US 6,660,138 B2 · Electropolishing process means for an inner surface of a long tube

Abstract

The present invention is an electropolishing process and device for electropolishing an inner surface of a long tube, especially applied to a long tube of greater than two meters and a diameter range between 0.3 and 5 cm. Wherein, the present invention comprises at least one tube, and one complex electrode. An inner surface of the tube is for electropolishing process, and it is an anode as well. The electrode is a cathode and placed on a center of a partition. An end of electrode connects to a cable, the cable is driven by an axial mechanism to be moved the electrode toward the axial mechanism itself. Inside of the tube is full o electrolyte, which is an electrifying medium to connect both anode and cathode. Further, electrolyte cooperates with the electrode to perform the electropolishing process on the inner surface of tube.

Claims14

Dependent claims

An electropolishing device for electropolishing an inner surface of a tube comprising:

a) a complex electrode having at least one electrode;
b) at least one disc-shaped partition, each partition having a plurality of slots on an outer circumference and a plurality of mesh holes, the complex electrode being connected to a center of the at least one partition;
c) a screw structure being connected to the complex electrode;
d) a cable connected to the complex electrode at a first end, the cable providing a direct current to the complex electrode;
and
e) an axle mechanism connected to a second end of the cable such that the axle mechanism moves the electrode through the tube in a direction opposite to a flow of an electrolyte to electropolish the inner surface of the tube.

3 more elements

Dependencies are inferred from the claim text.

Electropolishing process means for an inner surface of a long tube

Life of this patent

Electropolishing process means for an inner surface of a long tube

Life of this patent

Abstract

Claims14