Lokacin da kuka ji 'madaidaicin madaidaicin magnesium alloy die simintin', hoton nan da nan sau da yawa mara aibi ne, sirara mai bango, hadadden sashi kai tsaye daga cikin mutu, shirye don taro. Wannan shine manufa ta kasuwanci. Gaskiyar, wanda muke gwagwarmaya tare da yau da kullum, shine samun daidaito na gaskiya a cikin Mg alloys ya rage game da gami da kanta kuma game da sarrafa duk abin da ke faruwa kafin karfe ya taɓa ramin mutuwa. Tsari ne, ba tsari guda ba. Yawancin abokan ciniki sun zo cikin tunanin sihiri yana cikin magnesium gami dabara-AZ91D vs AM60B-kuma yayin da hakan ke da mahimmanci, Zan yi jayayya da ƙirar ƙofa, kula da thermal na mutu, da sigogin bayanan martaba sau da yawa suna yin ko karya juzu'in juriya kafin ma muyi magana game da sakandare. Injin CNC.
Gidauniyar: Me yasa Magnesium, kuma Me yasa yake da dabara
Muna aiki tare da abubuwa da yawa a QSY-bakin, gami da tushen nickel don matsananciyar mahalli-amma magnesium alloy mutu simintin gyaran kafa ya mamaye wani alkuki na musamman. Roko a bayyane yake: ƙarfin ban mamaki-zuwa-nauyi, mai kyau damping, kyakkyawan machinability. Amma sunansa na kasancewa 'mai sauƙi' don jefawa yaudara ne. Ee, yana gudana kamar ruwa idan aka kwatanta da aluminum, yana cika sassan bakin ciki da kyau. Juye kenan. Ƙarƙashin ƙasa shine irin wannan ruwa yana sa ya zama mai saurin cikawa idan tsarin harbi ba a daidaita shi ba, yana haifar da kamawar iska da porosity daidai inda ba ka so - a cikin yankunan da aka tsara don high daidaito machining daga baya. Ba za ku iya na'ura a cikin rami ba.
Na tuna da wani aiki don mahalli na firikwensin shekaru kaɗan baya. Bangaren yana da juriya na 0.05mm akan mahimmin rami. Mun yi amfani da alloy mai ƙima, amma harbin farko ya gaza dubawa. Batun ba shine tsaftar gami ba; ya mutu rashin daidaituwa. Rabin rabin wadanda suka mutu yana gudana a 30°C mai sanyaya fiye da ɗayan, yana haifar da rashin daidaituwa da rashin daidaituwa wanda ya kashe daidaito. Dole ne mu sake gyara ƙarin layukan sanyaya kuma mu tafi tare da tsarin sanyaya. Wannan shine irin hannaye-kan kunna kalmar 'high ainihin' abin da ake buƙata cikin shiru.
Wannan shine inda asalin mu yake harsashi mold simintin gyaran kafa kuma zuba jari don sauran karafa a zahiri suna sanar da aikin simintin mu na Mg die. Waɗancan hanyoyin sun shafi ingantaccen yanayin zafi da sarrafa gating don cimma kwanciyar hankali. Muna amfani da wannan falsafar guda ɗaya ta sarrafa hanyar ƙarfafa ƙarfi, kawai a lokacin zagayowar sauri. Tunani ne.
The Die is the Unsing Hero (ko Villain)
Idan kuna so high daidaici magnesium gami mutu simintin gyaran kafa, fara da saka hannun jari 60% na ƙoƙarin ku da kasafin kuɗi a cikin ƙirar mutuwa da gini. Kyakkyawan mutuwa ga Mg ba kawai shingen ƙarfe ba ne. Gudanar da gradient thermal yana da mahimmanci. Mu sau da yawa muna amfani da tashoshi na kwantar da hankali kusa da fasali masu mahimmanci a yanzu, wani abu da muka koya ba za a iya sasantawa ba don sassan juriya. Matsakaicin ƙimar ƙarfe mai mutuƙar ma'ana-H13 daidai yake, amma don tsayin daka, ayyuka masu inganci, ƙimar ƙima tare da mafi kyawun juriya na zafin zafi yana biya ta hanyar kiyaye girman rami sama da dubunnan hawan keke.
Venting wani fasaha ne na dabara. Mg yana buƙatar ƙarin iska mai ƙarfi fiye da aluminium saboda cike da sauri, amma dole ne a sanya filaye da girma don guje wa walƙiya yayin barin iska ta tsere. Sau da yawa, na sha ganin ya mutu a inda bututun iska ya kasance bayan tunani, wanda ke haifar da kona-cikin aljihun iskar gas wanda yayi kama da lahani na sama da lalata high daidaito buƙatun ƙarewar ƙasa. Ma'auni ne tsakanin saurin cikawa da haɓakar iska wanda kawai kuna koya ta hanyar harba abubuwa marasa kyau da farko.
Mun yi haɗin gwiwa tare da kantin kayan aiki akan mutu don ɓangaren mara nauyi mara nauyi. Zane na farko yana da ƙofofin aluminum. Mun ja da baya, muna nacewa kan tsarin ƙofa mai fan tare da ingantacciyar dabarar ambaliya ta musamman ga halayen kwararar Mg. Shagon kayan aikin ya kasance mai shakka-ya fi rikitarwa ga injin. Amma yawan amfanin gona na farko akan sassa masu kyau ya yi tsalle da kashi 40%. Wannan shine aiki mai amfani, mara kyan gani a bayan kalmar.
Machining: Inda Aka Gane Madaidaicin A ƙarshe
Wannan shine inda haɗin gwiwar QSY ke haskakawa. A'a high daidaici magnesium gami mutu simintin gyaran kafa tsari ya cika ba tare da la'akari da machining ba. Casting yana samun 95% a can; CNC machining machining a karshe 5% na daidaici. Amma machining Mg wani dabba ne daban. Ba kamar mashin ƙarfe ba ne ko na tushen nickel da muke ɗauka. Chips na MG suna da ƙonewa, don haka zaɓin sanyi da ƙaurawar guntu suna da mahimmancin aminci. Hakanan ba za ku iya amfani da matsi mai daidaitawa iri ɗaya ba-Mg yana da taushi, don haka zaku karkatar da sashin idan kun matse da ƙarfi, jefa duk daidaitattun simintin ta taga.
Muna tsara kayan aikin simintin gyaran gyare-gyare da na'ura mai sarrafa kayan aiki tare. Za mu iya ƙara ƙanana, sandunan ganowa na hadaya akan simintin gyare-gyare na musamman don CNC vise don kamawa, waɗanda aka niƙa a cikin aikin ƙarshe. Wannan yana tabbatar da cewa ɓangaren an nusar da shi daga bayanan nasa, ba don murƙushewa ba. Wani ƙarin mataki ne, amma ita ce kawai hanyar da za a iya dogaro da kai ga jurewar ± 0.025mm akan gida mai katanga.
Rashin gazawar da muka koya daga: mun taɓa yin injin ɗin busasshen AZ91D don ingantacciyar ƙasa. Ƙunƙarar zafi daga injina, haɗe tare da ƙura mai kyau, ya haifar da haɗarin wuta na kusa. Yanzu, muna amfani da ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙararrawa, mai sanyaya mai ƙarancin ƙarfi wanda ke sarrafa zafi kuma yana danne ƙura ba tare da haifar da lalata a saman injin da aka kera ba. Darasi ya koyi hanya mai wuyar gaske.
Nuances na Material Bayan Takardun Bayanai
AZ91D shine dokin aiki, amma ga gaske mai buƙata high daidaito aikace-aikace, musamman ma inda ake buƙatar juriya mai raɗaɗi ko aikin zafin jiki mafi girma, muna kallon allo kamar AE44 ko ma tweaks na al'ada. Makullin shine sadarwa tare da abokin ciniki game da ainihin yanayin aiki. Shin matsuguni ne na tsaye ko wani yanki mai motsi a ƙarƙashin kaya? Shin zai ga hawan keke na thermal? Amsoshin sun canza shawarar gami kuma, saboda haka, yadda muke daidaita ma'aunin simintin simintin mutuwa da ma'aunin jiyya na zafi.
Misali, wasu allunan sun fi dacewa da micro-porosity a ƙarƙashin wasu ƙimar ƙarfi. Wannan bazai bayyana akan na'urar X-ray ba amma zai haifar da matsala ta ƙarewa a lokacin gyaran fuska mai kyau ko mataki mai kyau daga baya, yana lalata 'daidaitaccen' ado. Mun fara amfani da sa ido na ainihin-lokaci akan injunan simintin mu da ƙarfi, ma'aunin bin diddigi kamar matsa lamba mai ƙarfi da saurin saurin harbi akan bayanan samfurin zinari. Yana nufin ƙirƙirar sa hannu mai maimaitawa ga kowane lambar ɓangaren, ba kawai gudu zuwa daidaitaccen saitin na'ura ba.
Wannan matakin sarrafawa shine abin da ke daidaita kwarewarmu a ciki zuba jari na superalloys-inda tsarin maimaitawa shine addini-zuwa mafi girman girman duniya na Mg die simintin. Ka'idodin sarrafa ƙarfe na ƙarfe suna iya canzawa.
Haƙiƙanin Haɗin Kai Tsakanin Supply
A ƙarshe, samun abin dogaro high daidaici magnesium gami mutu simintin gyaran kafa ba aikin solo ba ne. Yana buƙatar madaidaicin madauki tare da masu samar da albarkatun ƙasa, masu yin mutuwa, da abokan aikin bayan sarrafawa. A QSY, samun simintin gyare-gyare da Injin CNC karkashin rufin daya, kamar yadda aka gani a cikin ayyukanmu a Qingdao Qiangsenyuan Technology Co., Ltd. (https://www.tsingtaocnc.com), yana kawar da babban tushen sauye-sauye. Babu wasan zargi tsakanin gidan wasan kwaikwayo da kantin injin idan an rasa haƙuri. Ƙungiyar da ta jefa ɓangaren ƙungiya ɗaya ce da ke sarrafa shi, don haka madaidaicin amsa yana nan take.
Za mu iya gano rashin yarda da baya zuwa takamaiman lambar harbi, duba sigogin injin daga wannan rukunin, kuma mu daidaita. Wannan haɗin kai na tsaye, wanda aka haɓaka cikin shekaru 30 ɗinmu na yin simintin gyaran kafa da injina, ana iya cewa shine mafi girman abin da ya dace na 'madaidaici'. Yana juya shi daga ƙayyadaddun bege zuwa abin sarrafawa, fitarwa na yau da kullun.
Don haka, lokacin da abokin ciniki ya tunkare mu tare da zane mai cike da juriya kuma yana tambaya idan muka yi 'madaidaicin magnesium mutu simintin', amsata koyaushe, Zamu iya, amma bari muyi magana game da tsarin rayuwar ku gabaɗaya, daga ƙirar mutuwa zuwa dubawa ta ƙarshe. Domin ba a jefa madaidaicin a cikin lokaci guda; an gina ta ta hanyar sarkar ganganci, sarrafawa, kuma sau da yawa maras kyau. Wannan shine ainihin labarin da ke bayan kalmar.
