Kutheni i-17-4PH iNtsebenziswano yeFactory isilela-kwaye iQingdao elinye liyiSombulula njani yonke imihla
Uninzi lweenjineli ezifumana iinxalenye ze-17-4PH zibethe eludongeni olufanayo: umthengisi uthembisa amandla e-H900 kunye nokuthotyelwa kwe-ASTM A564, emva koko ahambise ubulukhuni obungahambelaniyo kwibhetshi-okanye okubi ngakumbi, iintanda ezincinci emva konyango lobushushu. Siyibonile kwizindlu zevalve yehydraulic ezaliwayo phakathi kwendibano, kwimikhono yempompo yepiston yokusilela kwi-3,200 psi, kwiziko le-winch shafts elwa ngexesha lokusila kokugqibela. Unobangela wengcambu ayiyonto imbi-yisakhono esiqhekezayo. Yinyani 17-4PH umzi-mveliso kufuneka ilawule i-metallurgy, machining, kunye ne-thermal processing phantsi kophahla olunye. Hayi nje “ekwaziyo”—kodwa iqinisekisiwe, iyalandeleka, iyaphinda.
Ulawulo lweMetallurgical luqala phambi kokuba uMatshini aqale
I-17-4PH ayisiyiyo nje "intsimbi engenasici enobhedu." Ukuxhathisa kwayo kwe-corrosion kunye ne-1,100 MPa amandla okuqina axhomekeke kwi-kinetics yokuguga echanekileyo: ifutshane kakhulu, kwaye i-precipitates ayifaki; zinde kakhulu, kwaye zirhabaxa, ukuqina okuthoba isidima. Kwi-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., yonke i-billet ye-17-4PH ifika kunye neengxelo zovavanyo olupheleleyo lwe-mill-eqinisekisiweyo kwi-AMS 5604 okanye i-ASTM A564 iBanga le-630-kwaye ifumana ukuqinisekiswa okungenayo: uvavanyo lwe-spark, uhlalutyo lwe-PMI, kunye nesisombululo-i-anneal yokuqinisekisa ubushushu ngaphambi kokuqinisekiswa kwe-chip.
Asilukhupheli ngaphandle unyango lobushushu. Iziko lethu elithobela i-ISO liqhuba iziko elilawulwayo elinomoya olingana ne-±2°C, lilandelwa kukucinywa kwe-helium-cooled ukucinezela ukubunjwa kwe-delta ferrite. Imijikelo yokuguga ifakiwe kwiqashiso ngalinye-hayi kwishifti nganye-ngexesha lokwenyani lemephu ye-thermocouple. Isiphumo? Ukwahluka kokuqina kuhlala ngaphakathi kwe-HRC 38-40 yemeko ye-H900, iqinisekisiwe kumanqaku amathathu ngenxalenye nganye usebenzisa i-Rockwell B kunye ne-C isikali. Akukho ngqikelelo. Akukho kuphinda kusebenze.
Ukuchaneka koMachining Okuhlonipha iinkozo
I-17-4PH isebenze-inzima ngokukrakra. Iindlela zesixhobo ezisemgangathweni zibangela ukuguga okukhawulezileyo kweflanki, amanqaku okuncokola, kunye nokukhukuliseka okulinganayo-ingakumbi kwizindlu ezinesilinda ezibhityileyo okanye imizimba yevalve enemisonto enzulu. Iqela lethu le-CNC lisebenzisa izicwangciso zokugaya ukutya okuphezulu kunye ne-PVD-coated carbide inserts, i-adaptive roughing enciphisa amandla e-radial nge-35%, kunye neenkqubo zokubamba izixhobo eziqinileyo ezilinganiswe i-12,000 rpm spindles.
Sisebenza ngomatshini izinto ezibalulekileyo *emva* kokwaluphala—hayi ngaphambili. Ngoba? Ngenxa yokuba i-post-heat-treat stress relief itshintsha inxalenye yejometri. I-0.015 mm yokunyamezela kwi-200 mm yendlu yedayamitha ayifumaneki ukuba uguga kwangaphambili kwaye uneminyaka yobudala. Inkqubo yethu yokuhamba ivala ulawulo lwe-GD & T ukuya kwimeko yokugqibela: ukugqiba umphezulu Ra ≤ 0.8 μm ebusweni bokutywinwa, ukunyamezela kwesigxina ± 0.02 mm kwimingxuma yokunyuka, kunye nokugxila kugcinwe kwi-0.01 mm kwiijenali ze-shaft-konke kulinganiswe kwi-calibrated Zeiss CONTURAngcombi-CMM ye-protemperature kunye ne-protemperature ye-pro.
Apho i-Casting idibana nobuGcisa be-alloy yamandla aphezulu
Ezinye izicelo ze-17-4PH zifuna ubunzima obusondeleyo kwi-net-shape engenakwenzeka nge-bar stock: iziseko zempompo ze-asymmetric, iziteshi zokupholisa ezihlanganisiweyo kwii-valve manifolds, okanye iibhloko ze-cylinder ezininzi. Kulapho imodeli yethu yamandla amabini ibalulekileyo. Siphosa i-17-4PH ngokuphosa utyalo-mali-kungekhona isanti-ukuphumeza uburhabaxa bomphezulu obuphantsi njenge-Ra 3.2 μm kunye nokuzinza kwe-dimensional ngaphakathi kwe-± 0.3% yobukhulu obuqhelekileyo.
Kodwa ukuphosa i-17-4PH kwazisa umngcipheko: i-shrinkage porosity, ulwahlulo kumacandelo ashinyeneyo, kunye ne-embrittlement ukuba amazinga okupholisa asuka kwi-5-10 ° C / s. Iqela lethu le-Foundry libeka iliso ekuqinisweni ngomfanekiso oshushu, luhlengahlengisa uyilo lokungena kusetyenziswa i-MAGMASOFT simulation, kwaye iqinisekisa ukugalelwa ngakunye ngovavanyo lwe-ultrasonic (ASTM E114) kunye nokuhlolwa kwe-macro-etch. Yonke into yokuphosa ithwala i-ID yobushushu obukhethekileyo obudityaniswe nengxelo yayo yeekhemikhali, ilogi yomjikelo we-thermal, kunye neziphumo ze-NDT-zilandeleka ngokupheleleyo kwibhetshi yezinto ezikrwada.
Ukuqinisekiswa Kwehlabathi Lokwenyani-Hayi Ukuthotyelwa Kwephepha Kuphela
Ukuthobela akuthethi nto ngaphandle komxholo. Xa i-OEM yaseYurophu idinga i-17-4PH i-piston pump cylinder cylinder housings kwiimpompo zangaphantsi kolwandle, bachaza i-ASTM A564, H900, kunye nokumelana nokutshizwa kwetyuwa ≥1,000 iiyure nge-ASTM B117. Kodwa abazange bacacise indlela yokusingatha i-12-mm-thick flange-to-barrel transition-i-stress riser eyaziwayo.
Siye saqhuba imodeli yokudinwa eqhutywa yi-FEA, songeza i-localized shot peening kwi-fillet radius, kunye nokuqinisekiswa kolwandiso lobomi kunye novavanyo lwe-500,000-cycle hydraulic pulsation kwi-4,500 psi. Iinxalenye zadlula. Okubaluleke ngakumbi, bathunyelwa ngeshedyuli-kuba inkqubo yethu yokucwangcisa ebhityileyo ilandelelanisa unyango lobushushu, umatshini, kunye nokugqiba ngokuhambelanayo, hayi uthotho. Ixesha lokukhokela iPrototype: Iintsuku ezili-18. Umthamo ophakathi (500 pcs): Iintsuku ezingama-32. Zonke ngamaxwebhu apheleleyo e-PPAP, kubandakanywa izifundo ze-MSA kunye nezicwangciso zokulawula.
Ukuba iprojekthi yakho elandelayo ye-17-4PH ifuna ingqibelelo ye-dimensional phantsi koxinzelelo, ukuxhathisa kwe-corrosion kumajelo ahlaselayo, kunye nokunyamezela kwe-zero kwizinto ezimangalisayo zokubonelela-qala ngeqabane eliphatha isayensi ye-alloy njengento engenakuxoxisana, engakhethi. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza njengenyani 17-4PH umzi-mveliso: Idityaniswe ngokuthe nkqo, iqeqeshelwe isinyithi, kwaye iyinjineli yokuthembeka okubalulekileyo kubuthunywa. Indlela yabo ayihambelani nee-specs-ilindele iindlela zokungaphumeleli ngaphambi kokuba isixhobo sokuqala sichukumise isinyithi.
