I. Kev tshuaj xyuas qhov muag
Txoj kev: Saib qhov chaw nrog qhov muag liab qab lossis lub iav tsom iav nyob rau hauv lub teeb ntuj lossis lub teeb pom kev zoo.
Txuj Ci Txuj Ci: Qhov saum npoo yog du thiab sib xws, tsis muaj qhov tsis xws luag xws li blistering, tev, me ntsis, roughness, lossis xim tsis sib xws.
II. Kev ntsuas Thickness
Txoj kev:
Magnetic Method: Muaj feem xyuam rau steel substrates, thickness yog xam los ntawm kev hloov magnetic flux.
Eddy Current Method: Muaj feem xyuam rau cov uas tsis yog -Magnetic substrates (xws li txhuas thiab tooj liab), thickness yog ntsuas los ntawm eddy tam sim no nyhuv.
Metallographic Method: Ntsuas nyob rau hauv lub tshuab kuaj kab mob tom qab txiav cov qauv; high precision tab sis puas rau tus qauv.
Txuj Ci Txuj Ci: Lub thickness yuav tsum ua raws li cov qauv tsim; Feem ntau, chrome plating thickness yog ntau dua los yog sib npaug rau 20μm.
III. Bond Strength Test
Txoj kev:
Bending Test: Khoov lub chrome plating pas nrig 180℃thiab saib seb nws puas tawm.
Hla- txiav kev xeem: Tom qab ntsuas tus ntoo khaub lig, siv daim kab xev thiab tev nws tawm; ib cheeb tsam peeling ntawm<5% is considered qualified.
Cov qauv siv tau: Cov txheej txheem yuav tsum tsis muaj tev thiab tawg.
IV. Corrosion Resistance Test
Txoj kev: ntsev tsuag tshuaj (xws li, 5% NaCl tov, 35 degree, 24 teev).
Cov qauv siv tau: Cov txheej txheem yuav tsum tsis muaj xeb, blistering, thiab lwm yam corrosion phenomena.
V. Hardness Test
Txoj kev: ntsuas nrog microhardness tester; kev xaiv load yuav tsum tsim nyog.
Cov qauv siv tau: Lub hardness ntawm chromium plating txheej feem ntau ntau dua los yog sib npaug rau 60 HRC.
VI. Test Report
Cov ntsiab lus: suav nrog cov qauv piav qhia, kuaj hauv paus, kuaj cov khoom thiab cov txheej txheem, cov txiaj ntsig kev xeem, kev tshuaj ntsuam xyuas, thiab cov lus xaus.
Piv txwv li: Kev ntsuas thickness yuav tsum sau tus nqi nruab nrab ntawm ntau lub ntsiab lus ntsuas; Kev ntsuam xyuas corrosion yuav tsum sau cov qib corrosion thiab lub sijhawm.
VII. Kev ceev faj txog kev ua haujlwm
Instrument Calibration: Thickness gauges thiab lwm yam khoom siv yuav tsum tau calibrated ua ntej kuaj.
Environmental Stability: Tsis txhob cuam tshuam los ntawm lwm yam xws li kub, av noo, thiab magnetic teb.
Kev Ua Haujlwm Txuj Ci: Ua raws li cov txheej txheem nruj me ntsis kom ntseeg tau tias cov txiaj ntsig raug.
VIII. Standards thiab Standards
International Standards: ISO 2178 (Magnetic Method), ISO 2360 (Eddy Current Method).
Lub teb chaws tus qauv: GB / T 4956 (Magnetic Method), GB / T 4957 (Eddy Current Method).
IX. Kev daws teeb meem
Txheej tsis sib xws: Tshawb xyuas siv cov txheej txheem sib nqus lossis eddy tam sim no; kho hauv zos lossis rov- plat tag nrho cheeb tsam.
Tsis zoo Adhesion: Tshawb xyuas cov txheej txheem kev kho substrate thiab ua kom zoo dua cov txheej txheem electroplating.
X. Cov Lus Qhia Ua Haujlwm
Batch Testing: Ua ntej cov txheej txheem sib nqus los yog eddy tam sim no rau kev ceev thiab tsis yog -kev sim ua puas tsuaj.
High Precision Requirements: Siv X-ray fluorescence los yog metallographic txoj kev, tab sis tus nqi siab dua.
Ntev -Lub Sij Hawm Siv: Tsis tu ncua kuaj thickness thiab adhesion los tiv thaiv txheej tsis ua hauj lwm.
