本发明提供一种空心锭的铸锭端面2枪电子束扫描花样的设置办法，通过安装电子束专用水冷同轴铜坩埚，设置2把电子束的扫描轨迹，设置2把电子束扫描时间间隔，将电子枪的扫描轨迹进行预加载，对实际扫描位置进行纠偏，即完成电子束扫描花样的设置。本发明采用直接浇铸出来的空心锭进行穿管轧制，可避免了打孔、锻造等工序，同时采用电子束冷床炉进行浇铸，可使空心铸锭的长度≧8000mm，铸锭的内开孔量可以调节，铸锭的重量及长度可根据需求进行调节，极大满足无缝管制备要求，使得铸锭的综合成材率提高约40%。

The invention provides a setting method for a two-gun electron beam scanning pattern on the cast ingot end face of a hollow ingot. According to the setting method, a water-cooled coaxial copper crucible special for electron beams is mounted, the scanning track of two electron beams is set, the scanning time interval of the two electron beams is set, the scanning track of an electronic gun is preloaded, deviation of an actual scanning position is rectified, and thus the electron beam scanning pattern is set. According to the setting method for the two-gun electron beam scanning pattern on the cast ingot end face of the hollow ingot, pipe-penetration rolling is conducted on the directly-cast hollow ingot, and thus the procedures of punching, forging and the like can be avoided; and meanwhile, an electron beam cold bed furnace is used for casting so that the length of the hollow cast ingot can reach 8000 mm or over, the perforating quantity in the cast ingot can be adjusted, the weight and length of the cast ingot can be adjusted according to requirements, the preparation requirements of seamless pipes are greatly met, and the comprehensive yield of the cast ingot is increased by about 40%.