Important Features of Rolling of Wire Rods Mar27

Important Features of Rolling of Wire Rods...

Important Features of Rolling of Wire Rods Wire rods are normally rolled in a high speed rolling mill, where steel temperature is above 1,000 deg C, maximum speed of rolling exceeds 120 metres per second (m/s) and coils of wire rod produced can be upto 10 kilometers (km) long. During rolling of wire rods, usually 25 passes to 30 passes are taken in a continuous rolling mill. Wire rod is a material which has a very wide application. From components for the automotive industry, tire cord, electrodes, connecting elements such as nuts and bolts, springs, wire and wire products, steel reinforcements, and so on, everything is based on wire rod. That is why wire rod mill is normally designed with versatility in mind. The mill being an energy intensive mill, it becomes necessary that the optimum solutions are incorporated in the mill design without compromising on the flexibility. All size ranges, materials and alloys need to be produced efficiently and with high productivity in the wire rod mill. Wire rods are required to meet the wire rod users’ requirements of surface and internal quality as well as physical, chemical, mechanical, and metallurgical properties. Wire rods undergo post-processing such as drawing, forging, or machining into desired shapes and heat treatment for enabling the product to achieve the desired strength. Thus, the wire rods are required to be capable of ensuring good performance of the produced parts wherever they are used, and at the same time, to have good workability at different stages of the post-processing. The user of wire rods has three basic requirements namely (i) to eliminate or simplify one or more of the secondary or tertiary processing to improve productivity and reduce processing cost, (ii) to improve the functionality, i.e. to extend the...