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我厂生产的弧形闸门是国家重点工程太平湾水电工程的急需产品。弧门铰轴直径φ577.539mm,园锥半角8°39′3″,510mm的长锥面,设计要求表面粗糙度达到0=(?),由于其直径大、锥面面积大,在磨床上磨不了,因而只有在C5225立式车床上精车加工。由于铰轴材质硬度不均,且在锥面上时常存在着局部小砂眼,切削时刀刃很快磨钝,因此,精车后表面粗糙度达不到0=(?)要求。
The arc gate produced by our factory is a much needed product of the national key project Taiping Bay Hydropower Project. Arc door hinge shaft diameter φ577.539mm, cone angle 8 ° 39’3 ", 510mm long conical surface, the design requirements of the surface roughness of 0 = (?), Due to its large diameter, the cone area, on the grinder Can not grind, so only in the C5225 vertical lathe finishing .Because the hinge shaft material hardness is not uniform, and there is often in the cone surface of the small trachoma, the cutting blade quickly dull, so fine car rear surface roughness Degree up to 0 = (?) Requirement.