Qhov sib txawv tseem ceeb ntawm tooj liab thiab tooj dag yog tooj liab yog lub hauv paus hlau uas yog ib qho zoo heev conductor ntawm tshav kub thiab hluav taws xob thaum tooj dag yog ib qho alloy ntawm tooj liab ua los ntawm kev ntxiv zinc rau tooj.
tooj liab thiab tooj dag sib txawv hauv qhov kev txiav txim siab ib qho yog hlau thiab lwm qhov yog hlau. Yuav kom paub qhov txawv ntawm tooj liab thiab tooj dag, peb yuav tsum xub paub me ntsis txog cov hlau vim tooj liab yog hlau. Tag nrho cov ntsiab lus pom nyob rau hauv xwm categorized ua peb pawg li hlau, metalloids thiab nonmetals. Cov hlau yog cov khoom siv hluav taws xob zoo heev ntawm cov cua sov thiab hluav taws xob thiab muaj qhov tseem ceeb rau peb vim lawv muaj ntau yam siv hauv cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob. Lawv kuj tseem ceeb heev rau lub tsev thiab cov ntaub ntawv tsim kho thiab siv dav hauv tsheb, dav hlau, rooj tog zaum thiab ntau yam khoom siv hauv tsev.
Copper yog dab tsi?
tooj liab yog lub hauv paus hlau, thiab peb tuaj yeem pom nws ib txwm nyob hauv qab lub ntiaj teb pob zeb hauv daim ntawv ntawm nws cov oxides. Thaum nws nyob rau hauv nws daim ntawv purest, nws yog ib tug mos mos thiab malleable hlau. Tsis tas li ntawd, nws yog xim liab-txiv kab ntxwv, tab sis, thaum oxidized, nws yuav ntsuab. Ntxiv mus, nws yog ib tug hlau uas muaj thermal thiab hluav taws xob conductivity. Thiab, nws yog malleable thiab ductile. Tsis tas li ntawd, tib neeg, nroj tsuag, thiab tsiaj txhu muaj tooj liab me me hauv lawv lub cev.
Daim duab 01: Nyiaj npib tooj
Tib neeg tau paub cov hlau no ntau txhiab xyoo, thiab nws tseem siv tau. Niaj hnub no, tooj liab tau siv dav hauv kev lag luam hluav taws xob vim nws lub cev zoo heev ntawm thermal thiab hluav taws xob conductivity. Tsis tas li ntawd, raws li nws yog malleable thiab ductile, nws yog zoo meej rau kev ua nyob ntawm tej.
Brass yog dab tsi?
tooj dag yog tooj liab. Ib qho alloy yog sib xyaw ntawm ob lossis ntau dua hlau thiab lwm yam sib xyaw. Peb tsim cov alloys kom tau txais txiaj ntsig thiab txhim kho cov khoom zoo dua li cov hlau ntshiab. Txij li thaum ancient sij hawm, tooj liab yog siv los ua ntau hom alloys los ntawm kev sib xyaw lwm yam khoom nrog nws. Brass yog ib qho piv txwv classic ntawm ib qho alloy ntawm tooj liab thiab zinc. Txij li nws yog kev sib xyaw ntawm zinc thiab tooj liab, tooj dag muaj kub zoo li xim thiab zoo li muaj nuj nqis. Nws yog vim li cas cov hlau no muaj txiaj ntsig zoo hauv kev ua cov khoom zoo nkauj thiab cov tes thiab cov pob qhov rooj.
Daim duab 2: Brass for Decorative Purposes
Zips uas peb siv hauv cov ris tsho thiab cov ris tsho kuj yog ua los ntawm tooj dag. Nws kuj tseem muaj ntau yam siv los ua cov khoom siv suab paj nruag thiab tseem siv tau los ua cov xauv, li qub, thiab mos txwv thiab cov khoom siv kav dej. Thaum ub, tooj dag tau siv los ua cov iav loj loj thiab cov duab thav duab.
Tsis tas li ntawd, cov tooj liab thiab zinc hauv tooj dag tuaj yeem sib txawv raws li hom tooj dag. Thaum muaj cov ntsiab lus siab ntawm tooj liab, xim ntawm tooj dag mus ntawm daj mus rau txiv kab ntxwv. Ntxiv mus, qhov no alloy yog kim tshaj tooj liab thiab peb tuaj yeem siv nws rau cov khoom siv hauv tsev zoo nkauj thaum tooj liab muaj kev siv hnyav hauv kev lag luam hluav taws xob. Txawm hais tias nws yog ib qho alloy ntawm tooj liab, tooj dag muaj tag nrho cov khoom sib txawv ntawm lub cev thiab tshuaj lom neeg. Nws yog vim qhov sib ntxiv ntawm zinc rau nws.
Qhov txawv ntawm tooj liab thiab tooj dag yog dab tsi?
tooj liab yog lub hauv paus hlau uas peb tuaj yeem pom nyob rau hauv lub ntiaj teb lub pob zeb hauv daim ntawv ntawm nws cov oxides. Brass yog ib qho alloy ntawm tooj liab. Yog li ntawd, qhov sib txawv tseem ceeb ntawm tooj liab thiab tooj dag yog tooj liab yog lub hauv paus hlau thiab yog ib qho zoo heev conductor ntawm tshav kub thiab hluav taws xob thaum tooj dag yog ib qho alloy ntawm tooj liab ua los ntawm kev ntxiv zinc rau tooj liab.
Tsis tas li ntawd, tooj liab muaj qhov ua tiav rustic thaum tooj dag muaj qhov sib dua. Tsis tas li ntawd, raws li qhov sib txawv tseem ceeb ntawm tooj liab thiab tooj dag, peb tuaj yeem hais tias tooj liab muaj kev tiv thaiv zoo rau corrosion whereas tooj dag kuj muaj kev tiv thaiv corrosion zoo tab sis tsis yog dej qab ntsev.
Cov lus hauv qab no saib qhov txawv ntawm tooj liab thiab tooj dag kom ntxaws ntxiv.
Summary – Copper vs Brass
tooj liab yog hlau thiab tooj dag yog hlau; Yog li peb tuaj yeem hais tias qhov sib txawv tseem ceeb ntawm tooj liab thiab tooj dag yog tooj liab yog lub hauv paus hlau uas yog ib qho zoo heev conductor ntawm tshav kub thiab hluav taws xob thaum tooj dag yog ib qho alloy ntawm tooj liab ua los ntawm kev ntxiv zinc rau tooj.
