Kamfanonin simintin gyare-gyaren ƙarfe-wannan jumla ba kalma ce kawai ba. Shine injiniyoyin tacewa na farko da masu sarrafa siyayya da ake amfani da su lokacin da ake samun sassan da dole ne su tsira daga bututun ruwa na mashaya 300, shekarun da suka gabata na lalacewa, ko hawan keke a cikin tudun ruwa na teku. Madaidaici ba na zaɓi ba. An gina shi a cikin nodules ɗin graphite, an tabbatar da shi a cikin kowane sikanin CMM, kuma an kulle shi tare da cikakken gano abu.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana aiki da irin wannan kayan aiki guda ɗaya-mai yarda da ISO, haɗaɗɗen tsaye, da tushe a cikin yanayin yanayin masana'antu na Qingdao. Mun ga abokan ciniki sun dawo sau uku-ba don zane-zanen su ya canza ba, amma saboda yanayin rashin nasarar su ya yi. Gidan famfon famfo na piston ya fashe a cikin watanni 18 a cikin aikace-aikacen multiphase na Tekun Arewa. Tushen dalili? Ƙunƙarar ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfar ƙa'idar flange mai zafi. Wannan sake fasalin-gating da aka sake fasalin, ƙimar sanyaya mai sarrafawa, sassaucin danniya bayan jefawa kafin yin aiki-yanzu yana jigilar kaya tare da AMS 2750 pyrometric logs da sandunan tensile da aka gwada ta ASTM A536 Grade 65-45-12. Kwarewar gaske tana tsara sarrafa tsari na gaske.
Ƙarfi guda huɗu sun raba masana'antar simintin gyare-gyaren ductile baƙin ƙarfe masana'anta daga masu samar da kayayyaki:
- Ilimin ƙarfe na ƙarfe akan maye gurbin kayan: Babu "daidai-sa" musanya. Kowane nau'i na baƙin ƙarfe na ductile yana farawa da ƙwararrun kayan caji - ƙarfen alade, ferrosilicon, da ma'auni na ma'aunin magnesium da aka sa ido ta lamba mai yawa. Mun inganta nodularity (ASTM E2392), ƙididdige nodule (≥150/mm²), da ferrite/pearlite rabo ta hanyar metalography-ba kawai karatun tauri ba. Lokacin da OEM ta Turai ta ƙayyadaddun ASTM A don babban abin nadi na winch winch, mun gudanar da zafi na matukin jirgi biyu tare da inoculation daban don buga yawan amfanin ƙasa 72 ba tare da kashewa ba.
- Haɗin simintin gyare-gyare a matsayin zaren injiniya ɗaya: Haƙurin yin simintin yashi baya ɓacewa bayan CNC. Muna injin mahimman abubuwan rufewa * a cikin saitin guda ɗaya * da aka yi amfani da shi don juye juye-babu sake gyarawa. Don jikin bawul ɗin matsa lamba, wannan yana nufin ± 0.015 mm haƙurin matsayi tsakanin ramukan tashar jiragen ruwa da fuskoki masu hawa actuator, wanda aka gudanar a kan milling 5-axis da OD nika. Ba mu “ƙara daidaici daga baya.” Mun tsara shi a cikin daftarin simintin gyare-gyare, wurin bugawa, da machining datum makirci daga rana ta ɗaya.
- Ingancin aiki-ba yarda da ƙima kawai ba: Ba a yarda da tushen famfo ba bayan binciken CMM. An kulle shi zuwa na'urar gwaji, an ɗora shi zuwa ƙarfin aiki na 1.5 ×, kuma an duba shi don juyawa tare da interferometry na laser. Mun kama jitu mai ƙarfi a 212 Hz wanda ya haifar da fashe gajiya a cikin raka'o'in filin - ana iya gani kawai yayin gwajin nauyi mai ƙarfi, ba a tsaye ba. Abokan ciniki suna samun rahotannin GD&T duka *da* taƙaitaccen gwajin aiki.
- Bayyanar sarkar kayayyaki za ku iya tantancewa: Takaddun shaida sun isa kafin narkewa. Taswirar maganin zafi an buga su sau da yawa kuma an sanya hannu. Kowane filogi na cobalt-nickel da aka yi daga alloy T800 yana ɗaukar rahoton PMI wanda ya dace da takaddun shaida AMS 5387. Babu "lamuncewar mai bayarwa." Takaddun shaida kawai-wanda ake iya ganowa zuwa ID na tanderu, canjin ma'aikaci, da takardar shaidar daidaitawa na sikirin da aka yi amfani da shi.
Wasu suna jayayya cewa simintin yashi ba zai iya daidaita simintin saka hannun jari ba don hadadden geometries. Amma mun tura AMS 5387 cobalt alloy nozzles tare da sassan bangon 0.8 mm da tashoshi masu sanyaya cikin ciki - jefa a cikin koren yashi, sannan aka yi amfani da kayan aikin lu'u-lu'u na polycrystalline. Me yasa? Saboda shagon ƙirar mu yana amfani da gyare-gyaren resin da aka buga da SLA tare da goyon bayan harsashi na yumbu, kuma ƙungiyar mu ta kafa tana daidaita matsa lamba a ainihin lokacin dangane da na'urori masu auna yashi-ba saitunan tsarin mulki ba. Ba a guje wa rikitarwa. Ana gudanar da shi tare da saƙon sarrafawa.
Koyaushe ana tambayar farashi. Ga abin da ke motsa allura: rage nauyin sashi yana yanke farashin albarkatun kasa amma yana ƙara lokacin injin; m GD&T yana haɓaka aikin dubawa amma yana kawar da gazawar filin; Baƙin ƙarfe mai ƙwanƙwasa biyu (ASTM A536 + ISO 1083) yana ƙara $ 1.20 / kg amma yana guje wa sake yin aiki akan odar fitarwa. Mun faɗi duka zaɓuɓɓuka uku-tare da nazarin yanayin gazawa ga kowane. Wani abokin ciniki na kudu maso gabashin Asiya ya canza daga shigo da gidajen ƙarfe na ductile zuwa samarwa na gida bayan ƙididdige jimlar farashin mallaka: 22% ƙasa da ƙasa sama da shekaru biyar, gami da dabaru, jadawalin kuɗin fito, da rashin shiri daga ƙarshen bayarwa.
Kamfanonin simintin gyare-gyaren ƙarfe masu dogaro ba su yi alkawarin cikawa ba. Sun yi alkawarin tsinkaya. A QINGDAO QIANGSENYUAN TECHNOLOGY, wannan yana nufin kowane bawul ɗin matsa lamba yana da lamba ta musamman da ke da alaƙa da narkakken log ɗin sa, bita na shirin injin, da rikodin hydrotest na ƙarshe. Yana nufin samfurin lokacin jagoran shine kwanaki 18-ba "da wuri-wuri ba." Yana nufin injiniyan ku ya sami bita na ƙirƙira a cikin sa'o'i 48 na lodawa-ba jerin abubuwan dubawa na PDF ba.
Gaba ba manyan tanderu ba ne. Haɗin kai ya fi wayo: hoto na thermal na ainihin lokacin ƙarfafawa, tsinkayar porosity na AI-taimaka daga CT scans, matakan haɓaka inda tashoshi masu sanyaya sanyaya ke kawar da sassan da aka yi bayan injin. Amma babu ɗayan waɗannan abubuwan idan ginin ƙarfe na ƙarfe ya tashi - ko kuma idan daidaiton girman ya gaza a zafin aiki na 60 ° C. Wannan shine dalilin da ya sa har yanzu muna bincika rarraba nodule na graphite a ƙarƙashin haɓakar 100 ×. Daidaitawa yana farawa daga inda ido ya tsaya - kuma yana ƙare inda aikace-aikacen ya buƙaci shi.
