Noma na zamani ba ya gudana bisa fahimta kaɗai. Yana gudana akan madaidaicin abubuwan da aka gyara - bawul ɗin matsa lamba waɗanda ke riƙe mashaya 350 ba tare da yayyo ba, gidajen famfo na piston da aka yi amfani da su zuwa juriya na ± 0.01 mm, winch center shaft rollers da aka ƙirƙira don tsayayya da ƙasa mai ƙyalli na tsawon sa'o'i 12,000+ na aiki. Lokacin da waɗannan sassa suka gaza, ba a auna lokacin raguwa a cikin mintuna - ana auna shi a cikin kadada da suka ɓace, an rasa tagogi na girbi, da man fetur da aka rasa.
Wannan shine dalilin da ya sa ainihin ƙulli a cikin ayyukan masana'antar noma ba ƙarfin filin ba ko daidaiton GPS. Yana da ɓoyayyen sarkar samar da kayan aiki a bayan sassa masu mahimmancin ƙarfe na manufa: waɗanda aka binne a cikin manifolds na na'ura mai ba da hanya tsakanin hanyoyin sadarwa, waɗanda aka ɗora a ƙarƙashin axles na tarakta, ko kuma an rufe su a cikin famfunan ban ruwa mai ƙarfi. Mun ga gonaki a cikin Saskatchewan suna jinkirin dasa shuki saboda bututun cobalt-alloy guda ɗaya ya fashe a ƙarƙashin hawan keke. Mun kalli yadda kungiyoyin hadin gwiwar shinkafa na kudu maso gabashin Asiya ke kwashe gaba dayan nau'o'in atisayen iri bayan da tushe mara kyau na famfo ya lalace yayin maganin zafi. Waɗannan ba “cirewar inji ba ne.” Rashin daidaiton kayan abu-da-tsari ne-ba a warware su ta manyan taraktoci ba, amma ta hanyar kera kayan da suka fi wayo.
Me yasa Sassan Ƙarfe Madaidaicin Ƙarfe ke Ƙayyadaddun Ingantaccen Aikin Noma
Kayan aikin gona suna aiki da iyaka: farawa a ƙarƙashin ƙasa a Alberta, zafin yanayi na 50 ° C a Andalusia, ci gaba da girgiza akan filayen yumbu mai nauyi a Brazil. Daidaitaccen simintin gyare-gyare. Karfe na kashe-kashe. Sassan CNC na gabaɗaya ba su da daidaitattun microstructural da ake buƙata don juriyar gajiya akan zagayowar 10,000.
Abubuwan da suka dace na ainihin duniya sun zo daga buƙatu huɗu masu haɗaka:
- Kwanciyar kwanciyar hankali-Babu warping bayan maganin zafi ko ɗaukar nauyin hydraulic na dogon lokaci
- Daidaitaccen ƙarfe na ƙarfe— sake maimaita tsari-zuwa-tsari a cikin taurin, tsarin hatsi, da juriya na lalata
- Ma'auni na aiki- Hanyoyi masu gudana na ciki tare da rashin ƙarfi Ra ≤ 0.8 µm, rufe saman saman a cikin 0.005 mm
- Ikon aiwatar da ganowa-cikakkun takaddun shaida, rahotannin CMM a kowace kuri'a, ingantaccen GD&T kafin yanke farko
Yawancin masana'antun noma suna fitar da simintin gyare-gyare ko injina-amma ba kasafai duka biyu ba. Wannan gibin yana haifar da kurakurai na hannun hannu: simintin yashi yana raguwa ba tare da tabbas ba yayin sanyaya, sannan shagon CNC ya biya diyya tare da cire haja wanda ke raunana sassan bango mai mahimmanci. Sakamakon? Bangaren da ya wuce rajistan juzu'i amma ya gaza fashe gwaji a matsa lamba 80%.
Haɗin Fa'idar: Yin Simintin Ɗaukakawa, Machining, Ƙarƙashin Rufi ɗaya
Wasu suna jayayya cewa ƙwarewa ta doke haɗin kai tsaye. Amma lokacin da piston famfo silinda gidaje dole ne saduwa da AMS 5387 cobalt alloy tabarau * da kuma tsira 200 miliyan matsa lamba hawan keke, rarrabuwa aiki tsakanin uku dillalai da yawa hadarin-ba yadda ya dace.
Mun bin diddigin gine-ginen samfuri guda 47 don Tier-1 OEMs na aikin gona. Ayyukan da aka gudanar daga ƙarshen-zuwa-ƙarshe-daga saka hannun jari ta hanyar CNC-axis masu yawa, magani mai zafi, da wucewa-sun ba da 63% ƙarancin odar canjin injiniya kuma sun kai hari na farko na 91% na lokaci. Wadanda aka sarrafa a cikin keɓantattun wuraren samar da injuna da shagunan injuna sun sami matsakaicin madaukai 3.2 na sake yin aiki kowane ɓangare na iyali.
Wannan ba game da dacewa ba ne. Yana da game da sarrafa ilimin lissafi:
- Simintin simintin gyare-gyare kai tsaye suna sanar da gyare-gyaren injina-babu zato akan ainihin canjin canji ko raguwa.
- An tsara zagayowar maganin zafi don dacewa da jerin mashin ɗin na gaba, yana hana haɓakar damuwa.
- Ƙarshen saman (misali, electropolishing don jikin famfo mai bakin ruwa) yana farawa * kafin * dubawa na ƙarshe - don haka lahani na gani ba sa rufe lahani na ƙasa
Abokin ciniki ɗaya-mai sana'a na Turai na masu sarrafa kansa-yanke mitar maye gurbin bawul ɗin hydraulic da kashi 40 bayan an canza shi daga simintin ƙarfe na ƙarfe zuwa gidaje na tushen cobalt na T800 wanda aka haɗa tare da haɗaɗɗen kawar da damuwa. Littattafan kula da su sun nuna gazawar hatimin sifili sama da watanni 18 - da abubuwan da suka faru 7 a cikin shekarar da ta gabata.
Abin da Yake Mahimmanci a Zaɓin Kayan Abu (Bayan "Bakin Karfe")
"Bakin Karfe" yana nufin komai ba tare da mahallin ba. AISI 304 yana lalata da sauri a cikin maganin ammonium nitrate. ASTM A536 ductile iron yana rasa ƙarfin juriya sama da 120°C. Duk da haka ƙungiyoyin sayayya har yanzu suna ƙayyadad da “bakin” akan RFQs-kuma suna biyan kuɗin sake yin aiki lokacin da sassan ke rami a cikin tankunan taki.
Ayyukan zahirin duniya sun dogara ne akan yanke shawara guda uku:
- Makin allo yayi daidai da yanayin gazawa: Cobalt-nickel gami (kamar AMS 5387) don lalata-lalata a cikin famfunan slurry; ferritic bakin karfe don juriya na chloride a tsarin ban ruwa na bakin teku
- Hanyar sarrafawa mai daidaitawa tare da lissafi: Simintin saka hannun jari don jikin bawul mai bangon bakin ciki tare da kwalayen ciki; yashi simintin gyare-gyare don ƙaƙƙarfan tushen famfo mai buƙatar damping vibration
- Tabbatar da bayan tsari an ɗaure da aiki: Gwajin gishiri-bayan * wucewa - ba kawai a baya ba; Binciken ultrasonic * akan kowane yawa *, ba kawai labarin farko ba
Kwanan nan mun taimaka wa wani mai kera kayan sarrafa hatsi na Amurka ya maye gurbin mashin tuƙi na ƙarfe-karfe da ya gaza. Tsohuwar mai sayar da su ta nakalto "ƙarfe mai ƙarfi." Binciken mu na ƙarfe ya nuna ainihin gazawar su shine ɓarnawar hydrogen daga sakawa mara kyau. Mun canza zuwa 4140 na al'ada tare da sarrafa gasa hydrogen-da kuma tsawaita rayuwar sabis daga watanni 4 zuwa watanni 22 a ci gaba da aiki.
Zaɓan Abokin Hulɗa: Duba Takaddun Shaida na Baya, Kalli Gudun Aiki
ISO 9001 shine tushen tebur. Abin da ke raba amintattun masu samar da kayayyaki shine yadda suke magance rashin fahimta. Shin suna tambayar *me yasa* haƙuri ya takura-ko kawai faɗin shi? Za su iya tuta rikicin GD&T kafin yanke karfe? Shin suna riƙe lambobin zafin ɗanyen kayan don kowane kayan da aka aika?
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., kowane oda da ke da alaƙa da aikin noma yana haifar da bita na ƙima na wajibi. Muna yin taswirar kowane fasalin zuwa nauyin aikin sa: juriya na matsayi na 0.02 mm akan rami mai hawa ba sabani ba - yana hana lalacewa ta hanyar lalacewa a cikin layin 200-hp PTO. Idan zanen bai bayyana hakan ba, muna tambaya. Idan ƙayyadaddun ƙayyadaddun ya ci karo da yuwuwar yin simintin, muna ba da shawarar wasu hanyoyin da bayanan FEA ke goyan bayan-ba ra'ayi ba.
Wannan horo yana nunawa a cikin bayarwa: 98.3% akan kammalawa akan lokaci don tafiyar da matsakaicin girma (50-500 inji mai kwakwalwa / kuri'a), tare da cikakken bincike har zuwa batch na tanderun da tsarin shirin CMM. Babu "kusan a shirye." Babu "batun lokacin jagoran kayan abu." An rubuta kawai, maimaituwar kisa.
Ba a gina ingantaccen aikin noma a cikin filin. An ƙirƙira shi a cikin wuraren da aka samo asali, an niƙa a cikin ƙwayoyin CNC, kuma an inganta shi a cikin dakunan gwaje-gwaje na awo-tsawon kafin iri na farko ya faɗo ƙasa. Masana'antar injunan noma wacce ta mallaki wannan daidaitaccen madaidaicin ba wai kawai jigilar kayayyaki ba. Yana jigilar tsinkaya.
