Yuav siv sijhawm ntev npaum li cas los hloov cov nyom cuav hauv cov chaw ua si football? Lub sijhawm hloov cov nyom!

Peb pom tau tias ntau yamcov chaw ua si footballtam sim no siv cov nyom dag. Cov khoom siv no muaj cov txiaj ntsig pheej yig thiab pheej yig, tab sis nws siv tsis tau ntev. Feem ntau yuav tsum tau hloov nws ntev npaum li cas? Cia kuv qhia koj txog lub sijhawm hloov cov nyom.

Feem ntau, cov nyom dag hauv cov chaw ua si football yuav tsum tau soj ntsuam tom qab li 10 xyoo. Yog tias nws tsis ua raws li qhov yuav tsum tau siv, nws yuav tsum tau hloov. Qhov no nyob ntawm kev siv peb cov ntaub ntawv ib txwm thiab lub neej ua haujlwm, xws li cov nyom dag. Nyob ntawm kev siv, lub sijhawm xav tau rau kev hloov pauv kuj txawv. Qhov no tsuas yog paub tom qab kev tshuaj xyuas, lossis yog tias nws zoo li nws tsis tuaj yeem tiv thaiv cov neeg ua si, nws yuav tsum tau hloov.

Cov chaw ua si football feem ntau yog ua los ntawm cov xuab zeb thiab cov nyom. Cov av txheej ntawm cov nyom football feem ntau siv cov xuab zeb, thiab 30cm sab hauv thiab sab nraud ntawm cov chaw ua si football yog ua los ntawm cov xuab zeb tag nrho. Xyoo 1990, txhawm rau kom tiv taus kev raug tsuj, qhov chaw tau qhia los ntawm kev sib tham txog cov nyom sib tw nees. Cov ntaub nylon mesh raug nkag mus rau hauv cov av txheej kom zoo dua qhov kev tiv thaiv kev hnav ntawm cov av txheej. Cov tawv tsiaj Poa annua thiab Manila nyom yog cov tseem ceeb. Cov nyom dag hauv chaw ua si football feem ntau yog ua los ntawm cov nyom tufts. Hauv qab ntawm thawj txheej yog ua los ntawm cov khoom siv polypropylene, thiab hauv qab ntawm txheej thib ob yog coated nrog cov kua nplaum muaj zog.

Muaj ntau lub tshav pob football uas ua los ntawm cov nyom dag. Qee lub koom haum loj thiab nruab nrab hauv txawv teb chaws siv cov nyom tiag tiag, tab sis tsawg heev. Yog tias muaj ib qho ntawm cov xwm txheej hauv qab no tshwm sim, hloov lawv tam sim ntawd: 1. Qhov kawg hauv qab puas lawm. Yog tias cov ntaub elastic tsis tuab txaus lossis tsis zoo, nws yuav laus thiab lwj thaum ntxov, txo lub neej ua haujlwm ntawm cov nyom dag. 2. Cov khoom me me PVC tab tom laus. Cov nyom dag hauv tshav pob football feem ntau yog puv nrog cov xuab zeb quartz thiab cov khoom me me PVC. Cov khoom me me PVC yuav laus nrog lub sijhawm siv (poob qhov ductility, tawv, txav mus rau hauv qab, thiab lwm yam) thiab sib sau ua ke ntawm qab ntawm cov nyom fibers, ua rau cov yam ntxwv ntawm kev ua si ntawm lub tshav pob football raug puas tsuaj loj heev. Hauv qhov no, yog tias cov nyom nws tus kheej tsis tau laus, ces kev hloov cov khoom me me tuaj yeem rov qab tau qhov elasticity qub. 3. Kev hloov pauv yooj yim. Cov nyom dag yog ua los ntawm cov pob zeb lossis cov xuab zeb asphalt. Yog tias kev ua haujlwm tsim kho tau ua raws li tus qauv, qhov zoo ntawm cov khoom siv raw tau dhau, thiab nws tsis siv ua txhaum cai (xws li cov tshuab loj dov cov nyom), ces lub neej ua haujlwm ntawm cov nyom dag tuaj yeem txog kaum xyoo. nce thiab nqis.

Cov lus saum toj no yog "thaj chaw ncaws pobLub sijhawm hloov khoom siv” tau qhia rau koj. Kuv vam tias nws yuav pab tau koj. Yog tias nws yog cov nyom dag, nws yuav tsum tau hloov ib zaug txhua 10 xyoo ntawm kev siv ib txwm. Lwm cov ntaub ntawv yuav tsum tau hloov raws li qhov tsim nyog.