The secret of the tip

  Intelligent soldering machines play a vital role in the manufacturing industry. Especially for large factories, smart soldering machines are widely used for replacing labor in the production process and increasing the efficiency of multiple times to reduce labor costs greatly . The machine’s important consumable parts are also a great knowledge. How to extend the life of the tip? How to choose the right soldering iron? How to maintain the tip? Let RUICHI come to reveal the answer for you.

1.The tip of the soldering iron

Can be divided into three areas: heating, heat transfer and operation.


2.The tip structure

  The soldering iron head is composed of five kinds of metal materials: copper, iron, nickel, chromium and tin. The processing procedure is also complicated and elegant. It takes more than ten processes from the unloading production to the actual use. The ferry iron is the most critical in the electroplating process of the soldering iron. If the ferroelectric layer is too thick, it will directly affect the heat conduction and heating time is too long. And if the ferroelectric layer is thin, the iron layer will affect the soldering iron head and is not resistant to corrosion and easy to oxidize.

  The soldering iron head of our company adopts the iron plating process of special waveform power supply (AC and DC superimposed power supply) in the process of electric ferry. The iron plating layer with the features of high bonding strength, fast deposition speed and micro crack reduction.


3.Tips for Soldering Tips

1. Iron tip oxidation:

The operating temperature of the automatic soldering iron tip is generally set between 320 and 420 degrees Celsius. At the lower limit of 320 degrees, the soldering iron is relatively slow to oxidize; if it is set at 420 degrees Celsius, the soldering iron is accelerated faster than at least 1 time. It is manifested that the black-gray oxide film is prone to appear in the tin-stained part, which greatly affects the quality of the solder joint.

2. Corrosion peeling of protective layer:

The automatic soldering iron tip works in a high temperature environment, and the biggest damage to the soldering iron head is the corrosion of the working surface by the acidic substance. In practical work, direct corrosion perforation is not very common. The most prominent is that corrosion causes the surface layer of chrome to fall off, and the position of the tin is lost. The tin runs up, the tin does not come down, the solder joints vary in size, and the solder joints and false welds increase. First, it is recommended to select the weaker acid when selecting the solder wire, so that the corrosion from the source will be very good. The second is to communicate with the soldering iron factory, and pay special attention to the surface treatment of the soldering iron head, which can play an obvious role.

3,Soldering tip worn:

Regarding the wear problem, this is inevitable in actual use. The automatic soldering iron tip will contact the pad and contact the workpiece pin. Some automatic soldering machine tin surface cleaning uses a metal roller brush, which will also cause wear. The solution to the problem can be resorted to the help of the tip factory. In the production of the tip, it is a good choice to properly increase the hardness of the iron alloy layer.

4. Use and maintenance of the iron tip

1. Before soldering process:

(1) The tip of the soldering iron should be cleaned first. The surface can be cleaned with a moist cleaning sponge or air blowing function on the soldering robot. This can make the tip achieve good results.

(2) Firstly apply a layer of tin on the surface to protect the soldering iron from solder and better soldering, which is convenient for soldering.

(3) Check if the tip of the soldering iron is incomplete and whether there is a hole phenomenon;

2, In the soldering process:

(1) The first heating: the temperature should not be too high (do not exceed 300 ° C) to prevent it from being oxidized at high temperatures.

(2) Select the appropriate temperature:

1) Excessive temperature will weaken the function of the tip, accelerate its oxidation, and shorten the service life.

2) When working, try to use low temperature soldering.

3) It is generally recommended to use a temperature of 350 to 380 degrees. Small solder joints below 1.5mm use 350~360 degrees, 2.5mm or more. Large solder joints using 370~380 degrees.

3. After Soldering :

Turn off the device’s power switch, then use the air blow unit to clean the tip and cool down to lower temperature and then apply a new layer of tin to protect it.

5.How to choose the right soldering iron tip?

It is important to choose the size and shape of the tip. A suitable tip can make the job more efficient and increase the durability of the tip. In general, the size of the tip is chosen so as not to affect the proximity of the component, and the geometry that is in full contact with the solder joint is selected. Let’s take some of our products as an example. It can be applied to household appliance control board, automotive electronic control board, military instrumentation circuit board, computer control board, industrial equipment control board, LED control board, motor control board, outdoor LED display and so on.

1.Type D



2.Type K



3.Type C



4.Type Y



Different customer’s product with different requirements. 

Ruichi sets customer’s demand first as the business philosophy and is trying the best to do this for customers now. 

Standard, variety and customized solder tip can be accepted by us.

Please pay attention to the following articles for some new models solder tips.

Post time: Dec-04-2019
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