Kuponyedwa kwachitsulo chotuwa kumapereka kulimba kosayerekezeka komanso kutsika mtengo kwazinthu zamafakitale zopsinjika kwambiri, makamaka komwe kumachepetsa kugwedezeka, kukana kuvala, komanso kukhazikika kwamafuta ndikofunikira kwambiri. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., tapanga pa 12,000 imvi chitsulo kuponyera mayunitsi kwa hayidiroliki vavu matupi, mpope housings, ndi injiniya galimoto ananyema ng'oma kuyambira 2020. Chigawo chilichonse akukumana ASTM A48 Kalasi 30B osachepera makoma mphamvu (207 TMMiteled kulamulira Amorphology) A247-chifukwa kugawanika kwa flake kumayambitsa kutopa kwanthawi yayitali m'miyendo ya silinda pansi pa kukakamizidwa kwa cyclic.
Chifukwa Chake Gray Iron Imapambanabe Pomwe Imawerengera
Akatswiri ena amaganiza kuti chitsulo chachitsulo kapena chitsulo chiyenera kulowa m'malo mwa chitsulo chotuwira pa ntchito yovuta. Koma zenizeni zenizeni zimafotokoza nkhani yosiyana. Pakafukufuku waposachedwa wa nyumba 475 zapampu za piston kudutsa zombo zamafuta aku North America, mitundu ya chitsulo chotuwira idatenga nthawi yayitali 18% kuposa ma ductile iron mayunitsi ofanana ndi 3,000-psi pulsating katundu. Chifukwa chiyani? Ma graphite flakes amakhala ngati nkhokwe zomangiramo mafuta panthawi yopaka mafuta m'malire, ndipo amayamwa mphamvu zomwe zikanalowa m'mabulaketi ndi zidindo.
Timawona izi tsiku ndi tsiku pamzere wathu woponyera mchenga: pamene makasitomala asintha kuchoka ku chitsulo cha ductile kupita ku ASTM A159 G3000 chitsulo cha imvi cha winch center shaft rollers, nthawi yopangira makina imatsika 22% chifukwa cha kuuma kwapansi (187-229 HBW vs. 241-269 HBW) ndi khalidwe lapamwamba la chip-breaking. Izi sizongopeka - zimayezedwa pa Okuma MULTUS U3000 ma CNC amitundu yambiri pomaliza kutembenuza. Palibe njala yoziziritsa. Palibe kuyankhulana kwa chida. Kusasinthasintha kokha kumathera pa Ra 1.6 µm.
Iron Grey imathetsanso zovuta zowongolera kutentha zomwe zida zina sizingathe. Maziko a pampu omwe amawonekera kumadzi otentha kwapang'onopang'ono (monga 60 ° C mpaka 120 ° C mumayendedwe a 90-sekondi) amawonetsa 40% kuchepetsedwa kwa kutentha kwachitsulo ndi chitsulo chotuwa motsutsana ndi zitsulo zosapanga dzimbiri 316. Chifukwa chake? Kutentha kwapamwamba kwambiri (50 W / m·K vs. 16 W / m·K) ndi kutsika kwapakati kwa kuwonjezereka kwa kutentha (10.4 × 10⁻⁶/°C vs. 16 × 10⁻⁶/°C). Timatsimikizira izi pogwiritsa ntchito infrared thermography poyesa magwiridwe antchito - osangoyerekeza.
Mtengo Wobisika wa "Cheap" Gray Iron Castings
Sikuti imvi yonse imagwira ntchito mofanana. Tasanthula matupi 31 a othandizira a ASTM A48 Kalasi 25 ma valve olimba achitsulo - ndipo tidapeza 68% yalephera macheke azitsulo. Nkhani zodziwika bwino zimaphatikizapo phosphorous wochuluka (> 0.12%), zinthu zosalamulirika za pearlite (<80% m'magawo onyamula katundu), ndi magnesiamu yotsalira kuchokera kukuthira kwachitsulo kwa ductile. Zolakwika izi zimayambitsa kusweka pang'onopang'ono poyambira kozizira kapena kutengeka pang'ono pambuyo pakuwotcha.
Ku QINGDAO QIANGSENYUAN, chitsulo chilichonse chotuwa chimasungunuka chimayamba ndi chitsulo chotsimikizika cha phosphorous cha nkhumba (≤0.05% P) ndi zoyenga zambewu za ferrosilicon. Timakhala ndi chofanana ndi kaboni (CE) pakati pa 3.7-4.1 kuti tiyese mphamvu yamadzimadzi ndi mphamvu - osathamangitsa ziwerengero zotsika kwambiri potengera machinability. Zolemba zathu za ng'anjo zimatsata mitengo ya sulfure, manganese, ndi kuzizira munthawi yeniyeni. Ngati CE isuntha kupitirira ± 0.05, timachotsa kutentha - osati kuchepetsa.
Chilango chimenecho chimapindulitsa. Makasitomala akuwonetsa kulephera kwa zero pazigawo zathu zapampu zachitsulo zotuwa za AMS 5387 pa miyezi 42 yogwira ntchito mosalekeza m'mapulatifomu aku Southeast Asia. Kukana kwa dzimbiri sikungochitika zokha - koma mawonekedwe athu owongolera amalimbana ndi kupsinjika kwa sulfide kuposa magiredi oyambira.
Nthawi Yoyenera Kusankha Iron Yotuwira Kuposa Njira Zina
Sankhani zojambula zachitsulo zotuwira pamene ntchito yanu ikufuna:
- Kugwedera damping - Zofunikira pazoyambira za compressor, zochepetsera zida, ndi mafelemu oyesera
- Zovala zodzitchinjiriza zokha - yabwino kwa ng'oma zoboola, mbale zolumikizirana, ndi njira zotsogola
- Dimensional bata pansi pa matenthedwe apanjinga - zotsimikiziridwa mu midadada ya injini, manifold otopetsa, ndi ma cores osinthira kutentha
- Kupanga kwapakatikati kotsika mtengo - Imvi chitsulo tooling ndalama kuthamanga 30-50% m'munsimu ndalama kuponyera kwa mbali>5 makilogalamu
Pewani chitsulo chotuwirapo pokhapokha ngati kulimbitsa kwambiri kukufunika (monga mano a ndowa) kapena pamene kutentha kumapitirira 500 ° C mosalekeza. Pa china chilichonse, kuphatikiza ma valve opanikizika okwana 10,000 psi, ma piston pump cylinder housings okhala ndi 0.025 mm bore tolerance, ndi ma winch roller onyamula matani 80 osasunthika, chitsulo chotuwira chimakhalabe chosankha.
Mgwirizano Weniweni Umayamba Ndi Luntha la Material
Kusankha zojambula zachitsulo zotuwa sikuyenera kutanthauza kusankha pakati pa mtengo ndi ntchito. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Timachita kusankha zinthu ngati uinjiniya wothandizana osati kugula zinthu. Gulu lathu limawunikiranso ma callout a GD&T musanatchule, limawonetsa ngozi zomwe zitha kuchulukira m'zigawo zopyapyala za khoma, ndikutsimikizira zofananira za nkhungu motsutsana ndi mayeso enieni othira. Sitimangotumiza zowulutsa - timapereka ma microstructures otsimikizika, kutsata zolembedwa mpaka kuchuluka kwa kutentha, ndi malipoti amtundu wosainidwa ndi oyang'anira ovomerezeka ndi CMM.
Kwa makasitomala omwe amafotokoza za chitsulo chotuwira, timalimbikitsa kuyamba ndi mafunso atatu: Kodi njira yolephereka kwambiri pamapangidwe anu apano ndi iti? Ndi malo ati omwe amanyamula katundu poyerekeza ndi omwe amafunikira kusindikizidwa? Ndipo ma gradient amatenthedwa azigawira bwanji mbali yonse panthawi yogwira ntchito? Yankhani—ndipo tidzakufananitsani ndi giredi yoyenera, njira yosinthira, ndi ndondomeko yoyendera.
Kuponyedwa kwachitsulo chotuwira si teknoloji ya cholowa. Ndi mayankho olondola opangidwa bwino omwe adakonzedwa zaka 150 - ndipo akusinthabe. Pamalo athu ogwirizana ndi ISO ku Qingdao, kutsanulira kulikonse kumapita patsogolo. Chifukwa kulimba sikungokhudza mphamvu. Ndi za kulosera. Kusasinthasintha. Kulamulira.
