Description

Used for motorcycle front shock absorber, draw the materials from ¢ *1mm, wall thickness of 3.5mm *5 # precision steel, the length of the finished product is **9.5mm after several processes forming , finally hard chrome plating and polishing on the surface. (With some technical requirements)
Technical Requirements:
1) Surface treatment: MFiCr above *5μ,saline test after *8 hours, the corrosion area must be determined more than seven (according to the provisions of KES D***3)
2) Burrs must be completely removed after machining, anti-rust treatment must be done before plating
3) The material tensile strength: *3Kgf/mm2,downtube annealing hardness HRC*3 ~ *7
4) The dimension of the ¢ *1 before plating is ¢ *1 *0.**5 *0.**0 (reference value)
5) The end part of the burr must be removed, ¢ *1 parts mustnt have the wounded or dents which affect the function.