Dab tsi yog qhov tam sim no siv ntawm hluav taws xob cua sov raj electroplating?

Dab tsi yog qhov tam sim no siv ntawm hluav taws xob cua sov raj electroplating?

22. electroplating yog dab tsi?

Teb: Cov txheej txheem ntawm kev tso ib txheej nyias ntawm lwm cov hlau rau saum npoo ntawm cov hlau los ntawm electrolysis yog hu ua electroplating. Electroplating suav nrog cov txheej txheem xws li kev kho ua ntej plating (kev tshem tawm roj, tshem tawm xeb), hlau txheej, thiab kev kho tom qab plating (passivation, tshem tawm hydrogen). Siv los tiv thaiv corrosion ntawm cov khoom hlau, kho cov khoom hnav, ua kom durability, reflectivity, conductivity, thiab zoo nkauj. Thaum electroplating, hlau qhov chaw yog siv los ua cathode, thiab cov plated hlau phaj lossis pas nrig yog siv los ua cov anode. Lawv raug dai rau ntawm tus pas nrig electrode thiab muab tso rau hauv ib qho electrolyte uas muaj cov txheej txheem, thiab tom qab ntawd raug rau tam sim no. Qee zaum, insoluble anodes kuj tseem muaj txiaj ntsig, xws li siv cov hmoov txhuas lossis cov hlau lead antimony alloy anodes rau chromium plating.

23. Qhov kev siv tam sim no yog dab tsi?

Teb: Tam sim no siv, luv luv li tam sim no, hais txog tus nqi hluav taws xob dhau los ntawm ntu ntu ntawm tus neeg xyuas pib hauv ib lub sijhawm. Chav tsev yog ampere, abbreviated li ampere (A).

24. Dab tsi yog qhov ceev tam sim no? Yuav xam li cas?

Teb: Qhov ceev tam sim no yog hais txog qhov siv tam sim no rau ib cheeb tsam ntawm cov electrode. Electroplating yog nyob ntawm ib square decimeter, yog li qhov kev siv tam sim no dhau los ntawm ib square decimeter ntawm thaj chaw electrode hu ua qhov ceev tam sim no ntawm electrode. Lub cathode tam sim no ceev yog sawv cev los ntawm DK, thiab cov anode tam sim no ceev yog sawv cev los ntawm DA, nyob rau hauv amperes ib square decimeter, piv txwv li A / d ㎡. (Nws kuj tau hais tawm hauv amperes ib square inch hauv txawv teb chaws).

Piv txwv li, yog tias tag nrho cheeb tsam ntawm daim plated yog 50 square decimeters thiab tam sim no siv yog 100 amperes, qhov ceev tam sim no yog 100 amperes ÷ 50 square decimeters =2 amperes/square decimeters. Lub cathode tam sim no ntom ntom muaj qhov cuam tshuam loj rau qhov zoo ntawm cov txheej, thiab siab lossis qis tam sim no tuaj yeem ua rau cov txheej txheem tsis zoo. Qhov ceev tam sim no kuj ncaj qha txiav txim siab tus nqi ntawm cov txheej txheej thiab cuam tshuam rau kev tsim khoom.

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