白光烙铁头焊接前要点松香,好多朋友一定也会经常这样做,白光烙铁头使用松香到底的作用是什么?
首先:松香是是什么?松香是俗称,它其实是一种助焊剂。助焊剂松香属于脂 松香中的一类产品,主要有黄色和淡黄色的两种,都是松香的深加工产品,能够溶解在醇溶剂中。
其次:松香在焊锡中的作用是:
**:烙铁头不沾锡,沾了松香后,容易将锡熔化并 沾在烙铁头上
**:锡丝做成很细,是因为要便于熔化,沾上松香,便于将细锡丝溶化 后变成圆润饱满 的水滴状,而不是乱跑
第三:焊锡直接滴在焊点上,焊点为清洗干净或 者有氧 化的话,很容易接触不牢, 一碰就掉,加入松香有利于去除氧化的负面效果, 是 焊锡更牢固
第四:没有焊锡,烙铁从焊点上移开时容易焊 锡粘连,造成 焊点不美观
从以上几点可以看出白光烙铁头使用松香的作用,在焊接过程中有很中重要的作用,所以我i们要有很漂亮的焊接产品,松香是功不可没的!
1.用松香,焊点会漂亮一些,用焊锡膏焊点会发黑。
2.焊电路板*好是带着松香焊,因为松香是助焊剂。但不能太多,有一点就行,初学维修的都会掌握不好分寸,经常焊一焊就好了,锡点不能大,也不能太小,多看电路板上的焊点。现在都是机了焊的板子,个别用人工补焊的,补焊的地方都是电流比较大电压比较高的地方。请看老式电子产品或老式黑白电视机用人工焊的。不好看,但结实。没有开焊。八十年代后期基本上都是机子焊的,也叫做波峰焊,又快又好,但是电流大一点的地方开焊比较多。焊锡膏只有焊接难上锡的铁件等物品时才用到,具有腐蚀性,一般只用松香就行了,松香的作用是析出焊锡中的氧化物,保护焊锡不被氧化,增加焊锡的流动性。
3.电子元件一般都是上好锡的,如果生锈要先刮亮,放到松香上用烙铁烫一下,再上锡。电路板刮亮以后可以直接插上已上锡的元件用松香芯焊锡丝焊接。在松香挥发完之前移开烙铁,如果焊锡发粘要再蘸点松香,焊锡凝固前不要移动元件。
白光烙铁头使用松香的作用英文说明
White iron head using rosin role
White iron head before the welding points of rosin, a lot of friends will do so often, white iron head using rosin exactly is what?
First: rosin is what? Rosin is known, it is in fact a kind of flux. Flux rosin belongs to a class of products in gum rosin, two main types of yellow and pale yellow, are products of deep processing of rosin, can be dissolved in alcohol solvents.
Secondly: the role of rosin in solders is:
The first: the soldering iron head not tin, with rosin, easy to tin melting and dip in the soldering iron head
Second: the tin wire made of very fine, is because of the need to facilitate melting, with rosin, facilitate the fine tin wire melted into a round shape of the droplets, and not run
Third: the solder drops directly in the solder joints, joint as clean or aerobic of words, very easy to contact is not strong, off, adding rosin is conducive to the negative effect of removing the oxidation of solder, is more firmly
Fourth: no solder, solder iron moves away from easy soldering tin solder joint adhesion, cause unsightly
Can be seen from the above points rosin as a flux, has an important role is in the welding process, so I I have a very beautiful welding products, rosin is undeniable!
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