Quick retelehela pcb holim kalafo HASL LF RoHS
Tlhaloso ea Sehlahisoa:
| Boitsebiso ba Motheo: | FR4 TG140 |
| Botenya ba PCB: | 1.6+/-10%mm |
| Palo ea Lera: | 2L |
| Botenya ba Koporo: | 1/1 oz |
| Phekolo ea sefahleho: | HASL-LF |
| Mask ea solder: | Bosoeu |
| Silkscreen: | Ntsho |
| Ts'ebetso e khethehileng: | Standard |
Kopo
Boto ea potoloho ea HASL ts'ebetso ka kakaretso e bua ka mokhoa oa pad HASL, e leng ho roala thini sebakeng sa pad ka holim'a boto ea potoloho.E ka bapala karolo ea anti-corrosion le anti-oxidation, hape e ka eketsa sebaka sa ho ikopanya pakeng tsa pad le sesebelisoa se rekisoang, le ho ntlafatsa ho tšepahala ha solder.Phallo e khethehileng ea ts'ebetso e kenyelletsa mehato e mengata e kang ho hloekisa, ho beha lik'hemik'hale tsa thini, ho inela le ho hlatsoa.Joale, ts'ebetsong e kang ho chesa moea o chesang, e tla itšoara ho theha maqhama pakeng tsa thini le sesebelisoa sa splice.Ho fafatsa ka thini libotong tsa potoloho ke mokhoa o sebelisoang hangata mme o sebelisoa haholo indastering ea tlhahiso ea elektronike.
LEad HASL le HASL e se nang lead ke mekhoa e 'meli ea kalafo ea holim'a metsi e sebelisoang haholo ho sireletsa likarolo tsa tšepe tsa liboto tsa potoloho hore li se ke tsa bola le oxidation.Har'a tsona, sebopeho sa HASL ea loto se entsoe ka 63% tin le 37% lead, ha HASL e se nang lead e entsoe ka thini, koporo le likarolo tse ling (tse kang silevera, nickel, antimony, joalo-joalo).Ha ho bapisoa le HASL e nang le loto, phapang pakeng tsa HASL e se nang loto ke hore e na le botsoalle haholoanyane tikolohong, hobane loto ke ntho e kotsi e behang tikoloho le bophelo ba batho kotsing.Ntle le moo, ka lebaka la likarolo tse fapaneng tse fumanehang ho HASL e se nang lead, thepa ea eona ea soldering le motlakase e fapane hanyane, 'me e hloka ho khethoa ho latela litlhoko tse ikhethileng tsa kopo.Ka kakaretso, litšenyehelo tsa HASL e se nang loto li phahame hanyane ho feta tsa HASL ea loto, empa ts'ireletso ea eona ea tikoloho le ts'ebetso ea eona li ntle, 'me e ratoa ke basebelisi ba bangata.
Bakeng sa ho latela taelo ea RoHS, lihlahisoa tsa boto ea potoloho li hloka ho fihlela maemo a latelang:
1. Likahare tsa loto (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (Cr6+), polybrominated biphenyls (PBB) le polybrominated diphenyl ethers (PBDE) li lokela ho ba ka tlaase ho tekanyo e boletsoeng.
2. Litaba tsa lirafshoa tsa bohlokoa tse kang bismuth, silevera, khauta, palladium, le platinum li lokela ho ba ka har'a meeli e utloahalang.
3. Likahare tsa halogen li lokela ho ba ka tlase ho tekanyo e boletsoeng, ho kenyeletsoa chlorine (Cl), bromine (Br) le iodine (I).
4. Boto ea potoloho le likarolo tsa eona li lokela ho bontša litaba le tšebeliso ea lintho tse chefo le tse kotsi tse amehang.E kaholimo ke e 'ngoe ea maemo a mantlha a hore liboto tsa potoloho li ikamahanye le taelo ea RoHS, empa litlhoko tse ikhethileng li hloka ho khethoa ho latela melao le maemo a lehae.
FAQs
HASL kapa HAL (bakeng sa boemo ba moea o chesang (solder)) ke mofuta oa ho qetela o sebelisoang libotong tsa potoloho tse hatisitsoeng (PCBs).PCB hangata e qoelisoa ka bateng ea solder e qhibilihisitsoeng e le hore libaka tsohle tsa koporo tse pepesitsoeng li koaheloe ke solder.Solder e feteletseng e tlosoa ka ho fetisa PCB pakeng tsa lithipa tsa moea o chesang.
HASL (E Tloaelehileng): Ka tloaelo Tin-Lead - HASL (Lead Free): Ka tloaelo Tin-Copper, Tin-Copper-Nickel, kapa Tin-Copper-Nickel Germanium.Botenya bo tloaelehileng: 1UM-5UM
Ha e sebelise solder ea Tin-Lead.Ho e-na le hoo, ho ka sebelisoa Tin-Copper, Tin-Nickel kapa Tin-Copper-Nickel Germanium.Sena se etsa hore HASL ea Lead-Free e be khetho ea moruo le e lumellanang le RoHS.
Hot Air Surface Leveling(HASL) e sebelisa loto e le karolo ea alloy ea eona ea solder, e nkoang e le kotsi ho batho.Leha ho le joalo, Lead-free Hot Air Surface Leveling (LF-HASL) ha e sebelise loto e le motsoako oa eona oa solder, e leng se etsang hore e sireletsehe bakeng sa batho le tikoloho.
HASL ke ea moruo ebile e fumaneha hohle
E na le solderability e ntle haholo le bophelo bo botle ba sethala.
