Tooth Point Forging Bucket Teeth 1U3352RC Earth Moving Machinery Spare Parts

The process flow of bucket tooth painting - surface pretreatment

The mechanism of oil removal and cleaning ‌ : When chlorinated solvents such as trichloroethylene are used, the mechanism by which they dissolve oil is to destroy the molecular structure of oil stains through intermolecular forces. Flame spraying (at a temperature of approximately 800℃) can completely oxidize hydrocarbons to CO₂ and H₂O, and the residual ash should be removed with a copper brush.

Mechanical grinding process parameters ‌ : for turning threads, it is recommended to use a cutting depth of 0.3mm on one side, a pitch of 1.5-2mm, and a thread Angle of 60°. Experiments show that this parameter can increase the adhesion of the coating to more than 15MPa (ASTM D4541 standard).

Surface roughness control ‌ : Sandblasting treatment should reach Sa2.5 grade (ISO 8501-1), and the roughness Ra value should be controlled at 30-50μm. If it is too high, it will cause uneven paint film thickness; if it is too low, it will reduce adhesion.