Titanium wire, from delicate medical treatment to the vast space, from petrochemical industry to daily sports and leisure, all shows its unique charm. Especially now with the rise of 3D printing technology. What is particularly eye-catching is that more than 60% of titanium and
Titanium Alloy wires are used as welding wires, which are like a link connecting the industrial world and carry the mission of sturdiness and reliability.
Today we mainly talk about the production and manufacturing of titanium wire, referring to φ2.6mm titanium wire. Titanium wire production process: titanium ingot---opening 150---sawing--rolling round bar (φ80mm)---removal of black skin (skin peeling)---rolling φ10mm disc---removal of black skin---inspection and grinding---multi-stage wire drawing (11 stretches)---final annealing---finished product (φ2.6mm)---closing.
The main process used for titanium wire: wire drawing. Wire drawing (fixed die drawing) refers to a processing method in which the wire passes through the die hole and undergoes plastic deformation under a certain tension, causing the cross section to decrease and the length to increase. Under the action of the 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.
Wire drawing (fixed die drawing) methods are divided into two types:
Hot drawing. Drawing above the recrystallization temperature is hot drawing.
Cold drawing, drawing at room temperature is cold drawing.
Today we mainly use heat drawing as the main process to explain. The main process factors that affect hot drawing: temperature, mold, lubricant, speed, etc. all have an impact on normal stretching.
Temperature: During hot drawing, the titanium wire must be heated before entering the die hole, mainly using an electric furnace. If the temperature is too high, the heat generated by stretching the metal wire will not be easily taken away, which will increase the temperature of the metal wire and the mold. The wire will be easily oxidized and discolored, reducing the service life of the mold. If the temperature is too low, the viscosity will increase, which is not conducive to stretching, so the appropriate temperature must be used when drawing the wire.
Mold: It is the most important tool in the wire drawing process. The main material of the drawing mold is YG8. The drawing die is generally composed of four areas: the lubrication area, the working area, the sizing area, and the exit area, which are smoothly connected to each other.
Lubricant: mainly pure oil, emulsion, ointment, etc. The selection of lubricant is mainly based on many factors such as raw material material, mold, surface quality and downstream applications. According to our experience, the best titanium wire is graphite emulsion.
Drawing speed: should be adjusted according to titanium wire diameter, material properties and mold design to prevent wire breakage.
There are four main quality control methods for titanium wire drawn plates:
1. Use a micrometer with an accuracy of 0.001 to measure the diameter.
2. Visually inspect the surface of the wire to see if there are burrs, cracks, scratches, oxidation, etc.
3. Use a thermometer to measure the temperature of the electric furnace to ensure that the temperature meets the process requirements.
4. Strictly use molds and mold repair records to ensure that the appropriate mold is suitable for each stretch.
Post-processing of titanium wire. To meet specific application requirements, titanium wire may require surface treatments such as pickling, polishing or coating.
The production of titanium wire drawn plates includes raw material preparation, pretreatment, multiple drawings, lubrication and cooling, quality control, and final annealing and winding. These steps are interlocking and together determine the final quality of the titanium wire. In short, strengthen equipment maintenance, optimize process parameters, strengthen technical training and quality management. Only with comprehensive measures can we better ensure high-quality titanium wire, meet market demand, and improve corporate competitiveness.
