Tantalum tungsten alloy is currently commonly used grades Ta10W and Ta2.5W. Tantalum tungsten alloy is a kind of high density material, which has the characteristics of high melting point, high tensile strength, good dynamic ductility and corrosion resistance. Tantalum tungsten alloy is used to make heating parts, heat insulation parts and charging vessels for vacuum blast furnace. Used in chemical anti-corrosion industry, the production of composite plates to manufacture anti-corrosion containers, reactors, distillation towers, ships anti-corrosion.
Tantalum tungsten alloy production process is as follows:
1.Mixing powder
The ultrafine tantalum powder and tungsten powder are weighed and mixed according to the required ratio, and the mixed powder is placed in the drum mixer to mix evenly to obtain the mixed powder;
2.Press molding
Load the fine powder into the grinding tool and press forming:;
3.Sintering
The alloy bar was put into the vacuum sintering furnace, and the rough ingot was obtained by vacuum heating and sintering.
4.Smelting
Alloy ingot is made by vacuum electron beam furnace or vacuum electric arc furnace.
5.Improved performance of finished ingot
Put the alloy ingot into the high frequency furnace, after heating, forging many times, processing the surface oxide skin to get the finished ingot. According to the size and weight of the profile, blanking, forging and opening; After many times rolling or forging, after many times vacuum annealing to get rod or plate, after machining, grinding to get good performance of tantalum tungsten alloy finished rod.
