Aluminium profile ua
Aluminium ua, siv cov txheej txheem yas ua cov txheej txheem aluminium ingots rau hauv cov ntaub ntawv, feem ntau suav nrog dov, extrusion, ncab, thiab forging. Aluminium processing pib tsim muaj nyob rau hauv thaum ntxov 20th caug xyoo, thiab ua ntej xyoo 1930, tooj liab ua cov cuab yeej tsim khoom tau pib siv, nrog cov khoom siv tsuas yog siv hauv aircraft manufacturing. Tom qab xyoo 1960, aluminium ntau lawm tsim tau sai heev, nrog rau kev loj hlob txhua xyoo ntawm kwv yees li 4-8%. Cov khoom siv dav siv hauv kev lag luam xws li aviation, kev tsim kho, kev thauj mus los, hluav taws xob, tshuaj, ntim, thiab cov khoom siv niaj hnub. Cov zis yog thib ob tsuas yog cov hlau thiab qib thib ob hauv cov khoom siv hlau. Nyob rau hauv nruab nrab-1950s, Tuam Tshoj tau tsim ib qho kev cog qoob loo loj heev, tsim ib tug ntau lawm system. Cov khoom tau raug serialized, nrog xya alloy series muaj, muaj peev xwm ua tau yim yam khoom nrog rau cov phaj, strips, foils, cev, tuav, profiles, cov hlau, thiab forgings (dawb forgings, tuag forgings).
Suav npe: Aluminium ua
Cov txheej txheem tseem ceeb suav nrog dov, extrusion, ncab, thiab forging
Lub hom phiaj: Txhawm rau txheej txheem aluminium ingots rau hauv cov ntaub ntawv siv cov txheej txheem yas
Cov khoom yog tsuas yog siv rau aircraft manufacturing
catalog
1 Kev loj hlob
2 Taw qhia
3 Melting thiab Casting
▪ ua kua
▪ casting
- Kev tsim cov ntaub ntawv foil
5 Hlau ntau lawm
6 Forging ntau lawm
7 Lwm yam kev tsim khoom
8 Cov txheej txheem cuam tshuam
txhim kho
tshaj tawm
kho
Los ntawm macro foundations ntawm kev loj hlob ntawm kev lag luam, lub meso foundations ntawm kev lag luam evolution, thiab micro tus cwj pwm ntawm kev txhim kho kev lag luam, peb tau pom tias tam sim no tus qauv ntawm kev lag luam aluminium txav los ntawm thawj electrolytic aluminium smelting mus rau kev sib sib zog nqus ua yuav dhau los ua ib qho kev zam tsis tau.. Aluminium ua cov khoom yog feem ntau luv nqi nyob rau hauv daim ntawv ntawm “aluminium nqi + nqi ua haujlwm”. Thaum muaj kev nce sai hauv cov kev xav tau hauv qab thiab cov qauv kev nce ntxiv, tuam txhab uas muag nrog technology zoo, channel zoo, tus nqi zoo, thiab qhov zoo ntawm qhov chaw tuaj yeem tsis tsuas yog ua kom lawv cov nqi ua haujlwm xwb, tab sis kuj muaj peev xwm nce lawv. Yog ua ke nrog cov peev txheej nthuav dav, kev loj hlob ntawm kev ua tau zoo yuav ceev thiab tseem ceeb.
Hauv xyoo tas los no, Tuam Tshoj txoj kev lag luam aluminium profile tau loj hlob sai thiab tau tsim tag nrho rau hauv kev lag luam sib tw hnyav. Raws li qhov kawg ntawm 2010, muaj 824 aluminium profile tuam txhab saum toj no qhov loj me hauv Suav teb. Tom qab kev loj hlob sai thiab kev sib tw ua lag luam hnyav, cov qauv yooj yim tau coj cov duab. Tam sim no, muaj ntau ntau aluminium ntawv ci kev lag luam hauv Suav teb, nrog qis kev lag luam concentration. Tsis muaj kev lag luam muaj kev lag luam tseem ceeb, tsis muaj peev xwm ua tau ib lub lag luam muaj kev txiav txim siab rau txoj kev loj hlob ntawm tag nrho cov kev lag luam. Hauv 2010, lub teb chaws aluminium foil ntau lawm yog hais txog 2 lab tons, nrog ntau dua 250 cov tuam txhab koom nrog aluminium foil ntau lawm, nrog qhov nruab nrab cov zis ntawm txog 8000 tons. Qhov nruab nrab nplai kuj me me, thiab muaj ntau lub lag luam me, ua rau muaj kev sib tw ntau dhau ntawm cov khoom lag luam uas tsis muaj nqi ntxiv.
Nrog rau kev loj hlob sai ntawm Tuam Tshoj cov hlau qhov rooj thiab qhov rais, tsev ntaub thaiv phab ntsa, kev lag luam kev thauj mus los, kev lag luam tshuaj, khoom siv fais fab kev lag luam, National Defense thiab tub rog kev lag luam, qhov kev thov rau aluminium profiles yuav loj hlob ntxiv. Tib lub sijhawm, cov khoom tshiab, cov txheej txheem tshiab, thiab kev siv tshiab ntawm aluminium profiles yuav tshwm sim ntxiv, txhawb kev txhim kho thev naus laus zis thiab txhim kho kev noj qab haus huv ntawm kev lag luam. Los ntawm 2011 rau 2015, kev lag luam aluminium profile tseem yuav qhia txog kev txhim kho zoo.
Nrog kev loj hlob sai ntawm Tuam Tshoj txoj kev lag luam aluminium profile, cov nyiaj tau los ntawm kev muag khoom ntawm aluminium profile kev lag luam tseem yuav nce xyoo los ntawm xyoo. Raws li cov ntaub ntawv txheeb cais, los ntawm 2005 rau 2010, qhov sib xyaw ua ke txhua xyoo kev loj hlob ntawm cov nyiaj tau los hauv Suav teb kev lag luam aluminium profile yog 35.20%. Raws li kev lag luam hauv tebchaws thiab thoob ntiaj teb tam sim no, ua ke nrog kev muag khoom cov ntaub ntawv ntawm Tuam Tshoj txoj kev lag luam aluminium profile los ntawm 2005 rau 2010 thiab Tuam Tshoj cov ntaub ntawv kev loj hlob ntawm kev lag luam, nws yog kwv yees kwv yees tias qhov sib xyaw ua ke txhua xyoo kev loj hlob ntawm cov nyiaj tau los ntawm Tuam Tshoj txoj kev lag luam aluminium profile los ntawm 2011 rau 2015 yog 20%. Hauv 2015, kev muag khoom ntawm Tuam Tshoj txoj kev lag luam aluminium profile yuav ncav cuag 1.0498 trillion yuan. Nrog rau txoj kev loj hlob sai ntawm kev lag luam downstream ntawm aluminium ntawv ci, nws qhov kev thov rau aluminium ntawv ci yuav nce ntxiv. Los ntawm 2012, kev noj ntawm aluminium ntawv ci yuav ncav cuag 1.8 lab tons, thiab los ntawm 2013 nws yuav ncav cuag 2.1 lab tons, nrog ib tug compound txhua xyoo kev loj hlob tus nqi ntawm 17% los ntawm 2011 rau 2013.
piav qhia luv luv
tshaj tawm
kho
Cov txheej txheem yas ntawm aluminium thiab aluminium alloys yuav tsum xyuas kom meej tias cov khoom ua tiav ruaj khov, zoo ib yam yuav tsum tau dimensional raug, mechanical zog, thiab zoo nto zoo. Kev saib xyuas kuj yuav tsum tau them rau kev tiv thaiv kev puas tsuaj thiab corrosion, tswj grain loj thiab microstructure. Cov kev xav tau zoo no feem ntau tau lees paub los ntawm cov txheej txheem tsim khoom thiab khoom siv. Aluminium thiab nws cov alloys feem ntau muaj cov yas zoo thiab yooj yim rau cov txheej txheem yas. Cov theem muaj pes tsawg leeg ntawm hard aluminium yog complex, nrog nkig lug xws li tsawg melting theem thiab intermetallic tebchaw. Nws cov txheej txheem yas muaj qee yam ntxwv, xws li homogenization kev kho mob kom tshem tawm cov kev ntxhov siab sab hauv thiab intragranular segregation generated thaum lub sij hawm ingot txias; Qhov saum npoo ntawm ingot yuav tsum tau milled kom tshem tawm qhov sib cais los ntawm cov theem qis melting.. Qee cov aluminium alloys kuj yuav tsum tau coated nrog txhuas los txhim kho lawv cov corrosion kuj thiab processability. Aluminium alloy muaj overheating rhiab heev thiab cov cua kub kub yuav tsum tau nruj me ntsis tswj.
Melting casting
tshaj tawm
kho
ua kua
Nws muab ingots rau kev ua cov yas. Smelting furnaces feem ntau siv cov roj los yog roj reflector rauv, nrog lub peev xwm dav dav ntawm 20-40 tons lossis ntau dua; Kuj siv cov cua sov reflex furnaces, nrog lub peev xwm ntawm feem ntau nyob ib ncig ntawm 10 tons. Txhawm rau kom txo lub sijhawm ua haujlwm ntawm lub cub tawg, txhim kho melting efficiency, txo cov pa nqus thiab oxide zaj duab xis entrapment, tilting sab saum toj loading ncig furnaces tau saws nyob rau hauv kev lag luam. Nws yog qhov zoo tshaj plaws los siv cov cuab yeej ntsuas ceev los ntsuas cov alloy muaj pes tsawg leeg thaum melting thiab kho nws raws sijhawm. Los xyuas kom meej lub purity ntawm yaj, tiv thaiv cov pa phem, thiab tswj cov tshuaj muaj pes tsawg leeg, Ntxiv rau qhov shortening lub sij hawm melting kom ntau li ntau tau, Nws raug nquahu kom npog nws nrog cov hmoov flux uas yog tsim los ntawm potassium chloride thiab sodium chloride, nrog rau ib tug dav npaum li cas ntawm 0.4-2% ntawm qhov hnyav ntawm lub cub tawg. Lub melting kub feem ntau yog tswj ntawm 700-750 ℃.
Tom qab melting, Cov hlau yuav tsum tau ua kom zoo dua thiab lim kom tshem tawm cov pa phem xws li hydrogen thiab cov khoom tsis yog hlau., txhawm rau txhim kho cov purity ntawm cov hlau. Refining feem ntau yog siv cov khoom ua kom zoo los yog cov khoom siv roj refining. Cov khoom ua kom zoo dua qub feem ntau yog cov tshuaj chlorides, thiab refining agents siv hexachloroethane es tsis txhob chlorides kuj siv. Thaum ntxov, chlorine gas nrog kev ua haujlwm muaj zog tau siv los ua cov roj refining tus neeg sawv cev. Txawm hais tias cov nyhuv purification tau zoo, nws ua rau muaj kuab paug loj heev. Yog li ntawd, nitrogen chlorine sib xyaw roj, tsis muaj roj, thiab peb gas (N2, Cl 2, CO) refining agents tau tsim nrog cov txiaj ntsig zoo. Los xyuas kom meej cov nyhuv refining, cov pa oxygen thiab noo noo cov ntsiab lus nyob rau hauv cov roj refining feem ntau yuav tsum tsawg dua 0.03% los ntawm ntim thiab 0.3 grams per cubic meter, raws. Lub tshuab nqus tsev dynamic degassing kuj muaj qhov zoo degassing thiab sodium tshem tawm cov teebmeem.
Lim yog txheej txheem ntawm kev hla cov hlau molten los ntawm lub lim ua los ntawm cov khoom nruab nrab lossis cov khoom siv kom tshem tawm cov impurities ntawm cov yaj.. Iav hlau mesh, microporous ceramic raj thiab daim hlau, thiab alumina hais feem ntau yog siv los ua lim txaj rau kev pom. Hluav taws xob flux refining thiab flux txheej pom kuj siv tau.
casting
Casting feem ntau siv ntsug lossis kab rov tav dej-txias semi nruam casting txoj kev. Txhawm rau txhim kho microstructure thiab nto zoo ntawm ntsug casting ingots, electromagnetic crystallization zawj, tsawg crystallization zawj, thiab kub sab saum toj casting txoj kev kuj tau tsim (saib hlau solidification). Cov txheej txheem dej-txias semi nruam casting yog ua kom paub cov hlau ua kua rau hauv cov dej txias crystallizer los ntawm cov dej ntws., tso cai rau cov kua hlau kom txias thiab tsim ib lub plhaub solidified. Lub ingot yog ces rub tawm ntawm lub crystallizer los ntawm lub hauv paus ntawm lub tshuab casting los yog uniformly txo los ntawm nws tus kheej qhov hnyav los ua ib tug billet.. Cov txheej txheem tsis sib txawv heev vim qhov sib txawv ntawm alloy muaj pes tsawg leeg thiab ingot loj. Feem ntau, lub casting ceev thiab txias ceev yuav tsum tau nce ntau npaum li sai tau, thiab qhov siab ntawm lub tank crystallization yuav tsum tau txo. Qhov kub ntawm casting yog feem ntau 50-110 ℃ siab tshaj li cov kua kab ntawm cov hlau. Ntxiv rau, qhov nruam casting thiab dov txheej txheem ntawm txhuas sawb kuj tau tsim.
Phaj thiab sawb ntau lawm adopts tiaj yob dov, nrog cov txheej txheem yooj yim suav nrog kub dov, txias dov, Kev kho cua sov, thiab ua tiav. Rau cov tawv aluminium alloys xws li LY12 thiab LC4 nrog cov tshuaj sib xyaw ua ke, Kev kho homogenization yuav tsum tau nqa tawm ua ntej kub dov. Kev ua haujlwm kub yog feem ntau 10-15 ℃ qis dua qhov kub ntawm eutectic ntawm lub qis melting point theem nyob rau hauv lub alloy, thiab lub sij hawm rwb thaiv tsev yog 12-24 teev. Aluminium cladding ntawm nyuaj aluminium alloy yog ua tiav los ntawm kev muab cov txhuas clad daim hlau rau ntawm ob sab ntawm lub milled ingot thiab siv kub dov vuam.. Lub thickness ntawm txhuas txheej txheej yog feem ntau 4% ntawm lub thickness ntawm cov ntawv hlau. Kub dov feem ntau yog ua los ntawm qhov kub ntawm recrystallization. Kub dov tuaj yeem nqa tawm ntawm ib qho sawv ntsug reversible dov zeb los yog ntawm ntau qhov sawv ntsug rau kev dov tsis tu ncua. Txhawm rau txhim kho cov txiaj ntsig thiab kev tsim khoom ntawm cov ingot loj dov, ingots hnyav 10-15 tons lossis ntau dua yuav tsum tau tsim. Factories uas muaj cov khoom tsim tawm txhua xyoo tsawg dua 100000 tons feem ntau siv plaub yob thim rov qab kub dov thiab txais yuav kub dov tshuab, nrog kub dov strip thickness ntawm txog 6-8 millimeters. Factories nrog lub peev xwm ntau lawm 100000 tons feem ntau txais yuav ib leeg, ob sawv, peb sawv, los yog tsib sawv ntsug rolling tom qab plaub yob reversible kub dov zeb qhib, thiab nqa tawm kub xov dov. Lub thickness ntawm lub sawb tuaj yeem ncav cuag 2.5-3.5 millimeters. Kub dov sawb yog siv los ua ib qho txias-dov yob tom qab tau coiled. Txhawm rau kom pom kev zoo plasticity ntawm cov hlau, kub dov yuav tsum tau nqa tawm nyob rau hauv ib tug ib-theem microstructure xeev. Qhov kub dov kub rau LY11, LY12 thiab lwm yam alloys yog 400-455 ℃. Tus deformation tus nqi ntawm thawj ob peb kis yog feem ntau nyob rau hauv 10%, thiab maj mam nce ntxiv tom qab ntawd. Lub deformation tus nqi ntawm ntshiab aluminium thiab mos aluminium alloys tuaj yeem ncav cuag 50%, thaum uas nyuaj aluminium alloys nyob ib ncig ntawm 40%. Tag nrho cov deformation tus nqi ntawm kub dov tuaj yeem ncav cuag 90%.
Txias dov yog feem ntau nqa tawm ntawm chav tsev kub, thiab nyias daim ntawv thiab strips nrog meej qhov ntev, Cov npoo du thiab tiaj tus tuaj yeem tau los ntawm kev sib tw txias, nrog rau cov ntawv ua haujlwm hardened thiab strips nrog cov khoom tshwj xeeb. Txias dov tsuas yog siv cov txheej txheem kev tsim khoom, siv plaub yob reversible dov mills los yog plaub yob irreversible dov mills rau txias dov. Tam sim no, irreversible dov mills yog tsim los rau txias dov. Rolling zeb yog nruab nrog hydraulic nias, hydraulic dabtsi yog khoov yob, tsis siv neeg thickness tswj system los yog tsis siv neeg thickness tswj system rau ntsuas yob qhov sib txawv, thiab phaj zoo tswj ntsuas ntsuas. Nws yog tswj, kaw tseg, thiab khaws cia los ntawm microcomputer kom tau txais phaj thiab sawb nrog meej qhov ntev thiab cov phaj tiaj tus. Piv txwv li, qhov kam rau ua ntawm 0.18mm strip tuaj yeem ncav cuag ± 5 microns. Cov chaw tsim khoom me kuj siv txoj kev thaiv los tsim cov ntawv hlau. Qhov txias deformation tus nqi ntawm txhuas tom qab annealing tuaj yeem ncav cuag 90%. Multiphase nyuaj aluminium alloy muaj qhov pom tseeb ua haujlwm txias thiab yuav tsum tau nruab nrab annealing. Qhov txias deformation tus nqi tom qab nruab nrab annealing yog 60-70%. Kub dov siv cov tshuaj pleev plhu, thiab txias dov tau tsim los ntawm cov tshuaj pleev ib ce kom puv roj lubrication. Kev siv lub tshuab ua kom txias ntau theem nrog tus kheej tswj cov nozzles kom txo tau kev sib txhuam ntawm txhuas daim hlau thiab cov chais, txias rollers, tswj cov menyuam profiles, ntxuav cov hmoov txhuas thiab lwm yam impurities kom ua tiav cov khoom zoo thiab phaj zoo.
Tom qab txias dov thiab kev kho cua sov, cov sawb feem ntau ua kom zoo dua ntawm lub tshuab yob ncaj los yog ntawm lub tsheb ciav hlau txuas mus ntxiv. Lub tiaj quenched phaj yuav tsum tau ua nyob rau hauv lub aging incubation lub sij hawm, feem ntau ua tiav hauv 30-40 feeb tom qab quenching. Tag nrho cov deformation ntawm quenched phaj thaum lub sij hawm ca calendering yuav tsum tsis txhob ntau tshaj 2%.
Kev vam meej nruam casting thiab dov ntawm txhuas daim hlau thiab strips hauv 1955 tuaj yeem tsim cov phaj nyias thiab aluminium ntawv ci blanks. Tuam Tshoj pib siv txoj kev no los tsim daim hlau nyias nyob rau hauv thaum ntxov 1970s.
Kev tsim cov ntaub ntawv foil
tshaj tawm
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Aluminium ntawv ci tuaj yeem muab faib ua cov ntawv txhuas txhuas thiab ntim cov ntawv txhuas. Muaj aluminium ntawv ci muaj cov tshuaj dawb huv muaj pes tsawg leeg thiab cov tuab ntawm 0.005-0.2 millimeters. Nws yog tsuas yog siv raws li ib tug capacitor, cov khoom siv rwb thaiv tsev, noo noo-pov thawj khoom, lwm. hauv kev lag luam hluav taws xob thiab hluav taws xob. Lub thickness ntawm ntim aluminium foil yog feem ntau 0.007-0.1 millimeters, thiab muaj ntau yam khoom xws li cov ntawv ci, ntawv ci, xim luam ntawv ntawv, thiab laminated aluminium ntawv ci. Nws yog tsuas yog siv los ua cov khoom ntim khoom noj, tshuaj yej, ntawv luam yeeb, lwm. Qhov tsawg kawg nkaus thickness ntawm aluminium ntawv ci tsim los ntawm txoj kev sawb ntau lawm tuaj yeem ncav cuag 0.0025 millimeters, thiab qhov dav tuaj yeem ncav cuag 1800 millimeters. Aluminium foil dov yog seamless dov, thiab cov rollers yeej ib txwm nyob rau hauv ib qho elastic flattened lub xeev. Thaum dov, lub thickness ntawm cov ntawv ci khoom yog tswj los ntawm kev kho lub dov quab yuam, dov ceev, thiab tswj qhov nro. Thaum lub sij hawm ntxhib dov, lub dov quab yuam yog siv los tswj cov thickness ntawm cov ntawv ci; Thaum lub sij hawm precision dov, lub thickness ntawm cov ntawv ci cov ntaub ntawv txo nrog qhov nce ntawm dov ceev; Qhov siab dua, qhov me me thickness; Txhawm rau tiv thaiv kev tawg, qhov nro feem ntau yog xaiv raws li 0.2-0.4 ntawm lub conditional yield zog σ 0.2 ntawm cov ntaub ntawv foil. Thaum qis-ceev dov, “tuab roj” los yog “nyias roj” feem ntau ntxiv rau cov roj lubricating los kho cov dov thickness ntawm aluminium ntawv ci. Lubricants thiab dov zeb tej yam kev mob muaj feem xyuam rau qhov zoo ntawm cov ntaub ntawv foil. Aluminium ntawv ci dawb paug los ntawm txias dov aluminium coils, uas feem ntau yog pre annealed ntawm 340-480 ℃ nrog lub thickness ntawm 0.4-0.7 millimeters. Lub deformation tus nqi thaum dov yog hais txog 50%, thiab tag nrho tus nqi deformation tuaj yeem ncav cuag 95%. Cov ntaub ntawv foil nrog tiav thickness tsawg dua 0.01-0.02 millimeters yuav tsum tau dov ua ke thiab ob txheej txheej.
hlau rod production
tshaj tawm
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Feem ntau yog tsim los ntawm kev siv tshuab ncab. Cov khoom muaj xws li rivet hlau, vuam rods, thiab cov kab. Lub billet yog tsim los ntawm extrusion, dov, los yog nruam casting thiab dov txoj kev. Squeezing txoj kev tsim cov billets nrog siab yooj thiab cov khoom ua tau zoo. Rolling txoj kev thiab nruam casting thiab dov txoj kev yog tsim rau zus tau tej cov billets ntawm ib tug ntau yam alloys, nrog siab ntau lawm efficiency.
Forging ntau lawm
tshaj tawm
kho
Feem ntau siv nyob rau hauv aircraft thiab tshuab manufacturing. Forged qhov chaw muab faib ua dawb forgings thiab tuag forged qhov chaw, thiab lawv cov blanks yog cam khwb cia thiab extruded blanks. Qhov loj tshaj plaws forging hydraulic xovxwm yog 70000 tons, thiab qhov projected cheeb tsam ntawm qhov siab tshaj plaws forging loj yog 4.5 square meters. Qhov tseem ceeb deformation tus nqi ntawm aluminium alloy yog hais txog 5-15%. Kom tsis txhob tsim ntawm coarse nplej, qhov deformation tus nqi ntawm forging feem ntau yuav tsum ntau dua 15%. Txhawm rau txo qis deformation, multi-directional dawb forging feem ntau yog siv.
Lwm yam kev tsim khoom
tshaj tawm
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02:15
Zoo kawg hlau extrusion txheej txheem, cov nyiaj npib loj aluminium ntawv tau ncab mus rau hauv ib 20 centimeter siab aluminium raj mis
Cov txheej txheem ntau lawm rau cov kav dej, tuav, thiab profiles yog thawj zaug siv kub extrusion los ua billets, thiab ces yob (los yog ncab), ua kom tiav, thiab cua sov kho lawv los ua cov khoom tiav. Nws tseem tuaj yeem ua ncaj qha rau hauv cov khoom tiav los ntawm txoj kev kub extrusion, uas tam sim no tau tsim los ntawm luv ingot mus rau ntev ingot extrusion. Raws li lub extrusion siab ntawm lub extruder, ib tug uniform txoj kab uas hla ingot yog siv, thiab ntau yam profiles thiab cov kav dej yog extruded los ntawm cov splitter ua ke tuag thiab tus nplaig tuag. Qhov ntev ntawm cov khoom tuaj yeem ncav cuag ntau dua 60 meters, thiab tom qab stretching thiab straightening, nws yog txiav mus rau hauv qhov yuav tsum tau ntev. Qhov siab tshaj plaws extruder siv rau aluminium ntau lawm yog 20000 tons. Yuav tau extruded rau hauv ribbed hlab nrog ib txoj kab uas hla ntawm 800 millimeters. Architectural profiles yog extruded khoom tsim nyob rau hauv 1960s, accounting rau tshaj 35% ntawm tag nrho cov khoom extruded, ntawm qhov twg 80% yog siv rau lub qhov rooj thiab qhov rais thav ntawv. Yuav luag txhua lub tsev profiles yog ua los ntawm aluminium magnesium silicon alloys (LD30 thiab LD31). Cov khoom no tau txais kev kho mob anodizing thiab xim, tsim ntau yam xim oxide zaj duab xis rau saum npoo, nrog zoo corrosion kuj, ua qhov rooj thiab qhov rais zoo nkauj, ruaj, thiab kaw zoo. Ntxiv rau qhov kub extrusion, txoj kev xws li txias extrusion, isothermal extrusion, residue dawb extrusion, thiab static kua extrusion kuj tau tsim (saib aluminium oxidation coloring).
Aluminium thiab aluminium alloys yog extruded siv rau pem hauv ntej thiab rov qab extrusion txoj kev. Qhov tsim nyog extrusion ceev yuav tsum raug xaiv raws li cov alloys sib txawv. Yuav kom tau txais aluminium alloy extruded khoom nrog lub koom haum zoo thiab kev ua haujlwm zoo, extrusion coefficient (l) ntawm profiles thiab tuav yog ntau dua 8-12 thaum lub sij hawm ib tug extrusion txheej txheem, thiab λ ntawm billets siv rau forging yog ntau dua 5. Lub extrusion tuag muaj qhov cuam tshuam loj rau qhov zoo ntawm cov khoom extruded. Pav ca pwm feem ntau yog siv rau extruding tuav thiab profiles, thaum conical pwm feem ntau siv rau cov kav dej. Hollow profiles thiab cov kav dej nrog cov duab nyuaj yog dav extruded siv splitter ua ke pwm thiab tus nplaig zoo li pwm pwm. Qee tus siv cov kua nitrogen txias extrusion pwm kom ntev pwm lub neej thiab ua kom cov khoom raug. Ib qho pwm tuaj yeem extrude 30 tons ntawm aluminium khoom. Qee cov khoom extruded ntawm aluminium alloys yog nquag “ntxhib grain rings”, uas txhais tau tias tom qab kev kho cua sov, ib txheej ntawm coarse grain cheeb tsam tshwm nyob ib ncig ntawm cov khoom. Kev kub kub extrusion tuaj yeem txo qhov tshwm sim no. Tom qab kev daws teeb meem kev laus kho, qee cov khoom siv aluminium alloy extruded uas tuaj yeem ua kom muaj zog los ntawm kev kho cua sov tau nce lub zog tab sis txo qis plasticity.
Cov yeeb nkab stretching adopts ntau txoj kev ceev thiab nruas stretching. Txoj kab uas hla ntawm lub taub hau txav lub taub hau coil stretching tshuab nruas tuaj yeem ncav cuag 630-2900 millimeters, thiab txoj kab uas hla ntawm cov yeeb nkab stretched dawb paug tuaj yeem ncav cuag 40-50 millimeters. Lub zog stretching ntawm cov yeeb nkab yog 16-18 tons, lub stretching ceev yog 24 meters ib feeb, thiab tus nqi ua yog feem ntau 25-40%. Cov txheej txheem no tuaj yeem tsim cov yeeb nkab ntev txog li 6000 meters.
kev sib raug zoo
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Kev kho cua sov uas ua kom qhov kev ua tau zoo kawg ntawm cov khoom yog hu ua cov khoom tiav kev kho cua sov, suav nrog cov khoom tiav annealing, kev kho mob, quenching, ntuj aging, thiab kev kho mob aging; Ntxiv rau, graded aging thiab deformation cov txheej txheem kho cua sov tau tsim. Kev kho lub sijhawm tsis tsuas yog txhim kho cov khoom siv kho tshuab ntawm cov khoom, tab sis kuj txhim kho nws cov kev ntxhov siab corrosion kuj thiab tawg toughness. Lub sij hawm hloov los ntawm cov cua sov mus rau quenching feem ntau yuav tsum tau tswj nyob rau hauv 30 vib nas this. Qhov cua txias ntawm quenching yuav tsum xyuas kom meej qhov tau txais cov khoom siv supersaturated thaum tsis ua rau muaj kev ntxhov siab ntau dhau thiab khoov deformation hauv cov khoom.. Rolling thiab ntawv hlau yog ua nyob rau hauv lub thawv hom furnaces, zoo hom furnaces, ntsug ntawv hlau nruam annealing rauv, los yog cua cushion nruam annealing furnaces nrog muaj zog ncig qhov cua
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