What are the common faults of gear pumps? How to solve?

The gear pump industry has great potential for development. When the uniform wear and scratches of the inner hole and outer circle of the shaft sleeve of the gear pump, as well as the shaft and pump housing of the gear pump, are between 0.02-0.20mm, it is advisable to use an arc spraying repair process that has strong adhesion with the parts and good performance. The process of arc spraying: working surface pretreatment→ Preheating→ Spray bonding bottom layer→ Spray coating working layer→ Cooling→ Coating processing.