Ukujika ngokukhawuleza unyango lomphezulu we-pcb HASL LF RoHS
Inkcazo yeMveliso:
| Izinto ezisisiseko: | FR4 TG140 |
| Ukutyeba kwePCB: | 1.6+/-10%mm |
| Ubalo lomaleko: | 2L |
| Ukutyeba kobhedu: | 1/1 oz |
| Unyango lomphezulu: | I-HASL-LF |
| Imaski yeSolder: | Mhlophe |
| Isikrini sesilika: | Mnyama |
| Inkqubo ekhethekileyo : | Umgangatho |
Isicelo
Inkqubo ye-HASL yebhodi yesekethe ibhekisela ngokubanzi kwinkqubo ye-HASL ye-pad, eyona nto yokugqoka i-tin kwindawo ye-pad ebusweni bebhodi yesekethe.Iyakwazi ukudlala indima ye-anti-corrosion kunye ne-anti-oxidation, kwaye inokunyusa indawo yoqhagamshelwano phakathi kwepadi kunye nesixhobo esithengiswayo, kunye nokuphucula ukuthembeka kwe-soldering.Ukuhamba kwenkqubo ethile kubandakanya amanyathelo amaninzi afana nokucoca, ukuchithwa kweekhemikhali ze-tin, ukucwina, kunye nokuhlamba.Emva koko, kwinkqubo efana ne-soldering yomoya oshushu, iya kusabela ukwenza ibhondi phakathi kwe-tin kunye nesixhobo se-splice.Ukutshiza i-tin kwiibhodi zeesekethe yinkqubo esetyenziswa ngokuqhelekileyo kwaye isetyenziswa ngokubanzi kwishishini lokuvelisa i-electronics.
I-HASL ekhokelayo kunye ne-HASL engenalo i-lead-i-lead-free-HASL yitekhnoloji yonyango yomphezulu esetyenziselwa kakhulu ukukhusela amacandelo esinyithi eebhodi zeesekethe kwi-corrosion kunye ne-oxidation.Phakathi kwazo, ukubunjwa kwe-HASL yelothe yenziwe nge-63% ye-tin kunye ne-37% ilothe, ngelixa i-HASL engenalo i-load yenziwe nge-tin, ubhedu kunye nezinye izinto (ezifana nesilivere, i-nickel, i-antimony, njl.).Xa kuthelekiswa ne-HASL esekwe kwilothe, umahluko phakathi kwe-HASL engenalothe kukuba ihambelana nokusingqongileyo, kuba ilothe yinto eyingozi ebeka esichengeni imekobume kunye nempilo yabantu.Ukongezelela, ngenxa yezinto ezahlukeneyo eziqulethwe kwi-HASL engenalo i-lead, i-solder yayo kunye neempawu zombane zihluke kancinci, kwaye kufuneka zikhethwe ngokweemfuno ezithile zesicelo.Ngokubanzi, ixabiso le-HASL engenalothe liphezulu kancinane kunelo le-HASL yelothe, kodwa ukhuseleko lwayo lokusingqongileyo kunye nokusebenza kwayo kungcono, kwaye ithandwa ngabasebenzisi abaninzi nangakumbi.
Ukuze uthobele umyalelo we-RoHS, iimveliso zebhodi yesekethe kufuneka zihlangabezane nezi meko zilandelayo:
1. Umxholo welothe (Pb), i-mercury (Hg), i-cadmium (Cd), i-hexavalent chromium (Cr6 +), i-biphenyls ye-polybrominated (PBB) kunye ne-polybrominated diphenyl ethers (PBDE) kufuneka ibe ngaphantsi kwexabiso lomda ochaziweyo.
2. Isiqulatho seentsimbi ezixabisekileyo ezifana nebismuth, isilivere, igolide, ipalladium, kunye neplatinam kufuneka ibe phakathi kwemida efanelekileyo.
3. Umxholo we-halogen kufuneka ube ngaphantsi kwexabiso lomda ochaziweyo, kuquka i-chlorine (Cl), i-bromine (Br) kunye ne-iodine (I).
4. Ibhodi yesekethe kunye namacandelo ayo kufuneka ibonise umxholo kunye nokusetyenziswa kwezinto ezinobuthi ezinobuthi neziyingozi.Oku ngasentla ngenye yeemeko eziphambili zeebhodi zeesekethe ukuba zihambelane nomyalelo we-RoHS, kodwa iimfuno ezithile kufuneka zigqitywe ngokwemigaqo kunye nemigangatho yendawo.
Ii-FAQs
I-HASL okanye i-HAL (yomoya oshushu (i-solder) yokulinganisa) luhlobo lokugqiba olusetyenziswa kwiibhodi zeesekethe eziprintiweyo (PCBs).I-PCB ikholisa ukuntywiliselwa kwibhafu ye-solder etyhidiweyo ukuze yonke imiphezulu yobhedu eveziweyo igqunywe ngesolder.I-solder egqithisileyo isuswa ngokudlula i-PCB phakathi kweemela zomoya oshushu.
I-HASL (i-Standard): Ngokuqhelekileyo i-Tin-Lead - HASL (iKhokelo yamahhala): Ngokuqhelekileyo i-Tin-Copper, i-Tin-Copper-Nickel, okanye i-Tin-Copper-Nickel Germanium.Ubungqingqwa obuqhelekileyo: 1UM-5UM
Ayisebenzisi isolder yeTin-Lead.Endaweni yoko, iTin-Copper, Tin-Nickel okanye iTin-Copper-Nickel Germanium isenokusetyenziswa.Oku kwenza i-HASL engaKhokheliyo ibe lukhetho olunoqoqosho kunye ne-RoHS oluthobelayo.
I-Hot Air Surface Leveling (HASL) isebenzisa ilothe njengenxalenye ye-solder alloy yayo, ethathwa njengeyingozi ebantwini.Nangona kunjalo, iLead-free Hot Air Surface Leveling (LF-HASL) ayisebenzisi ilothe njenge-alloy yayo ye-solder, iyenza ikhuseleke kubantu kunye nokusingqongileyo.
I-HASL yonga kwaye ifumaneka ngokubanzi
Inokuthengiswa okugqwesileyo kunye nobomi obuhle beshelufu.
