Hydraulic joints are the parts in the hydraulic system that connect the high-pressure oil pipes and the high-pressure oil pipes. There are many kinds of hydraulic pipe joints. The road is removed for cleaning, and the cleaning methods are mainly kerosene cleaning and pickling. Today I want to introduce to you the precautions in the pickling process.
1. The welding slag, spatter and varnish on the pipe should be removed before pickling.
2. Do not damage the threads, pipelines and sealing surfaces during disassembly, transportation and pickling. Use tape or plastic pipes to seal the openings.
3. Each threaded part should be protected by acid-resistant materials such as plastic belts and rubber belts, or apply dry oil to the threads after degreasing and washing, and then remove rust in acid solution to prevent acid erosion.
4. When pickling, pay attention to the marking of the tube, do not disappear or blur the matching mark of the tube.
5. The welding operation of the pipe before pickling has been completed.
In addition to paying attention to the pickling process, it also needs to be maintained in daily life.