Lokacin da famfon na'ura mai aiki da karfin ruwa ya gaza a ƙarƙashin matsa lamba 350-bar, mai laifi ba shi da wuya hatimi-ko motar. Yana da sau da yawa da musamman gami bushing: diamita 28-mm, 42-mm-tsawon hannun hannu ƙirƙira daga AMS 5387 cobalt gami, zafi-mayyace zuwa HRC 42-46, tare da surface roughness sarrafa zuwa Ra 0.4 µm. Wannan bangare bai "daidai ba" kawai. Yana tsira daga hawan keken zafi, yana tsayayya da galling da taurin karfe, kuma yana kula da hankali bayan awanni 12,000 na ci gaba da aiki. Kadan daga cikin masu samar da kayayyaki za su iya isar da shi - a kai a kai, akan lokaci, tare da cikakken ganowa. Shi ya sa injiniyoyi a Milwaukee, Stuttgart, da Singapore suka juya zuwa a musamman gami bushing factory tushen ba a cikin iƙirarin tallace-tallace ba-amma a cikin horon bene na kanti.
Me yasa Cobalt-Nickel Bushings ya kasa - kuma me yasa suka ci nasara
Mun ga nau'ikan gazawa guda uku masu maimaitawa a cikin manyan majalissar famfo mai matsa lamba: micro-cracking a kafada (daga saura damuwa), haɓakar lalacewa a cikin mahallin fim ɗin mai (saboda rashin daidaituwa taurin gradients), da ɗimbin girma yayin jiƙan thermal (wanda ya haifar da rashin daidaituwa CTE tsakanin bushing da gidaje). Kowannensu yana nuna tushen tushe guda ɗaya: rarrabuwar masana'anta. Lokacin da simintin gyare-gyare, injina, da magani na zafi ke faruwa a tsakanin dillalai daban-daban, ci gaban ƙarfe ya rushe. Ana katse kwararar hatsi. Mutuncin saman yana wahala. Haƙuri ya taru ba tare da annabta ba.
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Tsarin yana tsayawa a ƙarƙashin rufin daya. Kayan aikinsu na yarda da ISO yana ɗaukar simintin saka hannun jari na tushen cobalt gami na T800, sannan yana yin jujjuyawar CNC mai axis biyar da niƙa na ciki - duk ba tare da cire ɓangaren daga daidaitawar sa ba. Wannan yana kawar da kurakuran sake gyarawa kuma yana adana tarihin zafi. Wani rukunin bushing na AMS 5387 na kwanan nan don famfon laka na bakin teku ya nuna ± 0.008 mm zagaye sama da tsayin mm 40-wanda aka auna akan Zeiss CONTURA G2 CMM, tare da takaddun kayan abu wanda za'a iya ganowa zuwa niƙa mai yawa #COB-22894A.
Ƙarfin Ƙarfi guda huɗu waɗanda ba za ku iya yin sulhu ba
A gaskiya musamman gami bushing factory dole ne a ba da fiye da yarda da juzu'i. Dole ne ya ba da garantin aikin aiki-kafin jirgin ruwa na farko. Wannan yana buƙatar haɗe-haɗe iyakoki guda huɗu:
- Kula da kayan abu: Ba wai kawai samo AMS 5387 ko T800 ba - amma haɗin gwiwar haɓaka yanayin zafi tare da masu samar da gami don daidaita tarwatsawar carbide.
- Tsarin haɗakarwa: Ma'aunin injin da aka kunna zuwa ƙananan simintin simintin gyare-gyare-ba yawan ciyarwa da sauri ba
- Zurfin dubawa: CMM yana dubawa a maki 300+ a kowane bangare, da gwajin ultrasonic don porosity na ƙasa, da tabbacin gani a ƙarƙashin 10 × haɓakawa.
- Fassarar GD&TInjiniyoyin da ke fassara kiran ASME Y14.5 kamar "datum B wanda aka samo daga simintin simintin gyare-gyare" ba tare da neman sake fasalin ba.
Wani abokin ciniki ya sake fasalin gidan famfo na piston bayan gazawar samfura uku a wani wuri. Tawagar QINGDAO QIANGSENYUAN ta yi nuni da cewa ƙayyadaddun jurewar matsayi na 0.01 mm ga bushing ba zai yuwu ba * ba tare da canza kusurwar simintin gyaran kafa ba*. Sun ba da shawarar juriya na mm 0.025 tare da kira mai sarrafawa mai sarrafawa - kuma sun ba da amincewar labarin farko a cikin kwanaki 11.
Abin da “Custom” yake nufi da gaske—Bayan Zane
"Ba daidai ba" ba shine kama-duk don sasantawar injiniya ba. Ƙaddamarwa ce ga manufar aiki. Lokacin da abokin ciniki na kudu maso gabashin Asiya ya buƙaci bushings don winch center shaft rollers da ke aiki a cikin wuraren fesa gishiri, ba kawai sun ƙayyade bakin karfe ba. Sun bukaci juriya ga lalatawar ƙirƙira a 85 ° C, ƙarfin ɗaukar nauyi na 185 kN, da ƙimar juzu'i a ƙarƙashin 0.08 akan nitrided 42CrMo4. QINGDAO QIANGSENYUAN ya amsa da simintin simintin gyare-gyare: Layer na waje na ASTM A995 Gr. 4A (super duplex bakin karfe), layin ciki na cobalt-nickel gami, hade ta hanyar haɗin HIP. Sakamakon ya wuce gwajin hazo na gishiri na sa'o'i 2,000 tare da ramin sifili-yayin da yake yanke nauyi da kashi 17 cikin ɗari da ƙaƙƙarfan cobalt.
Wannan ba prototyping bane. Matsala ce ta samarwa-inda kowane yanke shawara ya danganta baya ga halayen filin: damƙar girgiza, rashin daidaituwar haɓakar zafi, dacewa mai mai, hasashen rayuwar sabis.
Ƙofa ta Gaba: Tsari Tsari, Ba Sassa kawai ba
Makomar manyan manyan ayyuka ta ta'allaka ne inda daidaitaccen simintin simintin ya haɗu da amincin mashin ɗin. QINGDAO QIANGSENYUAN yanzu yana cancantar matakai na matasan: simintin saka hannun jari na kusa-nau'i-nau'i tare da hadedde tashoshi masu sanyaya, an gama ta hanyar injin lantarki zuwa Ra 0.1 µm saman gama-ba alamun kayan aiki, babu recast Layer. Waɗannan ba abubuwan jin daɗi ba ne. Suna cikin ingantattun bawuloli masu sarrafa ruwa na gaba na gaba da ke buƙatar zubewar sifili a mashaya 1,200.
Idan aikace-aikacen ku yana buƙatar bushings waɗanda ba kawai sun dace da ƙayyadaddun bayanai ba-amma tsawaita rayuwar tsarin, rage tazarar kulawa, da tsira fiye da rayuwar ƙira… duba kasida da takaddun shaida. Nemo filin shago inda masanan ƙarfe da injiniyoyi ke raba jadawalin motsi iri ɗaya. A nan ne za ku sami a musamman gami bushing factory darajar tantancewa.
