Electroplating yog ib qho kev tiv thaiv kev kho ntawm cov ntiv taw xws li hlau thaiv. Raws li ib txwm muaj, qhov zoo ntawm electroplating yog tsuas yog ntsuas los ntawm nws qhov kev xeb ntawm corrosion, ua raws li los ntawm tsos. Corrosion tsis ua hauj lwm yog qog lub chaw ua hauj lwm ntawm qhov khoom, teeb tsa ua qhov kev xeem, thiab kev kuaj kev txhuam. Qhov zoo ntawm cov hlau phaj khoom plating yog tswj los ntawm cov nram qab no:
1, tsos
Cov nplaim ntawm cov khoom siv hlau tsis pub tuaj yeem ua rau tsis tshua zoo li, hlawv, ntxhib, grey, tawv nqaij, khib nyiab, thiab pom tseeb. Pinhole pitting, dub plating, xoob hlais, ntes, ntxig, thiab Piav Qhia ntau heev.
2, hydrogen brittle
Lub sijhawm ua thiab tuav ntawm cov hlau ciav hlau fasteners, tshwj xeeb tshaj yog thaum lub sij hawm de lauj thiab caustic ntxuav ua ntej plating thiab tom qab electroplating, lub nto absorbs atoms hydrogen, thiab cov hlau txheej tom qab ces nqa tau hydrogen. Thaum lub khawm nruj nruj, hydrogen yog pauv mus rau feem ntau ntawm cov kev nyuab siab, ua rau lub siab ua kom dhau lub zog ntawm lub hauv paus hlau thiab tsim kom muaj ib qho chaw tawg me ntsis. Hydrogen yog ib qho tshwj xeeb heev thiab ceev nrooj penetrates rau hauv khiv tsim fissures.
3, plating thickness
Lub neej ua hauj lwm ntawm ib tug kho qhov muag ntsia hlau loj nyob rau hauv ib qho chaw hauv corrosive yog proportional to nws txheej thickness. Qhov kev pom zoo ntawm plating thickness yog 0.00015 rau 0.0005 nyob rau hauv. (4 txog 12 um). Kub dip galvanizing: qhov nruab nrab cov thickness yog 54 um (tus nominal diameter yog ≤ 3/8 yog 43 um), thiab cov thickness 43hm (tus nominal diameter ≤ 3) / 8 yog 37um).
4, txheej faib
Siv cov txheej txheem sib txawv siv ntau txoj kev tso cov txheej pov rau ntawm lub khawm. Thaum cov hlau thaiv cov khoom khawm khoom plated, plated hlau tsis zoo li tso rau ntawm ntug peripheral, thiab ib txheej thicker yog tau ntawm lub ces kaum. Nyob rau hauv txoj hlua khawm ntawm lub khawm, cov thickest txheej yog nyob rau ntawm lub khob ntawm cov xov, maj thawm raws sab ntawm cov xov, tso cov thinnest rau hauv qab ntawm tus hniav, thaum kub dip galvanizing yog qhov ntxeev lus xwb, thicker txheej muab tso rau hauv lub ces kaum thiab Hauv qab ntawm xov, tus neeg kho tshuab plating ntawm cov hlau plated nyhav tib yam nkaus li cov cua kub ntses txheej, tab sis yog smoother thiab ntau ntau dua li ntawm tag nrho nto.