Thread Content
During operation, large-tonnage hydraulic cylinders often experience failures due to seal wear, cylinder barrel wear, internal wall scratches, internal wall corrosion, and scratches on the piston or piston rod. The sealing performance of the plunger cylinder, which is one of the actuating elements in hydraulic equipment, directly affects the performance of the equipment. Especially in the case of larger hydraulic cylinders, it is difficult and costly to repair or replace their sealing components once they become damaged. Traditional repair methods involve removing the damaged components and having them repaired by external parties, or applying brush plating and performing overall surface grinding; however, these methods take a long time and are costly. To address the aforementioned issues, the most modern repair method today involves the use of polymer composite materials; among the most widely used approaches is that developed by Megahwa Applied Technologies in the United States, which enables the restoration of scratches on-site. Its material boasts excellent adhesion and good compressive strength, which not only meet the production and usage requirements under the aforementioned operating conditions, but also feature a simple and easy-to-follow processing technique; there is no thermal impact, and the coating thickness is not limited. At the same time, the coating’s excellent oil and corrosion resistance, along with its self-lubricating properties, ensure good wear resistance after repair, thus maintaining normal production operations in enterprises and preventing further damage to equipment components.