Raws li cov khoom siv hlau, tooj liab yog dav siv hauv kev tsim kho, hluav taws xob, kho kom zoo nkauj, thiab lwm yam. Txawm li cas los xij, ntau tus neeg yuav muaj kev nkag siab tsis zoo txog seb tooj liab yuav xeb. Nyob rau hauv tsab xov xwm no, peb yuav ua tib zoo saib cov yam ntxwv ntawm tooj liab, oxidation txheej txheem ntawm tooj liab, thiab yuav ua li cas tiv thaiv tooj liab corrosion los pab koj kom nkag siab zoo txog qhov kav ntev ntawm tooj liab.
Tau txais cov ntaub ntawv qhia ntxaws ntxaws
Copper yog dab tsi? Puas yog Copper Rust?
Tooj liab yog hlau nrog zoo hluav taws xob thiab thermal conductivity thiab zoo heev corrosion kuj. Vim cov khoom no, tooj liab yog dav siv nyob rau hauv ntau lub teb xws li cables, kav, sculptures, thiab lwm yam. Tsis zoo li lwm yam hlau xws li hlau, tooj liab tsis tsim xeb zoo li hlau thaum oxidation.
Basic Properties ntawm tooj liab
Zoo heev hluav taws xob thiab thermal conductivity
Tooj yog ib qho zoo heev conductor ntawm hluav taws xob, thib ob tsuas yog nyiaj. Qhov no ua rau cov khoom siv tooj liab xaiv rau cov xov hlau, cables, thiab cov khoom siv hluav taws xob. Tsis tas li ntawd, tooj liab kuj muaj thermal conductivity siab heev, yog li nws yog dav siv nyob rau hauv tshav kub exchangers thiab radiators.
Corrosion Resistance
Copper's corrosion kuj los ntawm kev tiv thaiv oxide txheej tsim thaum lub sij hawm oxidation txheej txheem. Thaum tooj liab los rau hauv kev sib cuag nrog oxygen nyob rau hauv cov huab cua, ib txheej nyias ntawm tooj liab oxide ntaub ntawv nyob rau saum npoo, uas zoo tiv thaiv corrosion ntxiv.
Kev ua tau zoo
Copper's ductility thiab forgeability ua kom yooj yim rau cov txheej txheem thiab tuaj yeem ua rau hauv cov khoom ntawm ntau yam duab thiab ntau thiab tsawg. Qhov no ua rau tooj liab dav siv nyob rau hauv handicrafts thiab architectural kho kom zoo nkauj.
Copper Oxidation txheej txheem
Txawm hais tias tooj liab tsis xeb, nws ua oxidize thaum raug huab cua thiab av noo. Copper reacts nrog oxygen nyob rau hauv cov huab cua los tsim tooj liab oxide, uas feem ntau tshwm raws li ib tug ntsuab patina (pab tooj liab carbonate). Cov txheej oxide no tuaj yeem muab qee qhov kev tiv thaiv rau tooj liab thiab tiv thaiv kev xeb ntxiv. Yog li ntawd, tooj liab oxidation tsis txhais hais tias tooj liab yuav xeb.
Tooj liab Oxidation
Thaum tooj liab raug rau huab cua thiab av noo, nws dhau los ua cov tshuaj tiv thaiv oxidation, tsim tooj liab oxide. Cov txheej txheem no ua rau cov tooj liab hloov xim, feem ntau mus rau ntsuab patina (pab tooj liab carbonate). Tsis yog ua phem rau cov qauv tooj liab, txheej oxide no tiv thaiv nws.
Patina Tsim
Kev tsim ntawm patina yog cov txheej txheem ntuj tsim uas feem ntau pom pom hauv qhov chaw ntub dej. Thaum patina tuaj yeem cuam tshuam rau tooj liab qhov tsos, nws pab tiv thaiv corrosion ntxiv. Yog li ntawd, es tsis txhob xeb, tooj liab tuaj yeem ua kom nws ruaj khov thaum lub sijhawm oxidation.
Nkag siab txog tooj liab Corrosion
Tooj liab muaj qhov zoo corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv qhuav ib puag ncig. Nws tuaj yeem tiv thaiv kev tawm tsam ntawm ntau cov kua qaub thiab cov hauv paus, uas ua rau tooj liab ua tau zoo hauv ntau qhov chaw tshuaj lom neeg. Txawm li cas los xij, tooj liab tseem tuaj yeem corrode nyob rau hauv qee yam kev mob tshwj xeeb, xws li cov av noo siab thiab ib puag ncig uas muaj chloride ions.
Tooj liab tsis xeb zoo li hlau. Kev xeb yog qhov tshwm sim ntawm hlau oxidation, tsim flaky liab hlau oxide uas ua rau cov hlau tsis muaj zog. Copper, ntawm qhov tod tes, dhau oxidation, tsim ib txheej tiv thaiv ntsuab hu ua patina. Cov txheej no tiv thaiv corrosion ntxiv thiab ua kom lub neej ntev ntawm cov khoom siv tooj liab.
Yog vim li cas tooj liab Rusts los yog Tarnishes
Tooj liab muaj qhov zoo corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv qhuav ib puag ncig. Nws tuaj yeem tiv thaiv kev tawm tsam ntawm ntau cov kua qaub thiab cov hauv paus, uas ua rau tooj liab ua tau zoo hauv ntau qhov chaw tshuaj lom neeg. Txawm li cas los xij, tooj liab tseem tuaj yeem corrode nyob rau hauv qee yam kev mob tshwj xeeb, xws li cov av noo siab thiab ib puag ncig uas muaj chloride ions.
Tooj liab tsis xeb zoo li hlau. Kev xeb yog qhov tshwm sim ntawm hlau oxidation, tsim flaky liab hlau oxide uas ua rau cov hlau tsis muaj zog. Copper, ntawm qhov tod tes, dhau oxidation, tsim ib txheej tiv thaiv ntsuab hu ua patina. Cov txheej no tiv thaiv corrosion ntxiv thiab ua kom lub neej ntev ntawm cov khoom siv tooj liab.
Yuav Tiv Thaiv Copper Corrosion li cas?
Txhawm rau tswj cov tsos thiab kev ua haujlwm ntawm tooj liab, koj tuaj yeem siv cov kev ntsuas hauv qab no los tiv thaiv tooj liab corrosion:
Kev tu tsis tu ncua: Siv cov tshuaj ntxuav me me los ntxuav cov khoom tooj liab tsis tu ncua kom tshem tawm cov av thiab oxides.
Kev tiv thaiv txheej: Siv cov txheej txheej ntshiab lossis los tiv thaiv- tus neeg saib xyuas corrosion tuaj yeem tiv thaiv tooj liab los ntawm ib puag ncig sab nraud.
Tsis txhob muaj qhov chaw ntub dej: Sim tso cov khoom tooj liab rau hauv qhov chaw qhuav, qhov cua kom txo tau qhov kev pheej hmoo ntawm oxidation thiab corrosion.
Xaiv cov hlau zoo: Hauv cov ntawv thov tshwj xeeb, xaiv cov tooj liab tooj liab yuav ua rau corrosion ntau dua -resistant.
FAQ - tooj liab xeb & Oxidation
Puas yog tooj liab xeb hauv dej?
Tooj liab tsis xeb hauv dej zoo li hlau, tab sis ntev ntev yuav ua rau ntsuab patina tsim vim oxidation.
Ntev npaum li cas tooj liab nyob sab nraum zoov?
Copper yog qhov ruaj khov heev. Kev tiv thaiv patina ncua nws txoj sia mus rau ntau xyoo, txawm tias nyob rau sab nraum zoov.
Cov tooj liab puas tuaj yeem siv tau?
Yog lawm, tooj liab tuaj yeem rov ua dua tshiab yam tsis poob qhov zoo, ua rau nws muaj kev xaiv zoo rau kev lag luam thiab kev lag luam.
Yuav ua li cas paub qhov txawv tooj liab los ntawm tarnish?
Copper tarnish feem ntau yog ntsuab lossis xim av tsaus thiab tiv thaiv, qhov xeb ntawm hlau yog xim liab thiab puas.
Peb cov khoom lag luam
| Yam khoom | Ntsiab Qib / Alloys | Common ASTM Standards (Piv txwv) | |
|---|---|---|---|
| Copper Tubes / Cov kav dej | C10100 (OFE), C10200 (OF), C11000 (ETP), C12000 (DLP), C12200 (DHP), C19200, C23000 (Red Brass) | ASTM B68 (Seamless Copper Tube), ASTM B75 (Seamless Copper Tube), ASTM B88 (Dej Tube), ASTM B280 (ACR / Tube Tube) |
|
| Copper Sheets / Phaj | C10100, C10200, C11000, C12200, C26000 (Cartridge tooj dag), C26800, C70600 (90-10 CuNi), C71500 (70-30 CuNi) |
ASTM B152 (Copper Sheet / Sawb), ASTM B248 tooj liab phaj |
|
| Copper Qws / Bars | C10100, C11000, C14500 (Tellurium tooj liab), C14700 (Sulphur tooj liab), C36000 (Free-Txiav tooj dag), C46400 (Naval Brass) |
ASTM B133 (Copper Qws / Bar), ASTM B16 (dawb-Txiav tooj dag qws) |
|
| Tooj Hlau | C10100, C10200, C11000 | ASTM B1 (Hard-Drawn Copper Wire), ASTM B2 (nruab nrab-Hard Copper Hlau), ASTM B3 (Mos / Annealed tooj liab hlau) |
|
| Copper Foils | C10100, C10200, C11000 | ASTM B103 (Phosphor Bronze Sawb / Ntawv Nyiaj), * ASTM B152 (Copper Sawb / Ntawv Nyiaj), IPC-4562 (PCB Foil Standards) |
Peb lub Hoobkas
Peb yog cov chaw tsim khoom lag luam tshwj xeeb hauv ntau yam ntawm cov khoom siv tooj liab precision, nrog rau cov raj, nplooj ntawv, rods, xov hlau, thiab foils. Peb qhov chaw tsim khoom siab tshaj plaws ua haujlwm nrog cov khoom siv niaj hnub no tag nrho-los ntawm cov dov kub thiab cov tshuab extrusion presses mus rau precision drawing machine thiab automated finishing kab-ua kom nruj tswj txhua theem ntau lawm.
Kev cog lus rau kev ua tau zoo, peb ua raws li cov qauv thoob ntiaj teb loj xws li ASTM, EN, JIS, thiab GB, txhawb nqa los ntawm kev tswj xyuas zoo. Peb cov khoom ua haujlwm rau ntau hom kev lag luam, suav nrog HVAC&R, hluav taws xob thiab hluav taws xob, tsheb, kev tsim kho, thiab kev lag luam engineering. Nrog rau kev muaj zog hauv- kev txawj ntse hauv tsev, kev hloov pauv hloov tau yooj yim, thiab cov khoom lag luam txhim khu kev qha, peb xa cov khoom siab tshaj -kev ua tau zoo, tus nqi- cov kev daws teeb meem tooj liab zoo rau cov neeg koom tes thoob ntiaj teb.
tooj liab khoom ntim
Txhawm rau kom ntseeg tau tias txhua yam khoom siv tooj liab uas koj xaj tau txais kev tiv thaiv kev ruaj ntseg thoob plaws hauv kev thauj mus los thiab kev cia khoom, peb muab cov txheej txheem ntim kev daws teeb meem raws li cov khoom lag luam thiab kev xa khoom. Cov no suav nrog kev xa tawm -tus qauv ntoo crates, noo noo- cov ntaub ntawv pov thawj, steel- qauv pallet bundling, stretch zaj duab xis tiv thaiv, thiab tshwj xeeb kawg hau rau tubing. Txhua pawg ntawm cov khoom tau txais kev tu thiab tiv thaiv - xeb, ua raws li txheej txheej cais tawm siv cov ntaub ntawv xws li tshuaj tiv thaiv - ntawv xeb, polyethylene ua npuas ncauj, thiab npuas qhwv kom zoo tiv thaiv khawb thiab cuam tshuam. Peb kuj tseem muab cov nitrogen- puv hloov chaw ntim khoom raws li cov neeg siv khoom thov, qhov uas tsis muaj nitrogen yog txhaj rau hauv ib puag ncig kaw kom tsis txhob muaj oxidation thiab ya raws ya raws. Qhov no yog tshwj xeeb tshaj yog haum rau cov khoom siv tooj liab nrog cov kev xav tau zoo ntawm qhov chaw, ntev - lub sijhawm khaws cia, lossis kev thauj mus los tshwj xeeb ib puag ncig, ua kom cov khoom tswj hwm lawv lub Hoobkas- qib tiav thiab kev ua tau zoo thaum tuaj txog. Tag nrho cov ntim tau sau meej meej thiab nrog rau cov ntaub ntawv xa khoom kom tiav kom paub meej tag nrho cov kev taug qab thiab yooj yim ntawm kev tuav thoob plaws hauv cov txheej txheem logistics.
