区分焊锡膏与助焊剂

维基说明

产品上的错误的中文翻译甚至是错误英文存在已久，不得不来“正个名”。

Solder paste (or solder cream) is a material used in the manufacture of printed circuit boards to connect surface mount components to pads on the board. It is also possible to solder through hole pin in paste components by printing solder paste in/over the holes. The paste initially adheres components in place by being sticky, it is then heated (along with the rest of the board) melting the paste and forming a mechanical bond as well as an electrical connection. The paste is applied to the board by jet printing, stencil printing or syringe and then the components are put in place by a pick-and-place machine or by hand.[1]

上文对应的中文名应该是焊膏、焊锡膏或锡膏。

In metallurgy, a flux (derived from Latin fluxus meaning "flow") is a chemical cleaning agent, flowing agent, or purifying agent. Fluxes may have more than one function at a time. They are used in both extractive metallurgy and metal joining.[2]

上文对应的中文应应该是助焊剂。

看图分类

下面这种助焊剂简到了很多次，但一直被上面的英文“solder paster”困惑。

找到他们公司官网[4]，看到“help”字样后，我很肯定它是助焊剂了。

区分助焊剂和焊锡膏很简单，通过颜色观察，淡黄色或棕黄色的是焊锡膏，灰色的是锡膏（下图所示）。

另外，前面说的棕黄色是在stackOverflow上看到的。[4]

This seems to be an Asian-English thing- calling flux "soldering paste" or even "solder paste". Sometimes the word "cream" is in there.

I've seen it in China, Hong Kong and Taiwan, and this "soldering paste" is from the Philippines.[3]

安全注意事项

1\对设备：

国产的若不知道成分如何，对应 ISO 9454-1 哪一腐蚀等级，使用后记得用酒精洗一下。

2\对人：

Acid flux types (not used in electronics) may contain hydrochloric acid, zinc chloride or ammonium chloride, which are harmful to humans. Therefore, flux should be handled with gloves and goggles, and used with adequate ventilation.

Prolonged exposure to rosin fumes released during soldering can cause occupational asthma (formerly called colophony disease in this context) in sensitive individuals, although it is not known which component of the fumes causes the problem.

While molten solder has low tendency to adhere to organic materials, molten fluxes, especially of the resin/rosin type, adhere well to fingers. A mass of hot sticky flux can transfer more heat to skin and cause more serious burns than a comparable particle of non-adhering molten metal, which can be quickly shaken off. In this regard, molten flux is similar to molten hot glue.[1]

 

参考链接

[1] Solder paste https://en.wikipedia.org/wiki/Solder_paste

[2] Flux (metallurgy) https://en.wikipedia.org/wiki/Flux_(metallurgy)

[3] Solder Paste vs Solder Flux  https://electronics.stackexchange.com/questions/309954/solder-paste-vs-solder-flux

[4] http://www.gunaisi.com/Help-the-solder-paste-p105.html