Black annealed wire is often used for bundling purposes, such as baling scrap and tying rebar. Because it is very flexible and does not corrode easily, it becomes ideal for the construction, agricultural, and recycling industries. Wanzhi Steel produces this wire and offers it in different sizes. Our factory has two production lines for producing black annealed wire. We are fully capable of meeting the needs of our customers with large orders. Next, Wanzhi Steel will take you through the manufacturing process of annealed wire.

 How Is Annealed Wire Made?

Here is the manufacturing process of annealed wire for your reference.

1. First, the drawn mild steel wire is placed in an annealing tank or annealing furnace;

2. Then it is heated to the right temperature and slowly cooled;

3. Finally, oil is applied to prevent rusting and to facilitate distribution through the machine.

Note: In the production process of annealed iron wire, the annealing process is very important. This step will affect the quality, strength, softness, and hardness of the finished wire. So how to anneal the wire properly? Wanzhi Steel will tell you the answer.

1. Determine A Reasonable Annealing Temperature

When the annealing process is carried out, the annealing temperature should be determined between 800~850℃. If the wire before cold-drawing uniform organization, fine grain, can be used 600 ~ 700 ℃ recrystallization annealing. For coarse diameter wire, commonly used sub-temperature annealing (Ac1 ~ AC3 between the temperature) to eliminate process hardening, and refine the uniform organization.

2. Determining the Holding Time

The wire material moves from 750 to 800°C after entering the annealing furnace. The time of movement is the holding time. The annealing temperature of the nickel-aluminum composite wire can be controlled by setting the temperature at the temperature measurement point of the annealing furnace. In general, the temperature is set at 810°C, and the holding time is 8 hours. Then after a period of air-cooling and the application of lubricant, the wire can be coiled smoothly. After this treatment, the cold-drawn wire is moderately soft and hard, without bending and twisting.

Why Use Black Annealed Wire?

The reason why more and more people are willing to use annealed wire is that this metal wire provides satisfactory tensile strength and flexibility. One of its most common uses is as baling wire, for example, for tying hay. In this application, the flexibility and ductility of the wire are very high and annealed wire is perfectly suited to meet these requirements. It can be adapted to many forms to bind items without breaking them. In addition, this wire tends to be less expensive. Compared to galvanized wire, it has a much cheaper price. This is one reason why the annealed wire is used.

Conclusion

Black annealed wire plays a key role in many industrial applications. If you want a wire with flexibility and durability, Wanzhi Steel is your first choice. We have been in the steel industry for decades, with our mills and a complete service system. We can supply wire in a variety of sizes, coil break ranges, and tensile strengths. In addition, our experienced sales managers can assist in selecting the right product for your needs. If you’re thinking of making a purchase, feel free to contact us for more details!