Lokacin da injiniyoyi suka bayyana a bakin karfe bawul factory, Ba wai kawai yin oda ba ne - suna zaɓar abokin tarayya wanda zai iya riƙe ± 0.01 mm tolerances a karkashin 350 bar matsa lamba, tsayayya da chloride-induced pitting a cikin tekun famfo manifolds, da kuma isar da maimaita microstructure mutunci a fadin 500-raka'a batches. Wannan shine gaskiyar aiki-ba harshen talla ba.
Mun ga ayyuka da yawa sun tsaya tsayin daka a matakin samfuri saboda zaɓaɓɓen mai siyar ya kula da bawul ɗin bakin karfe a matsayin simintin gyare-gyare maimakon mahimmin abubuwan sarrafa kwararar manufa. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., kowane bawul yana farawa da karfe niyya: abu sa (CF8M, F51 duplex, ko al'ada ASTM A995 Gr. 4A), zafi magani sake zagayowar (maganin anneal + quench profile tabbatar da ta ASTM A995), da kuma surface gama (Ramµs). Babu zato. Babu gajerun hanyoyin "misali".
Hukunce-hukuncen fasaha guda uku sun raba abin dogaron masana'antar OEM daga samar da kayayyaki - kuma duka ukun suna faruwa kafin fara injin.
- Neman kayan abu ba na zaɓi ba - an haɗa shi. Kowane yanki na zafi yana ɗaukar cikakkun rahotannin gwajin niƙa (MTRs) waɗanda aka tabbatar da su zuwa EN 10204 3.1, tare da ingantaccen tsarin sinadarai da ASTM A351 da kaddarorin injin da aka tabbatar ta hanyar gwajin juzu'i akan takaddun takaddun samarwa - ba kawai sandunan samfuri ba.
- Hanyar simintin gyare-gyare tana tafiyar da aikin aiki. Yin simintin yashi yana ɗaukar manyan bawul ɗin jiki har zuwa kilogiram 120 tare da ƙimar ƙarfi mai sarrafawa; Simintin saka hannun jari yana isar da jikin bangon bakin ciki, madaidaicin madaidaicin gawawwakin bawul ɗin sarrafa matakin matukin jirgi inda bambancin kaurin bango dole ne ya tsaya tsakanin ± 0.3 mm. Ba mu tilastawa-daidaita tsari ɗaya ga duk geometries ba.
- GD&T ba a sake duba shi ba bayan an faɗi - an warware shi yayin ingantaccen aikin injiniya. Lokacin da abokin ciniki ya gabatar da zane yana kiran matsayi na haƙuri Ø0.05 mm akan kujerar bawul dangane da fuskar flange, ƙungiyarmu tana bincika ko waccan matsayi na datum ya yi daidai da yuwuwar saitin ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun tutoci * kafin * fara kayan aiki. A watan da ya gabata, wannan ya sami rashin daidaituwa tsakanin buƙatun aji na matsa lamba na ASME B16.34 da ƙayyadaddun ƙayyadaddun yanayin ƙasa akan jikin bawul ɗin ƙofar inch 4.
Wasu na iya yin gardama cewa masu ba da kayayyaki na teku ba za su iya daidaita daidaiton tushen Turai ba. Amma mun aika da 27 a jere na AMS 5387 cobalt-alloy matsa lamba na bawul zuwa mai haɗin tsarin hydraulic na Tier-1 a cikin Jamus - tare da sake fasalin fasalin sifili da cikakken yanayin ganowa zuwa ga lambobi masu zafi mai ɗanɗano. Bambancin? Haɗin kai tsaye. Muna sarrafa simintin gyare-gyare, injina na CNC (5-axis don hadaddun geometries tashar jiragen ruwa), maganin zafi mai zafi, da lapping na ƙarshe - duk ƙarƙashin rufin da aka tabbatar da ISO 9001. Babu handoffs. Babu gibi na dubawa. Babu zargin "gidan simintin gyare-gyare" lokacin da injin da aka kera ya gaza yin gwajin hydrostatic.
Wannan ba ka'idar ba ce. A cikin wani aiki na baya-bayan nan, wata shukar kawar da gishiri ta kudu maso gabashin Asiya tana buƙatar maye gurbin bawul ɗin bincike don sabis na brine mai yawan gishiri. Mai samar da su na baya ya yi amfani da daidaitaccen CF8M-sannan ya ƙara wucewa bayan walda. Mun kayyade F53 duplex bakin karfe, inganta tsarin gating don rage girman raguwa a cikin gidajen diski, kuma mun aiwatar da ASTM A967 nitric acid passivation * bayan * injin ƙarshe amma * kafin * taro. Sakamako: 42% tsawon rayuwar sabis a cikin hanzarin gwajin lalata. Bayanan gaske-ba tsinkaya ba.
Menene ainihin ma'anar "maganin al'ada" akan bene na kanti?
- Bawul mai karkatar da hanya mara daidaitacciyar hanya ta 3 tare da haɗaɗɗun ramukan haɓakar haɓakar thermal - wanda aka yi shi daga T800 cobalt na tushen gami ta amfani da kayan aikin carbide tare da sanyaya-ta hanyar igiya da saka idanu na rawar jiki na ainihin lokaci.
- Gidan famfo na silinda na piston yana buƙatar tabbatarwa tauri a cikin tazara mai zurfi uku (surface, tsakiyar bango, core) kowane ASTM E140, tare da sakamakon shiga akan kowane lambar serial.
- Wani abin nadi na cibiyar winch tare da taurarewar hanyoyin tsere (HRC 58 – 62) da ƙasan OD mai ƙarfi wanda aka riƙe zuwa 0.008 mm TIR - an tabbatar da shi akan Zeiss Contura G2 CMM wanda aka daidaita kullun.
Babu bawuloli guda biyu da suka yi kama da juna a cikin aiki-ko da girman su yayi kama da takarda. Bawul don sarrafa rijiyar mai da iskar gas yana buƙatar ƙarfin tasiri daban-daban a -46°C fiye da ɗaya don sabis na tsaftar abinci a 121°C hawan haifuwar tururi. Muna inganta duka biyu ta ƙayyadaddun ƙa'idodin gwaji na aikace-aikacen-ba kawai jerin abubuwan da aka tabbatar ba.
Idan kuna kimantawa a bakin karfe bawul factory, Yi tambayoyi uku kafin sanya hannu kan PO:
- Shin za ku iya nuna mani MTRs da bayanan kula da zafi don samar da ƙuri'a na CF8M uku na ƙarshe?
- Ta yaya za ku tabbatar da daidaiton ƙananan ƙananan abubuwa a cikin jikin bawul mai kauri-mm 150-musamman kusa da masu tashi da masu ciyarwa?
- Lokacin da kiran GD&T ya ci karo da ƙirƙira, kuna ba da shawarar wasu hanyoyi-ko kawai faɗin “kamar yadda aka zana”?
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana ba da amsa ga waɗanda ke da takaddun shaida-ba alkawuran ba. Wurin mu a Qingdao yana gudanar da ingantattun mashin ɗin sel na 24/7 tare da yashi da layukan simintin saka hannun jari, duk suna ciyarwa cikin tsarin gudanarwa mai inganci guda ɗaya inda kowane wurin dubawa ana yin rikodin dijital kuma ana iya duba shi cikin ainihin lokaci. Ba mu sayar da bawuloli. Muna isar da ingantattun aikin aiki-wanda za'a iya ganowa, maimaituwa, da kuma ƙirƙira don yanayin kaya, ba takaddar bayanai ba.
Gaba na masu sana'a ne waɗanda ke kula da bakin karfe ba a matsayin nau'in abu ba-amma a matsayin tsari: sunadarai, ma'auni na lokaci, tsarin hatsi, daidaiton farfajiya, da lissafin aiki, duk sun daidaita da yanayin aiki. Wannan shine yadda ake gina aminci a ciki-ba a bincika ba.
