Lokacin da injiniyoyi suka ƙididdige ɗaukar hoto na Stellite, ba kawai zaɓin abu bane—suna ƙaddamar da rashin haƙuri don lalacewa, lalata, ko juzu'i mai girma a ƙarƙashin matsananciyar matsa lamba. Wannan shawarar ta sauka a kan bene na masana'anta: ba kowane kantin sayar da kaya ko kantin CNC ba zai iya dogaro da samar da abubuwan Stelite waɗanda suka dace da AMS 5387, ASTM F1537, ko buƙatun ISO 4967-musamman lokacin da geometries ɗin ke buƙatar kulawar GD&T mai ƙarfi, saman yana ƙarewa ƙarƙashin Ra 0.4 µm, da daidaituwar ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun yanayin zafi. Mun ga ayyuka da yawa sun tsaya tsayin daka a ingantaccen samfur saboda Kamfanin sarrafa Stellat rashin hadedde damar yin simintin gyare-gyare-ko mafi muni, maye gurbin cobalt gami da maki ba tare da gano ƙarfe ba.
Me yasa Bearings Steellite ke kasa Kafin Shigarwa (Kuma Yadda ake Gujewa Shi)
Stelite ba a sarrafa shi kamar bakin karfe. Taurinsa (45-65 HRC as-siminti, har zuwa 70 HRC bayan taurin), cibiyar sadarwar carbide mai lalata, da ƙarancin wutar lantarki yana buƙatar kayan aiki na musamman, ƙayyadaddun ƙayyadaddun ƙayyadaddun bayanai, da sigogin ciyarwa/sauri waɗanda aka daidaita kowane kuri'a-ba kowane katalogi ba. A cikin shirin sake gina famfun ruwa guda ɗaya, Tier-1 OEM ya ƙi 37% na masu ɗaukar zobe na Stellite mai shigowa. Tushen dalili? Mai siyarwar ya yi amfani da haja na cobalt-nickel maimakon ƙwararrun kayan AMS 5387-kuma ya tsallake sassaucin damuwa bayan machining. Sakamako: Micro-cracking karkashin 3,000 psi cyclic loading a cikin sa'o'i 48 na gwajin benci.
Nasarar duniya ta gaske tana farawa da wuri-a cikin samo kayan aiki da taswira. A cancanta Kamfanin sarrafa Stellat dole ne ta tabbatar da ɗanyen takaddun shaida (MTRs) kafin yin simintin gyare-gyare, sarrafa yanayin tanderu yayin simintin saka hannun jari don hana ɗaukar carbon, da kuma tabbatar da yanayin yanayin zafi tare da ƙayyadaddun bayanan yanayin yanayin lokaci. Babu gajerun hanyoyi. Babu "mai kyau isa" gami.
Ƙarfi guda huɗu waɗanda ba za a iya sasantawa ba a cikin Masana'antar Haɓakawa ta Gaskiya ta Stellite
Mun gwada masu ba da kayayyaki a kan waɗannan ma'auni guda huɗu na aiki-saboda kai tsaye suna ƙayyade ko ɓangarenku ya tsira daga hidimar fage ko ya gaza yayin FAT:
- Abun Ganewa Zuwa Tsarin Narke: Kowane ɓangaren Stelite dole ne ya ɗauki cikakkun takaddun tsare-tsare-daga takardar shedar niƙa zuwa rahoton dubawa na ƙarshe-tare da lambar zafi mai hatimi ko alamar Laser akan sashin kanta.
- Haɗin Simintin-Machining: Simintin simintin simintin gyare-gyare na Stelite yana da karye. Cire shi ta hanyar inji ba tare da haifar da lalacewar ƙasa ba yana buƙatar daidaitaccen sarrafawa mai zurfin yankewa da isar da saƙon da aka inganta don abubuwan haɗin gwiwar cobalt-ba shirye-shiryen aluminum ko ƙarfe ba.
- Binciken GD&T-Treven, Ba kawai Takaddun Bincike baHaƙuri na diamita na 0.02 mm ba yana nufin komai ba idan matsayi, gudu, ko haƙurin bayanan martaba ba a tabbatar da su ta amfani da CMM masu ƙima tare da takaddun shaida na ISO 10360-2 - kuma suna da alaƙa da mu'amalar taro na aiki.
- Tabbatar da Mutuncin Surface: Bayan Ra, muna buƙatar bincike na SEM na giciye don ƙananan microcracks da ke kusa da taswirar damuwa ta hanyar XRD don sassa masu juyayi masu mahimmanci kamar winch center shaft rollers ko famfo silinda gidaje.
Ba tare da duka huɗun ba, kuna siyan sassa-ba tabbacin aiki ba.
Inda Daidaito Ya Hadu da Gaskiyar Aikace-aikacen
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Mun gina Stellite sassa inda gazawar ba wani zaɓi: AMS 5387 cobalt alloy 6 famfo gidaje rated for 5,000 psi ci gaba da aiki; Tushen nozzles na T800 yana sarrafa slurry a 120 ° C; wadanda ba daidaitattun ma'auni na tsakiya ba don injinan injiniyoyin ketare da ke aiki a cikin mahalli mai cike da gishiri, mai tsananin girgiza. Waɗannan ba abubuwan da aka kashe ba ne. Kowane ƙira yana jujjuya bitar masana'anta - ba don farashi kawai ba, amma don haɗarin gurɓataccen zafi yayin injin, sassan rarrabuwa na carbide a cikin sassan simintin gyare-gyare, da mafi kyawun tsarin gamawa don adana damuwa na saman.
Ba mu “yin sassan Stella.” Mu injiniya muna sanye da juriya cikin lissafi, abu, da tsari - sannan mu tabbatar da shi tare da bayanai: rahotannin gwajin tensile na ASTM E8, taswirorin tauri a saman fage masu mahimmanci, da gwajin nauyi na aiki kowane keɓaɓɓen kewayon sabis na abokin ciniki. Haka a Kamfanin sarrafa Stellat yana samun maimaita umarni-ba da'awar talla ba.
Zaɓan Abokin Hulɗarku: Duba Ƙarshen Ƙa'idar Alloy
Yi waɗannan tambayoyi guda uku kafin kammala mai kaya:
- Za su iya samar da MTRs don * ainihin * zafi da aka yi amfani da su a cikin odar ku-ba takardar alloy na gama-gari ba?
- Shin suna tabbatar da taurin cikin aiki *bayan* injin ɗin ƙarshe da *kafin* gamawa — kuma suna riƙe waɗannan bayanan?
- Shin za su raba tsarin binciken su na GD&T-ciki har da tsarin datum, jerin ma'auni, da matsayin daidaita kayan aiki-kafin yanke ƙarfe?
Idan amsar ita ce "a'a," "ba daidai ba," ko "za mu tabbatar daga baya," tafiya. Stellite ba game da kayan abu kadai ba ne - game da aiwatar da aiwatarwa ne daga narkewa zuwa awoyi. Dama Kamfanin sarrafa Stellat ba ya isar da sassa kawai. Yana ba da tsinkaya.
