Txawm hais tias cov cua sov shrinkable raj tau dav siv hauv lub neej, tseem muaj ntau tus phooj ywg uas tsis paub txaus txog kev siv thiab xaiv cov cua sov shrinkable raj. Hauv cov ntsiab lus hauv qab no, peb yuav qhia koj ntau yam uas yuav tsum tau xav txog hauv kev yuav khoom ntawm cov cua sov shrinkable raj.
Paub meej raws li hauv qab no:
Ua ntej, peb yuav tsum xav txog yuav ua li cas xaiv lub tshav kub shrink tube loj: xaiv txoj cai tshav kub shrink tube loj yuav tsum tau noj qhov tseeb ntsuas koj tus kheej. Siv lub vernier caliper lossis tus pas ntsuas, koj xav ntsuas lub cheeb ntawm qhov tsawg tshaj plaws thiab qhov loj tshaj plaws. Xaiv cov cua sov shrink tubing uas yog nees nkaum mus rau peb caug feem pua loj dua koj qhov kev ntsuas loj tshaj plaws. Ib qho ntxiv 20 mus rau 30 feem pua yuav tso cai rau chav rau lub raj txuas ntxiv kom swb hla qhov loj tshaj plaws. Tsis txhob hnov qab koj qhov ntsuas me me kom paub tseeb tias cov cua sov shrink tubing muaj qhov siab txaus kom tau qhov nruj haum nrog qhov tsawg tshaj plaws uas koj xav npog. Thaum kawg, yuav me ntsis ntxiv thaum koj xaj, vim qee qhov cua sov shrink tubing shrinks lengthwise ib yam nkaus! Txoj kev ntsuas no yog hu ua "longitudinal shrinkage" specification.
Dab tsi yog qee qhov kev ntsuas tseem ceeb uas yuav tsum tau xav txog thaum xaiv cov cua sov shrink tubing: qhov siab tshaj plaws txoj kab uas hla ntawm cov khoom yuav tsum tau tshav kub thiab qhov kub thiab txias yog ob yam tseem ceeb uas yuav tsum tau xav txog thaum koj xaiv lub tshav kub ntsws tubing. Vim tias cov khoom no sib txawv ntawm qhov loj me, thermal shrinkage kuj yog ib qho tseem ceeb rau kev xav. Thiab vim hais tias lub shrinkage ntawm lub tshav kub shrinkable raj yuav tsum tau cua sov sab nraud, qhov kub tsis kam ntawm lub tshav kub shrinkable khoom kuj yog ib qho tseem ceeb qhia rau xav txog.
