Zigawo zamafakitale zogwira ntchito kwambiri sizimalephera chifukwa chosapanga bwino - zimalephera pamene machitidwe akuthupi, kuwongolera kowoneka bwino, ndi njira zolemetsa zimasokonekera. Ichi ndichifukwa chake ma OEM otsogola a hydraulic system, ophatikiza zida zamafuta, komanso opanga mapampu olondola amadumphadumpha wamba kapena makina opangira zinthu. ufa zitsulo zitsulo fakitale mayankho-makamaka pamene zigawo zimafuna> 1200 MPa mphamvu zolimba, kuvala kukana pa 500 ° C, kapena zero porosity m'madera ovuta kwambiri.
Tazionera tokha: womanga mpope wa ku Ulaya adasintha nyumba za silinda za mchenga ndi zitsulo zosapanga dzimbiri 4605 zokonzedwa ndi PM-ndikudula zolephera ndi 73% pa miyezi 18. Chifukwa chiyani? Osati chifukwa zitsulo za ufa ndi "zatsopano," koma chifukwa zimapereka kufanana kwa microstructural palibe ndondomeko yochokera ku ingot yomwe ingafanane. Malire a mapira amakhala abwino komanso isotropic. Kugawa kwa Carbide kumakhalabe koyendetsedwa. Ndipo kuchepa? Zodziwikiratu mkati mwa ± 0.02 mm-ngakhale panyumba za 320-mm-diameter yokhala ndi mayendedwe ozizirira mkati ndi 0.8-µm Ra pamwamba amamaliza.
Mlingo woterewu umafuna zambiri kuposa ng'anjo yosindikizira ndi sinter. Pamafunika kuphatikizika koyima pazigawo zitatu zosakambitsirana: certified yaiwisi ya ufa wopangira, kutsekeka-loop-makinika kuwongolera njira, ndi kutsimikizika kwa metrology-backed-osati pakuwunika komaliza, koma pagawo lililonse kuchokera pamapu obiriwira obiriwira kupita ku HIP pambuyo pa chithandizo. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., izi sizongopeka. Malo awo ogwirizana ndi ISO ku Qingdao amayendetsa zitsulo zonse za PM-kuchokera ku ufa wopangidwa kale ndi gasi (monga PH13-8Mo, Custom 465®, ndi AMS 5387-compatible cobalt-steel hybrids) kudzera mukuphatikizana kutentha, vacuum sintering ndi kukanikiza kwapansi pa CHI, confing CHI denga.
Izi ndi zomwe zimalekanitsa njira yawo ndi masitolo amtundu wa "PM-cable":
- Kufufuza kwazinthu kumayamba ufa usanalowe mu hopper: Gulu lililonse limanyamula CoA yathunthu ndi kusanthula kwa OES + LECO, kuphatikiza kutsimikizika kwa SEM/EDS kwa zomwe zili ndi okusayidi ndi kugawa kwa tinthu tating'onoting'ono (D10/D50/D90 yolowetsedwa pa ASTM B822).
- Umphumphu wa mbali yobiriwira umayesedwa-osati kuganiziridwa: In-line CT scanning imatsimikizira kachulukidwe kachulukidwe gradient pamaso sintering; zopatuka > ± 0.05 g/cm³ zimayambitsa kusintha kwa ndondomeko, osati kukonzanso pamanja.
- Sinter-HIP sizotsatizana - ndi synergistic: Ng'anjo yawo yazipinda ziwiri imagwiritsa ntchito mphamvu ya nayitrogeni yoyendetsedwa pang'onopang'ono panthawi yotentha, kenako imasinthira mwachindunji ku argon HIP pa 1150 ° C/150 MPa-kuchotsa chiwopsezo cha okosijeni ndikupangitsa kuti kachulukidwe kafupipafupi (99.8% TD) mu ma geometries ovuta ngati matupi a valve ambiri.
- Kukhazikika kwapang'onopang'ono kumapangidwa - osalipidwa: Amagwiritsa ntchito njira yochepetsera kupsinjika * pambuyo pa * HIP koma * asanamalize * kupanga, pogwiritsa ntchito mbiri yanthawi yotentha yomwe imatsimikiziridwa motsutsana ndi mapu otsalira opsinjika (XRD + kubowola mabowo). Zotsatira: tsamba la nkhondo limakhalabe pansi pa 0.015 mm pamikono ya pistoni yautali wa 200-mm-ngakhale pambuyo pa mphero ya 3-axis ya ma grooves osindikizira ndi madoko ozungulira.
Ena anganene kuti chitsulo cha PM chimawononga ndalama zam'tsogolo kuposa kuponya ndalama. Koma titafufuza mtengo wa umwini wa nyumba ya Tier-1 hydraulic valve housing (ASTM F2997 Grade 3), njira ya PM inapereka 22% mtengo wotsika wa moyo wonse-osati kuchokera kuzinthu zotsika mtengo, koma kuchokera ku zowonongeka (zokolola zotayika: 68%; zokolola za PM: 94%), kuchepetsa ntchito zachiwiri (palibe kuchotsa zipata, palibe kukonzanso kwa TB 8) Maola 14,600 muzitsulo zoyesera zokwera njinga).
Cholepheretsa chenicheni si tekinoloje - ndikugwiritsa ntchito bwino. Timalandilabe mafoni mlungu uliwonse kuchokera kwa mainjiniya akufunsa kuti: "Kodi PM atha kuthana ndi kukwera kwathu kwa 1200-bar?" kapena "Kodi T800-based PM ikhalabe ndi kuuma pambuyo pa nitriding?" Yankho limadalira pang'ono pa ufa komanso zambiri momwe tcheni chonsecho chimalimba-kuchokera ku kusankha kwa ufa morphology kupita ku HIP ramp rate-chimagwirizana ndi envelopu yanu yogwira ntchito. Mwachitsanzo: ufa wozungulira umapatsa kachulukidwe kobiriwira koma osayenda bwino m'zigawo zokhala ndi mipanda yopyapyala; particles osakhazikika bwino kudzaza koma kuonjezera ngozi mphamvu ejection. Palibe pepala lodziwika bwino. Pali njira yodziwiratu zochitika zokha.
Ichi ndichifukwa chake QINGDAO QIANGSENYUAN imayika akatswiri azitsulo-osati obwereketsa ogulitsa-pakuwunika koyambirira kwaukadaulo. Amayimitsa mikangano ya GD&T isanayambe kugwiritsa ntchito (mwachitsanzo, kufotokoza kulolerana kwa mbiri pamalo osokonekera m'malo mongoyimbirana zomwe zimatengera kukhazikika kwa datum). Adzalimbikitsa njira zochizira kutentha zomwe zatsimikiziridwa pazofananira za AMS 5387-osati "zitsulo zosapanga dzimbiri" wamba. Ndipo adzagawana malipoti a CMM aiwisi, zipika za HIP, ndi zithunzi zazitsulo - osati kungodutsa / kulephera masitampu.
Kuyang'ana m'tsogolo, kusintha kwamphamvu kwambiri sikupita ku ufa wonyezimira kapena kupanikizika kwambiri - ndi nzeru zopanga zosakanizidwa. Ganizirani: ma sintered cores okhala ndi malo osindikizira, nyumba zomangidwa ndi HIP zokhala ndi ma geji ophatikizika, kapena ma billets opangidwa ndi PM omwe amapangidwa molingana ndi njira yokhazikika asanayambe kugunda koyamba. Awa si malingaliro a R&D. Ndi mapulojekiti amoyo omwe akuyenda lero ku malo ngati QINGDAO QIANGSENYUAN's-komwe fakitale yazitsulo yazitsulo yazitsulo imakumana ndi chilango cholondola, osati ngati mautumiki osiyana, koma monga chotsatira chimodzi chokha.
Ngati valavu yanu yotsatira yothamanga kwambiri, shaft ya winchi, kapena nyumba yopopera iyenera kupereka ntchito yobwerezabwereza-osati kungokumana ndi zojambula-simukusankha wogulitsa. Mukusankha bwenzi lothandizira lomwe kulimba kwake kwazitsulo kumafanana ndi mbiri yanu yachiwopsezo. Izi zimayamba ndikufunsa mafunso oyenerera-osati za mtengo pa kilogalamu, koma za kubwereza kwa kachulukidwe kobiriwira, zolemba zovomerezeka za HIP, ndi momwe amachitira zinthu za okosijeni wakunja muzakudya zobwera ufa. Chifukwa m'mapulogalamu ofunikira kwambiri, malire a zolakwika amakhala mu microstructure-osati kabuku kakutsatsa.
