Lub tooj liab bar ntawm lub tshuab nqus tsev electroplating hluav taws xob cua sov raj tom qab ntxuav alkali

Lub tooj liab bar ntawm lub tshuab nqus tsev electroplating hluav taws xob cua sov raj tom qab ntxuav alkali

 

1) Sib tsoo ntawm qhov chaw ntawm tooj liab nrog cov ntawv xuab zeb thiab chav ntawm 100 degree rau 15min;

 

2) Tom qab kev kho chav, cov tooj liab tau muab tso rau hauv cov tshuaj alkaline ntawm 70 degree rau alkaline ntxuav rau 38 feeb, thiab tom qab ntawd cov tshuaj alkali residual nyob rau saum npoo ntawm tooj liab yog rinsed nrog dej huv;

 

3) Muab cov tooj liab tom qab alkali ntxuav hauv cov kua qaub ntawm 35 degree rau 15min, thiab tom qab ntawd yaug cov kua qaub seem ntawm qhov chaw ntawm tooj liab nrog dej huv;

 

4) Qhuav lub pickled tooj liab bar;

 

5) Muab cov kab tooj liab ua tiav hauv cov kauj ruam 4) hauv lub tank electroplating rau electroplating, thiab cov qauv tshuaj electroplating yog: 75g / L ntawm tin sulfate, 25ml / L ntawm sulfuric acid, thiab 4ml / L ntawm S-150 B gloss;

 

6) Kev kho cua sov ntawm cov kab plated tooj liab ntawm 850 degree kom tau txais cov khoom tiav.

Cov muaj pes tsawg leeg ntawm peb alkalis ntawm lub tshuab nqus tsev electroplating hluav taws xob cua sov raj

 

Cov mis mos classic muaj sodium hydroxide, sodium carbonate thiab trisodium phosphate thiaj li hu ua "tri-alkali", thiab qhov kub thiab txias yog siab heev, feem ntau ncav cuag li 90 degree. Qhov tseeb, cov tshuaj degreasing no tsis muaj txiaj ntsig zoo rau feem ntau ntawm cov khoom tam sim no. Alkaline daws nyob rau hauv qhov kub thiab txias tsuas tuaj yeem saponify tsiaj thiab zaub roj, uas yog, cov roj ua cov dej-soluble xab npum thiab ntxuav tawm; Txawm li cas los xij, feem ntau ntawm cov roj ntawm cov khoom siv hluav taws xob tam sim no yog cov roj ntxhia, uas tsis tuaj yeem sib xyaw nrog cov roj ntxhia. Cov lye muaj cov tshuaj tiv thaiv saponification, yog li cov roj tsuas tuaj yeem raug tshem tawm los ntawm qhov kub ntawm cov tshuaj, tab sis tsis tag.

Lub tshuab nqus tsev electroplating hluav taws xob cua sov raj tshuab tsis txaus

 

1) Sib tsoo qhov chaw ntawm tooj liab nrog cov ntawv xuab zeb, thiab kho nws nrog chav ntawm 100-110 degree rau 10-20min;

 

2) Tom qab kev kho cua sov, muab cov tooj liab tso rau hauv cov tshuaj lye ntawm 70-75 degree rau alkaline ntxuav rau 30-40min, thiab tom qab ntawd yaug cov tshuaj lye residual rau saum npoo ntawm tooj liab nrog dej huv;

 

3) Muab cov alkali-ntxuav-ntxuav tooj liab bar hauv cov kua qaub ntawm 30-35 degree rau 10-15min, thiab tom qab ntawd yaug cov kua qaub uas seem nyob rau saum npoo ntawm cov tooj liab nrog dej huv;

 

4) Qhuav lub pickled tooj liab bar;

 

5) Muab cov kab tooj liab ua tiav hauv cov kauj ruam 4) hauv lub tank electroplating rau electroplating, thiab cov qauv tshuaj electroplating yog: tin sulfate 70-80g / L, sulfuric acid 25-30ml / L, S{{ 4}}B gloss agent 3.5-5ml/L;

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