1 Daim ntawv thov ntawm txhuas alloy hauv kev lag luam automotive
Tam sim no, ntau dua 12% rau 15% ntawm lub ntiaj teb cov kev noj aluminium yog siv los ntawm kev lag luam tsheb, nrog qee lub tebchaws tsim tau tshaj 25%. Xyoo 2002, tag nrho cov kev lag luam hauv European tau noj ntau tshaj 1.5 lab metric tons ntawm aluminium alloy nyob rau hauv ib xyoos. Kwv yees li ntawm 250,000 metric tons tau siv rau lub cev tsim, 800,000 metric tons kev lag luam kev lag luam, thiab ib qho ntxiv 428,000 metric tons tsav tsheb thauj khoom thiab hloov tshuab. Nws yog pom tseeb tias lub tsheb lag luam kev lag luam tau dhau los ua cov neeg siv ntau tshaj plaws ntawm cov ntaub ntawv txhuas.
2 Kev Xav Tau Cov Ntawv Sau Cov Ntawv Cim Rau Cov Ntawv Cim
2.1 Sib sau thiab cov tuag yuav tsum ua rau cov nplooj ntawv txhuas
Cov txheej txheem tsim rau txhuas alloy yog zoo li ntawm cov ntawv txias-dov-dov, nrog rau kev txo cov khoom pov tseg los ntawm kev ntxiv cov txheej txheem. Txawm li cas los xij, muaj qhov sib txawv ntawm cov kev tuag uas tuag rau cov ntawv txias txias.
2.2 Sij hawm ntev ntawm cov nplooj ntawv txhuas
Tom qab kev laus tawv tawv, muaj zog los lub zog ntawm cov ntawv nyeem txhuas nce, txo lawv cov txheej txheem ntug kev ua kom tiav. Thaum ua tuag, txiav txim siab siv cov ntaub ntawv uas ua tau raws li cov kev cai tshaj lij sab sauv thiab kev coj ua tau pom zoo ua ntej kev tsim khoom.
Qhov ncab roj / xeb tiv thaiv cov roj siv rau ntau lawm yog nquag mus rau kev loj hlob. Tom qab qhib daim ntawv ntim, nws yuav tsum tau siv tam sim ntawd lossis ntxuav thiab roj ua ntej Stamping.
Qhov saum npoo yog nquag mus rau 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 cov ntawv nplaum txhuas rau cov nplooj ntawv vuam
Cov txheej txheem vuam tseem ceeb thaum lub rooj sib txoos ntawm Aluminium Alloy lub cev suav nrog kev hloov pauv vuam, tungsten inert roj (riveting, punching, thiab sib tsoo / polishing.
3.1 VUAM PUAM TSIS TAU RIVETING RAU ALUMS
Aluminium ntawv Cheebtsam tsis muaj riveting yog tsim los ntawm txias extrusion ntawm ob lossis ntau txheej ntawm cov hlau nplaum siv cov khoom siv siab thiab cov pwm tshwj xeeb. Cov txheej txheem no tsim embedded kev sib txuas cov ntsiab lus nrog qee lub tensile thiab shear lub zog. Cov tuab tuab ntawm kev sib txuas cov ntawv tuaj yeem yog qhov qub lossis sib txawv, thiab lawv tuaj yeem muaj cov nplaum txheej lossis lwm cov khoom siv sib txawv lossis sib txawv. Cov qauv no ua rau cov kev sib txuas zoo yam tsis muaj kev xav tau ntawm cov ntsuas sib txuas.
3.2 Kuj Vuam
Tam sim no, Alloy Alloy Kuj Vuam feem ntau siv nruab nrab-zaus lossis cov txheej txheem siab tiv thaiv cov txheej txheem vuam. Cov txheej txheem vuam vuam no melts lub hauv paus hlau nyob rau hauv lub taub nyob rau hauv lub sij hawm vuam hluav taws xob hauv lub sijhawm luv luv los ua tus weld pas dej,
Vuam me ntsis txias kom tsim kev sib txuas, nrog tsawg heev ntawm kev tsim cov av txhuas-magnesium hmoov av. Feem ntau ntawm cov kab hlau vuam tsim muaj cov pa oxide los ntawm cov hlau nto thiab cov nplaim taws. Kev tso tawm hauv zos tau muab tso rau thaum lub sij hawm vuam tshem tawm cov khoom siv sai sai, thiab muaj plua plav tsawg kawg ntawm cov hmoov av txhuas-magnesium.
3.3 CMT Cold Transition Vuam thiab Tig Vuam
Ob lub vuam no ua tiav, vim muaj kev tiv thaiv ntawm cov roj inert, tsim cov roj me-hlau nplaum ntawm cov khoom kub. Cov lus no tuaj yeem txaws rau hauv kev ua haujlwm hauv kev ua ntawm arc, tshaj tawm kev pheej hmoo ntawm txhuas-magnesium hmoov av tawg. Yog li ntawd, kev ceev faj thiab kev ntsuas pom rau cov plua plav tiv thaiv thiab kho yog qhov tsim nyog.
4 cov kev xav tau rau txhuas stamping los xij nyob rau hauv ntug dov
Qhov sib txawv ntawm aluminium alloy ntug dov thiab dog dig-dov daim ntawv ntug rolling yog qhov tseem ceeb. Aluminium yog tsawg dua li cov hlau, yog li ntau cov zog yuav tsum tau zam thaum lub zog rolling, thiab lub nrawm yuav tsum qeeb, feem ntau 200-250 hli / s. Txhua qhov dov sab xis yuav tsum tsis pub tshaj 30 °, thiab v-puab dov yuav tsum tau zam.
Qhov kub thiab txias yuav tsum tau rau txhuas alloy dov: nws yuav tsum tau ua ntawm 20 ° C chav tsev kub. Qhov seem coj ncaj qha los ntawm cov khoom txias yuav tsum tsis txhob raug rau ntug dov tam sim ntawd.
5 cov ntawv thiab cov yam ntxwv ntawm ntug dov rau txhuas stamping nplooj ntawv
5.1 Cov ntawv ntawm ntug dov rau txhuas stamping los xij
Cov pa tawg muaj cov kauj ruam peb kauj ruam: pib ua ntej rolling, theem nrab ua ntej-dov, thiab dov, thiab dov kawg. Qhov no feem ntau yog siv thaum tsis muaj lub zog muaj zog thiab cov phaj sab nraud flang nplaum kaum ob lub ces kaum.
Cov European-style muaj plaub kauj ruam: pib ua ntej-dov, thib ob dov, dov, thiab European-style dov. Qhov no feem ntau yog siv rau ntev-ntug dov, xws li pem hauv ntej thiab tom qab npog. Cov pob zeb Europe-style kuj tseem siv tau los txo lossis tshem tawm cov kev tsis zoo saum npoo.
5.2 Cov yam ntxwv ntawm ntug dov rau txhuas stamping nplooj ntawv
Rau txhuas tivthaiv dov cov khoom, hauv qab puab thiab khaws cia kom polished thiab khaws cia tsis tu ncua nrog rau qhov tsis muaj cov txhuam txhuas kom paub tseeb tias tsis muaj qhov chaw txhuas nyob saum npoo.
6 ntau yam ua rau tsis taus tshwm sim los ntawm ntug dov ntawm cov nplooj stamping txhuas stamping
Muaj ntau yam ua rau tsis xws luag los ntawm ntug kev txhuas qhov chaw muaj nyob hauv lub rooj.
7 qhov kev xav tau rau cov txheej txhuas cov txheej txheem txhuas stamping los xij
7.1 Cov hauv paus ntsiab lus thiab kev cuam tshuam ntawm cov dej ntxuav passivation passivation rau txhuas stamping nplooj ntawv
Dej ntxuav cov passus los tshem tawm cov yeeb yaj kiab oxide thiab cov roj ua kom zoo nkauj, tsim cov yeeb yaj kiab acidic, tsim cov yeeb yaj kiab dense oxide rau ntawm qhov chaw ua haujlwm. Cov yeeb yaj kiab oxide, roj stains, vuam, thiab nplaum sib txuas ntawm cov nplaim dej ntawm txhuas qhov tom qab tau cuam tshuam txhua qhov muaj kev cuam tshuam. Txhawm rau txhim kho cov nplaum ntawm cov nplaum thiab cov txheej txheem tshuaj lom neeg yog siv los tswj kev sib txuas ntev ntev thiab ua kom ruaj khov rau saum npoo av, ua tiav zoo dua vuam. Yog li ntawd, qhov uas yuav tsum tau ua laser vuam, txias hlau transitle vuam (CMT), thiab lwm cov txheej txheem vuam yuav tsum tau yauv dej ua ke.
7.2 Txheej Txheem Flow ntawm Dej Ntxuav Passivation Passivation rau txhuas stamping los xij
Cov khoom siv dej ntxuav ua kom cov khoom thauj dhau los ntawm thaj chaw dej ntxuav, thaj chaw ua haujlwm passivation, ib thaj chaw huv si, thiab dej kom qhuav. Cov kab txhuas kom raug kho tau muab tso rau hauv lub pob tawb ntxhua khaub ncaws, tsau, thiab txo qis rau hauv lub tank. Nyob rau hauv cov tso tsheb hlau luam uas muaj cov kuab tshuaj sib txawv, cov feem tau rov qab ua haujlwm nrog txhua yam kev daws teeb meem hauv lub tank. Txhua tus tso tsheb hlau luam tau nruab nrog cov twj tso kua mis ncig thiab ntub kom ntseeg tau tias muaj kev phom sij yaug ntawm txhua qhov chaw. Cov txheej txheem dej ntxuav passivation yog li hauv qab no: degreasing 1 → DEJ Ntxuav 2 → Dej Ntxuav 3 → Dej Ntxuav 5 → Dej Ntxuav 5 → Dej Ntxuav 5 → Dej Kom Qhuav. Aluminium castings tuaj yeem hla dej ntxuav 2.
7.3 cov txheej txheem kom qhuav rau dej ntxuav passivation passivation ntawm txhuas stamping nplooj ntawv
Nws yuav siv li ntawm 7 feeb rau qhov ntsuas kub kom sawv ntawm chav ntsuas kub txog 140 ° C, thiab lub sijhawm kho tsawg kawg nkaus rau cov nplaum yog 20 feeb.
Cov kab txhuas qhov chaw tau tsa los ntawm chav sov mus rau kev tuav kub hauv li 10 feeb, thiab tuav lub sijhawm rau txhuas yog li 20 feeb. Tom qab tuav, nws yog txias los ntawm tus kheej txoj kev kub rau 100 ° C rau li 7 feeb. Tom qab tuav, nws yog txias rau chav kub. Yog li ntawd, tag nrho cov txheej txheem kom qhuav rau txhuas qhov chaw yog 37 feeb.
8 Xaus
Cov tsheb niaj hnub tau nce mus rau lub teeb yuag, kev nyab xeeb, xis, tus nqi qis, thiab lub zog-txuag. Kev txhim kho kev lag luam automotive yog sib txuas zoo rau kev txuag hluav taws xob, ib puag ncig kev tiv thaiv, thiab kev nyab xeeb. Nrog rau kev tiv thaiv ntxiv ntawm kev tiv thaiv ib puag ncig, cov ntaub ntawv txhuas tsis muaj kev sib raug zoo, thiab kev txhim kho kom zoo dua piv rau lwm cov khoom siv. Yog li ntawd, aluminium alloy yuav dhau los ua cov khoom siv hluav taws xob zoo tshaj plaws hauv kev lag luam automotive.
Edited los ntawm May Jiang los ntawm Mat Aluminium
Lub Sijhawm Post: Apr-18-2024
