Ukugaywa kwesanti yomxhuzulane kuhlala kuyinkqubo yokuya kumacandelo amashishini afuna imfezeko yesakhiwo, uzinzo lwe-thermal, kunye nokunciphisa iindleko-ingakumbi xa iijometri ezinzima zihlangabezana neemeko zenkonzo yoxinzelelo oluphezulu. Kodwa ayingabo bonke umxhuzulane wesanti yokuphosa umzi-mveliso inikezela ngokuchaneka okungaguquguqukiyo komgangatho, iipropathi zetsimbi eziphinda-phindayo, okanye umphezulu ocacileyo wokugqiba kumaziko abalulekileyo. Siye sabona izindlu ezininzi zevalvu yehydraulic ezaliwayo emva konyango lobushushu ngenxa yokungabhaqwa kwe porosity. Siye salungisa iziseko zempompo ezijijekileyo ngexesha lomatshini kuba ukuqina komngundo akuzange kuqinisekiswe phambi kokugalelwa. Kwaye silandele ukunxitywa kwangaphambi kwexesha kwi-winch center shaft rollers ukubuyisela ukungahambelani kokuhanjiswa kwe-nodule yegraphite-hayi impazamo yomsebenzisi, kodwa izithuba zokulandelelwa kwemathiriyeli ekrwada.
Kutheni iGravity Sand Casting isaphumelela kuMacandelo oShishino oluSebenza ngokuPhezulu
Utyalo-mali lugqwesile kumacandelo e-aerospace eneendonga ezibhityileyo. I-Die casting ilawula izindlu ze-aluminiyam ezinomthamo ophezulu. Kodwa ukuphoswa kwesanti yomxhuzulane kubambe umhlaba owahlukileyo apho ubunzima benxalenye bungaphezulu kwe-50 kg, ubukhulu bodonga buyohluka ngaphaya kwe-25 mm, kwaye ukhetho lwealloy lubandakanya amabakala enickel-abrasive-resistant cobalt-nickel njenge-AMS 5387 okanye T800. Ezi ayizizo iinzuzo zethiyori. Ekuhanjisweni kwehlabathi lokwenyani, i-piston pump cylinder yendlu eyenziwe nge-gravity sand casting ifezekisa i-32% yokumelana nokudinwa kwe-thermal ephezulu kunomlingani wayo wotyalo-mali-kuba ukuqina okucothayo kukhuthaza isithuba se-dendritic yengalo kunye nokunciphisa i-microsegregation kwi-Co-based superalloys. Oko kunomlinganiselo. Iyaphinda-phinda. Yiyo loo nto ii-OEMs zemoto yobunjineli zicacisa ukuphoswa kwesanti ngaphezulu kwezinye iishafti ze-winch system ezisebenza kwi-120°C umsebenzi oqhubekayo.
Yintoni eyahlula i-Gravity ethembekileyo yeSand Casting Factory ukusuka kwenye
Uninzi lwamaziko alawula ukwakheka kwesanti kunye nokufuma. Bambalwa abalawula ikhonkco elipheleleyo: ukufunwa kwemathiriyeli ekrwada eqinisekisiweyo, imephu yokubumba amandla okubumba, ukujonga uxinzelelo lwe-metallostatic ngexesha lokwenyani ngexesha lokugalelwa, kunye nokuqinisekiswa kwe-post-cast microstructure nge-ASTM E112 yohlalutyo lobungakanani beenkozo. Kwiziko lethu elithobela i-ISO e-Qingdao, ibhetshi nganye ye-cobalt alloy nozzles iqala nge-T800 ingot eqinisekisiweyo kabini-eqinisekisiweyo ye-C, Cr, Ni, kunye ne-Si umxholo ngokuchasene neengxelo zovavanyo lokusila *phambi kokunyibilika. Senza imephu yobulukhuni bokubumba kwiindawo ezingama-36 ngokumelana kwaye sitsale sisebenzisa abavavanyi abahlaziyiweyo abalungelelanisiweyo-hayi nje embindini, kodwa kwiikona apho i-thermal gradients ibangela ukwanda okungalinganiyo. Ngexesha lokugalela, singena kwiqondo lokushisa le-ladle rhoqo ngemizuzwana eyi-15 kwaye siyidibanise nedatha ye-thermocouple efakwe kwi-mold cavity. Akukho ngqikelelo. Akukho ngqikelelo "eqhelekileyo yokusebenza".
Olu qeqesho luhlawula isivuno-kunye nokusebenza. Kwiindawo zempompo ze-AMS 5387, umyinge wethu wokuthobela umyinge wokuqala wokupasa umi kuma-94.7%, ulinganiswe ngokuchasene nokubizwa kwe-GD&T kwimizobo ye-ASME Y14.5–2018. Ayilothamsanqa elo. Sisiphumo sokudibanisa ukulinganisa ukulinganisa (usebenzisa i-MAGMAsoft) kunye noyilo lwe-CNC yokulungisa-ukuze izibonelelo zoomatshini zilungelelaniswe ngokuchanekileyo kunye ne-vectors yokuqina eqinisiweyo eqikelelweyo. Abathengi abafumani "uburhalarhume." Bafumana umatshini wokuphosa ngaphakathi kwe-± 0.05 mm kwiindawo zokutywina ezibalulekileyo-ngaphandle kokuphinda kusetyenzwe.
Apho I-Hybrid Manufacturing iSombulula iiNgxaki zokwenyani
Abanye bayaxoxa ukuba ukujulwa kwesanti kuphelelwe lixesha. Kodwa inyaniso ichaza ibali elahlukileyo: iivalve zoxinzelelo ezithembekileyo namhlanje zidibanisa imizimba ye-sand-cast kunye ne-CNC-machined flow pathways kunye ne-laser-clad seat surfaces. Leyo yimveliso yomxube-kungekhona njenge-buzzword, kodwa njengemfuneko. Umzimba wevalvu yokuphosa i-monolithic unokubamba unyamezelo oluqinileyo, kodwa uyasilela phantsi koxinzelelo lwe-cyclic spikes kuba ulwakhiwo lwalo olucolekileyo alunabugungqi bokwaphuka kwesanti epholisayo elawulwayo. Okwangoku, ukulingana ngokupheleleyo kwe-CNC-omatshini kwi-bar stock waste 68% yezinto eziphathekayo kwaye kuthatha i-3.2 × ixesha elide ukuvelisa.
Siyawuvala loo msantsa. Udibaniso lwethu oluthe nkqo luthetha iqela elifanayo eliqinisekisa umzobo wakho wokubumba kwakhona inkqubo ye-5-axis milling centre egqibezela ibhore yangaphakathi yesiseko sakho sempompo. Akukho handoffs. Akukho lahleko yoguqulelo. Xa umthengi ecela iplagi ye-cobalt yealloy engeyiyo eyomgangatho ene-0.02 mm yokunyamezela ukuphuma kubuso obuyi-120 mm OD, khange sithi "akunakwenzeka." Siye sahlengahlengisa ijometri yoshicilelo oluphambili, songeza ukulinganisa indawo ebandayo, kwaye saqhuba isilingo esinevolumu esezantsi kunye novavanyo olufakwe kwi-ultrasonic. Isiphumo? Uziro uyala kwiiyunithi ezingama-240. Ithunyelwe ngeentsuku ezili-18—hayi iiveki ezili-12.
Ukukhetha i-Gravity yakho yeSand Casting Factory: Iitshekhi ezintathu ezingaxoxisiyo
Ngaphambi kokuba usayine i-NDA okanye ukhulule i-PO, buza le mibuzo-kwaye ufune ubungqina:
- Ngaba ungandibonisa iilogi zokuhlola izinto ezingenayo zekota yokugqibela zeebhetshi ze-AMS 5387-kubandakanya ukuqinisekiswa kwe-spectrographic kunye neengxelo zovavanyo lwe-tensile? Ukuba bayathandabuza, hamba. Ukulandeleka akunyanzelekanga ukuba kufakwe ialloy ephezulu.
- Ngaba uye wenza uhlolo olukwinkqubo yokubumba kwisanti eluhlaza ngaphambi kokuba ugalele-okanye kuphela kwiisanti ezigqityiweyo? Ukuqinisekiswa kwenqanaba lokungunda kubambe kakubi kwangethuba. Ukuxhomekeka kuphela kuhlolo lokugqibela kuthetha ukulahlwa, hayi ukulungiswa.
- Yeyiphi inkqubo yakho ebhaliweyo yokuqinisekisa i-microstructure homogeneity kwindawo engqindilili ye-400 mm? Umgangatho we-ASTM E3 ufuna ubuncinci bemimandla emi-3 kwisampulu nganye. Nantoni na encinci iphosa ibhendi okanye i-carbide segregation.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yakha iindawo zentsimbi ezichanekileyo-kungekhona nje ukuphosa. Yonke ivalve yoxinzelelo, yonke indlu yesilinda, yonke i-cobalt nozzle iqala ngenjongo ye-metallurgical kwaye iphetha ngokuqinisekiswa okusebenzayo. Asikhupheli ngaphandle umgangatho. Siyinjineli kwinkqubo-ukusuka ekukhethweni kweenkozo zesanti ukuya kwingxelo yokugqibela yeCMM. Njengoko imfuno yehlabathi inyuka yokuqina, amacandelo aphezulu alloy kwimizi-mveliso, ilungelo umxhuzulane wesanti yokuphosa umzi-mveliso ayizukumane nje neespekthi. Iya kulindela iindlela zokungaphumeleli, yenza lula ikhonkco lakho lokubonelela, kwaye uhambise iindawo ezenza-umjikelo emva komjikelo, unyaka nonyaka.
