An bayyana extrusion a matsayin tsarin siffanta abu, kamar aluminum, ta hanyar tilasta shi ya gudana ta hanyar budewa mai siffa a cikin mutu.Abubuwan da aka cire suna fitowa azaman elongated yanki tare da bayanin martaba iri ɗaya kamar buɗewar mutu.
Abu mafi mahimmanci don tunawa a cikin tsarin extrusion shine zafin jiki.Zazzabi ya fi mahimmanci saboda yana ba aluminum halayen da ake so kamar tauri da ƙarewa.
Matakai a cikin aikin extrusion aluminum
1.Billets dole ne a mai tsanani zuwa kusan 800-925 ° F.
2.Bayan billet ya kai zafin da ake so, ana canja shi zuwa mai ɗaukar kaya inda aka ƙara fim ɗin bakin ciki na smut ko mai mai a cikin billet da rago.Smut yana aiki azaman wakili na rabuwa (mai mai) wanda ke kiyaye sassan biyu daga mannewa tare.
3.An canza billet zuwa shimfiɗar jariri.
4.Ragon yana amfani da matsi ga dummy block wanda, bi da bi, yana tura billet har sai ya kasance a cikin akwati.
5.A ƙarƙashin matsin lamba an murƙushe billet ɗin akan mutu, ya zama ya fi guntu kuma ya faɗi har sai ya sami cikakkiyar hulɗa tare da ganuwar ganuwar.Yayin da aka tura aluminum ta cikin mutu, nitrogen ruwa yana gudana a kusa da wasu sassan mutuwar don kwantar da shi.Wannan yana ƙara rayuwar mutun kuma yana haifar da yanayi mara kyau wanda ke hana oxides yin tsari akan siffar da ake fitarwa.A wasu lokuta ana amfani da iskar nitrogen a madadin ruwa nitrogen.Nitrogen gas ba ya sanyaya mutuwa amma yana haifar da yanayi maras amfani.
7.Kamar yadda extrusion ya fita daga latsawa, ana ɗaukar zafin jiki tare da kayan aikin fasaha na gaskiya na Temperature (3T) wanda aka saka a kan farantin jarida.3T yana rikodin zafin fitarwa na aluminum extrusion.Babban manufar sanin zafin jiki shine kiyaye matsakaicin saurin latsawa.Maƙasudin zafin fita don extrusion ya dogara da gami.Misali, zafin ficewar da aka yi niyya don alloys 6063, 6463, 6063A, da 6101 shine 930°F (mafi ƙarancin).Maƙasudin fitowar zafin jiki na alloys 6005A, da 6061 shine 950 ° F (mafi ƙarancin).
8.Extrusions ana turawa daga cikin mutu zuwa teburin jagora da mai jan hankali, wanda ke jagorantar karfe saukar da tebur mai gudu yayin extrusion.Yayin da ake ja, an kwantar da extrusion ta jerin magoya baya tare da dukan tsawon lokacin gudu da kuma sanyaya tebur.(Lura: Alloy 6061 an kashe ruwa kuma an kashe iska.)
9. Ba duk na billet ba za a iya amfani da.Saura (butt) ya ƙunshi oxides daga fatar billet.An yanke guntun kuma a zubar da shi yayin da aka loda wani billet kuma a haɗa shi zuwa wani billet ɗin da aka ɗora a baya kuma ana ci gaba da aiwatar da extrusion. Lokacin da extrusion ya kai tsayin da ake so, an yanke extrusion tare da bayanin martaba ko shear.
10.Metal yana canjawa wuri (ta hanyar bel ko tsarin katako mai tafiya) daga tebur mai gudu zuwa teburin kwantar da hankali.
11.Bayan aluminum ya sanyaya kuma ya motsa tare da tebur mai sanyaya, sa'an nan kuma ya koma wurin shimfiɗa.Mikewa yana daidaita extrusions kuma yana yin 'harshen aiki' (sake daidaita kwayoyin halitta wanda ke ba da ƙãra taurin aluminum da ingantaccen ƙarfi).
12.The gaba mataki ne sawing.Bayan an shimfiɗa extrusions an tura su zuwa teburin gani kuma a yanke su zuwa takamaiman tsayi.Haƙurin yankewa akan saws shine 1/8 inch ko mafi girma, dangane da tsayin gani.
Bayan an yanke sassan, an ɗora su a kan na'urar sufuri kuma a motsa su cikin tanda na zamani.Maganin zafi ko tsufa na wucin gadi yana taurare ƙarfe ta hanyar hanzarta tsarin tsufa a cikin yanayin yanayin zafin da aka sarrafa don adadin lokaci.
Lokacin aikawa: Yuni-23-2016