Ukunikezwa kwefekthri kwe-QT450-10 akuyona nje into ebonakalayo—isithembiso sokusebenza. Lapho imizimba yamavalvu e-hydraulic, izindlu zephampu, noma ama-winch center shafts kumele zimelane nokukhathala ngaphansi kokulayisha okujikelezayo kuyilapho ibambe ukubekezelela okuqinile kwe-GD&T, i-QT450-10 ductile iron iletha ibhalansi elungile: amandla aqinile angu-450 MPa, ubude obuncane obungu-10%, kanye nokukwazi ukubikezela ngemva kokudonsa. Kepha ukuthola ukusakazwa kwe-QT450-10 akukhona ukuthola *noma iyiphi* isisekelo. Imayelana nokusebenzisana nomphakeli olawula i-metallurgy ukusuka ku-ladle kuya e-lathe-futhi yilapho ukuhlanganisa okuqondile kuba okungaxoxiswana khona.
Kungani i-QT450-10 Idinga Okungaphezu Kokusakaza Okujwayelekile
Sibone amaphuzu amathathu okuhluleka avamile kumaphrojekthi we-QT450-10: i-nodularity engaguquki ebangela ukuphuka ngaphambi kwesikhathi emakhoneni anengcindezi ephezulu; ukuhlanekezela okudalwe yizinsalela ngesikhathi somshini wokugcina we-CNC; kanye nama-microcracks angaphezulu kwembulwa kuphela ngemva kokuhlolwa kwengcindezi. Lokhu akukona "amaphutha" okukhiqiza. Ziyizimpawu zokugeleza komsebenzi okuhlukene—lapho ukulingisa, ukwelashwa kokushisa, nomshini kwenzeka kubathengisi abahlukene abanamafasitela enqubo angafani.
Izakhiwo zemishini ye-QT450-10 zincike ekulawulweni okunembile kokwelashwa kwe-magnesium, isikhathi sokujova, kanye nezinga lokupholisa esikhunjeni. Ukuchezuka okungu-3°C ekutheleni izinga lokushisa kungashintsha isibalo samaqhuqhuva ngo-20%. Kungakho ukulandelelwa kwempahla eluhlaza okuqinisekisiwe kubalulekile—hhayi njengamaphepha, kodwa njengesixhumanisi esibukhoma semibiko yokuhlaziya i-ladle kanye namalogi omlando oshisayo. Esikhungweni sethu se-Qingdao, iqoqo ngalinye le-QT450-10 liphethe ukwakheka kwamakhemikhali okugcwele (C: 3.4–3.8%, Si: 2.2–2.8%, Mg: 0.03–0.06%), imigoqo yokuhlola eqinile esakazwa eduze kwezingxenye zokukhiqiza, kanye nemephu yokuqina kuwo wonke ugqinsi lwezigaba.
Lokhu akulona ithiyori. Ngonyaka odlule, i-OEM yepompo yase-Europe yashintshela kithi ngemva kokuba abahlinzeki ababili bangaphambili behlulekile ukuzinza kwe-dimensional kuzindlu zamasilinda ezinezingxenye zodonga ezingu-120 mm. Umthengisi wabo wasekuqaleni wasebenzisa isikhunta sesihlabathi esinezibophezelo zobumba ezivamile—okubangela ukupholisa okungalingani kanye nokuhlanganisa i-pearlite. Sishintshele esihlabathini esiboshwe nge-resin esinomoya olawulwayo futhi sengeza i-post-cast stress-relief ku-580°C amahora angu-4. Umphumela: ukuhlanekezela kwehlile kusuka ku-±0.18 mm kuya ku-±0.06 mm—ngaphakathi kwendawo yokubekezelela ye-CMM.
Kusho Ukuthini “Ifekthri Eqondile” Ngempela Kubathengi Be-QT450-10
Abanye abahlinzeki bazibiza ngokuthi “imboni ye-QT450-10” ngenxa yokuthi bangabanikazi bendawo. Abanye bathola leso sihloko ngenxa yokuthi bangabanikazi balo lonke uchungechunge lwenani—kusuka ekuncibilikeni kwengxubevange nokusakazwa ngama-axis amahlanu, ukuchama kwesibhamu, nokuhlola ukuvuza kwe-helium. Umehluko ubonakala ekushintshanisweni kwesikhathi sokuhola, isivinini sokuphindaphinda kwedizayini, kanye nokulungiswa kwembangela yezimpande.
- Isandla sokusakaza-kuya-machini senzeka esakhiweni esisodwa: Akukho ukubambezeleka kwezinto, akukho monakalo wokubamba kabusha, akukho ukuxhumana okungalungile mayelana nezithenjwa zedatha.
- I-GD&T iqinisekiswa ngaphambi kokuthi kuqale ukusebenza: Ithimba lethu le-metrology liskena izingxenye ezisakazwayo lisebenzisa izikena zokukhanya ezihlelekile—ukuqhathanisa indawo yangempela ne-CAD yegama ukuze kulungiswe izindlela zamathuluzi zokuhlukahluka kwesitoko.
- Ukwelashwa kokushisa kuhlanganisiwe, hhayi ngaphandle: Sisebenzisa imigqa yokunamathisela eqhubekayo enamaphrofayili ahlelekayo we-ramp/soak/apholile, aqashwe nge-ASTM E2862 ngayinye, namashadi omlilo agcinwe kungobo yomlando kuyo yonke indawo.
Lokho kuhlanganiswa kunciphisa ukuguqulwa kwesibonelo kusuka kumaviki ayi-12 kuye kwangama-5. Kuma-oda evolumu emaphakathi (ama-pcs angu-500–5,000/ngonyaka), kuqeda “i-foundry bottleneck” ephoqa abathengi ukuthi babambe isitoko sokuphepha sezinyanga eziyisi-6. Ikhasimende elilodwa laseNyakatho Melika lehlise izindleko zokuphatha impahla ngo-37% ngemva kokushintshela kumodeli yethu yefekthri ye-QT450-10 eqondile.
Lapho i-QT450-10 Inganele—Futhi Okufanele Ukwenze Kunalokho
Abanye onjiniyela bazenzakalela ku-QT450-10 kuzo zonke izinhlelo zokusebenza ze-iron ductile. Kodwa siyeluleka ngenye indlela lapho: amazinga okushisa okusebenza edlula i-300 ° C (ukubola kwe-pearlite kuyashesha); ukumelana nokugqoka kubalulekile (isb., ama-piston ring grooves); noma ukuchayeka kokugqwala kufaka phakathi ama-chloride noma i-H₂S. Kulezo zimo, i-QT500-7 inikeza amandla aphezulu kodwa i-ductility ephansi-noma i-cobalt alloy T800 iletha 3× impilo yokugqoka ku-650 ° C.
Nakhu esikwenzayo esikhundleni salokho: sebenzisa i-triage yezinto ngesikhathi sokubuyekezwa konjiniyela. Uma ingxenye ibona >200 MPa ukushintshana kwengcindezi, silingisa impilo yokukhathala sisebenzisa indlela yokucindezeleka yasendaweni ku-nCode DesignLife. Uma ubulukhuni bobuso kufanele budlule ku-350 HB, sincoma amamaki e-austempered ductile iron (ADI) njenge-ASTM A897 Grade 2. Uma i-geometry inezimbambo ezincane (<8 mm) ethambekele ekuncipheni i-porosity, sishintshela ekutshalweni kwezimali—ngisho nakwi-ductile iron—ukuze siqinisekise ukuzwakala.
Lokhu akumangalisi. Ivimbela ukwehluleka kwenkambu. Senqabile izingcaphuno eziyi-17 ze-QT450-10 ezinyangeni eziyi-18 ezedlule ngoba isicelo sifune okunye okunye. Ukuthembana kuqala lapho.
Ukukhetha Uzakwethu We-QT450-10: Amasheke Amathathu Angaxoxiswana
Ngaphambi kokusayina i-NDA, buza le mibuzo—futhi ufune ubufakazi:
- Ungakwazi ukungibonisa imibiko yokuhlaziywa kweladle emithathu yokugcina ye-QT450-10? Hhayi nje izitifiketi—okuphrintiwe kwangempela okunesigxivizo sesikhathi, i-ID yomsebenzisi, namalogi wokulinganisa we-spectrometer.
- Ingabe wenza ukuhlola kwe-ultrasonic ekubumbeni okukhulu kuno-50 mm? I-ASTM A609 Level 3 indinganiso yezingxenye ezibaluleke kakhulu kumfutho. Uma bethi “ngesicelo kuphela,” hamba.
- Iyiphi i-Cpk yakho embi kakhulu yamandla e-tensile ku-QT450-10 ezinyangeni eziyi-12 ezedlule? Noma yini engaphansi kuka-1.33 isho ukungazinzi kwezibalo. Okwethu kungu-1.68.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenzisa imboni ye-QT450-10 eyakhelwe izingxenye ezibalulekile zemishini—hhayi ukusakazwa kwempahla. Asizigcini izikhala ezijwayelekile. Sikhiqiza ama-asemblies asebenzayo: amavalvu okucindezela anezindawo zezihlalo ezididiyelwe, izisekelo zokumpompa ezinezimbobo ezigoqekayo ezithephwe ngaphambili, ama-winch shaft roller anemigwaqo yomjaho eqinile—konke kusuka ekubunjweni kwe-single-pour QT450-10. Lokho kugxila kusivumela ukuthi silungise izinqubo abanye abangazinaki: ukulawulwa kwe-graphite morphology ngokusebenzisa izijovo zomhlaba ezingavamile, ukukhishwa kwegesi okusizwa ukudlidliza ukuze kuncishiswe i-hydrogen porosity, kanye nokuqinisekiswa kwe-nodularity okungaphakathi kwenqubo kusetshenziswa ukuhlaziya isithombe okuzenzakalelayo.
Isinyathelo esilandelayo asikuceli ukucaphuna. Ithumela umdwebo wakho ukuze uthole impendulo yokwenziwa—ngaphandle kweyunithi yezinhlamvu enamathiselwe. Ngoba i-QT450-10 ehamba phambili yochungechunge iqala ngaphambi kokuthela kokuqala.
