Zomwe Tiyenera Kudziwa Zokhudza "Tinning Rods"

Kukonzekera ndi zofunikira zamtundu wa ndodo / zolembera

Ndodo ya malata, monga dzina limatanthawuzira kuti ndi ndodo yachitsulo, imatchedwa mafakitale a tini. Makamaka ntchito yoweyula soldering ndi kumiza kuwotcherera, panopa mowa waukulu wa solder zosiyanasiyana zamagetsi; pang'ono amagwiritsidwanso ntchito powotchera lawi lamoto kapena kuwotcherera chitsulo chazigawo zazikulu zamapangidwe ndi zowotcherera zazitali. Ndiwofunika kwambiri komanso chofunikira kwambiri cholumikizira pazinthu zonse zamagetsi ndi zamagetsi ndipo kugwiritsidwa ntchito kwapadziko lonse pachaka kumakhala pafupifupi matani 100,000.

Kukonzekera kwa malata ndi ophweka, kuphatikizapo batching, kusungunuka ndi kuponyera, ndi mlingo wa okosijeni ndi zomwe zili muzitsulo ndi zosafunika zitsulo zimayendetsedwa mosamalitsa. Kutentha kosungunuka ndi kutentha kwachitsulo kumakhudza kwambiri ubwino wa malata. Kukonzekera kwa malata ndikosavuta ndipo luso lamakono ndilochepa, choncho mpikisano ndi woopsa kwambiri. Mitengo yamakono imangowonjezera ndalama zochepetsera kumtengo wa zipangizo. Mtengo wa malata ukasinthasintha kwambiri pakanthawi kochepa, phindu lochepa likhoza kuthetsedwa, kapenanso kutayika.

Zofunikira zazikulu za mtundu wa tini ndi izi:

(1) Pamwamba pa malata ndi osalala;

(2) Good fluidity ndi wettability pa kuwotcherera;

(3) Zabwino zamakina;

(4) Kuwala kwa solder;

(5) Zotsalira zochepa za okosijeni.

Zomwe zimawonongeka pamtunda wa malata ndi mawanga a maluwa ndi thovu. Zowonongeka izi zimachitika chifukwa cha kupanga ndi kugwiritsa ntchito nkhungu. Mwachitsanzo, palibe scraping pamwamba pa kupanga, dongosolo yozizira si bwino, ndipo nkhungu si yosalala, zomwe zidzabweretsa mavuto pamwamba. Choyambitsa matuzawo chikugwirizana ndi nyengo yomwe idapangidwira. Ogwira ntchito zopanga amatenga malata, osagwiritsa ntchito dzanja mwachindunji, chinyezi m'manja chidzakhudza kuwala kwa malata, mtundu wa malata ogwiritsira ntchito bwino mapepala apulasitiki, onse amatha kuona kuwala, osati kunyowa. Nthawi yosungiramo ikakhala yayitali kapena malo osungiramo ndi onyowa kwambiri, padzakhala wosanjikiza wa oxide pamwamba pa mzere wa malata, womwe umapangitsanso kuwala kwa mzere wa malata kuzimiririka, koma sikukhala ndi zotsatira zochepa pakugwiritsa ntchito. .

Kugawika kwa ma tin strips:

Zingwe za malata zimasankhidwa malinga ndi chitetezo cha chilengedwe, kuphatikizapo timizere tokhala ndi lead ndi timizere topanda lead.

Pakali pano, timizere ta malata amene amagwiritsidwa ntchito kawirikawiri ndi: tin copper-free free tin strip (Sn99.3Cu0.7), tin siliva copper-free free tin strip (Sn96.5Ag3.0Cu0.5), 0.3 silver lead- Mzere wa malata waulere (Sn99Ag0.3Cu0.7), Mzere wa malata apamwamba kwambiri wamtundu wa lead wopanda (SnSb).

The ambiri ntchito lead malata elekitirodi makamaka zikuphatikizapo: 63/37 solder bala (Sn63/Pb37), 60/40 solder bala (Sn60/Pb40) ndi kutentha solder bala (madigiri 400 pamwamba kuwotcherera).

Kuphatikiza pa zinthu zazikulu za malata, kutsogolera, mkuwa, siliva, nthawi zambiri zimakhala ndi zinthu zina zochepa, monga faifi tambala, antimoni, bismuth, mu, dziko lapansi losowa ndi zina zotero.

Zinthu zazing'ono za aloyi zomwe zili mumzere wa malata zimakhala ndi mphamvu yayikulu pamakina komanso makina a malata: bismuth imatha kuchepetsa kutentha kwa malata ndikuwongolera kunyowetsa ndi kufalitsa katundu, koma bismuth yochulukirapo imachepetsa kutopa kwa moyo komanso kusungunuka kwa solder. olowa, ndipo kuchuluka koyenera kwa bismuth ndi pafupifupi 0.2 ~ 1.5%. Ni akhoza kusintha mawotchi katundu ndi kutopa moyo wa solder olowa ndi kusintha microstructure ndi kuyenga njere. M'mapangidwe adongosolo a mankhwala, wopanga mwachiwonekere akuyembekeza kuti mzere wa malata ukhoza kukwaniritsa bwino kwambiri pazinthu zosiyanasiyana zogwirira ntchito, monga kuwotcherera, kutentha kosungunuka, mphamvu, pulasitiki ndi moyo wotopa, ndi zina zotero.

Ngati mukufuna zambiri za tungsten carbide ndipo mukufuna zambiri ndi zambiri, mutha KULUMIKIZANA NAFE pa lamya kapena makalata kumanzere, kapena TITUMIZANI MAIL pansi pa tsambali.