Wonke umzi-mveliso wesinyithi uqala ngombuzo ofanayo: Ujika njani isinyithi esinyibilikisiweyo sibe yinxalenye engayi kuqhekeka phantsi kwe-300 bar yoxinzelelo lwe-hydraulic-okanye uphile iiyure ezili-10,000 kwinkonzo yegesi emuncu? E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Siye saphosa kwaye sasebenza ngomatshini ngaphezu kwe-12,000 iivalvu zoxinzelelo, izindlu zempompo zepiston, kunye nemilomo ye-cobalt-alloy ukususela ngo-2015. Siye salahla i-47% ye-AMS 5387 batch emva kohlalutyo lwe-microstructure lubonakalise ulwahlulo phakathi kwe-interdendritic. Ezi ayizizo iimeko zeencwadi-zizigqibo zemihla ngemihla ezichaza iziseko zefektri yokuphosa isinyithi imisebenzi.
Ingqibelelo yezinto eziphathekayo ayicingelwa-iqinisekisiwe
Awukwazi ukuphosa iinxalenye ezisebenza kakhulu ukusuka "kwintsimbi engatyiwayo eqhelekileyo." Kwiziko lethu le-Qingdao, lonke ubushushu be-T800 ye-cobalt-based alloy lufika kunye neengxelo ezipheleleyo zovavanyo lwe-mill-kwaye siphinda sivavanye i-carbon, i-chromium, kunye nomxholo we-tungsten ngaphambi kokunyibilika. Ngoba? Kuba ukutenxa nge-0.03% kumxholo we-cobalt kutshintsha ubushushu be-solidus nge-12°C. Oko kutshintsha amaxabiso okupholisa ngundo. Oko kuchaphazela ubungakanani beenkozo. Oko kubeka esichengeni ubomi bokudinwa kwi-winch center shaft rollers. Sisebenzisa i-OES (i-Optical Emission Spectrometry) kwimivalo engenayo kwaye siqinisekise i-ASTM A957 yokuchithwa kotyalo-mali, i-ASTM A159 yentsimbi engwevu, kunye ne-AMS 2269 ye-cobalt-nickel alloys. Akukho ngaphandle. Hayi “ithemba kodwa qinisekisa”—siyaqinisekisa kuqala, emva koko silahle.
Ukhetho Lwenkqubo Yokuphosa Lumisela ICandelo Lobuchule
Ukugalelwa kwesanti kubamba iziseko zempompo ezinkulu ukuya kuthi ga kwi-1,800 kg-kodwa kufuna ulawulo olungqongqo lwe-binder ukuphepha iziphene zemithambo kwizindlu ezibhityileyo zecylinder. Utyalo-mali lunikezela nge-± 0.05 mm ukuphindaphindwa komgangatho we-AMS 5387 cobalt iiplagi zealloyi-kodwa ifuna imbuyekezo yokwandiswa kwepateni yewax echanekileyo. Asikhethi inkqubo enye kwaye sinyanzelise zonke iindawo. Endaweni yoko, senza imephu yecandelo ngalinye ngokuchasene neenqobo ezintathu: umlinganiselo wobunzima bodonga, imfuno yokugqiba umphezulu (Ra ≤ 1.6 µm vs. Ra ≤ 6.3 µm), kunye nendlela yomthwalo osebenzayo. Umzekelo, i-hydraulic pressure valve body isebenzisa isanti ephosa iqokobhe layo langaphandle-kodwa iipaseji zokuhamba zangaphakathi zi-CNC-machined post-cast ukubamba ukunyamezela kwe-GD&T kuqina kune ± 0.025 mm. Le ndlela yokudibanisa ayikhethi. Yindlela odibana ngayo ne-ISO 8502-3 yococeko specs * kunye * ASME B16.34 imilinganiselo yoxinzelelo.
Uzinzo lweDimensional luqala phambi kokuba uMngundo ugalelwe
Sake safumana umzobo wendlu yempompo yepiston ene-12 ebaluleke kakhulu-zonke ezichazwe kwi-± 0.015 mm. Umthengi ulindele ukuphoswa-ukuya-ukugqiba oomatshini. Kodwa ukucutshungulwa kwe-thermal kwi-iron ductile kuyahluka ngokwecandelo. Udonga lwe-45-mm lunciphisa i-0.28% ngaphezu kwe-rib ye-22-mm. Ke sakha izibonelelo ezicuthayo kwisixhobo sepateni-kungekhona njengee-offsets ezisisigxina, kodwa njenge-parametric curves ebotshelelwe kwixesha lokuqina lasekhaya (elibalwe nge-MAGMAsoft simulation). Emva koko siye saqinisekisa ukuziphatha okucuthekayo ngovavanyo lokubingelela, olulinganiswa kwi-Zeiss PRISMO CMM. Kuphela kusemva koko siye savuma ukuqhuba imveliso. Kungenxa yoko le nto uhlolo lwethu lwenkqubo lubandakanya i-100% yokulinganisa ukulungelelanisa kwizigaba ezithathu: njenge-cast, emva kokunciphisa uxinzelelo, kunye ne-post-machining. Ukulandeleka akuyiyo ingxelo-yinombolo ye-serial efakwe kwi-laser edibanisa yonke inxalenye kwi-log yokunyibilika kwayo, i-curve yonyango lokushisa, kunye nengxelo yokugqibela ye-CMM.
Ulawulo loMgangatho lwakhiwe kulo lonke inyathelo lokuhamba komsebenzi
Ezinye iifektri ziphatha i-QC njengesango ekugqibeleni. Siyibethelela apho kusilela khona: irisithi yemathiriyeli ekrwada, ukudityaniswa kokungunda, ukugalelwa kweqondo lobushushu, ixesha le-shakeout, kunye nokuhlola ubulukhuni bonyango lwangaphambili. Abahloli bethu basebenzisa imipu ye-PMI ephathekayo ukuqinisekisa ibakala le-alloy ngaphambi kokuphosa-kunye novavanyo lwe-ultrasonic (ASTM E114) kuyo yonke intsimbi ye-thick-section cast ngaphezu kwe-75 mm. Kumacandelo e-cobalt-nickel, songeza ukuhlolwa kwe-fluorescent penetrant (ASTM E1417) kuba i-micro-cracks ifihla kwimida ye-dendritic. Kwaye ewe-sigcina zonke iirekhodi ngokwedijithali iminyaka eyi-15. Akunjalo ngenxa yokuba umgangatho usitsho njalo, kodwa ngenxa yokuba xa i-OEM yaseYurophu ilandelela ukusilela kwintsimi kwibhetshi enye ye-AMS 5387, sitsale imbali yokuhlola epheleleyo kwimizuzwana engama-83. Akukho ngqikelelo. Akukho kulibaziseka.
I iziseko zefektri yokuphosa isinyithi impumelelo ibila ukuya kuthi ga kwizinto ezintathu ezingaxoxisiyo: uqeqesho lwesinyithi, ukujonga kwangaphambili okuthe ngqo komgangatho, kunye nokuhlolwa okungqongqo okubhakiweyo kukuhamba komsebenzi-okungabotshwanga ekugqibeleni. EQINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Ezo ziseko aziyothiyori. Ziyindlela esihambisa ngayo iivalvu zoxinzelelo ezisebenza kwi-450 ° C ngaphandle kokuvuza, izindlu zempompo ezigcina i-concentricity emva kwemijikelo ye-2 yezigidi, kunye nemibhobho ye-cobalt alloy exhathisa ukhukuliseko kwiimpompo ezinodaka oluludaka. Njengoko i-casting-machining hybrid complexity iphakama-kunye nemigangatho efana ne-NORSOK M-650 kunye ne-API 6A iqinisa-iziseko azitshintshi. Bafuna nje ukubulawa nzulu. Kulapho amava adibana khona nobunjineli.
