Kev sib raug zoo ntawm lub cev lub cev ntawm cov ntawv lim thiab lim kev ua haujlwm

1. Kev tshuaj xyuas ntau

Kev tsom xam ntau hauv cov lim dej feem ntau tshwm sim hauv ob yam: qhov hnyav thiab tus nqi ntawm cov lim. Rau lub lim, nws qhov chaw lim dej yog tsau. Nyob rau hauv ib qho chaw lim dej, qhov loj dua qhov ntau, qhov hnyav ntawm cov ntawv lim thiab qhov hnyav dua lub lim. Vim tias muaj feem ntau ntawm cov ntawv lim cov nqi hauv cov nqi lim, tus nqi kuj yog siab heev.

2. Thickness

Rau corrugated cylindrical cov ntxaij lim dej, cov tuab ntawm cov ntawv lim tuaj yeem txwv qhov siab tshaj plaws ntawm cov lim lim.

3. Nyuaj thiab tawg tsis kam

Kev nruj thiab tawg tsis kam sawv cev rau qhov deformation tsis kam, compressive tsis kam, siab tawv, thiab siab tawg tsis kam ntawm cov ntawv lim, uas tuaj yeem ua rau pom qhov zoo ntawm cov lim. Txawm li cas los xij, yog tias qhov tawv nqaij siab dhau lawm, nws yooj yim los ua nkig thiab cov lim dej ua rau puas tsuaj.

4. Resin cov ntsiab lus

Ntxiv resin rau lim ntawv yog ua kom nws cov tawv nqaij thiab cov duab thaum ua. Nyob ntawm kev siv, nws yog feem ntau ntawm 10% thiab 30%. Yog tias cov ntsiab lus resin siab dhau lawm, cov resin tuaj yeem yooj yim thaiv cov qauv ntawm cov ntawv lim.