4 Cov tswv yim tswv yim rau xaiv cov log tsheb muaj

1. Tus naj npawb ntawm cov log tsheb muaj 4 qhov sib xyaw ua ke ntau dua. Qhov loj ntawm cov lej ntawm cov lej, qhov zoo dua cov log tsheb muaj.
2. Yog tias tus lej zoo ib yam, nws yog qhov sib piv rau cov khoom siv. Muaj ntau cov khoom siv sab hauv hauv cov log tsheb, nylon, polyester fiber, polyamide, thiab hlau txheej khoom.
3. Tus naj npawb ntawm cov log tsheb sab txiav txim siab qhov toughness ntawm cov log tsheb no, uas yog, nws tsis yooj yim los ua cov log tsheb muaj pob lossis tawg ntawm cov log tsheb. Lub 2nd pem teb yog qhov zoo tshaj plaws, thiab pem teb 1 yog dav heev.
4. 3T yog hais txog qhov hnav qhov Performance index, tuav qib, thiab kub coefficient. Peb cov coefficients no feem ntau hu ua 3T coefficients. Qhov ntau dua qhov exponential tus nqi ntawm cov coefficient abrasion nyob rau hauv tib lub hom, qhov ntau resistant rau hnav, ntau abrasion coefficients ntawm hom tsis sib xws. Vim hais tias txawv hom kev ntsuam xyuas tus nqi sib txawv.
Cov qib tuav kuj yog los ntawm qib AA, A, B, thiab C4, thiab maj mam txo los ntawm siab mus rau qis. Lub siab kub coefficient kuj tau nkag siab zoo. Tsuas muaj 3 theem A, B, thiab C. Qhov ceev ceev, qhov kub thiab txias, qhov kub thiab txias. Qhov no muaj feem xyuam nrog kev ua haujlwm ntawm lub tsheb.