I-AISI 8620 ifektri yokuphosa utyalo-mali ayikho nje ibinzana-luphawu lokusebenza. Xa uloliwe wakho wegiya kufuneka usinde kwimijikelo ye-150,000 phantsi komthwalo we-hydraulic we-MPa we-350, okanye indlu yakho yokuhambisa i-automotive inyamezela ukothuka okuphindaphindiweyo kwe-thermal ukusuka kwi--40 ° C ukuya ku- +180 ° C, ukhetho lwempahla kunye nolawulo lwenkqubo luyeke ukuba lukhetho. Ziye zingabi nazingxoxo. Intsimbi ye-AISI 8620 inikezela ngolungelelwano olufanelekileyo: ukuqina okunzulu ukusuka kwi-nickel-chromium-molybdenum alloying, i-microstructure ecolekileyo emva kokungcwatywa kwe-carburizing, kunye nokuqina okukhethekileyo okungundoqo—*ukuba* inkqubo yokuphosa igcina ingqibelelo yayo yesinyithi. Kulapho uninzi lwababoneleli bengaphumeleli khona-kungekhona kunyango lobushushu, kodwa ngaphambili: kuyilo lokungunda, ukuzinza kweqokobhe, kunye nolawulo lokuqina.
Kutheni i-AISI 8620 ifuna ukuCandwa koTyalo-mali-hayi iSanti okanye iFa
Ukugalelwa kwesanti kwazisa ukukrala kweenkozo kufutshane neendonga zokungunda; i-die casting ayikwazi ukuphatha i-AISI 8620's high melting point (1490 ° C) okanye ukuvakalelwa kwayo kwiintanda zokupholisa ngokukhawuleza. Utyalo-mali lusisombulula zombini. Iqokobhe layo le-ceramic livumela ukucotha, ukuqiniswa kwendlela-kubaluleke kakhulu ekufezekiseni ubunzulu bemeko efanayo ngexesha lokungcwatywa kwe-carburizing. Silinganise ukuya kuthi ga kwi-22% yophuculo kwimeko yokutshintsha kobunzima bezowuni yokungaguquguquki xa kuthelekiswa nokulingana kwesanti kwizikhewu zegiya ezifanayo. Ngokucacileyo: umthuthi weplanethi esiyinike umxhasi we-Tier-1 EV drivetrain ubonise i-0.08 mm dimensional drift emva kweeyure ezingama-500 zovavanyo olukhawulezayo lokunxiba-ngokuchasene ne-0.21 mm kwiyunithi yesanti ekhuphisana nayo. Umahluko yayingengoomatshini. Yayiyi-as-cast microstructure.
Izinto ezine ezingaxoxisiyo kwi-AISI 8620 yoTyalo-mali lwe-Factory Casting
Ayizizo zonke ii-Foundries eziphatha i-AISI 8620 ngokungqongqo ngokulinganayo. Nantsi into eyahlula isakhono esibalulekileyo kwimveliso yemveliso:
- Ukulandeleka kwemathiriyeli ekrwada ukuya kwinani lobushushu-akukho kuhlanganiswa kwebhetshi. Yonke i-AISI 8620 ingot iqinisekisiwe kwi-ASTM A304, kunye neengxelo ezipheleleyo ze-spectrographic ze-Ni (0.4-0.7%), i-Cr (0.4-0.6%), kunye ne-Mo (0.15-0.25%) umxholo. Izinxaxhi ngaphandle kwe ±0.03% zixhokonxa uvalelo oluzenzekelayo.
- Iiprothokholi zokomisa iqokobhe zilinganiswe kwindawo yombethe, hayi ixesha. Umswakama ongaphezu kwe-45% ye-RH ngexesha lokuxutywa kwe-dewaxing kubangela i-micro-porosity kwi-5-12 µm uluhlu-olungabonakali nge-X-ray kodwa intlekele phantsi kokulayisha ukukhathala. Iikhilns zethu zingena ngexesha langempela le-RH kunye nobushushu rhoqo kwimizuzwana engama-90.
- I-pre-carburizing yokunciphisa uxinzelelo kwi-650 ° C kwiiyure ze-4—kungekhona ozikhethelayo. Uxinzelelo lokuphosa olungakhululekanga lugqwetha iigiya ngexesha lokuqina kwetyala. Siqinisekisa uxinzelelo olushiyekileyo ngokugrumba umngxuma wokujonga ubunzima kwiisampulu zenqaku lokuqala.
- CMM-based as-cast uhlolo phambi kwayo nayiphi na Machining. Sijonga i-12 i-callouts ye-GD & T ebalulekileyo-kubandakanya iphrofayili yomphezulu kwi-gear tooth flanks kunye nokunyamezela isikhundla sobudlelwane bobudlelwane-kwinqanaba eliluhlaza. Ukuba ayiphumeleli apha, akukho xabiso lolungiso lwe-CNC olugcina inxalenye.
Apho iifektri ezisemgangathweni zisika iikona-kwaye singenzi njani
Ezinye iifektri zotyalo-mali ze-AISI 8620 zitsiba ukucocwa kwe-vacuum yangaphambili, kucingelwa ukuba umgangatho we-EAF wokunyibilikisa wanele. Kodwa umxholo weoksijini ongaphezulu kwe-20 ppm udala iintambo ze-oxide eziqalisa ukugqobhoza kumazinyo egiya. Sisebenzisa i-VIM + ESR yokucoca kuyo yonke i-aerospace kunye nee-odolo zemoto-ukunciphisa i-O₂ <8 ppm kunye nesalfure ukuya <0.002%. Enye indlela emfutshane exhaphakileyo: ukusebenzisa iqokobhe elenziwe lafana nelinye endaweni yodaka olusekwe kwizircon elungiselelwe iintsimbi eziphezulu zealloyi. Iingubo zeGeneric zichitha kwi-1400 ° C, zizisa ukubandakanywa kwe-refractory. Ukwakhiwa kwethu kwe-slurry kubandakanya i-12% ye-silica binder edibeneyo kunye nokusabalalisa ubungakanani be-particle-size iqinisekiswe yi-laser diffraction-ibhetshi nganye.
Abathengi bahlala bebuza: "Ngaba ungabamba ±0.025 mm kwi-120 mm yesangqa sedayamitha yepitch?" Ewe-kodwa kuphela ukuba i-gear blank's as-cast wall thicknessation ihlala ngaphakathi kwe-± 0.3 mm. Yiyo loo nto iinjineli zethu zezixhobo ziqhuba ukulinganisa ukuqinisa (usebenzisa i-MAGMASOFT®) *phambi * kokuvunywa kwepateni. Senza imephu yemitha ye-thermal kuwo wonke umthi wokuphosa, emva koko silungelelanise i-gating ukususa iindawo ezishushu. Kwikota yokugqibela, oku kuthintele iigiya ezilahliweyo ezingama-37 kwi-odolo enye yendibano ye-axle exutyiweyo.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD.: Ukuchaneka Kwenziwa kuLuleko lweNkqubo.
Ngokusekwe eQingdao, QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza indawo eqinisekisiweyo ye-ISO 9001 apho i-AISI 8620 i-investment casting ingabodwa-ihlanganiswe. CNC machining kwenzeka kumgangatho ofanayo, kunye CMM data loops ekwabelwana. Xa i-gear blank ifika kwi-casting, i-geometry yayo yokondla ngokuthe ngqo kwimbuyekezo yenkqubo ye-CNC ye-toolpath-akukho ukungena kwe-offset manual. Iishedyuli zonyango lobushushu zinxulunyaniswa nokuphosa amanani eqashiso kwi-MES yethu, ngoko ke iiparamitha ze-carburizing zilungelelanise ngokuzenzekelayo ngokusekelwe kwiziphumo zovavanyo lwangaphambili lobulukhuni ukusuka kobo bushushu buchanekileyo.
Asithengisi iinxalenye. Sihambisa ukulungela ukusebenza. Oko kuthetha ukuqinisekiswa kweepateni zemesh yegiya nge-optical profilometry ngaphambi kokuthunyelwa. Kuthetha ukubonelela ngee-certs zemathiriyeli ezigcweleyo, iirekhodi zokwakha iqokobhe, kunye nee-micrographs zasemva kobushushu xa kuceliwe. Kuthetha ukubamba isitokhwe se-AISI 8620 master alloys ukusuka kubathengisi abathathu abaqinisekisiweyo-ngoko ke ukuphazamiseka kwekhonkco lokubonelela akuze kulibazise ishedyuli yakho yeprototype.
Umzi-mveliso wotyalo-mali we-AISI 8620 ufumana ukuthenjwa hayi ngeencwadana, kodwa ngokuphinda-phinda: iprofayili yokuqina efanayo kwiiyunithi ezingama-500, ubomi obufanayo bokudinwa kuyo yonke iminyaka emithathu yemveliso, uzinzo olulinganayo emva kwe-10,000 yemijikelo yobushushu. Leyo yimigangatho ye-QINGDAO QIANGSENYUAN TECHNOLOGY idibana-hayi ngamaxesha athile, kodwa ngokucwangcisiweyo. Ngenxa yokuba kwizixhobo ezichanekileyo kunye nezicelo zeemoto, "isondele ngokwaneleyo" ayikho. Kuphela ngokuchanekileyo.
