Lokacin da injiniyoyi suka ƙididdige bakin karfe don madaidaicin madaidaici, sassa masu mahimmancin manufa-tunanin bawul ɗin matsa lamba a cikin tsarin na'ura mai aiki da ruwa ko gidajen silinda na piston-suna buƙatar fiye da juriya na lalata kawai. Suna buƙatar kwanciyar hankali mai girma a ƙarƙashin hawan keken zafi, amincin microstructural bayan sintering, da ƙarewar saman da ke tsira daga watsa shirye-shiryen abrasive. A nan ne sadaukarwa karfe allura gyare-gyaren bakin karfe factory ya zama wanda ba za a iya sasantawa ba - ba a matsayin mai kaya ba, amma a matsayin abokin tarayya.
Me yasa MIM Bakin Karfe Ke Bukatar Haɗin Kai tsaye-Ba Kayan Aiki kawai ba
Mun ga ayyuka da yawa sun tsaya tsayin daka a matakin samfuri saboda shagon MIM ya kula da hada-hadar kayan abinci da ƙaddamarwa, amma an fitar da shi zuwa ga ma'aikacin makera na gaba ɗaya. Bakin karfe maki kamar 17-4 PH ko 316L suna nuna halin rashin tabbas ba tare da tsantsar iko akan matsi na juzu'i na iskar oxygen, ƙimar ramp, da riƙe lokuta yayin sintering. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Duk aikin MIM - daga tsarin abinci tare da ƙwararren bakin karfe foda (ASTM A985-compliant), ta hanyar kaushi da haɓakar thermal, zuwa vacuum-sintering a cikin ISO 9001-certified tanderu - an aiwatar da shi a ƙarƙashin rufin rufi ɗaya. Babu handoffs. Babu bambancin tsari-zuwa-tsalle a cikin girmar hatsi. Ba abin mamaki ba lokacin da kiran kiran GD&T ya buƙaci ± 0.02 mm akan sifofin bangon bakin ciki ƙasa da kauri 1.2 mm.
Wannan haɗin kai yana da mahimmanci lokacin da lissafi ya haɗu da aiki. Wurin nadi na cibiyar winch don motocin injiniya yana buƙatar taurin ≥38 HRC * da* ƙarancin ƙasa na Ra ≤0.8 µm - buƙatun da ke tilasta yin ciniki tsakanin ɗimbin yawa da injin bayan-MIM. Kayan aikin mu yana gadar da rata: muna sinter kusa-net-siffa, sa'an nan amfani Multi-axis CNC gama tare da hadedde zafi magani-ba waje dabaru, babu sake gyara kurakurai, babu asarar datum ci gaba.
Inda Madaidaicin MIM ya kasa—da kuma Yadda Ƙwararrun Ƙwararru Na Musamman ke Gyara Shi
Wasu na iya jayayya cewa kowane mai bada MIM na iya sarrafa bakin karfe idan sun bi ASTM F2885. Amma yanayin gazawar duniya ta ainihi tana ba da labari daban. Mun gano maimaita fashewa a cikin kujerun bawul na 316L baya zuwa ragowar mai ɗaure carbon da aka makale a iyakokin hatsi - aibi marar gani ga binciken gani amma bala'i a ƙarƙashin matsin lamba. Gyaran bai yi sauri ba; yana canzawa daga tushen paraffin zuwa tushen polyacetal * da * yana ƙara yanayin jujjuya matakin pre-sinter mai sarrafawa. Wannan gyare-gyaren ya fito ne daga shekaru 12 na gudana AMS 5387 cobalt alloy nozzles-kayan da ke da irin wannan haɓakar haɓakar zafin jiki amma mafi girman hukuncin kisa.
Wannan ƙwarewar tana canzawa kai tsaye zuwa bakin karfe. Masana aikin ƙarfe namu ba sa ɗaukar 17-4 PH a matsayin "wani aji kawai." Sun san martaninsa na tsufa yana canzawa idan yawan zafin jiki ya tashi ±5°C. Suna tabbatar da kowane foda mai shigowa tare da nazarin OES-ba don Fe/Cr/Ni kawai ba, amma don gano iskar oxygen da nitrogen waɗanda ke tafiyar da ilimin halittar jiki. Kuma suna rubuta kowane siga: alamar raɓa a cikin ɗakin ɗaki, saurin bel a cikin tanda, har ma da zafi na yanayi yayin sarrafa ɓangaren kore. Domin a cikin manyan majalissar famfo mai matsa lamba, 0.3% bambance-bambancen yawa ba shine ka'ida ba - gazawar gajiya ce da bai kai ba a 12,000 psi.
Daga Zane zuwa Bayarwa: Abin da "Madaidaicin Mahimmanci" Ainihin Ma'anar Aiki
"Maɗaukaki-madaidaici" ana yin amfani da shi akai-akai. Madaidaicin gaskiya yana nufin maimaitawa a cikin sassa 500+, ba kawai sikanin CMM ɗaya ba. Yana nufin riƙe matsayi na gaskiya akan ramukan Ø3.2 mm wanda ke 42 mm baya tsakanin 0.015 mm — * bayan * raguwar raguwa, * bayan * taimako na damuwa, * bayan * wucewa. Ga yadda muke isar da shi:
- Ikon shigowa: Raw bakin karfe foda da aka gwada don rarraba girman barbashi (D50 ≤ 8.5 µm), ƙarancin yawa, da ƙimar kwarara ta ASTM B212
- Tabbatarwa a cikin tsari: Green part nauyi shiga kowane rami; An auna ma'auni ta hanyar Archimedes akan farkon-kashe da kowane kashi 50th
- Tabbatarwa ta ƙarshe: 100% CMM dubawa akan mahimman bayanai; zaɓaɓɓen SEM/EDS akan filaye masu karye don nazarin pore
- Abun iya ganowa: Kowane kuri'a yana ɗauke da takardar shedar QR mai haɗa foda mai yawa, ID ɗin gudu, log ɗin ma'aikaci, da rahoton dubawa na ƙarshe.
Wannan ba ƙari ba ne - yana da tushe ga abokan ciniki a cikin mai & gas waɗanda ke buƙatar bin bin ASME B31.4 ko EU PED 2014/68 / EU takaddun. Ba ma “ƙara takaddun shaida daga baya.” Mun fara gina tsarin, sannan mu bincika a kan shi.
Zaɓan Ƙarfe ɗin Injection ɗinku na Ƙarfe Ma'aikatar Bakin Karfe- Kalli Kasidar
Idan aikin ku na gaba ya ƙunshi sassa na MIM na bakin karfe don manifolds na ruwa, tushen famfo, ko al'adun cobalt-bakin-bakin, yi tambayoyi uku kafin sanya hannu kan PO:
- Shin za su iya nuna maka rikodin daidaitawar tanderun na ƙarshe-kuma su tabbatar da cewa ya ƙunshi cikakken kewayon zafin da aka yi amfani da shi don darajar ku?
- Shin suna yin juzu'in giciye-sassan ƙira akan samarwa, ba kawai R&D yana gudana ba?
- Lokacin da zane ya kira "Ra ≤0.4 µm akan saman rufewa," shin suna yin injin * bayan * sintering - ko kuma dogara da gogewa na biyu wanda ke kawar da taurarewar harka?
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. amsa eh ga duka ukun. Ba kamar yadda da'awar tallace-tallace ba - amma kamar yadda aka tsara, ana iya gani a cikin hanyoyin binciken mu na ISO 9001 kuma an raba su a fili yayin nazarin injiniya. Ba mu sayar da iya aiki. Muna sayar da tsinkaya.
Don aikace-aikacen da ake buƙata inda bakin karfe MIM dole ne ya sadar da daidaito da aminci, haɗin gwiwa tare da a karfe allura gyare-gyaren bakin karfe factory wanda ya mallaki cikakkiyar sarkar darajar-daga kimiyyar foda zuwa gwajin aiki-ba fa'ida ba. Hanya ce kawai wacce ke guje wa gyare-gyare masu tsada, jinkirta ƙaddamarwa, da gazawar filin. Makomar ta masana'antun ne waɗanda ke ɗaukar ƙarfe a matsayin aikin injiniya-ba fitar da waje ba.
