Method and equipment for providing the edge of a starting sheet with a dielectric strip
AssigneeOutotec Oyj
InventorsLauri Nordlund, Arto Huotari
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Abstract
A device for providing the edge of a starting sheet of an electrode used in the electrolytic refining or recovery of metals with a dielectric part comprises a die space, in which the edge of the starting sheet of the electrode can at least partly be fitted, and a feeding device of the dielectric material for feeding the dielectric material into the die space. The device comprises changing members of the volume of the die space for pressing the dielectric material in the die space to that edge of the starting sheet of the electrode, which is at least partly fitted in the die space.
Claims21
A method of providing an edge of a starting sheet of an electrode with a dielectric strip of dielectric material, comprising:
- a positioning stage, wherein the edge of the starting sheet of the electrode is at least partly fitted in a die space;
- a feeding stage, wherein the dielectric material is fed into the die space;
- a melting stage, wherein the dielectric material is melted;
- and
- a solidification stage, wherein the dielectric material is solidified in the die space forming the edge of the starting sheet of the electrode, which is at least partly fitted in the die space, with the dielectric strip;
- wherein
- the dielectric material in the die space forming the dielectric strip, is pressed to the edge of the starting sheet of the electrode which at least partly lies in the die space during the solidification stage,
- and wherein the die space consists of several die parts, at least one of which is a movable die part, and
- at least one movable die part is moved with respect to the die space, so that the volume of the die space is reduced during the solidification stage.
Equipment for providing an edge of a starting sheet of an electrode with a dielectric strip of dielectric material, comprising:
- melting equipment for melting the dielectric material;
- a die space, in which the edge of the starting sheet of the electrode can at least partly be fitted and where the dielectric material melted by the melting equipment is adapted to solidify to form the dielectric strip;
- and
- a feeding device configured to feed the dielectric material into the die space;
- wherein
- the equipment comprises pressing members for pressing the dielectric material in the die space to an edge of the starting sheet of the electrode, which is at least partly fitted in the die space, during solidification of the dielectric material melted by the melting equipment,
- and the pressing members comprise members changing the volume of the die space and pressing the dielectric material in the die space to that edge of the starting sheet of the electrode, which is at least partly fitted in the die space, during the solidification of the dielectric material, and
- wherein the die space comprises several die parts, at least one of which is movable with respect to the die space;
- and
- wherein the die parts can at least partly be fitted around the edge of the starting sheet of the electrode, so that the edge of the starting sheet of the electrode is at least partly located in the die space formed by the die parts;
- and
- wherein said at least one movable die part constitutes the changing member of the volume of the die space, so that the said at least one movable die part can be moved with respect to the die space, when the edge of the starting sheet of the electrode is at least partly located in the die space and the dielectric material has been fed into the die space, so that the volume of the die space decreases during the solidification of the dielectric material melted by the melting equipment.
Dependencies are inferred from the claim text.