本发明提供一种适用于钻杆料的钛合金无缝管的生产方法，该钛合金无缝管的制造方法步骤包括：该钻杆料配制；海绵钛真空炉熔炼，浇铸成方坯，方坯经6?8次锻造、加工后制成圆坯，圆坯在环形炉中采用分段加热，随后加热到相变点以下30?50℃并保温240?360min以达到均温，出炉前温度快速升至1000～1080℃，保温1h后出炉，随后进行低速率穿孔，然后经过连轧、再加热、定径后为性能优良、尺寸精度极高的钻杆料。本发明效果是该方法使成品钻杆材料可服役环境大大延伸。冲击韧性可以达到36J(0℃, VL, 10*5mm)，锻造后显微组织晶粒度达到8级，成品管尺寸精度可以达到：外径偏差±0.5％、壁厚偏差±10％和成材率提高10％以上。

 The invention provides a production method for a titanium alloy seamless tube serving as a drill pipe material. The manufacturing method of the titanium alloy seamless tube comprises the steps that the drill pipe material is prepared; sponge titanium is melted in a vacuum furnace and cast into a square blank, the square blank is forged 6-8 times and machined to be manufactured into a round blank, the round blank is stepwise heated in an annular furnace and then heated to 30 DEG C-50 DEG C below a phase transformation point, heat preservation is conducted for 240-360 min to achieve the uniform temperature, the temperature is quickly increased to 1,000 DEG C to 1,080 DEG C before the round blank is taken out of the furnace, heat preservation is conducted for 1 h, and then the round blank is taken out of the furnace; low-speed punching is conducted, and after continuous rolling, reheating and sizing are conducted, the drill pipe material with the excellent properties and extremely high size precision is obtained. The production method has the advantages that the service environment of the finished drill pipe material product is greatly extended, the impact toughness can reach 36 J (0 DEG C, VL, 10*5 mm), the microstructure grain size reaches the eight grade after forging is conducted, and the size precision of the finished tube product can reach the level that the outside diameter tolerance is +/-0.5%, the wall thickness tolerance is +/-10%, and the tube yield is increased by 10% or above.