqinisekiswe yi-cross-section SEM/EDS. Abathengi abazame ukugquma baqale baxela ukudodobala emva kwe-4,200 imijikelo; inguqulo yethu ye-hybrid iphumelele imijikelo ye-18,500 kuvavanyo lokukhathala komntu wesithathu.
Oku akuyothiyori. Yiloo nto esivumela ukuba sihambise iijiyometri ezingekho mgangathweni-ezifana neziseko zempompo ezidikwe ngokwendalo ezinamatshaneli okupholisa adityanisiweyo-ezinokufuna ukuseta okuhlanu okwahlukeneyo kwigiya eqhelekileyo. Sizitshiza kwimisebenzi emibini: i-HIP erhabaxa + igqibezela kwi-5-axis mill kunye ne-live-tooling kunye ne-B-axis tilt.
Yintoni omawuyifune ngaphambi kokuba ukhulule i-PO
Buza umthengisi wakho le mibuzo mithathu-kwaye uhambe ukuba iimpendulo azicaciswanga:
- "Ndibonise iilogi ezintathu zokugqibela ze-HIP ze-AMS 5387-ibalaselisa irempu yeqondo lokushisa, ixesha lokuhlala, kunye neengxelo ze-metalography zasemva komjikelo."
- "Ukuqinisekisa njani ukungabikho kwe-micro-porosity engaphantsi kwe-25 µm? Ngaba yi-X-ray CT, uhlalutyo lwesigaba se-ultrasonic, okanye ukwahlula okutshabalalisayo?"
- "Ukuba umzobo wam uchaza i-ASME B16.34 yodidi lwama-900 loxinzelelo, ithini iprothokholi yakho yovavanyo olubhaliweyo lokuvuza-kwaye lithini izinga lakho lokupasa ngokwembali?"
E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ezo zigodo ziyakwazi ukuphicothwa kwiiyure ezi-2. Uvavanyo lwethu lokuvuza lusebenzisa i-helium mass spectrometry kwi-1 × yoyilo loxinzelelo lwe-120 imizuzwana-izinga lokupasa: 99.87% ngaphezu kwe-14,200 iinxalenye ezithunyelwa ukususela kwi-Q3 2022. Sabelana ngeedosi zokuhlola ezipheleleyo-kungekhona izishwankathelo-kunye nokuthunyelwa kwazo zonke.
Kwizinto ezibaluleke kakhulu kwimishini, i-metallurgy yomgubo ayikho malunga nokunciphisa iindleko. Kumalunga nokuphelisa iindlela zokungaphumeleli ngaphambi kokuba bangene kumgca wendibano yakho. Ukuba iprojekthi yakho elandelayo ifuna i-AMS 5387, T800, okanye ezinye iindawo ezichanekileyo ezichanekileyo apho ijometri, ingqibelelo, kunye nokuphindaphinda kungaxoxiswana-udinga ngaphezulu kwe imveliso yesinyithi yomgubo wesinyithi. Udinga enye ephatha yonke inombolo yobushushu njengophawu lweminwe, umjikelo ngamnye we-HIP njengenkqubo yotyando, kunye nengxelo nganye ye-CMM njengoxwebhu olusemthethweni. Lowo sisiseko. Nantoni na encinci ibeka emngciphekweni ixesha lakho, amabango akho ewaranti, kunye nodumo lwakho.
