Al-Mo-W-Ti quaternary alloy, the raw material of titanium alloy production, has a composition mass percentage of W 10 ~ 15%, Mo 20 ~ 30%, Al 45 ~ 60%, Ti 5%-15%, and the residual is unavoidable impurities. The Al-Mo-W-Ti quaternary alloy of the invention can solve the inclusion and component segregation of W and Mo alloys with high melting point in BT25 titanium alloy, and effectively avoid the problem of part failure caused by metal inclusion in BT25 titanium alloy.
Titanium alloy is a new type of metal material, containing more than 85% ~ 90% titanium, the rest is aluminum, molybdenum, vanadium, silicon, zirconium, iron, Sn and other alloying elements, it has a light specific gravity (about 4.5g/cm2, Steel is 7.8g/cm2), corrosion resistance, high use temperature (currently up to 700℃), high strength, good plasticity and many other advantages, widely used in aviation, aerospace, Marine, construction, automobiles, golf ball and other important components, high-grade civilian products.
The basic production process of titanium alloy is as follows: (1) Titanium electrode preparation: The alloy raw materials (aluminum, molybdenum, Vanadium, Silicon, Zirconium, Iron, Tin, tungsten and other units or binary alloys), in a certain form, a certain proportion and titanium sponge (alloy raw materials) mixed evenly (to ensure the uniform composition of the titanium electrode), according to a certain method pressed into the required titanium electrode shape. (2) Melting: Titanium alloy is generally vacuum consumable melting (advanced countries abroad also use electron beam or plasma cold bed melting method), several times vacuum consumable into φ580 or above finished ingot. (3) Material: free forging of finished ingot (forging into large bars or billets on the forging press first for the next step of forging or rolling.) After that, the pressure processing method of rolling (the large bar is further rolled into a small bar, generally referring to the finished bar below φ100mm) or die forging (the bar or square billet is forged into a die forging) is used to produce the finished titanium alloy.
