Ukukhetha into efanele kuyisinqumo esisodwa esibaluleke kakhulu kunoma iyiphi iphrojekthi yokutshala imali. Ingxubevange ayinqumi kuphela ukusebenza komshini nempilo yesevisi yengxenye kodwa futhi nezindleko zayo, ukusebenziseka kalula, isikhathi sokuhola, ngisho nemingcele yenqubo yokuphonsa ngokwayo. Kwa-Ningbo Ruican (KST Casting), sesichithe iminyaka engaphezu kwengu-17 sisiza onjiniyela be-OEM ukuthi bazulazule kulesi sinqumo kuzo zonke izinhlelo zokusebenza zezimoto, ivalvu, ezolimo, ezokwakha, nezimboni. Lo mhlahlandlela uhlakaza lokho okuhlangenwe nakho kuhlaka olusebenzayo lokuqhathanisa ama-alloys nezinhlelo zokusebenza.
Kungani Ukukhethwa Kwezinto Ezibalulekile Kubaluleke Kakhulu Ekutshalweni Kwezimali
Inzuzo eyinhloko yokusakazwa kotshalomali inkululeko yokuklama — amajiyometri womumo we-net-net-shape, izindonga ezincane, nezici zangaphakathi okungenakwenzeka ukuzifeza ngokufoja noma ukwenza isihlabathi. Kodwa leyo nkululeko iphakamisa izithiyo ekukhetheni izinto ezibonakalayo. Inqubo yokufaka utshalomali ingaphansi kwama-alloys kumazinga okushisa ensimbi encibilikisiwe agcinwe kumagobolondo e-ceramic, futhi umndeni ngamunye wengxubevange usebenzisana ngendlela ehlukile kuleyo ndawo: izinsimbi zekhabhoni ziyathethelela, amamaki angenasici adinga umoya olawulwayo, futhi ama-superalloy adinga ukuphathwa okushisayo okunembayo. Ukukhetha ingxubevange yesisetshenziswa sakho ongeke ukwazi ukuyiphatha ngendlela eqhubekayo iresiphi ye-porosity, ukufakwa, nokubambezeleka kokulethwa.
Imibuzo Emihlanu Esungula Noma Isiphi Isinqumo Se-alloy
Ngaphambi kokuvula idatha yedatha, phendula le mibuzo emihlanu nethimba lakho lokuklama:
- Iyiphi imithwalo ezothwala ingxenye? Amandla aqinile, ukuhamba ngebhayisikili kokukhathala, kanye nomthelela wephuzu ngalinye emikhayeni ehlukene yengxubevange.
- Izosebenzela yiphi indawo? Imidiya ebolayo, izinga lokushisa eliphakanyisiwe, nokuthinta okulimazayo kunweba inkambu ngokushesha.
- Yiziphi izidingo zokubekezelela kanye nezinga eliphezulu? Amanye ama-alloys abamba ukubekezelelana okuqinile njenge-cast kunabanye.
- Ingxenye izokwenziwa kanjani ngomshini? Ama-alloys aqinile akhuphula isikhathi sokusebenza kanye nezindleko zamathuluzi.
- Ingabe isicelo siqinisekisani ngempela? Ukucacisa izinto eziningi kuyiphutha elivame kakhulu - futhi elibiza kakhulu - lokukhetha.
Izinsimbi ze-Carbon kanye ne-Low-Alloy: Ama-Workhorses
Amabanga ajwayelekile : AISI 1020/1030/1045, AISI 4130, AISI 4140/42CrMo4, AISI 8620, 16MnCr5
Izinsimbi zekhabhoni ne-low-alloy zenza iningi lokutshala imali ngevolumu, futhi ngesizathu esihle. Banikeza ibhalansi enhle kakhulu yamandla, ukuqina, ukushisela, kanye nezindleko - ngokuvamile izindleko zezinto ezibonakalayo eziphansi kakhulu ngekhilogremu ngayinye yanoma iyiphi ingxubevange yobunjiniyela esakazwayo.
- I-AISI 1020/1030 (ikhabhoni engenalutho) : Ilungele kubakaki, amalevu, izindlu, nokufakwa lapho amandla amaphakathi (400–600 MPa tensile) enele. Excellent machinability.
- I-AISI 4130/4140 (i-chromium-molybdenum) : Inketho ezenzakalelayo yezingxenye ezinokucindezeleka okuphezulu - imizimba yamavalvu e-hydraulic, izinduku zokuxhuma, amagiya, kanye nempahla yenkundla kawoyela. I-4140 ecishiwe futhi ethukuthele ifinyelela ku-930+ MPa amandla okuqina ngokumelana nokukhathala okuhle.
- I-AISI 8620 (i-nickel-chromium-molybdenum) : Icaciswe lapho kudingeka khona ukuqina kwekesi - izikhala zegiya, ama-camshaft, nezindawo ezigqokwayo ezidinga ikesi eliqinile le-carburized phezu komgogodla oqinile.
Ithiphu yokukhetha : Uma ingxenye yakho isebenza endimeni yesakhiwo engaphansi kuka-300 °C ngaphandle kokuchayeka kokugqwala okubalulekile, insimbi enengxubevange ephansi cishe njalo iyimpendulo eyonga kakhulu. Ungathuthukeli ku-stainless ngaphandle kwesizathu esiqhutshwa ukugqwala - iprimiyamu yezindleko ngu-2–4×.
Izinsimbi Ezingagqwali: Ukugqwala Nokumelana Nokushisa
Amabanga ajwayelekile : CF8/304, CF8M/316, CA15/410, 17-4 PH, 2205 duplex
Izinsimbi ezingenasici zibusa ku-valve, iphampu, ukucubungula ukudla, ukusetshenziswa kwasolwandle namakhemikhali. Ukutshala imali kusingatha amamaki angenasici, nakuba ukuncibilika okulawulwayo kanye nesimo sezulu segobolondo kubalulekile ukugwema ukuqoqwa kwekhabhoni kanye nokufakwa kwe-oxidation.
- I-CF8 (304) : Ibanga lenhloso evamile le-austenitic lamanzi, ukudla, kanye nesevisi yamakhemikhali athambile. Ukumelana nokugqwala okuhle, ukwakheka okuhle kakhulu, okungewona uzibuthe.
- I-CF8M (316) : Yengeza i-molybdenum yokumelana ne-pitting ngokumelene nama-chloride - ukukhetha okujwayelekile kokukhipha usawoti emanzini, i-marine hardware, imizimba yama-valve amakhemikhali, kanye nemishini yokwenza imithi.
- I-CA15 (410) / CA6NM (410NiMo) : Amamaki e-Martensitic angenasici ahlanganisa ukumelana nokugqwala okumaphakathi namandla aphezulu - asetshenziswa kubagijimi bama-turbine, i-valve trim, nama-pump shafts.
- 17-4 PH : Imvula-iqinisa insimbi engenasici iletha amandla aqinile angu-1,100+ MPa anokumelana nokugqwala okuhle. Ukuya kweziqu zama-valve ezisebenza kahle kakhulu, ukufakwa kwe-aerospace, kanye namathuluzi.
- I-Duplex 2205 : Icishe iphindwe kabili amandla esivuno angu-316 ngokumelana nokuqhekeka kwe-chloride ephakeme kwe-stress-corrosion, emsebenzini wamakhemikhali ogwini lolwandle kanye nolaka.
Ithiphu yokukhetha : Qondanisa ibanga elingenasici kumshini othile wokugqwala. I-304 ihluleka ezindaweni ze-chloride lapho i-316 isinda khona; I-316 ngokwayo inikezela ekuqhekekeni kwe-stress-corrosion lapho amamaki ayi-duplex engenzi.
I-Ductile Iron ne-Grey Iron: I-Damping kanye Nenani
Amabanga ajwayelekile : QT400-18, QT450-10, QT500-7, QT700-2, GG25
Nakuba iningi lihlotshaniswa nokusakazwa kwesihlabathi, i-ductile iron iphinde ibe yi-investimenti - ikakhulukazi ezingxenyeni lapho inhlanganisela yayo eyingqayizivele yamandla, ukumanzisa, kanye nokuqina kwensimbi eseduze ngezindleko eziphansi kubaluleke kakhulu.
- I-QT450-10 / QT500-7 : Izindlu zesakhiwo, izisekelo ze-axle, izingxenye zokumiswa. Ukwelulwa kwe-7-10% kunikeza ukuqina kwangempela.
- I-QT700-2 : Izinhlelo zokusebenza ezinamandla aphezulu - izindlu zokugcina zokushayela, ama-crankshafts, amagiya - lapho ukuncibilika kokudlidliza namandla acindezelayo kubaluleke khona.
- I-GG25 (i-iron empunga) : Izingxenye ze-Compressor namabhuleki lapho ukuthambisa kanye nokuhanjiswa kwe-thermal kudlula izimfuneko zokushuba.
Ama-Copper Alloys: Ama-Bearings kanye Nesevisi Yasolwandle
Amabanga ajwayelekile : C95800 NiAl bronze, C83600 yethusi ebomvu, C95400 aluminium bronze
Ama-alloys ethusi athola indawo yawo lapho insimbi ingakwazi ukuya khona: izindawo zasolwandle ezicwilisiwe, izinhlelo zokusebenza ezithwalayo nezinyakazayo, kanye namathuluzi angenayo inhlansi emkhathini oyingozi.
- I-C95800 Nickel-Aluminium Bronze : Izinga le-propeller yasolwandle — 600+ MPa tensile, i-cavitation enhle kakhulu kanye nokumelana nokugqwala kwamanzi olwandle, kanye nezakhiwo zokulwa nokungcolisa.
- I-C95400 Aluminium Bronze : Amabheringi aphezulu, amagiya, nezihlalo zamavalvu ezidinga umthamo wokulayisha ongaphezu kwamabhulonzi ajwayelekile.
Ama-Superalloys kanye Nezinto Ezikhethekile
Ezingxenyeni ze-turbine yegesi, amasistimu e-exhaust, ne-petrochemical hardware esebenza ngaphezu kuka-600 °C, ukukhishwa kwe-investimenti ukuphela kwenqubo esebenzayo. I-Cobalt-base (Stellite) kanye nama-alloys esisekelo se-nickel agcina amandla emazingeni okushisa lapho izinsimbi sekuyisikhathi eside zazinikela khona. Lezi zinhlelo zokusebenza zidinga izisekelo ezikhethekile ezinamandla okuncibilikisa i-vacuum - ingxenye lapho ukukhethwa kwezinto ezibonakalayo nokukhetha komthengisi kungenakuhlukaniswa.
Imodeli yengqondo ewusizo ilinganisa imindeni ye-alloy evamile ngezindleko zempahla ehlobene:
- Insimbi empunga / i-carbon steel (isisekelo esingu-1.0×)
- I-Ductile iron (1.1×)
- Insimbi ene-alloy ephansi (1.2–1.5×)
- 400-uchungechunge olungenasici (1.5–2×)
- 300-uchungechunge olungenasici (2–3×)
- 17-4 PH / duplex (3–4×)
- Ama-alloys ethusi (3–5×)
- Ama-Superalloy (8–20×+)
Iphethini icacile: isinyathelo ngasinye esikhuphukayo sithenga amandla athile - amandla, ukumelana nokugqwala, noma ukumelana nokushisa. Khokhela ikhono elidingwa isicelo sakho, hhayi leli elidingwa yingxenye yombangi wakho.
I-KST Casting Isisekela Kanjani Isinqumo Sakho Sempahla
Ukukhethwa kwezinto akumele neze kwenzeke ngokuhlukile ekwenziweni. Kwa-Ningbo Ruican, ithimba lethu lonjiniyela libuyekeza wonke ama-RFQ ukuze athole ukulingana kwenqubo yezinto ezibonakalayo ngaphambi kokucaphuna. Simaka izicaciso ezidlulayo ezifutha izindleko, siphakamise okulinganayo okuthuthukisa ukusakazeka, futhi sinikeze impendulo ye-DFM ehlanganisa izici futhi enciphise ukwenziwa kwemishini. Ngesitifiketi se-IATF 16949, ukuqinisekiswa kwe-spectrometer kukho konke ukushisa, kanye nesitifiketi esigcwele se-EN 10204 3.1, uthola isiqinisekiso esibhaliwe sokuthi ingxubevange engxenyeni yakho ingxubevange oyicacisile.
