Do you know how Nomex braided sleeving is braided?

The field of wire and cable is the basic industry in my country. Over the years, the average annual growth rate of my country's wire and cable industry has reached more than 15%, which is already higher than that of foreign countries; as a matching product for wire and cable, Nomex braided sleeves are also growing.

With the rapid development of contemporary electronic information technology, the problem of electromagnetic induction leakage and influence is becoming more and more prominent. Nomex Braided Sleeve mainly has the function of mechanical equipment maintenance and interference signal shielding. The laying of Nomex Braided Sleeve and the surface of wires and cables is to avoid electromagnetic induction. The shielding protection of leakage and impact is also the key protection method to prevent the communication system from being paralyzed by nuclear magnetic resonance strikes in modern warfare. Different application scenarios have many other requirements for Nomex braided sleeves, such as; welding performance, durability Heat resistance, corrosion resistance, avoid air oxidation, electrical conductivity, flame retardant Nomex braided sleeve, excellent shielding performance, light weight, low cost and other problems.

For this problem, many Nomex braided sleeve manufacturers have specified the industry and corresponding performance requirements for Nomex braided sleeves, from the selection of raw materials, the maintenance of knitting equipment and the wire tension sensor during the whole weaving process. , The product has developed a new Nomex braided sleeve with light weight, good softness, good heat resistance, high strength, high weaving density, which can meet the requirements of different industries.

There are two protective layer pads under the goose-drop braided pitch diameter drive gear. When weaving, deviation occurs. It is updated to reduce the relative height of the protective layer pad at this point and increase a protective layer pad. Improve the meshing of the gears to ensure the control of the pitch diameter, improve the support force of the take-up line, and improve the consistency of the telescopic angular velocity.

The selection of raw materials is to better achieve the anti-electromagnetic induction leakage or anti-interference effect of Nomex braided sleeve, and at the same time achieve weldability, flexibility, light weight, avoid air oxidation, heat resistance and high toughness, etc. For the performance index value, Huiyunhai High-tech adopts four raw materials including tin-plated copper core wire, electro-nickel-plated copper core wire, tin-plated alloy copper wire and tin-plated copper-clad steel wire, and specifies that the relative wire diameters are 0.1mm respectively. There are two specifications and models of 0.12mm. Compared with the previous processing technology, the wire is thinner.

The reduction of wire diameter during the research and development process puts better requirements on the weaving process. Because the raw material of the wire is too thin, it is easy to cause broken wires during the weaving process. Change the paralleling shaft tool to the pay-off shaft tool, and use the special type for paralleling wire Single twisting machine construction and setting out, at the same time, change the tooling fixture of the paralleling machine to one that can install 48 spindles, adjust the paralleling schedule, and change the paralleling pitch diameter again. This method can make the supporting force of the paralleling evenly Consistent, no "wire pressing" situation.

According to the production speed of the Nomex braided sleeve, adjust the take-up brake pad appropriately, so that the speed of the take-up line is consistent with the speed of the pitch diameter gear. In order to better ensure that the new Nomex braided sleeve is more conducive to the sheathing of cables, the friction of the car brake pads is reduced at the take-up rotation transmission gear, so that the support force of the take-up line is reduced as much as possible, which can ensure that the support force of the take-up line is small and not easy Breaking off the product is beneficial to the high rate of broken wires in the whole weaving process, resulting in unnecessary waste. The new Nomex braided sleeve after weaving by this method is "empty tube shape", and there will be no compression "flattening" after the line row shape", which is very beneficial to the threading of wires and cables.