Wopanga aliyense amadziwa izi: kuchita bwino kumayamba kale kutsanulira. Zimayamba ndi ufulu zopangira zitsulo-osati zopangira zokha, koma zokanira zolondola, zomangira, zokutira nkhungu, mchenga wapakati, ndi zida zotsekera zomwe zimayendetsa kutentha, kutha kwa pamwamba, ndi kubwerezabwereza. Tawonapo zojambula zambiri zamtengo wapatali zikulephera-osati kuchokera ku mapangidwe olakwika kapena kusankha kwa aloyi, koma kuchokera kumagulu osagwirizana ndi mchenga, chemistry yachikale ya binder, kapena zokutira zomwe zimagwedezeka chifukwa cha kutentha. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Kumene timapanga nyumba za AMS 5387 cobalt alloy pump ndi T800-based nozzles za hydraulic systems zikugwira ntchito pa bar 420, kudalirika sikufuna. Zimapangidwa muzosankha zilizonse zoperekera.
Zida Zotsutsa Zomwe Zimapirira Kupsinjika Kwambiri Kwapadziko Lonse
Osati onse otsutsa amachita chimodzimodzi pansi pa njinga yamoto yobwerezabwereza. Mchenga wa silika umagwira ntchito pazitsulo za alloy low-alloy-koma zimalephera kwambiri ndi alloys a cobalt-nickel pamwamba pa 1,400 ° C. M'malo athu ogwirizana ndi ISO, timagwiritsa ntchito zophatikizika za alumina ndi zircon popanga zipolopolo zopangira ndalama zopangira magawo a AMS 5387. Chifukwa chiyani? Chifukwa chiwongolero cha zircon cha kukula kwamafuta chikufanana ndi ma aloyi a cobalt pafupi-kuchepetsa kusweka kwa zipolopolo panthawi ya dewaxing ndi preheat. Zovala zokhala ndi silika zimaphulika potentha kwambiri; opangidwa ndi zircon amakhala ndi kukhulupirika. Timayesa batchi iliyonse kuti tigawane kukula kwa tinthu (D50 ≤ 45 µm) ndi chinyezi (<0.3%) musanayambe kuviika chipolopolo. Makasitomala m'modzi adasinthiratu ogulitsa osasintha mitengo ya preheat - ndipo adawona 22% ikuphulika m'magulu oyamba. Kukonza sikunali zida zatsopano. Zinali zofananira machitidwe otsutsana ndi mbiri yawo yeniyeni ya ng'anjo.
Binders ndi Core Systems Zomwe Zimapereka Kukhazikika kwa Dimensional
Kusintha kwapakati kumawononga nyumba za silinda pampu ya piston. Kupatuka kwa 0.15 mm m'malo obowola mkati kumatanthauza kulephera kugwira ntchito. Timagwiritsa ntchito zomangira za phenolic urethane zomangira zoziziritsa kukhosi—osati mtengo wake, koma posungira mphamvu zobiriwira pa 35–40% chinyezi chapafupi komanso magwiridwe antchito osasinthasintha. Zomwe timapeza zikuwonetsa ma cores opangidwa ndi zomangira izi amakhala ndi ± 0.08 mm kulolerana pamayendedwe 500 opanga mayunitsi. Masitolo ena amadalirabe machitidwe a furan osaphika, koma zotsalira za sulfure zimalimbikitsa micro-porosity muzitsulo zosapanga dzimbiri. Pazitsulo zopangira chitsulo zomwe zimafuna mphamvu ya Class 30+, timatchula zomangira za alkaline phenolic-low-sulfur, high-ash-mphamvu, komanso zogwirizana ndi mizere yowombera yokha. Chinsinsi si mtundu wa binder wokha. Umu ndi momwe ma kinetics amachiritsira amalumikizana ndi kutentha kwa bokosi lanu, chinyezi chozungulira, komanso nthawi yopangira.
Zopaka Mold ndi Zotulutsa Zomwe Zimawongolera Kukhulupirika
Kuponyedwa pamwamba sikokongola - kumagwira ntchito. Pampu maziko amafunikira Ra ≤ 3.2 µm kuti asindikize gasket; ma roller a winch center shaft amafunikira malo opanda chilema kuti apewe kuvala msanga. Timayika zokutira za zircon zamadzimadzi za ethyl silicate zomangika ndi mpweya wopanda mpweya—kukhuthala kwa mamachulukidwe koyendetsedwa ndi mphindi 22-24 (Ford Cup #4), zolimba zomwe zili pa 68-70%. Woonda kwambiri? Kulephera kukokoloka kwa nthaka. Zokhuthala kwambiri? Kutopa ndi kutulutsa kaboni. Timatsimikizira makulidwe a zokutira ndi ma eddy-current gauge — chandamale: 0.25–0.35 mm youma filimu. Pazinthu zopanda muyezo wa T800 aloyi, timawonjezera 3-5% colloidal graphite kuti tiwongolere chitsulo m'zigawo zopyapyala. Palibe zokutira "zapadziko lonse" zomwe zimapereka izi. Ndiko kupanga, njira yogwiritsira ntchito, ndi nthawi yowuma-kuyesedwa pamodzi, osati kudzipatula.
Zopereka Zokonzekera Kutsata kwa Mishoni-Zovuta Kwambiri
Vavu yokakamiza ikalephera m'malo ochulukirapo, kutsata silemba - ndikuchepetsa udindo. Ngoma iliyonse yamchenga wa zircon, paketi iliyonse yomangira, gulu lililonse la zokutira lomwe limalowa m'malo athu limanyamula ziwerengero zambiri, satifiketi yowunikira, ndi lipoti la mayeso azitsulo. Timasunga kutsatiridwa kwathunthu kuchokera pa risiti ya zinthu zopangira mpaka pakuwunika komaliza kwa CMM-kufikira kuchuluka kwa kutentha kwa ingot ya aloyi ya cobalt yomwe imagwiritsidwa ntchito mu magawo a AMS 5387. Izi zikutanthauza kuti ngati kasitomala anena za porosity pa 12 koloko pa nyumba ya silinda, titha kusiyanitsa mchenga weniweniwo, binder batch, ndi dip cycle - ndikubweretsanso mkhalidwewo muyeso. Ogulitsa ambiri amatumiza zinthu zovomerezeka. Ochepa amaphatikizira chiphaso ku kayendetsedwe ka nthawi yeniyeni. Timatero-chifukwa kulondola kwazithunzi ndi kukhulupirika kwapangidwe sizimatheka mu ng'anjo yosungunuka yokha. Iwo atsekeredwa mu gawo loperekera.
Zotsatira zodalirika zoyambira sizimachokera ku gawo limodzi langwiro. Iwo amatuluka mwadala, woyesedwa kusankha aliyense zopangira zitsulo Zomwe mumayendera - kuchokera pakukula kwambewu mpaka kukhazikika kwa alumali mpaka kukhuthala kwa ma viscosity. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Sitichitira zinthu zotayira ngati zongogula, koma ngati zothandizira mwatsatanetsatane. Malingaliro amenewo amalekanitsa magwiridwe antchito obwerezabwereza ndi kukonzanso kokwera mtengo. Pamene ma hybrid casting-machining process akuchulukirachulukira -makamaka pamapampu amtundu wa alloy ndi ma valve system - m'mphepete mwa kusintha kwa chain-chain kumachepa. Sankhani ogulitsa omwe amayesa, kutsimikizira, ndi kulemba - osati kungopereka.
