Shanxi Beilun Jubang Innovation Technology Co., Ltd.

Pure Iron for Resistance Wire and Material

Pure iron wire and material are valuable components in the manufacture of resistors. Their unique electrical properties and processing flexibility make them ideal choices for creating precise and reliable resistors that are essential for the operation of electronic circuits and devices.

The production of pure iron coils for resistor material involves a meticulous process to ensure the highest quality and performance.

Material Selection

The process begins with selecting high-purity iron, known for its low resistivity and excellent thermal conductivity. These properties are essential for resistor applications, where consistent electrical resistance and heat dissipation are crucial.

Melting and Casting

High-purity iron is melted in an electric arc furnace to achieve the desired purity level. The molten iron is then cast into billets, which are the starting material for further processing.

Rolling

The billets are hot rolled into sheets or strips. Hot rolling enhances the mechanical properties of the iron and prepares it for further refinement. This stage ensures the material has the appropriate thickness and structural integrity for coil production.

Cold Rolling

The hot-rolled strips undergo cold rolling to achieve the final thickness and improve the surface finish. Cold rolling enhances dimensional accuracy and mechanical strength, making the iron suitable for winding into coils.

Annealing

The cold-rolled strips are annealed in a controlled atmosphere to relieve internal stresses and enhance the material's ductility. This step is crucial for ensuring the coils can be wound without cracking or breaking.

Slitting and Winding

The annealed strips are slit into narrow widths suitable for winding. These strips are then wound into coils, ensuring consistent tension and alignment to maintain uniform resistance.

Surface Treatment

The coils may receive a surface treatment to prevent oxidation and corrosion, ensuring long-term stability and performance. Common treatments include passivation or coating with a protective layer.