Process |
Equipment |
Precision Degree |
Machining range |
Blank Making |
Resin bonded sand production line;Vertical parting flaskless molding line,146 opening production line;Electric furnace; Furnace cupola; Guillotine shear,Punching machine; Forge rolling machine; Precision die forging machine; |
precision cast; precision forging; precision molding |
All sorts of casting and forging parts |
Heat Treatment |
Vertical furnace; Speckled furnace;High frequency quenching furnace |
Material hardness transformation≤HRC1 |
Hardening and Tempering; Quenching; High frequency quenching; Carburizing and quenching |
Machining |
Precise NC machine |
Dimesion tolerance 6 degree; Roughness Ra0.8; Roundness,straightness and concentricity accuracy≤0.01mm |
inner hole≥5mm, outside diameter ≤800mm |
Grinding machining |
NC excircle grinding machine; Surface grinding machine |
Dimesion precision 5 degree; Roughness Ra0.4 |
Outside diameter 3mm to 320mm |
Teeth-profile Making |
NC gear hobbing maching; gear slotting machine |
Roughness Ra1.6; Concentricity 0.05 |
Maximum module M=10, OD≤1800mm |
Hobbing and drilling |
CNC machine;drilling machine;NC milling machine |
Hole dimesion tolerance 6 degree; positioning accuracy 0.05 |
Workbench leghth 1650mm; width 852mm; minimum diameter 1mm |
Other Machining |
Hydraulic broaching machine; sawing machine; punching machine; lather labeling machine |
keyway tolerance 7 degree; symmetry degree 0.05 |
spline; straight keyway; spline keyway |
Surface Treatment |
polishing machine; plating production line; spray-painting line;coating line;oxidizing line; phosphating line |
In accordance with European standard RoHS. |
Surface polishing; Cr6+free zinc plating,Nickle hard chromium; Decorative chrome plating;Nickle;Paiting; phosphating; Anodizing;blackening;Dacrotized |