Dimensionally stable anode and method and apparatus for forming the same
AssigneeDiamond Shamrock Corporation
InventorsRichard O. Olson, Gerald R. Pohto
Life of this patent
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Abstract
The specification and drawings disclose an anode for use in electrolytic cells, as well as a method and apparatus for forming the same. The anode is characterized in that its anode surfaces are formed from two sheets of metal having the same configuration and joined to an anode riser such that all weld joints are symmetrically located relative to the axis of the riser. The disclosed method involves a sequence of clamping all components during welding and maintains the various surfaces planar to eliminate warpage. The disclosed apparatus permits the various steps of the method to be carried out simply and rapidly.
Claims6
A method of forming a dimensionally stable anode for use in an electrolytic cell comprising the steps of:
- a. providing first and second sheets, each sheet having a major, generally planar, extent terminating in first and second edge portions, the second edge portion of each sheet comprising an integral leg portion bent to extend laterally from said planar extent and terminating in a tab portion extending generally parallel to said planar extent;
- b. providing a generally cylindrical anode riser member;
- c. positioning said pair of sheets in generally parallel relationship with the tab portion of the second edge portion of each sheet being parallel to, and in engagement with, the first edge portion of the other sheet and positioning said riser member to extend generally parallel to said first and second edge portions and between the major planar extent of said sheets to form an anode assembly;
- d. placing rigid platen members within the assembly to extend between the planar extents of the two sheets and between the leg portions and the riser member;
- e. clamping the assembly between rigid, planar, external platens positioned to leave exposed the first and second edge portions of each sheet and the external portions of the major planar extent of each sheet adjacent the riser;
- and, thereafter,
- f. joining the sheets to the riser and the second edge portion of each sheet to the first edge portion of the other sheet by welding.
Dependencies are inferred from the claim text.