久久久久久久精品成人热小说,亚洲 欧美 激情 小说 另类,亚洲精品国产精华液,激烈 痉挛 抽搐 潮喷 MP4

News

How to maintain an electric soldering iron?

Release Date:2016-08-16
Electric soldering iron is the main tool used in welding engineering, mainly used to melt tin. To know how to maintain an electric soldering iron, you should know how many parts it is composed of and how to use it.
Electric soldering irons can be roughly divided into four parts:
1. Soldering iron tip and its fixing screw;
2. Heater;
3. Handle;
4. Iron power cord and its fixing screws, plug;
Simply put, the method of using a soldering iron tip is to apply an appropriate amount of solder to the soldering iron tip, touch the solder joint, and wait for the solder on the solder joint to completely melt and submerge the component lead. Then, gently lift the soldering iron tip up along the pins of the component and leave the solder joint.
There are many things to pay attention to when maintaining an electric soldering iron:
Before welding, the following points should be noted:
1. Clean the soldering iron tip thoroughly and remove any remaining solder slag on it;
2. Control the moisture content of the compressed sponge at a suitable humidity level, without dripping or being too low, and avoid welding defects such as damage to the soldering iron tip or failure to solder;
3. Ensure the safe grounding of the soldering iron.
During the operation of an electric soldering iron, the following points should be noted:
1. Do not leave the soldering iron tip in a high-temperature area for a long time to prevent surface electroplating cracking of the soldering iron tip;
2. Do not apply pressure to the soldering iron tip or rub against the welding point, as this can easily damage the soldering iron tip;
After using the soldering iron, please note the following:
1. Clean the soldering iron tip thoroughly;
2. Add a new layer of tin to the soldering iron tip. Plays a protective role.
3. The soldering iron tip should be cleaned regularly and any foreign objects inside the sleeve should be removed.
For the use of electric soldering iron, there are some precautions below:
1. Do not use soldering iron tips for work other than welding;
2. Do not strike the soldering iron tip;
3. Do not modify the welding table without authorization;
4. Do not use an electric soldering iron with water on your hands;
5. Keep the environment ventilated and deal with harmful gases that may occur during the welding process. If possible, smoke purifiers can be used.
展開(kāi)
久久夜色精品国产噜噜亚洲av| 粗一硬一长一进一爽一a级小说| 国产aⅴ激情无码久久久无码| 一本加勒比hezyo东京热高清| CAOPORN免费视频国产| 乳罩脱了喂男人吃奶视频| 少妇被爽到高潮喷水| 日日天干夜夜狠狠爱| 岳打开双腿开始配合交换| 车后座挺进朋友人妻女友| 2022国产成人精品视频人| 精品久久久久久国产| 黄瓜视频下载| 欧洲高清视频在线观看| 成人妇女免费播放久久久| 久久亚洲精品成人AV无码网站| 免费网站安全软件大全| 天天操天天干| 成人免费在线电影| 亚洲AV无码一区二区三区性色| 日韩精品人妻系列无码专区免费| 亚洲精品v天堂中文字幕| 一体一道久久88色合综合网| 欧美大片免费播放器| 国产成人一区二区三区| 亚洲中文久久精品无码| 天天躁夜夜躁狠狠躁2021A2| 一女三男做2爱a片免| 久久综合久久鬼色| 国产精品视频在线观看| 女人下面突然一紧一紧的| 亚洲日本一线产区二线产区 | 特黄a又粗又大又黄又爽a片| 在野外自慰和陌生人做了| 天天摸夜夜添狠狠添婷婷| 欧美亚洲一区二区三区| 欧美性猛交XXXX乱大交| JAPANESE熟女俱乐部| 中文精品无码中文字幕无码专区| 久久精品中文字幕一区| 亚洲欧美一区二区成人片 |