Lub log txoj kev loj hlob tau muab faib ua cov qauv kev tsim khoom, tuaj yeem muab faib ua cov log tsheb thiab cov log cam hlau.
Tantalum steel log: Lawv tau tsim los ntawm kev dov thiab ib puag ncig billets. Los ntawm cov kev siv tam sim no hauv Suav teb, cov log ntawm Handan Hlau thiab Cov Hlau yog tsim nyog rau cov neeg caij tsheb thiab cov tsheb thauj khoom. Cov laj kab steel ua los ntawm cov hlau tsis yog feem ntau raug rau ib lossis ob peb qhov cua sov thiab ntau yam dov. Kev tsim khoom siv lub silicon steel log siv cua sov ntau dua li lub log cuam ncaj qha.
Nrum steel log: Nws yog ncaj qha nrum los ntawm molten hlau. Kev tsim cov log tsheb steel hauv tsev tsuas yog siv rau cov tsheb ciav hlau thauj khoom xwb, thiab cov teb chaws txawv teb chaws kuj tau siv rau hauv nroog thiab tsheb npav. Piv nrog rau lub qij steel, cov log cam khwb cia steel muaj cov yam ntxwv ntawm cov txheej txheem khiav luv, cov khoom siv cov txheej txheem yooj yim, ob peb tus neeg ua haujlwm, kev ua hauj lwm ntau lawm thiab qis ntau lawm thiab kev tswj tus nqi.
Xyoo 1970, cov khoom tseem ceeb ntawm lub log tsheb tau ua los ntawm 84 lub log hom raws li "ob daim ntawv cog lus" ntawm Ministry of Metallurgy thiab Ministry of Railways. Lawv tau nyob rau hauv daim ntawv ntawm oblique webs, lub treads yog tapered treads, thiab webs yog unprocessed raw dov. Nyob rau saum npoo, lub log web tau muab nrog ob txheej txheem qhov ntawm 45 mm inch. Rau 840D log qauv, nws tsis tuaj yeem ua tau raws li qhov nrawm thiab qhov kev thov hnyav ntawm cov tsheb ciav hlau tsheb ciav hlau. Lub 21t qag qhov hnyav S-shaped hais lub log - HDS hom lub log, tshem tawm tag nrho lub log web lub qhov hauv tus qauv tsim thiab tshem tawm qhov kev ntxhov siab los ntawm lub ntug qhov Web site. Kev nyab xeeb kev nyab xeeb, zoo dua radial elasticity, ntau dua qhov nqa lub peev xwm thiab zoo dua tiv taus thermal tawg dua li ncaj qha lub log.
Lub sijhawm xyoo 1990, Lub Tsev Haujlwm Saib Xyuas Txoj Haujlwm Hluav Taws Xob tau tso cov log cam hlau los ntawm Tebchaws Meskas thiab xaiv cov khoom lag luam ntawm tsuas yog ob lub ntiaj teb nto moo cam khwb cia cov log tsheb tuam txhab (ABC thiab GRIFFIN). Cov khoom lag luam ntshuam txheem tau txais siv Asmeskas AARM10720 Lu. txuj. Los ntawm kev tshuaj xyuas thiab kev soj ntsuam ntawm cov hlau nrum log tsheb sib tsoo, thiab kev tsim cov kabmob TB / T1013-1999 "Cov Txheej Txheem Rau Cov Txheej Txheem ntawm Carbon Cast Steel Log", kev tsim cov cam khwb cia steel log lub log tau pib hauv Suav teb.
Kev txhim kho yav tom ntej kev taw qhia ntawm cov tsheb ciav hlau yog txhawm rau txhim kho lub nra, txo qhov hnyav, txo tus kheej qhov hnyav, thiab txo tus kheej qhov hnyav. Ntxiv rau kev txo qhov hnyav ntawm lub cev tsheb, nws yog ib qho tseem ceeb kom txo qhov hnyav ntawm lub tsheb caij nplooj ntoos hlav. Txij li lub log yog qhov nyuaj kom ua tiav qhov hnyav hauv kev siv technology hauv qhov chaw xws li lub vev xaib thiab lub log, nws nyuaj rau xa mus rau kev siv technology txawv teb chaws, thiab ntau lub log coj tau hloov mus rau thawj lub log coj (piv txwv li cov tuab ntawm cov npoo npoo yog hloov los ntawm 65mm mus rau 50mm), thiab lwm feem yog kho kom zoo. tsim.
Nyob rau xyoo 2005, nrog kev txhawb nqa ntawm Lub Tsev Haujlwm Tshawb Fawb thiab thev naus laus zis ntawm Ministry of Railways thiab Cov Khoom Siv Hluav Taws Xob ntawm Lub Chaw Saib Xyuas Tsheb Thauj Mus Los, Lub Chaw Haujlwm Hluav Taws Xob Hluav Taws Xob Lub Tuam Txhab Kev Koom Tes, Lub Koomhaum Juran thiab Maanshan Iron thiab Steel tuam txhab pib sib koom tsim thiab tsim qauv tshiab log tshuab txheem txheej txheem. Txheeb xyuas cov teeb meem uas muaj nyob hauv Tuam Tshoj tus txheej txheem thev naus laus zis tam sim no, thiab tib lub sijhawm npaj kev soj ntsuam kom paub tseeb cov ntsuas kev cuam tshuam ntawm cov qauv log, thiab hais tawm cov phiaj xwm kho tshiab rau cov qauv tshiab raws li cov haujlwm hauv Suav.
