1 Daim ntawv thov ntawm aluminium alloy hauv kev lag luam tsheb
Tam sim no, ntau dua 12% mus rau 15% ntawm lub ntiaj teb kev siv txhuas yog siv los ntawm kev lag luam tsheb, nrog rau qee lub tebchaws tsim tawm ntau dua 25%. Nyob rau hauv 2002, tag nrho cov European automotive kev lag luam tau noj ntau tshaj 1.5 lab metric tons ntawm txhuas alloy nyob rau hauv ib xyoos. Kwv yees li ntawm 250,000 metric tons tau siv rau kev tsim lub cev, 800,000 metric tons rau kev tsim tsheb sib kis tau zoo, thiab ntxiv 428,000 metric tons rau kev tsim tsheb tsav thiab ncua kev kaw lus. Nws yog pov thawj tias kev lag luam tsheb tsim khoom tau dhau los ua cov neeg siv khoom loj tshaj plaws ntawm cov khoom siv txhuas.
2 Kev Yuav Tsum Tau Ua rau Aluminium Stamping Sheets hauv Stamping
2.1 Kev tsim thiab tuag yuav tsum tau rau cov ntawv txhuas
Cov txheej txheem tsim rau aluminium alloy zoo ib yam li cov ntawv txias txias-kuav los tiag, nrog rau kev txo cov khoom pov tseg thiab cov khoom siv txhuas los ntawm kev ntxiv cov txheej txheem. Txawm li cas los xij, muaj qhov sib txawv ntawm qhov yuav tsum tau tuag piv rau cov ntawv txias-dov.
2.2 Lub Sijhawm Teev Tseg ntawm Cov Ntawv Txhuas Txhuas
Tom qab aging hardening, lub zog tawm los ntawm txhuas ntawv nce, txo lawv cov ntug-forming processability. Thaum ua tuag, xav txog kev siv cov ntaub ntawv uas ua tau raws li qhov yuav tsum tau ua ntawm sab sauv thiab ua qhov kev pom zoo ua ntej tsim khoom.
Cov roj stretching / xeb tiv thaiv cov roj siv rau kev tsim khoom yog nquag mus rau volatilization. Tom qab qhib cov ntawv ntim, nws yuav tsum tau siv tam sim ntawd los yog ntxuav thiab oiled ua ntej stamping.
Qhov saum npoo yog nquag oxidation thiab yuav tsum tsis txhob muab cia rau hauv qhov qhib. Kev tswj tshwj xeeb (ntim) yuav tsum muaj.
3 Cov Kev Xav Tau rau Aluminium Stamping Sheets hauv Vuam
Lub ntsiab welding txheej txheem thaum lub sij hawm sib dhos ntawm aluminium alloy lub cev muaj xws li tsis kam vuam, CMT txias hloov vuam, tungsten inert gas (TIG) vuam, riveting, xuas nrig ntaus, thiab sib tsoo / polishing.
3.1 Vuam yam tsis muaj Riveting rau cov ntawv txhuas
Aluminium ntawv cov khoom tsis muaj riveting yog tsim los ntawm txias extrusion ntawm ob lossis ntau txheej ntawm cov ntawv hlau siv cov khoom siv siab thiab cov pwm tshwj xeeb. Cov txheej txheem no tsim cov ntsiab lus sib txuas nrog qee qhov tensile thiab shear zog. Lub thickness ntawm cov ntawv txuas tuaj yeem yog tib yam lossis sib txawv, thiab lawv tuaj yeem muaj cov nplaum nplaum lossis lwm cov txheej txheem nruab nrab, nrog cov ntaub ntawv zoo ib yam lossis txawv. Txoj kev no tsim cov kev sib txuas zoo yam tsis tas yuav tsum muaj cov khoom sib txuas.
3.2 Resistance Vuam
Tam sim no, aluminium alloy kuj welding feem ntau siv nruab nrab zaus los yog high-frequency resistance vuam txheej txheem. Cov txheej txheem vuam no melts lub hauv paus hlau nyob rau hauv txoj kab uas hla ntawm lub vuam electrode nyob rau hauv ib tug luv luv lub sij hawm los tsim ib tug weld pas dej ua ke,
welding qhov chaw txias sai sai rau kev sib txuas, nrog tsawg kawg ntawm kev tsim cov hmoov txhuas-magnesium. Feem ntau ntawm cov welding fumes uas tsim muaj oxide hais los ntawm cov hlau nto thiab nto impurities. Kev tso pa tawm hauv zos tau muab thaum lub sijhawm vuam kom tshem tawm cov khoom no sai sai rau hauv cov huab cua, thiab muaj qhov tso tawm tsawg kawg ntawm aluminium-magnesium hmoov av.
3.3 CMT Cold Transition Vuam thiab TIG Vuam
Ob txoj kev vuam no, vim yog kev tiv thaiv ntawm inert gas, tsim me me aluminium-magnesium hlau hais nyob rau hauv high kub. Cov khoom no tuaj yeem txaws rau hauv qhov chaw ua haujlwm raws li qhov kev txiav txim ntawm arc, ua rau muaj kev pheej hmoo ntawm txhuas-magnesium plua plav tawg. Yog li ntawd, kev ceev faj thiab kev ntsuas rau kev tiv thaiv plua plav tawg thiab kev kho mob yog tsim nyog.
4 Cov Kev Xav Tau rau Aluminium Stamping Sheets hauv Ntug Rolling
Qhov sib txawv ntawm aluminium alloy ntug dov thiab zoo tib yam txias dov daim ntawv ntug dov yog qhov tseem ceeb. Aluminium tsis tshua muaj ductile dua hlau, yog li yuav tsum tau zam lub siab ntau dhau thaum dov, thiab dov ceev yuav tsum qeeb, feem ntau 200-250 mm / s. Txhua lub kaum sab xis yuav tsum tsis pub tshaj 30 °, thiab V-shaped dov yuav tsum zam.
Kev ntsuas kub rau aluminium alloy dov: Nws yuav tsum tau nqa tawm ntawm 20 ° C chav tsev kub. Cov khoom siv ncaj qha los ntawm kev cia txias yuav tsum tsis txhob raug rau ntawm ntug dov tam sim ntawd.
5 Cov ntawv thiab cov yam ntxwv ntawm Ntug Rolling rau Aluminium Stamping Sheets
5.1 Daim Ntawv Ntug Rolling rau Aluminium Stamping Sheets
Pa rolling muaj peb kauj ruam: pib ua ntej dov, theem nrab pre-rolling, thiab zaum kawg dov. Qhov no feem ntau yog siv thaum tsis muaj qhov tshwj xeeb yuav tsum tau muaj zog thiab cov phaj sab nraud flange cov ces kaum yog qhov qub.
European-style dov muaj plaub theem: pib ua ntej dov, theem nrab pre-rolling, kawg dov, thiab European-style dov. Qhov no feem ntau yog siv rau ntev-ntug dov, xws li pem hauv ntej thiab nram qab npog. European-style dov kuj tuaj yeem siv los txo lossis tshem tawm qhov tsis xws luag.
5.2 Yam ntxwv ntawm Ntug Rolling rau Aluminium Stamping Sheets
Rau cov khoom siv aluminium dov, cov pwm hauv qab thiab ntxig thaiv yuav tsum tau polished thiab khaws cia tsis tu ncua nrog 800-1200# sandpaper los xyuas kom meej tias tsis muaj txhuas seem nyob rau saum npoo.
6 Ntau yam ua rau muaj teeb meem tshwm sim los ntawm Ntug Rolling ntawm Aluminium Stamping Sheets
Ntau yam ua rau muaj qhov tsis xws luag tshwm sim los ntawm ntug dov ntawm aluminium qhov chaw yog qhia nyob rau hauv lub rooj.
7 Cov Kev Xav Tau rau Txheej Txhuas Stamping Sheets
7.1 Cov Ntsiab Cai thiab Cov Teeb Meem ntawm Dej Ntxuav Passivation rau Aluminium Stamping Sheets
Dej ntxuav passivation yog hais txog kev tshem tawm cov oxide zaj duab xis thiab cov roj stains rau ntawm qhov chaw ntawm txhuas, thiab los ntawm cov tshuaj tiv thaiv ntawm aluminium alloy thiab cov kua qaub, tsim kom muaj oxide zaj duab xis ntom ntom ntawm qhov chaw ua haujlwm. Cov oxide zaj duab xis, roj stains, vuam, thiab nplaum nplaum rau ntawm qhov chaw ntawm aluminium tom qab stamping tag nrho muaj kev cuam tshuam. Txhawm rau txhim kho cov adhesion ntawm cov nplaum thiab welds, cov txheej txheem tshuaj siv los tswj cov nplaum sib txuas ntev ntev thiab ua haujlwm ruaj khov ntawm qhov chaw, ua tiav vuam zoo dua. Yog li ntawd, qhov yuav tsum tau laser vuam, txias hlau hloov vuam (CMT), thiab lwm yam vuam txheej txheem yuav tsum tau undergo dej ntxuav passivation.
7.2 txheej txheem ntws dej ntxuav Passivation rau Aluminium Stamping Sheets
Cov cuab yeej siv dej ntxuav dej muaj xws li thaj chaw degreasing, thaj chaw ntxhua dej hauv tsev, thaj chaw passivation, thaj chaw ntxuav dej huv, thaj chaw ziab, thiab qhov tso pa tawm. Cov txhuas qhov chaw yuav tsum tau kho yog muab tso rau hauv lub pob tawb ntxhua, tsau, thiab qis rau hauv lub tank. Hauv cov tso tsheb hlau luam uas muaj cov kuab tshuaj sib txawv, cov khoom tau rov qab yaug nrog txhua qhov kev daws teeb meem hauv lub tank. Tag nrho cov tso tsheb hlau luam tau nruab nrog cov twj tso kua mis thiab cov nozzles kom ntseeg tau tias kev sib xyaw ua ke ntawm txhua qhov chaw. Cov txheej txheem ntxuav dej ntws yog raws li hauv qab no: degreasing 1 → degreasing 2 → dej ntxuav 2 → dej ntxuav 3 → passivation → dej ntxuav 4 → dej ntxuav 5 → dej ntxuav 6 → ziab. Aluminium castings tuaj yeem hla dej ntxuav 2.
7.3 Cov txheej txheem ziab rau dej ntxuav Passivation ntawm Aluminium Stamping Sheets
Nws yuav siv li ntawm 7 feeb rau qhov kub thiab txias ntawm chav tsev mus rau 140 ° C, thiab lub sij hawm kho yam tsawg kawg nkaus rau cov nplaum yog 20 feeb.
Aluminium qhov chaw tau tsa los ntawm chav tsev kub mus rau qhov ntsuas kub hauv li 10 feeb, thiab lub sijhawm tuav ntawm txhuas yog li 20 feeb. Tom qab tuav, nws yog txias los ntawm tus kheej-tuav kub mus rau 100 ° C rau li 7 feeb. Tom qab tuav, nws yog txias rau chav tsev kub. Yog li ntawd, tag nrho cov txheej txheem ziab rau txhuas qhov chaw yog 37 feeb.
8 Kev xaus
Cov tsheb niaj hnub no tau nce mus rau lub teeb yuag, kev kub ceev, nyab xeeb, xis nyob, tus nqi qis, qis qis, thiab cov lus qhia siv zog. Txoj kev loj hlob ntawm kev lag luam automotive yog ze rau kev siv hluav taws xob, kev tiv thaiv ib puag ncig, thiab kev nyab xeeb. Nrog rau kev paub txog kev tiv thaiv ib puag ncig, cov ntaub ntawv aluminium ntawv muaj qhov zoo sib xws hauv cov nqi, kev siv tshuab, kev ua haujlwm zoo, thiab kev tsim kho kom ruaj khov piv rau lwm cov khoom siv hnyav. Yog li ntawd, aluminium alloy yuav dhau los ua cov khoom siv hnyav dua hauv kev lag luam tsheb.
Kho los ntawm May Jiang los ntawm MAT Aluminium
Lub sij hawm xa tuaj: Plaub Hlis-18-2024
