Protection method for threaded hole of magnesium alloy structural part

The protection method for the threaded hole of the magnesium alloy structural part sequentially comprises the following treatment steps of S1, pretreatment; s2, preheating is conducted; s3, protection is carried out; s4, surface drying; s5, curing is conducted; s6, cooling is conducted; in the step S3, the threaded hole is coated with a protective coating; and the curing in the step S5 is that the magnesium alloy structural part subjected to the surface drying treatment is continuously heated to 120-180 DEG C in a drying box and is kept for 30-60 minutes. The whole process is simple, convenient and high in efficiency, related tools are common tools in daily production, and the process can be adopted for protecting the threaded holes in the magnesium alloy structural parts of various different structures. 提供了一种镁合金结构件螺纹孔的防护方法，依次包括对镁合金结构件螺纹孔进行以下处理步骤：S1、前处理；S2、预热；S3、防护；S4、表干；S5、固化；S6、冷却；步骤S3的防护是采用防护涂料对螺纹孔进行涂覆；所述步骤S5的固化是将在表干处理后的镁合金结构件在干燥箱内继续升温至120～180℃并保持30～60min。整个流程简单方便效率高，涉及的工具也是日常生产中常用的工具，对于各种不同结构的镁合金结构件上螺纹孔的防