Lokacin da kuka ji 'Monel alloy sassa', yawancin takaddun siyayya kawai suna lissafin ASTM B164 UNS N04400 kuma ku ci gaba. Wannan shine kuskuren farko. A hakikanin gaskiya, ƙayyade Monel-ko yana da 400, K-500, ko R-405 maras amfani - shine kawai farawa. Kalubale na gaske yana farawa lokacin da kuke buƙatar wani sashi wanda ba wai kawai yana tsayayya da lalata ruwan teku ko harin caustic ba amma kuma yana riƙe da haƙurin matsayi na gaskiya a ƙarƙashin kaya, ko kuma yana da amintaccen gajiyawar rayuwa a cikin aikace-aikacen bututun bawul. Na ga ƙira da yawa sun gaza saboda an fi mayar da hankali kan matakin kayan ne kawai, ba kan yadda ake jujjuya shi daga ƙwararriyar ingot zuwa ɓangaren da aka gama, mai aiki ba. Tazarar da ke tsakanin almara ta gami da kuma zahirin gaskiya na masana'anta shi ne inda aka ci nasara ko asara.
Sauƙaƙen Ruɗi na Juriyar Lalacewa
Kowa ya san Monel don yanayin lalata ne. Amma lalatacce kalma ce mai haɗari. Muna da abokin ciniki a cikin mai & iskar gas wanda ke buƙatar impellers. Sun ayyana Monel 400 don juriyar ruwan teku, wanda yayi daidai. Bashi na farko ya ci duk daidaitattun gwajin feshin gishiri na ASTM. Amma duk da haka, sun gaza a fagen cikin watanni shida. Batun? Sabis ɗin ba kawai shiru ba ne, ruwan teku na yanayi; ruwan teku ne cike da tarkacen yashi, yana gudana cikin sauri. Kayan ya yi tsayayya da lalata gabaɗaya da kyau, amma mun shaida mummunan lalata-lalata a takamaiman manyan gefuna. Darasin ba shine Monel yayi kuskure ba, amma cewa aikace-aikacen sa yana buƙatar wata hanya ta daban-watakila mafi girman daraja kamar K-500 ta hanyar tsufa, ko canjin ƙira don canza yanayin motsi. Anan shine inda gwanintar kafuwar ya fi mahimmanci fiye da kasidarsu.
Wannan ya danganta da machining. Monel yana aiki-hardens. Idan mai siyar da injin ɗin ku ya kula da shi kamar bakin karfe 316, suna cikin duniyar cutarwa. Kayan aiki sun yi saurin lalacewa sau uku idan ba ku sami ciyarwar, gudu, da sanyaya daidai ba. Na tuna wani tsari na Monel alloy jikin bawul inda shagon ya yi amfani da joometry ba daidai ba. Sakamakon ba shine gazawar kayan aiki nan da nan ba, amma ƙaramin aiki ne mai taurin kai akan saman rufewa. Ya wuce gwaje-gwajen matsa lamba da farko, amma a ƙarƙashin hawan keken zafi, ƙananan ƙwayoyin cuta sun fara daga wannan Layer. Rashin gazawar ta kasance a hankali da tsada. Waɗannan cikakkun bayanan tsari ne waɗanda ba a iya gani waɗanda ke raba ɓangaren aiki daga abin dogaro.
Shi ya sa haɗin gwiwa tare da masana'anta wanda ke samun cikakken sarkar - daga narkewa zuwa na'ura - ba za a iya sasantawa ba. Kamfanin kamar Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), tare da shekaru talatin da suka gabata a cikin simintin gyare-gyare da injina, yawanci suna da wannan zurfafan ilimin. Kuna iya samun cikakken tsarin su a rukunin yanar gizon su, https://www.tsingtaocnc.com. Ba kawai game da samun na'urar CNC ba; game da sanin cewa ma'aunin injina na simintin Monel mai harsashi na iya buƙatar daidaitawa idan aka kwatanta da ɗaya daga simintin saka hannun jari saboda bambance-bambancen dabara a tsarin hatsi da sikelin saman.
Hanyar Simintin Ɗaukaka: Direban Ayyukan da Ba a Faɗawa ba
Zaɓi tsakanin harsashi mold da zuba jari don Monel sassa ba kawai motsa jiki ba ne. Don ƙaƙƙarfan mahalli mai sauƙi, ƙaƙƙarfan matsugunin famfo, simintin gyare-gyaren harsashi da kyau daga wani ma'auni mai aminci ya isa daidai kuma ya fi tattalin arziki. Mutuncin narke da ingancin yashi mai gyare-gyare yana da mahimmanci. Duk wani gurɓataccen sulfur a cikin yashi zai lalata juriyar lalatawar ɓangaren a saman.
Koyaya, don hadaddun abubuwa masu sirara, masu sirara kamar sassan tsarin mai na sararin samaniya ko rikitattun na'urorin sarrafa sinadarai, jefar da hannun jari sau da yawa hanya ce kawai. Daidaiton girman girman da ƙarewar saman sun fi girma, yana rage adadin mashin ɗin da ke gaba akan wannan abu mai tauri. Amma ga abin kamawa: Babban abun ciki na nickel na Monel yana sa ya zama mai sauƙi ga wasu lahani na saka hannun jari kamar micro-porosity idan ba'a buga zafin zafin jiki da zafin jiki mai tsauri tare da matsananciyar daidaito ba. Wani sabon shago zuwa manyan allunan nickel na iya samar da sashin da yayi kama da kamala amma ya gaza a duban X-ray.
Ayyukan QSY na dogon lokaci a cikin duka harsashi mold simintin gyaran kafa kuma zuba jari, kamar yadda aka gani a cikin gabatarwar su, yana nuna cewa da alama sun yi amfani da waɗannan ramukan. Wannan damar biyun babbar fa'ida ce. Za su iya ba da shawarar mafi fasaha da tsarin tattalin arziki maimakon tura wanda kawai suke da shi. Ga mai ƙira, wannan shigarwar tuntuba tana da kima a lokacin DFM (Design for Manufacturability) mataki.
Ƙarshe Machining: Inda Takaddun Bayanai Suka Haɗu da Gaskiya
Injin CNC shine inda a ƙarshe aka tabbatar da kaddarorin ka'idar gami. Wani ɓangaren Monel na iya zama daidai gwargwado kuma har yanzu yana lalacewa akan bene na injin. Doka ta farko ita ce cikakkiyar horon hanyar kayan aiki. Babu matsuguni, babu yanke yanke sai dai idan ya zama dole. Koyaushe muna dagewa da sabbin kayan aikin sadaukarwa don ayyukan Monel-babu sake-sake ƙarshen niƙa daga aikin ƙarfe na carbon.
Bukatun gama saman ƙasa wani muhimmin batu ne. Za'a iya ƙayyadadden ƙarshen microinch na 32 Ra don saman rufewa. Samun hakan akan Monel yana buƙatar tsari mai ƙwaƙƙwaran matakai masu yawa: roughing, Semi-karewa, sannan gamawa da kaifi sosai, kayan aikin rake mai inganci ta amfani da babban saurin ƙasa da ƙarancin abinci. Sa'an nan, sau da yawa, mataki na ƙarshe ko gogewa. Tsallake kowane mataki ko ƙoƙarin ɗaukar abu da yawa a ƙarshen wucewar zai haifar da taurin aiki kuma ya bar ƙasa mai karɓuwa ta gani amma ta lalace.
Bugu da ƙari, rage damuwa bayan ƙera mashin ɗin mataki ne da shaguna da yawa ke ƙoƙarin tsallakewa don adana lokaci. Don sassa masu inganci, musamman a cikin Monel K-500, wannan caca ne. Ragowar damuwa daga m roughing na iya karkatar da sashin yayin aikin injin ƙarshe ko kuma daga baya a cikin sabis. Yana da wani classic kudin vs. hadarin yanke shawara cewa gogaggen machinist zai tuta nan da nan.
Takaddun Takaddun Kayan Abu da Ganewa: Hanyar Takarda
Wannan shine sashi mai ban sha'awa, mai mahimmanci. Don aikace-aikacen darajar kasuwanci, daidaitaccen MTR (Rahoton Gwajin Mill) na iya isa. Amma don ASME, API, ko ƙayyadaddun bayanai na soja, kuna buƙatar cikakken ganowa. Wannan yana nufin takaddun shaida na Monel alloy bar ko ingot yakamata ya bi kayan ta kowane mataki. ƙwararren masana'anta kamar QSY, yana mu'amala musamman gami akai-akai, za su sami tsarin don wannan. Ya kamata ku iya gano flange da aka gama komawa zuwa lambar zafi na ainihin narkewa.
Na shiga cikin bincike na gazawa inda sashin sinadarai ba shi da ƙayyadaddun bayanai akan abun cikin tagulla — ya kasance a ƙarshen kewayon. Duk da yake a zahiri a cikin ƙayyadaddun bayanai, ya canza yanayin kwanciyar hankali kaɗan, yana rage ductility a cikin takamaiman yanayin zafi. Idan ba tare da cikakken ganowa ba, nuna tushen dalilin azaman al'amarin batch na kayan aiki tare da batun masana'anta da ba zai yiwu ba. Yanzu, koyaushe muna yin bitar ainihin lambobin MTR, ba kawai tambari ba.
Ƙoƙarin da ba a yi nasara ba da Ƙoƙarin Mahimmanci
Ba kowane labarin Monel ne nasara ba. Tun da farko, mun yi ƙoƙari mu tura iyakoki tare da haɗin gwiwar Monel 400 da aka jefar da jari don mahaɗar sinadarai. Zane ya kasance kyakkyawa, yana rage sassa masu waldawa da yawa zuwa ɗaya. Ya yi kyau sosai, amma yayin gwajin ruwa, ya fashe a kusurwar ciki mai cike da damuwa da muka manta. Gyaran ba shine canza kayan ba, amma don komawa zuwa ƙirar sassa biyu wanda aka haɗa tare da wayar walda mai dacewa da Monel. Canjin aikin walda shi kaɗai ya ɗauki makonni biyu. An sadaukar da ladabi na zane don aminci. Wani lokaci, mafi kyawun aikace-aikacen gami da babban aiki shine sanin lokacin da za'a raba ƙirar don sanya shi zahiri ƙira kuma ba a iya gani.
Wani sulhu na gama gari shine akan haƙuri. Masu zanen kaya galibi suna kiran juriyar mashin ɗin da ta dace da madaidaicin shingen ƙarfe na ƙasa akan duk fasalulluka na ɓangaren Monel. Wannan na iya ninka lokacin mashin ɗin da farashi saboda buƙatun wucewar ƙarewa da yawa. Hanyar da ake amfani da ita ita ce gano mahimman fasalulluka na ayyuka - diamita na rufewa, fuskokin mating - da kuma amfani da juriya a wurin. Don girman ambulaf mara mahimmanci, buɗe juriya zuwa mafi madaidaicin matakin don yin simintin gyare-gyare da mashin ɗin ƙira na iya rage farashi da 30% ko fiye ba tare da asarar aiki ba. Hira ce mai bukatar faruwa da wuri.
Kammalawa: Tsari Ne Ba Saye Ba
A ƙarshe, tushen abin dogara Monel gami sassa yana game da yin aiki tare da tsarin masana'antu, ba kawai bayar da PO ba. Yana farawa da tattaunawa ta gaskiya ta fasaha tare da mai siyar ku game da ainihin yanayin sabis, ba kawai takamaiman kayan aiki ba. Ya ƙunshi bitar tsarin aiwatar da su don yin simintin gyare-gyare da injina, da fahimtar ƙofofinsu masu inganci. Kamfanonin da suka ƙetare yanayin koyo, kamar QSY tare da tarihin shekaru 30, suna ba da tafsirin ilimin tacit wanda baya kan kowane takardar bayanai. Wataƙila sun ga gazawar lalata-lalata, sun yi yaƙi da ƙarfin aiki, da kuma daidaita sigogin saka hannun jari ta hanyar gwaji da kuskure. Manufar ita ce a yi amfani da wannan ƙwarewar, don haka sashinku ba shine wurin da za su iya samun gogewar koyo na gaba ba, amma shaida ga darussan da suka rigaya suka koya. Sashin da ya isa tashar jirgin ruwa ya kamata ya ji kamar babu makawa, abin dogaro na wannan ilimin tsari mai zurfi.
