Peb yuav ob-sided daim kab xev, feem ntau nrog cov ntaub nplaum ruaj khov khoom, ces cov nplaum nplaum yog qhov tseem ceeb heev, cov nplaum nplaum tsis zoo feem ntau muaj ob yam hauv qab no:
I. Lub sij hawm luv luv thiab tsis muaj peev xwm hloov mus rau ib puag ncig:
Feem ntau cov ntaub nplaum nplaum yuav tawg tom qab lub sijhawm ntim khoom (nruab nrab ntawm 20 feeb thiab ib teev) thiab yuav tsis tuaj yeem rov muab tshuaj ntxiv, tshwj xeeb tshaj yog nyob rau hauv qhov txias txias thiab cua qhuav qhuav.
Ob, cov neeg pluag ob daim kab xev yog yooj yim tawg
Inferior daim kab xev yog ib qho yooj yim mus ua txhaum, lub zog yog tsawg heev, feem ntau muaj feem xyuam rau qhov zoo ntawm cov zaj duab xis.
Yog li cas peb xaiv daim kab xev?
Ib qho: Thawj qhov uas yuav tsum tau ua thaum koj tau txais daim kab xev ob sab yog xav tias nws puas nplaum txaus nrog koj txhais tes thiab seb koj puas tuaj yeem hnov koj xav tau.
Ob: Muab daim kab xev rau ntawm koj lub qhov ntswg thiab hnia. Yog tias cov ntxhiab tsw ntxhiab los yog tuab heev, qhov zoo ntawm cov kua nplaum tsis zoo, nws pom zoo kom tsis txhob yuav.
Peb: tib qhov tshwj xeeb (ntev, dav, ib txheej tuab) daim kab xev thawj zaug saib cov tuab ntawm ib txheej nplaum daim ntawv thiab daim kab xev tensile kuj. Nco ntsoov xaiv zoo tensile kuj. Xav pom koj xaiv tus neeg yuav khoom ntawm ply.
Qee cov lus qhia rau xaiv daim kab xev:
(1), yuav tsum xaiv tsis yooj yim rau tawg, siab viscosity;
(2) Qhov hnyav ntawm daim kab xev nplaum yuav tsum txaus;
(3) Ntawm daim kab xev, koj tuaj yeem nias daim kab xev nyuaj nrog koj cov ntiv tes los ntawm sab nraub qaum. Nws xav tias nyuaj heev. Tom qab ntawd daim kab xev yog nruj thiab tus naj npawb ntawm cov meters yog txaus, uas yog ntau npaum li cas ntev tshaj li qub thickness tab sis qhov ntev ntawm lub xoob daim kab xev.
(4) Koj tuaj yeem pom ntawm ib sab ntawm daim kab xev, daim kab xev nruj zoo nkaus li muaj zog, thiab cov ntaub nplaum xoob zoo li mos thiab muag, thiab qee qhov tseem muaj qhov khoob.