Formula thiab txheej txheem rau ceramic electroplating ua ntawm hluav taws xob cua sov raj

Formula thiab txheej txheem rau ceramic electroplating ua ntawm hluav taws xob cua sov raj

① Degreasing tus neeg sawv cev

Sodium carbonate 20g / L

Sodium phosphate 10g / L

OP emulsifier 2g / L

Ntxiv dej rau l

Cov txheej txheem txheej txheem: kub 80 feem pua, lub sij hawm 20-30 feeb.

② Nto coarsening

Sulfuric acid l 25 mL / L

Hydrofluoric acid 125 mL / L

Chromic anhydride 65g / L

Cov txheej txheem txheej txheem: kub ntawm chav tsev kub, lub sij hawm 2-3 feeb.

③ Kev xav

Stannous chloride dihydrate 10-20g/L

Hydrochloric acid l0-20g/L

Ntxiv dej rau 1L

Process conditions: pH>1, kub ntawm chav tsev kub, lub sij hawm 5-10 feeb.

④ Kev ua kom tiav

Palladium chloride heptahydrate 24g / L

Sodium hypophosphite monohydrate 24g / L

Sodium citrate 5g / L

Lactic acid (catalytic txhawb) 27g / L

Ntxiv dej rau 1L

Cov txheej txheem txheej txheem: pH tus nqi 7-8, kub 80-85 degree, sijhawm 3-5 feeb.

Tsis tas li ntawd, cov cuab yeej ceramic yog chemically plated nrog npib tsib xee tom qab ua ntej kev kho mob saum toj no, uas tuaj yeem tau txais cov txheej txheem npib tsib xee thiab ruaj khov nrog cov substrate.

Bright npib tsib xee plating ntawm ceramics

Nickel sulfate heptahydrate 3 00.00g/L

Sodium chloride 15 00g/L

Boric acid 35 00g/L

Sodium sulfate decahydrate 70 00g/L

Saccharin 0.80g/L

1,4-Butynediol 2.00g/L

Sodium dodecyl sulfate 0.08g/L

Ntxiv dej rau 1.00L

Cov txheej txheem txheej txheem: pH 5.5, kub 40 degree, lub sij hawm 60 feeb, tam sim no ceev 2-4A/dm2, anode npib tsib xee daim ntawv dov rau hauv ib tug cylindrical zoo.

Passivation daws

Chromic anhydride 90g / L

Concentrated sulfuric acid 16 mL / L

Sodium chloride 4g / L

Cov txheej txheem txheej txheem: Lub sij hawm 0.5min, kub ntawm chav tsev kub.

Tom qab npib tsib xee plating, cov plooj (porcelain) yog rinsed nrog dej huv rau 1-2 feeb, thiab tom qab ntawd passivated nyob rau hauv ib tug passivation tov kom tau ib tug kaj, tiaj tus, muaj zog adhesion, thiab hnav-resistant nyiaj dawb txheej.

Formula l Silver Slurry rau Sintering thiab Infiltration Treatment ua ntej Ceramic Plating

20 feem ntawm nyiaj oxide

1 feem ntawm txhuas borate

8 feem ntawm rosin turpentine tov

Ua ntej ci cov khoom siv nyiaj coated ntawm 80-100 degree rau 10-15 feeb. Lub hom phiaj yog kom evaporate rosin thiab turpentine ua ntej, kom tsis txhob tsim cov scaly nyiaj txheej ntawm qhov kub thiab txias. Tom qab ua ntej kom qhuav, hloov cov khoom mus rau hauv lub qhov cub, maj mam nce qhov kub thiab txias rau 200 degree, thiab ua kom sov rau 10-15 feeb. Cov cua kub yuav tsum tsis txhob ceev heev. Tom qab li ntawm 1 teev, nce qhov kub thiab txias rau 500-650 degree thiab ua kom sov rau 25-30 feeb. Yog tias qhov kub thiab txias qis dhau lawm, cov txheej nyiaj yuav tsis khi ruaj khov, thiab yog tias qhov kub thiab txias siab dhau lawm, nws yuav ua rau muaj kev puas tsuaj rau lub substrate. Tom qab ua tiav ntawm sintering thiab infiltration, txias cov khoom rau 50 degree nyob rau hauv lub qhov cub, thiab ces muab nws tawm thiab txias rau chav tsev kub.

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