Electroplating yog txheej txheem ntawm plating ib txheej nyias ntawm lwm yam hlau los yog alloys rau saum npoo ntawm tej yam hlau siv lub hauv paus ntsiab lus ntawm electrolysis. Nws yog txheej txheem ntawm kev siv electrolysis los txuas ib txheej ntawm cov yeeb yaj kiab hlau rau saum npoo ntawm cov hlau los yog lwm yam khoom siv los tiv thaiv cov hlau oxidation (xws li xeb), txhim kho hnav tsis kam, hluav taws xob conductivity, muaj kev cuam tshuam cov khoom, corrosion kuj (tooj liab sulfate, thiab lwm yam. .) thiab txhim kho qhov tsos.
Electroplating tau muab faib ua cov txheej txheem tshwj xeeb xws li tooj liab plating, kub plating, nyiaj plating, chrome plating, npib tsib xee plating, thiab galvanizing. Hauv kev tsim khoom, tshwj xeeb tshaj yog galvanizing, npib tsib xee plating, thiab chrome plating yog feem ntau siv. Yog li dab tsi yog qhov txawv ntawm peb?
01
Zinc, npib tsib xee thiab chrome plating
1) Galvanized
Galvanizing yog hais txog cov txheej txheem kho saum npoo uas coated txheej zinc ntawm cov hlau, alloys lossis lwm yam khoom siv rau kev zoo nkauj thiab tiv thaiv xeb.
Nta: tus nqi qis, dav dav corrosion kuj, silvery dawb xim.
Daim ntawv thov: screws, circuit breakers, industrial khoom, thiab lwm yam.
(2) Nickel plating
Cov txheej txheem ntawm plating ib txheej ntawm npib tsib xee rau ntawm cov hlau los yog qee yam tsis yog hlau los ntawm electrolysis los yog chemical method hu ua nickel plating.
Nta: zoo nkauj, tuaj yeem siv rau kev kho kom zoo nkauj, tus nqi siab, txheej txheem me ntsis, cov xim yog silvery dawb thiab yellowish.
Daim ntawv thov: txuag hluav taws xob lub teeb tuav, npib, kho vajtse, thiab lwm yam.
(3) Chrome plating
Chromium yog ib qho ci dawb hlau nrog me ntsis bluish tint. Cov txheej txheem ntawm electrolytically lossis chemically plating ib txheej ntawm chromium ntawm cov hlau lossis qee cov hlau tsis yog hu ua chrome plating.
Nta: Muaj ob hom chrome plating, thawj tus yog rau kho kom zoo nkauj, zoo li ci ntsa iab, abrasion kuj zoo dua, lub peev xwm los tiv thaiv xeb tsis zoo li galvanized, thiab nws yog qhov phem tshaj oxidation; Qhov thib ob yog los ua kom lub hardness thiab hnav tsis kam ntawm hlau qhov chaw, thiab lwm yam, uas yog lub functionality ntawm ib feem.
Daim Ntawv Thov: Ci ntsa iab qhov chaw, cov cuab yeej, faucets, thiab lwm yam ntawm cov khoom siv hauv tsev, hluav taws xob thiab lwm yam khoom siv.
02
Qhov yooj yim tshaj plaws sib txawv ntawm peb electroplating
Chromium plating feem ntau yog los txhim kho qhov tawv tawv, zoo nkauj tsos thiab tiv thaiv xeb. Chromium plating muaj tshuaj lom neeg ruaj khov thiab tsis hnov mob hauv alkali, sulfide, nitric acid thiab feem ntau cov organic acids, tab sis nws tuaj yeem yaj hauv hydrohalic acid (xws li hydrochloric acid) thiab kub sulfuric acid. Vim tias chrome tsis hloov xim, nws tuaj yeem tswj nws lub peev xwm cuam tshuam rau lub sijhawm ntev thaum siv, uas zoo dua li nyiaj thiab npib tsib xee. Cov txheej txheem feem ntau yog electroplating.
Nickel plating feem ntau yog hnav-resistant, tiv thaiv corrosion, anti-xeb, feem ntau thinner, thiab cov txheej txheem muab faib ua ob hom: electroplating thiab tshuaj.
Galvanized feem ntau zoo nkauj thiab tiv thaiv xeb. Zinc yog cov hlau nquag uas tuaj yeem ua rau cov kua qaub, yog li nws muaj kev tiv thaiv corrosion tsis zoo thiab yog qhov pheej yig tshaj ntawm peb.
Qhov sib txawv ntawm tus nqi yog tias chrome plating yog qhov kim tshaj plaws, ua raws li npib tsib xee, thiab zinc yog qhov pheej yig tshaj. Ntawm lawv, khib plating thiab chim plating yuav tsum txawv. Khib plating yog kim thiab chim plating yog pheej yig.
Tom qab nag hmo heev, ib txhia phooj ywg hais tias "Tsis yog, nws tseem yog tib neeg ruam thiab tsis meej". Ces tus editor tsuas tuaj yeem qhia koj tias kuv yuav tsis meej pem tom qab nagging ib pliag. Tom qab ntawd paub qhov txawv ntawm xim.
Chrome plating yog ci dawb, npib tsib xee plating yog me ntsis daj, galvanized nyiaj dawb (qhov tseeb, muaj xim zinc, grey zinc, matt chrome, ci chrome, dawb npib tsib xee, dub nickel, thiab lwm yam.)
03
nthuav kev paub
1. Electroplating ntau lawm yog tsuas yog qias neeg los ntawm cov hlau hnyav hauv cov dej phwj tuaj thiab cov dej phwj tuaj. Lub xeev tau nruj me ntsis tswj kev nthuav dav ntawm kev lag luam electroplating thiab txo nws txhua xyoo.
2. Cov txheej txheem electroplating hauv kuv lub tebchaws feem ntau yog zinc plating, tooj liab plating, npib tsib xee plating, thiab chrome plating, ntawm cov zinc plating nyiaj rau 50 feem pua, thiab tooj liab, chromium, thiab npib tsib xee plating account rau 30 feem pua.
3. Yog tias lub hom phiaj yog los tiv thaiv xeb, zinc lossis cadmium plating tuaj yeem siv tau; yog tias qhov tsom mus tiv thaiv kev hnav, npib tsib xee lossis chrome plating yog qhov kev xaiv zoo tshaj plaws.
