Hauv kev xa hluav taws xob, kev tswj hwm kev lag luam, thiab cov neeg siv khoom siv hluav taws xob, cov khoom siv hluav taws xob tooj liab tau siv dav hauv cov khoom tseem ceeb xws li cov keyboards, relays, thiab Circuit Court breakers vim lawv cov conductivity zoo heev (ntshiab tooj liab muaj qhov conductivity txog li 58 MS / m), zoo ductility, thiab tus nqi qis. Cov khoom siv tooj liab sib txuas lossis ib qho tooj liab sib tiv tauj rivets tsis tsuas yog xav tau cov khoom siv hluav taws xob zoo xwb tab sis kuj tseem muaj qee theem ntawm arc tsis kam thiab kev siv tshuab ua haujlwm ntev. Txawm li cas los xij, nrog kev hloov kho sai sai ntawm cov khoom lag luam, ntau cov tooj liab ntau - muaj cov khib nyiab- suav nrog cov khoom seem stamping, cov neeg raug pov tseg, tooj liab - plated terminals, thiab cov tooj liab hloov tsis tau kev sib cuag - nkag mus rau cov saw hlau rov ua dua. Yuav ua li cas kom tau txais txiaj ntsig zoo thiab ib puag ncig zoo siab -purity tooj liab los ntawm cov ntaub ntawv no tau dhau los ua qhov teeb meem tseem ceeb rau kev rov ua dua tshiab thiab kev tsim ntsuab.
Cov peev txheej thiab qhov nyuaj ntawm tooj liab-Plated khib nyiab
Hauv kev tsim cov txheej txheem ntawm rivet- hom khoom tooj liab tiv tauj, electroplating, electroless plating, los yog kub-dip plating feem ntau yog siv los ua ib txheej tooj liab ntawm hlau, hlau, los yog tooj dag substrate kom sib npaug conductivity thiab mechanical zog. Piv txwv li, hluav taws xob tooj liab rivets feem ntau yog steel-cov tub ntxhais tooj liab-plated cov qauv, kom ntseeg tau tias ob qho tib si riveting lub zog thiab muab cov hluav taws xob tiv tauj zoo. Txawm hais tias hom tooj liab no-plated pov tseg muaj ntau npaum li cas ntawm tooj liab (feem ntau 5%–30%), nws muaj pes tsawg leeg thiab nws cov ntaub ntawv muaj ntau haiv neeg. Kev cog qoob loo ncaj qha los yog kev siv tshuaj tua kab mob tsis yog tsuas yog siv cov khoom siv hlau pov tseg xwb, tab sis cov kua qaub seem, cov hlau hnyav, thiab cov organic additives kuj tuaj yeem ua rau av thiab dej muaj kuab paug.
Cov txheej txheem pyrometallurgical tsoos tuaj yeem tswj cov khoom siv tooj liab sib xyaw, tab sis lawv yog lub zog- siv zog, tsim cov pa tawm loj, thiab nyuaj rau kev sib cais ntawm cov hlau puag; thaum yooj yim acid leaching txoj kev yooj yim tsim cov dej khib nyiab loj uas muaj cov hlau hnyav. Yog li ntawd, tsim kom muaj tsawg -kev ua qias tuaj, muaj kev xaiv ntau, thiab siv cov tshuab tooj liab rho tawm tau los ua ib qho kev xav tau sai rau kev lag luam.
Electrolytic Copper Extraction: Cov txheej txheem ua tau zoo thiab huv si
Currently, electrolysis is widely recognized as one of the most promising technologies for treating copper plating waste. Its core principle is to utilize an electrochemical reduction reaction to selectively deposit copper ions in the waste into metallic copper, achieving efficient separation from the substrate material. This process boasts advantages such as a short process flow, high recovery rate (>95%), siab purity (txog 99.9%), thiab ib puag ncig tus phooj ywg. Cov txheej txheem nthuav dav:
Pretreatment thiab Classification: Cov pov tseg yog thawj zaug ua tiav los ntawm kev siv lub cev xws li crushing, sib nqus sib nqus, thiab sieving kom tshem tawm cov khoom tsis yog-metallic impurities xws li yas thiab roj hmab, thiab tom qab ntawd muab faib raws li cov khoom siv (xws li tooj liab-plated steel, tooj liab-plated hlau, ntshiab tooj liab shavings). Rau cov ntaub ntawv oiled hnyav, alkaline ntxuav thiab degreasing yuav tsum tau ua kom ntseeg tau tias tom qab electrolysis efficiency.
Kev npaj Electrolyte: Cov txheej txheem siv feem ntau yog sulfuric acid- tooj liab sulfate tov tov, nrog rau cov muaj pes tsawg leeg ntawm: Cu²⁺ concentration 30–50 g/L, H₂SO₄ concentration 150–200 g/L. Ib puag ncig acidic tiv thaiv Cu²⁺ hydrolysis thiab txhim kho cov tshuaj conductivity. Qee cov txheej txheem ntxiv me me ntawm chloride ions (Cl⁻) txhawm rau txhim kho anode passivation thiab ua kom muaj txiaj ntsig tam sim no.
Electrolytic Deposition: Pretreated tooj liab plating pov tseg yog siv los ua ib qho anode soluble, los yog tooj liab -muaj cov tshuaj npaj los ntawm cov kua qaub dissolution yog siv los ua cov electrolyte. Lub cathode yog stainless hlau phaj los yog ib tug ntshiab tooj liab pib ntawv. Nyob rau hauv DC hluav taws xob teb (tam sim no qhov ceev 150-300 A / m², cell voltage 1.8-2.5 V), tooj liab ions raug txo kom ntom ntom hlau tooj liab ntawm cathode. Rau steel-core tooj liab-plated qhov chaw, tooj liab txheej yaj nyiam dua, thaum cov hlau substrate tseem tshuav vim passivation nyob rau hauv sulfuric acid, ua tiav tsis siv neeg sib cais.
Product Collection thiab Refining: Tom qab stripping, tu, thiab ziab, cov tooj liab tso rau ntawm lub cathode tuaj yeem siv ncaj qha los ua cov khoom siv rau Cov Khoom Siv Hluav Taws Xob Siab, lossis ntxiv melted thiab cam khwb cia rau hauv daim hlau anode thiab pub rau hauv cov khoom siv electrolytic los tsim Qib A cathode tooj liab (purity ntau dua lossis sib npaug li 99.99%).
Daim ntawv thov Scenario nthuav dav thiab cov lus qhia yav tom ntej
Cov cuab yeej no tsis yog tsuas yog tsim nyog rau kev rov ua dua cov khoom seem ntawm ib qho -cov khoom tooj liab, tab sis kuj tuaj yeem ua cov khoom siv tooj liab los ntawm PCB etching khib nyiab, electroplating sludge, thiab ua tsis tiav tooj liab -silver contacts rau keyboards. Rau cov khoom pov tseg uas muaj cov hlau muaj txiaj ntsig xws li nyiaj thiab tin, cov txheej txheem electrolysis thiab rho tawm tuaj yeem ua ke kom ua tiav ntau- hlau synergistic rov qab.
Nyob rau hauv lub neej yav tom ntej, kev lag luam yog tsav peb qhov kev txhim kho loj:
Intelligent Control: Qhia pH online thiab Cu²⁺ concentration xyuas thiab tsis siv neeg ntxiv cov tshuab los txhim kho kev ruaj ntseg.
Ntsuab Electrolytes: Tshawb nrhiav cov organic acid lossis ionic kua tshuab kom txo tau cov corrosivity thiab ib puag ncig txaus ntshai.
Modular Khoom: Tsim me me, mobile electrolysis units los pab cov chaw faib hluav taws xob dismantling.
Nyob rau hauv xaus, los ntawm pov tseg hluav taws xob tiv tauj tooj liab rivets rau recycled siab -purity tooj liab, electrolytic tooj liab extraction technology yog los ua ib tug tseem ceeb txuas ntawm electronics manufacturing kev lag luam thiab kev lag luam ncig. Nws tsis tsuas yog txo qhov siab ntawm thawj tooj liab mining tab sis kuj tiv thaiv peb ib puag ncig hauv txoj kev huv thiab muaj txiaj ntsig. Tsav los ntawm ob- cov hom phiaj kev txhim kho cov pa roj carbon monoxide, tus nqi ntawm cov cuab yeej siv thev naus laus zis yuav dhau los ua qhov tseem ceeb.
Tiv tauj peb
Yog tias koj xav tau cov txheej txheem ntxaws ntxaws rauNtshiab tooj liab hluav taws xob tiv tauj Rivets, cov lus pom zoo xaiv cov cuab yeej, lossis tus tsav- cov phiaj xwm ntsuas ntsuas, thov hu rau peb. Peb yuav muab kev txhawb nqa kev tshaj lij rau koj thiab kev txheeb xyuas qhov ua tau raws li kev lag luam - tus qauv specifications.
