US 2003/0111338 A1Published application

Electropolish/grinding means for an inner surface of a long tube

AssigneeIndustrial Technology Research Institute

InventorsChun-Hung Lin, Chen-Der Tsai, Hann-Tsong Wang, Jiun-Hung Chen, De-Chang Lin

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Abstract

The present invention is an electropolishing/grinding means for an inner surface of a long tube, which comprises at least one long tube, one electrode, at least two partitions, one fixed magnet mechanism, one driving apparatus and an axial driven mechanism; wherein, cooperation of the partitions, the fixed magnet mechanism and the driving apparatus is to form a magnetic levitation effect, which means using magnetic repulsiveness and magnetic attraction to keep away from the partitions and inner surface and avoid the eccentric situation; further, one of the two partitions has plural springs, plural protruding objects and plural abrasives to cooperate each other for firmly the abrasives touching onto the inner surface.

Claims18

Dependent claims

An electropolishing means for an inner surface of a long tube, which applied to polish the inner surface of the long tube full of electrolyte and comprises:

a fixed magnet mechanism having plural fixed magnets, and each axial longest side of every fixed magnet being combined and formed to become the fixed magnet mechanism;
at least one electrode having a cable bounded on one end of the electrode, the cable connecting to a first power device outside of the long tube for supplying power;
at least two partitions, which being a first partition and a second partition, the first partition being placed on an opposite end of the end of electrode bounding the cable, the second partition being axially placed on another end of the fixed magnet mechanism comparing to an end of the fixed magnet mechanism with the first partition, fixed magnet mechanism being radially and averagely distributed on the two partitions;
a driving apparatus having plural outer magnets around the tube, and a relative position in the tube being fixed magnet mechanism, which connecting to a second power device for supplying power to outer electromagnets;
and
an axial driven mechanism carrying both the driving apparatus and the second power device for axially moving aforesaid apparatuses and devices;
above electrode, two partitions and fixed magnet mechanism being in long tube and cooperating with driving apparatus, thus, electromagnet force driving fixed magnet in fixed magnet mechanism, therefore electrode, two partitions and fixed magnet mechanism being rotated along their same axis;
axial driven mechanism simultaneously driving driving apparatus and second power device, and the means moving parallel to the axis;
a whole electropolishing reaction in a long tube being completed when electrode connecting to first power device.

6 more elements

An electropolishing/grinding means for an inner surface of a long tube, which applied to polish the inner surface of the long tube full of electrolyte and comprises:

a fixed magnet mechanism having plural fixed magnets, and each axial longest side of every fixed magnet being combined and formed to become the fixed magnet mechanism;
at least one electrode having a cable bounded on one end of the electrode, the cable connecting to a first power device outside of the long tube for supplying power;
at least two partitions, which being a first partition and a second partition, the first partition being placed on an opposite end of the end of electrode bounding the cable, the second partition being axially placed on another end of the fixed magnet mechanism comparing to an end of the fixed magnet mechanism with the first partition, fixed magnet mechanism being radially and averagely distributed on the two partitions, plural closed fillisters being placed on a radial end of the second partition, and each of the closed fillister having a flexible element and a protruding object, the protruding object protruding outside the radial end and supporting an abrasive, and the abrasive continuously supporting the inner surface of tube for grinding;
a driving apparatus having plural outer magnets around the tube, and a relative position in the tube being fixed magnet mechanism, which connecting to a second power device for supplying power to outer electromagnets;
and
an axial driven mechanism carrying both the driving apparatus and the second power device for axially moving aforesaid apparatuses and devices;
above electrode, two partitions and fixed magnet mechanism being in long tube and cooperating with driving apparatus, thus, electromagnet force driving fixed magnet in fixed magnet mechanism, therefore electrode, two partitions and fixed magnet mechanism being rotated along their same axis;
axial driven mechanism simultaneously driving driving apparatus and second power device, and the means moving parallel to the axis;
a whole electropolishing/grinding reaction in a long tube being completed when electrode connecting to first power device.

6 more elements

Dependencies are inferred from the claim text.