Lub log tawv yog ib hom tshwj xeeb ntawm lub tsheb log tsheb, uas yog qhov tsim nyog rau cov tsheb tshwj xeeb xws li cov tsheb thauj nyiaj, tsheb tiv thaiv kev kub ntxhov, tsheb tiv thaiv kev ua phem, tsheb tsav tsheb, thiab tshuab cav ntoo.
Khoom siv cov log tsheb mas siv nyob rau hauv siab load, thiab cov roj hmab compound siv yog qhov yuav tsum muaj hnav tsis kam thiab siab tsis kam, nrog lub siab hardness, tsis tu ncua elongation kev ntxhov siab, zoo hnav tsis kam thiab tsis tshua muaj kev cuam tshuam.
Qhov zoo ntawm cov log tsheb cov khoom tau
1. Cov log tsheb muaj lub zog muaj kev tiv thaiv kev nyab xeeb thiab tuaj yeem txhim kho kev ua haujlwm.
2. Cov qauv qauv tsim ntawm cov log tsheb tau tsim nyog, uas tuaj yeem xyuas kom lub log tsheb muaj kev siv tau zoo dua.
3. Lub log tawv siv kev cai tsim cov khoom siv qib siab thiab thev naus laus zis. Cov.
4. Cov log tsheb tsis tuaj yeem tuaj yeem daws cov teeb meem ntawm lub log tsheb, lub nplhaib ntawm lub ntsej muag thiab cov khoom tawg.