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修改這篇文章 : Causes of corrosion of anchor bolts

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Anchor bolts are mainly used for fixed installation of equipment. It plays a big role in the installation of the equipment. The following are the reasons for the corrosion of the anchor bolts and the solutions to the installation problems. I hope it will be helpful to everyone. Causes of anchor bolt corrosion 　　1, Environmental reasons. For example, in a humid environment, bolts made of carbon steel will be corroded. 　　2, the reason for the medium. Although some anchor bolts are not in direct contact with the medium, for various reasons, corrosive media are likely to be transferred to the anchor bolts, causing the anchor bolts to corrode. 　　3, The reason of bolt material. In the design, although the anchor bolts are selected according to regulations, they often only consider the strength of the bolts and do not consider that under special conditions, the anchor bolts will be corroded during use, so no corrosion-resistant materials such as stainless steel are used Solutions for installing anchor bolts 　　1.Exclusion of deviation of anchor bolts 　　Handling of center distance deviation. When the deviation of the center distance of the anchor bolt exceeds the allowable value, first remove the concrete around the thread with a chisel, and the depth of the removal is 8 to 15 times the diameter of the anchor bolt. At about 850 ° C, use a sledgehammer and jack for calibration. After the requirements are met, the steel plate is welded at the bend to prevent the bolts from being straightened after being stressed. Finally, fill the concrete. 　　2. Handling of elevation deviation 　　The positive deviation of the elevation of the anchor bolt exceeds the allowable range. A part of it should be cut and the thread reprocessed. If the negative deviation of the anchor bolt elevation does not exceed 15mm, first cut a part of the concrete, and then use an oxyacetylene flame to bake the outer part of the anchor bolt thread and stretch it red. Reinforced steel or thin tubes. If the negative deviation exceeds 15mm, the anchor bolt should be cut off, and a new bolt should be re-welded, and then 4 reinforcing steel bars should be welded in the butt welding, and the concrete should be poured again after processing. 　　3. Handling of anchor bolts 　　When tightening the anchor bolts, the bolts were pulled out of the equipment foundation due to excessive force, making the equipment installation impossible. At this time, the concrete in the middle of the bolt needs to be chiseled out, then two crossed U-shaped steel bars are welded, and the concrete is refilled to fix the bolt again. 　　The above is the cause of the corrosion of the anchor bolt and the solution to the installation problem. I hope that everyone will understand the cause of the corrosion of the anchor bolt and the solution to the installation problem, and it will be helpful to everyone. https://www.starwdh.com/

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