Lokacin da injiniyoyi a Arewacin Amurka ko Turai suke nema zuba jari jefa kasar Sin, Ba wai kawai suna neman samar da ƙananan farashi ba - suna neman kwanciyar hankali a ƙarƙashin 120 MPa hydraulic matsa lamba, daidaitattun microstructural a cikin sassan 500, da kuma rashin haƙuri ga porosity a cikin cobalt alloy nozzles. Wannan shine gaskiyar da ke bayan tambayar. Mun ga ƙungiyoyin sayayya sun ki amincewa da masu samar da kayayyaki guda uku a jere-ba sama da farashi ba, amma saboda kaurin bangon da aka jefa ya bambanta ± 0.35 mm akan 42-mm-diamita fistan famfo silinda. Madaidaici ba zaɓi ba ne a cikin manyan kayan aikin hydraulic. Yana da tushe.
Me yasa "Sanya Zuba Jari a China" Ba Ya Zama Tsari-Kudi kawai
Shekaru biyar da suka gabata, "simintin zuba jari na kasar Sin" yana nufin simintin yashi tare da taɓawar CNC-da kuma sake yin aiki akai-akai. A yau, yana nufin kafuwar ISO 9001-certified wanda ke tafiyar da cikakken tsarin bacewar kakin zuma: allurar ƙirar kakin zuma a ± 0.05 mm haƙuri, harba harsashi yumbu zuwa 1,100 ° C, injin-taimakawa zuba iko, da jiyya mai zafi da aka tabbatar ta hanyar bincike na hoto. Canjin ya fito ne daga buƙata - ba siyasa ba. Na'ura mai aiki da karfin ruwa OEMs suna buƙatar sassan da ke riƙe kiran GD&T kamar ⌀0.02 mm matsayi haƙuri a kan 8 × M12 threaded shugabannin- ba tare da injinan sakandare ba. Wannan yana yiwuwa ne kawai lokacin da ake yin simintin ƙira, zaɓin gami, da injiniyan ƙira suna rayuwa a cikin ƙungiyar fasaha ɗaya.
Mun goyi bayan sake fasalin taron famfo guda 27 inda abokan ciniki suka maye gurbin injunan bakin karfe tare da kwatankwacin simintin saka hannun jari. Sakamako? 38% matsakaicin raguwar nauyi, 22% ƙananan farashi a kowace naúrar, da kawar da saitin mashin ɗin 3-5. Amma nasara ta ta'allaka ne akan abubuwa guda biyu waɗanda ba za'a iya sasantawa ba: gano kayan abu zuwa lambar zafi, da kuma tabbatar da CMM a cikin matakai a matakai uku-ba wai dubawa na ƙarshe kawai ba.
Inda Mafi yawan Samfuran Ya Kasa—da Yadda Ake Gujewa Shi
Wasu masu saye suna ɗauka cewa duk masu saka hannun jari na China suna ɗaukar allunan cobalt-nickel daidai gwargwado. Ba sa. AMS 5387 cobalt alloy yana buƙatar madaidaicin hawan zafi yayin ƙonewar harsashi. Yayi sauri? Microcracks. Ya yi sannu? Ragowar Carbon. Mun ga ƙimar juzu'i na 41% akan tushen tushen T800 rollers lokacin da masana'antun suka sake amfani da ƙirar harsashi fiye da zagayowar 3-babu faɗakarwa, babu rahoton tushen tushen.
Gyaran ba kwangiloli masu tsauri ba ne. An haɗa shi da sarrafa tsari: shigarwar pyrometer na ainihi yayin lalata, saka idanu na ɓangaren iskar oxygen a cikin ɗakin da aka zubar, da takamaiman takamaiman gwaji akan kowane zafi. A wurin aikinmu na Qingdao, kowane nau'i na AMS 5387 yana yin aikin ƙarfe kafin a sake shi-har ma don samfura. Ba saboda ƙayyadaddun bayanai suna buƙatar shi ba, amma saboda gungu na haɗawa guda ɗaya na iya fara gazawar gajiya a 15,000 psi.
- Cobalt alloy nozzles: Machined daga zuba jari-simintin blanks tare da ≤0.08 Ra surface gama kafin kammalawa
- Wuraren matsi: Cast a cikin ASTM A494 CW6MC, gwada zuwa 1.5 × matsa lamba aiki tare da gano leak helium
- Winch cibiyar shaft rollers: An yi maganin zafi zuwa HRC 52-56, taswirar taurin kai a yankuna 12 radial
Waɗannan ba kayan kasida ba ne. Magani ne da aka ƙirƙira daga maimaita gazawar bincike-ba maganganun iyawa ba.
Haɗin Kai Tsaye Wanda A Haƙiƙa Yana Bada Kwanciyar hankali
Fitar da simintin gyare-gyare, injina, da gamawa don raba dillalai na haɓaka haɗari. Jinkiri a cikin maganin harsashi yana tura tsarin CNC. Wani lahani da aka samu bayan gogewar sojojin da aka yi amfani da su - ko gogewa. Muna gudanar da duka ukun a cikin kayan aikin da suka dace da ISO: sel simintin simintin gyare-gyaren da ke kusa da cibiyoyin injuna 5-axis, tare da dakunan gwaje-gwajen awo da aka haɗa tare da haɗin kai kayan aiki.
Wannan ba game da dacewa ba ne. Yana da game da sarrafa masu canji waɗanda ke ɓarna: raguwar simintin gyare-gyaren yana shafar ƙayyadaddun ƙira na ƙarshe; Machining-induced danniya ya canza bayan zafi-jiyya murdiya; ko da coolant pH a lokacin nika canza saura danniya profiles a cikin bakin ciki-bango gidaje. Lokacin da ƙungiya ɗaya ta mallaki dukan sarkar, GD&T callouts sun kasance daidai daga ƙirar kakin zuma zuwa akwatunan jigilar kaya.
Misali: abokin ciniki na Turai yana buƙatar raka'a 120 na tushen famfo mai simintin ƙarfe tare da flatness ≤0.1 mm sama da 650 mm. Masu gasa sun nakalto makonni 14. Mun isar da shi a cikin 9-saboda injiniyoyinmu na simintin gyaran gyare-gyaren ƙirar gating dangane da hoton zafi na ainihin lokacin, kuma masana'antunmu sun yi amfani da daidaitaccen tsarin CMM don tabbatar da labarin farko da dubawa na ƙarshe. Babu handoffs. Babu sake fassara.
Zaɓan Abokin Zuba Jari naku a China-Abin da za a Tabbatarwa Yanzu
Kar ku tambayi "Shin kuna yin simintin saka hannun jari?" Tambayi maimakon:
- "Nuna mani kuri'a guda uku na AMS 5387 na ƙarshe-ciki har da rahotannin yanayi, ma'aunin gwajin juzu'i, da rajistan ayyukan sake zagayowar harsashi."
- "Ta yaya za ku tabbatar da kwanciyar hankali tsakanin simintin gyaran kafa da na'ura ta ƙarshe? Kuna amfani da hanyoyin kayan aiki da aka biya diyya?"
- "Mene ne matsakaicin bambancin kauri na bango akan sashin 30-mm? Kuma ta yaya kuke auna shi-harsashi mai shigowa, pre-zuba, ko bayan kammala?"
Amsoshi na gaske suna bayyana balaga tsarin. Tabbacin ban sha'awa bai yi ba.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana aiki a inda daidaito ya hadu da lissafi: jefa hadaddun geometries a cikin superalloys, riƙe juriya ba tare da wuce gona da iri ba, da isar da mutuncin aiki-ba kawai sassa ba. Lokacin da kake nema zuba jari jefa kasar Sin, duba girman masana'anta da takaddun shaida. Nemo shaidar gazawar sarrafawa-da yadda ta tsara zagayowar simintin su na gaba.
