Cov teeb meem xav tau kev saib xyuas:

Cov ntawv tsis muaj sulfur yog ib daim ntawv tshwj xeeb rau txheej txheem kev kho mob ntawm PCB, uas yog khaws cia rau hauv qhov chaw txias thiab qhov cua, sib dhos kom zoo, kom deb ntawm tshav ntuj ncaj qha, deb ntawm qhov hluav taws kub thiab dej, thiab tiv thaiv qhov kub thiab txias, noo noo thiab kev sib cuag nrog kua (tshwj xeeb yog acid thiab alkali)!

specifications

Qhov hnyav: 60g, 70g, 80g, 120g.
Orthagonality tus nqi: 787 * 1092mm.
Loj: 898 * 1194mm
tuaj yeem txiav raws li cov neeg siv khoom xav tau.

Cia tej yam kev mob thiab txee lub neej.

Khaws rau hauv qhov chaw qhuav thiab huv si ntawm 18 ℃ ~ 25 ℃, kom deb ntawm qhov chaw hluav taws kub thiab dej, tsis txhob tshav ntuj ncaj qha, thiab kaw lub pob nrog lub txee lub neej ntawm ib xyoos.

Technical parameters ntawm cov khoom.

1. sulfur dioxide ≤50ppm.
2. Adhesive daim kab xev kuaj: saum npoo tsis muaj plaub hau ntog tshwm sim.

Daim ntawv thov

Feem ntau siv rau hauv cov nyiaj plated ntim, xws li Circuit Court boards, LEDs, circuit boards, hardware terminals, food protection articles, glass packing, hardware packaging, stainless steel phaj sib cais, thiab lwm yam.

Vim li cas koj thiaj xav tau ntawv tsis muaj sulfur?

Ua ntej peb tham txog vim li cas cov ntawv tsis muaj leej faj siv, peb yuav tsum tham txog cov khoom "PCB" (lub rooj tsav xwm luam tawm) tiv thaiv los ntawm cov ntawv tsis muaj sulfur-PCB yog kev txhawb nqa ntawm cov khoom siv hluav taws xob thiab ib qho tseem ceeb ntawm cov khoom siv hluav taws xob. kev lag luam.Yuav luag txhua yam khoom siv hluav taws xob, los ntawm cov khoom siv hluav taws xob thiab lub tshuab xam zauv mus rau cov khoos phis tawj thiab cov khoom siv sib txuas lus, xav tau PCB kom paub txog kev sib txuas hluav taws xob ntawm ntau yam khoom.

Lub cev tseem ceeb ntawm PCB yog tooj liab, thiab txheej tooj liab yooj yim ua rau cov pa oxygen hauv huab cua los tsim cov xim av tsaus nti cuprous oxide.Yuav kom tsis txhob oxidation, muaj cov txheej txheem ntawm cov nyiaj deposition hauv PCB manufacturing, yog li PCB board kuj hu ua nyiaj deposition board.Cov txheej txheem nyiaj tso nyiaj tau dhau los ua ib txoj hauv kev kho saum npoo kawg ntawm cov ntawv luam tawm PCB.

Cov ntawv ntim tsis muaj sulfur-dawb lub rooj tsavxwm, tab sis txawm tias cov txheej txheem nyiaj tso nyiaj tau txais los, nws tsis yog qhov tsis xws luag:

Muaj kev sib raug zoo ntawm cov nyiaj thiab leej faj.Thaum cov nyiaj ntsib cov roj hydrogen sulfide los yog sulfur ions hauv huab cua, nws yooj yim los tsim cov khoom hu ua silver sulfide (Ag2S), uas yuav ua rau cov ntaub ntawv sib txuas thiab cuam tshuam rau cov txheej txheem vuam tom ntej.Ntxiv mus, nyiaj sulfide yog qhov nyuaj heev rau yaj, uas ua rau muaj teeb meem loj hauv kev tu.Yog li ntawd, cov neeg txawj ntse engineers tau tuaj nrog txoj hauv kev los cais PCB los ntawm cov sulfur ions hauv huab cua thiab txo qhov kev sib cuag ntawm cov nyiaj thiab leej faj.Nws yog daim ntawv tsis muaj sulfur.

Txhawm rau ua kom tiav, nws tsis yog qhov nyuaj kom pom tias lub hom phiaj ntawm kev siv cov ntawv tsis muaj sulfur yog raws li hauv qab no:

Ua ntej, daim ntawv tsis muaj sulfur nws tus kheej tsis muaj leej faj thiab yuav tsis hnov ​​​​mob nrog cov nyiaj deposition txheej ntawm PCB nto.Siv daim ntawv tsis muaj sulfur los qhwv lub PCB tuaj yeem txo qhov kev sib cuag ntawm cov nyiaj thiab leej faj.

Qhov thib ob, daim ntawv tsis muaj leej faj kuj tuaj yeem ua lub luag haujlwm ntawm kev sib cais, tsis txhob muaj cov tshuaj tiv thaiv ntawm cov txheej tooj liab hauv qab cov nyiaj deposition txheej thiab cov pa oxygen hauv huab cua.

Hauv qhov txuas ntawm kev xaiv cov ntawv tsis muaj leej faj, muaj qhov ua kom yuam kev.Piv txwv li, daim ntawv tsis muaj sulfur yuav tsum tau ua raws li ROHS cov cai.High-zoo sulfur-dawb ntawv tsis tsuas yog tsis muaj leej faj, tab sis kuj nruj me ntsis tshem tawm cov tshuaj lom xws li tshuaj chlorine, lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, thiab lwm yam., uas ua tau raws li EU cov cai. qauv.

Hais txog qhov kub thiab txias, daim ntawv logistics muaj cov cuab yeej tshwj xeeb ntawm kev tiv thaiv qhov kub thiab txias (txog 180 degrees Celsius), thiab pH tus nqi ntawm daim ntawv yog nruab nrab, uas tuaj yeem tiv thaiv cov khoom PCB zoo dua los ntawm oxidation thiab yellowing.

Thaum ntim nrog cov ntawv tsis muaj sulfur, peb yuav tsum tau them sai sai rau qhov nthuav dav, uas yog, PCB board nrog nyiaj-immersed thev naus laus zis yuav tsum tau ntim tam sim tom qab nws tsim, thiaj li txo lub sijhawm sib cuag ntawm cov khoom thiab cov huab cua.Tsis tas li ntawd, thaum ntim cov PCB lub rooj tsavxwm, cov hnab looj tes tsis muaj sulfur yuav tsum hnav thiab yuav tsum tsis txhob kov cov electroplated nto.

Nrog rau qhov kev xav tau ntawm cov hlau lead-dawb PCB hauv Tebchaws Europe thiab Amelikas, PCB nrog nyiaj thiab tin deposition tshuab tau dhau los ua lub hauv paus ntawm kev ua lag luam, thiab cov ntawv tsis muaj sulfur tuaj yeem lav qhov zoo ntawm cov nyiaj los yog tin deposition PCB.Raws li hom ntawv ntsuab muaj ntawv, cov ntawv tsis muaj leej faj yuav muaj ntau dua thiab nrov hauv kev ua lag luam, thiab dhau los ua tus qauv ntim ntawm PCB hauv kev lag luam.

Yog vim li cas siv daim ntawv tsis muaj sulfur.

Koj yuav tsum hnav cov hnab looj tes tsis muaj sulfur thaum kov cov nyiaj plated board.Cov phaj nyiaj yuav tsum tau muab cais tawm ntawm lwm yam khoom los ntawm daim ntawv tsis muaj sulfur thaum kuaj thiab tuav.Nws yuav siv sij hawm 8 teev kom tiav cov nyiaj sinking board los ntawm lub sij hawm tawm ntawm cov nyiaj sinking kab mus rau lub sij hawm ntawm ntim.Thaum ntim, cov nyiaj plating board yuav tsum tau muab cais tawm ntawm lub hnab ntim nrog cov ntawv tsis muaj sulfur.

Muaj kev sib raug zoo ntawm cov nyiaj thiab leej faj.Thaum cov nyiaj ntsib hydrogen sulfide roj los yog sulfur ions nyob rau hauv cov huab cua, nws yog ib qho yooj yim los tsim ib qho tsis tshua muaj insoluble silver ntsev (Ag2S) (silver ntsev yog lub ntsiab ntawm argentite).Qhov kev hloov tshuaj lom neeg no tuaj yeem tshwm sim hauv qhov tsawg heev.Vim tias cov nyiaj sulfide yog grey-dub, nrog rau kev siv zog ntawm cov tshuaj tiv thaiv, nyiaj sulfide nce thiab thickens, thiab cov xim ntawm cov nyiaj maj mam hloov ntawm dawb mus rau daj mus rau grey los yog dub.

Qhov txawv ntawm daim ntawv tsis muaj sulfur thiab cov ntawv zoo tib yam.

Daim ntawv feem ntau siv hauv peb lub neej txhua hnub, tshwj xeeb tshaj yog txhua hnub thaum peb yog cov tub ntxhais kawm.Daim ntawv yog ib daim ntawv nyias ua los ntawm cov nroj tsuag fiber ntau, uas yog dav siv.Daim ntawv siv nyob rau hauv txawv teb yog txawv, xws li cov ntawv muaj thiab tsev neeg ntawv.Cov ntawv muaj xws li luam ntawv, ntawv tsis muaj sulfur, ntawv roj-absorbing, ntawv qhwv, kraft ntawv, ntawv pov thawj plua plav, thiab lwm yam, thiab cov ntawv hauv tsev xws li phau ntawv, daim ntaub so ntswg, ntawv xov xwm, ntawv tso quav tso quav, thiab lwm yam. Yog li niaj hnub no, cia peb piav qhia qhov txawv ntawm cov ntawv tsis muaj sulfur-dawb thiab cov ntawv ntau.

Daim ntawv tsis muaj sulfur

Cov ntawv tsis muaj sulfur yog ib daim ntawv tshwj xeeb padding siv hauv PCB cov txheej txheem nyiaj hauv cov tuam txhab tsim hluav taws xob kom tsis txhob muaj tshuaj lom neeg ntawm cov nyiaj thiab leej faj hauv huab cua.Nws txoj haujlwm yog txhawm rau tso nyiaj rau cov tshuaj lom neeg thiab zam cov tshuaj tiv thaiv ntawm cov nyiaj thiab sulfur hauv huab cua, ua rau yellowing.Yog tsis muaj leej faj, nws tuaj yeem zam qhov tsis zoo los ntawm cov tshuaj tiv thaiv ntawm leej faj thiab nyiaj.

Nyob rau tib lub sijhawm, daim ntawv tsis muaj leej faj kuj zam cov tshuaj tiv thaiv ntawm cov nyiaj hauv cov khoom siv electroplated thiab sulfur hauv huab cua, ua rau yellowing ntawm cov khoom.Yog li ntawd, thaum cov khoom tiav lawm, cov khoom yuav tsum tau ntim nrog cov ntawv tsis muaj sulfur sai li sai tau, thiab cov hnab looj tes tsis muaj sulfur yuav tsum tau hnav thaum tiv tauj cov khoom, thiab cov khoom siv electroplated yuav tsum tsis txhob tiv tauj.

Cov yam ntxwv ntawm daim ntawv tsis muaj leej faj: cov ntawv tsis muaj sulfur yog huv si, tsis muaj plua plav thiab nti, ua tau raws li ROHS cov cai, thiab tsis muaj sulfur (S), chlorine (CL), lead (Pb), cadmium (Cd), mercury (Hg), hexavalent chromium (CrVI), polybrominated biphenyls thiab polybrominated diphenyl ethers.Thiab tuaj yeem siv tau zoo dua rau PCB Circuit board hluav taws xob kev lag luam thiab kho vajtse electroplating kev lag luam.

Qhov txawv ntawm daim ntawv tsis muaj sulfur thiab cov ntawv zoo tib yam.

1. Cov ntawv tsis muaj sulfur tuaj yeem zam cov tshuaj tiv thaiv ntawm cov nyiaj hauv cov khoom siv electroplated thiab sulfur hauv huab cua.Ordinary ntawv tsis haum rau electroplating ntawv vim muaj ntau impurities.
2. Cov ntawv tsis muaj sulfur tuaj yeem cuam tshuam cov tshuaj tiv thaiv ntawm cov nyiaj hauv pcb thiab sulfur hauv huab cua thaum nws siv hauv kev lag luam pcb.
3. Cov ntawv tsis muaj sulfur tuaj yeem tiv thaiv plua plav thiab chips, thiab impurities nyob rau saum npoo ntawm electroplating kev lag luam yuav cuam tshuam cov nyhuv electroplating, thiab impurities hauv pcb Circuit Court tej zaum yuav cuam tshuam rau kev sib txuas.

Ordinary ntawv yog tsim los ntawm cov nroj tsuag fibers, xws li ntoo thiab nyom.Cov ntaub ntawv nyoos ntawm cov ntawv tsis muaj leej faj tsis yog cov nroj tsuag fibers xwb, tab sis kuj tsis yog cov nroj tsuag fibers, xws li hluavtaws fibers, carbon fibers thiab hlau fibers, thiaj li yuav tshem tawm cov sulfur, chlorine, txhuas, cadmium, mercury, hexavalent chromium, polybrominated. biphenyls thiab polybrominated diphenyl ethers los ntawm daim ntawv.Txhawm rau ua kom muaj qee qhov tsis txaus ntawm cov ntawv hauv paus, nws yog qhov zoo los txhim kho cov ntawv zoo thiab ua tiav lub hom phiaj ntawm kev ua kom zoo rau kev sib xyaw ua ke.