Yonke injineli esisiseko iyayazi le nto: impumelelo yokuphosa iqala kwakudala ngaphambi kokugalelwa. Iqala ngelungelo izinto zokugalela ngentsimbi-hayi nje izixhobo ezikrwada, kodwa izinto ezichanekileyo zokuchasa, izibophelelo, iingubo zokungunda, isanti engundoqo, kunye nezinto zokungena ezilawula ukuhamba kobushushu, ukugqitywa komphezulu, kunye nokuphindaphindwa komda. Siye sabona ukuphoswa kwexabiso eliphezulu kakhulu kungaphumeleli-kungekhona kuyilo olubi okanye ukhetho lwe-alloy, kodwa ukusuka ekuhanjisweni okungahambelaniyo kweenkozo zesanti, ikhemistri ye-binder ephelelwe lixesha, okanye i-coat flakes phantsi kokutshatyalaliswa kwe-thermal. E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Apho sivelisa i-AMS 5387 cobalt ingxubevange yempompo yezindlu kunye ne-T800-based nozzles kwiinkqubo ze-hydraulic ezisebenza kwi-bar ye-420, ukuthembeka akunqweneleki. Yenzelwe kuso sonke isigqibo sokubonelela.
Izixhobo eziRefractory ezimelana noxinzelelo lweThermal lokwenyani lweHlabathi
Ayizizo zonke ii-refractories eziziphatha ngendlela efanayo phantsi kwebhayisekile ephindaphindiweyo yobushushu. Isanti ye-silica isebenzela intsimbi ye-alloy ephantsi-kodwa iyasilela ngentlekele kunye ne-cobalt-nickel alloys engaphezu kwe-1,400 ° C. Kwisiseko sethu esithobela i-ISO, sisebenzisa i-alumina edibeneyo kunye nemixube ye-zircon kwi-investment shell molds ephosa ii-AMS 5387 iinxalenye. Ngoba? Ngenxa yokuba i-coefficient ye-zircon yokwandiswa kwe-thermal ihambelana ne-cobalt alloys ngokusondeleyo-ukunciphisa ukuchithwa kwegobolondo ngexesha lokutshatyalaliswa kunye nokutshisa. Iingubo ezisekelwe kwi-silica blister phantsi kokufudumala ngokukhawuleza; ezisekelwe zircon zibambe ingqibelelo. Sivavanya yonke ibhetshi yokuhanjiswa kobungakanani besuntswana (D50 ≤ 45 µm) kunye nomxholo wokufuma (<0.3%) phambi kokudipha iqokobhe. Omnye umthengi utshintshe ababoneleli ngaphandle kokulungelelanisa amaxabiso erempu ye-preheat-kwaye wabona i-22% iqokobhe elichithekayo kwiibhetshi zokuqala. Ukulungiswa yayingesosixhobo esitsha. Yayingqamanisa ukuziphatha okuchasayo kwiprofayile yabo yokwenyani yesithando somlilo.
Izibophelelo kunye neeNkqubo ezingundoqo ezihambisa uzinzo lweDimensional
core shift amabhodlo piston pump cylinder izindlu. Ukutenxa nge-0.15 mm kwindawo yombhobho wangaphakathi kuthetha ukungaphumeleli kokusebenza. Sisebenzisa i-cold-box phenolic urethane binders-kungekhona ngeendleko, kodwa ukugcina amandla aluhlaza kwi-35-40% yomswakama ohambelanayo kunye nokusebenza kwe-shakeout engaguqukiyo. Idatha yethu ibonisa ii-cores ezenziwe ngezi zibophelelo zibambe ± 0.08 mm ukunyamezela kwisithuba kwi-500-unit production runs. Ezinye iivenkile zisaxhomekeke kwiinkqubo ze-furan zokungabhaki, kodwa intsalela yesulfure ikhuthaza i-micro-porosity kwi-castings yensimbi engenasici. Ukuphoswa kwentsimbi kufuna i-Class 30 + amandla okuqina, sicacisa i-alkaline phenolic binders-low-sulfur, high-ash-strength, kwaye iyahambelana nemigca yokudubula engundoqo ezenzekelayo. Isitshixo asilohlobo lwesibophelelo sodwa. Yindlela i-kinetics yokunyanga i-binder ehambelana nobushushu bebhokisi yakho engundoqo, ukufuma kwe-ambient, kunye nexesha le-demold.
IiNgxobhozo zokuMngunda kunye neeArhente zokuKhupha eziLawula umphezulu weMfezeko
Umphezulu we-casting awuyonto yokuthambisa-uyasebenza. Iziseko zempompo zifuna i-Ra ≤ 3.2 µm yokutywinwa kwe-gasket; iirola ze-winch centre shaft zifuna imiphezulu engenasiphene ukunqanda ukunxitywa kwangaphambili. Sifaka i-aqueous ethyl silicate-bonded zircon coatings nge-airless spray-viscosity elawulwa kwi-22-24 sec (Ford Cup #4), umxholo we-solids kwi-68-70%. Ubhitye kakhulu? Ukunganyangeki kokukhukuliseka komhlaba. Zityebe kakhulu? Ukuqhekeka kunye nokuthathwa kwekhabhoni. Siqinisekisa i-coating thickness with eddy-current gauges-target: 0.25-0.35 mm ifilimu eyomileyo. Kwizinto ezingezizo eziqhelekileyo ze-T800 ze-alloy, songeza i-3-5% ye-graphite ye-colloidal ukuphucula ukuhamba kwesinyithi kumacandelo amancinci. Akukho ngubo "yendalo yonke" ephuma kwi-shelf ehambisa oko. Kukuqulunqa, indlela yokufaka isicelo, kunye nexesha lokumisa emva kokumisa-kuvavanywa kunye, kungekhona ngokuzimeleyo.
Ubonelelo-oLungileyo lokuLandela kwiMishini-eBalulekileyo yokuCasa
Xa ivalve yoxinzelelo ingaphumeleli kwiindawo ezininzi zeoli, ukulandeleka akungomsebenzi wamaphepha-kukunciphisa uxanduva. Wonke umgqomo wesanti ye-zircon, yonke ipayile yesibophelelo, yonke ibhetshi yokugquma uludaka olungena kwindawo yethu inenombolo eninzi, isatifikethi sohlalutyo somthengisi, kunye nengxelo yovavanyo lwesinyithi. Sigcina umkhondo ogcweleyo ukusuka kwirisithi yezinto eziluhlaza ngokuhlolwa kokugqibela kweCMM-ukuhla ukuya kwinani lobushushu le-cobalt alloy ingot nganye esetyenziswa kwii-AMS 5387 iinxalenye. Oko kuthetha ukuba ukuba umthengi unika ingxelo ye-porosity ngentsimbi ye-12 kwizindlu zesilinda, siyakwazi ukwahlula indawo echanekileyo yesanti, ibhetshi ye-binder, kunye nomjikelo wokudipha-kwaye siphinde sivelise imeko kwindawo yovavanyo. Uninzi lwababoneleli bathumela izinto eziqinisekisiweyo. Bambalwa abadibanisa isatifikethi kulawulo lwenkqubo yexesha lokwenyani. Senza njalo-kuba ukuchaneka komda kunye nokunyaniseka kolwakhiwo akufikelelwanga kwisithando somlilo sodwa. Bavalelwe kwinqanaba lokubonelela.
Iziphumo ezithembekileyo zesiseko aziveli kwicandelo elinye eligqibeleleyo. Baphuma kukhetho oluvavanyiweyo ngabom, oluvavanyiweyo ngalunye izinto zokugalela ngentsimbi into ekuhambeni kwakho komsebenzi-ukusuka kwisayizi yenkozo enqabileyo ukuya kwi-binder yobomi ukuya kwi-viscosity yokugqoka. E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., asiyiphathi njengezinto ezityiwayo, kodwa njengezixhobo ezichanekileyo. Loo ngqondo iyahlula intsebenzo ephinda-phindayo kwindleko yokusebenza ngokutsha. Njengoko iinkqubo hybrid casting-machining zikhula zixhaphake ngakumbi-ingakumbi kwimpompo yengxubevange ephezulu kunye neenkqubo zevalvu-umda wokuguquguquka konikezelo-chain iyacutheka. Khetha ababoneleli abalinganisa, baqinisekise, kunye namaxwebhu-hayi nje ukuhambisa.
