1 Kev Taw Qhia
Nrog rau txoj kev loj hlob sai ntawm kev lag luam txhuas thiab kev nce ntxiv hauv tonnage rau txhuas extrusion tshuab, thev naus laus zis ntawm porous pwm aluminium extrusion tau tshwm sim. Porous pwm aluminium extrusion zoo heev txhim kho kev tsim khoom ntawm extrusion thiab tseem tso cov kev xav tau ntau dua ntawm pwm tsim thiab txheej txheem extrusion.
2 txheej txheem Extrusion
Qhov cuam tshuam ntawm cov txheej txheem extrusion ntawm qhov ua tau zoo ntawm cov ntxeem tau pwm aluminium extrusion yog feem ntau cuam tshuam los ntawm kev tswj peb yam: qhov kub thiab txias, pwm kub, thiab kub tawm.
2.1 Qhov kub thiab txias
Uniform qhov kub thiab txias muaj qhov cuam tshuam loj rau cov khoom siv extrusion. Hauv kev tsim khoom tiag tiag, cov tshuab extrusion uas ua rau cov xim tsis zoo yog feem ntau rhuab siv ntau qhov cub tawg. Multi-blank furnaces muab ntau qhov sib xws thiab cov cua sov kom zoo nrog cov khoom zoo rwb thaiv tsev. Tsis tas li ntawd, txhawm rau txhawm rau ua kom muaj txiaj ntsig zoo, txoj kev "tsis tshua muaj kub thiab kub ceev" yog feem ntau ua haujlwm. Nyob rau hauv cov ntaub ntawv no, qhov kub thiab txias tawm yuav tsum tau zoo sib xws rau lub extrusion ceev, nrog rau cov kev nqis tes ua coj mus rau hauv tus account hloov nyob rau hauv extrusion siab thiab qhov chaw ntawm qhov dawb paug. Qhov kub thiab txias yog nyob ntawm qhov tseeb ntawm cov khoom tsim, tab sis raws li cov lus qhia dav dav, rau qhov ntxeem tau pwm extrusion, qhov kub thiab txias yog feem ntau khaws cia ntawm 420-450 ° C, nrog cov tuag tiaj tus tau teem me ntsis siab dua los ntawm 10-20 ° C piv rau kev sib cais tuag.
2.2 Pwm Kub
Raws li kev tsim khoom ntawm qhov chaw, pwm kub yuav tsum tau khaws cia ntawm 420-450 ° C. Lub sijhawm cua sov ntau dhau tuaj yeem ua rau pwm yaig thaum ua haujlwm. Tsis tas li ntawd, kev tso pwm kom raug thaum cua sov yog qhov tseem ceeb. Cov pwm yuav tsum tsis txhob muab tso ua ke ze heev, tawm hauv qee qhov chaw ntawm lawv. Thaiv lub qhov hluav taws xob ntawm cov pwm pwm los yog qhov chaw tsis raug tuaj yeem ua rau cov cua sov tsis sib xws thiab tsis sib xws extrusion.
3 Pwm yam
Pwm tsim, pwm ua, thiab kev saib xyuas pwm yog qhov tseem ceeb rau extrusion shaping thiab ncaj qha cuam tshuam cov khoom nto zoo, qhov tseeb qhov tseeb, thiab kev ua haujlwm ntau lawm. Kev kos duab los ntawm kev coj ua ntau lawm thiab sib koom kev tsim pwm tsim, cia peb txheeb xyuas cov yam no.
3.1 Pwm Tsim
Pwm yog lub hauv paus ntawm cov khoom tsim thiab ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab cov duab, qhov tseeb, qhov zoo ntawm qhov chaw, thiab cov khoom siv ntawm cov khoom. Rau cov porous pwm profiles nrog cov kev xav tau saum npoo siab, kev txhim kho saum npoo zoo tuaj yeem ua tiav los ntawm kev txo tus naj npawb ntawm qhov sib txawv thiab ua kom zoo dua qhov kev tso kawm ntawm kev sib tw txuas hniav kom tsis txhob muaj lub ntsiab zoo nkauj ntawm qhov profile. Tsis tas li ntawd, rau lub tiaj tus tuag, siv qhov rov qab ntws qhov tsim tuaj yeem ua kom cov hlau tsis sib xws rau hauv cov kab noj hniav tuag.
3.2 Pwm ua
Thaum lub sij hawm ua pwm, txo qhov tsis kam ntawm cov hlau ntws ntawm cov txuas hniav yog qhov tseem ceeb heev. Milling txoj kev sib tw txuas hniav kom ntseeg tau tias qhov tseeb ntawm txoj haujlwm ntawm txoj kev sib tw choj thiab pab ua kom tiav cov hlau tsis sib xws. Rau cov ntaub ntawv uas yuav tsum tau ua kom zoo, xws li cov hnub ci vaj huam sib luag, xav txog qhov siab ntawm lub vuam chamber los yog siv cov txheej txheem vuam thib ob kom ntseeg tau tias cov txiaj ntsig zoo.
3.3 Pwm Kho
Kev tu pwm tsis tu ncua yog qhov tseem ceeb sib npaug. Polishing cov pwm thiab ua raws li kev saib xyuas nitrogenization tuaj yeem tiv thaiv cov teeb meem xws li qhov tsis sib xws ntawm qhov ua haujlwm ntawm cov pwm.
4 Qhov Zoo Tshaj Plaws
Qhov zoo ntawm qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Cov khoom tsis zoo tuaj yeem ua rau muaj teeb meem zoo xws li grooves, discoloration tom qab oxidation, thiab txo pwm lub neej. Cov khoom tsis zoo suav nrog cov muaj pes tsawg leeg thiab kev sib txuam ntawm cov ntsiab lus, ob qho tib si cuam tshuam ncaj qha rau extrusion tso zis thiab nto zoo.
4.1 Composition Configuration
Siv lub hnub ci vaj huam sib luag profile ua piv txwv, kev teeb tsa zoo ntawm Si, Mg, thiab Fe hauv kev tshwj xeeb 6063 alloy rau porous pwm extrusion yog qhov tseem ceeb rau kev ua tiav qhov zoo tshaj plaws saum npoo yam tsis muaj kev cuam tshuam cov khoom siv kho tshuab. Tag nrho cov nyiaj thiab kev faib ua feem ntawm Si thiab Mg yog qhov tseem ceeb, thiab raws li kev tsim khoom mus sij hawm ntev, tswj Si + Mg nyob rau hauv thaj tsam ntawm 0.82-0.90% yog qhov tsim nyog kom tau txais cov khoom zoo.
Hauv kev tshuaj xyuas ntawm qhov tsis ua raws li qhov tsis raug cai rau cov hnub ci vaj huam sib luag, nws tau pom tias cov kab lus thiab cov impurities tsis ruaj khov lossis dhau qhov txwv, cuam tshuam rau qhov zoo ntawm qhov chaw. Kev sib ntxiv ntawm cov ntsiab lus thaum lub sij hawm alloying nyob rau hauv lub khw melting yuav tsum tau ua nrog kev saib xyuas kom tsis txhob muaj kev ruaj ntseg los yog ntau tshaj ntawm cov kab. Hauv kev lag luam kev faib khoom pov tseg, extrusion pov tseg suav nrog cov pov tseg xws li kev txiav tawm thiab cov khoom siv hauv paus, cov khoom siv pov tseg thib ob suav nrog cov khoom pov tseg tom qab kev ua haujlwm xws li oxidation thiab hmoov txheej, thiab thermal rwb thaiv tsev profiles yog categorized li tertiary pov tseg. Oxidized profiles yuav tsum siv tshwj xeeb dawb paug, thiab feem ntau yuav tsis muaj khib nyiab ntxiv thaum cov ntaub ntawv txaus.
4.2 Txheej Txheem Ntau Lawm
Txhawm rau kom tau txais cov khoom zoo, kev ua raws li cov txheej txheem yuav tsum tau ua rau lub sijhawm nitrogen purging thiab txhuas lub sijhawm yog qhov tseem ceeb. Alloying cov ntsiab lus feem ntau ntxiv rau hauv daim ntawv thaiv, thiab kev sib xyaw ua ke yog siv los ua kom lawv tawg. Kev sib xyaw kom zoo tiv thaiv kev tsim ntawm thaj chaw high-concentration aav ntawm alloy ntsiab.
Xaus
Aluminium alloys yog dav siv nyob rau hauv lub zog tshiab tsheb, nrog rau kev siv nyob rau hauv cov yam ntxwv Cheebtsam thiab qhov chaw xws li lub cev, cav, thiab lub log. Kev siv ntau ntxiv ntawm aluminium alloys hauv kev lag luam tsheb yog tsav los ntawm kev thov rau kev siv hluav taws xob thiab kev ruaj ntseg ib puag ncig, ua ke nrog kev nce qib hauv aluminium alloy technology. Rau cov ntaub ntawv nrog cov kev xav tau zoo saum npoo av, xws li txhuas roj teeb tais nrog ntau lub qhov sab hauv thiab kev xav tau kev ua haujlwm siab, kev txhim kho qhov ua tau zoo ntawm cov pwm extrusion yog qhov tseem ceeb rau cov tuam txhab kom vam meej hauv cov ntsiab lus ntawm lub zog hloov pauv.
Kho los ntawm May Jiang los ntawm MAT Aluminium
Post lub sij hawm: May-30-2024
