Hauv kev tsim khoom lag luam ib txwm muaj, cov log hlau yog ib hom log siv ntau tshaj plaws. Txawm li cas los xij, vim muaj kev txwv ntawm nws cov khoom siv thiab cov qauv, cov log hlau muaj qee qhov tsis zoo.
Ua ntej tshaj plaws, lub neej ua haujlwm ntawm cov hlau casters luv luv, yooj yim rau xeb, hnav thiab tsim kua muag thiab lwm yam, thiab yuav tsum tau hloov pauv ntau zaus. Qhov thib ob, cov log hlau yooj yim rau suab nrov thiab kev co thaum tsav tsheb, uas yuav cuam tshuam rau cov khoom siv thauj mus los thiab ib puag ncig. Tsis tas li ntawd, qhov kev tiv thaiv dov ntawm cov hlau casters loj heev, uas yuav ua rau kev siv hluav taws xob thiab cov nqi khiav lag luam ntawm cov khoom siv thauj mus los nce ntxiv.
Rau cov teeb meem ntawm cov log hlau, tib neeg pib sim siv roj hmab los hloov hlau, piv rau hlau, cov khoom siv roj hmab yog yoog tau, hnav-resistant, tuaj yeem txo qhov suab nrov thiab kev co, thiab tuaj yeem hloov kho rau ntau yam kev xav tau ntawm kev tsav tsheb ntawm txoj kev.
Qhov tshwm sim ntawm cov log roj hmab, txo qhov poob ntawm lub log, tab sis vim yog qhov tshwj xeeb ntawm cov ntaub ntawv roj hmab, cov roj hmab ib txwm muaj kuj muaj qhov tsis muaj peev xwm nqa tau, deformation yooj yim tshwm sim, lub neej luv luv thiab lwm yam teeb meem.
Yuav kom daws tau cov teeb meem ntawm cov log tsheb roj hmab ib txwm muaj, tib neeg pib tshawb nrhiav cov log tsheb roj hmab hnyav. Cov log tsheb roj hmab hnyav yog ib hom log tshiab, uas yog ua los ntawm kev sib xyaw cov khoom siv roj hmab thiab cov khoom siv hlau. Lub log siv cov qauv tsim tshwj xeeb, uas tuaj yeem daws tau cov teeb meem ntawm kev muaj peev xwm tsis txaus, yooj yim deformation thiab lub neej luv luv uas muaj nyob rau hauv cov log tsheb roj hmab ib txwm muaj. Tib lub sijhawm, cov log tsheb roj hmab hnyav muaj qhov zoo ntawm qhov hnyav sib dua, lub neej ua haujlwm ntev, muaj peev xwm loj, tiv taus kev sib txhuam zoo thiab nqus tau zoo.
Niaj hnub nim no, lub log tsheb roj hmab hnyav tau ua ib feem tseem ceeb ntawm kev tsim khoom lag luam niaj hnub thiab kev thauj mus los, thiab nws tau siv dav hauv ntau yam khoom siv thauj mus los. Nws qhov kev tsim kho tshiab yog qhov tseem ceeb rau kev txhim kho kev tsim khoom lag luam niaj hnub thiab kev thauj mus los, thiab tseem muab rau peb kom yooj yim dua thiab ua haujlwm tau zoo dua.
Lub sijhawm tshaj tawm: Lub Ob Hlis-19-2024