| 摘要 |
PURPOSE: A method for manufacturing a cable grand for a flameproof wire pipe is provide to implement light cable grand by manufacturing components made of aluminum alloy. CONSTITUTION: Components(202,208) of a cable grand(200) is made by extruding and cutting an aluminum alloy material. A foreign material of surfaces of components is removed by the acid cleaning. A temperature of the electrolyte for the surface process of components is maintained between 4 and 5 degrees below zero by a freezer. The electrolyte includes the water and the organic acid with a ratio of 6:4. The components are anodized in the electrolyte for 60 to 80 minutes under the voltage of 50 to 60 V and the current of 2000A. The components are washed, dried, and assembled with the packing. |
