Lokacin da injiniyoyi suka bayyana yashi simintin bakin karfe don manyan bawul ɗin hydraulic mai ƙarfi ko gidajen famfo na teku, ba kawai zaɓin tsari bane - suna yin fare akan kwanciyar hankali mai girma, juriya na lalata, da amincin microstructural a ƙarƙashin damuwa na ainihi. Yawancin masu samar da kayayyaki sunyi alƙawarin madaidaicin simintin gyare-gyare. Kadan ne ke isar da daidaitattun AMS 5387 cobalt alloy nozzles * da * matsananciyar juriya 316 bakin karfe winch shafts daga layin samarwa iri ɗaya - ba tare da juzu'i-zuwa-tsari a tsarin hatsi ko taurin saman ba. Wannan daidaito yana farawa da gano kayan abu, ba da'awar talla ba.
Yashi Bakin Karfe: Inda Metallurgy Ya Haɗu da Ayyukan Mahimmanci
Yashi bakin karfen simintin gyare-gyare ba ya tsufa ba—an zaɓi dabarar da aka zaɓa lokacin da sassa suka wuce kilogiram 15, suna da hadaddun hanyoyin shiga ciki, ko buƙatar magani mai zafi kafin yin aikin ƙarshe. Ba kamar simintin saka hannun jari ba, simintin yashi yana ɗaukar manyan sassa marasa lahani ba tare da lahani harsashi na yumbu ko gurɓatar siliki ba. Amma nasara yana kan abubuwan da ba za a iya sasantawa ba: ƙwararrun albarkatun ƙasa (ba kawai certs na niƙa ba, amma takamaiman takamaiman rahotanni), sarrafa ruwan yashi a cikin ± 0.3%, da ƙimar sanyaya mai sarrafawa don guje wa tsarin sigma a cikin maki biyu.
Mun ga abokan ciniki sun ƙi dukan ɗimbin simintin gyare-gyare na CF8M saboda raguwar porosity da aka kafa kusa da wuraren shiga kofa-duk da wucewar gwajin ultrasonic. Tushen dalili? Rashin daidaiton matsa lamba a tsakanin tashoshin gyare-gyaren hannu. A wurin aikinmu na Qingdao, shirye-shiryen yashi mai sarrafa kansa da kuma sa ido kan zafin jiki na ainihin lokacin yana kawar da wannan canjin. Kowane bakin karfe zuba yana amfani da pre-zafi kyawon tsayuwa a 120-150 ° C, rage thermal girgiza da inganta surface gama zuwa Ra 6.3 μm as-siminti-yanke bayan-machining da 22% a kan matsakaita.
Me yasa Haɗin Kai Tsaye ke doke masu samar da “Simintin-kawai”.
Wasu masana'antu suna jefa sassan bakin karfe. Wasu inji su. Kadan ne ke yin duka-kuma kaɗan ne ke sarrafa maganin zafi da gamawa a cikin gida. Lokacin da piston famfo silinda gidaje bukatar H13 kayan aiki karfe abun da ake saka brazed a cikin wani CF3M jiki, sa'an nan taurara zuwa 48-52 HRC * bayan * machining m sealing saman, handoffs tsakanin dillalai gabatar da kurakurai jeri, hadawan abu da iskar shaka tsangwama, da kuma untraceable thermal tarihi.
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ƙungiya ɗaya tana gudanar da cikakken jerin abubuwa: ƙirar ƙirar → kore yashi gyare-gyare → zubar da wuta → damuwa-taimakon damuwa → CNC juyawa / niƙa → Tabbatar da CMM → wucewa. Mun isar da tushe na famfo na 316L inda kaurin bango ya bambanta ƙasa da ± 0.15 mm a fadin 1.2-mita-mai yiwuwa ne kawai saboda masanin ilimin lissafi iri ɗaya yana tabbatar da girma kafin da bayan magani mai zafi ta amfani da bincike iri ɗaya na CMM.
- Kwanciyar kwanciyar hankali: ≤0.05 mm karkatacciyar hanya akan fasali sama da tsayin mm 300
- Ikon Microstructure: ASTM A957 Level 2 dendrite tazarar da aka tabbatar a kowane tsari
- Mutuncin saman: Ba a gano fashewar ƙasa da aka gano ta hanyar dubawar mai shiga tsakani (FPI) a 10 × haɓakawa
Ayyukan Duniya na Gaskiya: Bayan Takaddun Takaddar
"Bakin Karfe" yana nufin komai ba tare da mahallin ba. Simintin gyare-gyare na 304 na iya tsira daga sabis na ruwa mai tsabta-amma ya kasa yin bala'i a cikin mahallin gas mai tsami saboda ramin chloride. Wannan shine dalilin da ya sa muke gwada kowane zafi na bakin karfe akan ainihin yanayin aikace-aikacen: kekuna na fesa gishiri don manyan rollers na teku, hawan zafin jiki daga -40 ° C zuwa + 200 ° C don manifolds na hydraulic, da haɓakar haɓakar lalata na'urar kwaikwayo na mai & gas bawul.
A bara, wani abokin ciniki na Turai yana buƙatar maye gurbin ginshiƙan shaft don injiniyoyin injiniyoyi masu aiki a cikin yanayin yashi-hamada. Mai samar da su na baya ya yi amfani da daidaitaccen G-X6CrNi18-10 tare da taurin HB 220—rayuwar abin nadi ya kai awoyi 470. Mun canza zuwa al'ada-yashi-simintin 1.4408 (CF3M) tare da warware matsalar a 1050 ° C + saurin kashe ruwa, cimma 285 HB da 32 J tasiri taurin a -20 ° C. Bayanan filin yana nuna sa'o'i 1,850+ yana nufin lokaci tsakanin gazawa. Bambancin ba shine darajar kayan kawai ba - an sarrafa ƙimar ƙarfin ƙarfi da watsawar carbide.
Zaɓan Kamfanin Samar da Yashin Bakin Karfe: Tambayoyi Uku Masu Bayyana Gaskiya
Kafin sanya hannu kan NDA, tambaya:
- "Nuna mani rahotannin yanayin zafi guda uku na ƙarshe na 316L-da daidai sakamakon gwajin tensile." Idan sun yi shakka, tabbatar da kayan aikin su na kan takarda ne, ba haɗaɗɗen tsari ba.
- "Ta yaya kuke hana ɗaukar carbon yayin zubawa?" Ladles mara tsabta ko lokacin da ya wuce kima yana haifar da chromium. Muna amfani da vacuum degassing da titanium tarawa don kulle carbon da ke ƙasa 0.03%.
- "Mene ne mafi tsayin ci gaba da gudana na simintin bakin karfe iri ɗaya ba tare da cancanta ba?" Amsar mu: Batches 47 na AMS 5387 cobalt alloy famfo sassa - ma'aikatan kafa iri ɗaya, tsarin yashi iri ɗaya, daidaita tanderu iri ɗaya.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana aiki da masana'anta simintin yashi bakin karfe da aka gina don aikin maimaituwa-ba samfuri guda ɗaya ba. Ba mu sayar da simintin gyare-gyare. Muna isar da tabbacin aiki: bawul ɗin matsa lamba waɗanda ke hatimi a mashaya 350, gidajen famfo waɗanda ke tsayayya da yashwar cavitation na sa'o'i 12,000+, ɓangarorin winch waɗanda ke kula da taurin kai bayan hawan hawan 50,000. Wannan shine abin da ke faruwa lokacin da ƙarfe, injina, da sarrafa inganci suka raba tsarin bene ɗaya-da sarkar lissafin lissafi ɗaya.
