Cov phooj ywg uas ua si Tsheb tau sawv! Nyob ntawm log elyclopedia nyob ntawm no!

Lub log, raws li taug kev ntawm lub tsheb, ua lub luag haujlwm tseem ceeb heev. Kev teeb tsa ntawm cov thawj pawg loj -}}}}}}}}}}}}}}}}}}}}} Txoj Kev Ua Qauv, Kev Siv Nyiaj, Kev Siv Nyiaj Txiag, thiab Kev Lag Luam Tsheb. Yog li ntawd, muaj ntau txoj hauv kev los tsim cov log! Tom qab xaiv ntau yam khoom xaiv thiab casting cov txheej txheem, log tau muab faib ua cov hauv qab no:

1. Iron log

Cov txheej txheem tsim khoom lag luam ntawm cov log hlau yog qhov yooj yim, tus nqi qis dua, thiab cov hlau muaj lub zog anti - nkees nkees. Nws yog thawj qhov kev xaiv rau qis - tus nqi log. Nws yog dav siv nyob rau hauv thawj theem ntawm lub hub kev loj hlob.
Nyob rau hauv lub xyoo pua 21st, tib neeg cov cai yuav tsum tau nce tsheb tau maj mam nce, mus sib tw tsheb, thiab kev sib tw hauv kev ua lag luam hauv tsheb tau muaj zog. Cov log hlau muaj maj mam rho tawm ntawm qhov chaw pib pib thiab dhau los ua tus cim ntawm keeb kwm. Hauv kev ua lag luam niaj hnub no, nws nyuaj rau peb pom cov log hlau. Qhov tseem ceeb vim li cas nyob hauv kev txhim kho ntawm cov khoom lag luam, thiab cov log qub tau raug tshem tawm.

2. Casting log

Piv nrog cov log hlau, nrum log yog cov khoom lag luam ntawm cov khoom lag luam. Hauv kev txhim kho lub log, nrum log tau ua tiav ib qho kev ua kom muaj zog thiab ua kom muaj kev hloov pauv thiab kev txhim kho ntawm kev lag luam log.
Muaj ntau cov txheej txheem tsim khoom rau cov log. Tam sim no, muaj peb hom tseem ceeb: Lub ntiajteb txawj nqus casting, qis {1} h siab} siab} h siab} siab camting, thiab kiv ce. Peb txoj kev muaj lawv tus kheej zoo thiab coj tsis zoo. Ntawm tam sim no, feem ntau ntawm cov thawj cov log ntawm cov qauv ntawm kev ua lag luam qis ntawm qis {4} Kev muaj cov qauv muaj txiaj ntsig zoo, xws li cov qauv qhia meej, thiab ntom ntom ntom.

3. Raug log

Lub log fored yog kev ua thiab tsim qauv uas siv ib txhiab {}}}}}}}} pa forging nrog cov khoom siv ntau dua, muaj qee yam duab, thiab qhov loj me.

Cov log tam sim no tau muab faib ua ib qho ib leeg {}}}} {1} muaj kev tiv thaiv rau cov neeg siv khoom sib txawv yuav tsum sib txawv. Piv nrog thawj ob hom log, forged log muaj qhov zoo ntawm cov thev naus laus zis niaj hnub. Qhov zoo ntawm lub log ntau lawm, suav cov nqi tsim yuav ua kom muaj kev sib raug zoo, thiab tus nqi tsim khoom yuav dhau los ua siab dua.