Hollow part electroforming furrow filling method

The filling method of the groove during the electroforming of the hollow part belongs to the domain of the electroform process. The filling of the grove is performed twice layers respectively: the first layer chooses the diffluent plastic to be the bottom layer (3); the second layer adopts the homogeneity plastic mixing with the certain percent of the metal powder, the layer is served as the electric layer (4), it has the good capability of conducting and engine machining. If the hole passing the liquid used for washing is obligated on the bottom of the first material, the filling material after the electroforming can be dissolved to wipe off better. The invention is fit for the mallow parts, especially, it is fit for the thin route to fill the grove before the electroforming and wipe off the filling material after the electroforming. The process is easy. The period of filling and pulling off the model is short. The core model produced by the invention has many merits such as the low size precision, the good electric ability and without the remaining filling material after the pulling off the model.