Lokacin da injiniyoyi suka bayyana ductile baƙin ƙarfe zuba jari simintin gyaran kafa don bawul ɗin hydraulic masu nauyi mai nauyi ko gidajen famfo, ba kawai zaɓin abu bane—suna ƙaddamar da kwanciyar hankali a ƙarƙashin matsin lamba 350-bar, daidaiton microstructural a cikin batches 500, da rashin haƙuri ga tarin nodule graphite. Shi ya sa zabar dama ductile baƙin ƙarfe zuba jari simintin gyaran kafa factory ba game da jadawalin iya aiki ko takaddun shaida na ISO kadai ba. Yana da game da wanene ya tabbatar da kiran GD&T kafin fara kayan aiki - kuma wanda ya kama karkacewar kauri na 0.012 mm yayin duba-tsoma harsashi, ba bayan maganin zafi ba.
Me yasa ductile iron zuba jari ya kasa-kafin ma ya fara
Mun ga dalilai uku masu maimaitawa a cikin kuri'a da aka ƙi: rashin daidaituwar nodularization saboda ƙayyadaddun cajin da ba a tantance ba; harsashi-mold murdiya daga saurin dewaxing hawan keke; da kuma ɗaukan carbon saman yayin daɗaɗɗen yanayin zafi na harsashi yumbu. Babu ko ɗaya da ya nuna akan rahoton gwajin tensile. Duk suna bayyana ne kawai a cikin gazawar filin-kamar piston famfo gidaje da ke fashe a lokutan aiki 18,000 maimakon 45,000 da aka ƙima. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., muna kula da ductile baƙin ƙarfe ba a matsayin kayayyaki sa amma a matsayin karfe tsarin. Kowane narke yana farawa tare da ƙwararrun manyan abubuwan haɗin gwiwar Fe-Si-Mg-ba nau'ikan nodulizers ba-kuma kowane tsari yana jujjuya tabbataccen yanayin *kafin* zuba. Muna riƙe nodularity sama da 85% (kowace ASTM A536 Grade 65-45-12) a duk sassan da ya fi kauri fiye da 40 mm — ba kawai akan sandunan gwaji ba.
Haɗin kai tsaye wanda ke kulle cikin aiki-ba kawai sassa ba
Yawancin masana'antun suna ba da simintin simintin gyare-gyare ga mashinan ɓangare na uku. Wannan yana haifar da ɓangarorin mahimmanci: murɗawar zafi tsakanin simintin gyare-gyare da injina, bayanan bayanan da ba su dace da su ba, da kuma asarar ganowa lokacin da bayanan jiyya na zafi ba su daidaita da rakodin kayan aikin CNC ba. QINGDAO QIANGSENYUAN ta mallaki cikakken sarkar-daga ƙirar harsashi ta hanyar niƙa mai axis biyar da taurin saman nitride. Don abin nadi na cibiyar winch yana buƙatar ± 0.005 mm zagaye da taurin saman 58 HRC, wannan yana nufin mashin ɗin yayin da har yanzu simintin yana tsakanin 20 ° C na zafinta na rage damuwa. Babu sake gyarawa. Babu sake aunawa. Datum ɗaya kawai, tarihin zafin rana ɗaya, layin lissafin lissafi ɗaya. Mun yanke matsakaicin lokacin jagora don hadadden taro na baƙin ƙarfe da kashi 37% tare da samfuran masu rarraba-ba ta hanyar gaggawa ba, amma ta hanyar kawar da jinkirin hannu da sake yin madaukai.
Inda "madaidaicin" ya hadu da suturar duniyar gaske
Simintin saka hannun jari na baƙin ƙarfe yana ba da ƙima kawai lokacin da lissafin lissafi ya yi daidai da aiki-ba ƙayyadaddun bayanai ba. Yi la'akari da AMS 5387 cobalt alloy pump impeller hub jefa a cikin ductile baƙin ƙarfe don ƙididdige farashi. Matsakaicin sa tare da bakin karfe dole ne ya kiyaye tsangwama bayan zagayowar zafi 12,000. Madaidaitan alawus na raguwa sun gaza a nan. Ƙungiyarmu tana amfani da ƙirar ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun 3:1 ke da ma'aunin kauri - kuma suna daidaita girman ƙirar kakin zuma daidai. Mun isar da gidaje na Silinda don famfunan jet na ruwa mai matsa lamba inda madaidaiciyar madaidaiciya ta tsaya tsakanin 0.008 mm sama da tsayin mm 320, an tabbatar ta hanyar sikanin CMM na Laser-ba ma'aunin toshe ba. Wannan madaidaicin ba sa'a ba ne. Yana da ƙididdiga bayanan faɗaɗa harsashi, sarrafa ƙimar ƙwanƙwasa, da narkar da zazzabi na ainihin lokacin da aka daidaita ga kowane zubo.
Zaɓin masana'antar simintin saka hannun jari na baƙin ƙarfe-bayan ƙasida
Yi waɗannan tambayoyi guda huɗu kafin sanya hannu kan PO:
- Shin za ku iya raba takaddun shaida don narke uku na ƙarshe na Grade 65-45-12-kuma ku tabbatar da ganowa zuwa lambar zafi? (Ba kawai niƙa certs-ainihin rahoton bincike na ladle.)
- Nuna mana ka'idar taswirar nodularity don jikin bawul ɗin kilogiram 120. (Shin kuna sashe kuma ku ƙirƙira kowane ƙuri'a-ko dogara ga daidaitawar saurin ultrasonic?)
- Ta yaya kuke tabbatar da kwanciyar hankali bayan sauyin damuwa? (Muna amfani da sikanin 3D na gani pre- da bayan anneal akan sassa na farko-ba kawai binciken tabo na CMM ba.)
- Menene madaidaicin juriyar bambancin kauri na bango don simintin ƙarfe na simintin saka hannun jari sama da mm 35? (Amsar mu: ± 0.8 mm-tabbace ta ASME B16.34 Annex F.)
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana aiki daga Qingdao tare da tallafin injiniya kai tsaye ga abokan cinikin Arewacin Amurka, Turai, da kudu maso gabashin Asiya. Ba mu sayar da simintin gyare-gyare. Muna isar da mutuncin aiki-wanda aka auna a lokacin aiki, ba kawai nauyin siminti ba. Lokacin da ɓangaren nauyin nauyi na gaba ya buƙaci duka ƙarfin ƙarfe na ƙarfe da amincin saka hannun jari, fara da wanene ya auna menene-kuma yaushe.
