Xa iinjineli zicacisa insimbi engenasici kwi-high-precision, i-mission-critical parts-cinga iivalve zoxinzelelo kwiinkqubo ze-hydraulic okanye i-piston pump cylinder housings-zifuna okungaphezulu nje kokuxhathisa ukubola. Bafuna uzinzo olunomlinganiselo phantsi kwebhayisekile eshushu, imfezeko ye-microstructural emva kokuntywila, kunye nokugqiba komphezulu osindayo kwimidiya yokuqukuqela okurhawukileyo. Kulapho ozinikeleyo inaliti yesinyithi yokubumba umzi-mveliso wentsimbi engenasici iba yinto engenakuxoxisana-hayi njengomthengisi, kodwa njengeqabane lenkqubo.
Kutheni i-MIM iStainless Steel ifuna ukudityaniswa okuthe nkqo-Hayi nje izixhobo
Sibone iiprojekthi ezininzi kakhulu zimile kwinqanaba leprototype kuba ivenkile ye-MIM iphethe ukuxubana kwemfuyo kunye nokudityaniswa, kodwa i-sinter ekhutshwa ngaphandle kumsebenzisi weziko lenjongo jikelele. Amanqanaba ensimbi engenastainless afana ne-17-4 PH okanye i-316L aziphatha ngokungalindelekanga ngaphandle kokulawula okuqinileyo kuxinzelelo lweoksijini oluyinxenye, iirempu zerempu, kunye nokubamba amaxesha ngexesha lokuntywila. Kwi-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Ukuhamba komsebenzi we-MIM wonke-ukusuka kwi-feedstock formulation kunye ne-certified stainless steel powder (i-ASTM A985-ethobelayo), ngokusebenzisa i-solvent kunye ne-thermal debinding, i-vacuum-sintering kwi-ISO 9001-certified furnaces-uphahla olunye lubulawa. Akukho handoffs. Akukho mahluko kwibhetshi-kwibhetshi ekukhuleni kweenkozo. Akukho nto imangalisayo xa i-GD&T callouts ifuna ±0.02 mm kwiifitsha ezinodonga olucekethekileyo olungaphantsi kwe-1.2 mm ubukhulu.
Oku kudityaniswa kubaluleke kakhulu xa ijometri idibana nomsebenzi. I-winch centre shaft roller yezithuthi zobunjineli ifuna ubulukhuni ≥38 HRC *kunye* noburhabaxa bomphezulu we-Ra ≤0.8 µm-iimfuno ezinyanzela urhwebo phakathi koxinzelelo lwe-sintering kunye ne-post-MIM machining. Indawo yethu ibhulorho eso sikhewu: thina sinter kufuphi-net-shape, emva koko sisebenzise i-multi-axis CNC yokugqiba ngonyango oludibeneyo lokushisa-akukho mpahla yangaphandle, akukho ziphoso zokulungiswa kwakhona, akukho kulahleka kokuqhubeka kwedatum.
Apho uMgangatho weMIM usilela khona-kunye nendlela ubuchwephesha obukhethekileyo obuyilungisa ngayo
Abanye banokuthi nawuphi na umnikezeli we-MIM unokwenza insimbi engenasici ukuba balandela i-ASTM F2885. Kodwa iindlela zokusilela zehlabathi zokwenyani zibalisa ibali elahlukileyo. Silandele ukuqhekeka okuphindaphindiweyo kwizihlalo ze-valve ze-316L emva kwe-carbon binder eseleyo ebanjwe kwimida yengqolowa-isiphoso esingabonakaliyo ekuhlolweni kwe-optical kodwa yintlekele phantsi koxinzelelo lwe-cyclic. Ukulungiswa akuzange kubophe ngokukhawuleza; ibitshintsha ukusuka kwiparafini-esekwe kwi-polyacetal-based binder *kwaye* isongeza umoya olawulwayo wangaphambi kwe-sinter soak step. Olo hlengahlengiso luvela kwiminyaka eyi-12 yokuqhuba imilomo ye-AMS 5387 cobalt alloy—izinto ezinezinto ezinovakalelo olufana nolwandiso lwe-thermal kodwa izohlwayo zeendleko eziphezulu kwi-scrap.
Loo mava adlulisela ngokuthe ngqo kwintsimbi engenasici. Iimetallurgists zethu aziyiphathi i-17-4 PH "njengelinye ibakala." Bayayazi impendulo yayo yokuguga iyatshintsha ukuba ubushushu be-sintering bukhukuliseka ±5°C. Baqinisekisa yonke i-powder eninzi engenayo kunye nohlalutyo lwe-OES-kungekhona nje i-Fe / Cr / Ni, kodwa ukulandelela i-oksijini kunye ne-nitrogen elawula i-pore morphology. Kwaye babhala yonke ipharamitha: indawo yombethe kwigumbi lokutshisa, isantya sebhanti kwi-oven edibeneyo, kunye nokufuma kwe-ambient ngexesha lokuphatha inxalenye eluhlaza. Ngenxa yokuba kwiindibano zempompo zoxinzelelo oluphezulu, ukuhluka kwe-0.3% yoxinaniso alukho i-theory-kukungaphumeleli kokukhathala kwangaphambili kwi-12,000 psi.
Ukusuka kuMzobo ukuya ekuhanjisweni: Yintoni eneneni "Ukuchaneka okuphezulu" Kuthetha Ukuziqhelanisa
"Ukuchaneka okuphezulu" kusetyenziswa kakubi rhoqo. Ukuchaneka kokwenyani kuthetha ukuphinda-phinda kwiindawo ezingama-500+, hayi nje iskena esinye seCMM. Kuthetha ukubamba indawo yokwenyani kwimingxuma ye-Ø3.2 mm ebekwe ngama-42 mm ngaphandle kwe-0.015 mm—*emva* kwe-sintering shrinkage, *emva* kokukhululeka koxinzelelo, *emva* kokudlula. Nantsi indlela esiyihambisa ngayo:
- Ulawulo olungenayo: Umgubo wentsimbi ekrwada uvavanyelwe ukuhanjiswa kobungakanani besuntswana (D50 ≤ 8.5 µm), ubuninzi obucacileyo, kunye nesantya sokuhamba nge-ASTM B212
- Uqinisekiso olukwinkqubo: Ubunzima benxalenye eluhlaza efakwe kwicango ngalinye; ingxinano ye-sintered elinganiswa ngendlela ye-Archimedes kwindawo yokuqala kunye nenxalenye engama-50
- Ukuqinisekiswa kokugqibela: Ukuhlolwa kwe-100% kweCMM kwiinkcukacha ezibalulekileyo; i-SEM ekhethiweyo / i-EDS kwiindawo eziqhekekileyo zohlalutyo lwamapore
- Ukulandeleka: Iqashiso ngalinye liphethe isatifikethi esinekhowudi ye-QR edibanisa iqashiso lomgubo, i-ID ye-sintering run, ilog yomsebenzisi, kunye nengxelo yokugqibela yokuhlola.
Oku akusiyo i-overkill-yinto esisiseko kubathengi kwi-oyile kunye negesi abafuna ukuthotyelwa kwe-ASME B31.4 okanye i-EU PED 2014/68/EU amaxwebhu. Asongezi "zatifikethi kamva." Sakha inkqubo kuqala, emva koko siphicothe ngokuchasene nayo.
Ukukhetha Umzi-mveliso Wentsimbi Engenazityebi—Jonga Ngasemva Kwencwadana
Ukuba iprojekthi yakho elandelayo ibandakanya iinxalenye ze-MIM zentsimbi engenasici kwi-hydraulic manifolds, iziseko zempompo, okanye i-cobalt-stainless hybrids yesiko, buza imibuzo emithathu ngaphambi kokuba usayine i-PO:
- Ngaba banokukubonisa irekhodi yokugqibela yokulinganisa iziko lomlilo-kwaye bangqine ukuba ligubungela uluhlu olupheleleyo lobushushu olusetyenziselwa ibakala lakho?
- Ngaba benza i-metallographic cross-sections kumaqashiso emveliso, hayi nje ukubaleka kwe-R&D?
- Xa umzobo ubiza “Ra ≤0.4 µm kumphezulu wokutywina,” ngaba basebenza ngomatshini *emva kokucofa—okanye baxhomekeke kwipolishi yesibini esusa umaleko wecala eliqinileyo?
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. iimpendulo ewe kuzo zontathu. Akunjalo njengamabango okuthengisa-kodwa njengento ebhaliweyo, ebonakalayo kwiindlela zethu zophicotho lwe-ISO 9001 kwaye kwabelwana ngayo ngokuphandle ngexesha lophononongo lobunjineli. Asithengisi umthamo. Sithengisa ukuqikelela.
Ngezicelo ezifunwayo apho i-MIM yensimbi engenasici kufuneka ihambise zombini ukuchaneka kunye nokuthembeka, ukusebenzisana ne- inaliti yesinyithi yokubumba umzi-mveliso wentsimbi engenasici ophethe ikhonkco lexabiso elipheleleyo-ukusuka kwisayensi ye-powder ukuya kuvavanyo olusebenzayo-ayiyo inzuzo. Kuphela kwendlela ethintela ukuyilwa kwakhona okunexabiso eliphezulu, ukulibaziseka kokuqaliswa, kunye nokusilela kwintsimi. Ikamva lelabavelisi abaphatha i-metallurgy njengobunjineli-hayi ukuthengisa ngaphandle.
