The 7000 series aluminium alloy ke motsoako oa aluminium o matlafalitsoeng o ka phekolehang ka mocheso o nang le zinki e le karolo ea mantlha ea alloy. 'Me likarolo tsa tlatsetso joalo ka magnesium le koporo li e fa melemo e meraro ea mantlha: matla a phahameng, boima bo bobebe le ho hanyetsa kutu. Thepa ena e etsa hore e sebetse haholo masimong a nang le litlhoko tse thata tsa ts'ebetso ea thepa. Khamphani ea rona e shebane le ho fana ka lihlahisoa tsa boleng bo holimo tsa 7000 tsa aluminium alloy, ho kenyeletsoa poleiti ea aluminium, molamu oa aluminium, tube ea aluminium le machining, tseo kaofela li ka etsoang ho latela litlhoko tsa hau.
Hona joale re u fa tlhaloso e qaqileng le e felletseng ea litšobotsi tsa mantlha le boholo ba ts'ebeliso ea7000 letoto la motsoako oa aluminium.
I. Litšobotsi tsa Ts'ebetso
Matla a Phahameng
Ka mor'a phekolo e nepahetseng ea mocheso, 7000 series aluminium alloy e ka finyella matla a phahameng ka ho fetisisa, e leng se etsang hore e be mofuta o matla ka ho fetisisa oa motsoako oa aluminium o teng hona joale. Mohlala, motsoako oa 7075 oa aluminium o na le matla a ho tiea a ka bang 560MPa le matla a tlhahiso a ka bang 500MPa. Boemo bona ba matla bo fana ka melemo e mengata ea ho etsa likarolo tsa sebopeho se hlokang ho jara meroalo e boima. Thepa e matla e phahameng e bakoa ke phello ea synergistic ea likarolo tse ngata tsa motsoako. Lintho tse kang zinki, magnesium le koporo li etsa mekhahlelo e matlafatsang nakong ea phekolo ea tharollo le mekhoa ea botsofali, kahoo e matlafatsa matla a alloy haholo.
Khahlanong le Mokhathala o Khabane
Ha e le tlas'a meroalo e fapa-fapaneng khafetsa, 7000 series aluminium alloy e ka boloka ts'ebetso e tsitsitseng ea sebopeho, ka katleho e fokotsa kotsi ea ho robeha ha mokhathala. Thepa ena e etsa hore e tšoanelehe haholo bakeng sa likarolo tsa sepakapaka tse tlas'a khatello ea nako e telele, joalo ka likere tse thellang sefofaneng le li-spars tsa mapheo. Ho hanyetsa mokhathala oa eona ho rua molemo ho tsoa ho likarolo tse nyane tsa alloy. Lithollo tse ts'oanang le tse ntle, hammoho le mekhahlelo e matlafatsang e hasaneng, li ka sitisa ho qala le ho ata ha mapetsong, ka hona ho eketsa bophelo ba mokhathala oa thepa.
Ho Hanyetsa Corrosion e Itekanetseng
The corrosion resistance of the7000 letoto la motsoako oa aluminiume tlase hanyane ho feta ea 5000 series aluminium alloy (e sebelisang magnesium e le motsoako o ka sehloohong oa motsoako 'me e na le khanyetso e ntle ea kutu), e oela sehlopheng se itekanetseng. Libakeng tse senyang joalo ka maemo a mongobo le a letsoai, motsoako oa 7000 oa aluminium o tloaetse ho bola ntle le kalafo e nepahetseng ea bokaholimo. Leha ho le joalo, ka lits'ebetso tsa kalafo ea holim'a metsi joalo ka anodizing, penta le electroplating, khanyetso ea eona ea kutu e ka matlafatsoa haholo, ea e nolofalletsa ho fihlela litlhoko tsa ts'ebeliso libakeng tse fapaneng tse rarahaneng.
Machinability le Weldability
The 7000 series aluminium alloy e na le machinability e itseng 'me e ka thehoa ho sebelisoa mekhoa e fapaneng ea ho sebetsa e kang ho forging, extrusion le rolling. Leha ho le joalo, ha ho bapisoa le 6000 series aluminium alloy (e sebelisang magnesium le silicon e le metsoako ea mantlha ea motsoako 'me e na le ts'ebetso e ntle ea ts'ebetso), 7000 series alloy alloy e thata haholo ho sebetsa 'me e hloka lisebelisoa tse thata tsa ho sebetsa le mekhoa ea ho sebetsa. Mabapi le ho tjheseletsa, 7000 letoto la aluminium alloy e na le ts'ebetso e mpe. Nakong ea ts'ebetso ea ho cheselletsa, ho ka etsahala hore ho be le liphoso tse kang mapetsong le li-pores, tse hlokang ho sebelisoa ha mekhoa e khethehileng ea ho tjheseletsa le lisebelisoa tsa ho tlatsa ho netefatsa boleng ba manonyeletso a cheselitsoeng.
II. Mekhoa ea Phekolo ea Mocheso
Ts'ebetso ea 7000 letoto la aluminium alloy e itšetlehile haholo ka mekhoa ea phekolo ea mocheso. Mekhoa e tloaelehileng ea phekolo ea mocheso e kenyelletsa phekolo ea tharollo, ho tima, le phekolo ea botsofali.
Phekolo ea Tharollo
The 7000 series aluminium alloy e futhumetse mocheso o itseng ho qhaqha ka ho feletseng mekhahlelo e matlafatsang ka har'a matrix, ho etsa tharollo e tiileng e ts'oanang. Ts'ebetso ena e ka ntlafatsa polasetiki ea alloy le ho tiea, ho rala motheo oa kalafo e latelang ea botsofali. Thempereichara le nako ea phekolo ea tharollo li hloka ho laoloa ka nepo ho netefatsa hore mekhahlelo ea ho matlafatsa e qhibilihisoa ka ho feletseng le ho qoba likoli tse kang ho chesa ho feta tekano.
Ho tima
Ka mor'a phekolo ea tharollo, motsoako oa aluminium o pholile ka potlako ho thibela mekhahlelo e matlafatsang hore e se ke ea theoha, kahoo e boloka boemo bo tiileng ba tharollo mochesong o phahameng. Sekhahla sa ho pholisa nakong ea ho tima se ama haholo ts'ebetso ea alloy. Ho potlaka haholo sekhahla sa ho pholisa se ka baka khatello e kholo ea kahare ka har'a alloy, esita le ho lebisa ho deformation le mapetsong; ho lieha haholo ho fokotsa sekhahla ho tla etsa hore mekhahlelo e matlafatsang e fokotsehe pele ho nako, ho fokotsa phello e matlafatsang ea alloy.
Kalafo ea Botsofali
Motsoako oa aluminium o tingoeng o boemong bo bonolo. Ka phekolo ea botsofali (e arotsoe ka botsofali ba tlhaho le botsofali ba maiketsetso), e bolokoa ka mocheso o itseng ka nako e itseng, ho lumella liathomo tsa solute supersaturated ka tharollo e tiileng hore butle-butle li fokotsehe 'me li thehe mekhahlelo e matlafatsang e qhalakantsoeng, ka tsela eo, ho eketsa matla le ho thatafala ha motsoako. Botsofali ba tlhaho bo etsahala ka mocheso oa kamore. Le hoja ts'ebetso ea botsofali e lieha, e ka finyella tshebetso e ntlafetseng e pharaletseng. Ka lehlakoreng le leng, botsofali ba maiketsetso bo etsoa ka mocheso o phahameng, ka lebelo la ho tsofala ka potlako le ka fihlang kapele ho matla a hlokahalang. Leha ho le joalo, e ka ba le tšusumetso e itseng ho tiea ha motsoako.
III. Mephato e Tloaelehileng ka ho Fetisisa le Libaka tsa Kopo
7075 Aluminium Alloy
Aluminium alloy ea 7075 ke e 'ngoe ea limaraka tsa pele le tse sebelisoang haholo lelapeng la 7000 letoto la aluminium alloy. Ka lebaka la matla a eona a phahameng le ho tiea ha eona, hangata e sebelisoa ha ho etsoa likarolo tse ka sehloohong tse jarang meroalo ea lifofane, tse kang li-spars tse mapheong, liforeimi tsa fuselage le likere tse thellang. Lefapheng la lifofane, tšebeliso ea 7075 aluminium alloy e na le histori e telele 'me e entse tlatsetso ea bohlokoa ho nts'etsopele ea lifofane tse bobebe le tse phahameng. Ho feta moo, the7075 aluminium motsoakoe boetse e sebelisoa lisebelisoa tsa lipapali tsa boemo bo phahameng, tse kang liforeimi tsa libaesekele le lihlopha tsa kolofo, ho finyella litlhoko tsa barati ba lipapali bakeng sa lisebelisoa tse matla le tse bobebe.
7050 Aluminium Alloy
7050 aluminium alloy e na le moralo o ntlafalitsoeng oa sebopeho. Zirconium (Zr) e sebelisoa sebakeng sa chromium (Cr) ho hloekisa lijo-thollo, ha e ntse e eketsa dikahare tsa koporo (Cu) le ho lokisa tekanyo ea boima ba zinki (Zn) ho magnesium (Mg). Sena se e fa matla a phahameng, e thibela ho bola ha khatello ea maikutlo, le ho ba le fracture e thata. Sebakeng sa sefofane, motsoako oa 7050 oa aluminium o sebelisitsoe ka katleho ho likarolo tsa bohlokoa tsa sebopeho sa lifofane tsa ntoa tsa F/A - 18 le lifofane tsa Boeing 777, tse kang li-spars tsa mapheo le liforeimi tsa fuselage. Ho feta moo, motsoako oa 7050 oa aluminium o ntse o sebelisoa butle-butle litereneng tsa lebelo le phahameng, indasteri ea likoloi, le mafapha a mang ho etsa lisebelisoa tse hlokang ho mamella meroalo e meholo le likhatello tse rarahaneng.
Ka tsoelo-pele e potlakileng ea liindasteri tse kang sefofane, tšireletso ea naha le sesole, le tlhahiso ea thepa e phahameng ea ho qetela, litlhoko tse phahameng li behoa ts'ebetsong ea li-alloys tsa aluminium tse 7000. Nakong e tlang, nts'etsopele ea li-alloys tsa 7000 tsa aluminium li tla fetela matla a holimo, ho tiea ho hoholo, ho hanyetsa kutu ho betere, le ts'ebetso e phethahetseng e felletseng. Ka ho ntlafatsa moralo oa motsoako oa motsoako, ho ntlafatsa mekhoa ea phekolo ea mocheso le mahlale a kalafo ea holim'a metsi, le ho nts'etsapele mekhoa e mecha ea ts'ebetso le mekhoa ea tlhahiso, ts'ebetso le boleng ba li-alloys tsa 7000 letoto la aluminium li tla ntlafatsoa khafetsa ho fihlela litlhoko tse ntseng li hola tsa kopo e phahameng. Joaloka morekisi ea ka sehloohong oa aluminium alloy indastering, ha re fane feela ka lipoleiti tsa aluminium tsa boleng bo holimo tsa 7000, mekoallo le li-tubes empa hape re na le lisebelisoa tse tsoetseng pele joalo ka litsi tsa machining tsa CNC, lathes ea CNC, le metjhini e nepahetseng ea ho sila. Re ts'ehetsa ts'ebeletso ea ts'ebetso e felletseng ho tloha phepelong ea thepa ho isa ho ts'ebetso ea sehlahisoa se felileng ho netefatsa hore lihlahisoa tse fanoeng li fihlella litekanyetso tse thata. Ikopanye le rona hona joale ho fumana litharollo tse ikhethileng bakeng sa li-alloys tsa aluminium tse 7000!
Nako ea poso: Jun-03-2025