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High-kutentha zosagwira mbali fakitale

Pamene nyumba yanu ya pampu ya hydraulic iphwanyidwa pa 450 ° C, kapena phokoso la aloyi la cobalt likulephera chifukwa cha kugwedezeka kwa kutentha kwa cyclic, "fakitale yolimbana ndi kutentha kwambiri" imasiya kukhala nthawi yofufuzira - imakhala nthawi yomaliza. Taziwona m'makontrakitala amafuta aku North America, ku Europe kubwezeredwa kwa ma valve kunyanja, komanso kumadera akumwera chakum'mawa kwa Asia ochotsa mchere m'madzi: zida zapashelufu zimatsekeka. Zomwe zimakhazikika sikuti zimangolimbana ndi kutentha - ndi kusasinthasintha kwazitsulo, kukhazikika kwapang'onopang'ono pambuyo pa njinga yamoto, komanso kulolerana kwa zero pakulekanitsa kwapang'onopang'ono. Ichi ndichifukwa chake mainjiniya amafotokozera - osati zida zokha - koma mkulu-kutentha zosagwira mbali fakitale kumbuyo kwawo.

Zochita zenizeni padziko lapansi zimayamba kalekale asanapange makina. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., gawo lililonse la AMS 5387 cobalt alloy limayamba ndi traceability yazinthu zovomerezeka - mpaka kuchuluka kwa kutentha ndi lipoti la mayeso a mphero. Sitikuvomereza ziphaso "zovomerezeka"; timatsimikizira kagawidwe ka kukula kwa tirigu pamabilu omwe akubwera pogwiritsa ntchito ma protocol a ASTM E112. Chifukwa chiyani? Chifukwa kupatuka kwa 5% pakubalalika kwa carbide kumatha kuchepetsa moyo wautumiki ndi 60% pamisonkhano yamapampu ovala kwambiri. Mu pulojekiti yaposachedwa yagalimoto yaku Germany ya injiniya ya OEM, kusanthula kwathu kowoneka bwino m'nyumba kunagwira m'mphepete mwa nickel mu batch ya T800 alloy-asanatayidwe. Kuzindikira kumeneku kunalepheretsa ma roller 120 olephera apakati pamakina omwe amagwira ntchito pa kutentha kwa 520 ° C ndi 120 MPa pakanthawi.

Kuphatikizika koyima sikuli mawu omveka pano-ndi momwe timalamulira zomwe zili zofunika kwambiri: kusintha kwa magawo panthawi yozizirira. Nyumba zachitsulo zoponyera mchenga za mapampu a pistoni zimayendetsedwa mozungulira mozungulira mkati mwa ng'anjo zathu zotenthetsera zapamalo-osati zakunja. Izi zikutanthauza kuti graphite nodule nodule count (ASTM A247 Class 3), kuuma kwa yunifolomu (220-260 HBW), ndipo palibe tsamba lotsalira lomwe limayambitsa kupsinjika mtima pambuyo pomaliza CNC. Pakadali pano, ma nozzles a cobalt alloy opangidwa ndi ndalama amapeza HIP'd (kutentha kwa isostatic) nthawi yomweyo kuponyera kuti athetse microporosity-yovuta kwambiri pamene makulidwe a khoma amatsikira pansi pa 2.3 mm ndipo kuthamanga kwa ntchito kumapitilira 350 bar. Makasitomala amafunsa: "Kodi mutha kugwira ± 0.015 mm pa nyumba ya silinda ya 320 mm m'mimba mwake pambuyo pa maola atatu pa 480 ° C?" Inde-chifukwa timatsimikizira ma coefficients a kukula kwa kutentha pa zitsanzo za geometries asanapangidwe, osati pambuyo pake.

Ena amaganiza kuti kutentha kwakukulu kumachokera ku ma alloys achilendo. Koma tikuwona zolephera zambiri kuchokera pakusauka kwa GD&T kuposa chemistry yolakwika. Thupi la valve yokakamiza litha kugwiritsa ntchito chitsulo chosapanga dzimbiri cha F22 - koma ngati malo ake osindikizira ali opanda mphamvu yowongolera molingana ndi tsinde, kutayikira kumatsika pa 300 ° C. Ichi ndichifukwa chake kuwunika kwathu sikuyendetsedwa ndi mndandanda. Chigawo chilichonse chofunikira chimapeza chitsimikiziro cha CMM motsutsana ndi mtundu woyambirira wa CAD-osati miyeso yadzina chabe-ndi mawonekedwe a optical profilometry pankhope zosindikizira kuti atsimikizire Ra ≤ 0.4 µm pambuyo pa passivation. Pazigawo zomwe sizili za T800, timayendetsa kutsimikizira kwa kutentha kwapakati: mizere itatu yozungulira kuchokera kumadera ozungulira mpaka 550 ° C, kenako kuyesa kogwira ntchito pazovuta zazikulu. Palibe kuchotserapo. Palibe zoletsa.

Ngati mukuyang'ana mafakitole osagwirizana ndi kutentha kwambiri masiku ano, yang'anani kupyola zotsimikizira pakhoma. Funsani: Kodi ali ndi mankhwala awo otentha? Kodi angakuwonetseni zithunzi za microstructure kuchokera mwezi watha wa AMS 5387 lot? Kodi awunikanso ma callout anu a GD&T asanatchule - ndikuyika chizindikiro pomwe kulolerana kolimba kumawonjezera mtengo koma osagwira ntchito? QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. imagwira ntchito motere chifukwa kudalirika sikuperekedwa muchotengera chotumizira. Zimapangidwa mu nambala iliyonse ya kutentha, njira iliyonse yogwiritsira ntchito, zolemba zonse zoyendera. Nthawi yotsatira dongosolo lanu likatentha, mbali zanu siziyenera kupulumuka - ziyenera kuchita. Izi zimayamba ndikusankha yemwe amawongolera zosintha zomwe zili zofunika.


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