Dab tsi ntawm kev ua haujlwm tsis zoo tuaj yeem tshwm sim los ntawm ntau cov carbonate hauv cov tshuaj cyanide plating ntawm hluav taws xob cua sov raj

Dab tsi ntawm kev ua haujlwm tsis zoo tuaj yeem tshwm sim los ntawm ntau cov carbonate hauv cov tshuaj cyanide plating ntawm hluav taws xob cua sov raj

Teb: Cyanide plating tov nrog ntau cov carbonate tuaj yeem ua rau cov teeb meem hauv qab no:

(1) Cov nyhuv anodic polarization nce. (2) Lub cathode efficiency txo. (3) Cov conductivity ntawm cov tshuaj txo qis. (4) Txo gloss ntau yam. (5) Cov txheej yog yooj yim rau kev nkag mus. (6) Cov txheej yog yooj yim spongy (tshwj xeeb tshaj yog nyob rau hauv kub los yog nyiaj plating daws). (7) Lub viscosity ntawm cov tshuaj nce, ua rau kom poob ntau ntxiv.

51. Dab tsi yog qhov cuam tshuam ntawm impurities hauv ci sulfate tooj liab plating tov rau qhov zoo ntawm txheej?

Teb: Nyob rau hauv ci sulfate tooj liab plating tov, lub zog ntawm cov hlau impurities tsawg dua li ntawm lwm cov kev daws teeb meem electroplating. Ntau cov hlau ions maj mam sib sau ua ke hauv cov tshuaj plating vim yog kev qhia sab nraud lossis corrosion ntawm lub hauv paus hlau (xws li hlau, npib tsib xee, zinc). Vim qhov zoo electrode muaj peev xwm ntawm tooj liab, lawv lub xub ntiag nyob rau hauv cov kev daws teeb meem acidic tsis txaus los tsim co deposition tej yam kev mob, yog li qhov cuam tshuam tsis tseem ceeb. Txawm li cas los xij, lub xub ntiag ntawm hlau thiab npib tsib xee tuaj yeem txo cov conductivity ntawm cov tshuaj thiab ua rau cov txheej txheej ntxhib ntawm cov concentrations siab. Lub peev xwm ntawm arsenic thiab antimony zoo ib yam li tooj liab, thiab lawv tuaj yeem tso nrog tooj liab, ua rau txheej txheej ntxhib thiab nkig. Cov hmoov txhuas tuaj yeem ua rau hauv kev daws teeb meem thiab tsis tshua muaj txiaj ntsig. Qee cov organic impurities feem ntau ua rau embrittlement ntawm txheej.

52. Vim li cas thiaj li tuaj yeem ua kom zoo dua qhov kev tshem tawm impurity thaum siv cov electrolysis tsawg tam sim no kom tshem tawm cov kab hlau los ntawm cov tshuaj nickel?

Teb: Thaum siv electrolysis tshem tawm impurities los ntawm npib tsib xee plating tov, nplawm tuaj yeem muab ntau lub sijhawm rau impurities tuaj rau hauv kev sib cuag nrog cathode, yog li txhim kho kev ua haujlwm ntawm impurity tshem tawm.

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