Koj ua li cas kuaj txheej thickness? Dab tsi yog txoj hauv kev?
Kev kuaj kev puas tsuaj: Metallography (section soj ntsuam), txoj kev sib cais (tshuaj lom neeg ua raws li qhov hnyav).
Tsis yog-kev kuaj kev puas tsuaj: Sib nqus thickness ntsuas (rau ferrous substrates), Eddy tam sim no thickness ntsuas (rau tsis yog-ferrous substrates).
Yuav ua li cas yog qhov corrosion kuj ntawm ib txheej kuaj?
Neutral salt spray test (NSS): Qhov kev sim siv ntau tshaj plaws, uas ntsuas lub sij hawm corrosion ntawm txheej hauv ib puag ncig ntsev tsuag.
Acetic acid spray test (ASS): Ib qho kev xeem nruj dua, simulating ib puag ncig acidic.
Immersion test: Immersing ib feem nyob rau hauv ib qho kev daws teeb meem (xws li dej ntsev) thiab soj ntsuam qhov corrosion.
Dab tsi yog cov txheej txheem rau kev kuaj adhesion?
Khoov xeem: Khoov qhov 180℃thiab saib yog tias cov txheej tev tawm.
Kev kuaj khawb: Siv cov hniav los ua tus ntoo khaub lig-zoo li tus txiav, siv daim kab xev, thiab tom qab ntawd muab txiav tawm. Yog tias tsis muaj tev tawm, txheej txheej dhau mus.
Impact test: Siv ib lub rauj hnyav los tawm tsam cov txheej txheem los xyuas cov kab nrib pleb lossis tev.
Yuav ua li cas cov ntsiab lus impurity nyob rau hauv cov tshuaj plating yuav tswj tau?
Lim cov tshuaj plating tsis tu ncua kom tshem tawm cov khoom impurities. Txoj kev "electrolytic purification method" siv tsawg-tam sim no electrolysis kom tshem tawm cov hlau tsis huv (xws li tooj liab thiab hlau).
High -cov ntaub ntawv purity raw yog siv thaum ntxiv cov reagents kom txo tau impurity qhia.
Dab tsi yog cov txheej txheem rau kev txiav txim siab qhov zoo ntawm cov txheej?
Tsis muaj teeb meem xws li pinholes, tawg, flaking, los yog blackening.
Cov coatings ci yuav tsum zoo ib yam uas tsis muaj xim sib txawv; matte coatings yuav tsum muaj xim zoo ib yam.
Cov tsos mob yuav tsum ua raws li cov neeg siv khoom lossis cov qauv kev lag luam (xws li GB / T 9799 thiab ISO 2081).