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关于济南发光字焊接技术要求

页面更新时间:2016-06-03 11:47 来源:未知 作者:admin 点击:
蓝光、绿光LED焊接要求与济南发光字一样,以我们经常见到的济南发光字焊接的水准来看,而有这些的基本的请求,操作需要留意的事情如下:
Blu ray, green LED welding requirements and the same as the Ji'nan, as we often see the Ji'nan luminous word welding standards, and have the basic request, the operation need to pay attention to the following things:
1、生产时一定要戴防静电手套,防静电手腕,电烙铁一定要接地,禁止徒手接触济南发光字的两隻引线脚。因为济南发光字的防静电为100V,而在工作台上作业湿度为60%-90%时人体的静电会损坏发光二极体的结晶层,作业一段时间后(如10小时)二极体就会失效(不亮),严峻时会当即失效。
1, production must wear anti-static gloves, anti-static wrist, electric iron must be connected to ground prohibited unarmed contact Jinan luminous word two lead feet. Because Jinan luminous characters of anti-static 100V, and on the table operating humidity for 60 to 90 percent of the static electricity of the human body will damage to the light emitting diode crystal layer, after operation for a period of time (such as 10 hours) diode will failure (not bright), severe will immediately failure.
2、焊接温度为260℃,3秒。温渡过高,时间过长会烧坏芯片。为了更好地维护济南发光字,LED胶体与PC板应坚持2mm以上的间距,以使焊接热量在引脚中散除。
2, welding temperature is 260 degrees Celsius, 3 seconds. The temperature is too high, too much time will burn out the chip. In order to better maintain the Ji'nan luminous word, LED colloid and PC plate should adhere to the spacing of 2mm, in order to make the welding heat in the pin loose.
3、济南发光字的正常工作电流为20mA,电压的微小动摇(如0.1V)都将惹起电流的大幅度动摇(10%-15%)。因而,在电路设计时应依据LED的压降配对不同的限流电阻,以保证LED处于最佳工作状态。电流过大,LED会缩短寿命,电流过小,达不到所需光强。
3, the normal operating current of the Ji'nan light emitting word is 20mA, the voltage of the tiny shake (such as 0.1V) will cause the current greatly shaken (10%-15%). Therefore, in the circuit design should be based on the pressure drop of LED to match different current limiting resistance, in order to ensure that the LED is in the best working condition. The current is too large, LED will shorten the life, the current is too small, can not reach the required light intensity.
通常在批量供货时会将济南发光字分光分色,即同一包商品里的LED光强、电压、光色都是共同的,并在分光色表上註明。
Usually in the bulk supply will Jinan luminous characters spectrophotometric color, namely in the same package goods LED light intensity, voltage, light and color are common, and are indicated in the color table.