Lokacin da injiniyoyi suka bayyana masana'anta simintin ruwa gilashin ayyuka don manyan sassa na ƙarfe na ƙarfe, ba kawai neman tushen tushe ba ne - suna neman sarrafa girma, daidaiton microstructural, da amincin ƙarfe a ƙarƙashin matsin lamba. Mun ga ayyuka da yawa sun jinkirta ta hanyar tsammanin da ba su dace ba: wani ɓangaren da ya wuce gwaje-gwajen juzu'i amma ya gaza hawan keken zafi, ko gidaje na cobalt wanda ya dace da juriya na bugawa duk da haka yana fashe yayin gwajin injin. Tushen dalili? Ƙarfin rarrabuwar kawuna—kasuwancin ba tare da sarrafa injina ba, shagunan inji ba tare da zurfafa tunani ba, ko masu samar da kayayyaki waɗanda ke ɗaukar AMS 5387 ko T800 a matsayin haja na gama-gari maimakon kayan aiki masu mahimmanci.
Dalilin da ya sa zubar da gilashin ruwa yana da mahimmanci - kuma me yasa ba a cika yin shi daidai ba
Gilashin ruwa (sodium silicate) simintin saka hannun jari yana ba da juriya mai ƙarfi fiye da simintin yashi da ƙarancin kayan aiki fiye da harsashi yumbu don matsakaici-kasuwa, abubuwan masana'antu masu matsakaicin girma. Amma nasara ta ta'allaka ne akan abubuwan da ba za'a iya sasantawa guda uku ba: daidaitaccen kulawar rheology na slurry, sarrafa dewaxing don guje wa fashewar mold, da bayanin martabar tanderun da aka daidaita zuwa kowane madaidaicin haɓakar zafin jiki na gami. A cikin shagon mu, muna daidaita ma'auni-zuwa foda a ainihin lokacin bisa la'akari da zafi na yanayi-ba daga madaidaicin takardar SOP ba. Don allunan cobalt-nickel kamar AMS 5387, ko da karkacewar 2°C a lokacin preheat na iya haifar da ƙananan raguwa a cikin gidajen famfo na bakin ciki. Shi ya sa muke sa ido kan kowane narke tare da tsararru biyu-thermocouple da kuma shigar da tarihin zafi a kowane yanki-ba kowane tsari ba.
Haɗin kai tsaye ba kalma ba ce - hanya ce kaɗai don riƙe GD&T
Jikin bawul ɗin da aka jefa a cikin gilashin ruwa na iya ɗaukar juriya na madaidaiciya ± 0.1 mm - amma idan aikin CNC wanda ke kera fuskarsa ta rufe ba ta da martani kai tsaye daga tsarin simintin, za ku kori gudu a cikin saiti biyar. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., simintin gyaran gyare-gyare, maganin zafi, da injinan axis da yawa suna raba ɗakin binciken awo guda ɗaya. CMM ɗinmu yana tabbatar da lissafin simintin simintin simintin gyare-gyare kafin ingantacciyar mashin ɗin; na'urorin gani na gani suna tabbatar da ingancin saman bayan wucewa ta ƙarshe; kuma kowane gidan piston famfo na silinda yana fuskantar gwajin aikin hydrostatic a 1.5 × ƙididdige matsi na aiki-ba kawai duba leka ba. Wannan yana kawar da "akwatin baƙar fata" tsakanin sassan. Lokacin da abokin ciniki ya aiko mana da GD&T-nauyin zane don injin injin abin nadi na tsakiyar shaft, mun ba da alamar kiran datum guda biyu waɗanda suka ci karo da babban jagorar ja-kafin fara kayan aiki. Wannan ya ceci makonni uku da $18,000 a sake yin aiki.
Ilimin kayan aiki yana raba daidaitaccen simintin gyare-gyare daga samar da kayayyaki
Cobalt alloy nozzles ba sa kasawa saboda ƙarancin mashin ɗin. Suna kasawa saboda rashin daidaituwar rabon carbide a cikin ɓangaren giciye. Mun samo T800 da AMS 5387 ingots tare da cikakkun takaddun niƙa-ciki har da nazarin yanayi, rahotannin girman hatsi, da lanƙwasa ta ASTM E8. Ana keɓance kowane zafi, ana yi masa alama tare da katunan gano masu QR, kuma ana adana su a cikin rijiyoyin sarrafa yanayi. Idan tsari ya nuna girman abun ciki na sulfur sama da 0.015%, an keɓe shi-ba a rage shi ba. Me yasa? Domin sulfur embrittles cobalt alloys tare da hatsi iyakoki, accelerating gajiya fashe farawa a pulsating famfo muhallin. Ba kawai muna saduwa da ƙayyadaddun bayanai ba—muna taswirar halayen kayan aiki akan jihohin damuwa na aikace-aikacen. Wannan shine yadda muke isar da matosai waɗanda ke tsira da hawan keke sama da 12,000 a cikin ma'aunin mai da iskar gas.
Isar da ainihin-duniya na nufin jerin lokutan da za a iya tsinkaya—ba alkawuran fata ba
"Lokacin jagora" yana nufin kome ba tare da mahallin ba. Maganar mako 12 don tushen famfo bakin karfe 50 yana ɗaukar wadatar albarkatun ƙasa, tsara tsarin wutar lantarki, da zagayowar amincewar labarin farko-ba kawai kwanakin kalanda ba. Muna gina jadawalai a kusa da ƙarfin kwalbar: layin gilashin ruwan mu yana gudanar da ƙira shida a mako, max. Ba ma yin yawa. Madadin haka, muna daidaita samfuri tare da aiwatar da samarwa-don haka raka'o'in ku na farko 5 sun inganta duka tsari da sharuɗɗan dubawa kafin haɓakar girma. Abokan ciniki a Arewacin Amurka da Turai suna ba da rahoton matsakaicin isarwa akan lokaci a 98.3% a cikin watanni 18 da suka gabata - ba saboda muna gaggawa ba, amma saboda muna shirin komawa baya daga gwajin aiki, ba gaba daga shigarwar oda ba. Kuma lokacin da canjin zane ya shiga tsakiyar gudu? Mun sake kunna FMEA-ba kawai sabunta BOM ba.
Idan kana bukatar a masana'anta simintin ruwa gilashin wanda ke kula da bawul ɗin matsa lamba ko gidan famfo piston a matsayin tsarin-ba wani ɓangare ba - kuna buƙatar ingantaccen iko akan halayen gami, ci gaba da sarkar juzu'i, da tabbatarwa ta zahiri ta duniya. Wannan yana farawa da tambayar ba "Za ku iya jefa shi ba?" amma "Ta yaya kuke ba da garantin yin aiki?"
