Machitidwe a mafakitale salephera chifukwa cha kusalinganika bwino - amalephera chifukwa zipangizo zimapita pansi pa kupanikizika, kutentha, kapena kupsinjika kwa cyclic. Tidaziwona m'nyumba zapampopi za hydraulic zikung'ambika pa bar 350, mumilomo ya cobalt alloy ikusefukira pambuyo pa maola 8,000 ogwirira ntchito, mu ma winch center shaft rollers akugwira poyambira kuzizira ku Arctic rigs kunyanja. Izi siziri zochitika zenizeni. Ndizizindikiro - kuwuza mainjiniya kuti zigawo zamtundu wokhazikika sizingadutse pomwe magwiridwe antchito sangakambirane.
Ndiko kumene zigawo za aloyi opangidwa kuti akhale olimba, osati kungotsatira chabe, amakhala ofunikira kwambiri. Sikuti ma alloys onse amachita chimodzimodzi pansi pa kugwedezeka kwamafuta. Sikuti masitolo onse opangira makina amatha kukhala ± 0.01 mm pampando wa valve wa T800 cobalt pomwe akusunga kukhulupirika kwa AMS 5387 microstructure. Ndipo si onse ogulitsa omwe amatsata manambala a kutentha kwa zinthu zomwe zimabwerera ku ng'anjo yosungunuka. Kudalirika kwenikweni kwa dziko kumayambira pamenepo.
Chifukwa chiyani Cobalt-Nickel ndi High-Alloy Castings Zimaposa Njira Zina Zodziwika
Ogula ambiri m'mafakitale amasankha zitsulo zosapanga dzimbiri kapena chitsulo chosapanga dzimbiri - mpaka atayang'anizana ndi slurry, mitsinje yamafuta odzaza ndi H₂S, kapena katundu wopukutira pamwamba pa 40 Hz. Kenako amazungulira. Mofulumira. Chifukwa ma aloyi a cobalt-nickel monga omwe amakumana ndi ma AMS 5387 amapereka maubwino atatu oyezeka: choyamba, kuuma kolimba pamwamba pa 600 ° C; chachiwiri, kukana kuphulika m'magulu otsetsereka ngati ma silinda a pisitoni; chachitatu, corrosion kutopa mphamvu m'madera olemera chloride kumene 316 zosapanga dzimbiri amalephera mwakachetechete.
Tayesa izi m'malo otumizidwa kumadera akumwera chakum'mawa kwa Asia. Makasitomala m'modzi adalowa m'malo mwa 42CrMo4 valavu yopangira valavu ndi pulagi ya AMS 5387 cobalt alloy. Moyo wautumiki unalumpha kuchoka pa miyezi 14 kufika pa miyezi 41—ngakhale kupanikizika kofananako kumafanana ndi kutentha. Kusiyana kwake? Kukhazikika kwa Microstructural. Palibe mvula yamalire a grain carbide. Palibe kuukira kwa intergranular. Kungowonjezera zokolola zokhazikika pagawo lililonse.
Koma kusankha aloyi yekha sikokwanira. Muyenera kuponya-machining synergy. Kuyika ndalama kumapereka mawonekedwe apafupi ndi ukonde wa ndime zovuta zamkati zamavavu opanikizika - koma pokhapokha ngati mawonekedwe ocheperako atengera T800's 12.3 µm/m·°C coefficient yowonjezera kutentha. Kenako makina a CNC ayenera kuchotsa katundu popanda kuchititsa kupsinjika kotsalira komwe kumayambitsa kupotoza panthawi yomaliza kutentha. Kuphatikizika koyima kumeneko - kuponyera, mphero zamitundu yambiri, kuchepetsa kupsinjika, kumaliza pamwamba - ndipamene magwiridwe antchito amatsekeredwa.
Zinayi Zosakambirana Pofotokoza Magawo a Alloy pa Ntchito Zovuta
Magulu ogula zinthu nthawi zambiri amangoganizira za mtengo pa kilogalamu. Mainjiniya amadziwa bwino. Izi ndi zomwe zimatsimikizira mtengo wanthawi yayitali:
- Kufufuza kwazinthu mpaka kutentha nambala-osati ziphaso za mphero, koma malipoti azitsulo athunthu akuwonetsa zomwe zili mkati mwa ± 0.02% ya kaboni, boron, ndi silicon yeniyeni
- Dimensional kutsimikizira pa magawo atatu: Kutentha kusanachitike (kugwira warpage), kukonza makina (asanayang'ane komaliza), komanso pambuyo pa mpumulo wa nkhawa (pamene kukhazikika kwenikweni kumatuluka)
- Kutsimikizira kukhulupirika kwapamtunda, osati ma Ra values okha-kugwiritsa ntchito white-light interferometry kutsimikizira kusakhalapo kwa ma microcracks apansi pazida zaukali.
- Kuyesedwa kogwira ntchito kogwirizana ndi mizere yomaliza yogwiritsira ntchito, monga 10,000-cycle pressure cycling pamaziko a pampu musanatumize
Mmodzi wa OEM waku North America adaphunzira izi movutikira. Dongosolo lawo loyambirira lidagwiritsa ntchito mtengo wotsika mtengo wa ma nozzles a aloyi a cobalt. Pambuyo pa maola 3,200, mayunitsi asanu adawonetsa kutsekeka pang'ono pakhosi - chifukwa champhamvu yowombera, osati kuchuluka kwa zinthu. Kuwasintha kumawononga 3.7 × gawo loyambirira la mtengo mu nthawi yopuma yokha. Kukonzekera sikunali kusintha ma alloys. Kunali kusinthira kwa mnzanu yemwe amatsimikizira kupsinjika kwapamwamba-osati kungokhala kwaukali.
Kodi “Kuchita Bwino Kwambiri” Kumatanthauza Chiyani M’zochita
Zimatanthawuza kugwira ma callout a GD&T ngati kulolerana kwa malo Ø0.05 mm pamabowo asanu ndi atatu a coaxial munyumba imodzi yapampu ya AMS 5387-ngakhale yankho litakhazikika pa 1175°C. Zimatanthawuza kubweretsa zodzigudubuza zamagalimoto oyendetsa winch center shaft ndi Cpk ≥1.67 kudutsa kuuma, kukhazikika, ndi kuya kwamilandu - batch after batch. Zimatanthawuza kutsimikizira chigawo chilichonse cha T800 cha alloy motsutsana ndi ASTM E112 pakukula kwambewu, ASTM E1268 kuti muphatikizidwe, ndi ISO 4287 pamawonekedwe ogwirira ntchito - osati kungoyang'ana zowoneka.
Kuwongolera uku sikuchitika mumagulu ogawikana. Pamafunika malo ogwirizana ndi ISO pomwe opanga mapulogalamu a CNC amawunikanso mawu a GD&T * ndi* akatswiri opanga nkhungu asanatulutse. Pomwe zida zoyezera zowunikira zimadutsana ndi data ya CMM pamadatum ovuta. Kumene pulagi iliyonse ya cobalt alloy imakhala ndi nambala ya QR yolumikizana ndi zolemba zake zonse zowunikira: nambala ya kutentha, piritsi loyeserera, zotsatira za scan ya akupanga, lipoti lomaliza.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. anamanga mbiri yake pa mwambo umenewo—osati zonena zamalonda. Ntchito yawo ndi opanga makina a hydraulic system ikuwonetsa momwe njira zolumikizirana zolimba ndi makina zimachepetsera nthawi yotsogolera ndi 22% motsutsana ndi kutumizirana zinthu motsatizana —popanda kupereka nsembe kubwerezabwereza. Kugulitsa kwawo mu hybrid casting-machining R&D sizongopeka. Imawonekera pamapampu oyambira omwe amalemera 42 kg koma amakhala ndi kutsika kwa ± 0.03 mm pamtunda wa mita 1.2.
Zigawo za alloy sizinthu. Ndiwo mzere womaliza wa chitetezo pakati pa kupitiriza kwa ntchito ndi kulephera koopsa. Sankhani kutengera zolembedwa zowongolera -osati zolemba zamakalata. Fufuzani zotsatirika musanafune masiku obweretsa. Ndipo kumbukirani: gawo lotsika mtengo kwambiri ndi lomwe siliyenera kusinthidwa.
