The film weight of phosphating film is an important index of manganese phosphating coated steel wire rope, which has a decisive influence on the wear resistance and corrosion resistance of steel wire rope. GB/T9792-2003 determination of film forming quality per unit area of chemical conversion film on metal surface. Clean the strand crack of steel wire rope with organic solvent and air dry. Pay attention to the fact that organic substances are inflammable and explosive dangerous goods, and the operation must be standardized to prevent fire accidents, and then determine the weight of phosphating film according to this national standard. According to the patent specification of phosphating coated wire rope, the weight of phosphating film is 3-60 g/m2, and the specific parameters can be according to the wire rope purchase contract, such as 15-30 g/m2, for larger phosphating film.
Beakers, electronic balances and medicines are needed. Measuring the diameter of steel wire rope requires a digital wide-mouth vernier, and measuring the diameter of steel wire requires a digital micrometer.
When purchasing manganese phosphating coated steel wire rope, the weight range and type of phosphating film (manganese or zinc-manganese series) should be indicated in the contract or invoice to protect their legitimate rights and interests. for reference only