1.Strip wave:
Cov kab nrib pleb tshwm vim tias muaj qhov sib txawv ntawm qhov nro thiab kev hloov pauv hauv cov ntawv txheeb thaum cov nplooj ntawv yog khoov los ntawm yob txoj kev tshuab, tab sis cov kab ntawm daim ntawv raws li cov thickness kev taw qhia (axial strain) feem ntau yog me me. Raws li kev paub dhau los, cov khoom yuav muaj kev sib raug zoo ntawm Poisson nyob rau hauv tus txheej txheem ntawm deformation, ces yuav muaj shrinkage nyob rau hauv lub concentration ntawm deformation, yog li nyob rau hauv qhov kev txiav txim ntawm quab yuam, ib tug band zoo li bulge yuav tshwm sim vim instability.
LINBAY ROLL FORMING MACHINE pab pawg kws tshaj lij muab kev daws teeb meem rau koj:
Thaum cov kab nrib pleb tshwm sim, peb tuaj yeem siv ntau txoj hauv kev los daws qhov tshwm sim no; vim hais tias qhov dav ntawm ntu ntug yuav cuam tshuam rau cov band nthwv dej, cov phaj nyias nyias muaj ntau dua rau cov kab nrib pleb dua li cov phaj tuab. Tus kws tshaj lij tuaj yeem siv lub siab rau daim ntawv ntawm kev tsim los daws cov kab nrib pleb.
2. Ntug nthwv dej
Ntug nthwv dej yog qhov tshwm sim ntau tshaj plaws nyob rau hauv cov txheej txheem ntawm yob txoj kev tshuab. Muaj ob qho laj thawj rau nws.
(1) Ib yam li cov sawb yoj, vim hais tias cov khoom nyob rau hauv qhov nkhaus yog raug rau transverse tensile stress, uas nyob rau hauv lem induces transverse tensile strain, thiab vim hais tias ntawm Poisson kev sib raug zoo, transverse shrinkage tshwm sim. Nyob rau lub sijhawm no, ntug ib feem yuav tshwm ntug nthwv dej vim qhov kev ntxhov siab shrinkage.
(2) Cov khoom yog pib ncab thiab sheared nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam kom ntev, thiab ces plastically deformed los ntawm compression thiab shear, uas nws thiaj li ua rau ntug nthwv dej.
LINBAY ROLL FORMING MACHINE pab pawg kws tshaj lij muab kev daws teeb meem rau koj: qhov dav ntawm ntug dav rau lub phaj thickness tsawg dua los yog ze rau 30mm; Yog hais tias muaj nthwv dej thaum lub sij hawm yob txoj kev, Linbay ntxiv tus naj npawb ntawm kev sib sau sawv los txo nws.
3.Longitudinal dabtsi yog khoov
Muaj ntau qhov laj thawj rau kev khoov ntev hauv cov txheej txheem ntawm yob txoj kev tshuab ntau lawm, tab sis qhov tseem ceeb tshaj plaws yog tias cov ntug ntawm seem yog stretched nyob rau hauv longitudinal kev taw qhia vim yog qhov nro nyob rau hauv tus txheej txheem ntawm dabtsi yog khoov sab.
LINBAY ROLL FORMING MACHINE pab pawg kws tshaj lij muab kev daws teeb meem rau koj: ntxiv cov qauv tsim, txais yuav ua ntej khoov kom tsis txhob muaj qhov tshwm sim no, lossis kho cov yob qhov sib txawv kom txo lossis tshem tawm qhov kev sib tw ntev.
4.Qhov teeb meem ntawm dov stabilityyog tias cov khoom siv feem ntau swayed nyob rau hauv raceway thaum lub sij hawm tsim khoom. Qhov tseeb, ib txheej ntawm rollers yog asymmetrical. Sab laug bears lub zog loj thiab cov khoom txav mus rau sab xis; txoj cai dais lub zog loj thiab cov khoom txav mus rau sab laug.
LINBAY ROLL FORMING TSHUABpab pawg kws tshaj lij muab kev daws teeb meem rau koj: ua ntej, txheej nruab nrab hauv cheeb tsam deformation yog xam kom raug, thiab cov txheej txheem ntawm cov menyuam ua tau zoo. Qhov thib ob, qhov chaw uas tsis yog deformation yuav tsum tsis txhob compressed kom ntau li ntau tau (xws li hauv qab ntawm lub swb rail), thiab qhov sib txawv ntawm sab sauv thiab sab chais yuav tsum tau khaws cia zoo ib yam thaum lub sij hawm sib dhos. Thaum kawg, teeb tsa cov khoom siv coj los khaws cov ntawv hauv nruab nrab.
Post lub sij hawm: Aug-11-2020