Common faults and solutions of electric power fittings forgings

There may be various faults in the operation of power fixture forging, which will not only affect the normal operation of the power system, but also cause safety problems. The following are some common power fittings forging failures and corresponding solutions.

1. Wear and Tear
   Failure phenomenon: Under the long-term action of the external environment (such as wind), friction occurs between the contact surfaces, resulting in the material gradually reducing to the load borne by more than its damage load, resulting in fracture failure.
   Solution: Carry out regular inspection, and replace or reinforce the wear in time. Choose the better wear resistance of the hardware material, improve the wear resistance of the hardware.
   Two, freezing crack
   Failure phenomenon: under low temperature weather conditions, the water in the gap will cause the volume to increase, and the lower part of the hardware will be enlarged. When the external temperature rises, the ice will melt into water into the lower part of the space that is enlarged. When the water refreezes, the volume of the hardware will increase. After several cycles, coupled with the brittleness of the hardware material itself, the lower part of the hardware will fail due to freezing and cracking.
   Solution: Drainage design for the fittings to prevent water accumulation. At the same time, the use of low temperature resistant materials or low temperature treatment of the hardware to improve its freezing cracking resistance.
   Corrosion and rust
   Fault phenomenon: the surface contact galvanic corrosion between the power fixture and the fixed transmission wire and the resulting corrosion gap caused by spark burning and overheating problems; Corrosion is the failure problem caused by slow oxidation of the surface of the hardware when the service life reaches a certain number of years under normal working environment.
   Solution: Regular anti-corrosion coating treatment to improve the corrosion resistance of the hardware. For corrosion-prone areas, cathodic protection measures of impressed current or sacrificial anode can be taken to slow down the corrosion rate of the fittings.
2. Cracking
   Fault phenomenon: Due to the design, manufacturing, installation problems caused by cracks in the running time is not long.
   Solution: Strengthen the quality control of the hardware materials to ensure that the materials have no defects. Optimize the design and manufacturing process of the fittings to improve their mechanical strength and toughness. Regular non-destructive testing, timely detection and treatment of cracks.
3. Connection failure
   Fault phenomenon: The connection between the hardware and the wire or other equipment is loose or falls off, resulting in power transmission interruption or safety accidents.
   Solution: Check and tighten the connection parts regularly to ensure that the connection is firm and reliable. Use anti-loose measures, such as installing anti-loose washers, applying anti-loose paint, etc. For critical connection parts, more reliable connection methods such as welding or mechanical locking can be used.
   In addition to the above common faults, they also include failures caused by problems such as improper installation and excessive vibration. In view of these failures, inspection and maintenance should be strengthened to find and deal with the problem in time to ensure the normal operation of power fittings forgings. At the same time, strengthening the research and innovation of metalworking materials and processes, improving the performance and quality of power metalworking forgings, is also an important way to reduce failures.