Babbitt is the most well-known bearing materials, invented by the Americans named Babbitt, its white, also known as white alloy, and their use can be traced back to industrial revolution. A reduction of Xiji Ba ...

In electroless nickel plating before the metal surface pre-treatment include: polishing, degreasing, rust removal, activation and other processes commonly used in electroless nickel plating metal plating pre-treatment methods and the like. Grinding, polishing, and other ...

Micro silica is silicon alloy and silicon smelting generated when SiO2 and Si gas and oxygen in the air and condensation to form the rapid oxidation of a fine silica powder. First, micro-physical and chemical ...