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US 2024/0147585 A1Published application
Graphite electrode, electric furnace
AssigneeTokai Carbon Co., Ltd.
InventorsYohei Hirumi, Yoshihiko Kashihara, Mitsuhiro Adachi
Life of this patent
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Abstract
A graphite electrode includes a pole having a socket in an internal screw shape at an end portion, and a nipple in an external screw shape that can be fastened to the socket, wherein a value obtained by subtracting an effective diameter on a small diameter end side of the nipple from an effective diameter on a small diameter end side of the socket is 0.05 to 0.7 mm, and a value obtained by subtracting a taper angle of the socket from a taper angle of the nipple is −2 minutes to −3 minutes 30 seconds.
Claims5
A graphite electrode comprising:
- a pole including a socket in an internal screw shape at an end portion;
- and
- a nipple in an external screw shape that can be fastened to the socket, wherein
- a value obtained by subtracting an effective diameter on a small diameter end side of the nipple from an effective diameter on a small diameter end side of the socket is 0.05 to 0.7 mm, and
- a value obtained by subtracting a taper angle of the socket from a taper angle of the nipple is −2 minutes to −3 minutes 30 seconds.
2 more elements
A graphite electrode comprising:
- a pole including a socket in an internal screw shape at an end portion;
- and
- a nipple in an external screw shape that can be fastened to the socket, wherein
- a value obtained by subtracting a linear expansion coefficient of the nipple from a linear expansion coefficient of the pole is −0.4 to +0.5 (10−6/° C.).
1 more element
Dependencies are inferred from the claim text.