Dab tsi yog cov hlau impurities hauv nickel plating daws rau hluav taws xob cua sov raj?

Dab tsi yog cov hlau impurities hauv nickel plating daws rau hluav taws xob cua sov raj?

91. Dab tsi yog lub ntsiab lus ntawm alloy txheej?

Teb: Lub ntsiab lus ntawm alloy txheej yog: txhua txheej uas muaj ob lossis ntau dua co deposited hlau, tsis hais lawv cov qauv, tsuav yog lawv cov nplej zoo thiab tsis tuaj yeem kuaj pom los ntawm peb lub qhov muag liab qab, thiab cov hlau tsis tshua muaj nyob hauv nws cov muaj pes tsawg leeg. tsis tsawg dua 1 feem pua, cov txheej no tuaj yeem hu ua alloy txheej. Hauv qee cov hlau electroplating, ib qho me me ntawm cov hlau brightener yog siv. Piv txwv li, nyob rau hauv cyanide tooj liab plating, ib tug me me ntawm cov hlau lead yog siv los ua ib tug luminescent tus neeg sawv cev, thiab txhuas yuav tso rau hauv lub cathode. Txawm li cas los xij, peb ib txwm tsis hu nws tias yog alloy vim nws cov ntsiab lus hauv txheej yog tsawg dua 1 feem pua.

92. Dab tsi yog cov hlau impurities hauv nickel plating daws?

Teb: Cov npib tsib xee plating electrolyte yog rhiab heev rau impurities, thiab muaj qee yam hlau impurities (nrog cov ntsiab lus tsawg heev) tuaj yeem ua rau qhov zoo ntawm cov nickel txheej rau deteriorate. tooj liab, hlau, zinc thiab lwm yam hlau ions yog cov feem ntau muaj teeb meem hlau impurities nyob rau hauv nickel plating da dej. Hlau yog qhov zoo dua tso rau ntawm cathode hauv electrolyte piv rau npib tsib xee, ua rau cov txheej nkig thiab ua rau tawg. Cov ntsiab lus siab tshaj plaws ntawm cov hlau hauv cov tshuaj nickel plating yuav tsum tsis pub tshaj {{0}}.1 grams ib liter. Lub peev xwm los nag lossis daus ntawm tooj liab yog tsawg, yog li nws nyiam precipitates ntawm cathode, uas ua rau cov xim av xim av lossis greyish dub npib tsib xee txheej. Cov ntsiab lus siab tshaj plaws ntawm tooj liab yog 0.02 grams ib liter. Cov ntsiab lus tso cai ntawm zinc hauv cov tshuaj nickel plating tsis ntau tshaj 0.01 grams ib liter. Thaum cov electrolyte muaj ib tug me me ntawm zinc, ib tug kaj txheej yog tsim nyob rau hauv cov npoo thiab ntse ces kaum ntawm lub plating daim. Thaum cov ntsiab lus siab dua me ntsis, nws ua rau cov kab txaij dub, me ntsis, thiab flake zoo li cov txheej txheej tshwm sim rau tag nrho saum npoo ntawm ib feem.

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