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A Brief Discussion on the Manufacturing and Application of Titanium Wire

As an ordinary person, titanium wire is rarely seen. However, what we usually see is iron wire. Iron wire is everywhere in our lives. Titanium wire is used in industry just as iron wire is commonly used in daily life.
Titanium wire is a silver white metal (laboratory) with many excellent properties. The density of titanium is 4.54g/cm3, which is 43% lighter than steel. The mechanical strength is similar to that of steel, but twice as strong as aluminum. Titanium is heat-resistant with a melting point of 1942K, nearly 500K higher than steel.
Titanium wire, from subtle medical applications to vast space, from petrochemicals to daily sports and leisure, showcases its unique charm. Especially with the rise of 3D printing technology. What is particularly noteworthy is that over 60% of titanium and titanium alloy wires are used as welding wires, like a link connecting the industrial sector, carrying a strong and reliable mission.
Today we will mainly talk about the production and manufacturing of titanium wire with a reference diameter of 2.6mm. The production process of titanium wire includes: titanium ingot - cutting 150- sawing - rolling round bar (φ 80mm) - removing black skin (peeling) - rolling φ 10mm disc - removing black skin - checking and grinding - multi-stage drawing (11 stretching) - final annealing - finished product (φ 2.6mm) - closing.
The main process used for titanium wire is wire drawing. Wire drawing (fixed die drawing) refers to a processing method in which wire passes through a mold hole and undergoes plastic deformation under a certain tension, resulting in a reduction in cross-section and an increase in length. Under the action of pulling force, the wire rod or wire blank is slowly pulled out, and after fine carving by the mold, it finally becomes a small section titanium wire.
There are two types of wire drawing (fixed die drawing) methods: hot drawing, and drawing above the recrystallization temperature is hot drawing. Cold drawing refers to the process of drawing at room temperature. Today we will mainly use hot drawing as the main process to explain. The main influencing factors of hot drawing process include temperature, mold, lubricant, speed, etc., which all have an impact on normal stretching.
Temperature: During hot drawing, the titanium wire needs to be heated before entering the mold hole, mainly using an electric furnace for heating. When the temperature is too high, stretching the metal wire makes it difficult for the heat generated to be carried away, causing the temperature of the metal wire and mold to rise. The wire is prone to oxidation and discoloration, reducing the service life of the mold. When the temperature is too low, the viscosity increases, which is not conducive to stretching. Therefore, it is necessary to use an appropriate temperature when pulling the wire.
Mold: It is an important tool in the wire drawing process. The main material of the stretching mold is YG8. The stretching mold generally consists of four areas that are smoothly connected to each other: lubrication area, working area, sizing area, and outlet area.
Lubricants: mainly include pure oil, emulsion, paste, etc. The selection of lubricants is mainly based on a comprehensive consideration of various factors such as raw material materials, molds, surface quality, and downstream applications. Based on our experience, titanium wire * is made of graphite emulsion.
Pulling speed: It should be adjusted according to the diameter of the titanium wire, material characteristics, and mold design to prevent wire breakage.
There are four main quality control methods for titanium wire drawing plates:
1. Use a micrometer with an accuracy of 0.001 to measure the diameter.
2. Visually inspect the surface of the wire for burrs, cracks, scratches, and oxidation
3. Use temperature measurement to measure the temperature of the electric furnace, ensuring that the temperature meets the process requirements.
4. Strictly use molds and repair records to ensure that suitable molds are suitable for each stretch.
Post processing of titanium wire. To meet specific application requirements, titanium wire may require surface treatment such as acid washing, polishing, or coating.
In the production of titanium wire drawing plates, it includes raw material preparation, pretreatment, multiple drawing, lubrication and cooling, quality control, as well as final annealing and winding. These steps are interrelated and together determine the final quality of the titanium wire. In short, strengthen equipment maintenance, optimize process parameters, enhance technical training, and quality management. Only under the measures of * can we better ensure high-quality titanium wire, meet market demand, and enhance the competitiveness of enterprises.

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