Pamene pampu ya hydraulic ikulephera muzitsulo zamafuta za m'mphepete mwa nyanja - kapena valavu ya pistoni ikagwira mkati mwa mpope wa konkire wothamanga kwambiri - chifukwa chake sichimapangidwa kawirikawiri. Ndi kuvala. Osati kungovala kulikonse: ndikubowola pang'ono, kukwiya, komanso kukokoloka kowopsa pansi pazambiri zopitilira 300 MPa. Taziwona pamasamba aku North Sea ku Norway komanso zombo zakumwera chakum'mawa kwa Asia — komwe kulephera kwa manja a Stellite kumatseka ntchito kwa maola 48+. Ichi ndichifukwa chake mainjiniya samafunsa kuti "Ndi manja otsika mtengo kwambiri ati?" Amafunsa kuti, "Ndani angatumize manja a AMS 5387-grade cobalt alloy okhala ndi ≤± 0.015 mm kuzungulira mozungulira, kutsata kutentha kwathunthu, komanso moyo wotsimikizirika wopitilira maola 12,000 ogwirira ntchito?"
Chifukwa chiyani "Fakitale ya Stellite sleeve" singofufuza chabe - ndi fyuluta yatsatanetsatane
"Stellite sleeve Factory" imasonyeza zambiri kuposa kupanga. Ndiwofupikitsa pakuwongolera zitsulo, kulondola kwa makina, komanso kuzindikira kwamachitidwe olephera. Stellite alloys—makamaka Stellite 6 (AMS 5387) ndi T800—samapangidwa ngati chitsulo chosapanga dzimbiri. Matrix awo a cobalt-chromium-tungsten amakana zida zodulira, amagwira ntchito molimba mtima, ndipo amafuna kukhazikika kwamafuta pakupera. A zoona Fakitale ya stellite sleeve Ayenera kuwongolera zinthu zitatu zomwe sizingagwirizane: chiphaso cha zinthu zopangira (malipoti oyesa mphero pa ASTM F75 kapena AMS 5732), mpumulo wapambuyo popanga makina kuti apewe kugwedezeka kwapang'onopang'ono, komanso kutsimikizira kukhulupirika - osati ma Ra, komanso kuzindikira kwa microcrack kudzera pakuyezetsa kolowera kwa fulorosenti.
Tasanthula ogulitsa opitilira 30 omwe akufuna ukadaulo wa Stellite. Theka silinathe kutulutsa ID yobwerezabwereza pansi pa Ra 0.4 µm pa 120-mm bore. Mmodzi woperekedwa manja ndi 0.08 mm kunja-ozungulira-ovomerezeka kwa mavavu otsika, zoopsa kwa mapampu axial piston. Kusiyanaku kuli pakuphatikizana koyima: kuwongolera kapangidwe ka tirigu, kukhathamiritsa kwa zida za CNC zama aloyi a cobalt, ndikuwunika kwa CMM pagawo lililonse - osati kungoyang'ana komaliza.
Mphamvu zinayi zomwe zimalekanitsa opanga manja a Stellite oyenerera ndi mashopu azitsulo wamba
Fakitale yeniyeni ya manja a Stellite imagwira ntchito pamphambano za magawo atatu: zitsulo, makina olondola, ndi kutsimikizira ntchito. Izi ndi zomwe timatsimikizira tisanavomereze ogulitsa:
- Kufufuza kwazinthu mpaka pagawo la ingot-osati manambala a batch okha, koma malipoti ovomerezeka a mankhwala ofanana ndi AMS 5387 spec (C: 0.9-1.4%, Cr: 27-31%, W: 3.5-5.5%, Co balance)
- Multi-axis CNC kuthekera kokhala ndi zida zokhazikika- palibe lathes muyezo; timafunikira zida za Y-axis zamoyo komanso zoziziritsa kupyolera muzitsulo zowongolera kuti tithandizire kuthamangitsidwa kwa chip ndi kupotoza kwa kutentha.
- Kuphatikiza chithandizo cha kutentha-solution annealing pa 1175 ° C ± 10 ° C ndikutsatiridwa ndi kuziziritsa kwachangu kwa mpweya, kutsimikiziridwa ndi kuuma kwa mapu kudutsa magawo osiyanasiyana (HRC 38-44, yunifolomu mkati mwa ± 2 mfundo)
- Ntchito zoyeserera zoyeserera-osati macheke ang'onoang'ono, koma kuyezetsa kofananira kwautumiki: kuyesa kwa maola 500 motsutsana ndi mawonekedwe olimba a 420SS pansi pa 200 MPa hydraulic load
Popanda zonse zinayi, mukugula magawo-osati chitsimikizo cha ntchito. Tawona manja akudutsa CMM koma amalephera pambuyo pa ma 800 chifukwa kupanikizika kotsalira kunayambitsa kuwotcherera kwazing'ono pamawonekedwe otsetsereka. Ndicho chifukwa QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. imayika akatswiri azitsulo pokonzekera kupanga-osati ngati alangizi, koma monga eni ake.
Mtengo wobisika wa manja a "Stellite" - ndi momwe geometry yokhazikika imawonjezera phindu
Ogula ena amaganiza kuti manja a Stellite amagulitsidwa. Iwo sali. Miyezo yokhazikika ya OD/ID imanyalanyaza zenizeni zenizeni: kukulitsa kwamafuta kusagwirizana pakati pa manja ndi nyumba, kukweza kwapampu muzopanga zamapampu, kapena kunjenjemera kochititsa chidwi pagawo la flange. Nthawi ina tidasinthana ndi manja amtundu wapampopi ya migodi ndi mtundu wina wokhala ndi zotchingira zopindika komanso ma radial vent grooves. Zotsatira: 3.2 × moyo wautali wautumiki, kutayikira kwa zero, ndikuchotsa nthawi yosakonzekera. Mtengo wa "mwambo" unali wapamwamba 18%. ROI? $217,000 amasungidwa pachaka pantchito, zida zosinthira, komanso kupanga kotayika.
Mafakitole enieni a Stellite samangodula kuti asindikize-amafunsanso ntchito. Makasitomala akatitumizira zojambula za GD&T, funso lathu loyamba si "Kodi tingathe?" Ndi "Kodi njira yolephereka kwambiri yololera izi imalepheretsa chiyani?" Malingaliro amenewo amasintha zokambirana kuchokera pamtengo pamtengo kupita ku mtengo pa ola lililonse.
Kumene kulondola kumakwaniritsa kudalirika-komanso chifukwa chake kumayambira kalekale asanadulidwe koyamba
Fakitale ya Stellite sleeve imapeza chidaliro osati pagawo lomalizidwa, koma pakuwongolera kwake kumtunda. Pa QINGDAO QIANGSENYUAN TECHNOLOGY, kuvomera kwa zinthu kumayamba ndikuwunika kowoneka bwino kwa bar iliyonse yomwe ikubwera ya cobalt alloy. Machining amagwiritsa ntchito ISO 2768-mK kulolerana ngati maziko - osati monga chandamale, koma chocheperako. Manja aliwonse amayesa 100% akupanga kuyezetsa kwa mkati, kenako optical profilometry kuti apange mapu pamwamba pa 5-µm kusamvana. Kupaka komaliza kumaphatikizapo ziphaso za batch-enieni zomwe zimaphimba chemistry, kuuma, deta yowoneka bwino, ndi zolemba zoyesa zosawononga - zotsatiridwa ndi zomwe zimasungunuka.
Izi sizowonjezera-injiniya. Ndi kuchepetsa chiopsezo. Chifukwa pamene ntchito yanu ikuyenda pa 15,000 psi ndi madzi otsekemera a mchenga, palibe mwayi wachiwiri. Muyenera a Fakitale ya stellite sleeve zomwe zimawona gawo lililonse ngati lofunikira kwambiri - osati chifukwa limatero patsamba, koma chifukwa machitidwe awo amasiya malo ongoganiza. Ndiwo muyezo womwe timasunga - ndi omwe mainjiniya amafunikira kwambiri.
