Lead-dawb Electroplating ntawm Hluav Taws Xob Hluav Taws Xob Cov Hluav Taws Xob Cov Hluav Taws Xob Cov Hluav Taws Xob Hluav Taws Xob thiab cov khoom ntim khoom
Tso lus
Lead-dawb Electroplating ntawm Hluav Taws Xob Hluav Taws Xob Cov Hluav Taws Xob Cov Hluav Taws Xob Cov Hluav Taws Xob Hluav Taws Xob thiab cov khoom ntim khoom
Wafer pob ua los ntawm kev siv stencil luam ntawv lossis electroplating ua kom pom qhov ua tau ntawm cov ntawv thov tsis muaj hmoov txhuas hauv flip nti thiab nti qib ntim thiab sib dhos.
Leadless yog cov lus xa los ntawm Nyij Pooj thaum xyoo 1990s thiab tam sim no tau teb los ntawm European Union nrog cov cai nruj. Lub toxicity ntawm txhuas yog dav paub, thiab txawm hais tias tseem muaj kev sib cav txog seb cov txhuas hauv cov khoom siv hluav taws xob puas ua rau muaj kev hem thawj rau tib neeg thiab ib puag ncig, tib neeg tau txhawj xeeb txog kev nkag mus thiab cov pa phem los ntawm cov hlau lead hauv cov khoom siv hluav taws xob pov tseg. Tsis tas li ntawd, kev nthuav tawm ntawm cov tshuaj lom thaum lub sij hawm rov qab siv cov khoom siv lead ua kuj yog ib qho kev txhawj xeeb kub. Cov kev daws teeb meem feem ntau tsis zoo ib yam li cov kev hem thawj ntawm cov hmoov lead toxicity, tab sis theej muaj lwm yam kev cuam tshuam tsis zoo rau ib puag ncig, xws li cov ntsiab lus melting siab qhia tau hais tias muaj zog noj. Tau kawg, kev siv cov cuab yeej siv siab heev thiab cov khoom siv tshiab reflow soldering kub tej zaum yuav, rau qee qhov, ua tiav cov txiaj ntsig ntawm qhov siab melting point thiab qis zog noj. Tsis tas li ntawd, yog tias cov nyiaj uas muaj cov ntaub ntawv siv los hloov cov hlau lead-tin solder, nws yuav muaj kev cuam tshuam tsis zoo rau lub ecological ib puag ncig, uas yog qhov yuav tsum tau muaj cov mining loj thiab ua cov hlau muaj nuj nqis.
Cov hnub kawg ntawm kev cai lij choj
Tom qab ntau xyoo ntawm kev sib tham thiab kev sib tham, 25 European Union cov tswv cuab tam sim no tab tom siv cov cai txwv tsis pub siv cov txhuas hauv cov khoom siv hluav taws xob. Pib txij Lub Xya Hli 1, 2006, tag nrho cov khoom siv hluav taws xob siv nyob rau hauv European lag luam yuav tsum tsis muaj txhuas, nrog rau cov ntaub ntawv thiab kev sib txuas lus cov cuab yeej siv, khoom siv hluav taws xob, khoom siv hauv tsev, thiab lwm yam.
Kev kho deg chillers - Electroplating chillers feem ntau hu ua lub freezers, tub yees, chillers, chillers, thiab lwm yam. Vim lawv siv dav hauv ntau lub lag luam, lawv cov npe suav tsis tau. Nws cov cuab yeej hauv paus ntsiab lus yog lub tshuab ua haujlwm ntau yam uas tshem tawm cov kua vapor los ntawm compression lossis thermal absorption refrigeration cycles. Chav tsev compression chiller muaj plaub yam tseem ceeb: chav compression tub yees lub voj voog compressor, evaporator, condenser, thiab qee qhov ntsuas ntsuas kom ua tiav cov tub yees sib txawv. Lub tshuab nqus dej chiller siv dej ua cov tub yees thiab tso siab rau cov dej thiab lithium bromide tov ntawm lawv kom ua tiav kev sib raug zoo rau tub yees.
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