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公开(公告)号：US11020796B2
公开(公告)日：2021-06-01
申请号：US16332905
申请日：2017-10-23
申请人： Tounetsu Co., Ltd.
发明人： Kiyata Mochizuki , Manabu Yamada
IPC分类号： B22D18/04 , B22D41/015 , B22D45/00 , F23D14/12 , F27B3/20
摘要： An immersion-type burner heater includes a heater protection tube that is installed so as to penetrate a furnace wall or an upper lid of the molten-metal holding furnace with the tip end thereof being closed; an inner cylindrical member arranged inside the tube so as to define a combustion flow passage S between the tube and itself with the tip end side thereof being open and the inside thereof serving as an exhaust gas flow passage; and a gas burner part supplying fuel gas and air to the combustion flow passage. A helically extending projecting part is provided on at least one of the outer peripheral surface of the member and the inner peripheral surface of the tube at a position that is closer to its tip end side than to the part penetrating the furnace wall or the upper lid.
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公开(公告)号：US09636743B2
公开(公告)日：2017-05-02
申请号：US14896614
申请日：2014-07-17
申请人： TOUNETSU CO., LTD.
发明人： Kiyata Mochizuki
IPC分类号： B22D18/04 , B22D35/04 , B22D41/22 , B22D41/005 , B22D41/02
CPC分类号： B22D18/04 , B22D35/04 , B22D41/005 , B22D41/02 , B22D41/22
摘要： A dual-chambered molten metal holding furnace is for low pressure casting; producing cast products such as aluminum alloys using a low pressure casting method; and prevention of the gas release to the molten metal and the occurrence of air bubbles in the molten metal even when pressurized gas enters a material constituting the molten metal storage container. The part of a pressurizing chamber excluding a pressurizing pipe and a molten metal output pipe is opened to the atmosphere via an air passage gap positioned above a fixed molten metal surface level position L3. The air passage gap is positioned above the fixed molten metal surface level position L3. Even if pressurized gas is seeped into the material constituting a molten metal storage container via cracks or cracking subsequently occurred in the pressurizing pipe or minute gap originally present in the pressurizing pipe, the pressurized gas seeped from the air passage gap is released to the outside of the furnace.
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公开(公告)号：US20230063418A1
公开(公告)日：2023-03-02
申请号：US17774679
申请日：2020-04-06
申请人： TOUNETSU CO., LTD.
发明人： Kiyata Mochizuki
IPC分类号： B22D41/02
摘要： A molten metal furnace capable of preventing or suppressing the molten metal leakage and controlling the leakage direction. A molten metal furnace including an outer wall in an outer peripheral portion and a molten metal storage part holding a molten metal, in which a plurality of lining material layers are arranged on an inner wall of the molten metal furnace forming the molten metal storage part; of the lining material layers, a first lining layer constituting a surface in contact with the molten metal is made of a refractory material; and a sealing material is provided on at least one boundary between the first lining layer and the outer wall.
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公开(公告)号：US20220307768A1
公开(公告)日：2022-09-29
申请号：US17637345
申请日：2020-11-10
申请人： TOUNETSU CO., LTD.
发明人： Kiyata Mochizuki , Tomihiro Iwamoto
摘要： A metal melting apparatus capable of providing a clear melt with little oxides, even when either one or a mixture of scrap material and fresh material is supplied. Solution is provided by a metal melting apparatus including melting chamber to which a melt raw material is supplied, and gas injection system for injecting gas into melt in the melting chamber to generate a vortex of melt in the melting chamber.
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公开(公告)号：US10462851B2
公开(公告)日：2019-10-29
申请号：US15541079
申请日：2015-08-31
申请人： Tounetsu Co., Ltd
发明人： Kiyata Mochizuki
IPC分类号： H05B3/82 , B22D41/015 , B22D45/00 , H05B3/44 , F22B3/08 , H05B3/66 , B22D41/01 , F27B3/20 , F27D99/00
摘要： Provided is a molten metal holding furnace with heat dissipation and insulating properties. An insertion hole 20 of a molten metal holding furnace 10 has an inside cylindrical portion (tapered surface) 21 and an outside cylindrical portion 22 (cylindrical surface). A heating tube 30 has a distal cylindrical portion 35 corresponding to the inside cylindrical portion 21 and a proximal cylindrical portion 36 corresponding to the outside cylindrical portion 22. The heating tube 30 is inserted and positioned in the insertion hole with the distal cylindrical portion 35 positioned at the inner cylindrical portion 21 and the proximal cylindrical portion 36 positioned at the outside cylindrical portion 22. A filling material 60 is filled between the heating tube 30 and the insertion hole 20.
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公开(公告)号：US11850658B2
公开(公告)日：2023-12-26
申请号：US17774679
申请日：2020-04-06
申请人： TOUNETSU CO., LTD.
发明人： Kiyata Mochizuki
IPC分类号： B22D41/02
CPC分类号： B22D41/02
摘要： A molten metal furnace capable of preventing or suppressing the molten metal leakage and controlling the leakage direction. A molten metal furnace including an outer wall in an outer peripheral portion and a molten metal storage part holding a molten metal, in which a plurality of lining material layers are arranged on an inner wall of the molten metal furnace forming the molten metal storage part; of the lining material layers, a first lining layer constituting a surface in contact with the molten metal is made of a refractory material; and a sealing material is provided on at least one boundary between the first lining layer and the outer wall.
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公开(公告)号：US20230272504A1
公开(公告)日：2023-08-31
申请号：US18035228
申请日：2021-07-30
申请人： Tounetsu Co., Ltd.
发明人： Kiyata Mochizuki , Tomihiro Iwamoto
摘要： A molten metal mixing system capable of controlling generation of oxides in mixing of molten metals to. The system includes 1st/2nd apparatus for melting 1st/2nd raw materials into 1st/2nd molten metals, and a pipe connecting the 1st and 2nd apparatus. The 2nd molten metal produced in the 2nd apparatus is transferred through the pipe to the 1st apparatus to mix with the 1st raw material and/or the 1st molten metal. The 2nd apparatus has a tapping chamber for retaining the 2nd molten metal to be transferred to the 1st apparatus. The 1st apparatus has a receiving chamber for retaining the 2nd molten metal transferred from the 2nd apparatus. When part of the 2nd molten metal is discharged out of the receiving chamber to lower the surface of the molten metal, the 2nd molten metal in the tapping chamber is transferred through the pipe into the receiving chamber by siphon principle.
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公开(公告)号：US11415368B2
公开(公告)日：2022-08-16
申请号：US17250869
申请日：2019-09-19
申请人： TOUNETSU CO., LTD.
发明人： Kiyata Mochizuki
摘要： A melting and holding furnace includes a main body and a material input mechanism supplying a molten metal to the body which includes a melting chamber; a molten metal receiving chamber; a pumping-out chamber; and a molten metal heating mechanism. The input mechanism includes a molten-metal surface level sensor to detect that the surface height position of the metal in the pumping-out chamber has reached a lower limit that is set to be above the lower surface height position of a lid of the melting chamber, and is set to supply the receiving chamber with the metal and/or the metal block when the sensor detects that the surface height position of the metal in the pumping-out chamber has reached the lower limit so that the surface height position of the metal in the pumping-out chamber is always kept above the lower surface height position of the lid.
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公开(公告)号：US10356850B2
公开(公告)日：2019-07-16
申请号：US15541084
申请日：2015-08-31
申请人： Tounetsu Co., Ltd
发明人： Kiyata Mochizuki
IPC分类号： H05B3/44 , H05B3/66 , H05B3/82 , F27B3/20 , F27D99/00 , F27D11/02 , F22B3/08 , B22D45/00 , B22D41/01
摘要： Provided is a heater protection tube for use with a molten metal holding furnace with heat dissipation and insulating properties. A heat protection tube 31 has a distal tapered cylindrical portion 35 corresponding to the inside tapered cylindrical portion 21 and a proximal non-tapered cylindrical portion 36 corresponding to the outside non-tapered cylindrical portion 22. The heater protection tube (31) is configured so that it can be mounted in the side wall (13) with the distal tapered cylindrical portion (35) located at the inside tapered cylindrical portion (21) and with the proximal non-tapered cylindrical portion (36) located at the outside non-tapered cylindrical portion (22).
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