Cov ntaub ntawv dab tsi tuaj yeem ua rau yob tsim?

Roll forming yog cov txheej txheem kev ua haujlwm txias txuas ntxiv uas ua rau cov hlau coils ntev mus rau hauv cov khaubncaws sab nraud povtseg -sectional profiles los ntawm ntau qhov chaw rau cov menyuam. Tsis zoo li stamping lossis nias braking, txoj kev sib txuas ntxiv no txo qis kev ntxhov siab sab hauv, ua kom muaj qhov tseeb ntawm qhov sib npaug, thiab txhawb nqa siab - ntim ntau lawm. Txawm li cas los xij, tsis yog txhua yam khoom siv hlau thiab cov khoom sib xyaw ua ke tau sib haum nrog yob txoj kev. Cov khoom siv ductility, yield zog, springback tus nqi, nto txheej yam ntxwv, thiab ua hauj lwm - hardening cwj pwm ncaj qha txiav txim nws formability, ua nyuaj, thiab zaum kawg cov khoom zoo. Nkag siab txog ntau yam ntawm yob- cov ntaub ntawv tsim tau, lawv cov kev sib tw ua haujlwm tshwj xeeb, thiab thaj tsam ntawm daim ntawv thov kev lag luam yog qhov tseem ceeb rau kev xaiv cov cuab yeej siv, kev tsim cov cuab yeej, thiab kev tswj cov nqi tsim khoom. Kab lus no systematically categorizes mainstream yob tsim cov ntaub ntawv, tshuaj xyuas lawv cov txheej txheem cov yam ntxwv, thiab piav qhia txog kev tsim cov txheej txheem thiab kev txwv.

Ua ntej faib cov ntaub ntawv tshwj xeeb, cov tuam txhab lag luam yuav tsum paub cov kev ntsuas tseem ceeb uas txiav txim siab yob txoj kev sib raug zoo. Cov txheej txheem no yog tus qauv tseem ceeb rau kev txiav txim siab seb cov khoom puas tuaj yeem ua kom ruaj khov ntawm txoj kab yob txoj kab.

Ductility yog qhov yuav tsum tau ua ua ntej rau yob txoj kev. Cov txheej txheem incremental dabtsi yog khoov yuav tsum tau cov ntaub ntawv los tiv thaiv nruam tensile thiab compressive deformation yam tsis muaj cracking los yog ntug fracturing. Tsawg-cov ntaub ntawv ductility nkig tsis tuaj yeem hloov mus rau ntau yam - dhau txoj kev loj hlob thiab ua rau muaj kev puas tsuaj thaum lub sijhawm tsim khoom. Txhua yam khoom muaj qhov khoov qhov qis kawg nkaus; tsim dhau qhov kev txwv no yuav ua rau cov khoom siv tsis raug.

Springback hais txog cov khoom siv rov qab deformation tom qab tawm hauv qhov chaw nres tsheb rau cov menyuam, uas yog qhov zoo sib xws nrog cov khoom siv zog thiab elastic modulus. High- lub zog alloys muaj qhov hnyav hnyav, yuav tsum tau kho dua - khoov cov cuab yeej them nyiaj thiab nce dov chaw nres tsheb kom ntseeg tau tias qhov profile flatness thiab qhov ruaj khov.

Coated, polished, thiab siab - cov ntaub ntawv muaj tseeb muaj qhov yuav tsum tau ua kom haum rau saum npoo. Cov ntaub ntawv tawv ua rau cov menyuam hnav hnyav, thaum cov ntaub ntawv mos yog qhov ua rau khawb qhov chaw, indentations, thiab cov khoom adhesion. Kev sib txuam cov khoom siv rau cov menyuam, kev kho deg polishing, thiab cov txheej txheem lubrication raws li cov khoom siv yog tus yuam sij rau kev tsim nyog.

Cov txheej txheem yob txoj kab yog tsim rau nyias thiab nruab nrab - ntsuas cov ntaub ntawv coiled xws li 0.2mm txog 10mm. Ultra- cov ntaub ntawv nyias hauv qab 0.3 hli yog qhov ua rau jitters thiab deformation thaum pub mis, thaum ultra- cov phaj tuab tshaj 6 hli yuav tsum hnyav- cov khoom siv txhawb nqa nrog siab - lub zog tsav lub zog kom ua tau raws li qhov yuav tsum tau ua rigidity.

Ferrous hlau account rau ntau tshaj 90% ntawm yob txoj kev siv ntau lawm. Nrog cov khoom siv kho tshuab ruaj khov, tswj tau qhov nyuaj, thiab cov nqi tsim khoom qis, lawv tau siv dav hauv kev tsim kho, kev tsim vaj tsev, kev xa khoom, thiab kev tsim khoom siv tshuab.

Tsawg-cov pa roj carbon me me yog cov khoom siv tau zoo tshaj plaws thiab tus nqi-cov ntaub ntawv yob txoj kev zoo. Nws nta zoo heev ductility, tsis tshua muaj hauj lwm- hardening npaum li cas, thiab lub caij nplooj ntoos hlav me me, yoog raws yuav luag txhua cov txheej txheem sib sau ua ke. Cov thickness siv tau los ntawm 0.3mm mus rau 6.0mm, npog nyias cov hniav zoo nkauj thiab cov khoom tuab tuab -cov kabmob cov qauv. Txias-rolled me me steel yog siv rau rhawv, khoom siv brackets, thiab lub teeb mechanical profiles, thaum kub-rolled pickled thiab oiled steel yog haum rau hnyav{11}}lub luag hauj lwm channel steel, lub kaum sab xis steel, thiab cov qauv kev txhawb nqa profiles. Cov khoom siv no muaj qhov yuav tsum tau ua rau cov menyuam hardness thiab cov cuab yeej rigidity, sib xws nrog cov qauv semi{13}} tsis siv neeg thiab tsis siv neeg yob txoj kab sib sau, thiab yog cov khoom siv hauv paus rau kev txhim kho cov txheej txheem tshiab.

Kub-dip galvanized steel thiab galvalume steel yog los tiv thaiv-corrosion hloov kho steel cov ntaub ntawv, tshwj xeeb tshaj yog optimized rau sab nraum zoov ib puag ncig. Galvanized steel txais cov zinc txheej ntshiab, thaum galvalume steel siv aluminium-zinc alloy txheej nrog cov huab cua muaj zog. Ob leeg cov ntaub ntawv muaj formability ze rau cov hlau me me thiab yog cov ntaub ntawv tseem ceeb rau lub tsev hnab ntawv, nrog rau lub ru tsev panels, phab ntsa cladding, C / Z purlins, thiab gutter profiles. Cov txheej txheem tseem ceeb nyob rau hauv kev tiv thaiv cov txheej txheej saum npoo: ntau cov menyuam siab, cov cuab yeej tsis zoo, thiab cov kab tsis zoo yuav ua rau txheej txheej txheej, khawb, thiab tawg. Kev tsim khoom yuav tsum muaj -precision polished rollers thiab qis- kev sib txhuam lubrication kom ntseeg tau tias tsis muaj kev tiv thaiv kev ua haujlwm zoo tom qab tsim.

Prepainted steel siv galvanized los yog galvalume steel ua lub substrate thiab yog coated nrog organic xim xim rau saum npoo. Nws koom ua ke los tiv thaiv-corrosion thiab kho kom zoo nkauj ua haujlwm, dav siv hauv kev tsim vaj tsev zoo nkauj profiles, xim hlau vuas, thiab sab nrauv phab ntsa kab hlau rhuav phab ntsa panels. Cov khoom siv no muaj cov txheej txheem nruj tshaj plaws ntawm cov khoom siv hlau. Cov xim txheej yog yooj yim rau tawg, tev, thiab wrinkling thaum khoov thiab extrusion. Yog li ntawd, ntau lawm yuav tsum zam ultra- me me khoov radii, siv daim iav- polished rollers, thiab txais yuav cov txheej txheem lubrication qhuav los tiv thaiv cov xim paug thiab puas. Lub qhov rais txheej txheem ntau lawm yog nqaim, xav tau kev tswj xyuas meej ntawm kev sib sau ceev thiab cov menyuam sib txawv.

High-lub zog qis- alloy steel thiab siab heev- lub zog steel yog cov khoom siv tshwj xeeb rau tsheb, tsheb thauj mus los, thiab kev ua haujlwm hnyav. Piv nrog rau cov hlau me me, lawv muaj zog tensile ntau dua thiab lub zog tawm los, ua kom pom lub teeb yuag thiab siab load-cov qauv tsim qauv. Txawm li cas los xij, lub zog siab ua rau muaj kev sib tw loj heev: cov nyhuv springback pom tseeb, ua haujlwm nrawm nrawm, thiab muaj kev pheej hmoo siab ntawm ntug kev tawg. Kev ua HSS thiab AHSS tsis tuaj yeem siv cov txheej txheem yob cov khoom siv. Nws yuav tsum tau siv lub tshuab thickened, siab -torque tsav tshuab, quenched siab -hardness rollers, thiab nce dov chaw nres tsheb rau gradual deformation tso tawm sab hauv kev ntxhov siab. Cov khoom lag luam muaj xws li cov tsheb sib tsoo cov kab teeb, chassis reinforcing profiles, thiab cov khoom siv tsheb thauj khoom.

Stainless hlau (304, 316, 430 series) yog dav siv nyob rau hauv cov khoom noj machinery, hluav taws xob enclosures, marine engineering, thiab siab -kawg architectural kho kom zoo nkauj vim nws zoo heev corrosion kuj. Austenitic 304 thiab 316 stainless hlau muaj ductility zoo tab sis tseem ceeb ua hauj lwm hardening yam ntxwv; cov khoom hardness nce tsis tu ncua thaum lub sij hawm tsim, ua rau kom cov menyuam hnav thiab aggravated springback. Ferritic 430 stainless hlau muaj tus nqi qis dua tab sis tsis zoo ductility, nws yooj yim rau kev tawg ntawm txoj haujlwm nruj. Stainless hlau txoj kev yuav tsum muaj siab -hardness los tiv thaiv- hnav cov menyuam thiab cov txheej txheem lubrication kom tsis txhob muaj qhov khawb ntawm qhov chaw, thiab cov cuab yeej yuav tsum tau them nyiaj rau lub caij nplooj ntoos hlav los xyuas kom meej qhov profile qhov tseeb.

Tsis yog -ferrous hlau sawv cev los ntawm txhuas, tooj liab, thiab tooj dag muaj qhov zoo ntawm lub teeb yuag, muaj zog conductivity, thiab zoo corrosion kuj. Lawv feem ntau yog siv rau hauv kev tsim khoom hnyav, hluav taws xob engineering, thiab siab -kawg kho kom zoo nkauj, nrog cov qauv tsim tshwj xeeb txawv ntawm cov hlau ferrous.

Aluminium alloys yog cov khoom siv dav tshaj plaws uas tsis yog -ferrous cov ntaub ntawv rau yob txoj kev. Cov qib mos xws li 1050, 3003 thiab 5052 qhia tau zoo heev ductility, ua rau lawv zoo tagnrho rau hnub ci mounting thav duab, architectural trim, tshav kub dab dej profiles thiab thauj vaj huam sib luag Cheebtsam. Aluminium yog softer ntau dua li cov hlau, yog li cov khib nyiab me me ntawm cov chais thiab strips tuaj yeem yooj yim tawm mus tas li indentations. Nruab nrab-lub zog alloys zoo li 6061 yog yob-formable tab sis xav kom loj dua khoov radii tiv thaiv ntug tawg. Aluminium kuj tseem muaj lub siab ua rau lub plab thiab lo rau ntawm cov menyuam qhov chaw, yog li cov lubricants tshwj xeeb thiab cov npoo av ua kom zoo. Springback them nyiaj yuav tsum tau muab xam cais, raws li txhuas lub elastic rov qab tus cwj pwm txawv heev ntawm carbon hlau.

tooj liab thiab tooj dag yogyob tsimfeem ntau yog rau hluav taws xob busbars, conductive Cheebtsam, ru tsev flashing thiab khoom kim heev architectural hniav profiles. Ntshiab tooj liab muaj ductility zoo heev thiab superior hluav taws xob thiab thermal conductivity. Tsawg-zinc tooj dag alloys kuj tseem tuaj yeem txuas ntxiv yob tsim, thaum siab -zinc tooj dag ua nkig thiab nyuaj rau khoov. Ob qho tib si hlau yog heev rhiab heev rau nto khawb. Roll tooling yuav tsum yog daim iav polished ua ntej ntau lawm, thiab cov npoo ntawm lub kauj yuav tsum tau deburred. Burrs ntawm ntug kab txaij yuav rhuav cov hlau nto thaum dhau los ntawm cov chaw tsim khoom. Tooj liab ua haujlwm nyuaj dhau los ntawm txhua qhov kev sib tw, maj mam nce springback raws kab. Cov khoom siv tus nqi siab, yog li kev txo qis thiab kev tswj cov txheej txheem ruaj khov yog qhov tseem ceeb ntawm kev lag luam.

Magnesium alloys yog ultra- lub teeb txheej txheem hlau, tab sis lawv muaj tsawg chav - kub ductility. Txheem txias yob txoj kev yuav yooj yim tsim microcracks thiab ntug fractures. Kev ua tiav ntawm kev ua tiav ntawm magnesium feem ntau yuav tsum tau siv lub tshuab ua kom sov kom nce cov khoom kub thiab txhim kho plasticity. Vim yog cov khoom siv cua sov ntxiv, magnesium yob txoj kab yog kev cai thiab kim. Lawv tsuas yog tau txais kev pom zoo hauv niche lightweight tej yaam num hauv automotive thiab aerospace sectors, thiab tsis haum rau dav -lub hom phiaj txias yob txoj kev cob qhia.

Tshaj li cov khoom siv hlau monolithic, ib qho me me ntawm cov khoom siv laminated tuaj yeem ua tauyob tsimnrog kho cov cuab yeej thiab txo kab ceev.

Hlau -cov vaj huam sib luag yas sib xyaw siv cov tawv hlau nyias txuas nrog cov tub ntxhais polymer, feem ntau siv rau lub tsev cladding thiab cov vaj huam sib luag zoo nkauj. Qhov kev pheej hmoo loj tshaj plaws thaum tsim yog delamination ntawm cov hlau thiab cov txheej txheem polymer. Cov kws ua choj yuav tsum tsim khoov radii loj thiab zam cov ntsiab lus siab ntawm cov menyuam. Kev ceev ntau lawm yog qeeb qeeb dua li cov hlau tsim los txo qhov kev pheej hmoo ntawm tev.

Ntau yam ua ntej- pleev xim los yog polished hlau coils tuaj nrog ib ntus yas tiv thaiv zaj duab xis los khaws cov khoom zoo. Lub hauv paus hlau nws tus kheej yog tag nrho formable, tab sis cov neeg tsav tsheb yuav tsum xaiv cov cua sov- tiv thaiv zaj duab xis. Kev sib txhuam thaum tshav kub kub tuaj yeem yaj los yog wrinkle tsawg- zaj duab xis zoo, tawm hauv seem thiab ua rau cov khoom tiav tiav.

Tsis yog txhua cov ntaub ntawv tuaj yeem ua tiav los ntawm cov pa txias yob txoj kev. Cam khwb cia hlau yog inherently brittle thiab puas yooj yim nyob rau hauv rov incremental dabtsi yog khoov. Tag nrho cov cuab yeej hardened hlau, tsis kho titanium alloys, thiab qee qhov ultra-siab-lub zog alloys tsis muaj chav txaus- kub ductility. Tshaj - cov phaj tuab tshaj qhov kev txwv ntawm cov khoom siv hluav taws xob tsis tuaj yeem tsim tau tshwj tsis yog tias tag nrho cov kab ntau lawm yog hnyav hnyav.

Cov ntaub ntawv nkig tsis tuaj yeem nqus tau qhov sib ntxiv khoov thiab yuav tawg ntawm qhov chaw khoov. Nws raug pom zoo kom ua qhov me me - ntsuas kev sim ua ntej ua ntej ntau lawm thaum twg ua haujlwm nrog cov hlau tsis paub.

Thaum xaiv cov khoom siv raw rau yob txoj haujlwm, engineers yuav tsum sib npaug tsib qhov tseem ceeb: formability, mechanical performance, deg yuav tsum, raw khoom nqi thiab kab muaj peev xwm.

Ua ntej, paub meej tias qhov tsawg kawg khoov vojvoog uas yuav tsum tau ua los ntawm daim duab profile thiab sib piv nrog cov ntaub ntawv cov ntaub ntawv. Thib ob, suav cov caij nplooj ntoos hlav rov qab thiab cia nyiaj them rau cov cuab yeej yob tsim. Thib peb, ntsuas qhov rhiab heev ntawm qhov chaw: coated, stainless thiab polished hlau xav tau ntau dua yob tiav thiab nruj dua lubrication tswj. Plaub, xyuas lub coil thickness thiab dav kom phim lub yob txoj kev tshuab lub peev xwm ntsuas. Thaum kawg, tshawb xyuas cov npoo npoo. Microcracks thiab burrs ntawm cov npoo npoo yuav nthuav tawm hauv kev tsim thiab ua rau kev npaj txhij txog profile tawg.

Ib tug dav spectrum ntawm metallic thiab xaiv cov ntaub ntawv sib xyaw ua tauyob tsim. Tsawg- carbon steel, galvanized steel thiab prepainted xim-coated steel dominate siv thiab kev siv cov qauv siv. Stainless hlau, txhuas, tooj liab thiab tooj dag yog xaiv rau corrosion-resistant, hnav thiab conductive Cheebtsam. HSS thiab AHSS pab kom lub teeb yuag siab - lub zog qhov chaw rau tsheb thiab kev thauj mus los, tab sis lawv xav tau cov cav tov muaj zog thiab cov cuab yeej kev cai.

Tshwj xeeb lub teeb yuag alloys xws li magnesium yuav tsum tau rhuab tsim tshuab thiab nyob twj ywm rau niche siab -kawg industries. Brittle cam khwb cia cov ntaub ntawv feem ntau tsis suav nrog txias yob txoj kev. Lub hauv paus ntsiab lus tseem ceeb ntawm kev xaiv cov khoom siv yog txuam cov khoom siv kho tshuab rau kab rigidity, yob cov cuab yeej tsim, khoov geometry thiab ntau lawm ceev. Kev soj ntsuam cov khoom tsim nyog thiab cov txheej txheem kho kom zoo tswj lub caij nplooj ntoos hlav rov qab, qhov chaw tsis xws luag thiab cov nqi seem, txhawb kev ruaj khov, tus nqi- ua tau zoo nruam yob txoj kev tsim khoom.