Coal mine machinery repair by brush platingI. Coal shearer, roadheader repairWe can repair the wear of the bearing on the rocker arm of the coal mining machine on site, as well as the scratches, wear and chrome plating on the hydraulic piston rod of the roadheader.II. Repair of hydraulic prop/bracketThe hydraulic prop is an important coal mine underground equipment, which directly affects the safe production of the coal mine. The working environment of the hydraulic prop is harsh, and corrosion and chrome layer peeling often occur, requi

The correct way to repair the chrome-plated surface of the hydraulic cylinderCommon forms of damage to hydraulic lever piston rods include: chrome plating peeling off, scratches, wear, and bumps. In this case, there are generally three options: 1. Return to the factory for electroplating. 2. Brush plating 3. Replace the cylinder. If you leave it alone , The slightest is pressure leakage and oil leakage, and the severest is causing a safety accident.However, some use electric welding to repair, in fact, argon arc welding is a wild way, it is difficult to repair, and even

Causes of metal hydrogen embrittlement and methods to remove hydrogen embrittlementIn any electroplating solution, due to the dissociation of water molecules, there is always a certain amount of hydrogen ions present. Therefore, during the electroplating process, while the metal is precipitated at the cathode (the main reaction), it is accompanied by the hydrogen gas evolution (side reaction). The impact of hydrogen evolution is manifold, the most important of which is hydrogen embrittlement. Hydrogen embrittlement is one of the most serious quality hazards in surface treatmen…

Molds repair by brush platingMolds play an extremely important role in the national economy. At present, my country's mold technology cannot fully meet the needs of modern industrial development, and its level is nearly 20 years behind that of developed countries. The main problem is that the manufacturing cycle is long, the life is short, and the precision is low. The production can only meet about half of the demand, so the current urgent problem is to improve the life of the mold. The easiest, most economical and mos