Bronze candlesticks thiab daim duab muab rau sab hauv ib qho kev tsis sib xws thiab muaj xim tshwj xeeb ntawm kev qub txeeg qub teg. Lawv tuaj yeem ua tau zoo nkauj heev, tab sis lawv muaj ib qho tsis zoo. Bronze khoom nyob rau hauv tus ntawm noo noo thiab huab cua, thiab lwm yam tsis zoo ua rau dhau los, dhau los ua nrog xiav-ntsuab txheej ntawm oxides. Qhov no muaj tseeb tshwj xeeb rau cov khoom uas tau khaws cia rau hauv qab daus lossis nthab. Cov khoom siv tooj daj tuaj yeem txhuam tau muab lawv cov duab zoo li qub.
Nws yog qhov tsim nyog
- -sulfuric acid;
- -paj thaj bichromate;
- -muasmonia;
- -acetic kua qaub;
- -dej hiav txwv;
- -suab sawdust;
- - dej qab zib tshauv;
- -txim tsom iav;
- -glassware;
- -latex hnab looj tes;
- - woolen khaub hlab;
- - siv quav ciab lossis paraffin.
Cov Lus Qhia
Kauj ruam 1
Yog tias cov tooj dag tsis tau oxidized ntau dhau thiab tsuas yog ib leeg tus kheej rau ntawm qhov chaw yuav tsum tau ntxuav, siv txoj kev hauv qab no. Degrease qhov khoom los ntawm muab yaug nws hauv dej qab zib kom sov cov hmoov tshauv. Yaug nrog dej.
Kauj ruam 2
Ua ib qho porridge nrog acetic acid thiab sawdust. Thaum lub sawdust tau o, so lub npuag tooj liab nrog daim ntaub woolen nrog qhov loj. Nyob rau tib lub sijhawm, acetic acid corrodes oxides, thiab sawdust polishes cov khoom. Thaum ua tiav, yaug cov khoom nrog dej txias thiab qhuav kom huv.
Kauj ruam 3
Yog tias saum npoo ntawm cov khoom yog qias neeg ntau nrog oxides, npaj cov qauv hauv qab no. Rau 1 liter dej, noj 10 g ntawm poov tshuaj dichromate thiab 20 ml ntawm concentrated sulfuric acid. Ncuav txoj kev daws rau hauv lub khob iav tsis mus rau sab saum toj (coj mus rau hauv tus account qhov ntim ntawm qhov khoom). Dhuav cov khoom rau hauv kev daws thiab saib xyuas cov txheej txheem ntawm kev tshem tawm ntawm oxides.
Kauj ruam 4
Sai li thaj chaw ntawm cov hlau huv si tshwm sim, tam sim ntawd tshem tawm cov khoom thiab muab tso rau hauv kev daws teeb meem ntawm ammonia rau neutralize acid. Tom qab ntawd yaug cov khoom nrog dej thiab qhuav kom huv. Cov txheej txheem nrog sulfuric acid thiab potassium dichromate xav tau qee qhov kev saib xyuas thiab kev txawj kom tsis txhob ua rau cov hlau.
Kauj ruam 5
Tom qab ntxuav lub tooj liab, nws raug nquahu los ua nws cov nplaim taws. Qhov no tuaj yeem ua tiav nrog siv quav ciab thiab khaub hlab lossis dej cawv tov ntawm cov quav ciab lossis tshuaj pleev. Qhov kev kho no yuav tiv thaiv saum npoo ntawm qhov khoom los ntawm oxidation.
