Oltin qimmat (-reaktiv bo'lmagan) metall bo'lib, u turli elektr ilovalarida ulagichlarning ish faoliyatini yaxshilaydi. Oltin qoplamadan foydalanishning afzalliklari quyidagilardan iborat:
1. Ajoyib korroziyaga chidamlilik
Gold is very resistant to oxidation or corrosion compared to other metals. Gold plating can act as an effective oxidation and corrosion barrier in situations where a connector's contacts may be exposed to corrosive substances or conditions. Therefore, gold-plated connectors are an excellent choice for applications where the connector or contacts may be exposed to more corrosive conditions.
Oltin bilan qoplangan konnektorlar uchun ilovalarga{0}}namligi yuqori muhitlar yoki tez-tez termal aylanish va korroziy tuzlar yoki kislotalar taʼsiri kiradi. Ko'proq talab qilinadigan ilovalarda samarali korroziya to'sig'ini yaratib, kondagi har qanday teshiklarni yo'q qilish uchun etarli oltin mavjudligini ta'minlash uchun og'irroq oltin konlari yoki hatto ikki{1}}fazali oltin konlari talab qilinishi mumkin.
2. Yuqori o'tkazuvchanlik
Gold is the third most conductive metal in the world after copper and silver. Gold, however, does not produce any oxides or other compounds, so it retains its high conductivity even at high temperatures or when exposed to corrosive environments. Gold's high consistent conductivity ensures stable current flow even at very low voltages, making gold an excellent choice for electronic applications where millivolts transmit milliamps.
3. Kuchaytirilgan chidamlilik
Sof oltinning qattiqligini oshirish uchun elektrolizlangan oltinni oz miqdorda nikel yoki kobalt bilan qotishtirish mumkin (< 90="" knoop)="" to="" as="" high="" as="" 200="" knoop.="" this="" hardened="" gold="" is="" often="" referred="" to="" as="" hard="" gold.="" when="" plated="" to="" sufficient="" thickness="" (="">50uin) elektrolitik yoki elektrsiz nikel substratlarida qattiq oltin takroriy bog'lanish davrlari uchun bardoshli qoplamani ta'minlaydi. Tabiiy yog'lanishi tufayli qattiq oltin aşınmaya va aşınmaya moyil emas.
4. Kengaytirish qobiliyati
Oltin egiluvchan metall bo'lgani uchun u moslashuvchan ulanishlar va kamonlarga mos keladi. Oltinning egiluvchanligi qoplamani bir nechta aloqa davrlariga bardosh berishga imkon beradi. Biroq, oltin bilan qoplangan elektr konnektorlari yoki prujinalar{0}}dasturning dizayn talablariga javob berishini ta'minlash uchun mos orqa panel materialini talab qiladi. Moslashuvchan kontaktlarni yoki kamonlarni elektrokaplashda, ko'pincha oltin bilan qoplangan{1}}orqa panel sifatida ishlab chiqarilgan nikel (masalan, nikel sulfamat) tavsiya etiladi.
5. Lehimlanadigan qatlam
Oltin qoplama ishonchli lehim birikmalari uchun mukammal sirt qoplamasi bo'lib, faqat yumshoq rozin oqimini va kislota faollashuvisiz izchil va bir xil namlashni talab qiladi. Oltin qoplama deyarli har qanday substratda, shu jumladan zanglamaydigan po'latdan yasalgan terminallarda yoki lehim orqali keyingi ulanishlar uchun ulagichlarda mumkin. Odatda, ishonchli lehimlanadigan oltin kontaktlarini hosil qilish uchun har bir tomonida faqat 0,00001 dyuymli yupqa yumshoq oltin konlari talab qilinadi, ammo og'irroq oltin konlarini ham lehimlash mumkin.
When soldered to gold electrodeposited layers, the gold plating diffuses into the solder joint through a mechanism called solid state diffusion. Due to this phenomenon, care should be taken not to exceed 3 percent by weight of gold in the solder joint, as this can lead to embrittlement of the solder joint itself. As a general rule, deposits less than 0.00005" per side will result in less than 3 percent gold by weight in the solder joint
6. Magnit bo'lmagan-
Nihoyat, oltin magnit emas. Bu elektromagnit maydonlar aralashishi mumkin bo'lgan joyda foydalidir. Misol uchun, oltin qoplama magnit-rezonans tomografiya (MRI) skanerlari kabi tibbiy asbob-uskunalarda ishlatiladigan ulagichlar uchun mos bo'lishi mumkin.
