Into the intelligent automatic soldering process technology

Intelligent soldering machines play a vital role in the manufacturing industry, especially for large factories, intelligent soldering machines are widely used, replacing labor in the production process, increasing the efficiency by many times while greatly reducing labor costs, automatic soldering machines It is an automatic equipment that replaces manual soldering. It is generally used in the post-welding part. The main advantages are: fixed tin quantity, consistent solder joints, and quality assurance. The automatic soldering machine mainly has three soldering methods: soldering, drag soldering, and shaking soldering. Generally speaking, these three methods can meet the soldering needs of different products.


With the continuous development of the electronics industry, especially the rise of the microelectronics industry, automatic soldering machines have become more and more popular as an excellent method to replace manual welding. Especially in the last one or two years, as China ’s demographic dividend has reached an inflection point, the labor costs of factories have become higher and higher. This tool that can save people and improve efficiency is generally welcomed by factory owners. As a new tool, with its popularity and increase, it is necessary to formulate an industry standard, so we are gradually accumulating a set of our own standards based on our years of experience in this industry, and also leading The development of automatic soldering process. Below we will focus on the following aspects:


1. The principle of automatic soldering

The so-called automatic soldering refers to the automatic soldering machine. Most of the current popular on the market is the semi-braking soldering machine, which is what we usually call the automatic soldering machine. As for the fully automatic soldering machine, it is still relatively rare on the market. The principle is to find out the position of each solder point through a programmer (teaching box), set the coordinates, store it in the robot arm, and then select the appropriate soldering iron head and the tin wire used, and at the same time, send the tin system The wire is sent to the forefront of the high-temperature soldering iron head to achieve the purpose of soldering. The movement of the entire system is realized by the mechanical arm, the most important of which is the temperature control system and the tin feeding system. At present, standard machines are more popular in the market, and of course, non-standard machines are also more commonly used in the electronics industry.

 Second, the choice of automatic soldering

 For a craftsperson, what kind of product is more suitable for automatic soldering is a esoteric thing. Generally speaking, it is possible to introduce automatic soldering into any product that can be soldered with a hand soldering iron. But there are also many misunderstandings, that is, not every product is suitable for automatic soldering. So how do you distinguish them? We give you a few criteria to choose from below:

1. Whether the solder joint is suitable for soldering with a hand soldering iron.

2. Whether the components around the solder joint affect the space of automatic soldering.

3. Whether the solder joint can be successfully welded at one time.

4. The amount of heat absorbed by the solder joint.

5. The size of the pad.

6. The shape and spatial distribution of solder joints.

7. The batch size of the product.

 3. Selection of automatic soldering method

 For automatic soldering, it is very similar to manual soldering. There are only two methods for us to choose, namely spot welding and pull welding (drag welding). For our technicians, first of all, we must determine whether to use spot welding or pull welding or a mixed mode of spot welding and pull welding. For those welding spots with irregular distribution of welding spots, selecting spot welding will be a better welding method, and for those arranged neatly and orderly, it is better to use pull welding. If there are both irregularly arranged welding spots and regularly arranged welding spots on the same product, and the same machine is used for welding, it can only be welded by a combination of spot welding and pull welding .


Fourth, the choice of automatic soldering iron head


Whether automatic soldering can achieve a high quality, the choice of soldering iron tip is crucial. At present, there are many types of soldering iron tips of various manufacturers, and the styles are also varied. They all have a common purpose, which is to weld your products. Therefore, different solder joints should be made with different soldering iron tips.

  Five, the choice of tin wire

  As an indispensable raw material for automatic soldering, solder wire plays a decisive role in the soldering process. Its quality directly determines the quality of solder joints. Generally speaking, automatic soldering has strict requirements on the flux content in the solder wire, generally reaching about 3% or even higher. If the flux content cannot reach or is too low, the activity (fluidity) of the molten tin will be poor, which will greatly affect the effect of automatic soldering. This is the reason why the common solder wire that can be used for manual welding cannot be used for automatic welding.

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