Izimboni zesimanje ze-powder metallurgy azisagcini nje ngokucindezela izimpushana zensimbi—zikha ama-microstructures. Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., siyibonile indlela intuthuko yokusebenza kwefekthri ye-powder metallurgy ekulolonga ngokuqondile ukusebenza kwengxenye kumaphampu adonsa amanzi, amavalvu anomfutho ophezulu, kanye nemibhobho ye-cobalt-alloy. Ukuthunyelwa komhlaba wangempela—hhayi ithiyori yelebhu—kugqugquzela ukuthuthukiswa kwethu. Lapho indlu yephampu ye-cobalt alloy ye-AMS 5387 yekhasimende yehluleka ukuzinza ngemuva kokwelashwa kokushisa, asiyilandelinga ekungqubuzaneni kwezinto ezibonakalayo, kodwa ekulawuleni okuphelelwe yisikhathi kwe-sintering atmosphere. Leso sigameko siqalise ukuhlolwa kabusha okuphelele kochungechunge lwethu lokucubungula okushisayo. Namuhla, "intuthuko efektri ye-powder metallurgy" isho ukubekezelelana okuqinile, ukuminyana okuphindaphindwayo, kanye namaphasi ambalwa omshini we-post-sinter-hhayi nje izikhathi zomjikelezo osheshayo.
Ukunemba Kuqala Ngaphambi Kokuhlanganiswa
Onjiniyela abaningi bacabanga ukuthi ukunemba kwe-powder metallurgy kuncike kumklamo wokufa noma ukucindezela amathani. Empeleni, iqala nge conditioning impahla eluhlaza. Manje sihlola kusengaphambili zonke izimpushana ezisekelwe ku-T800 kanye ne-cobalt-nickel sisebenzisa i-laser diffraction kanye nemephu ye-SEM morphology—hhayi nje ukuhlaziya isisefo. Kungani? Ngoba ukuhlukahluka okungu-5% ku-particle sphericity kushintsha ukusatshalaliswa kokuminyana okuluhlaza kufika ku-0.12 g/cm³ kuwo wonke amajiyometri ayinkimbinkimbi njengezindlu zesilinda sephampu ye-piston. Isistimu yethu yokuphakelayo ebuyekeziwe isebenzisa ukulinganisa okudlidlizayo ngempendulo yesikhathi sangempela sokugeleza kwesisindo, ukusika ukuchezuka kokuminyana kwenqwaba ukusuka ku-±0.08 g/cm³ ukuya ku-±0.03 g/cm³. Lolo shintsho oluncane luqeda u-70% we-athikili yokuqala ye-CMM esebenza kabusha emizimbeni yamavalvu anezindonga ezincane ezinezindonga. Siphinde sasuka ku-nitrogen-kuphela saya kuma-dual-gas (N₂ + H₂) emkhathini we-sintering we-cobalt alloys—sehlisa izinsalela ze-oxide ngo-92% futhi sivumela izilinganiso zokuqeda eziqondile ze-Ra 0.8 µm ngaphandle kokugaya kwesibili.
Ukukhiqiza Okuxubile Kuvala Igebe Phakathi Kokusakaza Nomshini
Abanye bangase baphikise i-powder metallurgy ayikwazi ukufana nokufaka utshalomali kumavesi angaphakathi ayinkimbinkimbi. Kodwa lokho sekuphelelwe yisikhathi. Intuthuko yethu yakamuva ihlanganisa ukuhlanganiswa kwe-PM eseduze komumo nenetha nokufaka amathuluzi omshini we-CNC—okusivumela ukuthi sishumeke iziteshi zokupholisa, amaphakethe ezihlalo zamavalvu, kanye nemigqa yokukhulula intambo *entweni eluhlaza* ngaphambi kokucwilisa. Kumarola e-winch center shaft asetshenziswa ezimotweni zobunjiniyela, lokhu kwehlisa isikhathi esiphelele sokuhola ngo-40% futhi kunqamule imfucuza yezinto ezingavuthiwe ngo-65%. Ngokudabukisayo, le nqubo ilondoloza ukuqondanisa okusanhlamvu kuzo zonke izindawo ezibucayi zokucindezeleka: amandla aqinile ku-arc ethwala umthwalo werola ahlala ngaphakathi ku-±2% wokucaciswa, ngisho nakububanzi obungu-120 mm kanye nesisindo esingu-2.8 kg. Siqinisekisa zonke izingxenye ezixubile ngemephu yokuqina kwe-ultrasonic ngaphambi nangemuva kwe-sinter—akukho ukuqagela, idatha elinganiselwe kuphela.
Ukulandelelwa Akukhona Ukuthobelana—Kuwukulawula Okubikezelwayo
I-ISO 9001 idinga ukulandeleka. Lokho engakugunyazi—futhi lokho amakhasimende ethu akudingayo ngempela—ukulandelela ukubikezela. Iqoqo ngalinye le-AMS 5387 powder liphatha iphasiphothi yensimbi exhunywe ku-QR: amajika osayizi wezinhlayiyana zokusabalalisa, amalogi wokuqukethwe komoyampilo, kanye namasiginesha e-sintering thermograph. Uma ikhasimende libika ukuguga kwe-marginal kupulaki ye-cobalt alloy, sidonsa leyo pasipoti futhi siyibhekise ngokuphambanayo ngamalogi okulinganisa isithando somlilo kusukela ngeviki elifanayo. Ngekota edlule, lokhu kumake ukukhukhuleka okucashile kuzinzwa zendawo yamazolo—okubangele ukuhwamuka kwe-carbide endaweni ku-3.2% wezingxenye. Siyibambe ngaphambi kokuthunyelwa. Ukulandelelwa okugcwele akuphathelene namaphepha; imayelana nokuhlukanisa imbangela engaphansi kwemizuzu engama-90. Lelo khono libaluleke kakhulu ezingxenyeni ezingajwayelekile lapho i-geometry nomsebenzi kungenakuhlukaniswa.
Yini Okulandelayo? Hhayi Nje Impushana Engcono—Ukuhlanganisa Okukhaliphile
Intuthuko emisebenzini yefekthri ye-powder metallurgy ngeke ivele emishinini yokunyathelisa emikhulu noma kuma-conveyor asheshayo. Zizovela ekuhlanganiseni okuqinile phakathi kwesayensi yezinto ezibonakalayo, imodeli eshisayo, nokuhlolwa kokusebenza. Njengamanje, sishumeka ama-gauge ohlobo lwe-strain fixtures ukuze sihlobanise amazinga okunweba okushisayo nokuhlanekezela kokugcina kuzisekelo zephampu. Siphinde siqinisekise amamodeli angamawele edijithali ngokumelene nokuskena kwangempela kwe-CMM kokusakazwa kwensimbi eyi-sintered engu-120+—ukuqeqesha ama-algorithms ukubikezela i-warpage ngaphambi kokushaywa komshini wokuqala. Lokhu akukona ukuhlolwa kwe-R&D. Angamathuluzi okukhiqiza asatshalaliswe kuyo yonke indawo yethu ye-Qingdao kulo nyaka. Kumakhasimende athola izingxenye zensimbi ezinembayo, lokhu kusho ama-oda ambalwa okushintsha ubunjiniyela, isivuno esiphezulu sephasi yokuqala, nokuvumelana okuqinisekisiwe—hhayi nje ukuphrinta, kodwa empilweni yesevisi. Ikusasa le-powder metallurgy alizona izingxenye eziminyene. Izingxenye ezaziyo imingcele yazo ngaphambi kokuba zihambe efektri.
