Nrog rau kev txhim kho cov cuab yeej siv tsheb niaj hnub, hauv kev lag luam tsheb niaj hnub no, lub cev steel phaj feem ntau siv cov hlau nyias nyias nrog lub thickness ntawm 0.6 ~ 1.5mm. Feem ntau ntawm cov hlau phaj ntsib hauv kev kho lub cev yog cov hlau tsis tshua muaj carbon. Txhawm rau txo qhov hnyav ntawm lub tsheb, ultra-high-carbon steel daim hlau tau maj mam siv. High-strength steel, high-strength steel, high-strength low-alloy steel, thiab lwm yam., kub-dip galvanized steel los xij kuj tau lug siv rau tej yam Cheebtsam, tshwj xeeb tshaj yog cov raug corrosion. Cov khoom siv tsheb xav tau ob qho tib si muaj zog thiab lub teeb yuag. Siv cov khoom siv aluminium alloy lub cev yog ib txoj hauv kev tawm, vim tias txhuas yog sib dua li hlau. Txawm li cas los xij, tus nqi ntawm cov khoom siv aluminium yog siab, thiab cov txheej txheem stamping thiab vuam tshuab yuav tsum tau tshwj xeeb. Nrog rau cov thev naus laus zis tam sim no, nws tsis tuaj yeem ua rau cov tuam ntxhab zoo tib yam ua nws. Yog li ntawd, ntxiv rau aluminium alloys, puas yuav muaj cov ntaub ntawv tshiab rau cov khoom siv hauv lub cev?
Galvanized hlau
Nrog rau txoj kev loj hlob ntawm kev lag luam tsheb,galvanized steel ntawvyog dav siv nyob rau hauv thiaj li yuav txhim kho lub neej kev pab cuam ntawm lub tsheb lub cev thiab txhim khu lub corrosion kuj ntawm lub tsheb lub cev khoom. Txij li qhov kev tiv thaiv qhov chaw vuam txoj kev yog tam sim no tsuas yog siv nyob rau hauv lub tsheb lub cev tsim, piv nrog uncoated steel daim hlau, tseem muaj ib co teeb meem nyob rau hauv qhov chaw vuam txheej txheem ntawm galvanized steel daim hlau: zinc txheej uas melts ua ntej steel phaj tsim ib lub nplhaib zinc thiab shunts qhov ntws, ua rau vuam Qhov tam sim no ceev yog txo; qhov saum npoo ntawm zinc txheej yog hlawv thiab paug cov electrode, uas txo lub neej ntawm electrode; lub resistivity ntawm zinc txheej yog tsawg thiab kev tiv thaiv yog me me; Cov kev tsis xws luag xws li vuam spatter, tawg, thiab pores yog nquag tshwm sim.
Cold dov steel phajthiab kub dov steel phaj
Qhov sib txawv ntawm cov ntawv txias dov thiab cov ntawv kub dov yog tshwm sim hauv ntau yam. Ua ntej, lawv cov txheej txheem tsim khoom thiab cov khoom siv sib txawv. Cov ntawv kub dov feem ntau yog siv cov pa roj carbon tsawg lossis cov hlau alloy ua cov khoom siv raw, thiab tau dov tom qab tau rhuab mus rau qhov kub thiab txias. Cold-dov daim hlau, ntawm qhov tod tes, yob steel daim hlau ntawm chav tsev kub, feem ntau yog siv cov hlau tsis tshua muaj carbon steel ua raw khoom. Qhov thib ob, qhov tseeb ntawm qhov chaw thiab smoothness ntawm daim hlau txias thiab cov phaj kub dov yog txawv.
Kub dov steel phaj: siab tshaj 800 degree , 1.6-8 hli, siab zog steel phaj, siv rau high-zog qhov chaw, xws li tsheb lub cev, kab teeb, thiab longitudinal beams. Tsheb sab hauv steel daim hlau thiab chassis qhov chaw.
Txias-rolled steel phaj: tsis kub, 0.4-1.4 hli, dav siv nyob rau hauv integrated tsheb lub cev. Cold-dov nyias steel phaj yog cov ntawv luv ntawm cov qauv carbon zoo tib yam steel txias-kuav los tiag phaj. Nws tseem yog hu ua txias-dov phaj, feem ntau hu ua txias phaj, thiab qee zaus sau yuam kev ua phaj txias. Txias phaj yog ua los ntawm cov pa roj carbon zoo tib yam steel kub-kuav los tiag steel sawb, uas yog ntxiv txias-dov mus rau hauv ib lub phaj steel nrog lub thickness tsawg dua 4 hli. Txij li thaum dov ntawm chav tsev kub tsis tsim cov hlau oxide nplai, lub phaj txias muaj qhov zoo ntawm qhov zoo thiab qhov tseeb qhov tseeb. Ua ke nrog kev kho annealing, nws cov khoom siv kho tshuab thiab cov txheej txheem kev ua tau zoo yog zoo dua li kub-kuav los tiag nyias steel daim hlau. Nyob rau hauv ntau lub teb, tshwj xeeb tshaj yog nyob rau hauv lub teb ntawm cov khoom siv hauv tsev, nws tau maj mam siv los hloov kub-dov nyias steel daim hlau. Lub ntsiab ntau yam ntawm low-alloy high-strength steel daim hlau muaj xws li phosphorus-muaj txias-kuav los tiag steel daim hlau, ci-hardened txias-kuav los tiag steel daim hlau, txias-dov dual-theem steel daim hlau thiab high-zog IF txias-dov hlau daim hlau. Cov neeg tsim tsheb lub cev tuaj yeem kho cov phaj phaj raws li qhov kev ntxhov siab thiab cov duab ntawm cov phaj phaj. Xaiv hom steel phaj raws li qhov degree.
