In the electronic wire harness processing, how to twist the wire and tinning

The processing of each electronic wiring harness is carefully manufactured through a number of strict and standardized processes, among which the twisted wire & tinning process is a key link in the processing process of electronic wiring harness. The quality control of the twisted wire tinning process is very important, and now Kaweei will introduce the tinning process of electronic wire in detail.

Ⅰ、The steps of the tinning process for electronic wires

1.Preparation materials: electronic wires, tin bars, fluxes, operating tables, tin pots, environmentally friendly sponges, etc.
2.Pre-heat the tin melting furnace: Check that the tin melting furnace is in good condition to make sure it is working properly. At the same time, add an appropriate amount of tin strips to the tin melting furnace, and preheat the tin pot to the temperature required by the temperature specification table to ensure that the tin water in the tin pot does not exceed the maximum capacity and avoid overflow.
3.Prepare the soldering flux: cut the sponge according to the shape of the flux box, put it into the box, add an appropriate amount of flux, and make the flux completely soak the sponge.
4.Twisted wire: Twist the prepared electronic wire together with a special fixture, pay attention to avoid sharp ends, and do not twist or break the copper wire.


5.Tinning: tinned the twisted copper wire into the sponge, so that the copper wire is completely stained with flux, and now immerse the copper wire in the tin water of the tin pot, and the tin dipping time is controlled at 3-5 seconds. Be careful not to burn the outer skin of the wire, and the tin coverage rate should be more than 95%.
6.Wire spun: The wire rod stained with tin water is thrown out to form a uniform tin layer on its surface.
7.Cleaning: After the tin dipping is completed, the worktop needs to be cleaned and the tin pot turned off.
8.Inspection: Check whether the wire skin is burned, whether the tinning layer of the copper wire is uniform and smooth, whether there are defects or bubbles, etc.
9.Testing: The tin-stained wire is tested for conductivity and corrosion resistance to ensure that it meets the requirements.

Ⅱ、The operation steps of the electronic wire twisted wire tinning process

1.Turn on the power switch and get ready to start machining.
2.According to the requirements of the drawing, confirm the product specifications and tin temperature, and refer to the temperature specification table to debug the temperature of the twisted wire tinned.
3.When the temperature reaches the set value, scrape off the solder dross on the surface and re-measure the temperature using a temperature tester.
4.After confirming that the temperature is normal, use your right hand to arrange the wires that need to be dipped in tin and dip them in tin at a 90° vertical angle. Then lift the wire and shake it to evenly distribute the tin water.
5.Dip the solder again at a 90° vertical angle, and the dipping time is controlled between 3-5 seconds. After dipping the tin, shake the wire again, and if the instruction has special requirements, it shall be operated according to the instruction.



Ⅲ、Precautions for soldering processing of electronic wire twisted wire


During the operation, it is important to pay attention to the following points:

1.Before turning on the power, please make sure that the tin water in the tin pot does not exceed the maximum capacity to avoid overflow.
2.During operation, hands should not touch the tin pot to prevent burns.
3.After each dipping tin, be sure to clean the work surface to ensure that it is neat and orderly.
4.After completing the operation, be sure to turn off the power to save energy and protect the environment.

Ⅳ、Technological characteristics of electronic wire twisted wire dipping processing

1.Increase electrical conductivity: The main purpose of tinning the twisted wire of the electronic wire is to improve the electrical conductivity of the electronic device. As a good conductor, tin can increase the conductivity of electronic wires, thereby reducing resistance and improving the performance of electronic devices.
2.Enhance corrosion resistance: Tinning of twisted electronic wires can also enhance the corrosion resistance of electronic wires. The tin layer can protect the electronic wires from oxidation, corrosion, etc., thereby extending the service life of electronic devices.
3.The process is mature and stable: the tinning process of electronic wire twisting wire has been developed relatively mature and stable, which can effectively ensure production efficiency and product quality. At the same time, the process is relatively simple, easy to master, and suitable for large-scale production
4.Strong customizability: The tinning process of electronic wire twisting wire can be customized according to different requirements. For example, parameters such as tin layer thickness, wire size, twisted wire shape, etc., can be adjusted according to the customer's needs to meet the customer's specific needs.
5.Wide range of application: The electronic wire twisting wire soldering process is suitable for various types of electronic wires, such as single-core wire, multi-core wire, coaxial wire, etc. At the same time, the process can also be used for a variety of different materials of wire, such as copper, aluminum, alloys, etc.

Post time: Nov-08-2023