Yog tias lub tsheb tuaj yeem pleev xim rau ntawm qhov chaw nres tsheb pabcuam, tom qab ntawd chrome qhov nyuaj nyuaj dua los kho. Txawm li cas los xij, yog tias koj paub txog physics thiab chemistry, thiab tseem pom cov khoom tsim nyog, koj tuaj yeem kho cov chrome plating koj tus kheej.
Tsim nyog
- - Grinder;
- - roj av lossis roj av;
- - cov hlau tsis muaj tais diav;
- - qhov chaw nres tsheb galvanic;
- - Khoom siv ntsuas (ntsuas, ntsuas sov);
- - tshuaj lom neeg thiab tshuaj electrolytes.
Cov Lus Qhia
Kauj ruam 1
Ntu, ntawm qhov uas nws yog qhov tsim nyog los kho cov txheej, txheej txheem nrog cov cuab yeej sib tsoo kom tshem tawm txhua qhov tsis xwm yeem, kom du tawm cov kev pheej hmoo thiab kab noj hniav. Thawj zaug xuab zeb saum npoo nrog ntxhib sanding txuas, tom qab ntawd maj mam txo tus naj npawb cia kom zoo nkauj thiab cov ntaub ntawv txuas. Yog li ntawd, koj yuav tsum tau txais ib tus kheej, txawm tias nto.
Kauj ruam 2
Degrease nto nrog roj av lossis roj av. Txau cov txhuam rau hauv kua thiab ntxuav ntu ntawm av, stains, xeb thiab teev. Yog hais tias qhov chaw muaj ntau cov av, kho nws hauv ob peb da dej uas muaj roj av lossis roj av.
Kauj ruam 3
Ntxuav tawm ib co kua nplaum ntawm alkali, thawj zaug hauv kub, tom qab ntawd hauv dej txias. Yog tias tsim nyog, ntxiv cov pickling ntxiv kom tshem tawm cov khoom seem ntawm cov teev lossis oxides.
Kauj ruam 4
Kev xaiv txais yuav tsum tau ua tam sim ntawd ua ntej txhawm rau ib feem ntawm chav da dej plating, nws yuav pab qhia tawm cov qauv hlau thiab muab cov nplaum zoo dua. Raws li kev daws, noj qhov sib xyaw ntawm hydrochloric (5%) thiab sulfuric (10%) kua qaub, nrog rau dej (85%). Qhov ceev tam sim no yuav tsum tsis pub tshaj 10A / dm2. Tom qab xaiv tau, yaug ib feem hauv dej sov, ceev faj kom tsis txhob kov nws nrog koj txhais tes.
Kauj ruam 5
Cuam ntu qhov nrog pyrophosphate lossis acidic electrolytes. Ua ntej, de cov khoom hauv 10% sodium pyrophosphate tov rau 5-10 feeb, ntawm chav sov. Hauv qhov no, qhov ceev tam sim no yuav tsum yog 5-6A / dm2.
Kauj Ruam 6
Txhawm rau tsim ib txheej ntxiv tom qab pyrophosphate lossis cyanide tooj liab plating, siv cov tshuaj electrolyte ntawm sulfuric acid (50-75 g / litre) thiab tooj liab sulfate (200 g / litre) ntawm qhov ceev ntawm 1-2 A / m2. Nco ntsoov ntxuav cov roj ntsha electrolyte hauv cov kua dej acidic.
Kauj Ruam 7
Chrome plating feem. Txuas lub feem nrog xaim txuas nrog rau qhov tsis zoo tam sim no, xyuas qhov kev cia siab ntawm cov tiv tauj. Nws yog qhov zoo dua los npaj ua ntej cov khoom siv nrog uas ib feem yuav muab raus dej hauv chav dej kom ntseeg tau tias yooj yim siv thiab hluav taws xob tsawg.
Kauj ruam 8
Siv cov lus sib xyaw hauv qab no ua ib qho electrolyte: cryolite - 0.2 g / litre, chrome andigrid - 250 g / litre, sodium nitrate - 3-5 g / liter, chromine - 2-3 g / litre. Pib nrog qhov ceev ntawm tam sim no ntawm 25-30 A / dm2, tom qab 1-2 feeb nce nws mus rau 20 A / dm2. Hauv hom no, ua txuas ntxiv cov txheej txheem rau 7-10 feeb ntawm chav sov.
