Umuyoboro wa aluminium ni umuringa ushingiye ku muringa wicyuma uhemba hamwe nimikorere myiza yo gutandukana. Nibikoresho nkibikoresho bya elegitoroniki yikirahure cyangwa ibindi bikoresho byo gushimangirwa byatewe na resin, nibindi nkibikoresho byo kwizirika kuri kimwe cyangwa impande zombi. Umuzunguruko wa kangxin utangiza imikorere ya aluminium hamwe no kuvura ibintu hejuru.
Umuyoboro wa Aluminium
1.Ibikoresho byo gutandukana n'ubushyuhe
Isahani ya Aluminum ishingiye ku murinya ifite imikorere itandukanijwe n'ubushyuhe nziza, nicyo kintu cyingenzi cyane muri ubu bwoko bw'isahani. PCB ikozwe muri ntishobora kubuza neza ubushyuhe bwakazi bwibigize na subsites bipakiyeho, ariko kandi ubushyuhe bwihuse bwakozwe nububasha bihuye nibice bya Amplifier, ibigize imbaraga nyinshi, imbaraga ziminsi minini. Iratangwa kandi kubera ubucucike bugufi, uburemere bworoshye (2.7g / cm3), no kurwanya okiside, bityo bikaba umubare munini wurupapuro rwumuringa wumuringa wumuringa wambaye ibyuma Lamin. Kurwanya ubushyuhe buzuye bwa Suminum yahujwe ni 1.10 ℃ / W hamwe no kurwanya ubushyuhe ni 2.8 ℃ / W, biteza imbere cyane imiyoboro yumuringa.
2.Ibikoresho byiza nicyiza cyo gufata
Amatara ya Aluminium ashingiye ku muriro afite imbaraga n'ubufatanye bunini kandi bikomeye, bikaba byiza cyane kuruta intangiriro y'umuringa. Irashobora kumenya gukora imbaho nini yacapishijwe hejuru yicyuma, kandi ikwiriye cyane cyane kuzamura ibice biremereye kuri scistrate. Byongeye kandi, substrate ya aluminiyumu nayo ifite ubukonje bwiza, kandi irashobora guterana no gutunganywa ku nyundo, bumvikanyeho, bitagoramye, mugihe uhindagurika no kugoreka umuringa wakozwe na PCB udashobora.
3.Hight
Ku mirapo zitandukanye zuzuye umuringa, hari ikibazo cyo kwagura ubushyuhe (gushikama hagati), cyane cyane kwaguka mu cyerekezo cyinshi (z-axis) yinama yinama, yibasira ubwiza bwuzuye. Impamvu nyamukuru nuko umurongo wo kwagura umurongo wibisobanuro bitandukanye, nkumuringa, hamwe no kwagura umurongo wikirahure cya epoxy. Umurongo Kwagura umurongo wa substrate ya aluminium iri hagati, ni nto cyane kurenza urugero rwa resin ya resin, kandi irushwa umurongo wo kwagura umurongo, bifasha kwemeza ubuziranenge no kwizerwa byumuzunguruko wacapwe.
Kuvura hejuru yibikoresho bya aluminium
1. Gukuramo
Ubuso bwisahani ishingiye kuri aluminium ikomatajwe hamwe namavuta mugihe cyo gutunganya no gutwara abantu, kandi bigomba gusukurwa mbere. Ihame nugukoresha lisansi (lisansi rusange) nkigisubizo, gishobora guseswa, hanyuma ugakoresha amazi yo gukusanya amazi kugirango akureho amavuta. Koza hejuru n'amazi atemba kugirango arekure kandi adafite amazi.
2. Degrease
Substrate ya aluminium nyuma yo kuvura hejuru iracyafite amavuta ya simbumba hejuru. Kugirango ukureho burundu, shyira hamwe na sodium ikomeye ya alkali kuri 50 ° C muminota 5, hanyuma yoza amazi meza.
3. ETHINGE. Ubuso bwisahani ya aluminium nkibikoresho byifatizo bigomba kugira ububi runaka. Kuva aluminim substrate hamwe na firime ya aluminium hejuru yubuso bwibikoresho bya amphoterike, ubuso bwibikoresho shuri birashobora guteshwa agaciro ukoresheje acide, igisubizo cya alkaline. Byongeye kandi, ibindi bintu ninyongera bigomba kongerwaho igisubizo cya roughening kugirango ugere kuntego zikurikira.
4. Gusomana kw'imiti (kwibiza). Kuberako ibikoresho byibanze bya aluminium birimo ibindi byifuzo byanduye, biroroshye gukora ibintu bidasanzwe byubahiriza subrete mugihe cya roughering, bityo ibice bya motriornic byashizweho hejuru bigomba gusesengurwa. Dukurikije ibisubizo by'isesengura, tegura igisubizo gikwiye, hanyuma ushireho amakuru ya roumunum mu gisubizo cyangiritse kugirango umenye igihe runaka, kugirango ubuso bwisahani ya alumini isukuye kandi bufite isuku kandi birabagirana.
