Muaj ntau lub sijhawm hauv lub neej thaum koj xav tau nrawm nrawm saib koj puas muaj cov hlau txig nyob ntawm koj hauv ntej lossis tsis muaj? Yog lawm, nws zoo dua rau tig mus rau cov kws tshaj lij. Tab sis yog tias qhov no ua tsis tau, muaj ob peb txoj hauv kev.
Tsim nyog
- - muaj zog hlau nplaum,
- - ib daim xim av dawb,
- - Cov tshuaj pleev sulfuric,
- - tej hub nplais,
- - Iodine tov,
- - ib qho mov ci dawb,
- - ntaub ntawv.
Cov Lus Qhia
Kauj ruam 1
Nqa cov hlau nplaum khov nrog koj yog tias koj mus rau qaib ntxhw, Suav lossis Khab Indian rau cov khoom pheej yig. Txhawm rau kom tsis txhob raug tawm ntawm lub ntsej muag cuav, xyuas cov khoom nrog cov hlau nplaum. Tsis kub los yog nyiaj yuav tsis xav li cas. Tab sis cov hlau-based Belgian alloy yog qhov yuav tsum tau ua.
Cov kub alloys feem ntau yog ua raws li tooj liab, uas oxidizes tau yooj yim. Yog li ntawd, tshiav qhov kev ua kom zoo nkauj nrog daim ntaub da dej hauv vinegar. Yog tias cov khoom lag luam tsaus ntuj, ces nws yog qhov cuav. Yog tias nws tsis hloov xim, nws yog feem ntau yuav kub. Qhov zoo sib xws tuaj yeem muab tau nrog iodine. Los ntawm txoj kev, iodine yog qhov taw qhia zoo rau nyiaj dawb thiab. Ntawm qhov tsis sib xws, ntau nws nyob hauv cov khoom, qhov nrawm dua cov nyiaj tiag yuav dub. Ua tib zoo saib - txoj kev no nyuaj rau ntxuav!
Tshiav cov hniav nyiaj hniav kub maj mam muab nrog chalk. Chalk yuav tsum tig dub rau ntawm kev sib cuag nrog nyiaj. Qhov no tshwm sim sai heev, yog li cov txheej txheem tuaj yeem siv tau rau txhua qhov chaw. Lwm txoj kev nrawm rau pom kub tiag tiag. Tshiav cov khoom ntawm koj txhais tes ib pliag. Ob txhais tes thiab hlau yuav tsum sov. Yog tias koj muaj lub cim xiav tsaus rau ntawm koj cov tawv nqaij, qhov no yog qhov cuav.
Kauj ruam 2
Yog tias koj tabtom tshawb xyuas cov khoom hlau uas muaj nqi hauv tsev, tom qab ntawd koj muaj ob peb yam kev xaiv ntxiv. Muab cov kub tso rau ntawm ib daim khob cij dawb. Kub yuav nyob hauv nws daim tseem, thiab ib qho alloy yuav tsuas nyob hauv plaub teev. Siv tshuaj pleev me ntsis ntawm cov tshuaj pleev rau lub ntsej muag ntawm cov khw muag tshuaj mus rau qhov nyiaj daim ntawv thiab tos ob peb teev. Nyiaj yuav blacken, alloys yuav tig los liab lossis tsis zoo li.
Nws feem ntau tshwm sim uas txheej txheej ntawm gilding lossis silver yog thov rau qhov pheej yig txhuas. Yuav kom daws tau qhov teeb meem no, kos koj cov khoom nrog ib qho ntawv. Ib qho khawb ntawm tib xim yuav nyob twj ywm rau ntawm yam khoom zoo. Thiab ntawm tus fake, lwm tus hlau yuav pom.
Lwm qhov kev siv tshuab rau kev sim kub yog siv cov pob zeb tsis muaj xim. Khiav qhov nyiaj kub ua dhau qhov unglazed rov qab. Yog ib qhov tseem ceeb ntawm cov kub tseem nyob, kub yog qhov tseeb. Yog tias qhov xim dub lossis txho cim tseem nyob, ces koj muaj qhov cuav ntawm koj txhais tes.
Kauj ruam 3
Lwm pab pawg ntawm txoj kev siv koj tsis nkag siab. Siv lub siab xav: ib daim zoo yuav tsum yog kom zoo nkauj kiag li. Ntxiv rau, kub yog qhov hnyav hlau thiab koj tuaj yeem hnov nws ntawm koj txhais tes. Tso lub nplhaib kub ntug-rau-ntug mus rau ib qho nyuaj txheej txheem. Koj yuav tsum hnov qhov tshwj xeeb hais tias zoo nkauj.
Tsis txhob tsis saib xyuas ntawm qhov kuaj xyuas ntawm cov qauv. Nws yog pom meej meej rau cov khoom lag luam zoo, nws yooj yim los ua tus tsim cov lej thiab hom. Tus qauv yuav tsum sawv ntau tusyees, mus tib seem rau ntawm cov npoo ntawm cov khoom. Yog tias koj pom qhov muag plooj thiab tsis tuaj yeem ua cov kab ntawv sau, feem ntau koj yuav muaj tus cuav hauv koj txhais tes.
Kev ntsuas zaum kawg yog nrhiav cov lus qhia los ntawm tus kws tshaj lij lossis kev tshawb xyuas tshuaj lom.
