Thermal spraying protection method for groove-shaped part with blade

The invention belongs to the technical field of thermal spraying protection, and particularly relates to a thermal spraying protection method for a groove-shaped part with a blade. Aiming at the problem that effective thermal spraying protection on a blade and a blade interval area is difficult to realize by adopting a single protection method for the groove-shaped part with the blade, soft and hard composite thermal spraying protection is realized by accurately controlling a soft protection area and lap joint and fixation of soft protection and hard protection. The method is easy and convenient to implement, the problem that thermal spraying protection of the groove-shaped part with the blade is difficult is effectively solved, blade damage or deformation or blade coating deposition and fumigation splashing caused by improper protection can be effectively avoided, and the good protection effect in the spraying process of the groove-shaped part with the blade is achieved. 本发明属于热喷涂防护技术领域，尤其涉及一种带叶片的槽形零件热喷涂防护方法；