In fact, cold drawn wire and annealed wire do look very similar. If they are not carefully identified, they cannot be distinguished. Cold drawn wire and annealed wire also have a wide range of applications in the market, but many users do not know how to distinguish cold drawn wire and annealed wire. In view of this situation, Yanxin forest area small editor summarizes the understanding of cold drawing and annealed wire for many years. Through the way of comparison, the difference between cold drawing and annealed wire is briefly introduced to you.
Cold drawing is widely used in building materials, and its testing standards are different. The strength of cold drawn wire is high, and it can be used in many aspects, much of which is prestressed steel. Do not ask for plasticity, only for strength occasions, you can use such steel. Cold drawing is a kind of metal cold working. The raw material is wire rod, which is what we often call steel bar. Products produced through a series of processes such as shelling. It's the common wire. For ordinary round steel, if it is forced to pull through a hole a little smaller than its diameter, the diameter of the round steel will be smaller and the length will be longer. If the processing process is repeated continuously, the round steel will be further smaller. After this kind of plastic deformation, the hardness of steel will increase and the plasticity will disappear.
Annealed wire has good elasticity and flexibility. It can control its hardness and softness during annealing. It is made of high-quality iron wire, mainly used as binding wire and binding wire in construction industry. It is softer and more flexible than ordinary black iron wire, with uniform softness and consistent color. Annealed wire is a kind of soft iron wire product made of low carbon steel by cold drawing, heating, constant temperature, heat preservation and other processes. Iron wire has different uses and components. It contains iron, cobalt, nickel, copper, carbon, zinc and other elements. The hot metal billet is rolled into 6.5mm thick steel bar, i.e. wire rod, which is then put into the wire drawing device to draw lines of different diameters, and the hole diameter of the wire drawing plate is gradually reduced, and various specifications of wire are made by processing technologies such as cooling, annealing, coating, etc.
