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1. 发明申请

US20220396861A1 DEVICE AND METHOD FOR MANUFACTURING A COATED METAL STRIP WITH IMPROVED APPEARANCE 有权
公开(公告)号：US20220396861A1
公开(公告)日：2022-12-15
申请号：US17775320
申请日：2020-11-25
申请人： JOHN COCKERILL S.A
发明人： Michel DUBOIS
IPC分类号： C23C2/20 , C23C2/40 , C23C2/00
摘要： The present invention relates to a gas wiping device for controlling the thickness of a coating layer deposited on a running metal strip plated with molten metal (1) in an industrial hot-dip installation, comprising a main nozzle unit (5) and a secondary nozzle unit (5A), to blow a wiping jet on the surface of the running strip, said main nozzle unit (5) and secondary nozzle unit (5A) being respectively provided with a main and secondary chamber (6, 6A) fed by pressurized non-oxidizing gas and with at least a main and N secondary elongated nozzle slot (7, 7A) formed in the tip of the respective main and secondary nozzle units (5, 5A), said tips comprising each an external top side (13, 13A), facing in use the downstream side of the running strip (1), and making an angle with the running strip surface, wherein the secondary nozzle unit (5A) is adjacent the main nozzle unit (5) over the external top side (13) of the main nozzle unit tip, so that the upper external surface (13A) of the secondary nozzle unit (5A) is designed to form, in use, an angle with the running strip surface comprised between 5° and 45°, wherein the thickness of the second slot opening (7A) is comprised between 1.5 and 3 times the thickness of the first slot opening (7), characterized in that the tip of the secondary nozzle unit has an external top side prolonged downstream by a first baffle plate making a first angle in use with respect to the running strip, so as to form a gas confinement region.

2. 发明申请

US20220349809A1 DYNAMIC TEST LOOP FOR DETERMINING MOLTEN SALT CORROSION 有权
公开(公告)号：US20220349809A1
公开(公告)日：2022-11-03
申请号：US17621701
申请日：2020-06-25
申请人： JOHN COCKERILL S.A.
发明人： Julie Bucci , Manuel Smolders , Ridha Harzallah , Stephane Winand
IPC分类号： G01N17/00
摘要： A dynamic corrosion and degradation testing installation is provided. The installation includes a tank for heating and storing, in use, a fluid at a given temperature. The installation further includes a looped circuit including a pipe containing the fluid during one or more tests, having a first end and a second end both connected to the tank. The installation also includes a pump for circulating the fluid in the pipe and multiple test stands located at different locations along the pipe. Each test stand including a sample holder or testing chamber holding, in use, a solid sample in contact with the fluid and a heater and configured to heat the sample holder. Each test stand includes the sample holder to hold the solid sample in a specific portion of the pipe. The specific portions of the pipe having the functionality of a test chamber and containing the fluid.

3. 发明申请

US20220251677A1 COOLING DEVICE FOR BLOWING GAS ONTO A SURFACE OF A TRAVELING STRIP 有权
公开(公告)号：US20220251677A1
公开(公告)日：2022-08-11
申请号：US17625781
申请日：2019-12-20
申请人： JOHN COCKERILL S.A.
发明人： Michel Dubois , Michel Boyer
IPC分类号： C21D9/573 , C22F1/04 , C22F1/00 , C21D1/62 , C21D1/613
摘要： A gas blower device for blowing gas onto a surface of a traveling strip includes a plenum in the form of a hollow box for containing gas and comprising two side surfaces, a back surface and a front surface opposite to the back surface. The front surface having a profile of convex type symmetry with respect to a mid-plane perpendicular to the plane of the strip, so that a middle ridge of the front surface is located at the smallest distance from the plane of the strip. The front surface further presenting multiple tubular nozzles protruding at the front surface and having a gas outlet orifice facing in use the traveling strip. All the outlet orifices are essentially in a plane parallel to the strip plane. The gas blower device further includes a gas intake tube for feeding the plenum with gas.

4. 发明授权

US11639537B2 Cooling device for blowing gas onto a surface of a traveling strip 有权
公开(公告)号：US11639537B2
公开(公告)日：2023-05-02
申请号：US17625781
申请日：2019-12-20
申请人： JOHN COCKERILL S.A.
发明人： Michel Dubois , Michel Boyer
IPC分类号： C21D9/573 , C22F1/04 , C22F1/00 , C21D1/62 , C21D1/613
摘要： A gas blower device for blowing gas onto a surface of a traveling strip includes a plenum in the form of a hollow box for containing gas and comprising two side surfaces, a back surface and a front surface opposite to the back surface. The front surface having a profile of convex type symmetry with respect to a mid-plane perpendicular to the plane of the strip, so that a middle ridge of the front surface is located at the smallest distance from the plane of the strip. The front surface further presenting multiple tubular nozzles protruding at the front surface and having a gas outlet orifice facing in use the traveling strip. All the outlet orifices are essentially in a plane parallel to the strip plane. The gas blower device further includes a gas intake tube for feeding the plenum with gas.

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