Kev sim cov txheej txheem rau hmoov txheej daim ntawv thov txheej txheem

KEV TIV THAIV RAU POWDER txheej

Cov kev xeem yog tsim los rau ob lub hom phiaj: 1. Kev ntseeg tau ntawm kev ua haujlwm; 2. Kev tswj xyuas zoo

(1) GLOSS Test (ASTM D523)

Test coated tiaj vaj huam sib luag nrog Gardener 60 degree meter. Txheej yuav tsum tsis txhob sib txawv + lossis - 5% los ntawm cov ntaub ntawv yuav tsum tau ua ntawm txhua yam khoom siv.

(2) BENDING TEST (ASTM D522)

Txheej ntawm .036 nti tuab phosphated steel vaj huam sib luag yuav tsum tiv taus 180 degree khoov tshaj 1/4 "mandrel. Tsis muaj crazing lossis poob ntawm adhesion thiab tiav ntawm qhov khoov tuaj yeem raug tshem tawm nrog 3M Y-9239 daim kab xev.

(3) ASTM D3363 Kev Ntsuas Hnyav

Faber Castell ntoo xaum yog siv rau hauv hardness ntawm 1,2,3,4,. Txheej yuav tsum tsis muaj cov cim los ntawm 2H mem hluav.

 (4) CROSS HATCH ADHESION TEST (ASTM D3359)

Sau ntawv raurallel kab los ntawm txheej rau substrate, 1/4 "sib nrug deb ntawm ib nti. Sau lwm txheej parallel kab 1/4 "sib nrug thiab perpendicular rau thawj txheej. Siv daim nplaum nplaum ces tshem tawm maj mam. Cov txiaj ntsig yuav tsum tsis txhob nqa cov hmoov kho ntawm cov kab sau ntawv.

(5) CHEMICAL RESISTANCE TEST (ASTM D1308)

Muab kwv yees li 10 tee ntawm cov kuab tshuaj ntsuam xyuas, suav nrog 95% los ntawm qhov hnyav toluene thiab 5% los ntawm qhov hnyav Methal Ethyl Keytone rau saum npoo ntawm txheej. Cia sawv ntsug rau 30 vib nas this. So nrog cov ntaub mos, qhuav. Txheej yuav tsum tsis pub ntau tshaj ib lub voj voog me ntsis.

(6) IMPACT Test (ASTM D2794)

Txheej ntawm .036 inch tuab phosphated steel vaj huam sib luag yuav tsum tiv thaiv kev cuam tshuam nrog 1/2 "Garder impact tester pob ntawm 26 nti phaus ncaj qha thiab thim rov qab. Tsis muaj grazing los yog poob ntawm adhesion. Kev ua tiav yuav tsis tuaj yeem raug tshem tawm ntawm thaj tsam cuam tshuam nrog 3M Y-9239 daim kab xev.

(7) ASTM B117 KEV KAWM TXUJ CI

Siv 5% ntsev tov ntawm 92-97 degrees F hauv lub thawv huab cua kaw. Scribe X nyob rau hauv steel zinc phosphated xeem vaj huam sib luag rau liab qab hlau. Tshawb xyuas txhua 24 teev. Xaus kev xeem thiab tag nrho cov sij hawm tom qab 1/4 "creepage los ntawm scribed cheeb tsam. Creepage yuav tsum tsis pub tshaj 1/4 "nyob rau hauv ob qho tib si kev taw qhia los ntawm script line tom qab 500 teev raug.

KEV KAWM TXOJ CAI RAU POWDER COATING