Wednesday, November 16, 2022

Comparison of Three Processes for Hot Extrusion of Titanium Alloy Rods

Grade 2 Titanium Round Bar hot extrusion is to extrude the powder under the condition of increasing temperature so that the product can be fully densified. The hot extrusion method can accurately control the composition of the material and the internal structure of the alloy. The hot extrusion method can be divided into two types: the sheathed hot extrusion method and the non-sheathed hot extrusion method.

For active metal titanium and titanium alloy powder, in order to prevent product oxidation, the hot extrusion method is often used. At this time, the sheath is made first, and the powder or compact is packed in the sheath. After pre-drawing and sealing, it is placed in an extruder for hot extrusion.

The wrapping material used at this time should have good thermoplasticity, not form a solid metal with the material, be easy to peel off after hot extrusion, convenient source, and be low cost. Low-carbon steel or stainless steel sheets are mostly used.

6al4v titanium alloy bar hot extrusion is a process that combines forming, sintering, and thermal processing, so as to directly obtain diamond products with better mechanical properties.

The second process is to shape titanium and titanium alloy powder. After sintering, the prepared sintered billet is hot-extruded (for Ti-32Mo alloy, the temperature is 1000-1100° C.), and the properties of the obtained titanium alloy product are obtained. The effect of extrusion ratio on the properties of titanium materials.

The third process of titanium alloy rods is the process of filling billet extrusion, which is an important method that can be used to make complex cross-section products. The process includes: preparing the casing cavity, and determining the size of the cavity according to the required product size plus extrusion coefficient; Putting the powder into the cavity and vibrating; evacuating, exhausting, and sealing the sheath; extruding at a certain temperature and extrusion ratio; peel off the sheath.

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