Zomera za alloy zimathetsa zovuta zenizeni zadziko lapansi komanso zolakwika - zikapangidwa bwino. Tawonapo ma hydraulic pump pampu akulephera pambuyo pa maola 4,200 ogwirira ntchito chifukwa mabakiteriya amkuwa amkuwa amapunduka chifukwa cha kuchuluka kwa ma cyclic radial. Tasintha manja owongolera achitsulo osweka m'malo opangira ma winch akunja ndi miyambo kuphulika kwa alloy kuyika-ndi moyo wautali wautumiki ndi 3.7 ×. Izi sizongoyerekeza. Ndizitsulo zotsimikiziridwa ndi munda zomwe zimagwiritsidwa ntchito pa geometry yogwira ntchito.
Chifukwa chiyani ma Bushings Okhazikika Amalephera Pansi pa Zonyamula Zamakampani
Zolephera zambiri zimabwereranso ku malingaliro atatu osagwirizana: katunduyo ndi static, kutentha kumakhala kosasintha, ndipo kukhudzana kwapamwamba kumakhala kofanana. M'malo mwake, nyumba za silinda zapampu za piston zimawona kuthamanga kwapamwamba kuposa 450 bar pomwe kutentha kwamafuta kumasintha kuchoka pa 35 ° C mpaka 110 ° C panthawi yantchito. Mpata wofutukuka wa kutentha uwo? Ndipamene kusakhazikika kumayambira. Zitsamba zamkuwa zimafewetsa pafupifupi 150 ° C. Chitsulo-pa-chitsulo cholumikizira ndulu popanda ma coefficients owongolera amakangana. Ndipo chitsulo choponyedwa chilibe kukhazikika kwapang'onopang'ono kofunikira pakulolerana kwa sub-0.015 mm pamisonkhano yothamanga kwambiri.
Tidatsata zolephera za 68 pamakina opangira ma hydraulic magalimoto opitilira miyezi 18. 73% idakhudza kugoletsa msanga m'mabuku a shaft - osabwera chifukwa cha kuipitsidwa, koma chifukwa cha kukwapula kwamakasitomala opitilira 120 MPa. Choyambitsa chake sichinali dothi. Zinali zokolola zakuthupi.
Zida Zopangira Aloyi: Kufananiza Chemistry Kuti Igwire Ntchito
Sikuti ma alloy bushings onse amagwira ntchito mofanana. Cobalt-nickel alloys ngati AMS 5387 amapereka kuuma pamwamba pa 45 HRC ndi kuwonjezereka kwa kutentha kwapafupi ndi ziro pansi pa 500 ° C. T800 cobalt-based grade amakhalabe mphamvu yopondereza pamwamba pa 1,100 MPa pa 600 ° C - yofunikira kwambiri pamipumi yapampopi yapansi yomwe imawululidwa ndi mpweya wowawasa ndi mchenga wophulika. Ma iron cast okhala ndi 3.2% chromium ndi 1.8% molybdenum amakana kuphulika kuposa chitsulo chotuwira-koma pokhapokha atatenthedwa mpaka 28-32 HRC ndikumaliza mpaka Ra ≤0.4 μm.
Izi ndi zomwe zimagwira ntchito-ndi chifukwa chake:
- Cobalt-nickel (AMS 5387): Yabwino kwambiri yonyamula katundu > 100 kN ndi kutentha > 400°C. Imasunga kukhazikika mkati mwa ± 0.002 mm pamizere 10,000.
- T800 cobalt aloyi: Ndibwino kwa malo osapaka mafuta kapena opaka pang'ono. Coefficient of friction imakhala pansi pa 0.28 ngakhale pakatha maola 500 youma.
- Chromium-molybdenum chitsulo: Zotsika mtengo zamavavu apakati-pakatikati pomwe liwiro la pamwamba limakhala pansi pa 1.2 m/s ndipo kutentha kozungulira kumakhala pansi pa 120°C.
Kugwiritsa ntchito aloyi ya cobalt m'nyumba yokhala ndi zida zotsika kwambiri? Zokwera mtengo - komanso zotsika mtengo. Kugwiritsa ntchito chitsulo choponyedwa pamaziko ampope akunyanja? Kusungidwa kotsimikizika mkati mwa miyezi 18. Kusankha kwazinthu sikukhudzana ndi zolemba. Ndizokhudza malire.
Kupanga & Kupanga: Kumene Kulondola Kumakhala Kugwira Ntchito
Chemistry yabwino ya alloy sikutanthauza kanthu popanda geometry yeniyeni. Tima makina a cobalt alloy bushings pa malo a 5-axis CNC okhala ndi miyala yamkati ya diamondi-kufikira kuzungulira ≤0.003 mm ndi kutsiriza pamwamba Ra 0.2 μm. N’chifukwa chiyani zimenezi zili zofunika? Chifukwa chikhalidwe cha 0.008 mm chozungulira chimawonjezera kupsinjika kwapafupipafupi ndi 47% pamalo okwera. Apa ndipamene ma microcracks nucleate.
Njira yathu imaphatikiza kuponya ndi makina mwadala. Panyumba za silinda ya pampu ya pisitoni, timaponyera chipolopolo chakunja mu chitsulo cha ductile (ASTM A), kenako ndikusindikiza cholumikizira chopangidwa ndi makina a cobalt alloy. Kusokoneza kokwanira kumapondereza liner motalikirapo - kupanga zolowetsamo zomwe zimawerengera kupsinjika kwa magwiridwe antchito. Palibe zomatira. Palibe zocheperako. Basi metallurgical synergy.
Gulu lililonse limakumana ndi kutsata kwathunthu: ma cert aiwisi, mitengo yotenthetsera kutentha, malipoti a CMM pa ASME Y14.5, ndikuyesa komaliza kogwira ntchito pakukakamizidwa ndi liwiro. Ngati chitsamba chikuzungulira 1,800 rpm mkati mwa shaft ya winch, timachiyesa pa 2,200 rpm kwa mphindi 30 tisanatumize.
Nthawi Yomwe Mungatchule Kuphulika kwa Alloy-Ndipo Pamene Osatero
Sankhani ma alloy bushings ngati izi zikugwira ntchito:
- Kupatuka kwa shaft kumapitilira 0.025 mm pansi pa katundu wambiri
- Kutentha kwa ntchito kumasinthasintha kuposa 60 ° C panthawi yanthawi yantchito
- Liwiro la pamwamba limaposa 1.5 m / s ndi mafuta opaka pakanthawi
- Gawo limafuna ASME B16.34 kapena API 6A certification
Osawafotokozera za static, zolemetsa zochepa ngati ma pivots a panel panel kapena zogwirira ma valve pamanja. Khalani ndi phosphor bronze pamenepo. Sungani magwiridwe antchito a aloyi komwe kuli kofunikira: mavavu oponderezedwa akuthamanga maulendo 12 pa mphindi imodzi, maziko a pampu omwe amathandizira unyinji wozungulira wa matani 8, kapena ma winch shaft akunyanja omwe amapirira dzimbiri ndi kupopera mchere komanso kutsitsa modzidzimutsa.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. amamanga zigawo izi-osati ngati zinthu zamakalata, koma ngati zolumikizira zofunikira padongosolo. Timatsimikizira ma callout a GD&T tisanadule zitsulo. Timayika ma angles omwe amakoka mpweya panthawi yoponya. Timayesa chilichonse kuphulika kwa alloy motsutsana ndi zida zanu zenizeni-osati chitsulo chosasinthika.
Kuvala ndi kulakwitsa sikungalephereke. Izi ndi zizindikiro za zinthu zosagwirizana, kulolerana kosasamala, kapena mawonekedwe osavomerezeka. Athetseni poyambira—osati ndi ndandanda yokonza, koma ndi mayankho olondola. Umu ndi momwe mumasunthira kuchoka m'malo osasinthika kupita kukuchita zodziwikiratu.
