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If you want to make good use of anchor bolts, then we must first learn about the maintenance of anchor bolts. Friends who are not very knowledgeable about anchor bolt maintenance can come with me to understand it!
Anchor bolts must first be stored in a constant temperature environment and not in a humid environment for too long. If the environment is particularly humid, the appearance of the anchor bolts will oxidize to some extent. In order to prevent oxidation of the anchor bolts, The anchor bolts should be placed in a dry and ventilated environment. The anchor bolt also has a special place to protect, which is the thread of the anchor bolt. The thread of the anchor bolt must be specially protected. We can rub the thread of the anchor bolt with butter or use some oily paper. Wrapping is to prevent wear on the anchor bolt threads or breakage of the anchor bolt threads. In this case, the nut or nut cannot be tightened well or cannot be screwed in during installation.
The corrosion of anchor bolts is mainly because during the pickling and passivation treatment, it penetrates into the anchor bolt holes and remains, forming an aggressive environment, and the pickling solution corrodes the bolts. The gap between the outer surface of the bolt and the inner and outer surface of the foundation screw hole is about 1mm and the gap between the bolt and the concrete is smaller. As the bolt corrodes in the residual liquid, the gap corrodes the product collection, and it is easy to form a gap environment.