JP2011202981A5 - Electrode for immersing molten metal and method for measuring dross in galvanized bath - Google Patents

Description

The present invention relates to a molten metal dipping electrode immersed in molten metal and a dross measurement method in a hot dip galvanizing tank using the electrode to measure the electrical characteristics of high temperature molten metal .

The present invention has been made to solve such problems, and is an electrode for immersing a molten metal that is less affected by thermal change when measuring electrical characteristics by immersing in a molten metal, and It aims at providing the dross measuring method in the hot dip galvanization tank using the electrode .

In the molten metal dipping electrode according to the present invention, the protective layer is formed of a metal tube.
In the molten metal immersion electrode according to the present invention, the protective layer and the electrical insulator are fixed by screw connection.
In the molten metal dipping electrode according to the present invention, the lid member is fixed to the opening of the electrical insulator by screwing.
The electrode for immersing molten metal according to the present invention further includes an insulating protective layer that covers outer peripheral portions of the protective layer, the electrical insulator, and the lid member.
The method for measuring dross in a hot dip galvanizing bath according to the present invention measures the bottom dross deposited on the bottom, which is an alloy of Zn, Al, and Fe, in the hot dip galvanizing bath, using the above molten metal immersion electrode. .

Claims (8)

An electrode for immersing a molten metal that is immersed in the molten metal to measure the electrical properties of the molten metal,
A conductor core wire,
An insulating layer covering the core wire except for its tip, and
A protective layer covering the insulating layer;
An electrical insulator having an opening at the center, passing through the core wire, covering a part of the end surface of the insulating layer and the end surface of the protective layer, and covering the outer periphery of the protective layer on the distal end side; ,
An electrode for immersing molten metal, comprising: a lid member that is inserted through the core wire and fixed to an opening of the electrical insulator.   2. The molten metal dipping method according to claim 1, wherein the protective layer and the electrical insulator are made of a material having a relationship of thermal expansion coefficient of the protective layer> thermal expansion coefficient of the electrical insulator. electrode.   3. The molten metal according to claim 1, wherein the electrical insulator and the lid member are made of a material having a relationship of thermal expansion coefficient of the electrical insulator <thermal expansion coefficient of the lid member. Immersion electrode.   The said protective layer is comprised from a metal pipe, The electrode for molten metal immersion as described in any one of Claims 1-3 characterized by the above-mentioned.   The electrode for molten metal immersion according to any one of claims 1 to 4, wherein the protective layer and the electrical insulator are fixed by screw connection.   The electrode for molten metal immersion according to any one of claims 1 to 5, wherein the lid member is screwed and fixed to an opening of the electrical insulator. The electrode for molten metal immersion according to any one of claims 1 to 6, further comprising an insulating protective layer that covers outer peripheral portions of the protective layer, the electrical insulator, and the lid member. It measures with the electrode for molten metal immersion as described in any one of Claims 1-7 which is the alloy of Zn, Al, and Fe in the hot dip galvanizing tank, and is deposited on the bottom part. A dross measurement method in a hot dip galvanizing tank.