本发明涉及一种钛及钛合金扁锭电子束表面熔整装置及工艺，属于铸锭生产技术领域。该装置包括括炉体、抽真空系统、铸锭传送系统和电子枪系统等结构。本发明采用高能电子束扫描钛或者钛合金扁锭表面，使其快速熔化形成熔池，在重力的作用下自行形成水平面后凝固，达到消除铸锭表面缺陷并实现平整的目的，提高了钛及钛合金扁锭的成材率。本发明对具有缩颈、裂纹、裂口、豁口等缺陷程度较大的铸锭，通过高能电子束将补充的物料与铸锭熔化为一体，避免了现有技术中对整块铸锭进行锯切分割和深度修磨，保证了铸锭的整体性。

The invention relates to an electron beam surface melting device and a process for a titanium and titanium alloy flat ingots, and belongs to the technical field of ingot making production. The devicecomprises a furnace body, a vacuumizing system, an ingot making conveying system, an electron gun system and the like. According to the device, the surface of the titanium or titanium alloy flat ingotis scanned by a high-energy electron beam, so that the surface of the titanium or titanium alloy flat ingot is rapidly melted to form a molten pool, and a horizontal plane is automatically formed under the action of gravity and then solidified, so that the aim of eliminating surface defects of the ingot and realizing flattening is achieved, and the yield of the titanium and titanium alloy flat ingot is improved. According to the device, for cast ingots with larger defects such as neck shrinkage, cracks, cracks, gouges and the like, the supplemented materials and the cast ingots are melted into a whole through high-energy electron beams, so that sawing and cutting and deep grinding of the whole cast ingots in the prior art are avoided, and the integrity of the cast ingots is guaranteed.