Most of the products such as power cords are sold on the basis of quantity, so basically, a lot of power cords are produced on the production line every day, and because there are differences between different standard wires, then the production strength of the manufacturer is very important. The requirements are very high. Today we will briefly understand the process flow of domestic power cords. Generally speaking, our production wire is divided into several main parts, namely drawing, annealing, twisting, extrusion, Threading, armoring, adding protective sleeves, etc. Remember the steps, here is just a brief introduction to each process and the purpose of each process.
1. Wire drawing, the main components of the power cord are copper core or aluminum core, and an insulating layer. As the name suggests, wire drawing is to use a wire drawing machine to reduce the cross-section of the wire and increase the length at room temperature. Generally speaking, wire drawing is the primary process.
2. The main purpose of annealing is to enhance the toughness of the monofilament and reduce the strength of the monofilament, so as to meet the various requirements of the wire for the conductive core.
3. The main purpose of the so-called twisting is to enhance the flexibility of the wire so that it can be used later. The twisting is a more complicated process in all technological processes, and the requirements are higher than in other processes.
4. Insulation is actually covering the outer layer of the power cord with a layer of insulator. Of course, the specific process cannot be solved by such a simple sentence, and I have already said it in the content of the previous article. The insulation layer of a good power cord is also very particular, and it is also one of the criteria for evaluating whether the wire is of high quality, so the seemingly simple process actually took a lot of people's effort.
5. The formation of power cords is a relatively important process. For multi-core power cords, in order to ensure the formability and reduce the shape of the power cord, it is generally necessary to twist them into a circular shape. The mechanism of twisting is similar to that of conductor twisting, because the twisting pitch is larger, and most of them adopt the method of no back-twisting. Technical requirements for cabling: First, the twisting of the cable is caused by the twisting of the insulated wire core; the second is to prevent the insulating layer from being scratched.
7. The power line armor is laid on the underground power line, and a certain positive pressure effect can be accepted in the task, and the inner steel tape armor structure can be selected. The power cord is laid in a place with both positive pressure effect and tension effect (such as water, vertical shaft, or soil with large drop).
8. The handling of the protective sleeve is an important step because this step is directly related to the safety of the power cord. In many cases, the protective sleeve of the power cord must have many properties before it can be used, in order to prevent the damage of the protective layer from causing leakage, thus To cause safety problems, the protective layer of the general wire can be moisture-proof, waterproof, flame-retardant and so on.
The above is a brief production process of the power cord. The power cord manufacturing enterprises have developed to this day, and they have been unable to get through. It is very important for each manufacturer to produce different power cords according to different standards and ensure quality. In future development, it is believed that only power cords with better quality and more competitive prices can win the market.
