Titanium alloy rod hot extrusion is the extrusion of powder under the condition of increasing the temperature, so that the product is 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 forms of the sheathed hot extrusion method and the non-encapsulated hot extrusion method.
For the active metal titanium and titanium alloy powder, in order to prevent the product from oxidizing, the sheath hot extrusion method is often used. At this time, the package is prepared first, and the powder or compact must be packed in the package. After pre-pumping and sealing, it is placed in an extruder for hot extrusion.
The sheathing material used at this time should have good thermoplasticity, do not form a full gold with the discharge material, be easy to peel off after hot extrusion, convenient sources, and low cost. The most commonly used are low carbon steel or stainless steel sheet.
The first process of hot extrusion of titanium alloy rods is to combine forming, sintering and hot working 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 compact is hot-extruded (for Ti-32Mo alloy, the temperature is 1000-1100 ° C) to obtain the properties of the titanium alloy product. Effect of squeeze ratio on the properties of titanium. As can be seen from the table, titanium materials with a theoretical density of 98.6% -99.1% can be obtained.
The third process of titanium alloy rod is the process of filling blank extrusion, which is an important method that can be used to make complex section products. The process includes: preparing a covering cavity, and determining the cavity size according to the required final product size plus the extrusion coefficient; The powder is filled into the cavity and shaken by vibration; the envelope is evacuated, vented, and sealed; extrusion is performed at a certain temperature and extrusion ratio; and the envelope is peeled.
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For the active metal titanium and titanium alloy powder, in order to prevent the product from oxidizing, the sheath hot extrusion method is often used. At this time, the package is prepared first, and the powder or compact must be packed in the package. After pre-pumping and sealing, it is placed in an extruder for hot extrusion.
The sheathing material used at this time should have good thermoplasticity, do not form a full gold with the discharge material, be easy to peel off after hot extrusion, convenient sources, and low cost. The most commonly used are low carbon steel or stainless steel sheet.
The first process of hot extrusion of titanium alloy rods is to combine forming, sintering and hot working 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 compact is hot-extruded (for Ti-32Mo alloy, the temperature is 1000-1100 ° C) to obtain the properties of the titanium alloy product. Effect of squeeze ratio on the properties of titanium. As can be seen from the table, titanium materials with a theoretical density of 98.6% -99.1% can be obtained.
The third process of titanium alloy rod is the process of filling blank extrusion, which is an important method that can be used to make complex section products. The process includes: preparing a covering cavity, and determining the cavity size according to the required final product size plus the extrusion coefficient; The powder is filled into the cavity and shaken by vibration; the envelope is evacuated, vented, and sealed; extrusion is performed at a certain temperature and extrusion ratio; and the envelope is peeled.
astm b348 titanium rod titanium bicycle pipe astm b348 titanium bar titanium tube grade 9
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