Dab tsi yog hom compression tshaj plaws?

1, Zoo compression
Forward extrusion, tseem hu ua direct extrusion, yog qhov yooj yim tshaj plaws thiab feem ntau siv hom extrusion molding. Thaum lub sij hawm rau pem hauv ntej extrusion txheej txheem, cov hlau billet yog muab tso rau hauv lub extrusion lub tog raj kheej, thiab lub thrust ntawm lub extrusion pas nrig ua rau ib tug kawg ntawm lub billet, ua rau nws ntws tawm los ntawm lwm yam kawg ntawm cov pwm thiab tsim cov yam xav tau kev pab. khoom. Cov yam ntxwv ntawm kev xa mus rau pem hauv ntej extrusion yog hais tias thaum lub sij hawm extrusion txheej txheem, cov kev taw qhia ntawm cov hlau ntws yog tib yam li cov kev taw qhia ntawm lub zog ntawm extrusion pas nrig, yog li lub extrusion quab yuam yog kuj siab, tab sis cov hlau ntws yog sib xws.
Forward extrusion yog dav siv nyob rau hauv zus tau tej cov non-ferrous hlau kav, tuav, profiles, thiab lwm yam. Piv txwv li, extruded khoom ntawm non-ferrous hlau xws li txhuas alloys thiab tooj liab alloys, xws li lub qhov rooj thiab qhov rais thav ntawv, utility ncej, pipelines. , thiab lwm yam, feem ntau siv rau pem hauv ntej extrusion tshuab. Tsis tas li ntawd, rau pem hauv ntej extrusion kuj tseem haum rau qee qhov nyuaj rau extrude alloys thiab hlau nrog siab viscosity, xws li tooj liab.
Txawm li cas los xij, tseem muaj qee qhov kev txwv rau xa mus rau compression. Piv txwv li, vim lub siab squeezing quab yuam, muaj ntau dua yuav tsum tau rau cov khoom; Nyob rau tib lub sij hawm, yuav muaj ib tug loj npaum li cas ntawm perforation residue thaum lub sij hawm perforation, ua rau ib tug txo nyob rau hauv lub yield ntawm cov khoom hlau.
2, Rov qab compression
Rov qab extrusion, rov qab mus rau pem hauv ntej extrusion, yog tus cwj pwm los ntawm cov hlau ntws kev taw qhia yog rov qab mus rau kev taw qhia ntawm kev txav ntawm tus pas nrig extrusion. Thaum lub sij hawm thim rov qab txheej txheem extrusion, tus pas nrig extrusion ua rau ntawm ib qho kawg ntawm cov pwm, ua rau cov hlau billet ntws tawm mus rau qhov sib txawv ntawm qhov kawg ntawm pwm. Vim yog qhov sib txawv ntawm cov hlau ntws thiab extrusion quab yuam, lub extrusion quab yuam yog me me thiab cov hlau ntws zoo sib xws.
Rov qab extrusion yog tshwj xeeb tshaj yog haum rau cov hlau uas tsis zoo plasticity, xws li magnesium alloys, titanium alloys, thiab lwm yam. Cov hlau no feem ntau ua rau tawg vim tsis sib xws deformation thaum lub sij hawm extrusion pem hauv ntej, thaum nyob rau hauv rov qab extrusion, qhov tshwm sim ntawm cracking yog heev txo vim lub ntau uniform ntws ntawm cov hlau.
Tsis tas li ntawd, thim rov qab extrusion kuj muaj qhov zoo ntawm kev ua haujlwm siab thiab qis pwm poob. Txawm li cas los xij, thim rov qab extrusion tseem yuav tsum muaj cov cuab yeej siv siab, thiab vim qhov kev taw qhia ntawm cov hlau ntws thiab extrusion quab yuam, qee zaum, nws yuav ua rau qis dua qhov zoo ntawm cov khoom piv rau pem hauv ntej extrusion.
3, Lateral compression
Lateral compression, tseem hu ua kab rov tav compression, yog hom tshwj xeeb ntawm compression. Thaum lub sij hawm lateral extrusion txheej txheem, cov hlau billet yog muab tso rau hauv ib tug kab rov tav extrusion cylinder, thiab lub thrust ntawm extrusion pas nrig ua rau ntawm ib sab ntawm lub billet, ua rau nws ntws tawm ntawm lwm sab ntawm lub pwm. Cov yam ntxwv ntawm lateral compression yog tias nws tuaj yeem tsim qee yam khoom tshwj xeeb zoo li tus, xws li profiles.
Lateral compression muaj qee qhov kev siv hauv kev ua hlau, tab sis nws muaj qhov tshwj xeeb zoo hauv qee qhov tshwj xeeb. Piv txwv li, nyob rau hauv aerospace teb, qee qhov tshwj xeeb zoo li tus feem ntau yuav tsum tau ua los ntawm lateral extrusion. Tsis tas li ntawd, lateral compression kuj tseem siv tau los tsim qee cov kav dej thiab cov yeeb yaj kiab, xws li cov tshuab hluav taws xob, cua txias ducts, thiab lwm yam.
Txawm li cas los xij, lateral compression kuj muaj qee qhov kev txwv. Piv txwv li, vim lub kaum sab xis ntawm cov kev taw qhia ntawm cov hlau ntws thiab cov kev taw qhia ntawm extrusion quab yuam thaum lub sij hawm extrusion txheej txheem, cov ndlwg ntawm hlau yog tsis zoo li nyob rau hauv pem hauv ntej thiab rov qab extrusion; Nyob rau tib lub sijhawm, lateral compression kuj xav tau cov cuab yeej siv siab thiab ua haujlwm tsawg.
4, Nruam nyem
Nruam extrusion yog ib qho zoo extrusion molding tshuab. Thaum lub sij hawm tas mus li txheej txheem extrusion, cov hlau billet tsis tu ncua pub rau hauv lub tog raj kheej extrusion thiab ntws tawm tsis tu ncua los ntawm pwm los tsim cov khoom. Cov yam ntxwv ntawm kev nruam extrusion yog tias nws tuaj yeem ua tiav kev tsim khoom tas mus li thiab ruaj khov, txhim kho ntau lawm efficiency.
Nruam extrusion yog dav siv nyob rau hauv zus tau tej cov profiles, kav, xov hlau, thiab lwm yam uas tsis yog-ferrous hlau. Piv txwv li, aluminium alloy qhov rooj thiab qhov rais thav duab, cov khoom siv hluav taws xob, cov kav dej, thiab lwm yam. feem ntau yog siv cov tshuab extrusion txuas ntxiv. Tsis tas li ntawd, kev nruam extrusion kuj tseem haum rau qee cov yas siab thiab yooj yim deformable hlau, xws li tooj liab alloys.
Qhov zoo ntawm kev nruam extrusion suav nrog kev ua haujlwm siab ntau lawm, cov khoom ruaj khov zoo, thiab tsis muaj pwm poob. Txawm li cas los xij, tsis tu ncua compression kuj muaj qee qhov kev txwv. Piv txwv li, vim qhov ceev ceev ntawm cov hlau thaum lub sij hawm extrusion txheej txheem, siab yuav tsum tau muab tso rau ntawm qhov ntev thiab qhov zoo ntawm cov khoom; Nyob rau tib lub sijhawm, kev nruam extrusion tseem yuav tsum muaj cov cuab yeej siv siab, thiab tus nqi tu cov cuab yeej yog qhov siab.