Njira Yopangira Zitsulo za Tin ya Electronic Solder
Tin, kapena yomwe imadziwika kuti Sn (chizindikiro: Sn, nambala ya atomiki: 50), ndi chitsulo chomwe chimagwira ntchito yofunika kwambiri m'mafakitale osiyanasiyana, makamaka popanga solder ya zida zamagetsi. Solder ndi chinthu chomwe chimagwiritsidwa ntchito kulumikiza zida zamagetsi pamalo achitsulo, nthawi zambiri chimakhala ndi chisakanizo cha zitsulo zosiyanasiyana, kuphatikizapo tini. Nkhaniyi ifotokoza mwatsatanetsatane njira yopangira chitsulo cha tini chomwe chimagwiritsidwa ntchito popanga solder yamagetsi, kuyambira kukumba miyala ya tini mpaka chinthu chomaliza, chokonzeka kugwiritsidwa ntchito.
Kukumba Matanthwe a Tin
Njira yopangira zitini imayamba ndi kukumba zitini. Zitini nthawi zambiri zimapezeka mu mawonekedwe a cassiterite (SnO2), yomwe ndi gwero lalikulu la zitini. Kukumba zitini kungachitike kudzera m'njira ziwiri zazikulu: migodi yotseguka ndi migodi ya pansi pa nthaka.
1. Kukumba Migodi Yotseguka
Kukumba m'maenje otseguka kumachitika m'malo osungiramo miyala omwe ali pafupi ndi dziko lapansi. Mwanjira imeneyi, nthaka pamwamba pa miyala yachitsulo imakumbidwa kuti iwonetse miyalayo. Zipangizo zolemera monga zokumba ndi ma bulldozer zimagwiritsidwa ntchito kunyamula miyalayo ndi nthaka yophimba.
2. Migodi Yobisika
Kukumba pansi pa nthaka kumachitika pamene miyala yamtengo wapatali ili pansi pa nthaka. Mwanjira imeneyi, matanthwe ndi mabowo amapangidwa kuti afikire ndikunyamula miyala yamtengo wapatali pamwamba pake.
Kukonza Matanthwe a Tin
Mchere wa tin ukangofufuzidwa bwino, gawo lotsatira ndikukonza mkuwawo kuti upeze chitsulo chenicheni cha tin. Kukonza kumeneku kumaphatikizapo magawo angapo, kuphatikizapo:
1. Kuchuluka kwa Maminerali
Kuchuluka kwa miyala yamtengo wapatali cholinga chake ndi kuwonjezera kuchuluka kwa zitini mu miyala yamtengo wapatali ndikulekanitsa zinyalala. Njirayi nthawi zambiri imachitika kudzera mu kuyandama kapena kutsitsa mphamvu yokoka. Pakutsitsa mphamvu yokoka, miyala yamtengo wapatali imaphwanyidwa ndikutsukidwa ndi madzi kuti ilekanitse tinthu topepuka ndi cassiterite yolemera.
2. Kuumitsa ndi Kupera
Pambuyo poika mchere wambiri, chitsulocho chimauma ndi kuphwanyidwa kukhala ufa wosalala kuti chikhale chosavuta kuchigwiritsa ntchito. Njira yopera imathandizanso kulekanitsa cassiterite ndi zinthu zosafunika.
3. Kuyika
Pambuyo poumitsa ndi kupukuta, miyala yochuluka ya tin inasonkhanitsidwa ndikuyikidwa mu ng'anjo yosungunulira kuti ichotse tin kuchokera ku cassiterite oxide yake.
Njira Yosungunula
1. Kuchepetsa
Mchere wokhuthala umalowetsedwa mu ng'anjo yosungunulira. Panthawiyi, malasha kapena zinthu zina zochepetsera zimawonjezedwa kuti zichepetse tin oxide kukhala tin yachitsulo. Yankho lonse ndi motere:
``
SnO2 + C → Sn + CO2
``
Njira yochepetsera imeneyi imapanga chitini chosungunuka ndi slag, zomwe ziyenera kulekanitsidwa.
2. Kuyeretsa
Kuyenga kumachitika kuti achotse zinthu zodetsa monga chitsulo, arsenic, ndi antimony zomwe zingatsale mu chitini chosungunuka. Njirayi ingaphatikizepo njira zingapo, kuphatikizapo vacuum distillation, electrolysis, kapena njira zina zakuthupi.
3. Kusindikiza
Pambuyo pa gawo loyeretsera, chidebe chosungunukacho chimathiridwa mu nkhungu kuti chipange mipiringidzo ya zitini kapena ingots. Zidebe zimenezi zimatha kugulitsidwa ngati zopangira kapena kukonzedwanso kwina ngati pakufunika.
Kupanga Tin Solder
1. Kupanga Ma Aloyi a Tin
Kuti apange chosungunula, tini nthawi zambiri imasakanizidwa ndi zitsulo zina monga lead, siliva, kapena mkuwa. Kuchuluka kwa chitsulo chilichonse kumadalira mtundu wa chosungunula chomwe mukufuna. Mwachitsanzo, chosungunula cha tin-lead, chomwe chimagwiritsidwa ntchito kwambiri pazinthu zamagetsi, chimakhala ndi chosakaniza cha 60/40, kutanthauza 60% tini ndi 40% lead. Komabe, chifukwa cha nkhawa zaumoyo zokhudzana ndi kugwiritsa ntchito lead, opanga ambiri asintha kugwiritsa ntchito chosungunula chopanda lead, chomwe nthawi zambiri chimakhala ndi chisakanizo cha tini, siliva, ndi mkuwa.
2. Kusungunula ndi Kusakaniza
Ma ingot a tin ndi ma alloy ena amasungunuka pamodzi mu ng'anjo yolowetsedwa kapena ng'anjo yamagetsi. Njira yosungunula imatsimikizira kuti zitsulo zonse za alloy zimasungunuka bwino ndikupanga alloy yofanana. Kusakaniza kumagwiritsidwa ntchito kuonetsetsa kuti gawo lililonse lachitsulo mu alloy yosungunula limagawidwa mofanana.
3. Kusindikiza ndi Kuziziritsa
Chotsukira chosungunukacho chimapangidwa kukhala waya kapena ndodo. Njira yowumbira nthawi zambiri imachitika pogwiritsa ntchito makina otulutsira kapena njira yoponyera. Pambuyo pochoka mu nkhungu, chotsukiracho chimaziziritsidwa mwachangu kuti chikhale cholimba. Mawonekedwe omaliza a chotsukiracho amatsimikiziridwa ndi momwe chimagwiritsidwira ntchito, kaya ndi waya, ndodo, kapena phala.
4. Kupaka ndi Kugawa
Pambuyo poziziritsa ndi kudula kukula kofunikira, chosungunula chimapakidwa m'makulidwe ndi mawonekedwe osiyanasiyana kuti chigulitsidwe kwa makampani opanga zamagetsi ndi ogwiritsa ntchito ena. Kuyika bwino ndikofunikira kuti solder ikhale yabwino kwambiri mpaka itagwiritsidwa ntchito.
Ubwino wa Tin mu Kusungunula kwa Ma Electronic
Kugwiritsa ntchito tini popanga solder yamagetsi kuli ndi zabwino zingapo zazikulu, kuphatikizapo:
1. Malo Ochepa Osungunula
Tin ili ndi malo otsika osungunuka (232°C) zomwe zimapangitsa kuti ikhale yoyenera kwambiri pokonza soldering, chifukwa siimafuna kutentha kwambiri komwe kungawononge zida zamagetsi.
2. Kuyendetsa bwino magetsi ndi kutentha
Tin ndi woyendetsa bwino magetsi ndi kutentha, kuonetsetsa kuti malo olumikizira magetsi ndi magetsi akuyenda bwino m'malo olumikizirana magetsi.
3. Mphamvu Yolimba Yomatira
Chotsukira chopangidwa ndi tin chimapanga malo olumikizirana olimba komanso olimba, omwe ndi ofunikira kuti zipangizo zamagetsi zizigwira ntchito bwino.
Mapeto
Njira yopangira zitsulo zachitsulo zomwe zimagwiritsidwa ntchito mu solder yamagetsi ndi njira zovuta zomwe zimafuna chidziwitso chapamwamba komanso ukadaulo. Kuyambira migodi ya chitsulo chachitsulo, kukonza, kusungunula, mpaka kupanga alloy ya solder ndi kupanga zinthu zomaliza, gawo lililonse limagwira ntchito yofunika kwambiri popanga solder yapamwamba kwambiri yomwe ndi yofunika kwambiri kumakampani amagetsi. Kumvetsetsa bwino njirayi kungathandize kuonetsetsa kuti zinthu zimagwiritsidwa ntchito bwino komanso mosamala, zomwe zimapangitsa kuti makampani ndi ogula apindule kwambiri.
