Txij li lub sijhawm puag thaum ub, ntau cov hniav nyiaj hniav kub yog nyob rau hauv kev thov zoo tsis tsuas yog ntawm cov poj niam, tab sis kuj rau cov txiv neej Cov khoom kub yeej ib txwm muaj thiab nyob hauv thawj qhov chaw. Coob tus neeg xav txog yuav ua li cas gild lawv nyiam cov nyiaj lossis tooj liab nplhaib, vim tias nws zoo li muaj kev ua dhau los. Tab sis qhov no tsis yog txhua qhov teeb meem.
Peb npaj cov kev daws teeb meem ntawm peb tus kheej
Txhawm rau gild ib qho khoom, koj xav tau ib qho kev daws teeb meem, lossis theej, yaj lub kub. Txhawm rau kom tau nws, koj yuav tsum yaj cov kub hauv lub npe hu ua aqua regia - kev sib xyaw ntawm hydrochloric thiab nitric acids. Nws yog ib qho tsim nyog yuav tsum coj lawv hauv qhov ntsuas ntawm 3: 1. Tom qab kub tau yaj, nws yog qhov tsim nyog los yaj cov kua. Qhov no yuav tsum tau ua tib zoo, vim tias koj tuaj yeem txais hlawv rau koj txhais tes, ntsej muag lossis mob khaub thuas. Qhov seem yog chlorine kub. Nws yuav tsum tau yaj nrog kev daws ntawm poov tshuaj cyanide, thiab tom qab ntawd tov nrog elutriated chalk. Lub tom kawg yog qhov xav tau ntau heev kom tau txais qhov kev txiav tawm ntawm cov khoom ua kua. Kev txhuam ib qho txhuam, koj yuav tsum tau npog cov khoom uas koj xav kom zoo nrog cov gruel uas tau tshwm sim, thiab tom qab ib ntus nws yuav tsum tau ntxuav thiab txhuam.
Txhawm rau gild steel thiab hlau, ib qho kev daws ntawm kub chloride feem ntau siv, uas yog sib xyaw nrog ether. Nws tau nqus dej, thiab gilded nto yuav tsum tau txhuam nrog daim ntaub. Koj tuaj yeem ua qauv kub. Txhawm rau ua qhov no, coj tus cwj mem quill, moisten nws hauv gilding thiab kos cov qauv xav tau lossis kab.
Nyiaj kub thiab ntau dua
Zinc thiab nyiaj khoom kuj tseem tuaj yeem ua gilded. Rau cov zinc, ib qho tshuaj txhuam yog siv, uas tau npaj los ntawm 20 g ntawm chlorine kub nrog ntxiv ntawm 60 g ntawm poov tshuaj cyanide thiab 100 g ntawm dej ntshiab. Qhov sib xyaw no yuav tsum tau shaken thiab lim. Ntxiv qhov sib xyaw ntawm tartar thiab chalk rau qhov kev lim tshuaj. Noj 5 g thiab 100 g, feem. Qhov sib xyaw no yuav tsum tau ntxiv kom txog thaum koj tau txais lub gruel tsis tuab heev. Koj yuav tsum tau thov txhuam nrog txhuam.
Txog gilding cov nyiaj, koj yuav tsum siv cov tshuaj tshwj xeeb. Muaj 2 txoj kev xaiv rau nws npaj, tab sis nrov tshaj plaws yog ib qho. Txhawm rau npaj nws, koj xav tau chlorine kub, potassium cyanide, rooj ntsev, zam thiab dej (10 g, 30 g, 20 g, 20 g thiab 1.5 litres, ntsig txog). Cov khoom yuav gilded yog thawj calcined thiab ces etched nyob rau hauv kev daws ntawm sulfuric acid, tom qab ntawd lawv yog ib pliag dipped hauv nitric acid. Tom ntej no, koj yuav tsum ua cov hauv qab no - koj yuav tsum khi cov khoom nrog tooj dag hlau thiab luv luv rau lawv rau hauv cov sib tov, uas tau npaj los ntawm sulfuric, nitric thiab hydrochloric acid. Tom qab ntawd, peb yaug lawv nrog dej, dawm lawv hauv mercury, thiab tom qab ntawd muab dej rau hauv. Tom qab 30 vib nas this, muab tso rau hauv cov kua gilding. Kub sawdust yog siv rau ziab.
