Abstract:
Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed.
Abstract:
Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed.
Abstract:
An apparatus may comprise a degassing system and a treatment station. The treatment station may comprise a shell, a refractory disposed in the shell, and insulation disposed between the shell and the refractory. The refractory may comprise a first plurality of slots, a second plurality of slots, and a trough. The first plurality of slots may be upstream from the degassing system and the second plurality of slots may be downstream from the degassing system. A first skim brick may be slideably disposed in a first one of the first plurality of slots and a second skim brick may be slideably disposed in a first one of the second plurality of slots. A first filter may be slideably disposed in a second one of the first plurality of slots and a second filter may be slideably disposed in a second one of the second plurality of slots.
Abstract:
Methods for removing sludge and/or impurities from a molten metal are disclosed herein, as well as sludge removal devices and systems for use in the methods. Sludge removal devices that can reduce the downstream deposition of sludge in certain process components through upstream deposition and subsequent removal from the molten metal are also disclosed.
Abstract:
Methods for degassing and for removing impurities from molten metals are disclosed. These methods can include operating an ultrasonic device in a molten metal bath, and adding a purging gas into the molten metal bath in close proximity to the ultrasonic device.
Abstract:
Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed.
Abstract:
Ultrasonic probes containing a plurality of gas delivery channels are described, as well as ultrasonic probes containing recessed areas near the tip of the probe. These probes can be used in ultrasonic devices, and the ultrasonic devices can be used in molten metal processing operations to reduce the amount of dissolved gasses and impurities in molten metals.
Abstract:
Methods for degassing and for removing impurities from molten metals are disclosed. These methods can include operating an ultrasonic device in a molten metal bath, and adding a purging gas into the molten metal bath through the tip of the ultrasonic device.
Abstract:
Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed.
Abstract:
Devices may be in contact with molten metals such as copper, for example. The devices may include, but are not limited to, a die used for producing articles made from the molten metal, a sensor for determining an amount of a dissolved gas in the molten metal, or an ultrasonic device for reducing gas content (e.g., hydrogen) in the molten metal. Niobium may be used as a protective barrier for the devices when they are exposed to the molten metals.