Hydrostatic extrusion
Hydrostatic extrusion, tseem hu ua high-pressure kua extrusion, yog mus nias lub hwj chim siab (siab txog 1000-3000 MPa) hauv lub extrusion kheej kheej thaum lub sij hawm extrusion, thiab lub siab ntawm lub siab muaj kua hauv lub extrusion ntawm cov Cov xov hlau tawm ntawm lub qhov tuag ploj tuag Qhov ntawm txoj kev ua extruded kom tau txais yam kev xav thiab loj.
Hydrostatic extrusion muaj ntau yam zoo dua cov pa kev ua pa. Cov qe hlau tsis yog nyob rau sab nraud ntawm sab phab ntsa ntawm extrusion cylinder, thiab tsis muaj kev sib txhuam, yog li cov hlau deformation tsis tshua zoo lawm; yuav siv tau ntev dua, thiab cov tshuaj nplaum yuav tsis muab extruded. Bending; kev khoov me me, 20-40% me dua cov pa khov kho tom ntej; siab extrusion piv, kev kub ceev extrusion. Txawm li cas los xij, muaj qee cov teeb meem uas yuav tsum tau daws tib lub sijhawm, xws li: kua ntom nti hauv siab siab, lub zog ntawm cov cuab yeej extrusion, xaiv kev siab txias, thiab lwm yam.
Siab lubricated tsis muaj siab residual extrusion
Thaum siab lubricated tsis muaj siab residual extrusion, vim tsis tshua deg sib txhuam, cov hlau ndlwg kuj raug, uas tuaj yeem txo thiab tshem tawm qhov tshwm sim ntawm extrusion thiab compression tail, tawm tsuas yog ib tug siab nyias ntawm qhov kawg ntawm extrusion, zoo heev kev txhim kho cov hlau tawm los.
Tuav txoj kev sib txhuam extrusion
Txij nws txoj kev txhuam tawm txhais tau hais tias ob qho tib si lub plhom tawm thiab lub tshuab hlau tawm thaum lub sij hawm extrusion, tab sis lub extrusion kheej kheej txav mus rau extrusion tuag kuj sai sai, yog li ntawd txoj kev txhuam ntawm lub extrusion kheej kheej nyob rau hauv ingot yog nce. Lub zog ntawm cov txheej hlau khiav.
Thaum ua cov kev sib txhuam ntawm kev txhuam tawm, tsis muaj lubricant ntawm lub thawv extrusion thiab cov hlau ingot los tsim cov kev txhawj xeeb siab kev txhuam siab.
Plhaws tawm
Ingot extrusion tseem hu ua tsis muaj residue residue. Thaum ib cov tshuaj nqos tau ntev li 2/3 ntev lawm, cov pob zeb txuas ntxiv yog ib qho tseem ceeb heev.
Nruam extrusion
Hauv kev nruam extrusion, lub extrusion yog nruam thiab cov yas deformation ntawm cov hlau yog tiav tiav los ntawm kev sib txhuam ntawm cov hlau mus rau lub cuab tam hu rau qhov chaw.