Ib lub raj sab hauv, feem ntau hu ua "tube," yog ib lub voj voog elastic siv los tswj huab cua hauv lub log tsheb. Nws yog txawm peem rau nrog ib tug log valve rau inflation thiab tswj lub siab nyob rau hauv lub puab raj. Cov raj sab hauv feem ntau yog tsim los ntawm butyl roj hmab thiab muaj cov yam ntxwv hauv qab no:
1. Airtightness: Cov raj sab hauv yuav tsum muaj airtightness zoo los tiv thaiv huab cua kom zoo thiab ua kom lub log ruaj khov.
2. Thaum tshav kub kub tsis kam: Cov raj sab hauv yuav tsum muaj qee theem ntawm cov cua sov tiv thaiv kom tiv thaiv cov cua sov uas tsim los rau lub sijhawm ua haujlwm ntev thiab tiv thaiv kev puas tsuaj los ntawm kev kub dhau.
3. Elasticity: Cov raj sab hauv yuav tsum muaj elasticity zoo los tiv thaiv deformations los ntawm cov log tsheb quab yuam thiab rov qab mus rau lawv cov qub qub tom qab tso siab, ua kom cov log tsheb ua haujlwm zoo thiab kev tsav tsheb zoo.
4. Kev laus tsis kam: Cov raj sab hauv yuav tsum muaj kev tiv thaiv kev laus, ua rau lawv tiv taus cov teebmeem ntawm oxidation, UV hluav taws xob, thiab lwm yam ib puag ncig, yog li ncua lawv lub neej.
5. Qhov tsawg kawg nkaus deformation: Cov raj sab hauv yuav tsum muaj qhov tsawg kawg nkaus deformation, txhais tau tias lawv tuaj yeem rov qab los rau lawv cov qauv qub tom qab cov kabmob siab, ua kom lub log ruaj khov thiab ua haujlwm tau zoo.
Raws li qhov tseem ceeb ntawm cov log tsheb, cov raj sab hauv ua lub luag haujlwm tseem ceeb hauv kev nyab xeeb thiab kev ua haujlwm ntawm lub tsheb. Yog li ntawd, cov raj sab hauv zoo yuav tsum ua kom tau raws li cov lus hais saum toj no thiab tau txais kev tswj xyuas nruj kom ntseeg tau tias muaj kev ruaj ntseg thiab kav ntev.
