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【正文】 Temp profile錫膏 /固定膠品質(zhì)來(lái)料品質(zhì)全熱風(fēng)對(duì)流鏈條 +鏈網(wǎng)偉送自動(dòng)鏈條潤(rùn)滑五、回焊爐 (Heller 1800exl)SP:設(shè)定溫度PV:實(shí)際溫度BELT:傳送速度錫膏溫度曲線SMT Reflow Soldering Profile for solder paste (1)Keep the slope low to minimize motherboard warping during preheat and cool down.Peak temp 215+/10deg CSlope 3degC/secTime above liquidus 4590 secondsSlope 25degC/secHold at 140183 deg C for 60~90Seconds183 CBoard
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