Qhov kev xeem zoo ntawmEVA hnabyog cov txheej txheem kev soj ntsuam zoo uas muaj ntau yam, suav nrog cov khoom siv lub cev, tshuaj lom neeg, cov qauv kev tiv thaiv ib puag ncig thiab lwm qhov ntev. Cov hauv qab no yog qee yam tseem ceeb ntawm kev sim thiab cov txheej txheem:
1. Kev ntsuas lub cev ua haujlwm
Kev ntsuas kev ua tau zoo ntawm lub cev feem ntau ntsuas cov khoom siv lub cev ntawm EVA hnab, suav nrog:
Hardness test: Lub hardness ntawm EVA hnab feem ntau yog kuaj los ntawm Shore A hardness test, thiab cov hardness ntau yog nyob nruab nrab ntawm 30-70
Lub zog tensile thiab elongation ntawm kev tawg: Lub zog tensile thiab elongation ntawm kev tawg ntawm cov khoom raug ntsuas los ntawm tensile test kom muaj kev cuam tshuam cov khoom siv thiab kev ruaj ntseg ntawm EVA hnab
Compression mus tas li deformation test: Txiav txim siab qhov compression tas li deformation ntawm cov khoom nyob rau hauv ib qho kev nyuaj siab los ntsuam xyuas lub durability ntawm EVA hnab
2. Kev ntsuas kub ua haujlwm
Kev ntsuas kev ua haujlwm thermal tsom rau kev ua haujlwm ntawm EVA hnab nyob rau hauv qhov kub thiab txias:
Melting point thiab thermal stability: Lub melting point thiab thermal stability ntawm EVA cov ntaub ntawv raug soj ntsuam los ntawm txawv scanning calorimetry (DSC) thiab thermogravimetric tsom xam (TGA)
Thaum tshav kub kub aging kuj: Ntsuam xyuas cov laus tiv thaiv ntawm EVA hnab nyob rau hauv qhov kub thiab txias ib puag ncig los xyuas kom meej tias cov khoom tseem muaj peev xwm ua tau zoo tom qab siv mus ntev.
3. Tshuaj ntsuam xyuas kev ua tau zoo
Kev ntsuas tshuaj lom neeg ntsuas qhov tsis kam ntawm EVA hnab rau tshuaj lom neeg:
Tshuaj tiv thaiv corrosion: ntsuas qhov tsis kam ntawm EVA hnab rau acid, alkali, ntsev thiab lwm yam tshuaj
Roj tsis kam: kuaj qhov ruaj khov thiab corrosion kuj ntawm EVA hnab hauv roj nruab nrab
4. Ib puag ncig adaptability xeem
Ib puag ncig adaptability kuaj xyuas qhov hloov pauv ntawm EVA hnab rau ib puag ncig yam:
Kev ntsuas huab cua: kuaj pom qhov tsis kam ntawm EVA hnab rau ultraviolet rays, av noo thiab kub hloov
Kev ntsuas kub tsis tshua muaj siab: ntsuas qhov ua tau zoo ntawm EVA hnab nyob rau hauv qhov kub thiab txias
5. Kev ntsuas ib puag ncig
Ib puag ncig tus qauv kuaj xyuas kom ntseeg tau tias EVA hnab ua tau raws li ib puag ncig thiab tsis muaj cov khoom phom sij:
RoHS Cov Lus Qhia: Cov lus qhia txwv tsis pub siv qee yam khoom phom sij hauv cov khoom siv hluav taws xob thiab hluav taws xob. Kev thov cov ntaub ntawv EVA hauv cov khoom siv hluav taws xob yuav tsum ua raws li cov lus qhia no
REACH Regulation: EU cov cai ntawm kev sau npe, kev ntsuam xyuas, kev tso cai thiab txwv cov tshuaj. Kev tsim thiab siv cov ntaub ntawv EVA yuav tsum ua raws li cov cai ntawm REACH Regulation
6. Transmittance thiab tev lub zog kuaj
Kev ntsuam xyuas tshwj xeeb rau EVA zaj duab xis:
Transmittance test: ntsuas lub teeb xa hluav taws xob ntawm EVA zaj duab xis, uas yog qhov tseem ceeb tshwj xeeb rau kev siv xws li hnub ci vaj huam sib luag
Peel zog test: kuaj lub tev lub zog ntawm EVA zaj duab xis thiab iav thiab cov ntaub ntawv rov qab los xyuas kom meej qhov kev ntseeg tau ntawm ntim
Los ntawm cov khoom kuaj saum toj no, qhov zoo ntawm EVA pob tuaj yeem raug soj ntsuam kom ntseeg tau tias lawv ua tau raws li qhov xav tau ntawm ntau yam kev thov. Thaum tsim thiab siv cov ntaub ntawv EVA, tuam txhab lag luam yuav tsum tau ua raws li cov txheej txheem thoob ntiaj teb, lub teb chaws thiab kev lag luam kom paub meej cov khoom zoo thiab kev nyab xeeb.
Post lub sij hawm: Nov-29-2024