Masu samar da masana'anta na QT400-18 ba kawai jigilar kaya ba - suna ba da amincewar tsarin. Lokacin da na'ura mai aiki da karfin ruwa dole ne rike 350 mashaya, lokacin da winch cibiyar shaft jimre yau da kullum torsional girgiza a cikin Arctic teku yanayi, ko kuma a lokacin da famfo gidaje fuskantar abrasive slurry a 120 ° C, ductile baƙin ƙarfe ductile ba bayanin kula ba ne. Yana da tushe. QT400-18 ba ƙarfe mai launin toka ba ne. Yana da wani m sarrafawa, spheroidal graphite microstructure tare da mafi ƙarancin tensile ƙarfi na 400 MPa da elongation na 18% - wani rare ma'auni na ƙarfi, ductility, da kuma machinability cewa 'yan foundries akai cimma a fadin tsari masu girma dabam daga 5 zuwa 500 raka'a.
Me yasa QT400-18 ya kasa-ba a cikin dakin gwaje-gwaje ba, amma a kan bene
Mun ga nau'ikan gazawa guda uku masu maimaitawa a cikin aikace-aikacen QT400-18 na gaske: ƙididdige nodule marasa daidaituwa a ƙasa 120/mm², ferrite / pearlite rabo yana jujjuyawa sama da 85/15%, da ragowar damuwa-induced warpage bayan CNC gama. Waɗannan ba haɗari ba ne na ka'idar. Suna bayyana kamar yadda gajiyawar da ba ta kai ba ta fashe a cikin gidajen piston famfo na Silinda, kamar yadda rashin haƙuri a cikin jikin bawul ɗin matsa lamba, ko kuma ƙaramar fage yayin harbin harbi. Tushen dalili? Yawancin jerin "QT400-18" akan layi suna magana ne kawai na ƙididdiga na ƙididdiga - ba ainihin sarrafa tsarin simintin ba. Amincewa ta gaskiya yana buƙatar kulawa mai ƙarfi akan lokacin jiyya na magnesium, yawan zafin jiki, ƙimar sanyaya a cikin ƙirjin, da sake zagayowar taimako na damuwa. A wurin aikinmu na Qingdao, kowane zafi na QT400-18 yana jure wa kallon kallo, tabbatar da yanayin halittar nodule ta hanyar ASTM E2399, da gwajin tensile ta ISO 6892-1 - ba kawai akan sandunan gwaji ba, amma akan takaddun wakilcin da aka yanke daga mafi girman sashin simintin.
Haɗin kai tsaye yana warware abin da takamaiman takaddun takaddun ke ɓoye
Yawancin masu siye suna samo simintin QT400-18 daga mai kaya ɗaya kuma suna gama su a wani. Wannan kashe-kashen yana haifar da makafi. Muna yin injin kowane sashi na QT400-18 a cikin gida - nan da nan bayan an kawar da damuwa, kafin a fara tuƙi mai girma. Kwayoyin CNC ɗin mu guda biyar sun yanke kai tsaye daga simintin yashi kore ta amfani da kayan aikin carbide wanda aka inganta don ƙarfe mai ƙoshin ƙarfe. Me yasa wannan ya shafi? Saboda injin QT400-18 ba tare da lissafin juzu'in juzu'i na graphite na 12-15% yana haifar da ginanniyar zance, guntun baki, da ƙaramar tsagewar ƙasa ba. Muna daidaita ƙimar ciyarwa da 18% ƙasa da daidaitattun sigogin ƙarfe kuma muna amfani da nozzles isar da sanyaya a cikin 12 mm na yankin yanke. Sakamako: rashin ƙarfi na saman Ra ≤ 0.8 μm akan filaye masu mahimmanci, sake yin aikin sifili akan ƙwanƙwasawa don bawul ɗin ruwa na ruwa.
Ganowa ba aikin takarda ba ne - kimiyyar lissafi ne
Lokacin da abokin ciniki a Jamus ya ba da rahoton lalacewa na bazata a kan tushen famfo na QT400-18, ba mu binciki batun ba ga simintin gyare-gyaren ba-amma ga mashin mai sanyaya sanyi yana faɗuwa ƙasa da 7.2% yayin canjin karshen mako. Cikakken ganowa yana nufin haɗa kowane sashi zuwa lambar zafi mai ɗanɗano, tanda lokacin tanderu, lanƙwan rage damuwa, rahoton binciken CMM, har ma da takamaiman nau'in sanyaya da aka yi amfani da shi yayin kammalawa. Muna yin rikodin duk waɗannan-ba a cikin Excel ba, amma a cikin MES ɗinmu na ISO 9001, tare da sa hannun dijital a kowane wurin bincike. Babu zanen “kamar yadda aka gina”. Ana tabbatar da kowane girma da kiran GD&T ta amfani da Zeiss CONTURA G2 CMMs waɗanda aka daidaita su zuwa ma'auni na NIST. Idan zanen ku yana ƙayyadaddun jurewar matsayi na Ø0.05 mm akan ƙirar flange, rahoton mu na farko yana nuna ainihin karkatacciyar hanya: Ø0.032 mm—aunawa, bokan, adanawa.
Aikin ku na QT400-18 yana farawa kafin oda
Ba mu faɗin simintin gyare-gyare. Muna haɗin gwiwar injiniya mafita. Lokacin da kuka aika samfurin CAD na jikin bawul ɗin matsi mai ƙarfi, masu aikin ƙarfe namu suna duba kaurin bango don haɗarin ƙarfafawa. Tutar masana'antun mu masu ƙasƙanci suna buƙatar kayan aiki na musamman. Ƙwararrun Ƙwararrunmu suna ba da shawarar wuraren dubawa da suka dace da bukatun ASME B16.34-ba kawai inda yake da sauƙin aunawa ba, amma inda rashin nasara ya faru. A kwata na ƙarshe, mun sake tsara babban ɗakin cin abinci na QT400-18 na abokin ciniki don kawar da radius fillet na mm 22 wanda ya haifar da raguwar gurɓataccen yanayi. Gating da aka sake fasalin ya rage raguwa daga 14% zuwa 2.3%. Babu alama. Mutuncin aiki kawai, isarwa.
Idan kana buƙatar simintin gyare-gyare na QT400-18 waɗanda ke yi-ba kawai wuce dubawa ba-tuntuɓi QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. kai tsaye. Muna kera sassan QT400-18 don tsarin hydraulic, motocin injiniya, kayan aikin mai da iskar gas, da majalissar famfo na musamman-a ƙarƙashin cikakken sarrafa tsari, cikakken ganowa, da cikakken lissafi. Ziyarci https://www.tsingtaocnc.com don duba bayanin iyawarmu na QT400-18 na yanzu, takaddun shaida, da kalandar iya aiki.
