A molten metal supplying container, comprising a container capable of storing a molten metal and loading the molten metal to the inside thereof or supplying the molten metal to the outside thereof by controlling a difference in pressure between inside and outside of the container, a passage allowing
A molten metal supplying container, comprising a container capable of storing a molten metal and loading the molten metal to the inside thereof or supplying the molten metal to the outside thereof by controlling a difference in pressure between inside and outside of the container, a passage allowing the inside and outside of the container to communicate with each other to have the molten metal flow therethrough, a lid disposed to cover the first opening having a second opening with a diameter smaller than the first opening and a hatch provided at the second opening capable of being opened and closed, having a passage communicating inside and outside the container. The passage is used, for example, to control inner pressure of the container and to insert the electrode for detecting the surface level of the molten metal.
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The invention claimed is: 1. A molten metal supplying container including a container having a passage communicating an inside and an outside of the container and applying a pressure to the inside of the container, the container being capable of storing a molten metal and allowing the molten metal
The invention claimed is: 1. A molten metal supplying container including a container having a passage communicating an inside and an outside of the container and applying a pressure to the inside of the container, the container being capable of storing a molten metal and allowing the molten metal to flow between the inside and the outside of the container owing to a pressure difference when the pressure is applied to the container by a pressurizing gas supply unit via an air hose having a first socket at an end portion of the air hose, comprising: a first flow path, communicating the inside and the outside of the container, and allowing the molten metal to flow therein; a first pipe disposed in the passage and having a plug at an end portion of the first pipe, the first pipe extending to an upper direction from an upper portion of the container, and bending at a predetermined height in a horizontal direction, and the plug extending in the horizontal direction, the plug being configured such that the first socket can be detachably connected to the plug, the plug and the first socket constituting a coupler structure; a cap having a second pipe, a second socket, and a restricting member, the second pipe being filled with the restricting member and provided with the second socket at an end portion of the second pipe, the second socket being detachably connected, in a case where the first socket is detached from the plug, to the plug of the first pipe such that the second pipe connects to the first pipe, the plug and the second socket constituting the coupler structure, and the restricting member being configured to allow a gas to pass through the second pipe and restricting the molten metal to pass through the second pipe in a case where the container stores the molten metal and is transferred, the restricting member depriving the molten metal, when passing through the restricting member, of heat to solidify such that the solidified metal restricts a further flow of the molten metal. 2. The molten metal supplying container as set forth in claim 1, wherein the container has a container main body having a first opening at an upper portion, a lid disposed to cover the first opening of the container and having a second opening having a diameter smaller than the first opening, and a hatch openably disposed at the second opening and having the passage. 3. A safety device of a container capable of storing a molten metal and allowing the molten metal to flow between an inside and an outside of the container owing to a pressure difference when the pressure is applied to the container by a pressurizing gas supply unit via an air hose having a first socket at an end portion of the air hose, comprising: a passage disposed at an upper portion of the container-and being capable of releasing an inner pressure of the container for applying a pressure to the inside of the container; a first pipe disposed in the passage and having a plug at an end portion of the first pipe, the plug being configured such that the first socket can be detachably connected to the plug, the plug and the first socket constituting a coupler structure; and a cap having a second pipe, a second socket, and a restricting member, the second pipe being filled with the restricting member and provided with the second socket at an end portion of the second pipe, the second socket being detachably connected, in a case where the first socket is detached from the plug, to the plug of the first pipe such that the second pipe connects to the first pipe, the plug and the second socket constituting the coupler structure, and the restricting member being configured to allow a gas to pass through the second pipe and restricting the molten metal to pass through the second pipe in a case where the container stores the molten metal and is transferred, the restricting member depriving the molten metal, when passing through the restricting member, of heat to solidify such that the solidified metal restricts a further flow of the molten metal. 4. the safety device as set forth in claim 3, wherein the passage is configured to allow the molten metal inside the container to flow thereinto, and wherein the restricting member removes a heat from the molten metal to increase a viscosity of the molten metal when the molten metal inside the container flows into the passage. 5. A molten metal supplying container, including a container capable of storing a molten metal, and allowing the molten metal to flow between an inside and an outside of the container owing to a pressure difference when the pressure is applied to the container by a pressurizing gas supply unit via an air hose having a first socket at an end portion of the air hose, comprising: a first flow path communicating the inside and the outside of the container, and allowing the molten metal to flow therein; a pressure releasing pipe provided to an upper portion of the container and being capable of releasing an inner pressure of the container, for applying a pressure to the inside of the container; a plug provided to an end portion of the pressure releasing pipe, the plug being configured such that the first socket can be detachably connected to the plug, the plug and the first socket constituting a coupler structure; and a cap having a pipe, a second socket, and a restricting member, the pipe being filled with the restricting member and provided the second socket with at an end portion of the pipe, the second socket being detachably connected, in a case where the first socket is detached from the plug, to the plug of the pressure releasing pipe such that the pipe connects to the pressure releasing pipe, the plug and the second socket constituting the coupler structure, and the restricting member being configured to allow a gas to pass through the pipe and restricting the molten metal to pass through the pipe in a case where the container stores the molten metal and is transferred, the restricting member depriving the molten metal, when passing through the restricting member, of heat to solidify such that the solidified metal restricts a further flow of the molten metal. 6. A safety cap of a container having a passage in which a first pipe having a plug at an end portion of the first pipe is disposed, at an upper portion, storing a molten metal, and being delivered from a first factory to a second factory, the passage being capable of releasing an inner pressure of the container and applying a pressure to an inside of the container via an air hose having a first socket at an end portion of the air hose detachably connected to the plug, the plug and the first socket constituting a coupler structure, comprising: a second pipe filled with a restricting member; a second socket provided to an end portion of the second pipe, the second socket being configured to be detachably connected, in a case where the first socket is detached from the plug, to the plug of the first pipe such that the second pipe connects to the first pipe, the plug and the second socket constituting the coupler structure; and a restricting member allowing a gas to pass through second the pipe and restricting the molten metal to pass through the second pipe, the restricting member depriving the molten metal, when passing through the restricting member, of heat to solidify such that the solidified metal restricts a further flow of the molten metal, wherein the second socket of the safety cap is detachably connected to the plug in a case where the container stores the molten metal and is transferred. 7. The safety cap as set forth in claim 6, wherein the restricting member allows air to pass therethrough and prevents molten aluminum to pass therethrough. 8. The safety cap as set forth in claim 6, wherein the restricting member is one selected from the group consisting of a member formed of a ceramic fiber, a molded product of sintered metal, porcelain, and a member obtained by disposing to a metal one of a passage and an orifice each having a small diameter.
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