Makina opangira ma hydraulic akalephera m'mafakitale opangira mafuta a m'mphepete mwa nyanja - kapena pamene makina opopera agwira m'mafakitale amadzi onyansa okhala ndi mchere wambiri - chifukwa chake sichimapangidwa kawirikawiri. Ndi dzimbiri. Osati dzimbiri pamwamba. Osati zodzikongoletsera pitting. Tawonapo mavavu akusweka pakatha miyezi 18 m'malo okhala ndi chloride, ngakhale ndi zitsulo zosapanga dzimbiri zosindikizidwa pachithunzichi. Ichi ndichifukwa chake mainjiniya aku North America ndi Europe tsopano amafunsa funso limodzi poyamba: Kodi fakitale yolimbana ndi dzimbiri imakhala pati mu chain chain yanu?
Kukana kwa dzimbiri si zokutira - kumapangidwira mu aloyi, ndondomeko, ndi kuyankha.
Kukana dzimbiri koona kumayamba makina asanayambe. Amakhala muzitsulo zosakanikirana za AMS 5387 cobalt alloy-komwe kusintha kwa carbon-to-batch pansi pa 0.02% kumapangitsa kusiyana pakati pa zaka 5 zautumiki ndi microcracking msanga. Imakhala mu nozzles zochokera ku T800 zomwe zimakhala zokhazikika pa 650 ° C pomwe zimakana sulfidation mu mizere ya mpweya wowawasa. Ndipo imakhala m'chilango chokana kuponyera kutentha ngati kuyesa kwa akupanga kukuwonetsa kuphatikizika kwa gawo limodzi pamwamba pa 0.3 mm.
Tatsimikizira izi pamapangidwe 47 a pampu yaku Germany OEM: magawo opangidwa kuchokera ku mchenga wa ASTM A487 Gulu la CA6NM adawonetsa moyo wautali wautumiki wa 3.2 × kuposa ma geometries ofanana kuchokera kwa ogulitsa omwe amagwiritsa ntchito zitsulo zosatsimikizika. Chifukwa chiyani? Kutsata. Malo aliwonse osungunuka amakhala ndi malipoti athunthu a PMI, ma curve okhazikika, ndi data yoyesera ya intergranular corrosion - osati satifiketi ya mphero.
Mulingo wowongolera uwu umafuna kuphatikiza koyima. Simungathe kutulutsa kunja, ndiye kuyembekezera kuti masitolo a CNC alipirire kupatuka kwa zida za porosity. Simungadalire zopangira kutentha za gulu lachitatu pamene nyumba yanu ya silinda ya piston ikufuna kukalamba kwapawiri pa 925°C + 725°C ndi ±3°C kulolerana. Ichi ndichifukwa chake fakitale yolimbana ndi dzimbiri imayenera kukhala ndi lupu yonse: risiti yazinthu → kuponyera → kuchepetsa kupsinjika → makina olondola → kupitilira komaliza kapena zokutira za HVOF.
Magulu anayi azinthu-ndi chifukwa chake amagawana njira imodzi yolephera
Kulephera kofala kwambiri pama valve opanikizika, ma winch center shaft rollers, ndi mapulagi a cobalt alloy si geometry. Ndi kusagwirizana kwa mawonekedwe. Makamaka:
- Zigawo zamakina za CNC okhala ndi ma callout olimba a GD&T (± 0.01 mm kulolerana) koma oponyera magawo okhala ndi nkhawa yotsalira> 120 MPa;
- Cobalt-nickel zigawo kumene kusiyana kwa kutentha kwapakati pakati pa thupi la AMS 5387 ndi zoyika za Inconel 718 kumapanga ma microgaps panthawi yotentha;
- Kuponyedwa kwachitsulo ndi kugawa kosafanana kwa ma graphite nodule - zomwe zimatsogolera ku maselo amtundu wa galvanic m'malo onyowa a hydrogen sulfide;
- Zopangira zitsulo zosapanga dzimbiri kumene mpweya wa sigma gawo umachitika chifukwa cha kuzizira kosalamulirika pambuyo pa kuwotcherera, osati chemistry yoyipa.
Tidagwira onse anayi pakuwunika kwaposachedwa kwa ogulitsa 12 omwe akufunafuna makina opangira ma winch a injiniya. Malo amodzi okha-okhala ndi ma labu amkati azitsulo, mapu otenthetsera olumikizidwa ndi CMM, ndi kutsimikizika kovomerezeka kwa ISO 17025-ndi zomwe zidakumana ndi ntchito ya dzimbiri: kutayikira kwa ziro pambuyo pa mizungu 2,000 pa bar 350 m'madzi a m'nyanja opangidwa.
Chifukwa chiyani "kusamva dzimbiri" sizitanthauza kanthu popanda kuwongolera njira
Ogulitsa ena amatchula kuthekera kwa "fakitale yolimbana ndi dzimbiri" - koma perekani ndi kayendedwe ka CNC. Izi zikulephera chifukwa:
Choyamba, ma aloyi a cobalt ngati T800 amafunikira zida za carbide zokhala ndi ma angles a 8° negative ndi zoziziritsa kukhosi pa 65 bar pressure —osati makonda apansi pa sitolo. Chachiwiri, kupanga ndalama kumafunikira HIP (kutentha kwa isostatic) pa 1150 ° C / 150 MPa kutseka microporosity yomwe imakhala njira za electrolyte. Chachitatu, kutsirizitsa kwapamwamba: Ra 0.4 μm pampando wa vavu amachepetsa kuyambika kwa dzimbiri ndi 70% motsutsana ndi Ra 1.6 μm, pa kutsimikizika kwa NACE MR0175/ISO 15156.
Timayendetsa gawo lililonse la cobalt kudzera pakuwunika katatu kodziyimira pawokha: pre-machining (PMI + kukula kwambewu), post-machining (CMM + dye penetrant), ndi komaliza (kupopera mchere pa ASTM B117 + electrochemical impedance spectroscopy). Ngati EIS ikuwonetsa kukana kusuntha kwa ndalama pansi pa 12 kΩ·cm², gawolo limatumiza-osati "monga dzimbiri," koma monga "kukonzanso kofunikira." Palibe kuchotserapo.
Yang'anani kupyola pa pepala - onani zomwe zimapulumuka kutumizidwa padziko lonse lapansi
Fakitale yolimbana ndi dzimbiri imapeza dzina lake m'munda, osati labu. Timatsata zobwerera m'munda: 92% ya magawo a pampu a AMS 5387 omwe adayikidwa muzomera zakumwera chakum'mawa kwa Asia adafika zaka 4+ popanda kukonza. Zolephera za zero zidachitika m'magawo a 1,842 omwe adatumizidwa kumadera akum'mphepete mwa nyanja ya North Sea-ngakhale akukumana ndi 3.5% NaCl, 12 ppm H₂S, ndikukweza mpaka 700 bar.
Kudalirika kumeneko kumachokera ku zisankho zomwe zidapangidwa chip choyamba chisanawuluke: kupeza cobalt kuchokera kumakampani oyenga ovomerezeka ku Finland-osati masheya osakanikirana; kutsimikizira kuyerekezera koyerekeza ndi mamapu enieni a microstructure; ndikuyika malo oyendera pomwe pali zolakwika - osati pazipata zokha. Mukafuna magawo omwe samangokumana ndi ASTM G48 kapena ISO 9223 Kalasi C5-Ine, mumafunikira mnzanu yemwe amayesa kukana dzimbiri ngati physics, osati kutsatsa.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. imagwira ntchito ngati fakitale yolimbana ndi dzimbiri yokhazikika pazotsatira zomwe zingapimizidwe - osati malonjezo. Malo ake ogwirizana ndi ISO ku Qingdao amapereka kulondola kwazithunzi, kukhulupirika kwazitsulo, komanso kutsata zolembedwa pazigawo zomwe zimagwira ntchito pomwe kulephera sikungatheke. Pamayankho ofunikira amakampani, kulimba kumayamba ndi momwe kukana kwa dzimbiri kumapangidwira - osangotchulidwa.
