Mfundo zofunika kuziganizira:

Pepala lopanda sulfure ndi pepala lapadera la PCB pamwamba pa mankhwala, lomwe limasungidwa m'nyumba yosungiramo zinthu zoziziritsa kukhosi komanso mpweya wokwanira, zosungidwa bwino, kutali ndi dzuwa, kutali ndi magwero amoto ndi magwero a madzi, ndikutetezedwa ku kutentha kwakukulu, chinyezi ndi kukhudzana ndi zakumwa (makamaka asidi ndi alkali)!

mfundo

Kulemera kwake: 60g, 70g, 80g, 120g.
Mtengo wa Orthogonality: 787 * 1092mm.
Mtengo wowolowa manja: 898 * 1194mm.
Ikhoza kudulidwa malinga ndi zofuna za makasitomala.

Zosungirako ndi moyo wa alumali.

Sungani m'malo owuma komanso aukhondo pa 18 ℃ ~ 25 ℃, kutali ndi magwero amoto ndi magwero amadzi, pewani kuwala kwa dzuwa, ndikusindikiza paketiyo ndi shelufu ya chaka chimodzi.

Zaukadaulo magawo azinthu.

1. sulfure dioxide ≤50ppm.
2. Mayeso a tepi yomatira: pamwamba alibe chodabwitsa chogwa tsitsi.

Kugwiritsa ntchito

Amagwiritsidwa ntchito kwambiri pamapaketi opaka siliva, monga matabwa ozungulira, ma LED, matabwa ozungulira, ma terminals a hardware, zolemba zoteteza chakudya, ma CD agalasi, ma CD a hardware, kupatukana kwachitsulo chosapanga dzimbiri, etc.

Nchifukwa chiyani mukufunikira pepala lopanda sulfure?

Tisanalankhule chifukwa chake mapepala opanda sulfure amagwiritsidwa ntchito, tiyenera kulankhula za chinthu "PCB" (bodi losindikizidwa) lotetezedwa ndi pepala lopanda sulfure-PCB ndi chithandizo cha zipangizo zamagetsi ndi chimodzi mwa zinthu zofunika kwambiri pamagetsi. makampani.Pafupifupi mtundu uliwonse wa zida zamagetsi, kuyambira mawotchi apakompyuta ndi zowerengera mpaka makompyuta ndi zida zoyankhulirana, zimafunikira PCB kuzindikira kulumikizana kwamagetsi pakati pazigawo zosiyanasiyana.

Thupi lalikulu la PCB ndi mkuwa, ndipo wosanjikiza wa mkuwa umakhudzidwa mosavuta ndi okosijeni mumlengalenga kuti apange cuprous oxide yakuda.Pofuna kupewa okosijeni, pali njira yopangira siliva popanga PCB, kotero PCB board imatchedwanso bolodi lasiliva.Silver deposition process yakhala imodzi mwa njira zomaliza zochizira pamwamba pa PCB yosindikizidwa.

sulfure-free pepala ma CD wozungulira bolodi, koma ngakhale ndondomeko kaikidwe siliva kutengera, si kopanda chilema:

Pali kugwirizana kwakukulu pakati pa siliva ndi sulfure.Siliva ikakumana ndi mpweya wa hydrogen sulfide kapena ma ayoni a sulfure mumlengalenga, ndikosavuta kupanga chinthu chotchedwa silver sulfide (Ag2S), chomwe chimaipitsa chomangira cholumikizira ndikusokoneza njira yowotcherera.Komanso, silver sulfide ndizovuta kwambiri kusungunuka, zomwe zimabweretsa zovuta kwambiri pakuyeretsa.Choncho, akatswiri anzeru atulukira njira yodzipatula PCB ku ayoni sulfure mu mpweya ndi kuchepetsa kukhudzana siliva ndi sulfure.Ndi pepala lopanda sulfure.

Pomaliza, sizovuta kupeza kuti cholinga chogwiritsa ntchito pepala lopanda sulfure ndi motere:

Choyamba, pepala lopanda sulfure palokha liribe sulfure ndipo silingagwirizane ndi wosanjikiza wa siliva pa PCB pamwamba.Kugwiritsa ntchito pepala lopanda sulfure kukulunga PCB kumatha kuchepetsa kukhudzana pakati pa siliva ndi sulfure.

Chachiwiri, pepala lopanda sulfure lingakhalenso ndi gawo lodzipatula, kupeŵa zomwe zimachitika pakati pa mkuwa wosanjikiza pansi pa siliva ndi mpweya wa mpweya.

Mu ulalo wosankha pepala lopanda sulfure, pali zidule.Mwachitsanzo, pepala lopanda sulfure liyenera kukwaniritsa zofunikira za ROHS.Mapepala apamwamba kwambiri opanda sulfure samangokhala ndi sulfure, komanso amachotsa zinthu zoopsa monga chlorine, lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, ndi zina zotero, zomwe zimakwaniritsa zofunikira za EU. miyezo.

Pankhani ya kukana kutentha, mapepala opangira zinthu ali ndi katundu wapadera wotsutsa kutentha kwakukulu (pafupifupi madigiri 180 Celsius), ndipo mtengo wa pH wa pepala ndi wosalowerera, womwe ungateteze bwino zipangizo za PCB ku okosijeni ndi chikasu.

Pamene kulongedza ndi pepala wopanda sulfure, tiyenera kulabadira mwatsatanetsatane, kutanthauza PCB bolodi ndi luso siliva kumizidwa siliva ayenera mmatumba atangopangidwa, kuti kuchepetsa kukhudzana nthawi pakati mankhwala ndi mpweya.Kuonjezera apo, ponyamula bolodi la PCB, magolovesi opanda sulfure ayenera kuvala ndipo sayenera kukhudza pamwamba pa electroplated.

Ndi kufunikira kochulukira kwa PCB yopanda lead ku Europe ndi America, PCB yokhala ndi ukadaulo wasiliva ndi malata yakhala gawo lalikulu pamsika, ndipo mapepala opanda sulfure amatha kutsimikizira bwino za PCB yasiliva kapena malata.Monga mtundu wa pepala obiriwira mafakitale, pepala sulfure-free adzakhala otchuka kwambiri mu msika, ndi kukhala ma CD muyezo wa PCB makampani.

Zifukwa zogwiritsira ntchito mapepala opanda sulfure.

Muyenera kuvala magolovesi opanda sulfure mukamakhudza bolodi lasiliva.Silver mbale iyenera kulekanitsidwa ndi zinthu zina ndi pepala lopanda sulfure poyang'anira ndikugwira.Zimatenga maola 8 kuti amalize bolodi lomira lasiliva kuyambira nthawi yotuluka pamzere womira wasiliva mpaka nthawi yolongedza.Ponyamula, bolodi la siliva liyenera kupatulidwa ndi thumba loyikamo ndi pepala lopanda sulfure.

Pali kugwirizana kwakukulu pakati pa siliva ndi sulfure.Siliva ikakumana ndi mpweya wa hydrogen sulfide kapena ma ayoni a sulfure mumlengalenga, ndikosavuta kupanga mchere wosasungunuka kwambiri (Ag2S) (mchere wa siliva ndiye chigawo chachikulu cha argentite).Kusintha kwamankhwala kumeneku kumatha kuchitika pang'ono kwambiri.Chifukwa silver sulfide ndi imvi-wakuda, ndi kuchulukira kwa zomwe zimachitika, silver sulfide imachuluka ndikukhuthala, ndipo mtundu wa siliva umasintha pang'onopang'ono kuchoka kuyera kupita kuchikasu kupita ku imvi kapena wakuda.

Kusiyana kwa pepala lopanda sulfure ndi pepala wamba.

Mapepala amagwiritsidwa ntchito nthawi zambiri pamoyo wathu watsiku ndi tsiku, makamaka tsiku lililonse pamene tinali ophunzira.Pepala ndi pepala lopyapyala lopangidwa ndi ulusi wazomera, lomwe limagwiritsidwa ntchito kwambiri.Mapepala omwe amagwiritsidwa ntchito m'madera osiyanasiyana ndi osiyana, monga mapepala a mafakitale ndi mapepala apanyumba.Mapepala a mafakitale monga mapepala osindikizira, mapepala opanda sulfure, mapepala oyamwa mafuta, mapepala okulungidwa, mapepala a kraft, mapepala oletsa fumbi, ndi zina zotero, ndi mapepala apanyumba monga mabuku, zopukutira, nyuzipepala, mapepala a chimbudzi, ndi zina zotero. tiyeni tifotokoze kusiyana kwa pepala la mafakitale opanda sulfure ndi mapepala wamba.

Mapepala opanda sulfure

Pepala lopanda sulufule ndi pepala lapadera lapadding lomwe limagwiritsidwa ntchito mu PCB silvering process mu opanga ma board board kuti apewe kuchitapo kanthu kwamankhwala pakati pa siliva ndi sulfure mumlengalenga.Ntchito yake ndikuyika siliva mwamankhwala ndikupewa kusintha kwamankhwala pakati pa siliva ndi sulfure mumlengalenga, zomwe zimapangitsa kuti pakhale chikasu.Popanda sulfure, imatha kupewa zovuta zomwe zimachitika pakati pa sulfure ndi siliva.

Panthawi imodzimodziyo, pepala lopanda sulfure limapewanso kusintha kwa mankhwala pakati pa siliva mu electroplated mankhwala ndi sulfure mumlengalenga, zomwe zimapangitsa kuti mankhwalawa akhale achikasu.Choncho, mankhwalawo akatha, mankhwalawo ayenera kupakidwa ndi pepala lopanda sulfure mwamsanga, ndipo magolovesi opanda sulfure ayenera kuvala pokhudzana ndi mankhwalawo, ndipo malo opangidwa ndi electroplated sayenera kulumikizidwa.

Maonekedwe a pepala lopanda sulfure: pepala lopanda sulfure ndi loyera, lopanda fumbi komanso lopanda chip, limakwaniritsa zofunikira za ROHS, ndipo mulibe sulfure (S), chlorine (CL), lead (Pb), cadmium (Cd), mercury (Hg), hexavalent chromium (CrVI), polybrominated biphenyls ndi polybrominated diphenyl ethers.Ndipo angagwiritsidwe ntchito bwino PCB dera bolodi makampani zamagetsi ndi hardware electroplating makampani.

Kusiyana kwa pepala lopanda sulfure ndi pepala wamba.

1. Pepala lopanda sulufule limatha kupewa kusinthana kwamankhwala pakati pa siliva muzinthu zopangidwa ndi electroplated ndi sulfure mumlengalenga.Mapepala wamba sali oyenera pepala la electroplating chifukwa cha zonyansa zambiri.
2. Pepala lopanda sulufule limatha kuletsa bwino zomwe zimachitika pakati pa siliva mu pcb ndi sulfure mumlengalenga pomwe imagwiritsidwa ntchito pamakampani a pcb.
3. Sulfure wopanda pepala zingalepheretse fumbi ndi tchipisi, ndi zosafunika padziko makampani electroplating zingakhudze zotsatira electroplating, ndi zosafunika mu pcb dera zingakhudze kugwirizana.

Mapepala wamba amapangidwa makamaka ndi ulusi wa zomera, monga matabwa ndi udzu.Zopangira za pepala lopanda sulfure sizimangokhala ulusi wa mbewu, komanso ulusi wosamera, monga ulusi wopangira, ulusi wa kaboni ndi ulusi wazitsulo, kuti athetse sulfure, chlorine, lead, cadmium, mercury, hexavalent chromium, polybrominated. ma biphenyl ndi ma polybrominated diphenyl ethers kuchokera pamapepala.Pofuna kukonza zolakwika zina za pepala loyambira, ndizopindulitsa kukonza mapepala apamwamba ndikukwaniritsa cholinga chokonzekera kuphatikiza.